diff --git a/src/main/kc/stdlib/sqr.kc b/src/main/kc/stdlib/sqr.kc
index 0e29af67e..b74120065 100644
--- a/src/main/kc/stdlib/sqr.kc
+++ b/src/main/kc/stdlib/sqr.kc
@@ -15,7 +15,7 @@ void init_squares() {
     SQUARES = malloc(NUM_SQUARES*sizeof(word));
     word* squares = SQUARES;
     word sqr = 0;
-    for( byte i: 0..NUM_SQUARES-1) {
+    for(byte i=0;i<NUM_SQUARES;i++) {
         *squares++ = sqr;
         sqr += i*2+1;
     }
diff --git a/src/test/kc/complex/tetris/tetris-data.kc b/src/test/kc/complex/tetris/tetris-data.kc
index 6c5ed6eb1..35313fbb1 100644
--- a/src/test/kc/complex/tetris/tetris-data.kc
+++ b/src/test/kc/complex/tetris/tetris-data.kc
@@ -10,7 +10,7 @@ const char* PLAYFIELD_SPRITE_PTRS_1 = (PLAYFIELD_SCREEN_1+SPRITE_PTRS);
 // Screen Sprite pointers on screen 2
 const char* PLAYFIELD_SPRITE_PTRS_2 = (PLAYFIELD_SCREEN_2+SPRITE_PTRS);
 // Address of the original playscreen chars
-const char* PLAYFIELD_SCREEN_ORIGINAL = 0x1800;
+const char* PLAYFIELD_SCREEN_ORIGINAL = 0x3000;
 // Address of the original playscreen colors
 const char* PLAYFIELD_COLORS_ORIGINAL = 0x1c00;
 // Address of the sprites covering the playfield
diff --git a/src/test/ref/complex/tetris/tetris.asm b/src/test/ref/complex/tetris/tetris.asm
index 3eec86a9f..482953b4d 100644
--- a/src/test/ref/complex/tetris/tetris.asm
+++ b/src/test/ref/complex/tetris/tetris.asm
@@ -91,7 +91,7 @@
   // Screen Sprite pointers on screen 2
   .label PLAYFIELD_SPRITE_PTRS_2 = PLAYFIELD_SCREEN_2+SPRITE_PTRS
   // Address of the original playscreen chars
-  .label PLAYFIELD_SCREEN_ORIGINAL = $1800
+  .label PLAYFIELD_SCREEN_ORIGINAL = $3000
   // Address of the original playscreen colors
   .label PLAYFIELD_COLORS_ORIGINAL = $1c00
   // Address of the sprites covering the playfield
diff --git a/src/test/ref/complex/tetris/tetris.log b/src/test/ref/complex/tetris/tetris.log
index 1c61d5999..2ff39ae0d 100644
--- a/src/test/ref/complex/tetris/tetris.log
+++ b/src/test/ref/complex/tetris/tetris.log
@@ -3459,7 +3459,7 @@ SYMBOL TABLE SSA
 (const byte) PLAYFIELD_LINES = (byte) $16
 (const byte*) PLAYFIELD_SCREEN_1 = (byte*)(number) $400
 (const byte*) PLAYFIELD_SCREEN_2 = (byte*)(number) $2c00
-(const byte*) PLAYFIELD_SCREEN_ORIGINAL = (byte*)(number) $1800
+(const byte*) PLAYFIELD_SCREEN_ORIGINAL = (byte*)(number) $3000
 (const byte*) PLAYFIELD_SPRITES = (byte*)(number) $2000
 (const byte*) PLAYFIELD_SPRITE_PTRS_1 = (const byte*) PLAYFIELD_SCREEN_1+(const word) SPRITE_PTRS
 (const byte*) PLAYFIELD_SPRITE_PTRS_2 = (const byte*) PLAYFIELD_SCREEN_2+(const word) SPRITE_PTRS
@@ -6514,7 +6514,7 @@ Simplifying constant pointer cast (byte*) 54290
 Simplifying constant pointer cast (byte*) 54299
 Simplifying constant pointer cast (byte*) 1024
 Simplifying constant pointer cast (byte*) 11264
-Simplifying constant pointer cast (byte*) 6144
+Simplifying constant pointer cast (byte*) 12288
 Simplifying constant pointer cast (byte*) 7168
 Simplifying constant pointer cast (byte*) 8192
 Simplifying constant pointer cast (byte*) 10240
@@ -11725,7 +11725,7 @@ Target platform is c64basic / MOS6502X
   // Screen Sprite pointers on screen 2
   .label PLAYFIELD_SPRITE_PTRS_2 = PLAYFIELD_SCREEN_2+SPRITE_PTRS
   // Address of the original playscreen chars
-  .label PLAYFIELD_SCREEN_ORIGINAL = $1800
+  .label PLAYFIELD_SCREEN_ORIGINAL = $3000
   // Address of the original playscreen colors
   .label PLAYFIELD_COLORS_ORIGINAL = $1c00
   // Address of the sprites covering the playfield
@@ -16882,7 +16882,7 @@ ASSEMBLER BEFORE OPTIMIZATION
   // Screen Sprite pointers on screen 2
   .label PLAYFIELD_SPRITE_PTRS_2 = PLAYFIELD_SCREEN_2+SPRITE_PTRS
   // Address of the original playscreen chars
-  .label PLAYFIELD_SCREEN_ORIGINAL = $1800
+  .label PLAYFIELD_SCREEN_ORIGINAL = $3000
   // Address of the original playscreen colors
   .label PLAYFIELD_COLORS_ORIGINAL = $1c00
   // Address of the sprites covering the playfield
@@ -21056,7 +21056,7 @@ FINAL SYMBOL TABLE
 (const byte) PLAYFIELD_LINES = (byte) $16
 (const byte*) PLAYFIELD_SCREEN_1 = (byte*) 1024
 (const byte*) PLAYFIELD_SCREEN_2 = (byte*) 11264
-(const byte*) PLAYFIELD_SCREEN_ORIGINAL = (byte*) 6144
+(const byte*) PLAYFIELD_SCREEN_ORIGINAL = (byte*) 12288
 (const byte*) PLAYFIELD_SPRITES = (byte*) 8192
 (const byte*) PLAYFIELD_SPRITE_PTRS_1 = (const byte*) PLAYFIELD_SCREEN_1+(const word) SPRITE_PTRS
 (const byte*) PLAYFIELD_SPRITE_PTRS_2 = (const byte*) PLAYFIELD_SCREEN_2+(const word) SPRITE_PTRS
@@ -22135,7 +22135,7 @@ Score: 3353855
   // Screen Sprite pointers on screen 2
   .label PLAYFIELD_SPRITE_PTRS_2 = PLAYFIELD_SCREEN_2+SPRITE_PTRS
   // Address of the original playscreen chars
-  .label PLAYFIELD_SCREEN_ORIGINAL = $1800
+  .label PLAYFIELD_SCREEN_ORIGINAL = $3000
   // Address of the original playscreen colors
   .label PLAYFIELD_COLORS_ORIGINAL = $1c00
   // Address of the sprites covering the playfield
diff --git a/src/test/ref/complex/tetris/tetris.sym b/src/test/ref/complex/tetris/tetris.sym
index e9a0a870e..88448d437 100644
--- a/src/test/ref/complex/tetris/tetris.sym
+++ b/src/test/ref/complex/tetris/tetris.sym
@@ -69,7 +69,7 @@
 (const byte) PLAYFIELD_LINES = (byte) $16
 (const byte*) PLAYFIELD_SCREEN_1 = (byte*) 1024
 (const byte*) PLAYFIELD_SCREEN_2 = (byte*) 11264
-(const byte*) PLAYFIELD_SCREEN_ORIGINAL = (byte*) 6144
+(const byte*) PLAYFIELD_SCREEN_ORIGINAL = (byte*) 12288
 (const byte*) PLAYFIELD_SPRITES = (byte*) 8192
 (const byte*) PLAYFIELD_SPRITE_PTRS_1 = (const byte*) PLAYFIELD_SCREEN_1+(const word) SPRITE_PTRS
 (const byte*) PLAYFIELD_SPRITE_PTRS_2 = (const byte*) PLAYFIELD_SCREEN_2+(const word) SPRITE_PTRS
diff --git a/src/test/ref/plasma-center.asm b/src/test/ref/plasma-center.asm
index 5144ff456..e3ff4164e 100644
--- a/src/test/ref/plasma-center.asm
+++ b/src/test/ref/plasma-center.asm
@@ -886,11 +886,15 @@ init_squares: {
     sta.z squares
     lda.z SQUARES+1
     sta.z squares+1
-    ldx #0
-    txa
+    lda #<0
     sta.z sqr
     sta.z sqr+1
+    tax
   __b1:
+    cpx #NUM_SQUARES
+    bcc __b2
+    rts
+  __b2:
     ldy #0
     lda.z sqr
     sta (squares),y
@@ -915,9 +919,7 @@ init_squares: {
     inc.z sqr+1
   !:
     inx
-    cpx #NUM_SQUARES-1+1
-    bne __b1
-    rts
+    jmp __b1
 }
 // Allocates a block of size bytes of memory, returning a pointer to the beginning of the block.
 // The content of the newly allocated block of memory is not initialized, remaining with indeterminate values.
diff --git a/src/test/ref/plasma-center.cfg b/src/test/ref/plasma-center.cfg
index 14800598d..178aebfd1 100644
--- a/src/test/ref/plasma-center.cfg
+++ b/src/test/ref/plasma-center.cfg
@@ -521,26 +521,28 @@ sqr::@return: scope:[sqr]  from sqr
 init_squares: scope:[init_squares]  from init_dist_screen
   [242] phi()
   [243] call malloc 
-  to:init_squares::@2
-init_squares::@2: scope:[init_squares]  from init_squares
+  to:init_squares::@3
+init_squares::@3: scope:[init_squares]  from init_squares
   [244] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0
   [245] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1
   to:init_squares::@1
-init_squares::@1: scope:[init_squares]  from init_squares::@1 init_squares::@2
-  [246] (byte) init_squares::i#2 ← phi( init_squares::@1/(byte) init_squares::i#1 init_squares::@2/(byte) 0 )
-  [246] (word*) init_squares::squares#2 ← phi( init_squares::@1/(word*) init_squares::squares#1 init_squares::@2/(word*) init_squares::squares#0 )
-  [246] (word) init_squares::sqr#2 ← phi( init_squares::@1/(word) init_squares::sqr#1 init_squares::@2/(word) 0 )
-  [247] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
-  [248] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
-  [249] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1
-  [250] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
-  [251] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4
-  [252] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2
-  [253] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1
+init_squares::@1: scope:[init_squares]  from init_squares::@2 init_squares::@3
+  [246] (word*) init_squares::squares#2 ← phi( init_squares::@2/(word*) init_squares::squares#1 init_squares::@3/(word*) init_squares::squares#0 )
+  [246] (word) init_squares::sqr#2 ← phi( init_squares::@2/(word) init_squares::sqr#1 init_squares::@3/(word) 0 )
+  [246] (byte) init_squares::i#2 ← phi( init_squares::@2/(byte) init_squares::i#1 init_squares::@3/(byte) 0 )
+  [247] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2
   to:init_squares::@return
 init_squares::@return: scope:[init_squares]  from init_squares::@1
-  [254] return 
+  [248] return 
   to:@return
+init_squares::@2: scope:[init_squares]  from init_squares::@1
+  [249] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
+  [250] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
+  [251] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1
+  [252] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
+  [253] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4
+  [254] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2
+  to:init_squares::@1
 
 (void*()) malloc((word) malloc::size)
 malloc: scope:[malloc]  from @1 @3 init_squares
diff --git a/src/test/ref/plasma-center.log b/src/test/ref/plasma-center.log
index 10d454ff9..0b777f47c 100644
--- a/src/test/ref/plasma-center.log
+++ b/src/test/ref/plasma-center.log
@@ -48,7 +48,10 @@ Culled Empty Block (label) @13
 Culled Empty Block (label) @14
 Culled Empty Block (label) @15
 Culled Empty Block (label) @16
-Culled Empty Block (label) init_squares::@2
+Culled Empty Block (label) init_squares::@4
+Culled Empty Block (label) init_squares::@3
+Culled Empty Block (label) init_squares::@5
+Culled Empty Block (label) init_squares::@6
 Culled Empty Block (label) @18
 Culled Empty Block (label) sqr::@1
 Culled Empty Block (label) @19
@@ -277,7 +280,7 @@ bsearch16u::@3: scope:[bsearch16u]  from bsearch16u::@1 bsearch16u::@2
   (word*) bsearch16u::return#2 ← (word*~) bsearch16u::$4
   to:bsearch16u::@return
 @17: scope:[]  from @9
-  (byte*) heap_head#36 ← phi( @9/(byte*) heap_head#0 )
+  (byte*) heap_head#37 ← phi( @9/(byte*) heap_head#0 )
   (byte) NUM_SQUARES#0 ← (byte) $ff
   (word*) SQUARES#0 ← (word*) 0
   to:@22
@@ -290,9 +293,9 @@ init_squares: scope:[init_squares]  from init_dist_screen
   (word) malloc::size#0 ← (byte~) init_squares::$0
   call malloc 
   (void*) malloc::return#2 ← (void*) malloc::return#1
-  to:init_squares::@3
-init_squares::@3: scope:[init_squares]  from init_squares
-  (byte) NUM_SQUARES#7 ← phi( init_squares/(byte) NUM_SQUARES#6 )
+  to:init_squares::@7
+init_squares::@7: scope:[init_squares]  from init_squares
+  (byte) NUM_SQUARES#14 ← phi( init_squares/(byte) NUM_SQUARES#6 )
   (byte*) heap_head#14 ← phi( init_squares/(byte*) heap_head#2 )
   (void*) malloc::return#6 ← phi( init_squares/(void*) malloc::return#2 )
   (void*~) init_squares::$1 ← (void*) malloc::return#6
@@ -300,24 +303,32 @@ init_squares::@3: scope:[init_squares]  from init_squares
   (word*) SQUARES#1 ← ((word*)) (void*~) init_squares::$1
   (word*) init_squares::squares#0 ← (word*) SQUARES#1
   (word) init_squares::sqr#0 ← (word) 0
-  (number~) init_squares::$2 ← (byte) NUM_SQUARES#7 - (number) 1
   (byte) init_squares::i#0 ← (byte) 0
   to:init_squares::@1
-init_squares::@1: scope:[init_squares]  from init_squares::@1 init_squares::@3
-  (word*) SQUARES#17 ← phi( init_squares::@1/(word*) SQUARES#17 init_squares::@3/(word*) SQUARES#1 )
-  (byte*) heap_head#25 ← phi( init_squares::@1/(byte*) heap_head#25 init_squares::@3/(byte*) heap_head#3 )
-  (byte) init_squares::i#2 ← phi( init_squares::@1/(byte) init_squares::i#1 init_squares::@3/(byte) init_squares::i#0 )
-  (word*) init_squares::squares#2 ← phi( init_squares::@1/(word*) init_squares::squares#1 init_squares::@3/(word*) init_squares::squares#0 )
-  (word) init_squares::sqr#2 ← phi( init_squares::@1/(word) init_squares::sqr#1 init_squares::@3/(word) init_squares::sqr#0 )
+init_squares::@1: scope:[init_squares]  from init_squares::@2 init_squares::@7
+  (word*) SQUARES#17 ← phi( init_squares::@2/(word*) SQUARES#26 init_squares::@7/(word*) SQUARES#1 )
+  (byte*) heap_head#25 ← phi( init_squares::@2/(byte*) heap_head#31 init_squares::@7/(byte*) heap_head#3 )
+  (word*) init_squares::squares#3 ← phi( init_squares::@2/(word*) init_squares::squares#1 init_squares::@7/(word*) init_squares::squares#0 )
+  (word) init_squares::sqr#3 ← phi( init_squares::@2/(word) init_squares::sqr#1 init_squares::@7/(word) init_squares::sqr#0 )
+  (byte) NUM_SQUARES#7 ← phi( init_squares::@2/(byte) NUM_SQUARES#13 init_squares::@7/(byte) NUM_SQUARES#14 )
+  (byte) init_squares::i#2 ← phi( init_squares::@2/(byte) init_squares::i#1 init_squares::@7/(byte) init_squares::i#0 )
+  (bool~) init_squares::$2 ← (byte) init_squares::i#2 < (byte) NUM_SQUARES#7
+  if((bool~) init_squares::$2) goto init_squares::@2
+  to:init_squares::@return
+init_squares::@2: scope:[init_squares]  from init_squares::@1
+  (word*) SQUARES#26 ← phi( init_squares::@1/(word*) SQUARES#17 )
+  (byte*) heap_head#31 ← phi( init_squares::@1/(byte*) heap_head#25 )
+  (byte) NUM_SQUARES#13 ← phi( init_squares::@1/(byte) NUM_SQUARES#7 )
+  (byte) init_squares::i#3 ← phi( init_squares::@1/(byte) init_squares::i#2 )
+  (word*) init_squares::squares#2 ← phi( init_squares::@1/(word*) init_squares::squares#3 )
+  (word) init_squares::sqr#2 ← phi( init_squares::@1/(word) init_squares::sqr#3 )
   *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
   (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
-  (number~) init_squares::$3 ← (byte) init_squares::i#2 * (number) 2
+  (number~) init_squares::$3 ← (byte) init_squares::i#3 * (number) 2
   (number~) init_squares::$4 ← (number~) init_squares::$3 + (number) 1
   (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (number~) init_squares::$4
-  (byte) init_squares::i#1 ← (byte) init_squares::i#2 + rangenext(0,init_squares::$2)
-  (bool~) init_squares::$5 ← (byte) init_squares::i#1 != rangelast(0,init_squares::$2)
-  if((bool~) init_squares::$5) goto init_squares::@1
-  to:init_squares::@return
+  (byte) init_squares::i#1 ← ++ (byte) init_squares::i#3
+  to:init_squares::@1
 init_squares::@return: scope:[init_squares]  from init_squares::@1
   (word*) SQUARES#8 ← phi( init_squares::@1/(word*) SQUARES#17 )
   (byte*) heap_head#15 ← phi( init_squares::@1/(byte*) heap_head#25 )
@@ -341,7 +352,7 @@ sqr::@return: scope:[sqr]  from sqr
 
 (byte()) sqrt((word) sqrt::val)
 sqrt: scope:[sqrt]  from init_dist_screen::@21
-  (byte) NUM_SQUARES#8 ← phi( init_dist_screen::@21/(byte) NUM_SQUARES#13 )
+  (byte) NUM_SQUARES#8 ← phi( init_dist_screen::@21/(byte) NUM_SQUARES#15 )
   (word*) SQUARES#10 ← phi( init_dist_screen::@21/(word*) SQUARES#20 )
   (word) sqrt::val#1 ← phi( init_dist_screen::@21/(word) sqrt::val#0 )
   (word) bsearch16u::key#0 ← (word) sqrt::val#1
@@ -578,9 +589,9 @@ atan2_16::@return: scope:[atan2_16]  from atan2_16::@8
   return 
   to:@return
 @22: scope:[]  from @17
-  (word*) SQUARES#46 ← phi( @17/(word*) SQUARES#0 )
-  (byte) NUM_SQUARES#39 ← phi( @17/(byte) NUM_SQUARES#0 )
-  (byte*) heap_head#31 ← phi( @17/(byte*) heap_head#36 )
+  (word*) SQUARES#47 ← phi( @17/(word*) SQUARES#0 )
+  (byte) NUM_SQUARES#41 ← phi( @17/(byte) NUM_SQUARES#0 )
+  (byte*) heap_head#32 ← phi( @17/(byte*) heap_head#37 )
   (byte*) print_screen#0 ← (byte*)(number) $400
   (byte*) print_line_cursor#0 ← (byte*) print_screen#0
   (byte*) print_char_cursor#0 ← (byte*) print_line_cursor#0
@@ -643,9 +654,9 @@ sid_rnd::@return: scope:[sid_rnd]  from sid_rnd
   (byte*) print_screen#12 ← phi( @22/(byte*) print_screen#0 )
   (byte*) print_char_cursor#41 ← phi( @22/(byte*) print_char_cursor#0 )
   (byte*) print_line_cursor#34 ← phi( @22/(byte*) print_line_cursor#0 )
-  (word*) SQUARES#44 ← phi( @22/(word*) SQUARES#46 )
-  (byte) NUM_SQUARES#35 ← phi( @22/(byte) NUM_SQUARES#39 )
-  (byte*) heap_head#23 ← phi( @22/(byte*) heap_head#31 )
+  (word*) SQUARES#45 ← phi( @22/(word*) SQUARES#47 )
+  (byte) NUM_SQUARES#37 ← phi( @22/(byte) NUM_SQUARES#41 )
+  (byte*) heap_head#23 ← phi( @22/(byte*) heap_head#32 )
   (word) malloc::size#1 ← (number) $3e8
   call malloc 
   (void*) malloc::return#3 ← (void*) malloc::return#1
@@ -654,8 +665,8 @@ sid_rnd::@return: scope:[sid_rnd]  from sid_rnd
   (byte*) print_screen#11 ← phi( @48/(byte*) print_screen#12 )
   (byte*) print_char_cursor#37 ← phi( @48/(byte*) print_char_cursor#41 )
   (byte*) print_line_cursor#30 ← phi( @48/(byte*) print_line_cursor#34 )
-  (word*) SQUARES#41 ← phi( @48/(word*) SQUARES#44 )
-  (byte) NUM_SQUARES#30 ← phi( @48/(byte) NUM_SQUARES#35 )
+  (word*) SQUARES#42 ← phi( @48/(word*) SQUARES#45 )
+  (byte) NUM_SQUARES#32 ← phi( @48/(byte) NUM_SQUARES#37 )
   (byte*) heap_head#16 ← phi( @48/(byte*) heap_head#2 )
   (void*) malloc::return#7 ← phi( @48/(void*) malloc::return#3 )
   (void*~) $0 ← (void*) malloc::return#7
@@ -669,8 +680,8 @@ sid_rnd::@return: scope:[sid_rnd]  from sid_rnd
   (byte*) print_screen#10 ← phi( @54/(byte*) print_screen#11 )
   (byte*) print_char_cursor#35 ← phi( @54/(byte*) print_char_cursor#37 )
   (byte*) print_line_cursor#27 ← phi( @54/(byte*) print_line_cursor#30 )
-  (word*) SQUARES#36 ← phi( @54/(word*) SQUARES#41 )
-  (byte) NUM_SQUARES#25 ← phi( @54/(byte) NUM_SQUARES#30 )
+  (word*) SQUARES#37 ← phi( @54/(word*) SQUARES#42 )
+  (byte) NUM_SQUARES#27 ← phi( @54/(byte) NUM_SQUARES#32 )
   (byte*) SCREEN_DIST#12 ← phi( @54/(byte*) SCREEN_DIST#0 )
   (byte*) heap_head#17 ← phi( @54/(byte*) heap_head#2 )
   (void*) malloc::return#8 ← phi( @54/(void*) malloc::return#4 )
@@ -689,7 +700,7 @@ main: scope:[main]  from @53
   (byte*) SCREEN_ANGLE#3 ← phi( @53/(byte*) SCREEN_ANGLE#6 )
   (word*) SQUARES#21 ← phi( @53/(word*) SQUARES#25 )
   (byte*) heap_head#26 ← phi( @53/(byte*) heap_head#30 )
-  (byte) NUM_SQUARES#14 ← phi( @53/(byte) NUM_SQUARES#17 )
+  (byte) NUM_SQUARES#16 ← phi( @53/(byte) NUM_SQUARES#19 )
   (byte*) SCREEN_DIST#1 ← phi( @53/(byte*) SCREEN_DIST#3 )
   (byte*) init_dist_screen::screen#0 ← (byte*) SCREEN_DIST#1
   call init_dist_screen 
@@ -716,9 +727,9 @@ main::@10: scope:[main]  from main::@9
   (byte*) SCREEN_ANGLE#16 ← phi( main::@9/(byte*) SCREEN_ANGLE#1 )
   (byte) sin_offset_y#27 ← phi( main::@9/(byte) sin_offset_y#29 )
   (byte) sin_offset_x#27 ← phi( main::@9/(byte) sin_offset_x#29 )
-  (word*) SQUARES#42 ← phi( main::@9/(word*) SQUARES#3 )
-  (byte*) heap_head#41 ← phi( main::@9/(byte*) heap_head#7 )
-  (byte) NUM_SQUARES#31 ← phi( main::@9/(byte) NUM_SQUARES#1 )
+  (word*) SQUARES#43 ← phi( main::@9/(word*) SQUARES#3 )
+  (byte*) heap_head#42 ← phi( main::@9/(byte*) heap_head#7 )
+  (byte) NUM_SQUARES#33 ← phi( main::@9/(byte) NUM_SQUARES#1 )
   (byte*) print_screen#5 ← phi( main::@9/(byte*) print_screen#6 )
   (byte*) print_char_cursor#21 ← phi( main::@9/(byte*) print_char_cursor#26 )
   (byte*) print_line_cursor#14 ← phi( main::@9/(byte*) print_line_cursor#19 )
@@ -730,9 +741,9 @@ main::@11: scope:[main]  from main::@10
   (byte*) SCREEN_ANGLE#13 ← phi( main::@10/(byte*) SCREEN_ANGLE#16 )
   (byte) sin_offset_y#23 ← phi( main::@10/(byte) sin_offset_y#27 )
   (byte) sin_offset_x#23 ← phi( main::@10/(byte) sin_offset_x#27 )
-  (word*) SQUARES#34 ← phi( main::@10/(word*) SQUARES#42 )
-  (byte*) heap_head#37 ← phi( main::@10/(byte*) heap_head#41 )
-  (byte) NUM_SQUARES#23 ← phi( main::@10/(byte) NUM_SQUARES#31 )
+  (word*) SQUARES#35 ← phi( main::@10/(word*) SQUARES#43 )
+  (byte*) heap_head#38 ← phi( main::@10/(byte*) heap_head#42 )
+  (byte) NUM_SQUARES#25 ← phi( main::@10/(byte) NUM_SQUARES#33 )
   (byte*) print_char_cursor#14 ← phi( main::@10/(byte*) print_char_cursor#9 )
   (byte*) print_line_cursor#9 ← phi( main::@10/(byte*) print_line_cursor#6 )
   (byte*) print_line_cursor#3 ← (byte*) print_line_cursor#9
@@ -750,9 +761,9 @@ main::@12: scope:[main]  from main::@11
   (byte) sin_offset_x#19 ← phi( main::@11/(byte) sin_offset_x#23 )
   (byte*) print_char_cursor#27 ← phi( main::@11/(byte*) print_char_cursor#5 )
   (byte*) print_line_cursor#20 ← phi( main::@11/(byte*) print_line_cursor#3 )
-  (word*) SQUARES#26 ← phi( main::@11/(word*) SQUARES#34 )
-  (byte*) heap_head#32 ← phi( main::@11/(byte*) heap_head#37 )
-  (byte) NUM_SQUARES#18 ← phi( main::@11/(byte) NUM_SQUARES#23 )
+  (word*) SQUARES#27 ← phi( main::@11/(word*) SQUARES#35 )
+  (byte*) heap_head#33 ← phi( main::@11/(byte*) heap_head#38 )
+  (byte) NUM_SQUARES#20 ← phi( main::@11/(byte) NUM_SQUARES#25 )
   to:main::@1
 main::@1: scope:[main]  from main::@12 main::@8
   (byte*) SCREEN_DIST#6 ← phi( main::@12/(byte*) SCREEN_DIST#9 main::@8/(byte*) SCREEN_DIST#10 )
@@ -761,17 +772,17 @@ main::@1: scope:[main]  from main::@12 main::@8
   (byte) sin_offset_x#16 ← phi( main::@12/(byte) sin_offset_x#19 main::@8/(byte) sin_offset_x#20 )
   (byte*) print_char_cursor#22 ← phi( main::@12/(byte*) print_char_cursor#27 main::@8/(byte*) print_char_cursor#28 )
   (byte*) print_line_cursor#15 ← phi( main::@12/(byte*) print_line_cursor#20 main::@8/(byte*) print_line_cursor#21 )
-  (word*) SQUARES#22 ← phi( main::@12/(word*) SQUARES#26 main::@8/(word*) SQUARES#27 )
-  (byte*) heap_head#27 ← phi( main::@12/(byte*) heap_head#32 main::@8/(byte*) heap_head#33 )
-  (byte) NUM_SQUARES#15 ← phi( main::@12/(byte) NUM_SQUARES#18 main::@8/(byte) NUM_SQUARES#19 )
+  (word*) SQUARES#22 ← phi( main::@12/(word*) SQUARES#27 main::@8/(word*) SQUARES#28 )
+  (byte*) heap_head#27 ← phi( main::@12/(byte*) heap_head#33 main::@8/(byte*) heap_head#34 )
+  (byte) NUM_SQUARES#17 ← phi( main::@12/(byte) NUM_SQUARES#20 main::@8/(byte) NUM_SQUARES#21 )
   if(true) goto main::@2
   to:main::@return
 main::@2: scope:[main]  from main::@1
   (byte*) print_char_cursor#53 ← phi( main::@1/(byte*) print_char_cursor#22 )
   (byte*) print_line_cursor#48 ← phi( main::@1/(byte*) print_line_cursor#15 )
-  (word*) SQUARES#51 ← phi( main::@1/(word*) SQUARES#22 )
-  (byte*) heap_head#57 ← phi( main::@1/(byte*) heap_head#27 )
-  (byte) NUM_SQUARES#46 ← phi( main::@1/(byte) NUM_SQUARES#15 )
+  (word*) SQUARES#52 ← phi( main::@1/(word*) SQUARES#22 )
+  (byte*) heap_head#58 ← phi( main::@1/(byte*) heap_head#27 )
+  (byte) NUM_SQUARES#48 ← phi( main::@1/(byte) NUM_SQUARES#17 )
   (byte*) SCREEN_DIST#4 ← phi( main::@1/(byte*) SCREEN_DIST#6 )
   (byte*) SCREEN_ANGLE#4 ← phi( main::@1/(byte*) SCREEN_ANGLE#7 )
   (byte) sin_offset_y#14 ← phi( main::@1/(byte) sin_offset_y#16 )
@@ -782,9 +793,9 @@ main::@2: scope:[main]  from main::@1
 main::@13: scope:[main]  from main::@2
   (byte*) print_char_cursor#52 ← phi( main::@2/(byte*) print_char_cursor#53 )
   (byte*) print_line_cursor#46 ← phi( main::@2/(byte*) print_line_cursor#48 )
-  (word*) SQUARES#50 ← phi( main::@2/(word*) SQUARES#51 )
-  (byte*) heap_head#56 ← phi( main::@2/(byte*) heap_head#57 )
-  (byte) NUM_SQUARES#45 ← phi( main::@2/(byte) NUM_SQUARES#46 )
+  (word*) SQUARES#51 ← phi( main::@2/(word*) SQUARES#52 )
+  (byte*) heap_head#57 ← phi( main::@2/(byte*) heap_head#58 )
+  (byte) NUM_SQUARES#47 ← phi( main::@2/(byte) NUM_SQUARES#48 )
   (byte*) SCREEN_DIST#14 ← phi( main::@2/(byte*) SCREEN_DIST#4 )
   (byte*) SCREEN_ANGLE#14 ← phi( main::@2/(byte*) SCREEN_ANGLE#4 )
   (byte) sin_offset_y#7 ← phi( main::@2/(byte) sin_offset_y#5 )
@@ -797,9 +808,9 @@ main::@13: scope:[main]  from main::@2
 main::toD0181: scope:[main]  from main::@13
   (byte*) print_char_cursor#50 ← phi( main::@13/(byte*) print_char_cursor#52 )
   (byte*) print_line_cursor#43 ← phi( main::@13/(byte*) print_line_cursor#46 )
-  (word*) SQUARES#49 ← phi( main::@13/(word*) SQUARES#50 )
-  (byte*) heap_head#55 ← phi( main::@13/(byte*) heap_head#56 )
-  (byte) NUM_SQUARES#44 ← phi( main::@13/(byte) NUM_SQUARES#45 )
+  (word*) SQUARES#50 ← phi( main::@13/(word*) SQUARES#51 )
+  (byte*) heap_head#56 ← phi( main::@13/(byte*) heap_head#57 )
+  (byte) NUM_SQUARES#46 ← phi( main::@13/(byte) NUM_SQUARES#47 )
   (byte*) SCREEN_DIST#11 ← phi( main::@13/(byte*) SCREEN_DIST#14 )
   (byte*) SCREEN_ANGLE#11 ← phi( main::@13/(byte*) SCREEN_ANGLE#14 )
   (byte) sin_offset_y#24 ← phi( main::@13/(byte) sin_offset_y#0 )
@@ -820,9 +831,9 @@ main::toD0181: scope:[main]  from main::@13
 main::toD0181_@return: scope:[main]  from main::toD0181
   (byte*) print_char_cursor#47 ← phi( main::toD0181/(byte*) print_char_cursor#50 )
   (byte*) print_line_cursor#40 ← phi( main::toD0181/(byte*) print_line_cursor#43 )
-  (word*) SQUARES#48 ← phi( main::toD0181/(word*) SQUARES#49 )
-  (byte*) heap_head#53 ← phi( main::toD0181/(byte*) heap_head#55 )
-  (byte) NUM_SQUARES#42 ← phi( main::toD0181/(byte) NUM_SQUARES#44 )
+  (word*) SQUARES#49 ← phi( main::toD0181/(word*) SQUARES#50 )
+  (byte*) heap_head#54 ← phi( main::toD0181/(byte*) heap_head#56 )
+  (byte) NUM_SQUARES#44 ← phi( main::toD0181/(byte) NUM_SQUARES#46 )
   (byte*) SCREEN_DIST#7 ← phi( main::toD0181/(byte*) SCREEN_DIST#11 )
   (byte*) SCREEN_ANGLE#8 ← phi( main::toD0181/(byte*) SCREEN_ANGLE#11 )
   (byte) sin_offset_y#21 ← phi( main::toD0181/(byte) sin_offset_y#24 )
@@ -833,9 +844,9 @@ main::toD0181_@return: scope:[main]  from main::toD0181
 main::@7: scope:[main]  from main::toD0181_@return
   (byte*) print_char_cursor#44 ← phi( main::toD0181_@return/(byte*) print_char_cursor#47 )
   (byte*) print_line_cursor#38 ← phi( main::toD0181_@return/(byte*) print_line_cursor#40 )
-  (word*) SQUARES#47 ← phi( main::toD0181_@return/(word*) SQUARES#48 )
-  (byte*) heap_head#49 ← phi( main::toD0181_@return/(byte*) heap_head#53 )
-  (byte) NUM_SQUARES#40 ← phi( main::toD0181_@return/(byte) NUM_SQUARES#42 )
+  (word*) SQUARES#48 ← phi( main::toD0181_@return/(word*) SQUARES#49 )
+  (byte*) heap_head#50 ← phi( main::toD0181_@return/(byte*) heap_head#54 )
+  (byte) NUM_SQUARES#42 ← phi( main::toD0181_@return/(byte) NUM_SQUARES#44 )
   (byte*) SCREEN_DIST#5 ← phi( main::toD0181_@return/(byte*) SCREEN_DIST#7 )
   (byte*) SCREEN_ANGLE#5 ← phi( main::toD0181_@return/(byte*) SCREEN_ANGLE#8 )
   (byte) sin_offset_y#15 ← phi( main::toD0181_@return/(byte) sin_offset_y#21 )
@@ -851,9 +862,9 @@ main::@14: scope:[main]  from main::@7
   (byte*) SCREEN_ANGLE#18 ← phi( main::@7/(byte*) SCREEN_ANGLE#5 )
   (byte*) print_char_cursor#42 ← phi( main::@7/(byte*) print_char_cursor#44 )
   (byte*) print_line_cursor#35 ← phi( main::@7/(byte*) print_line_cursor#38 )
-  (word*) SQUARES#45 ← phi( main::@7/(word*) SQUARES#47 )
-  (byte*) heap_head#45 ← phi( main::@7/(byte*) heap_head#49 )
-  (byte) NUM_SQUARES#36 ← phi( main::@7/(byte) NUM_SQUARES#40 )
+  (word*) SQUARES#46 ← phi( main::@7/(word*) SQUARES#48 )
+  (byte*) heap_head#46 ← phi( main::@7/(byte*) heap_head#50 )
+  (byte) NUM_SQUARES#38 ← phi( main::@7/(byte) NUM_SQUARES#42 )
   (byte) sin_offset_y#8 ← phi( main::@7/(byte) sin_offset_y#5 )
   (byte) sin_offset_x#8 ← phi( main::@7/(byte) sin_offset_x#5 )
   (byte) sin_offset_x#1 ← (byte) sin_offset_x#8
@@ -868,9 +879,9 @@ main::toD0182: scope:[main]  from main::@14
   (byte) sin_offset_x#28 ← phi( main::@14/(byte) sin_offset_x#1 )
   (byte*) print_char_cursor#38 ← phi( main::@14/(byte*) print_char_cursor#42 )
   (byte*) print_line_cursor#31 ← phi( main::@14/(byte*) print_line_cursor#35 )
-  (word*) SQUARES#43 ← phi( main::@14/(word*) SQUARES#45 )
-  (byte*) heap_head#42 ← phi( main::@14/(byte*) heap_head#45 )
-  (byte) NUM_SQUARES#32 ← phi( main::@14/(byte) NUM_SQUARES#36 )
+  (word*) SQUARES#44 ← phi( main::@14/(word*) SQUARES#46 )
+  (byte*) heap_head#43 ← phi( main::@14/(byte*) heap_head#46 )
+  (byte) NUM_SQUARES#34 ← phi( main::@14/(byte) NUM_SQUARES#38 )
   (byte*) main::toD0182_gfx#1 ← phi( main::@14/(byte*) main::toD0182_gfx#0 )
   (byte*) main::toD0182_screen#1 ← phi( main::@14/(byte*) main::toD0182_screen#0 )
   (word~) main::toD0182_$0 ← ((word)) (byte*) main::toD0182_screen#1
@@ -891,9 +902,9 @@ main::toD0182_@return: scope:[main]  from main::toD0182
   (byte) sin_offset_x#25 ← phi( main::toD0182/(byte) sin_offset_x#28 )
   (byte*) print_char_cursor#34 ← phi( main::toD0182/(byte*) print_char_cursor#38 )
   (byte*) print_line_cursor#26 ← phi( main::toD0182/(byte*) print_line_cursor#31 )
-  (word*) SQUARES#35 ← phi( main::toD0182/(word*) SQUARES#43 )
-  (byte*) heap_head#38 ← phi( main::toD0182/(byte*) heap_head#42 )
-  (byte) NUM_SQUARES#24 ← phi( main::toD0182/(byte) NUM_SQUARES#32 )
+  (word*) SQUARES#36 ← phi( main::toD0182/(word*) SQUARES#44 )
+  (byte*) heap_head#39 ← phi( main::toD0182/(byte*) heap_head#43 )
+  (byte) NUM_SQUARES#26 ← phi( main::toD0182/(byte) NUM_SQUARES#34 )
   (byte) main::toD0182_return#2 ← phi( main::toD0182/(byte) main::toD0182_return#0 )
   (byte) main::toD0182_return#1 ← (byte) main::toD0182_return#2
   to:main::@8
@@ -904,9 +915,9 @@ main::@8: scope:[main]  from main::toD0182_@return
   (byte) sin_offset_x#20 ← phi( main::toD0182_@return/(byte) sin_offset_x#25 )
   (byte*) print_char_cursor#28 ← phi( main::toD0182_@return/(byte*) print_char_cursor#34 )
   (byte*) print_line_cursor#21 ← phi( main::toD0182_@return/(byte*) print_line_cursor#26 )
-  (word*) SQUARES#27 ← phi( main::toD0182_@return/(word*) SQUARES#35 )
-  (byte*) heap_head#33 ← phi( main::toD0182_@return/(byte*) heap_head#38 )
-  (byte) NUM_SQUARES#19 ← phi( main::toD0182_@return/(byte) NUM_SQUARES#24 )
+  (word*) SQUARES#28 ← phi( main::toD0182_@return/(word*) SQUARES#36 )
+  (byte*) heap_head#34 ← phi( main::toD0182_@return/(byte*) heap_head#39 )
+  (byte) NUM_SQUARES#21 ← phi( main::toD0182_@return/(byte) NUM_SQUARES#26 )
   (byte) main::toD0182_return#3 ← phi( main::toD0182_@return/(byte) main::toD0182_return#1 )
   (byte~) main::$7 ← (byte) main::toD0182_return#3
   *((const byte*) D018) ← (byte~) main::$7
@@ -918,7 +929,7 @@ main::@return: scope:[main]  from main::@1
   (byte*) print_line_cursor#10 ← phi( main::@1/(byte*) print_line_cursor#15 )
   (word*) SQUARES#13 ← phi( main::@1/(word*) SQUARES#22 )
   (byte*) heap_head#19 ← phi( main::@1/(byte*) heap_head#27 )
-  (byte) NUM_SQUARES#10 ← phi( main::@1/(byte) NUM_SQUARES#15 )
+  (byte) NUM_SQUARES#10 ← phi( main::@1/(byte) NUM_SQUARES#17 )
   (byte) NUM_SQUARES#2 ← (byte) NUM_SQUARES#10
   (byte*) heap_head#8 ← (byte*) heap_head#19
   (word*) SQUARES#4 ← (word*) SQUARES#13
@@ -933,9 +944,9 @@ main::@return: scope:[main]  from main::@1
   (byte*) SCREEN_ANGLE#12 ← phi( @55/(byte*) SCREEN_ANGLE#0 )
   (byte*) print_char_cursor#32 ← phi( @55/(byte*) print_char_cursor#35 )
   (byte*) print_line_cursor#24 ← phi( @55/(byte*) print_line_cursor#27 )
-  (word*) SQUARES#33 ← phi( @55/(word*) SQUARES#36 )
-  (byte*) heap_head#35 ← phi( @55/(byte*) heap_head#6 )
-  (byte) NUM_SQUARES#22 ← phi( @55/(byte) NUM_SQUARES#25 )
+  (word*) SQUARES#34 ← phi( @55/(word*) SQUARES#37 )
+  (byte*) heap_head#36 ← phi( @55/(byte*) heap_head#6 )
+  (byte) NUM_SQUARES#24 ← phi( @55/(byte) NUM_SQUARES#27 )
   (byte*) SCREEN_DIST#8 ← phi( @55/(byte*) SCREEN_DIST#12 )
   (byte) sin_offset_x#3 ← (byte) 0
   (byte) sin_offset_y#3 ← (byte) 0
@@ -1103,7 +1114,7 @@ init_dist_screen: scope:[init_dist_screen]  from main
   call init_squares 
   to:init_dist_screen::@19
 init_dist_screen::@19: scope:[init_dist_screen]  from init_dist_screen
-  (byte) NUM_SQUARES#43 ← phi( init_dist_screen/(byte) NUM_SQUARES#3 )
+  (byte) NUM_SQUARES#45 ← phi( init_dist_screen/(byte) NUM_SQUARES#3 )
   (byte*) init_dist_screen::screen#1 ← phi( init_dist_screen/(byte*) init_dist_screen::screen#2 )
   (word*) SQUARES#14 ← phi( init_dist_screen/(word*) SQUARES#2 )
   (byte*) heap_head#20 ← phi( init_dist_screen/(byte*) heap_head#4 )
@@ -1115,11 +1126,11 @@ init_dist_screen::@19: scope:[init_dist_screen]  from init_dist_screen
   (byte) init_dist_screen::y#0 ← (byte) 0
   to:init_dist_screen::@1
 init_dist_screen::@1: scope:[init_dist_screen]  from init_dist_screen::@19 init_dist_screen::@7
-  (byte*) heap_head#50 ← phi( init_dist_screen::@19/(byte*) heap_head#9 init_dist_screen::@7/(byte*) heap_head#29 )
-  (byte) NUM_SQUARES#41 ← phi( init_dist_screen::@19/(byte) NUM_SQUARES#43 init_dist_screen::@7/(byte) NUM_SQUARES#16 )
+  (byte*) heap_head#51 ← phi( init_dist_screen::@19/(byte*) heap_head#9 init_dist_screen::@7/(byte*) heap_head#29 )
+  (byte) NUM_SQUARES#43 ← phi( init_dist_screen::@19/(byte) NUM_SQUARES#45 init_dist_screen::@7/(byte) NUM_SQUARES#18 )
   (byte*) init_dist_screen::screen_bottomline#14 ← phi( init_dist_screen::@19/(byte*) init_dist_screen::screen_bottomline#0 init_dist_screen::@7/(byte*) init_dist_screen::screen_bottomline#1 )
   (byte*) init_dist_screen::screen_topline#14 ← phi( init_dist_screen::@19/(byte*) init_dist_screen::screen_topline#0 init_dist_screen::@7/(byte*) init_dist_screen::screen_topline#1 )
-  (word*) SQUARES#37 ← phi( init_dist_screen::@19/(word*) SQUARES#5 init_dist_screen::@7/(word*) SQUARES#24 )
+  (word*) SQUARES#38 ← phi( init_dist_screen::@19/(word*) SQUARES#5 init_dist_screen::@7/(word*) SQUARES#24 )
   (byte) init_dist_screen::y#2 ← phi( init_dist_screen::@19/(byte) init_dist_screen::y#0 init_dist_screen::@7/(byte) init_dist_screen::y#1 )
   (number~) init_dist_screen::$2 ← (byte) init_dist_screen::y#2 * (number) 2
   (byte) init_dist_screen::y2#0 ← (number~) init_dist_screen::$2
@@ -1127,34 +1138,34 @@ init_dist_screen::@1: scope:[init_dist_screen]  from init_dist_screen::@19 init_
   if((bool~) init_dist_screen::$3) goto init_dist_screen::@2
   to:init_dist_screen::@3
 init_dist_screen::@2: scope:[init_dist_screen]  from init_dist_screen::@1
-  (byte*) heap_head#46 ← phi( init_dist_screen::@1/(byte*) heap_head#50 )
-  (byte) NUM_SQUARES#37 ← phi( init_dist_screen::@1/(byte) NUM_SQUARES#41 )
+  (byte*) heap_head#47 ← phi( init_dist_screen::@1/(byte*) heap_head#51 )
+  (byte) NUM_SQUARES#39 ← phi( init_dist_screen::@1/(byte) NUM_SQUARES#43 )
   (byte) init_dist_screen::y#9 ← phi( init_dist_screen::@1/(byte) init_dist_screen::y#2 )
   (byte*) init_dist_screen::screen_bottomline#11 ← phi( init_dist_screen::@1/(byte*) init_dist_screen::screen_bottomline#14 )
   (byte*) init_dist_screen::screen_topline#11 ← phi( init_dist_screen::@1/(byte*) init_dist_screen::screen_topline#14 )
-  (word*) SQUARES#28 ← phi( init_dist_screen::@1/(word*) SQUARES#37 )
+  (word*) SQUARES#29 ← phi( init_dist_screen::@1/(word*) SQUARES#38 )
   (byte) init_dist_screen::y2#1 ← phi( init_dist_screen::@1/(byte) init_dist_screen::y2#0 )
   (number~) init_dist_screen::$6 ← (byte) init_dist_screen::y2#1 - (number) $18
   (number~) init_dist_screen::$7 ← (number~) init_dist_screen::$6
   to:init_dist_screen::@4
 init_dist_screen::@3: scope:[init_dist_screen]  from init_dist_screen::@1
-  (byte*) heap_head#47 ← phi( init_dist_screen::@1/(byte*) heap_head#50 )
-  (byte) NUM_SQUARES#38 ← phi( init_dist_screen::@1/(byte) NUM_SQUARES#41 )
+  (byte*) heap_head#48 ← phi( init_dist_screen::@1/(byte*) heap_head#51 )
+  (byte) NUM_SQUARES#40 ← phi( init_dist_screen::@1/(byte) NUM_SQUARES#43 )
   (byte) init_dist_screen::y#10 ← phi( init_dist_screen::@1/(byte) init_dist_screen::y#2 )
   (byte*) init_dist_screen::screen_bottomline#12 ← phi( init_dist_screen::@1/(byte*) init_dist_screen::screen_bottomline#14 )
   (byte*) init_dist_screen::screen_topline#12 ← phi( init_dist_screen::@1/(byte*) init_dist_screen::screen_topline#14 )
-  (word*) SQUARES#29 ← phi( init_dist_screen::@1/(word*) SQUARES#37 )
+  (word*) SQUARES#30 ← phi( init_dist_screen::@1/(word*) SQUARES#38 )
   (byte) init_dist_screen::y2#2 ← phi( init_dist_screen::@1/(byte) init_dist_screen::y2#0 )
   (number~) init_dist_screen::$4 ← (number) $18 - (byte) init_dist_screen::y2#2
   (number~) init_dist_screen::$5 ← (number~) init_dist_screen::$4
   to:init_dist_screen::@4
 init_dist_screen::@4: scope:[init_dist_screen]  from init_dist_screen::@2 init_dist_screen::@3
-  (byte*) heap_head#43 ← phi( init_dist_screen::@2/(byte*) heap_head#46 init_dist_screen::@3/(byte*) heap_head#47 )
-  (byte) NUM_SQUARES#33 ← phi( init_dist_screen::@2/(byte) NUM_SQUARES#37 init_dist_screen::@3/(byte) NUM_SQUARES#38 )
+  (byte*) heap_head#44 ← phi( init_dist_screen::@2/(byte*) heap_head#47 init_dist_screen::@3/(byte*) heap_head#48 )
+  (byte) NUM_SQUARES#35 ← phi( init_dist_screen::@2/(byte) NUM_SQUARES#39 init_dist_screen::@3/(byte) NUM_SQUARES#40 )
   (byte) init_dist_screen::y#7 ← phi( init_dist_screen::@2/(byte) init_dist_screen::y#9 init_dist_screen::@3/(byte) init_dist_screen::y#10 )
   (byte*) init_dist_screen::screen_bottomline#8 ← phi( init_dist_screen::@2/(byte*) init_dist_screen::screen_bottomline#11 init_dist_screen::@3/(byte*) init_dist_screen::screen_bottomline#12 )
   (byte*) init_dist_screen::screen_topline#8 ← phi( init_dist_screen::@2/(byte*) init_dist_screen::screen_topline#11 init_dist_screen::@3/(byte*) init_dist_screen::screen_topline#12 )
-  (word*) SQUARES#19 ← phi( init_dist_screen::@2/(word*) SQUARES#28 init_dist_screen::@3/(word*) SQUARES#29 )
+  (word*) SQUARES#19 ← phi( init_dist_screen::@2/(word*) SQUARES#29 init_dist_screen::@3/(word*) SQUARES#30 )
   (number~) init_dist_screen::$8 ← phi( init_dist_screen::@2/(number~) init_dist_screen::$7 init_dist_screen::@3/(number~) init_dist_screen::$5 )
   (byte) init_dist_screen::yd#0 ← (number~) init_dist_screen::$8
   (byte) sqr::val#0 ← (byte) init_dist_screen::yd#0
@@ -1162,9 +1173,9 @@ init_dist_screen::@4: scope:[init_dist_screen]  from init_dist_screen::@2 init_d
   (word) sqr::return#2 ← (word) sqr::return#1
   to:init_dist_screen::@20
 init_dist_screen::@20: scope:[init_dist_screen]  from init_dist_screen::@4
-  (word*) SQUARES#38 ← phi( init_dist_screen::@4/(word*) SQUARES#19 )
-  (byte*) heap_head#39 ← phi( init_dist_screen::@4/(byte*) heap_head#43 )
-  (byte) NUM_SQUARES#26 ← phi( init_dist_screen::@4/(byte) NUM_SQUARES#33 )
+  (word*) SQUARES#39 ← phi( init_dist_screen::@4/(word*) SQUARES#19 )
+  (byte*) heap_head#40 ← phi( init_dist_screen::@4/(byte*) heap_head#44 )
+  (byte) NUM_SQUARES#28 ← phi( init_dist_screen::@4/(byte) NUM_SQUARES#35 )
   (byte) init_dist_screen::y#5 ← phi( init_dist_screen::@4/(byte) init_dist_screen::y#7 )
   (byte*) init_dist_screen::screen_bottomline#6 ← phi( init_dist_screen::@4/(byte*) init_dist_screen::screen_bottomline#8 )
   (byte*) init_dist_screen::screen_topline#6 ← phi( init_dist_screen::@4/(byte*) init_dist_screen::screen_topline#8 )
@@ -1177,9 +1188,9 @@ init_dist_screen::@20: scope:[init_dist_screen]  from init_dist_screen::@4
 init_dist_screen::@5: scope:[init_dist_screen]  from init_dist_screen::@20 init_dist_screen::@22
   (byte) init_dist_screen::xb#8 ← phi( init_dist_screen::@20/(byte) init_dist_screen::xb#0 init_dist_screen::@22/(byte) init_dist_screen::xb#1 )
   (word) init_dist_screen::yds#6 ← phi( init_dist_screen::@20/(word) init_dist_screen::yds#0 init_dist_screen::@22/(word) init_dist_screen::yds#7 )
-  (word*) SQUARES#30 ← phi( init_dist_screen::@20/(word*) SQUARES#38 init_dist_screen::@22/(word*) SQUARES#39 )
-  (byte*) heap_head#34 ← phi( init_dist_screen::@20/(byte*) heap_head#39 init_dist_screen::@22/(byte*) heap_head#40 )
-  (byte) NUM_SQUARES#20 ← phi( init_dist_screen::@20/(byte) NUM_SQUARES#26 init_dist_screen::@22/(byte) NUM_SQUARES#27 )
+  (word*) SQUARES#31 ← phi( init_dist_screen::@20/(word*) SQUARES#39 init_dist_screen::@22/(word*) SQUARES#40 )
+  (byte*) heap_head#35 ← phi( init_dist_screen::@20/(byte*) heap_head#40 init_dist_screen::@22/(byte*) heap_head#41 )
+  (byte) NUM_SQUARES#22 ← phi( init_dist_screen::@20/(byte) NUM_SQUARES#28 init_dist_screen::@22/(byte) NUM_SQUARES#29 )
   (byte) init_dist_screen::y#4 ← phi( init_dist_screen::@20/(byte) init_dist_screen::y#5 init_dist_screen::@22/(byte) init_dist_screen::y#6 )
   (byte*) init_dist_screen::screen_bottomline#4 ← phi( init_dist_screen::@20/(byte*) init_dist_screen::screen_bottomline#6 init_dist_screen::@22/(byte*) init_dist_screen::screen_bottomline#3 )
   (byte*) init_dist_screen::screen_topline#4 ← phi( init_dist_screen::@20/(byte*) init_dist_screen::screen_topline#6 init_dist_screen::@22/(byte*) init_dist_screen::screen_topline#3 )
@@ -1188,14 +1199,14 @@ init_dist_screen::@5: scope:[init_dist_screen]  from init_dist_screen::@20 init_
   if((bool~) init_dist_screen::$10) goto init_dist_screen::@6
   to:init_dist_screen::@7
 init_dist_screen::@6: scope:[init_dist_screen]  from init_dist_screen::@5
-  (byte*) heap_head#54 ← phi( init_dist_screen::@5/(byte*) heap_head#34 )
+  (byte*) heap_head#55 ← phi( init_dist_screen::@5/(byte*) heap_head#35 )
   (byte) init_dist_screen::y#14 ← phi( init_dist_screen::@5/(byte) init_dist_screen::y#4 )
   (byte) init_dist_screen::xb#7 ← phi( init_dist_screen::@5/(byte) init_dist_screen::xb#8 )
   (byte*) init_dist_screen::screen_bottomline#13 ← phi( init_dist_screen::@5/(byte*) init_dist_screen::screen_bottomline#4 )
   (byte*) init_dist_screen::screen_topline#13 ← phi( init_dist_screen::@5/(byte*) init_dist_screen::screen_topline#4 )
-  (byte) NUM_SQUARES#34 ← phi( init_dist_screen::@5/(byte) NUM_SQUARES#20 )
+  (byte) NUM_SQUARES#36 ← phi( init_dist_screen::@5/(byte) NUM_SQUARES#22 )
   (word) init_dist_screen::yds#5 ← phi( init_dist_screen::@5/(word) init_dist_screen::yds#6 )
-  (word*) SQUARES#40 ← phi( init_dist_screen::@5/(word*) SQUARES#30 )
+  (word*) SQUARES#41 ← phi( init_dist_screen::@5/(word*) SQUARES#31 )
   (byte) init_dist_screen::x#3 ← phi( init_dist_screen::@5/(byte) init_dist_screen::x#2 )
   (number~) init_dist_screen::$11 ← (byte) init_dist_screen::x#3 * (number) 2
   (byte) init_dist_screen::x2#0 ← (number~) init_dist_screen::$11
@@ -1203,9 +1214,9 @@ init_dist_screen::@6: scope:[init_dist_screen]  from init_dist_screen::@5
   if((bool~) init_dist_screen::$12) goto init_dist_screen::@8
   to:init_dist_screen::@9
 init_dist_screen::@7: scope:[init_dist_screen]  from init_dist_screen::@5
-  (word*) SQUARES#24 ← phi( init_dist_screen::@5/(word*) SQUARES#30 )
-  (byte*) heap_head#29 ← phi( init_dist_screen::@5/(byte*) heap_head#34 )
-  (byte) NUM_SQUARES#16 ← phi( init_dist_screen::@5/(byte) NUM_SQUARES#20 )
+  (word*) SQUARES#24 ← phi( init_dist_screen::@5/(word*) SQUARES#31 )
+  (byte*) heap_head#29 ← phi( init_dist_screen::@5/(byte*) heap_head#35 )
+  (byte) NUM_SQUARES#18 ← phi( init_dist_screen::@5/(byte) NUM_SQUARES#22 )
   (byte) init_dist_screen::y#3 ← phi( init_dist_screen::@5/(byte) init_dist_screen::y#4 )
   (byte*) init_dist_screen::screen_bottomline#2 ← phi( init_dist_screen::@5/(byte*) init_dist_screen::screen_bottomline#4 )
   (byte*) init_dist_screen::screen_topline#2 ← phi( init_dist_screen::@5/(byte*) init_dist_screen::screen_topline#4 )
@@ -1216,43 +1227,43 @@ init_dist_screen::@7: scope:[init_dist_screen]  from init_dist_screen::@5
   if((bool~) init_dist_screen::$21) goto init_dist_screen::@1
   to:init_dist_screen::@return
 init_dist_screen::@8: scope:[init_dist_screen]  from init_dist_screen::@6
-  (byte*) heap_head#51 ← phi( init_dist_screen::@6/(byte*) heap_head#54 )
+  (byte*) heap_head#52 ← phi( init_dist_screen::@6/(byte*) heap_head#55 )
   (byte) init_dist_screen::y#12 ← phi( init_dist_screen::@6/(byte) init_dist_screen::y#14 )
   (byte) init_dist_screen::xb#5 ← phi( init_dist_screen::@6/(byte) init_dist_screen::xb#7 )
   (byte*) init_dist_screen::screen_bottomline#9 ← phi( init_dist_screen::@6/(byte*) init_dist_screen::screen_bottomline#13 )
   (byte) init_dist_screen::x#7 ← phi( init_dist_screen::@6/(byte) init_dist_screen::x#3 )
   (byte*) init_dist_screen::screen_topline#9 ← phi( init_dist_screen::@6/(byte*) init_dist_screen::screen_topline#13 )
-  (byte) NUM_SQUARES#28 ← phi( init_dist_screen::@6/(byte) NUM_SQUARES#34 )
+  (byte) NUM_SQUARES#30 ← phi( init_dist_screen::@6/(byte) NUM_SQUARES#36 )
   (word) init_dist_screen::yds#3 ← phi( init_dist_screen::@6/(word) init_dist_screen::yds#5 )
-  (word*) SQUARES#31 ← phi( init_dist_screen::@6/(word*) SQUARES#40 )
+  (word*) SQUARES#32 ← phi( init_dist_screen::@6/(word*) SQUARES#41 )
   (byte) init_dist_screen::x2#1 ← phi( init_dist_screen::@6/(byte) init_dist_screen::x2#0 )
   (number~) init_dist_screen::$15 ← (byte) init_dist_screen::x2#1 - (number) $27
   (number~) init_dist_screen::$16 ← (number~) init_dist_screen::$15
   to:init_dist_screen::@10
 init_dist_screen::@9: scope:[init_dist_screen]  from init_dist_screen::@6
-  (byte*) heap_head#52 ← phi( init_dist_screen::@6/(byte*) heap_head#54 )
+  (byte*) heap_head#53 ← phi( init_dist_screen::@6/(byte*) heap_head#55 )
   (byte) init_dist_screen::y#13 ← phi( init_dist_screen::@6/(byte) init_dist_screen::y#14 )
   (byte) init_dist_screen::xb#6 ← phi( init_dist_screen::@6/(byte) init_dist_screen::xb#7 )
   (byte*) init_dist_screen::screen_bottomline#10 ← phi( init_dist_screen::@6/(byte*) init_dist_screen::screen_bottomline#13 )
   (byte) init_dist_screen::x#8 ← phi( init_dist_screen::@6/(byte) init_dist_screen::x#3 )
   (byte*) init_dist_screen::screen_topline#10 ← phi( init_dist_screen::@6/(byte*) init_dist_screen::screen_topline#13 )
-  (byte) NUM_SQUARES#29 ← phi( init_dist_screen::@6/(byte) NUM_SQUARES#34 )
+  (byte) NUM_SQUARES#31 ← phi( init_dist_screen::@6/(byte) NUM_SQUARES#36 )
   (word) init_dist_screen::yds#4 ← phi( init_dist_screen::@6/(word) init_dist_screen::yds#5 )
-  (word*) SQUARES#32 ← phi( init_dist_screen::@6/(word*) SQUARES#40 )
+  (word*) SQUARES#33 ← phi( init_dist_screen::@6/(word*) SQUARES#41 )
   (byte) init_dist_screen::x2#2 ← phi( init_dist_screen::@6/(byte) init_dist_screen::x2#0 )
   (number~) init_dist_screen::$13 ← (number) $27 - (byte) init_dist_screen::x2#2
   (number~) init_dist_screen::$14 ← (number~) init_dist_screen::$13
   to:init_dist_screen::@10
 init_dist_screen::@10: scope:[init_dist_screen]  from init_dist_screen::@8 init_dist_screen::@9
-  (byte*) heap_head#48 ← phi( init_dist_screen::@8/(byte*) heap_head#51 init_dist_screen::@9/(byte*) heap_head#52 )
+  (byte*) heap_head#49 ← phi( init_dist_screen::@8/(byte*) heap_head#52 init_dist_screen::@9/(byte*) heap_head#53 )
   (byte) init_dist_screen::y#11 ← phi( init_dist_screen::@8/(byte) init_dist_screen::y#12 init_dist_screen::@9/(byte) init_dist_screen::y#13 )
   (byte) init_dist_screen::xb#4 ← phi( init_dist_screen::@8/(byte) init_dist_screen::xb#5 init_dist_screen::@9/(byte) init_dist_screen::xb#6 )
   (byte*) init_dist_screen::screen_bottomline#7 ← phi( init_dist_screen::@8/(byte*) init_dist_screen::screen_bottomline#9 init_dist_screen::@9/(byte*) init_dist_screen::screen_bottomline#10 )
   (byte) init_dist_screen::x#6 ← phi( init_dist_screen::@8/(byte) init_dist_screen::x#7 init_dist_screen::@9/(byte) init_dist_screen::x#8 )
   (byte*) init_dist_screen::screen_topline#7 ← phi( init_dist_screen::@8/(byte*) init_dist_screen::screen_topline#9 init_dist_screen::@9/(byte*) init_dist_screen::screen_topline#10 )
-  (byte) NUM_SQUARES#21 ← phi( init_dist_screen::@8/(byte) NUM_SQUARES#28 init_dist_screen::@9/(byte) NUM_SQUARES#29 )
+  (byte) NUM_SQUARES#23 ← phi( init_dist_screen::@8/(byte) NUM_SQUARES#30 init_dist_screen::@9/(byte) NUM_SQUARES#31 )
   (word) init_dist_screen::yds#2 ← phi( init_dist_screen::@8/(word) init_dist_screen::yds#3 init_dist_screen::@9/(word) init_dist_screen::yds#4 )
-  (word*) SQUARES#18 ← phi( init_dist_screen::@8/(word*) SQUARES#31 init_dist_screen::@9/(word*) SQUARES#32 )
+  (word*) SQUARES#18 ← phi( init_dist_screen::@8/(word*) SQUARES#32 init_dist_screen::@9/(word*) SQUARES#33 )
   (number~) init_dist_screen::$17 ← phi( init_dist_screen::@8/(number~) init_dist_screen::$16 init_dist_screen::@9/(number~) init_dist_screen::$14 )
   (byte) init_dist_screen::xd#0 ← (number~) init_dist_screen::$17
   (byte) sqr::val#1 ← (byte) init_dist_screen::xd#0
@@ -1260,13 +1271,13 @@ init_dist_screen::@10: scope:[init_dist_screen]  from init_dist_screen::@8 init_
   (word) sqr::return#3 ← (word) sqr::return#1
   to:init_dist_screen::@21
 init_dist_screen::@21: scope:[init_dist_screen]  from init_dist_screen::@10
-  (byte*) heap_head#44 ← phi( init_dist_screen::@10/(byte*) heap_head#48 )
+  (byte*) heap_head#45 ← phi( init_dist_screen::@10/(byte*) heap_head#49 )
   (byte) init_dist_screen::y#8 ← phi( init_dist_screen::@10/(byte) init_dist_screen::y#11 )
   (byte) init_dist_screen::xb#3 ← phi( init_dist_screen::@10/(byte) init_dist_screen::xb#4 )
   (byte*) init_dist_screen::screen_bottomline#5 ← phi( init_dist_screen::@10/(byte*) init_dist_screen::screen_bottomline#7 )
   (byte) init_dist_screen::x#5 ← phi( init_dist_screen::@10/(byte) init_dist_screen::x#6 )
   (byte*) init_dist_screen::screen_topline#5 ← phi( init_dist_screen::@10/(byte*) init_dist_screen::screen_topline#7 )
-  (byte) NUM_SQUARES#13 ← phi( init_dist_screen::@10/(byte) NUM_SQUARES#21 )
+  (byte) NUM_SQUARES#15 ← phi( init_dist_screen::@10/(byte) NUM_SQUARES#23 )
   (word*) SQUARES#20 ← phi( init_dist_screen::@10/(word*) SQUARES#18 )
   (word) init_dist_screen::yds#1 ← phi( init_dist_screen::@10/(word) init_dist_screen::yds#2 )
   (word) sqr::return#6 ← phi( init_dist_screen::@10/(word) sqr::return#3 )
@@ -1280,9 +1291,9 @@ init_dist_screen::@21: scope:[init_dist_screen]  from init_dist_screen::@10
   to:init_dist_screen::@22
 init_dist_screen::@22: scope:[init_dist_screen]  from init_dist_screen::@21
   (word) init_dist_screen::yds#7 ← phi( init_dist_screen::@21/(word) init_dist_screen::yds#1 )
-  (word*) SQUARES#39 ← phi( init_dist_screen::@21/(word*) SQUARES#20 )
-  (byte*) heap_head#40 ← phi( init_dist_screen::@21/(byte*) heap_head#44 )
-  (byte) NUM_SQUARES#27 ← phi( init_dist_screen::@21/(byte) NUM_SQUARES#13 )
+  (word*) SQUARES#40 ← phi( init_dist_screen::@21/(word*) SQUARES#20 )
+  (byte*) heap_head#41 ← phi( init_dist_screen::@21/(byte*) heap_head#45 )
+  (byte) NUM_SQUARES#29 ← phi( init_dist_screen::@21/(byte) NUM_SQUARES#15 )
   (byte) init_dist_screen::y#6 ← phi( init_dist_screen::@21/(byte) init_dist_screen::y#8 )
   (byte) init_dist_screen::xb#2 ← phi( init_dist_screen::@21/(byte) init_dist_screen::xb#3 )
   (byte*) init_dist_screen::screen_bottomline#3 ← phi( init_dist_screen::@21/(byte*) init_dist_screen::screen_bottomline#5 )
@@ -1301,7 +1312,7 @@ init_dist_screen::@22: scope:[init_dist_screen]  from init_dist_screen::@21
 init_dist_screen::@return: scope:[init_dist_screen]  from init_dist_screen::@7
   (word*) SQUARES#15 ← phi( init_dist_screen::@7/(word*) SQUARES#24 )
   (byte*) heap_head#21 ← phi( init_dist_screen::@7/(byte*) heap_head#29 )
-  (byte) NUM_SQUARES#11 ← phi( init_dist_screen::@7/(byte) NUM_SQUARES#16 )
+  (byte) NUM_SQUARES#11 ← phi( init_dist_screen::@7/(byte) NUM_SQUARES#18 )
   (byte) NUM_SQUARES#4 ← (byte) NUM_SQUARES#11
   (byte*) heap_head#10 ← (byte*) heap_head#21
   (word*) SQUARES#6 ← (word*) SQUARES#15
@@ -1489,9 +1500,9 @@ make_plasma_charset::@return: scope:[make_plasma_charset]  from make_plasma_char
   (byte) sin_offset_x#18 ← phi( @49/(byte) sin_offset_x#3 )
   (byte*) print_char_cursor#25 ← phi( @49/(byte*) print_char_cursor#32 )
   (byte*) print_line_cursor#18 ← phi( @49/(byte*) print_line_cursor#24 )
-  (word*) SQUARES#25 ← phi( @49/(word*) SQUARES#33 )
-  (byte*) heap_head#30 ← phi( @49/(byte*) heap_head#35 )
-  (byte) NUM_SQUARES#17 ← phi( @49/(byte) NUM_SQUARES#22 )
+  (word*) SQUARES#25 ← phi( @49/(word*) SQUARES#34 )
+  (byte*) heap_head#30 ← phi( @49/(byte*) heap_head#36 )
+  (byte) NUM_SQUARES#19 ← phi( @49/(byte) NUM_SQUARES#24 )
   (byte*) SCREEN_DIST#3 ← phi( @49/(byte*) SCREEN_DIST#8 )
   call main 
   to:@56
@@ -1579,6 +1590,8 @@ SYMBOL TABLE SSA
 (byte) NUM_SQUARES#44
 (byte) NUM_SQUARES#45
 (byte) NUM_SQUARES#46
+(byte) NUM_SQUARES#47
+(byte) NUM_SQUARES#48
 (byte) NUM_SQUARES#5
 (byte) NUM_SQUARES#6
 (byte) NUM_SQUARES#7
@@ -1688,6 +1701,7 @@ SYMBOL TABLE SSA
 (word*) SQUARES#5
 (word*) SQUARES#50
 (word*) SQUARES#51
+(word*) SQUARES#52
 (word*) SQUARES#6
 (word*) SQUARES#7
 (word*) SQUARES#8
@@ -2064,6 +2078,7 @@ SYMBOL TABLE SSA
 (byte*) heap_head#55
 (byte*) heap_head#56
 (byte*) heap_head#57
+(byte*) heap_head#58
 (byte*) heap_head#6
 (byte*) heap_head#7
 (byte*) heap_head#8
@@ -2278,25 +2293,28 @@ SYMBOL TABLE SSA
 (void()) init_squares()
 (byte~) init_squares::$0
 (void*~) init_squares::$1
-(number~) init_squares::$2
+(bool~) init_squares::$2
 (number~) init_squares::$3
 (number~) init_squares::$4
-(bool~) init_squares::$5
 (label) init_squares::@1
-(label) init_squares::@3
+(label) init_squares::@2
+(label) init_squares::@7
 (label) init_squares::@return
 (byte) init_squares::i
 (byte) init_squares::i#0
 (byte) init_squares::i#1
 (byte) init_squares::i#2
+(byte) init_squares::i#3
 (word) init_squares::sqr
 (word) init_squares::sqr#0
 (word) init_squares::sqr#1
 (word) init_squares::sqr#2
+(word) init_squares::sqr#3
 (word*) init_squares::squares
 (word*) init_squares::squares#0
 (word*) init_squares::squares#1
 (word*) init_squares::squares#2
+(word*) init_squares::squares#3
 (void()) main()
 (byte~) main::$5
 (byte~) main::$7
@@ -2777,10 +2795,8 @@ Adding number conversion cast (unumber) 1 in (number~) bsearch16u::$17 ← (numb
 Adding number conversion cast (unumber) bsearch16u::$17 in (number~) bsearch16u::$17 ← (unumber)(number) 1 * (const byte) SIZEOF_WORD
 Adding number conversion cast (unumber) 1 in (number~) bsearch16u::$18 ← (number) 1 * (const byte) SIZEOF_WORD
 Adding number conversion cast (unumber) bsearch16u::$18 in (number~) bsearch16u::$18 ← (unumber)(number) 1 * (const byte) SIZEOF_WORD
-Adding number conversion cast (unumber) 1 in (number~) init_squares::$2 ← (byte) NUM_SQUARES#7 - (number) 1
-Adding number conversion cast (unumber) init_squares::$2 in (number~) init_squares::$2 ← (byte) NUM_SQUARES#7 - (unumber)(number) 1
-Adding number conversion cast (unumber) 2 in (number~) init_squares::$3 ← (byte) init_squares::i#2 * (number) 2
-Adding number conversion cast (unumber) init_squares::$3 in (number~) init_squares::$3 ← (byte) init_squares::i#2 * (unumber)(number) 2
+Adding number conversion cast (unumber) 2 in (number~) init_squares::$3 ← (byte) init_squares::i#3 * (number) 2
+Adding number conversion cast (unumber) init_squares::$3 in (number~) init_squares::$3 ← (byte) init_squares::i#3 * (unumber)(number) 2
 Adding number conversion cast (unumber) 1 in (number~) init_squares::$4 ← (unumber~) init_squares::$3 + (number) 1
 Adding number conversion cast (unumber) init_squares::$4 in (number~) init_squares::$4 ← (unumber~) init_squares::$3 + (unumber)(number) 1
 Adding number conversion cast (snumber) 0 in (bool~) atan2_16::$0 ← (signed word) atan2_16::y#1 >= (number) 0
@@ -2859,12 +2875,12 @@ Adding number conversion cast (unumber) init_dist_screen::$7 in (number~) init_d
 Adding number conversion cast (unumber) $18 in (number~) init_dist_screen::$4 ← (number) $18 - (byte) init_dist_screen::y2#2
 Adding number conversion cast (unumber) init_dist_screen::$4 in (number~) init_dist_screen::$4 ← (unumber)(number) $18 - (byte) init_dist_screen::y2#2
 Adding number conversion cast (unumber) init_dist_screen::$5 in (number~) init_dist_screen::$5 ← (unumber~) init_dist_screen::$4
-Adding number conversion cast (unumber) init_dist_screen::$8 in (byte*) heap_head#43 ← phi( init_dist_screen::@2/(byte*) heap_head#46 init_dist_screen::@3/(byte*) heap_head#47 )
-  (byte) NUM_SQUARES#33 ← phi( init_dist_screen::@2/(byte) NUM_SQUARES#37 init_dist_screen::@3/(byte) NUM_SQUARES#38 )
+Adding number conversion cast (unumber) init_dist_screen::$8 in (byte*) heap_head#44 ← phi( init_dist_screen::@2/(byte*) heap_head#47 init_dist_screen::@3/(byte*) heap_head#48 )
+  (byte) NUM_SQUARES#35 ← phi( init_dist_screen::@2/(byte) NUM_SQUARES#39 init_dist_screen::@3/(byte) NUM_SQUARES#40 )
   (byte) init_dist_screen::y#7 ← phi( init_dist_screen::@2/(byte) init_dist_screen::y#9 init_dist_screen::@3/(byte) init_dist_screen::y#10 )
   (byte*) init_dist_screen::screen_bottomline#8 ← phi( init_dist_screen::@2/(byte*) init_dist_screen::screen_bottomline#11 init_dist_screen::@3/(byte*) init_dist_screen::screen_bottomline#12 )
   (byte*) init_dist_screen::screen_topline#8 ← phi( init_dist_screen::@2/(byte*) init_dist_screen::screen_topline#11 init_dist_screen::@3/(byte*) init_dist_screen::screen_topline#12 )
-  (word*) SQUARES#19 ← phi( init_dist_screen::@2/(word*) SQUARES#28 init_dist_screen::@3/(word*) SQUARES#29 )
+  (word*) SQUARES#19 ← phi( init_dist_screen::@2/(word*) SQUARES#29 init_dist_screen::@3/(word*) SQUARES#30 )
   (number~) init_dist_screen::$8 ← phi( init_dist_screen::@2/(unumber~) init_dist_screen::$7 init_dist_screen::@3/(unumber~) init_dist_screen::$5 )
 Adding number conversion cast (unumber) $13 in (bool~) init_dist_screen::$10 ← (byte) init_dist_screen::x#2 <= (number) $13
 Adding number conversion cast (unumber) 2 in (number~) init_dist_screen::$11 ← (byte) init_dist_screen::x#3 * (number) 2
@@ -2878,15 +2894,15 @@ Adding number conversion cast (unumber) init_dist_screen::$16 in (number~) init_
 Adding number conversion cast (unumber) $27 in (number~) init_dist_screen::$13 ← (number) $27 - (byte) init_dist_screen::x2#2
 Adding number conversion cast (unumber) init_dist_screen::$13 in (number~) init_dist_screen::$13 ← (unumber)(number) $27 - (byte) init_dist_screen::x2#2
 Adding number conversion cast (unumber) init_dist_screen::$14 in (number~) init_dist_screen::$14 ← (unumber~) init_dist_screen::$13
-Adding number conversion cast (unumber) init_dist_screen::$17 in (byte*) heap_head#48 ← phi( init_dist_screen::@8/(byte*) heap_head#51 init_dist_screen::@9/(byte*) heap_head#52 )
+Adding number conversion cast (unumber) init_dist_screen::$17 in (byte*) heap_head#49 ← phi( init_dist_screen::@8/(byte*) heap_head#52 init_dist_screen::@9/(byte*) heap_head#53 )
   (byte) init_dist_screen::y#11 ← phi( init_dist_screen::@8/(byte) init_dist_screen::y#12 init_dist_screen::@9/(byte) init_dist_screen::y#13 )
   (byte) init_dist_screen::xb#4 ← phi( init_dist_screen::@8/(byte) init_dist_screen::xb#5 init_dist_screen::@9/(byte) init_dist_screen::xb#6 )
   (byte*) init_dist_screen::screen_bottomline#7 ← phi( init_dist_screen::@8/(byte*) init_dist_screen::screen_bottomline#9 init_dist_screen::@9/(byte*) init_dist_screen::screen_bottomline#10 )
   (byte) init_dist_screen::x#6 ← phi( init_dist_screen::@8/(byte) init_dist_screen::x#7 init_dist_screen::@9/(byte) init_dist_screen::x#8 )
   (byte*) init_dist_screen::screen_topline#7 ← phi( init_dist_screen::@8/(byte*) init_dist_screen::screen_topline#9 init_dist_screen::@9/(byte*) init_dist_screen::screen_topline#10 )
-  (byte) NUM_SQUARES#21 ← phi( init_dist_screen::@8/(byte) NUM_SQUARES#28 init_dist_screen::@9/(byte) NUM_SQUARES#29 )
+  (byte) NUM_SQUARES#23 ← phi( init_dist_screen::@8/(byte) NUM_SQUARES#30 init_dist_screen::@9/(byte) NUM_SQUARES#31 )
   (word) init_dist_screen::yds#2 ← phi( init_dist_screen::@8/(word) init_dist_screen::yds#3 init_dist_screen::@9/(word) init_dist_screen::yds#4 )
-  (word*) SQUARES#18 ← phi( init_dist_screen::@8/(word*) SQUARES#31 init_dist_screen::@9/(word*) SQUARES#32 )
+  (word*) SQUARES#18 ← phi( init_dist_screen::@8/(word*) SQUARES#32 init_dist_screen::@9/(word*) SQUARES#33 )
   (number~) init_dist_screen::$17 ← phi( init_dist_screen::@8/(unumber~) init_dist_screen::$16 init_dist_screen::@9/(unumber~) init_dist_screen::$14 )
 Adding number conversion cast (unumber) $100 in (bool~) make_plasma_charset::$2 ← (word) make_plasma_charset::c#2 < (number) $100
 Adding number conversion cast (unumber) 8 in (bool~) make_plasma_charset::$4 ← (byte) make_plasma_charset::i#2 < (number) 8
@@ -2939,7 +2955,6 @@ Simplifying constant integer cast 0
 Simplifying constant integer cast 1
 Simplifying constant integer cast 1
 Simplifying constant integer cast 1
-Simplifying constant integer cast 1
 Simplifying constant integer cast 2
 Simplifying constant integer cast 1
 Simplifying constant integer cast 0
@@ -3016,7 +3031,6 @@ Finalized signed number type (signed byte) 0
 Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) 1
-Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) 2
 Finalized unsigned number type (byte) 1
 Finalized signed number type (signed byte) 0
@@ -3084,8 +3098,7 @@ Finalized unsigned number type (byte) 8
 Successful SSA optimization PassNFinalizeNumberTypeConversions
 Inferred type updated to byte in (unumber~) bsearch16u::$17 ← (byte) 1 * (const byte) SIZEOF_WORD
 Inferred type updated to byte in (unumber~) bsearch16u::$18 ← (byte) 1 * (const byte) SIZEOF_WORD
-Inferred type updated to byte in (unumber~) init_squares::$2 ← (byte) NUM_SQUARES#7 - (byte) 1
-Inferred type updated to byte in (unumber~) init_squares::$3 ← (byte) init_squares::i#2 * (byte) 2
+Inferred type updated to byte in (unumber~) init_squares::$3 ← (byte) init_squares::i#3 * (byte) 2
 Inferred type updated to byte in (unumber~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
 Inferred type updated to word in (unumber~) atan2_16::$12 ← (word) $8000 - (word) atan2_16::angle#9
 Inferred type updated to word in (unumber~) main::toD0181_$1 ← (word~) main::toD0181_$0 & (word) $3fff
@@ -3154,13 +3167,17 @@ Alias (word*) bsearch16u::return#1 = (word*) bsearch16u::return#4
 Alias (word*) bsearch16u::items#0 = (word*~) bsearch16u::$15 
 Alias (word*~) bsearch16u::$2 = (word*~) bsearch16u::$1 
 Alias (word*) bsearch16u::return#2 = (word*~) bsearch16u::$4 
-Alias (byte*) heap_head#0 = (byte*) heap_head#36 (byte*) heap_head#31 (byte*) heap_head#23 
+Alias (byte*) heap_head#0 = (byte*) heap_head#37 (byte*) heap_head#32 (byte*) heap_head#23 
 Alias (word) malloc::size#0 = (byte~) init_squares::$0 
 Alias (void*) malloc::return#2 = (void*) malloc::return#6 
-Alias (byte) NUM_SQUARES#6 = (byte) NUM_SQUARES#7 
+Alias (byte) NUM_SQUARES#14 = (byte) NUM_SQUARES#6 
 Alias (byte*) heap_head#14 = (byte*) heap_head#3 
-Alias (byte*) heap_head#15 = (byte*) heap_head#25 (byte*) heap_head#4 
-Alias (word*) SQUARES#17 = (word*) SQUARES#8 (word*) SQUARES#2 
+Alias (word) init_squares::sqr#2 = (word) init_squares::sqr#3 
+Alias (word*) init_squares::squares#2 = (word*) init_squares::squares#3 
+Alias (byte) init_squares::i#2 = (byte) init_squares::i#3 
+Alias (byte) NUM_SQUARES#13 = (byte) NUM_SQUARES#7 
+Alias (byte*) heap_head#15 = (byte*) heap_head#31 (byte*) heap_head#25 (byte*) heap_head#4 
+Alias (word*) SQUARES#17 = (word*) SQUARES#26 (word*) SQUARES#8 (word*) SQUARES#2 
 Alias (word) sqr::return#0 = (word) sqr::return#4 (word) sqr::return#1 
 Alias (word*) bsearch16u::return#3 = (word*) bsearch16u::return#5 
 Alias (word*) SQUARES#10 = (word*) SQUARES#11 
@@ -3203,8 +3220,8 @@ Alias (word) atan2_16::angle#4 = (word~) atan2_16::$12
 Alias (word) atan2_16::return#0 = (word) atan2_16::angle#10 (word) atan2_16::return#3 (word) atan2_16::return#1 
 Alias (word) atan2_16::angle#11 = (word) atan2_16::angle#15 
 Alias (word) atan2_16::angle#5 = (word~) atan2_16::$15 
-Alias (byte) NUM_SQUARES#0 = (byte) NUM_SQUARES#39 (byte) NUM_SQUARES#35 (byte) NUM_SQUARES#30 (byte) NUM_SQUARES#25 (byte) NUM_SQUARES#22 (byte) NUM_SQUARES#17 
-Alias (word*) SQUARES#0 = (word*) SQUARES#46 (word*) SQUARES#44 (word*) SQUARES#41 (word*) SQUARES#36 (word*) SQUARES#33 (word*) SQUARES#25 
+Alias (byte) NUM_SQUARES#0 = (byte) NUM_SQUARES#41 (byte) NUM_SQUARES#37 (byte) NUM_SQUARES#32 (byte) NUM_SQUARES#27 (byte) NUM_SQUARES#24 (byte) NUM_SQUARES#19 
+Alias (word*) SQUARES#0 = (word*) SQUARES#47 (word*) SQUARES#45 (word*) SQUARES#42 (word*) SQUARES#37 (word*) SQUARES#34 (word*) SQUARES#25 
 Alias (byte*) print_line_cursor#0 = (byte*) print_screen#0 (byte*) print_char_cursor#0 (byte*) print_line_cursor#34 (byte*) print_char_cursor#41 (byte*) print_screen#12 (byte*) print_line_cursor#30 (byte*) print_char_cursor#37 (byte*) print_screen#11 (byte*) print_line_cursor#27 (byte*) print_char_cursor#35 (byte*) print_screen#10 (byte*) print_line_cursor#24 (byte*) print_char_cursor#32 (byte*) print_screen#9 (byte*) print_line_cursor#18 (byte*) print_char_cursor#25 (byte*) print_screen#8 
 Alias (byte*) print_char_cursor#1 = (byte*) print_char_cursor#12 (byte*) print_char_cursor#2 
 Alias (byte*) print_line_cursor#1 = (byte*) print_screen#2 (byte*) print_screen#1 (byte*) print_char_cursor#3 (byte*) print_line_cursor#8 (byte*) print_char_cursor#13 (byte*) print_line_cursor#2 (byte*) print_char_cursor#4 
@@ -3213,7 +3230,7 @@ Alias (void*) malloc::return#3 = (void*) malloc::return#7
 Alias (byte*) heap_head#16 = (byte*) heap_head#5 
 Alias (void*) malloc::return#4 = (void*) malloc::return#8 
 Alias (byte*) SCREEN_DIST#0 = (byte*) SCREEN_DIST#12 (byte*) SCREEN_DIST#8 (byte*) SCREEN_DIST#3 
-Alias (byte*) heap_head#17 = (byte*) heap_head#6 (byte*) heap_head#35 (byte*) heap_head#30 
+Alias (byte*) heap_head#17 = (byte*) heap_head#6 (byte*) heap_head#36 (byte*) heap_head#30 
 Alias (byte*) SCREEN_ANGLE#1 = (byte*) SCREEN_ANGLE#3 (byte*) SCREEN_ANGLE#16 (byte*) SCREEN_ANGLE#13 (byte*) SCREEN_ANGLE#9 
 Alias (byte*) print_line_cursor#14 = (byte*) print_line_cursor#19 (byte*) print_line_cursor#25 
 Alias (byte*) print_char_cursor#21 = (byte*) print_char_cursor#26 (byte*) print_char_cursor#33 
@@ -3221,18 +3238,18 @@ Alias (byte*) print_screen#5 = (byte*) print_screen#6 (byte*) print_screen#7
 Alias (byte) sin_offset_x#19 = (byte) sin_offset_x#29 (byte) sin_offset_x#30 (byte) sin_offset_x#27 (byte) sin_offset_x#23 
 Alias (byte) sin_offset_y#19 = (byte) sin_offset_y#29 (byte) sin_offset_y#30 (byte) sin_offset_y#27 (byte) sin_offset_y#23 
 Alias (byte*) SCREEN_DIST#1 = (byte*) SCREEN_DIST#18 (byte*) SCREEN_DIST#16 (byte*) SCREEN_DIST#13 (byte*) SCREEN_DIST#9 
-Alias (byte) NUM_SQUARES#1 = (byte) NUM_SQUARES#9 (byte) NUM_SQUARES#31 (byte) NUM_SQUARES#23 (byte) NUM_SQUARES#18 
-Alias (byte*) heap_head#18 = (byte*) heap_head#7 (byte*) heap_head#41 (byte*) heap_head#37 (byte*) heap_head#32 
-Alias (word*) SQUARES#12 = (word*) SQUARES#3 (word*) SQUARES#42 (word*) SQUARES#34 (word*) SQUARES#26 
+Alias (byte) NUM_SQUARES#1 = (byte) NUM_SQUARES#9 (byte) NUM_SQUARES#33 (byte) NUM_SQUARES#25 (byte) NUM_SQUARES#20 
+Alias (byte*) heap_head#18 = (byte*) heap_head#7 (byte*) heap_head#42 (byte*) heap_head#38 (byte*) heap_head#33 
+Alias (word*) SQUARES#12 = (word*) SQUARES#3 (word*) SQUARES#43 (word*) SQUARES#35 (word*) SQUARES#27 
 Alias (byte*) print_line_cursor#20 = (byte*) print_line_cursor#3 (byte*) print_line_cursor#9 
 Alias (byte*) print_char_cursor#14 = (byte*) print_char_cursor#5 (byte*) print_char_cursor#27 
 Alias (byte) sin_offset_x#14 = (byte) sin_offset_x#16 (byte) sin_offset_x#9 (byte) sin_offset_x#2 
 Alias (byte) sin_offset_y#14 = (byte) sin_offset_y#16 (byte) sin_offset_y#9 (byte) sin_offset_y#2 
 Alias (byte*) SCREEN_ANGLE#10 = (byte*) SCREEN_ANGLE#4 (byte*) SCREEN_ANGLE#7 (byte*) SCREEN_ANGLE#14 (byte*) SCREEN_ANGLE#11 (byte*) SCREEN_ANGLE#8 (byte*) SCREEN_ANGLE#5 (byte*) SCREEN_ANGLE#18 (byte*) SCREEN_ANGLE#17 (byte*) SCREEN_ANGLE#15 
 Alias (byte*) SCREEN_DIST#10 = (byte*) SCREEN_DIST#4 (byte*) SCREEN_DIST#6 (byte*) SCREEN_DIST#14 (byte*) SCREEN_DIST#11 (byte*) SCREEN_DIST#7 (byte*) SCREEN_DIST#5 (byte*) SCREEN_DIST#19 (byte*) SCREEN_DIST#17 (byte*) SCREEN_DIST#15 
-Alias (byte) NUM_SQUARES#10 = (byte) NUM_SQUARES#46 (byte) NUM_SQUARES#15 (byte) NUM_SQUARES#45 (byte) NUM_SQUARES#44 (byte) NUM_SQUARES#42 (byte) NUM_SQUARES#40 (byte) NUM_SQUARES#36 (byte) NUM_SQUARES#32 (byte) NUM_SQUARES#24 (byte) NUM_SQUARES#19 (byte) NUM_SQUARES#2 
-Alias (byte*) heap_head#19 = (byte*) heap_head#57 (byte*) heap_head#27 (byte*) heap_head#56 (byte*) heap_head#55 (byte*) heap_head#53 (byte*) heap_head#49 (byte*) heap_head#45 (byte*) heap_head#42 (byte*) heap_head#38 (byte*) heap_head#33 (byte*) heap_head#8 
-Alias (word*) SQUARES#13 = (word*) SQUARES#51 (word*) SQUARES#22 (word*) SQUARES#50 (word*) SQUARES#49 (word*) SQUARES#48 (word*) SQUARES#47 (word*) SQUARES#45 (word*) SQUARES#43 (word*) SQUARES#35 (word*) SQUARES#27 (word*) SQUARES#4 
+Alias (byte) NUM_SQUARES#10 = (byte) NUM_SQUARES#48 (byte) NUM_SQUARES#17 (byte) NUM_SQUARES#47 (byte) NUM_SQUARES#46 (byte) NUM_SQUARES#44 (byte) NUM_SQUARES#42 (byte) NUM_SQUARES#38 (byte) NUM_SQUARES#34 (byte) NUM_SQUARES#26 (byte) NUM_SQUARES#21 (byte) NUM_SQUARES#2 
+Alias (byte*) heap_head#19 = (byte*) heap_head#58 (byte*) heap_head#27 (byte*) heap_head#57 (byte*) heap_head#56 (byte*) heap_head#54 (byte*) heap_head#50 (byte*) heap_head#46 (byte*) heap_head#43 (byte*) heap_head#39 (byte*) heap_head#34 (byte*) heap_head#8 
+Alias (word*) SQUARES#13 = (word*) SQUARES#52 (word*) SQUARES#22 (word*) SQUARES#51 (word*) SQUARES#50 (word*) SQUARES#49 (word*) SQUARES#48 (word*) SQUARES#46 (word*) SQUARES#44 (word*) SQUARES#36 (word*) SQUARES#28 (word*) SQUARES#4 
 Alias (byte*) print_line_cursor#10 = (byte*) print_line_cursor#48 (byte*) print_line_cursor#15 (byte*) print_line_cursor#46 (byte*) print_line_cursor#43 (byte*) print_line_cursor#40 (byte*) print_line_cursor#38 (byte*) print_line_cursor#35 (byte*) print_line_cursor#31 (byte*) print_line_cursor#26 (byte*) print_line_cursor#21 (byte*) print_line_cursor#4 
 Alias (byte*) print_char_cursor#15 = (byte*) print_char_cursor#53 (byte*) print_char_cursor#22 (byte*) print_char_cursor#52 (byte*) print_char_cursor#50 (byte*) print_char_cursor#47 (byte*) print_char_cursor#44 (byte*) print_char_cursor#42 (byte*) print_char_cursor#38 (byte*) print_char_cursor#34 (byte*) print_char_cursor#28 (byte*) print_char_cursor#6 
 Alias (byte) sin_offset_x#0 = (byte) sin_offset_x#7 (byte) sin_offset_x#24 (byte) sin_offset_x#21 (byte) sin_offset_x#15 
@@ -3273,17 +3290,17 @@ Alias (word) atan2_16::return#2 = (word) atan2_16::return#4
 Alias (word) init_angle_screen::angle_w#0 = (word~) init_angle_screen::$10 
 Alias (byte) init_angle_screen::ang_w#0 = (byte~) init_angle_screen::$12 
 Alias (byte*) init_dist_screen::screen#1 = (byte*) init_dist_screen::screen#2 (byte*) init_dist_screen::screen_topline#0 
-Alias (byte) NUM_SQUARES#3 = (byte) NUM_SQUARES#43 
+Alias (byte) NUM_SQUARES#3 = (byte) NUM_SQUARES#45 
 Alias (byte*) heap_head#20 = (byte*) heap_head#9 
 Alias (word*) SQUARES#14 = (word*) SQUARES#5 
 Alias (byte*) init_dist_screen::screen_bottomline#0 = (byte*~) init_dist_screen::$1 
 Alias (byte) init_dist_screen::y2#0 = (byte~) init_dist_screen::$2 (byte) init_dist_screen::y2#1 (byte) init_dist_screen::y2#2 
-Alias (word*) SQUARES#28 = (word*) SQUARES#37 (word*) SQUARES#29 
+Alias (word*) SQUARES#29 = (word*) SQUARES#38 (word*) SQUARES#30 
 Alias (byte*) init_dist_screen::screen_topline#11 = (byte*) init_dist_screen::screen_topline#14 (byte*) init_dist_screen::screen_topline#12 
 Alias (byte*) init_dist_screen::screen_bottomline#11 = (byte*) init_dist_screen::screen_bottomline#14 (byte*) init_dist_screen::screen_bottomline#12 
 Alias (byte) init_dist_screen::y#10 = (byte) init_dist_screen::y#9 (byte) init_dist_screen::y#2 
-Alias (byte) NUM_SQUARES#37 = (byte) NUM_SQUARES#41 (byte) NUM_SQUARES#38 
-Alias (byte*) heap_head#46 = (byte*) heap_head#50 (byte*) heap_head#47 
+Alias (byte) NUM_SQUARES#39 = (byte) NUM_SQUARES#43 (byte) NUM_SQUARES#40 
+Alias (byte*) heap_head#47 = (byte*) heap_head#51 (byte*) heap_head#48 
 Alias (byte~) init_dist_screen::$7 = (byte~) init_dist_screen::$6 
 Alias (byte~) init_dist_screen::$5 = (byte~) init_dist_screen::$4 
 Alias (byte) init_dist_screen::yd#0 = (byte~) init_dist_screen::$8 
@@ -3291,33 +3308,33 @@ Alias (word) sqr::return#2 = (word) sqr::return#5
 Alias (byte*) init_dist_screen::screen_topline#6 = (byte*) init_dist_screen::screen_topline#8 
 Alias (byte*) init_dist_screen::screen_bottomline#6 = (byte*) init_dist_screen::screen_bottomline#8 
 Alias (byte) init_dist_screen::y#5 = (byte) init_dist_screen::y#7 
-Alias (byte) NUM_SQUARES#26 = (byte) NUM_SQUARES#33 
-Alias (byte*) heap_head#39 = (byte*) heap_head#43 
-Alias (word*) SQUARES#19 = (word*) SQUARES#38 
+Alias (byte) NUM_SQUARES#28 = (byte) NUM_SQUARES#35 
+Alias (byte*) heap_head#40 = (byte*) heap_head#44 
+Alias (word*) SQUARES#19 = (word*) SQUARES#39 
 Alias (word) init_dist_screen::yds#0 = (word~) init_dist_screen::$9 
 Alias (byte) init_dist_screen::x#2 = (byte) init_dist_screen::x#3 (byte) init_dist_screen::x#7 (byte) init_dist_screen::x#8 
-Alias (word*) SQUARES#15 = (word*) SQUARES#40 (word*) SQUARES#30 (word*) SQUARES#24 (word*) SQUARES#31 (word*) SQUARES#32 (word*) SQUARES#6 
+Alias (word*) SQUARES#15 = (word*) SQUARES#41 (word*) SQUARES#31 (word*) SQUARES#24 (word*) SQUARES#32 (word*) SQUARES#33 (word*) SQUARES#6 
 Alias (word) init_dist_screen::yds#3 = (word) init_dist_screen::yds#5 (word) init_dist_screen::yds#6 (word) init_dist_screen::yds#4 
-Alias (byte) NUM_SQUARES#11 = (byte) NUM_SQUARES#34 (byte) NUM_SQUARES#20 (byte) NUM_SQUARES#16 (byte) NUM_SQUARES#28 (byte) NUM_SQUARES#29 (byte) NUM_SQUARES#4 
+Alias (byte) NUM_SQUARES#11 = (byte) NUM_SQUARES#36 (byte) NUM_SQUARES#22 (byte) NUM_SQUARES#18 (byte) NUM_SQUARES#30 (byte) NUM_SQUARES#31 (byte) NUM_SQUARES#4 
 Alias (byte*) init_dist_screen::screen_topline#10 = (byte*) init_dist_screen::screen_topline#13 (byte*) init_dist_screen::screen_topline#4 (byte*) init_dist_screen::screen_topline#2 (byte*) init_dist_screen::screen_topline#9 
 Alias (byte*) init_dist_screen::screen_bottomline#10 = (byte*) init_dist_screen::screen_bottomline#13 (byte*) init_dist_screen::screen_bottomline#4 (byte*) init_dist_screen::screen_bottomline#2 (byte*) init_dist_screen::screen_bottomline#9 
 Alias (byte) init_dist_screen::xb#5 = (byte) init_dist_screen::xb#7 (byte) init_dist_screen::xb#8 (byte) init_dist_screen::xb#6 
 Alias (byte) init_dist_screen::y#12 = (byte) init_dist_screen::y#14 (byte) init_dist_screen::y#4 (byte) init_dist_screen::y#3 (byte) init_dist_screen::y#13 
-Alias (byte*) heap_head#10 = (byte*) heap_head#54 (byte*) heap_head#34 (byte*) heap_head#29 (byte*) heap_head#51 (byte*) heap_head#52 (byte*) heap_head#21 
+Alias (byte*) heap_head#10 = (byte*) heap_head#55 (byte*) heap_head#35 (byte*) heap_head#29 (byte*) heap_head#52 (byte*) heap_head#53 (byte*) heap_head#21 
 Alias (byte) init_dist_screen::x2#0 = (byte~) init_dist_screen::$11 (byte) init_dist_screen::x2#1 (byte) init_dist_screen::x2#2 
 Alias (byte~) init_dist_screen::$16 = (byte~) init_dist_screen::$15 
 Alias (byte~) init_dist_screen::$14 = (byte~) init_dist_screen::$13 
 Alias (byte) init_dist_screen::xd#0 = (byte~) init_dist_screen::$17 
 Alias (word) sqr::return#3 = (word) sqr::return#6 
 Alias (word) init_dist_screen::yds#1 = (word) init_dist_screen::yds#2 (word) init_dist_screen::yds#7 
-Alias (word*) SQUARES#18 = (word*) SQUARES#20 (word*) SQUARES#39 
-Alias (byte) NUM_SQUARES#13 = (byte) NUM_SQUARES#21 (byte) NUM_SQUARES#27 
+Alias (word*) SQUARES#18 = (word*) SQUARES#20 (word*) SQUARES#40 
+Alias (byte) NUM_SQUARES#15 = (byte) NUM_SQUARES#23 (byte) NUM_SQUARES#29 
 Alias (byte*) init_dist_screen::screen_topline#3 = (byte*) init_dist_screen::screen_topline#5 (byte*) init_dist_screen::screen_topline#7 
 Alias (byte) init_dist_screen::x#4 = (byte) init_dist_screen::x#5 (byte) init_dist_screen::x#6 
 Alias (byte*) init_dist_screen::screen_bottomline#3 = (byte*) init_dist_screen::screen_bottomline#5 (byte*) init_dist_screen::screen_bottomline#7 
 Alias (byte) init_dist_screen::xb#2 = (byte) init_dist_screen::xb#3 (byte) init_dist_screen::xb#4 
 Alias (byte) init_dist_screen::y#11 = (byte) init_dist_screen::y#8 (byte) init_dist_screen::y#6 
-Alias (byte*) heap_head#40 = (byte*) heap_head#44 (byte*) heap_head#48 
+Alias (byte*) heap_head#41 = (byte*) heap_head#45 (byte*) heap_head#49 
 Alias (word) init_dist_screen::xds#0 = (word~) init_dist_screen::$18 
 Alias (word) init_dist_screen::ds#0 = (word~) init_dist_screen::$19 
 Alias (byte) sqrt::return#2 = (byte) sqrt::return#4 
@@ -3369,21 +3386,21 @@ Alias (word) atan2_16::angle#14 = (word) atan2_16::angle#16
 Alias (signed word) atan2_16::x#11 = (signed word) atan2_16::x#14 (signed word) atan2_16::x#8 
 Alias (signed word) atan2_16::y#10 = (signed word) atan2_16::y#16 (signed word) atan2_16::y#8 
 Alias (signed word) atan2_16::y#4 = (signed word) atan2_16::y#5 
-Alias (word*) SQUARES#19 = (word*) SQUARES#28 
+Alias (word*) SQUARES#19 = (word*) SQUARES#29 
 Alias (byte*) init_dist_screen::screen_topline#11 = (byte*) init_dist_screen::screen_topline#6 
 Alias (byte*) init_dist_screen::screen_bottomline#11 = (byte*) init_dist_screen::screen_bottomline#6 
 Alias (byte) init_dist_screen::y#10 = (byte) init_dist_screen::y#5 
-Alias (byte) NUM_SQUARES#26 = (byte) NUM_SQUARES#37 
-Alias (byte*) heap_head#39 = (byte*) heap_head#46 
+Alias (byte) NUM_SQUARES#28 = (byte) NUM_SQUARES#39 
+Alias (byte*) heap_head#40 = (byte*) heap_head#47 
 Alias (word*) SQUARES#15 = (word*) SQUARES#18 
 Alias (word) init_dist_screen::yds#1 = (word) init_dist_screen::yds#3 
-Alias (byte) NUM_SQUARES#11 = (byte) NUM_SQUARES#13 
+Alias (byte) NUM_SQUARES#11 = (byte) NUM_SQUARES#15 
 Alias (byte*) init_dist_screen::screen_topline#10 = (byte*) init_dist_screen::screen_topline#3 
 Alias (byte) init_dist_screen::x#2 = (byte) init_dist_screen::x#4 
 Alias (byte*) init_dist_screen::screen_bottomline#10 = (byte*) init_dist_screen::screen_bottomline#3 
 Alias (byte) init_dist_screen::xb#2 = (byte) init_dist_screen::xb#5 
 Alias (byte) init_dist_screen::y#11 = (byte) init_dist_screen::y#12 
-Alias (byte*) heap_head#10 = (byte*) heap_head#40 
+Alias (byte*) heap_head#10 = (byte*) heap_head#41 
 Alias (byte) make_plasma_charset::ii#2 = (byte) make_plasma_charset::ii#3 
 Alias (word) make_plasma_charset::c#10 = (word) make_plasma_charset::c#13 
 Alias (byte) make_plasma_charset::i#3 = (byte) make_plasma_charset::i#5 
@@ -3402,9 +3419,10 @@ Identical Phi Values (byte) bsearch16u::num#7 (byte) bsearch16u::num#2
 Identical Phi Values (word*) bsearch16u::items#7 (word*) bsearch16u::items#1
 Identical Phi Values (word) bsearch16u::key#4 (word) bsearch16u::key#0
 Identical Phi Values (word) bsearch16u::key#1 (word) bsearch16u::key#4
-Identical Phi Values (byte) NUM_SQUARES#6 (byte) NUM_SQUARES#3
+Identical Phi Values (byte) NUM_SQUARES#14 (byte) NUM_SQUARES#3
 Identical Phi Values (byte*) heap_head#24 (byte*) heap_head#28
 Identical Phi Values (byte*) heap_head#14 (byte*) heap_head#1
+Identical Phi Values (byte) NUM_SQUARES#13 (byte) NUM_SQUARES#14
 Identical Phi Values (byte*) heap_head#15 (byte*) heap_head#14
 Identical Phi Values (word*) SQUARES#17 (word*) SQUARES#1
 Identical Phi Values (word) sqrt::val#1 (word) sqrt::val#0
@@ -3424,7 +3442,7 @@ Identical Phi Values (byte*) print_line_cursor#1 (byte*) print_screen#3
 Identical Phi Values (byte*) heap_head#16 (byte*) heap_head#1
 Identical Phi Values (byte*) heap_head#17 (byte*) heap_head#1
 Identical Phi Values (byte*) SCREEN_DIST#1 (byte*) SCREEN_DIST#0
-Identical Phi Values (byte) NUM_SQUARES#14 (byte) NUM_SQUARES#0
+Identical Phi Values (byte) NUM_SQUARES#16 (byte) NUM_SQUARES#0
 Identical Phi Values (byte*) heap_head#26 (byte*) heap_head#17
 Identical Phi Values (word*) SQUARES#21 (word*) SQUARES#0
 Identical Phi Values (byte*) SCREEN_ANGLE#1 (byte*) SCREEN_ANGLE#0
@@ -3471,8 +3489,8 @@ Identical Phi Values (word*) SQUARES#14 (word*) SQUARES#17
 Identical Phi Values (byte*) init_dist_screen::screen_topline#10 (byte*) init_dist_screen::screen_topline#11
 Identical Phi Values (byte*) init_dist_screen::screen_bottomline#10 (byte*) init_dist_screen::screen_bottomline#11
 Identical Phi Values (byte) init_dist_screen::y#11 (byte) init_dist_screen::y#10
-Identical Phi Values (byte) NUM_SQUARES#11 (byte) NUM_SQUARES#26
-Identical Phi Values (byte*) heap_head#10 (byte*) heap_head#39
+Identical Phi Values (byte) NUM_SQUARES#11 (byte) NUM_SQUARES#28
+Identical Phi Values (byte*) heap_head#10 (byte*) heap_head#40
 Identical Phi Values (word*) SQUARES#15 (word*) SQUARES#19
 Identical Phi Values (word) init_dist_screen::yds#1 (word) init_dist_screen::yds#0
 Identical Phi Values (byte*) print_screen#3 (byte*) print_screen#5
@@ -3507,8 +3525,8 @@ Identical Phi Values (byte*) doplasma::sin_y#2 (byte*) doplasma::sin_y#0
 Identical Phi Values (byte) sin_offset_x#26 (byte) sin_offset_x#10
 Identical Phi Values (byte) sin_offset_y#26 (byte) sin_offset_y#10
 Identical Phi Values (word*) SQUARES#19 (word*) SQUARES#1
-Identical Phi Values (byte) NUM_SQUARES#26 (byte) NUM_SQUARES#3
-Identical Phi Values (byte*) heap_head#39 (byte*) heap_head#1
+Identical Phi Values (byte) NUM_SQUARES#28 (byte) NUM_SQUARES#3
+Identical Phi Values (byte*) heap_head#40 (byte*) heap_head#1
 Identical Phi Values (word) make_plasma_charset::c#11 (word) make_plasma_charset::c#2
 Identical Phi Values (byte*) make_plasma_charset::charset#11 (byte*) make_plasma_charset::charset#10
 Identical Phi Values (byte*) print_char_cursor#20 (byte*) print_char_cursor#18
@@ -3524,7 +3542,7 @@ Simple Condition (bool~) bsearch16u::$5 [33] if((byte) bsearch16u::num#3>(byte)
 Simple Condition (bool~) bsearch16u::$12 [45] if((signed word) bsearch16u::result#0!=(signed byte) 0) goto bsearch16u::@9
 Simple Condition (bool~) bsearch16u::$0 [48] if(*((word*) bsearch16u::items#2)<=(word) bsearch16u::key#0) goto bsearch16u::@1
 Simple Condition (bool~) bsearch16u::$14 [52] if((signed word) bsearch16u::result#0<=(signed byte) 0) goto bsearch16u::@10
-Simple Condition (bool~) init_squares::$5 [97] if((byte) init_squares::i#1!=rangelast(0,init_squares::$2)) goto init_squares::@1
+Simple Condition (bool~) init_squares::$2 [90] if((byte) init_squares::i#2<(byte) NUM_SQUARES#3) goto init_squares::@2
 Simple Condition (bool~) atan2_16::$0 [127] if((signed word) atan2_16::y#0>=(signed byte) 0) goto atan2_16::@1
 Simple Condition (bool~) atan2_16::$5 [136] if((signed word) atan2_16::x#0>=(signed byte) 0) goto atan2_16::@4
 Simple Condition (bool~) atan2_16::$17 [149] if((signed word) atan2_16::yi#3!=(signed byte) 0) goto atan2_16::@16
@@ -3617,8 +3635,8 @@ Rewriting conditional comparison [373] if((byte) init_angle_screen::x#2<=(byte)
 Rewriting conditional comparison [445] if((byte) init_dist_screen::x#2<=(byte) $13) goto init_dist_screen::@6
 De-inlining pointer[w] to *(pointer+w)   [531] *((const byte*) make_plasma_charset::charset#0 + (word~) make_plasma_charset::$11) ← (byte) make_plasma_charset::b#2
 Successful SSA optimization Pass2DeInlineWordDerefIdx
-Eliminating unused variable (void*) memset::return#2 and assignment [105] (void*) memset::return#2 ← (void*) memset::str#3
-Eliminating unused variable (void*) memset::return#3 and assignment [126] (void*) memset::return#3 ← (void*) memset::str#3
+Eliminating unused variable (void*) memset::return#2 and assignment [104] (void*) memset::return#2 ← (void*) memset::str#3
+Eliminating unused variable (void*) memset::return#3 and assignment [125] (void*) memset::return#3 ← (void*) memset::str#3
 Eliminating unused constant (const byte) NUM_SQUARES#0
 Eliminating unused constant (const word*) SQUARES#0
 Successful SSA optimization PassNEliminateUnusedVars
@@ -3657,29 +3675,17 @@ Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) $d
 Successful SSA optimization PassNFinalizeNumberTypeConversions
 Constant right-side identified [34] (word) malloc::size#0 ← (const byte) NUM_SQUARES#3 * (const byte) SIZEOF_WORD
-Constant right-side identified [40] (byte~) init_squares::$2 ← (const byte) NUM_SQUARES#3 - (byte) 1
-Constant right-side identified [127] (word~) main::toD0181_$1 ← (const word) main::toD0181_$0 & (word) $3fff
-Constant right-side identified [130] (byte~) main::toD0181_$5 ← > (const word) main::toD0181_$4
-Constant right-side identified [136] (word~) main::toD0182_$1 ← (const word) main::toD0182_$0 & (word) $3fff
-Constant right-side identified [139] (byte~) main::toD0182_$5 ← > (const word) main::toD0182_$4
+Constant right-side identified [126] (word~) main::toD0181_$1 ← (const word) main::toD0181_$0 & (word) $3fff
+Constant right-side identified [129] (byte~) main::toD0181_$5 ← > (const word) main::toD0181_$4
+Constant right-side identified [135] (word~) main::toD0182_$1 ← (const word) main::toD0182_$0 & (word) $3fff
+Constant right-side identified [138] (byte~) main::toD0182_$5 ← > (const word) main::toD0182_$4
 Successful SSA optimization Pass2ConstantRValueConsolidation
 Constant (const word) malloc::size#0 = NUM_SQUARES#3*SIZEOF_WORD
-Constant (const byte) init_squares::$2 = NUM_SQUARES#3-1
 Constant (const word) main::toD0181_$1 = main::toD0181_$0&$3fff
 Constant (const byte) main::toD0181_$5 = >main::toD0181_$4
 Constant (const word) main::toD0182_$1 = main::toD0182_$0&$3fff
 Constant (const byte) main::toD0182_$5 = >main::toD0182_$4
 Successful SSA optimization Pass2ConstantIdentification
-Resolved ranged next value [47] init_squares::i#1 ← ++ init_squares::i#2 to ++
-Resolved ranged comparison value [48] if(init_squares::i#1!=rangelast(0,init_squares::$2)) goto init_squares::@1 to (const byte) init_squares::$2+(number) 1
-Adding number conversion cast (unumber) init_squares::$2+1 in if((byte) init_squares::i#1!=(const byte) init_squares::$2+(number) 1) goto init_squares::@1
-Adding number conversion cast (unumber) 1 in if((byte) init_squares::i#1!=(unumber)(const byte) init_squares::$2+(number) 1) goto init_squares::@1
-Successful SSA optimization PassNAddNumberTypeConversions
-Simplifying constant integer cast (const byte) init_squares::$2+(unumber)(number) 1
-Simplifying constant integer cast 1
-Successful SSA optimization PassNCastSimplification
-Finalized unsigned number type (byte) 1
-Successful SSA optimization PassNFinalizeNumberTypeConversions
 Constant right-side identified [125] (word~) main::toD0181_$2 ← (const word) main::toD0181_$1 * (byte) 4
 Constant right-side identified [127] (byte~) main::toD0181_$6 ← (const byte) main::toD0181_$5 / (byte) 4
 Constant right-side identified [132] (word~) main::toD0182_$2 ← (const word) main::toD0182_$1 * (byte) 4
@@ -3723,7 +3729,7 @@ Inlining Noop Cast [155] (signed word) init_angle_screen::xw#0 ← (signed word)
 Inlining Noop Cast [158] (signed word) init_angle_screen::yw#0 ← (signed word)(word~) init_angle_screen::$8 keeping init_angle_screen::yw#0
 Successful SSA optimization Pass2NopCastInlining
 Rewriting multiplication to use shift [18] (byte~) bsearch16u::$16 ← (byte~) bsearch16u::$6 * (const byte) SIZEOF_WORD
-Rewriting multiplication to use shift [42] (byte~) init_squares::$3 ← (byte) init_squares::i#2 * (byte) 2
+Rewriting multiplication to use shift [43] (byte~) init_squares::$3 ← (byte) init_squares::i#2 * (byte) 2
 Rewriting multiplication to use shift [49] (byte~) sqr::$0 ← (byte) sqr::val#2 * (const byte) SIZEOF_WORD
 Rewriting division to use shift [58] (word~) sqrt::$1 ← (word~) sqrt::$3 / (const byte) SIZEOF_WORD
 Rewriting division to use shift [70] (word) atan2_16::angle#1 ← (word) atan2_16::angle#6 / (byte) 2
@@ -3820,14 +3826,12 @@ Constant inlined bsearch16u::$17 = (byte) 1*(const byte) SIZEOF_WORD
 Constant inlined bsearch16u::$18 = (byte) 1*(const byte) SIZEOF_WORD
 Constant inlined main::toD0182_screen#0 = (const byte*) SCREEN2
 Constant inlined heap_head#0 = (const byte*) HEAP_TOP
-Constant inlined init_squares::$2 = (const byte) NUM_SQUARES#3-(byte) 1
 Successful SSA optimization Pass2ConstantInlining
 Identical Phi Values (word) memset::num#2 (word) $3e8
 Successful SSA optimization Pass2IdenticalPhiElimination
 if() condition always false - eliminating [1] if((word) $3e8<=(byte) 0) goto memset::@1
 Successful SSA optimization Pass2ConstantIfs
 Added new block during phi lifting bsearch16u::@18(between bsearch16u::@9 and bsearch16u::@10)
-Added new block during phi lifting init_squares::@4(between init_squares::@1 and init_squares::@1)
 Added new block during phi lifting atan2_16::@34(between atan2_16::@27 and atan2_16::@15)
 Added new block during phi lifting atan2_16::@35(between atan2_16::@15 and atan2_16::@17)
 Added new block during phi lifting atan2_16::@36(between atan2_16::@27 and atan2_16::@17)
@@ -3879,7 +3883,7 @@ Calls in [sqrt] to bsearch16u:297
 Calls in [init_squares] to malloc:337 
 
 Created 61 initial phi equivalence classes
-Coalesced [7] heap_head#58 ← heap_head#1
+Coalesced [7] heap_head#59 ← heap_head#1
 Coalesced [25] sin_offset_x#32 ← sin_offset_x#14
 Coalesced [26] sin_offset_y#32 ← sin_offset_y#14
 Coalesced [32] sin_offset_x#33 ← sin_offset_x#12
@@ -3967,11 +3971,11 @@ Coalesced [328] bsearch16u::num#9 ← bsearch16u::num#0
 Coalesced [329] bsearch16u::items#11 ← bsearch16u::items#8
 Coalesced [330] bsearch16u::num#11 ← bsearch16u::num#3
 Coalesced (already) [331] bsearch16u::items#13 ← bsearch16u::items#2
-Coalesced (already) [336] heap_head#59 ← heap_head#1
-Coalesced [340] init_squares::squares#4 ← init_squares::squares#0
-Coalesced [350] init_squares::sqr#3 ← init_squares::sqr#1
-Coalesced [351] init_squares::squares#3 ← init_squares::squares#1
-Coalesced [352] init_squares::i#3 ← init_squares::i#1
+Coalesced (already) [336] heap_head#60 ← heap_head#1
+Coalesced [340] init_squares::squares#5 ← init_squares::squares#0
+Coalesced [350] init_squares::i#4 ← init_squares::i#1
+Coalesced [351] init_squares::sqr#4 ← init_squares::sqr#1
+Coalesced [352] init_squares::squares#4 ← init_squares::squares#1
 Not coalescing [355] heap_head#1 ← malloc::mem#0
 Coalesced down to 47 phi equivalence classes
 Culled Empty Block (label) @9
@@ -4003,7 +4007,6 @@ Culled Empty Block (label) atan2_16::@37
 Culled Empty Block (label) init_dist_screen::@23
 Culled Empty Block (label) bsearch16u::@1
 Culled Empty Block (label) bsearch16u::@18
-Culled Empty Block (label) init_squares::@4
 Renumbering block @48 to @1
 Renumbering block @53 to @2
 Renumbering block @54 to @3
@@ -4020,7 +4023,7 @@ Renumbering block bsearch16u::@9 to bsearch16u::@6
 Renumbering block bsearch16u::@10 to bsearch16u::@7
 Renumbering block bsearch16u::@13 to bsearch16u::@8
 Renumbering block bsearch16u::@15 to bsearch16u::@9
-Renumbering block init_squares::@3 to init_squares::@2
+Renumbering block init_squares::@7 to init_squares::@3
 Renumbering block sqrt::@2 to sqrt::@1
 Renumbering block atan2_16::@13 to atan2_16::@9
 Renumbering block atan2_16::@15 to atan2_16::@10
@@ -4598,26 +4601,28 @@ sqr::@return: scope:[sqr]  from sqr
 init_squares: scope:[init_squares]  from init_dist_screen
   [242] phi()
   [243] call malloc 
-  to:init_squares::@2
-init_squares::@2: scope:[init_squares]  from init_squares
+  to:init_squares::@3
+init_squares::@3: scope:[init_squares]  from init_squares
   [244] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0
   [245] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1
   to:init_squares::@1
-init_squares::@1: scope:[init_squares]  from init_squares::@1 init_squares::@2
-  [246] (byte) init_squares::i#2 ← phi( init_squares::@1/(byte) init_squares::i#1 init_squares::@2/(byte) 0 )
-  [246] (word*) init_squares::squares#2 ← phi( init_squares::@1/(word*) init_squares::squares#1 init_squares::@2/(word*) init_squares::squares#0 )
-  [246] (word) init_squares::sqr#2 ← phi( init_squares::@1/(word) init_squares::sqr#1 init_squares::@2/(word) 0 )
-  [247] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
-  [248] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
-  [249] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1
-  [250] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
-  [251] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4
-  [252] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2
-  [253] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1
+init_squares::@1: scope:[init_squares]  from init_squares::@2 init_squares::@3
+  [246] (word*) init_squares::squares#2 ← phi( init_squares::@2/(word*) init_squares::squares#1 init_squares::@3/(word*) init_squares::squares#0 )
+  [246] (word) init_squares::sqr#2 ← phi( init_squares::@2/(word) init_squares::sqr#1 init_squares::@3/(word) 0 )
+  [246] (byte) init_squares::i#2 ← phi( init_squares::@2/(byte) init_squares::i#1 init_squares::@3/(byte) 0 )
+  [247] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2
   to:init_squares::@return
 init_squares::@return: scope:[init_squares]  from init_squares::@1
-  [254] return 
+  [248] return 
   to:@return
+init_squares::@2: scope:[init_squares]  from init_squares::@1
+  [249] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
+  [250] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
+  [251] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1
+  [252] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
+  [253] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4
+  [254] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2
+  to:init_squares::@1
 
 (void*()) malloc((word) malloc::size)
 malloc: scope:[malloc]  from @1 @3 init_squares
@@ -4824,15 +4829,15 @@ VARIABLE REGISTER WEIGHTS
 (byte~) init_squares::$3 22.0
 (byte~) init_squares::$4 22.0
 (byte) init_squares::i
-(byte) init_squares::i#1 16.5
-(byte) init_squares::i#2 5.5
+(byte) init_squares::i#1 22.0
+(byte) init_squares::i#2 6.285714285714286
 (word) init_squares::sqr
-(word) init_squares::sqr#1 7.333333333333333
-(word) init_squares::sqr#2 6.6000000000000005
+(word) init_squares::sqr#1 11.0
+(word) init_squares::sqr#2 5.5
 (word*) init_squares::squares
 (word*) init_squares::squares#0 4.0
-(word*) init_squares::squares#1 3.6666666666666665
-(word*) init_squares::squares#2 17.5
+(word*) init_squares::squares#1 4.4
+(word*) init_squares::squares#2 11.666666666666666
 (void()) main()
 (byte*) main::toD0181_gfx
 (byte) main::toD0181_return
@@ -4966,9 +4971,9 @@ Initial phi equivalence classes
 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 ]
 [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ]
 [ sqr::val#2 sqr::val#1 sqr::val#0 ]
+[ init_squares::i#2 init_squares::i#1 ]
 [ init_squares::sqr#2 init_squares::sqr#1 ]
 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ]
-[ init_squares::i#2 init_squares::i#1 ]
 [ heap_head#12 heap_head#1 ]
 [ malloc::size#3 ]
 Added variable SCREEN_DIST#0 to live range equivalence class [ SCREEN_DIST#0 ]
@@ -5069,9 +5074,9 @@ Complete equivalence classes
 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 ]
 [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ]
 [ sqr::val#2 sqr::val#1 sqr::val#0 ]
+[ init_squares::i#2 init_squares::i#1 ]
 [ init_squares::sqr#2 init_squares::sqr#1 ]
 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ]
-[ init_squares::i#2 init_squares::i#1 ]
 [ heap_head#12 heap_head#1 ]
 [ malloc::size#3 ]
 [ SCREEN_DIST#0 ]
@@ -5171,9 +5176,9 @@ Allocated zp[1]:53 [ init_dist_screen::xd#0 init_dist_screen::$16 init_dist_scre
 Allocated zp[2]:54 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 ]
 Allocated zp[1]:56 [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ]
 Allocated zp[1]:57 [ sqr::val#2 sqr::val#1 sqr::val#0 ]
-Allocated zp[2]:58 [ init_squares::sqr#2 init_squares::sqr#1 ]
-Allocated zp[2]:60 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ]
-Allocated zp[1]:62 [ init_squares::i#2 init_squares::i#1 ]
+Allocated zp[1]:58 [ init_squares::i#2 init_squares::i#1 ]
+Allocated zp[2]:59 [ init_squares::sqr#2 init_squares::sqr#1 ]
+Allocated zp[2]:61 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ]
 Allocated zp[2]:63 [ heap_head#12 heap_head#1 ]
 Allocated zp[2]:65 [ malloc::size#3 ]
 Allocated zp[2]:67 [ SCREEN_DIST#0 ]
@@ -6968,9 +6973,9 @@ sqr: {
 init_squares: {
     .label __3 = $9a
     .label __4 = $9b
-    .label squares = $3c
-    .label sqr = $3a
-    .label i = $3e
+    .label squares = $3d
+    .label sqr = $3b
+    .label i = $3a
     // [243] call malloc 
     // [255] phi from init_squares to malloc [phi:init_squares->malloc]
   malloc_from_init_squares:
@@ -6981,9 +6986,9 @@ init_squares: {
     sta.z malloc.size+1
     // [255] phi (byte*) heap_head#12 = (byte*) heap_head#1 [phi:init_squares->malloc#1] -- register_copy 
     jsr malloc
-    jmp __b2
-    // init_squares::@2
-  __b2:
+    jmp __b3
+    // init_squares::@3
+  __b3:
     // [244] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0 -- pvoz1=pvoz2 
     lda.z malloc.mem
     sta.z SQUARES
@@ -6994,34 +6999,39 @@ init_squares: {
     sta.z squares
     lda.z SQUARES+1
     sta.z squares+1
-    // [246] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
-  __b1_from___b2:
-    // [246] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@2->init_squares::@1#0] -- vbuz1=vbuc1 
-    lda #0
-    sta.z i
-    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
-    // [246] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@2->init_squares::@1#2] -- vwuz1=vwuc1 
+    // [246] phi from init_squares::@3 to init_squares::@1 [phi:init_squares::@3->init_squares::@1]
+  __b1_from___b3:
+    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@3->init_squares::@1#0] -- register_copy 
+    // [246] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@3->init_squares::@1#1] -- vwuz1=vwuc1 
     lda #<0
     sta.z sqr
     lda #>0
     sta.z sqr+1
-    jmp __b1
-    // [246] phi from init_squares::@1 to init_squares::@1 [phi:init_squares::@1->init_squares::@1]
-  __b1_from___b1:
-    // [246] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@1->init_squares::@1#0] -- register_copy 
-    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@1->init_squares::@1#1] -- register_copy 
-    // [246] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@1->init_squares::@1#2] -- register_copy 
+    // [246] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@3->init_squares::@1#2] -- vbuz1=vbuc1 
+    lda #0
+    sta.z i
     jmp __b1
     // init_squares::@1
   __b1:
-    // [247] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
+    // [247] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2 -- vbuz1_lt_vbuc1_then_la1 
+    lda.z i
+    cmp #NUM_SQUARES
+    bcc __b2
+    jmp __breturn
+    // init_squares::@return
+  __breturn:
+    // [248] return 
+    rts
+    // init_squares::@2
+  __b2:
+    // [249] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
     ldy #0
     lda.z sqr
     sta (squares),y
     iny
     lda.z sqr+1
     sta (squares),y
-    // [248] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
+    // [250] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
     lda #SIZEOF_WORD
     clc
     adc.z squares
@@ -7029,15 +7039,15 @@ init_squares: {
     bcc !+
     inc.z squares+1
   !:
-    // [249] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuz1=vbuz2_rol_1 
+    // [251] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuz1=vbuz2_rol_1 
     lda.z i
     asl
     sta.z __3
-    // [250] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuz1=vbuz2_plus_1 
+    // [252] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuz1=vbuz2_plus_1 
     ldy.z __3
     iny
     sty.z __4
-    // [251] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuz2 
+    // [253] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuz2 
     lda.z __4
     clc
     adc.z sqr
@@ -7045,17 +7055,14 @@ init_squares: {
     bcc !+
     inc.z sqr+1
   !:
-    // [252] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuz1=_inc_vbuz1 
+    // [254] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuz1=_inc_vbuz1 
     inc.z i
-    // [253] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1 -- vbuz1_neq_vbuc1_then_la1 
-    lda #NUM_SQUARES-1+1
-    cmp.z i
-    bne __b1_from___b1
-    jmp __breturn
-    // init_squares::@return
-  __breturn:
-    // [254] return 
-    rts
+    // [246] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
+  __b1_from___b2:
+    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@2->init_squares::@1#0] -- register_copy 
+    // [246] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
+    // [246] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@2->init_squares::@1#2] -- register_copy 
+    jmp __b1
 }
   // malloc
 // Allocates a block of size bytes of memory, returning a pointer to the beginning of the block.
@@ -7247,12 +7254,12 @@ Statement [239] (byte~) sqr::$0 ← (byte) sqr::val#2 << (byte) 1 [ SQUARES#1 sq
 Statement [240] (word) sqr::return#0 ← *((word*)(void*) SQUARES#1 + (byte~) sqr::$0) [ sqr::return#0 SQUARES#1 ] ( main:7::init_dist_screen:10::sqr:179 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 sqr::return#0 SQUARES#1 ] main:7::init_dist_screen:10::sqr:194 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 sqr::return#0 SQUARES#1 ] ) always clobbers reg byte a reg byte y 
 Statement [244] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0 [ SQUARES#1 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 ] ) always clobbers reg byte a 
 Statement [245] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1 [ SQUARES#1 init_squares::squares#0 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::squares#0 ] ) always clobbers reg byte a 
-Statement [247] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ) always clobbers reg byte a reg byte y 
-Removing always clobbered register reg byte a as potential for zp[1]:62 [ init_squares::i#2 init_squares::i#1 ]
-Removing always clobbered register reg byte y as potential for zp[1]:62 [ init_squares::i#2 init_squares::i#1 ]
-Statement [248] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ) always clobbers reg byte a 
-Statement [249] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
-Statement [251] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [249] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ) always clobbers reg byte a reg byte y 
+Removing always clobbered register reg byte a as potential for zp[1]:58 [ init_squares::i#2 init_squares::i#1 ]
+Removing always clobbered register reg byte y as potential for zp[1]:58 [ init_squares::i#2 init_squares::i#1 ]
+Statement [250] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [251] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
+Statement [253] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
 Statement [256] (byte*) malloc::mem#0 ← (byte*) heap_head#12 - (word) malloc::size#3 [ malloc::mem#0 ] ( malloc:2 [ malloc::mem#0 ] malloc:4 [ malloc::mem#0 ] main:7::init_dist_screen:10::init_squares:171::malloc:243 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 malloc::mem#0 ] ) always clobbers reg byte a 
 Statement [257] (byte*) heap_head#1 ← (byte*) malloc::mem#0 [ malloc::mem#0 heap_head#1 ] ( malloc:2 [ malloc::mem#0 heap_head#1 ] malloc:4 [ malloc::mem#0 heap_head#1 ] main:7::init_dist_screen:10::init_squares:171::malloc:243 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 malloc::mem#0 heap_head#1 ] ) always clobbers reg byte a 
 Statement [3] (void*) SCREEN_DIST#0 ← (void*)(byte*) malloc::mem#0 [ SCREEN_DIST#0 heap_head#1 ] (  [ SCREEN_DIST#0 heap_head#1 ] ) always clobbers reg byte a 
@@ -7375,10 +7382,10 @@ Statement [239] (byte~) sqr::$0 ← (byte) sqr::val#2 << (byte) 1 [ SQUARES#1 sq
 Statement [240] (word) sqr::return#0 ← *((word*)(void*) SQUARES#1 + (byte~) sqr::$0) [ sqr::return#0 SQUARES#1 ] ( main:7::init_dist_screen:10::sqr:179 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 sqr::return#0 SQUARES#1 ] main:7::init_dist_screen:10::sqr:194 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 sqr::return#0 SQUARES#1 ] ) always clobbers reg byte a reg byte y 
 Statement [244] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0 [ SQUARES#1 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 ] ) always clobbers reg byte a 
 Statement [245] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1 [ SQUARES#1 init_squares::squares#0 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::squares#0 ] ) always clobbers reg byte a 
-Statement [247] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ) always clobbers reg byte a reg byte y 
-Statement [248] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ) always clobbers reg byte a 
-Statement [249] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
-Statement [251] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [249] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ) always clobbers reg byte a reg byte y 
+Statement [250] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [251] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
+Statement [253] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
 Statement [256] (byte*) malloc::mem#0 ← (byte*) heap_head#12 - (word) malloc::size#3 [ malloc::mem#0 ] ( malloc:2 [ malloc::mem#0 ] malloc:4 [ malloc::mem#0 ] main:7::init_dist_screen:10::init_squares:171::malloc:243 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 malloc::mem#0 ] ) always clobbers reg byte a 
 Statement [257] (byte*) heap_head#1 ← (byte*) malloc::mem#0 [ malloc::mem#0 heap_head#1 ] ( malloc:2 [ malloc::mem#0 heap_head#1 ] malloc:4 [ malloc::mem#0 heap_head#1 ] main:7::init_dist_screen:10::init_squares:171::malloc:243 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 malloc::mem#0 heap_head#1 ] ) always clobbers reg byte a 
 Statement [3] (void*) SCREEN_DIST#0 ← (void*)(byte*) malloc::mem#0 [ SCREEN_DIST#0 heap_head#1 ] (  [ SCREEN_DIST#0 heap_head#1 ] ) always clobbers reg byte a 
@@ -7500,10 +7507,10 @@ Statement [239] (byte~) sqr::$0 ← (byte) sqr::val#2 << (byte) 1 [ SQUARES#1 sq
 Statement [240] (word) sqr::return#0 ← *((word*)(void*) SQUARES#1 + (byte~) sqr::$0) [ sqr::return#0 SQUARES#1 ] ( main:7::init_dist_screen:10::sqr:179 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 sqr::return#0 SQUARES#1 ] main:7::init_dist_screen:10::sqr:194 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 sqr::return#0 SQUARES#1 ] ) always clobbers reg byte a reg byte y 
 Statement [244] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0 [ SQUARES#1 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 ] ) always clobbers reg byte a 
 Statement [245] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1 [ SQUARES#1 init_squares::squares#0 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::squares#0 ] ) always clobbers reg byte a 
-Statement [247] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ) always clobbers reg byte a reg byte y 
-Statement [248] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ) always clobbers reg byte a 
-Statement [249] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
-Statement [251] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [249] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ) always clobbers reg byte a reg byte y 
+Statement [250] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [251] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
+Statement [253] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
 Statement [256] (byte*) malloc::mem#0 ← (byte*) heap_head#12 - (word) malloc::size#3 [ malloc::mem#0 ] ( malloc:2 [ malloc::mem#0 ] malloc:4 [ malloc::mem#0 ] main:7::init_dist_screen:10::init_squares:171::malloc:243 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 malloc::mem#0 ] ) always clobbers reg byte a 
 Statement [257] (byte*) heap_head#1 ← (byte*) malloc::mem#0 [ malloc::mem#0 heap_head#1 ] ( malloc:2 [ malloc::mem#0 heap_head#1 ] malloc:4 [ malloc::mem#0 heap_head#1 ] main:7::init_dist_screen:10::init_squares:171::malloc:243 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 malloc::mem#0 heap_head#1 ] ) always clobbers reg byte a 
 Potential registers zp[1]:2 [ sin_offset_x#10 sin_offset_x#14 sin_offset_x#12 ] : zp[1]:2 , 
@@ -7544,9 +7551,9 @@ Potential registers zp[1]:53 [ init_dist_screen::xd#0 init_dist_screen::$16 init
 Potential registers zp[2]:54 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 ] : zp[2]:54 , 
 Potential registers zp[1]:56 [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ] : zp[1]:56 , reg byte x , 
 Potential registers zp[1]:57 [ sqr::val#2 sqr::val#1 sqr::val#0 ] : zp[1]:57 , reg byte a , reg byte x , reg byte y , 
-Potential registers zp[2]:58 [ init_squares::sqr#2 init_squares::sqr#1 ] : zp[2]:58 , 
-Potential registers zp[2]:60 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] : zp[2]:60 , 
-Potential registers zp[1]:62 [ init_squares::i#2 init_squares::i#1 ] : zp[1]:62 , reg byte x , 
+Potential registers zp[1]:58 [ init_squares::i#2 init_squares::i#1 ] : zp[1]:58 , reg byte x , 
+Potential registers zp[2]:59 [ init_squares::sqr#2 init_squares::sqr#1 ] : zp[2]:59 , 
+Potential registers zp[2]:61 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] : zp[2]:61 , 
 Potential registers zp[2]:63 [ heap_head#12 heap_head#1 ] : zp[2]:63 , 
 Potential registers zp[2]:65 [ malloc::size#3 ] : zp[2]:65 , 
 Potential registers zp[2]:67 [ SCREEN_DIST#0 ] : zp[2]:67 , 
@@ -7619,7 +7626,7 @@ Uplift Scope [init_angle_screen] 220.36: zp[1]:30 [ init_angle_screen::xb#2 init
 Uplift Scope [init_dist_screen] 707: zp[1]:53 [ init_dist_screen::xd#0 init_dist_screen::$16 init_dist_screen::$14 ] 221.24: zp[1]:52 [ init_dist_screen::xb#2 init_dist_screen::xb#1 ] 202: zp[1]:121 [ init_dist_screen::x2#0 ] 202: zp[2]:124 [ init_dist_screen::xds#0 ] 202: zp[2]:126 [ init_dist_screen::ds#0 ] 131.3: zp[1]:51 [ init_dist_screen::x#2 init_dist_screen::x#1 ] 126.25: zp[1]:131 [ init_dist_screen::d#0 ] 77: zp[1]:50 [ init_dist_screen::yd#0 init_dist_screen::$7 init_dist_screen::$5 ] 22: zp[1]:116 [ init_dist_screen::y2#0 ] 18.18: zp[2]:48 [ init_dist_screen::screen_bottomline#11 init_dist_screen::screen_bottomline#0 init_dist_screen::screen_bottomline#1 ] 17.47: zp[1]:45 [ init_dist_screen::y#10 init_dist_screen::y#1 ] 14.06: zp[2]:46 [ init_dist_screen::screen_topline#11 init_dist_screen::screen#0 init_dist_screen::screen_topline#1 ] 4.87: zp[2]:119 [ init_dist_screen::yds#0 ] 
 Uplift Scope [sqr] 338: zp[1]:57 [ sqr::val#2 sqr::val#1 sqr::val#0 ] 202: zp[2]:122 [ sqr::return#3 ] 28.5: zp[2]:150 [ sqr::return#0 ] 22: zp[2]:117 [ sqr::return#2 ] 4: zp[1]:149 [ sqr::$0 ] 
 Uplift Scope [sqrt] 202: zp[1]:130 [ sqrt::return#2 ] 103: zp[2]:128 [ sqrt::val#0 ] 34.33: zp[1]:142 [ sqrt::return#0 ] 4: zp[2]:136 [ sqrt::found#0 ] 4: zp[2]:138 [ sqrt::$3 ] 2: zp[2]:140 [ sqrt::$1 ] 
-Uplift Scope [init_squares] 25.17: zp[2]:60 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] 22: zp[1]:62 [ init_squares::i#2 init_squares::i#1 ] 22: zp[1]:154 [ init_squares::$3 ] 22: zp[1]:155 [ init_squares::$4 ] 13.93: zp[2]:58 [ init_squares::sqr#2 init_squares::sqr#1 ] 
+Uplift Scope [init_squares] 28.29: zp[1]:58 [ init_squares::i#2 init_squares::i#1 ] 22: zp[1]:154 [ init_squares::$3 ] 22: zp[1]:155 [ init_squares::$4 ] 20.07: zp[2]:61 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] 16.5: zp[2]:59 [ init_squares::sqr#2 init_squares::sqr#1 ] 
 Uplift Scope [] 21.83: zp[2]:19 [ print_char_cursor#18 print_char_cursor#30 print_char_cursor#1 ] 15.53: zp[1]:3 [ sin_offset_y#10 sin_offset_y#14 sin_offset_y#12 ] 15.29: zp[1]:2 [ sin_offset_x#10 sin_offset_x#14 sin_offset_x#12 ] 6.6: zp[2]:63 [ heap_head#12 heap_head#1 ] 0.05: zp[2]:69 [ SCREEN_ANGLE#0 ] 0.05: zp[2]:67 [ SCREEN_DIST#0 ] 0.03: zp[2]:152 [ SQUARES#1 ] 
 Uplift Scope [memset] 41.33: zp[2]:15 [ memset::dst#2 memset::dst#4 memset::dst#1 ] 2.17: zp[2]:78 [ memset::end#0 ] 1.57: zp[1]:14 [ memset::c#4 ] 0: zp[2]:12 [ memset::str#3 ] 
 Uplift Scope [malloc] 2: zp[2]:65 [ malloc::size#3 ] 0.67: zp[2]:156 [ malloc::mem#0 ] 
@@ -7642,7 +7649,7 @@ Uplifting [init_dist_screen] best 1348318 combination reg byte a [ init_dist_scr
 Limited combination testing to 100 combinations of 6144 possible.
 Uplifting [sqr] best 1347981 combination reg byte a [ sqr::val#2 sqr::val#1 sqr::val#0 ] zp[2]:122 [ sqr::return#3 ] zp[2]:150 [ sqr::return#0 ] zp[2]:117 [ sqr::return#2 ] reg byte a [ sqr::$0 ] 
 Uplifting [sqrt] best 1347078 combination reg byte a [ sqrt::return#2 ] zp[2]:128 [ sqrt::val#0 ] reg byte a [ sqrt::return#0 ] zp[2]:136 [ sqrt::found#0 ] zp[2]:138 [ sqrt::$3 ] zp[2]:140 [ sqrt::$1 ] 
-Uplifting [init_squares] best 1346878 combination zp[2]:60 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] reg byte x [ init_squares::i#2 init_squares::i#1 ] reg byte a [ init_squares::$3 ] reg byte a [ init_squares::$4 ] zp[2]:58 [ init_squares::sqr#2 init_squares::sqr#1 ] 
+Uplifting [init_squares] best 1346878 combination reg byte x [ init_squares::i#2 init_squares::i#1 ] reg byte a [ init_squares::$3 ] reg byte a [ init_squares::$4 ] zp[2]:61 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] zp[2]:59 [ init_squares::sqr#2 init_squares::sqr#1 ] 
 Uplifting [] best 1346878 combination zp[2]:19 [ print_char_cursor#18 print_char_cursor#30 print_char_cursor#1 ] zp[1]:3 [ sin_offset_y#10 sin_offset_y#14 sin_offset_y#12 ] zp[1]:2 [ sin_offset_x#10 sin_offset_x#14 sin_offset_x#12 ] zp[2]:63 [ heap_head#12 heap_head#1 ] zp[2]:69 [ SCREEN_ANGLE#0 ] zp[2]:67 [ SCREEN_DIST#0 ] zp[2]:152 [ SQUARES#1 ] 
 Uplifting [memset] best 1346862 combination zp[2]:15 [ memset::dst#2 memset::dst#4 memset::dst#1 ] zp[2]:78 [ memset::end#0 ] reg byte x [ memset::c#4 ] zp[2]:12 [ memset::str#3 ] 
 Uplifting [malloc] best 1346862 combination zp[2]:65 [ malloc::size#3 ] zp[2]:156 [ malloc::mem#0 ] 
@@ -7723,8 +7730,8 @@ Coalescing zero page register [ zp[1]:45 [ init_dist_screen::y#10 init_dist_scre
 Coalescing zero page register [ zp[2]:46 [ init_dist_screen::screen_topline#11 init_dist_screen::screen#0 init_dist_screen::screen_topline#1 ] ] with [ zp[2]:25 [ init_angle_screen::screen_topline#6 init_angle_screen::screen_topline#0 init_angle_screen::screen_topline#1 ] ]
 Coalescing zero page register [ zp[2]:48 [ init_dist_screen::screen_bottomline#11 init_dist_screen::screen_bottomline#0 init_dist_screen::screen_bottomline#1 ] ] with [ zp[2]:27 [ init_angle_screen::screen_bottomline#6 init_angle_screen::screen_bottomline#0 init_angle_screen::screen_bottomline#1 init_angle_screen::screen#0 ] ]
 Coalescing zero page register [ zp[2]:54 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 bsearch16u::return#3 sqrt::found#0 sqrt::$3 sqrt::$1 ] ] with [ zp[2]:31 [ atan2_16::yi#3 atan2_16::yi#8 atan2_16::yi#0 atan2_16::yi#16 atan2_16::$2 atan2_16::yi#1 atan2_16::yi#2 ] ]
-Coalescing zero page register [ zp[2]:58 [ init_squares::sqr#2 init_squares::sqr#1 ] ] with [ zp[2]:33 [ atan2_16::xi#3 atan2_16::xi#8 atan2_16::xi#0 atan2_16::xi#13 atan2_16::$7 atan2_16::xi#1 atan2_16::xi#2 ] ]
-Coalescing zero page register [ zp[2]:60 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] ] with [ zp[2]:36 [ atan2_16::angle#6 atan2_16::angle#12 atan2_16::angle#13 atan2_16::angle#2 atan2_16::angle#3 atan2_16::return#0 atan2_16::angle#5 atan2_16::angle#11 atan2_16::angle#1 atan2_16::angle#4 atan2_16::return#2 init_angle_screen::angle_w#0 init_angle_screen::$11 ] ]
+Coalescing zero page register [ zp[2]:59 [ init_squares::sqr#2 init_squares::sqr#1 ] ] with [ zp[2]:33 [ atan2_16::xi#3 atan2_16::xi#8 atan2_16::xi#0 atan2_16::xi#13 atan2_16::$7 atan2_16::xi#1 atan2_16::xi#2 ] ]
+Coalescing zero page register [ zp[2]:61 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] ] with [ zp[2]:36 [ atan2_16::angle#6 atan2_16::angle#12 atan2_16::angle#13 atan2_16::angle#2 atan2_16::angle#3 atan2_16::return#0 atan2_16::angle#5 atan2_16::angle#11 atan2_16::angle#1 atan2_16::angle#4 atan2_16::return#2 init_angle_screen::angle_w#0 init_angle_screen::$11 ] ]
 Coalescing zero page register [ zp[2]:63 [ heap_head#12 heap_head#1 ] ] with [ zp[2]:41 [ atan2_16::yd#5 atan2_16::yd#3 atan2_16::yd#10 atan2_16::yd#1 atan2_16::yd#2 ] ]
 Coalescing zero page register [ zp[2]:65 [ malloc::size#3 malloc::mem#0 SQUARES#1 ] ] with [ zp[2]:43 [ atan2_16::xd#5 atan2_16::xd#3 atan2_16::xd#10 atan2_16::xd#1 atan2_16::xd#2 ] ]
 Coalescing zero page register [ zp[2]:78 [ memset::end#0 ] ] with [ zp[2]:73 [ doplasma::sin_x#0 ] ]
@@ -7737,9 +7744,9 @@ Coalescing zero page register [ zp[1]:45 [ init_dist_screen::y#10 init_dist_scre
 Coalescing zero page register [ zp[2]:46 [ init_dist_screen::screen_topline#11 init_dist_screen::screen#0 init_dist_screen::screen_topline#1 init_angle_screen::screen_topline#6 init_angle_screen::screen_topline#0 init_angle_screen::screen_topline#1 ] ] with [ zp[2]:12 [ memset::str#3 memset::dst#2 memset::dst#4 memset::dst#1 doplasma::angle#4 doplasma::angle#0 doplasma::angle#1 ] ]
 Coalescing zero page register [ zp[2]:48 [ init_dist_screen::screen_bottomline#11 init_dist_screen::screen_bottomline#0 init_dist_screen::screen_bottomline#1 init_angle_screen::screen_bottomline#6 init_angle_screen::screen_bottomline#0 init_angle_screen::screen_bottomline#1 init_angle_screen::screen#0 ] ] with [ zp[2]:17 [ make_plasma_charset::c#2 make_plasma_charset::c#1 doplasma::dist#4 doplasma::dist#0 doplasma::dist#1 ] ]
 Coalescing zero page register [ zp[2]:54 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 bsearch16u::return#3 sqrt::found#0 sqrt::$3 sqrt::$1 atan2_16::yi#3 atan2_16::yi#8 atan2_16::yi#0 atan2_16::yi#16 atan2_16::$2 atan2_16::yi#1 atan2_16::yi#2 ] ] with [ zp[2]:19 [ print_char_cursor#18 print_char_cursor#30 print_char_cursor#1 doplasma::screen#5 doplasma::screen#6 doplasma::screen#2 ] ]
-Coalescing zero page register [ zp[2]:78 [ memset::end#0 doplasma::sin_x#0 ] ] with [ zp[2]:58 [ init_squares::sqr#2 init_squares::sqr#1 atan2_16::xi#3 atan2_16::xi#8 atan2_16::xi#0 atan2_16::xi#13 atan2_16::$7 atan2_16::xi#1 atan2_16::xi#2 ] ]
+Coalescing zero page register [ zp[2]:78 [ memset::end#0 doplasma::sin_x#0 ] ] with [ zp[2]:59 [ init_squares::sqr#2 init_squares::sqr#1 atan2_16::xi#3 atan2_16::xi#8 atan2_16::xi#0 atan2_16::xi#13 atan2_16::$7 atan2_16::xi#1 atan2_16::xi#2 ] ]
 Coalescing zero page register [ zp[1]:81 [ make_plasma_charset::s#0 init_dist_screen::x#2 init_dist_screen::x#1 ] ] with [ zp[1]:24 [ init_angle_screen::y#5 init_angle_screen::y#1 sin_offset_y#10 sin_offset_y#14 sin_offset_y#12 ] ]
-Coalescing zero page register [ zp[2]:83 [ make_plasma_charset::$10 make_plasma_charset::$11 make_plasma_charset::$16 doplasma::sin_y#0 ] ] with [ zp[2]:60 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 atan2_16::angle#6 atan2_16::angle#12 atan2_16::angle#13 atan2_16::angle#2 atan2_16::angle#3 atan2_16::return#0 atan2_16::angle#5 atan2_16::angle#11 atan2_16::angle#1 atan2_16::angle#4 atan2_16::return#2 init_angle_screen::angle_w#0 init_angle_screen::$11 ] ]
+Coalescing zero page register [ zp[2]:83 [ make_plasma_charset::$10 make_plasma_charset::$11 make_plasma_charset::$16 doplasma::sin_y#0 ] ] with [ zp[2]:61 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 atan2_16::angle#6 atan2_16::angle#12 atan2_16::angle#13 atan2_16::angle#2 atan2_16::angle#3 atan2_16::return#0 atan2_16::angle#5 atan2_16::angle#11 atan2_16::angle#1 atan2_16::angle#4 atan2_16::return#2 init_angle_screen::angle_w#0 init_angle_screen::$11 ] ]
 Coalescing zero page register [ zp[1]:91 [ make_plasma_charset::$7 init_dist_screen::xb#2 init_dist_screen::xb#1 ] ] with [ zp[1]:29 [ init_angle_screen::x#2 init_angle_screen::x#1 doplasma::y#4 doplasma::y#1 ] ]
 Coalescing zero page register [ zp[2]:145 [ bsearch16u::pivot#0 ] ] with [ zp[2]:63 [ heap_head#12 heap_head#1 atan2_16::yd#5 atan2_16::yd#3 atan2_16::yd#10 atan2_16::yd#1 atan2_16::yd#2 ] ]
 Coalescing zero page register [ zp[2]:147 [ bsearch16u::result#0 ] ] with [ zp[2]:78 [ memset::end#0 doplasma::sin_x#0 init_squares::sqr#2 init_squares::sqr#1 atan2_16::xi#3 atan2_16::xi#8 atan2_16::xi#0 atan2_16::xi#13 atan2_16::$7 atan2_16::xi#1 atan2_16::xi#2 ] ]
@@ -9345,42 +9352,46 @@ init_squares: {
     sta.z malloc.size+1
     // [255] phi (byte*) heap_head#12 = (byte*) heap_head#1 [phi:init_squares->malloc#1] -- register_copy 
     jsr malloc
-    jmp __b2
-    // init_squares::@2
-  __b2:
+    jmp __b3
+    // init_squares::@3
+  __b3:
     // [244] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0
     // [245] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1 -- pwuz1=pwuz2 
     lda.z SQUARES
     sta.z squares
     lda.z SQUARES+1
     sta.z squares+1
-    // [246] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
-  __b1_from___b2:
-    // [246] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@2->init_squares::@1#0] -- vbuxx=vbuc1 
-    ldx #0
-    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
-    // [246] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@2->init_squares::@1#2] -- vwuz1=vwuc1 
+    // [246] phi from init_squares::@3 to init_squares::@1 [phi:init_squares::@3->init_squares::@1]
+  __b1_from___b3:
+    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@3->init_squares::@1#0] -- register_copy 
+    // [246] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@3->init_squares::@1#1] -- vwuz1=vwuc1 
     lda #<0
     sta.z sqr
     lda #>0
     sta.z sqr+1
-    jmp __b1
-    // [246] phi from init_squares::@1 to init_squares::@1 [phi:init_squares::@1->init_squares::@1]
-  __b1_from___b1:
-    // [246] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@1->init_squares::@1#0] -- register_copy 
-    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@1->init_squares::@1#1] -- register_copy 
-    // [246] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@1->init_squares::@1#2] -- register_copy 
+    // [246] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@3->init_squares::@1#2] -- vbuxx=vbuc1 
+    ldx #0
     jmp __b1
     // init_squares::@1
   __b1:
-    // [247] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
+    // [247] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2 -- vbuxx_lt_vbuc1_then_la1 
+    cpx #NUM_SQUARES
+    bcc __b2
+    jmp __breturn
+    // init_squares::@return
+  __breturn:
+    // [248] return 
+    rts
+    // init_squares::@2
+  __b2:
+    // [249] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
     ldy #0
     lda.z sqr
     sta (squares),y
     iny
     lda.z sqr+1
     sta (squares),y
-    // [248] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
+    // [250] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
     lda #SIZEOF_WORD
     clc
     adc.z squares
@@ -9388,29 +9399,27 @@ init_squares: {
     bcc !+
     inc.z squares+1
   !:
-    // [249] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1 
+    // [251] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1 
     txa
     asl
-    // [250] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuaa=vbuaa_plus_1 
+    // [252] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuaa=vbuaa_plus_1 
     clc
     adc #1
-    // [251] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuaa 
+    // [253] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuaa 
     clc
     adc.z sqr
     sta.z sqr
     bcc !+
     inc.z sqr+1
   !:
-    // [252] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuxx=_inc_vbuxx 
+    // [254] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuxx=_inc_vbuxx 
     inx
-    // [253] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1 -- vbuxx_neq_vbuc1_then_la1 
-    cpx #NUM_SQUARES-1+1
-    bne __b1_from___b1
-    jmp __breturn
-    // init_squares::@return
-  __breturn:
-    // [254] return 
-    rts
+    // [246] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
+  __b1_from___b2:
+    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@2->init_squares::@1#0] -- register_copy 
+    // [246] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
+    // [246] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@2->init_squares::@1#2] -- register_copy 
+    jmp __b1
 }
   // malloc
 // Allocates a block of size bytes of memory, returning a pointer to the beginning of the block.
@@ -9535,7 +9544,7 @@ Removing instruction jmp __b8
 Removing instruction jmp __b9
 Removing instruction jmp __b7
 Removing instruction jmp __breturn
-Removing instruction jmp __b2
+Removing instruction jmp __b3
 Removing instruction jmp __b1
 Removing instruction jmp __breturn
 Removing instruction jmp __breturn
@@ -9552,8 +9561,8 @@ Replacing instruction ldx #0 with TAX
 Removing instruction ldy.z x
 Removing instruction ldy.z xb
 Removing instruction lda.z result+1
-Replacing instruction lda #<0 with TXA
 Removing instruction lda #>0
+Replacing instruction ldx #0 with TAX
 Succesful ASM optimization Pass5UnnecesaryLoadElimination
 Replacing label __bbegin with __b1
 Replacing label __b1 with __b2
@@ -9580,7 +9589,6 @@ Replacing label __b2_from___b5 with __b2
 Replacing label __breturn_from___b8 with __b2
 Replacing label __b7_from___b6 with __b7
 Replacing label __b7_from___b6 with __b7
-Replacing label __b1_from___b1 with __b1
 Removing instruction __bbegin:
 Removing instruction __b1_from___bbegin:
 Removing instruction malloc_from___b1:
@@ -9645,7 +9653,6 @@ Removing instruction __breturn_from___b8:
 Removing instruction __breturn:
 Removing instruction __b7_from___b6:
 Removing instruction __b7_from___b9:
-Removing instruction __b1_from___b1:
 Succesful ASM optimization Pass5RedundantLabelElimination
 Removing instruction __b3:
 Removing instruction malloc_from___b3:
@@ -9719,9 +9726,10 @@ Removing instruction __b9:
 Removing instruction __b3_from___b7:
 Removing instruction __breturn:
 Removing instruction malloc_from_init_squares:
-Removing instruction __b2:
-Removing instruction __b1_from___b2:
+Removing instruction __b3:
+Removing instruction __b1_from___b3:
 Removing instruction __breturn:
+Removing instruction __b1_from___b2:
 Removing instruction __breturn:
 Succesful ASM optimization Pass5UnusedLabelElimination
 Replacing jump to rts with rts in jmp __b2
@@ -9734,7 +9742,6 @@ Removing instruction jmp __b1
 Removing instruction jmp __b2
 Removing instruction jmp __b1
 Removing instruction jmp __b1
-Removing instruction jmp __b1
 Succesful ASM optimization Pass5NextJumpElimination
 Fixing long branch [582] beq __b12 to bne
 Fixing long branch [476] bpl __b1 to bmi
@@ -10022,17 +10029,18 @@ FINAL SYMBOL TABLE
 (byte~) init_squares::$4 reg byte a 22.0
 (label) init_squares::@1
 (label) init_squares::@2
+(label) init_squares::@3
 (label) init_squares::@return
 (byte) init_squares::i
-(byte) init_squares::i#1 reg byte x 16.5
-(byte) init_squares::i#2 reg byte x 5.5
+(byte) init_squares::i#1 reg byte x 22.0
+(byte) init_squares::i#2 reg byte x 6.285714285714286
 (word) init_squares::sqr
-(word) init_squares::sqr#1 sqr zp[2]:26 7.333333333333333
-(word) init_squares::sqr#2 sqr zp[2]:26 6.6000000000000005
+(word) init_squares::sqr#1 sqr zp[2]:26 11.0
+(word) init_squares::sqr#2 sqr zp[2]:26 5.5
 (word*) init_squares::squares
 (word*) init_squares::squares#0 squares zp[2]:16 4.0
-(word*) init_squares::squares#1 squares zp[2]:16 3.6666666666666665
-(word*) init_squares::squares#2 squares zp[2]:16 17.5
+(word*) init_squares::squares#1 squares zp[2]:16 4.4
+(word*) init_squares::squares#2 squares zp[2]:16 11.666666666666666
 (void()) main()
 (label) main::@1
 (label) main::@2
@@ -10220,7 +10228,7 @@ reg byte a [ init_squares::$4 ]
 
 
 FINAL ASSEMBLER
-Score: 1210179
+Score: 1210209
 
   // File Comments
 // Plasma based on the distance/angle to the screen center
@@ -11735,7 +11743,7 @@ init_squares: {
     sta.z malloc.size+1
     // [255] phi (byte*) heap_head#12 = (byte*) heap_head#1 [phi:init_squares->malloc#1] -- register_copy 
     jsr malloc
-    // init_squares::@2
+    // init_squares::@3
     // malloc(NUM_SQUARES*sizeof(word))
     // [244] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0
     // squares = SQUARES
@@ -11744,22 +11752,28 @@ init_squares: {
     sta.z squares
     lda.z SQUARES+1
     sta.z squares+1
-    // [246] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
-    // [246] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@2->init_squares::@1#0] -- vbuxx=vbuc1 
-    ldx #0
-    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
-    // [246] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@2->init_squares::@1#2] -- vwuz1=vwuc1 
-    txa
+    // [246] phi from init_squares::@3 to init_squares::@1 [phi:init_squares::@3->init_squares::@1]
+    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@3->init_squares::@1#0] -- register_copy 
+    // [246] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@3->init_squares::@1#1] -- vwuz1=vwuc1 
+    lda #<0
     sta.z sqr
     sta.z sqr+1
-    // [246] phi from init_squares::@1 to init_squares::@1 [phi:init_squares::@1->init_squares::@1]
-    // [246] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@1->init_squares::@1#0] -- register_copy 
-    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@1->init_squares::@1#1] -- register_copy 
-    // [246] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@1->init_squares::@1#2] -- register_copy 
+    // [246] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@3->init_squares::@1#2] -- vbuxx=vbuc1 
+    tax
     // init_squares::@1
   __b1:
+    // for(byte i=0;i<NUM_SQUARES;i++)
+    // [247] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2 -- vbuxx_lt_vbuc1_then_la1 
+    cpx #NUM_SQUARES
+    bcc __b2
+    // init_squares::@return
+    // }
+    // [248] return 
+    rts
+    // init_squares::@2
+  __b2:
     // *squares++ = sqr
-    // [247] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
+    // [249] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
     ldy #0
     lda.z sqr
     sta (squares),y
@@ -11767,7 +11781,7 @@ init_squares: {
     lda.z sqr+1
     sta (squares),y
     // *squares++ = sqr;
-    // [248] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
+    // [250] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
     lda #SIZEOF_WORD
     clc
     adc.z squares
@@ -11776,31 +11790,29 @@ init_squares: {
     inc.z squares+1
   !:
     // i*2
-    // [249] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1 
+    // [251] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1 
     txa
     asl
     // i*2+1
-    // [250] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuaa=vbuaa_plus_1 
+    // [252] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuaa=vbuaa_plus_1 
     clc
     adc #1
     // sqr += i*2+1
-    // [251] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuaa 
+    // [253] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuaa 
     clc
     adc.z sqr
     sta.z sqr
     bcc !+
     inc.z sqr+1
   !:
-    // for( byte i: 0..NUM_SQUARES-1)
-    // [252] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuxx=_inc_vbuxx 
+    // for(byte i=0;i<NUM_SQUARES;i++)
+    // [254] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuxx=_inc_vbuxx 
     inx
-    // [253] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1 -- vbuxx_neq_vbuc1_then_la1 
-    cpx #NUM_SQUARES-1+1
-    bne __b1
-    // init_squares::@return
-    // }
-    // [254] return 
-    rts
+    // [246] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
+    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@2->init_squares::@1#0] -- register_copy 
+    // [246] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
+    // [246] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@2->init_squares::@1#2] -- register_copy 
+    jmp __b1
 }
   // malloc
 // Allocates a block of size bytes of memory, returning a pointer to the beginning of the block.
diff --git a/src/test/ref/plasma-center.sym b/src/test/ref/plasma-center.sym
index c3902e974..ffcf36a3e 100644
--- a/src/test/ref/plasma-center.sym
+++ b/src/test/ref/plasma-center.sym
@@ -279,17 +279,18 @@
 (byte~) init_squares::$4 reg byte a 22.0
 (label) init_squares::@1
 (label) init_squares::@2
+(label) init_squares::@3
 (label) init_squares::@return
 (byte) init_squares::i
-(byte) init_squares::i#1 reg byte x 16.5
-(byte) init_squares::i#2 reg byte x 5.5
+(byte) init_squares::i#1 reg byte x 22.0
+(byte) init_squares::i#2 reg byte x 6.285714285714286
 (word) init_squares::sqr
-(word) init_squares::sqr#1 sqr zp[2]:26 7.333333333333333
-(word) init_squares::sqr#2 sqr zp[2]:26 6.6000000000000005
+(word) init_squares::sqr#1 sqr zp[2]:26 11.0
+(word) init_squares::sqr#2 sqr zp[2]:26 5.5
 (word*) init_squares::squares
 (word*) init_squares::squares#0 squares zp[2]:16 4.0
-(word*) init_squares::squares#1 squares zp[2]:16 3.6666666666666665
-(word*) init_squares::squares#2 squares zp[2]:16 17.5
+(word*) init_squares::squares#1 squares zp[2]:16 4.4
+(word*) init_squares::squares#2 squares zp[2]:16 11.666666666666666
 (void()) main()
 (label) main::@1
 (label) main::@2
diff --git a/src/test/ref/screen-center-distance.asm b/src/test/ref/screen-center-distance.asm
index c98ce3fab..aae54c446 100644
--- a/src/test/ref/screen-center-distance.asm
+++ b/src/test/ref/screen-center-distance.asm
@@ -389,15 +389,19 @@ init_squares: {
     .label squares = 9
     .label sqr = 4
     jsr malloc
-    ldx #0
     lda #<SQUARES
     sta.z squares
     lda #>SQUARES
     sta.z squares+1
-    txa
+    lda #<0
     sta.z sqr
     sta.z sqr+1
+    tax
   __b1:
+    cpx #NUM_SQUARES
+    bcc __b2
+    rts
+  __b2:
     ldy #0
     lda.z sqr
     sta (squares),y
@@ -422,9 +426,7 @@ init_squares: {
     inc.z sqr+1
   !:
     inx
-    cpx #NUM_SQUARES-1+1
-    bne __b1
-    rts
+    jmp __b1
 }
 // Allocates a block of size bytes of memory, returning a pointer to the beginning of the block.
 // The content of the newly allocated block of memory is not initialized, remaining with indeterminate values.
diff --git a/src/test/ref/screen-center-distance.cfg b/src/test/ref/screen-center-distance.cfg
index b6e415448..61262de9a 100644
--- a/src/test/ref/screen-center-distance.cfg
+++ b/src/test/ref/screen-center-distance.cfg
@@ -262,21 +262,23 @@ init_squares: scope:[init_squares]  from init_dist_screen
   [119] phi()
   [120] call malloc 
   to:init_squares::@1
-init_squares::@1: scope:[init_squares]  from init_squares init_squares::@1
-  [121] (byte) init_squares::i#2 ← phi( init_squares::@1/(byte) init_squares::i#1 init_squares/(byte) 0 )
-  [121] (word*) init_squares::squares#2 ← phi( init_squares::@1/(word*) init_squares::squares#1 init_squares/(const word*) SQUARES#1 )
-  [121] (word) init_squares::sqr#2 ← phi( init_squares::@1/(word) init_squares::sqr#1 init_squares/(word) 0 )
-  [122] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
-  [123] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
-  [124] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1
-  [125] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
-  [126] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4
-  [127] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2
-  [128] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1
+init_squares::@1: scope:[init_squares]  from init_squares init_squares::@2
+  [121] (word*) init_squares::squares#2 ← phi( init_squares::@2/(word*) init_squares::squares#1 init_squares/(const word*) SQUARES#1 )
+  [121] (word) init_squares::sqr#2 ← phi( init_squares::@2/(word) init_squares::sqr#1 init_squares/(word) 0 )
+  [121] (byte) init_squares::i#2 ← phi( init_squares::@2/(byte) init_squares::i#1 init_squares/(byte) 0 )
+  [122] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2
   to:init_squares::@return
 init_squares::@return: scope:[init_squares]  from init_squares::@1
-  [129] return 
+  [123] return 
   to:@return
+init_squares::@2: scope:[init_squares]  from init_squares::@1
+  [124] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
+  [125] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
+  [126] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1
+  [127] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
+  [128] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4
+  [129] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2
+  to:init_squares::@1
 
 (void*()) malloc((word) malloc::size)
 malloc: scope:[malloc]  from init_squares
diff --git a/src/test/ref/screen-center-distance.log b/src/test/ref/screen-center-distance.log
index ac2cb9369..563dd78d8 100644
--- a/src/test/ref/screen-center-distance.log
+++ b/src/test/ref/screen-center-distance.log
@@ -40,7 +40,10 @@ Culled Empty Block (label) @9
 Culled Empty Block (label) @10
 Culled Empty Block (label) @11
 Culled Empty Block (label) @12
-Culled Empty Block (label) init_squares::@2
+Culled Empty Block (label) init_squares::@4
+Culled Empty Block (label) init_squares::@3
+Culled Empty Block (label) init_squares::@5
+Culled Empty Block (label) init_squares::@6
 Culled Empty Block (label) @14
 Culled Empty Block (label) sqr::@1
 Culled Empty Block (label) @15
@@ -199,7 +202,7 @@ bsearch16u::@3: scope:[bsearch16u]  from bsearch16u::@1 bsearch16u::@2
   (word*) bsearch16u::return#2 ← (word*~) bsearch16u::$4
   to:bsearch16u::@return
 @13: scope:[]  from @5
-  (byte*) heap_head#29 ← phi( @5/(byte*) heap_head#0 )
+  (byte*) heap_head#30 ← phi( @5/(byte*) heap_head#0 )
   (byte) NUM_SQUARES#0 ← (byte) $ff
   (word*) SQUARES#0 ← (word*) 0
   to:@49
@@ -212,9 +215,9 @@ init_squares: scope:[init_squares]  from init_dist_screen
   (word) malloc::size#0 ← (byte~) init_squares::$0
   call malloc 
   (void*) malloc::return#2 ← (void*) malloc::return#1
-  to:init_squares::@3
-init_squares::@3: scope:[init_squares]  from init_squares
-  (byte) NUM_SQUARES#7 ← phi( init_squares/(byte) NUM_SQUARES#6 )
+  to:init_squares::@7
+init_squares::@7: scope:[init_squares]  from init_squares
+  (byte) NUM_SQUARES#14 ← phi( init_squares/(byte) NUM_SQUARES#6 )
   (byte*) heap_head#12 ← phi( init_squares/(byte*) heap_head#2 )
   (void*) malloc::return#4 ← phi( init_squares/(void*) malloc::return#2 )
   (void*~) init_squares::$1 ← (void*) malloc::return#4
@@ -222,24 +225,32 @@ init_squares::@3: scope:[init_squares]  from init_squares
   (word*) SQUARES#1 ← ((word*)) (void*~) init_squares::$1
   (word*) init_squares::squares#0 ← (word*) SQUARES#1
   (word) init_squares::sqr#0 ← (word) 0
-  (number~) init_squares::$2 ← (byte) NUM_SQUARES#7 - (number) 1
   (byte) init_squares::i#0 ← (byte) 0
   to:init_squares::@1
-init_squares::@1: scope:[init_squares]  from init_squares::@1 init_squares::@3
-  (word*) SQUARES#17 ← phi( init_squares::@1/(word*) SQUARES#17 init_squares::@3/(word*) SQUARES#1 )
-  (byte*) heap_head#20 ← phi( init_squares::@1/(byte*) heap_head#20 init_squares::@3/(byte*) heap_head#3 )
-  (byte) init_squares::i#2 ← phi( init_squares::@1/(byte) init_squares::i#1 init_squares::@3/(byte) init_squares::i#0 )
-  (word*) init_squares::squares#2 ← phi( init_squares::@1/(word*) init_squares::squares#1 init_squares::@3/(word*) init_squares::squares#0 )
-  (word) init_squares::sqr#2 ← phi( init_squares::@1/(word) init_squares::sqr#1 init_squares::@3/(word) init_squares::sqr#0 )
+init_squares::@1: scope:[init_squares]  from init_squares::@2 init_squares::@7
+  (word*) SQUARES#17 ← phi( init_squares::@2/(word*) SQUARES#26 init_squares::@7/(word*) SQUARES#1 )
+  (byte*) heap_head#20 ← phi( init_squares::@2/(byte*) heap_head#26 init_squares::@7/(byte*) heap_head#3 )
+  (word*) init_squares::squares#3 ← phi( init_squares::@2/(word*) init_squares::squares#1 init_squares::@7/(word*) init_squares::squares#0 )
+  (word) init_squares::sqr#3 ← phi( init_squares::@2/(word) init_squares::sqr#1 init_squares::@7/(word) init_squares::sqr#0 )
+  (byte) NUM_SQUARES#7 ← phi( init_squares::@2/(byte) NUM_SQUARES#13 init_squares::@7/(byte) NUM_SQUARES#14 )
+  (byte) init_squares::i#2 ← phi( init_squares::@2/(byte) init_squares::i#1 init_squares::@7/(byte) init_squares::i#0 )
+  (bool~) init_squares::$2 ← (byte) init_squares::i#2 < (byte) NUM_SQUARES#7
+  if((bool~) init_squares::$2) goto init_squares::@2
+  to:init_squares::@return
+init_squares::@2: scope:[init_squares]  from init_squares::@1
+  (word*) SQUARES#26 ← phi( init_squares::@1/(word*) SQUARES#17 )
+  (byte*) heap_head#26 ← phi( init_squares::@1/(byte*) heap_head#20 )
+  (byte) NUM_SQUARES#13 ← phi( init_squares::@1/(byte) NUM_SQUARES#7 )
+  (byte) init_squares::i#3 ← phi( init_squares::@1/(byte) init_squares::i#2 )
+  (word*) init_squares::squares#2 ← phi( init_squares::@1/(word*) init_squares::squares#3 )
+  (word) init_squares::sqr#2 ← phi( init_squares::@1/(word) init_squares::sqr#3 )
   *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
   (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
-  (number~) init_squares::$3 ← (byte) init_squares::i#2 * (number) 2
+  (number~) init_squares::$3 ← (byte) init_squares::i#3 * (number) 2
   (number~) init_squares::$4 ← (number~) init_squares::$3 + (number) 1
   (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (number~) init_squares::$4
-  (byte) init_squares::i#1 ← (byte) init_squares::i#2 + rangenext(0,init_squares::$2)
-  (bool~) init_squares::$5 ← (byte) init_squares::i#1 != rangelast(0,init_squares::$2)
-  if((bool~) init_squares::$5) goto init_squares::@1
-  to:init_squares::@return
+  (byte) init_squares::i#1 ← ++ (byte) init_squares::i#3
+  to:init_squares::@1
 init_squares::@return: scope:[init_squares]  from init_squares::@1
   (word*) SQUARES#8 ← phi( init_squares::@1/(word*) SQUARES#17 )
   (byte*) heap_head#13 ← phi( init_squares::@1/(byte*) heap_head#20 )
@@ -263,7 +274,7 @@ sqr::@return: scope:[sqr]  from sqr
 
 (byte()) sqrt((word) sqrt::val)
 sqrt: scope:[sqrt]  from init_dist_screen::@21
-  (byte) NUM_SQUARES#8 ← phi( init_dist_screen::@21/(byte) NUM_SQUARES#13 )
+  (byte) NUM_SQUARES#8 ← phi( init_dist_screen::@21/(byte) NUM_SQUARES#15 )
   (word*) SQUARES#10 ← phi( init_dist_screen::@21/(word*) SQUARES#20 )
   (word) sqrt::val#1 ← phi( init_dist_screen::@21/(word) sqrt::val#0 )
   (word) bsearch16u::key#0 ← (word) sqrt::val#1
@@ -467,23 +478,23 @@ print_char_at::@return: scope:[print_char_at]  from print_char_at
 
 (void()) main()
 main: scope:[main]  from @49
-  (word*) SQUARES#43 ← phi( @49/(word*) SQUARES#25 )
-  (byte*) heap_head#43 ← phi( @49/(byte*) heap_head#25 )
-  (byte) NUM_SQUARES#36 ← phi( @49/(byte) NUM_SQUARES#17 )
+  (word*) SQUARES#44 ← phi( @49/(word*) SQUARES#25 )
+  (byte*) heap_head#44 ← phi( @49/(byte*) heap_head#25 )
+  (byte) NUM_SQUARES#38 ← phi( @49/(byte) NUM_SQUARES#19 )
   (byte*) init_font_hex::charset#1 ← (const byte*) CHARSET
   call init_font_hex 
   to:main::@3
 main::@3: scope:[main]  from main
-  (word*) SQUARES#41 ← phi( main/(word*) SQUARES#43 )
-  (byte*) heap_head#38 ← phi( main/(byte*) heap_head#43 )
-  (byte) NUM_SQUARES#32 ← phi( main/(byte) NUM_SQUARES#36 )
+  (word*) SQUARES#42 ← phi( main/(word*) SQUARES#44 )
+  (byte*) heap_head#39 ← phi( main/(byte*) heap_head#44 )
+  (byte) NUM_SQUARES#34 ← phi( main/(byte) NUM_SQUARES#38 )
   (byte*) main::toD0181_screen#0 ← (const byte*) SCREEN
   (byte*) main::toD0181_gfx#0 ← (const byte*) CHARSET
   to:main::toD0181
 main::toD0181: scope:[main]  from main::@3
-  (word*) SQUARES#39 ← phi( main::@3/(word*) SQUARES#41 )
-  (byte*) heap_head#34 ← phi( main::@3/(byte*) heap_head#38 )
-  (byte) NUM_SQUARES#28 ← phi( main::@3/(byte) NUM_SQUARES#32 )
+  (word*) SQUARES#40 ← phi( main::@3/(word*) SQUARES#42 )
+  (byte*) heap_head#35 ← phi( main::@3/(byte*) heap_head#39 )
+  (byte) NUM_SQUARES#30 ← phi( main::@3/(byte) NUM_SQUARES#34 )
   (byte*) main::toD0181_gfx#1 ← phi( main::@3/(byte*) main::toD0181_gfx#0 )
   (byte*) main::toD0181_screen#1 ← phi( main::@3/(byte*) main::toD0181_screen#0 )
   (word~) main::toD0181_$0 ← ((word)) (byte*) main::toD0181_screen#1
@@ -498,25 +509,25 @@ main::toD0181: scope:[main]  from main::@3
   (byte) main::toD0181_return#0 ← (number~) main::toD0181_$8
   to:main::toD0181_@return
 main::toD0181_@return: scope:[main]  from main::toD0181
-  (word*) SQUARES#33 ← phi( main::toD0181/(word*) SQUARES#39 )
-  (byte*) heap_head#30 ← phi( main::toD0181/(byte*) heap_head#34 )
-  (byte) NUM_SQUARES#22 ← phi( main::toD0181/(byte) NUM_SQUARES#28 )
+  (word*) SQUARES#34 ← phi( main::toD0181/(word*) SQUARES#40 )
+  (byte*) heap_head#31 ← phi( main::toD0181/(byte*) heap_head#35 )
+  (byte) NUM_SQUARES#24 ← phi( main::toD0181/(byte) NUM_SQUARES#30 )
   (byte) main::toD0181_return#2 ← phi( main::toD0181/(byte) main::toD0181_return#0 )
   (byte) main::toD0181_return#1 ← (byte) main::toD0181_return#2
   to:main::@1
 main::@1: scope:[main]  from main::toD0181_@return
-  (word*) SQUARES#26 ← phi( main::toD0181_@return/(word*) SQUARES#33 )
-  (byte*) heap_head#26 ← phi( main::toD0181_@return/(byte*) heap_head#30 )
-  (byte) NUM_SQUARES#18 ← phi( main::toD0181_@return/(byte) NUM_SQUARES#22 )
+  (word*) SQUARES#27 ← phi( main::toD0181_@return/(word*) SQUARES#34 )
+  (byte*) heap_head#27 ← phi( main::toD0181_@return/(byte*) heap_head#31 )
+  (byte) NUM_SQUARES#20 ← phi( main::toD0181_@return/(byte) NUM_SQUARES#24 )
   (byte) main::toD0181_return#3 ← phi( main::toD0181_@return/(byte) main::toD0181_return#1 )
   (byte~) main::$1 ← (byte) main::toD0181_return#3
   *((const byte*) D018) ← (byte~) main::$1
   call clock_start 
   to:main::@4
 main::@4: scope:[main]  from main::@1
-  (word*) SQUARES#21 ← phi( main::@1/(word*) SQUARES#26 )
-  (byte*) heap_head#21 ← phi( main::@1/(byte*) heap_head#26 )
-  (byte) NUM_SQUARES#14 ← phi( main::@1/(byte) NUM_SQUARES#18 )
+  (word*) SQUARES#21 ← phi( main::@1/(word*) SQUARES#27 )
+  (byte*) heap_head#21 ← phi( main::@1/(byte*) heap_head#27 )
+  (byte) NUM_SQUARES#16 ← phi( main::@1/(byte) NUM_SQUARES#20 )
   (byte*) init_dist_screen::screen#0 ← (const byte*) SCREEN
   call init_dist_screen 
   to:main::@5
@@ -531,9 +542,9 @@ main::@5: scope:[main]  from main::@4
   (dword) clock::return#2 ← (dword) clock::return#1
   to:main::@6
 main::@6: scope:[main]  from main::@5
-  (word*) SQUARES#42 ← phi( main::@5/(word*) SQUARES#3 )
-  (byte*) heap_head#39 ← phi( main::@5/(byte*) heap_head#5 )
-  (byte) NUM_SQUARES#33 ← phi( main::@5/(byte) NUM_SQUARES#1 )
+  (word*) SQUARES#43 ← phi( main::@5/(word*) SQUARES#3 )
+  (byte*) heap_head#40 ← phi( main::@5/(byte*) heap_head#5 )
+  (byte) NUM_SQUARES#35 ← phi( main::@5/(byte) NUM_SQUARES#1 )
   (dword) clock::return#4 ← phi( main::@5/(dword) clock::return#2 )
   (dword~) main::$4 ← (dword) clock::return#4
   (dword~) main::$5 ← (dword~) main::$4 - (const dword) CLOCKS_PER_INIT
@@ -543,16 +554,16 @@ main::@6: scope:[main]  from main::@5
   call print_dword_at 
   to:main::@7
 main::@7: scope:[main]  from main::@6
-  (word*) SQUARES#40 ← phi( main::@6/(word*) SQUARES#42 )
-  (byte*) heap_head#35 ← phi( main::@6/(byte*) heap_head#39 )
-  (byte) NUM_SQUARES#29 ← phi( main::@6/(byte) NUM_SQUARES#33 )
+  (word*) SQUARES#41 ← phi( main::@6/(word*) SQUARES#43 )
+  (byte*) heap_head#36 ← phi( main::@6/(byte*) heap_head#40 )
+  (byte) NUM_SQUARES#31 ← phi( main::@6/(byte) NUM_SQUARES#35 )
   (byte*) main::toD0182_screen#0 ← (const byte*) main::BASE_SCREEN
   (byte*) main::toD0182_gfx#0 ← (const byte*) main::BASE_CHARSET
   to:main::toD0182
 main::toD0182: scope:[main]  from main::@7
-  (word*) SQUARES#34 ← phi( main::@7/(word*) SQUARES#40 )
-  (byte*) heap_head#31 ← phi( main::@7/(byte*) heap_head#35 )
-  (byte) NUM_SQUARES#23 ← phi( main::@7/(byte) NUM_SQUARES#29 )
+  (word*) SQUARES#35 ← phi( main::@7/(word*) SQUARES#41 )
+  (byte*) heap_head#32 ← phi( main::@7/(byte*) heap_head#36 )
+  (byte) NUM_SQUARES#25 ← phi( main::@7/(byte) NUM_SQUARES#31 )
   (byte*) main::toD0182_gfx#1 ← phi( main::@7/(byte*) main::toD0182_gfx#0 )
   (byte*) main::toD0182_screen#1 ← phi( main::@7/(byte*) main::toD0182_screen#0 )
   (word~) main::toD0182_$0 ← ((word)) (byte*) main::toD0182_screen#1
@@ -567,16 +578,16 @@ main::toD0182: scope:[main]  from main::@7
   (byte) main::toD0182_return#0 ← (number~) main::toD0182_$8
   to:main::toD0182_@return
 main::toD0182_@return: scope:[main]  from main::toD0182
-  (word*) SQUARES#27 ← phi( main::toD0182/(word*) SQUARES#34 )
-  (byte*) heap_head#27 ← phi( main::toD0182/(byte*) heap_head#31 )
-  (byte) NUM_SQUARES#19 ← phi( main::toD0182/(byte) NUM_SQUARES#23 )
+  (word*) SQUARES#28 ← phi( main::toD0182/(word*) SQUARES#35 )
+  (byte*) heap_head#28 ← phi( main::toD0182/(byte*) heap_head#32 )
+  (byte) NUM_SQUARES#21 ← phi( main::toD0182/(byte) NUM_SQUARES#25 )
   (byte) main::toD0182_return#2 ← phi( main::toD0182/(byte) main::toD0182_return#0 )
   (byte) main::toD0182_return#1 ← (byte) main::toD0182_return#2
   to:main::@2
 main::@2: scope:[main]  from main::toD0182_@return
-  (word*) SQUARES#22 ← phi( main::toD0182_@return/(word*) SQUARES#27 )
-  (byte*) heap_head#22 ← phi( main::toD0182_@return/(byte*) heap_head#27 )
-  (byte) NUM_SQUARES#15 ← phi( main::toD0182_@return/(byte) NUM_SQUARES#19 )
+  (word*) SQUARES#22 ← phi( main::toD0182_@return/(word*) SQUARES#28 )
+  (byte*) heap_head#22 ← phi( main::toD0182_@return/(byte*) heap_head#28 )
+  (byte) NUM_SQUARES#17 ← phi( main::toD0182_@return/(byte) NUM_SQUARES#21 )
   (byte) main::toD0182_return#3 ← phi( main::toD0182_@return/(byte) main::toD0182_return#1 )
   (byte~) main::$7 ← (byte) main::toD0182_return#3
   *((const byte*) D018) ← (byte~) main::$7
@@ -584,7 +595,7 @@ main::@2: scope:[main]  from main::toD0182_@return
 main::@return: scope:[main]  from main::@2
   (word*) SQUARES#13 ← phi( main::@2/(word*) SQUARES#22 )
   (byte*) heap_head#15 ← phi( main::@2/(byte*) heap_head#22 )
-  (byte) NUM_SQUARES#10 ← phi( main::@2/(byte) NUM_SQUARES#15 )
+  (byte) NUM_SQUARES#10 ← phi( main::@2/(byte) NUM_SQUARES#17 )
   (byte) NUM_SQUARES#2 ← (byte) NUM_SQUARES#10
   (byte*) heap_head#6 ← (byte*) heap_head#15
   (word*) SQUARES#4 ← (word*) SQUARES#13
@@ -600,7 +611,7 @@ init_dist_screen: scope:[init_dist_screen]  from main::@4
   call init_squares 
   to:init_dist_screen::@19
 init_dist_screen::@19: scope:[init_dist_screen]  from init_dist_screen
-  (byte) NUM_SQUARES#38 ← phi( init_dist_screen/(byte) NUM_SQUARES#3 )
+  (byte) NUM_SQUARES#40 ← phi( init_dist_screen/(byte) NUM_SQUARES#3 )
   (byte*) init_dist_screen::screen#1 ← phi( init_dist_screen/(byte*) init_dist_screen::screen#2 )
   (word*) SQUARES#14 ← phi( init_dist_screen/(word*) SQUARES#2 )
   (byte*) heap_head#16 ← phi( init_dist_screen/(byte*) heap_head#4 )
@@ -612,11 +623,11 @@ init_dist_screen::@19: scope:[init_dist_screen]  from init_dist_screen
   (byte) init_dist_screen::y#0 ← (byte) 0
   to:init_dist_screen::@1
 init_dist_screen::@1: scope:[init_dist_screen]  from init_dist_screen::@19 init_dist_screen::@7
-  (byte*) heap_head#44 ← phi( init_dist_screen::@19/(byte*) heap_head#7 init_dist_screen::@7/(byte*) heap_head#24 )
-  (byte) NUM_SQUARES#37 ← phi( init_dist_screen::@19/(byte) NUM_SQUARES#38 init_dist_screen::@7/(byte) NUM_SQUARES#16 )
+  (byte*) heap_head#45 ← phi( init_dist_screen::@19/(byte*) heap_head#7 init_dist_screen::@7/(byte*) heap_head#24 )
+  (byte) NUM_SQUARES#39 ← phi( init_dist_screen::@19/(byte) NUM_SQUARES#40 init_dist_screen::@7/(byte) NUM_SQUARES#18 )
   (byte*) init_dist_screen::screen_bottomline#14 ← phi( init_dist_screen::@19/(byte*) init_dist_screen::screen_bottomline#0 init_dist_screen::@7/(byte*) init_dist_screen::screen_bottomline#1 )
   (byte*) init_dist_screen::screen_topline#14 ← phi( init_dist_screen::@19/(byte*) init_dist_screen::screen_topline#0 init_dist_screen::@7/(byte*) init_dist_screen::screen_topline#1 )
-  (word*) SQUARES#35 ← phi( init_dist_screen::@19/(word*) SQUARES#5 init_dist_screen::@7/(word*) SQUARES#24 )
+  (word*) SQUARES#36 ← phi( init_dist_screen::@19/(word*) SQUARES#5 init_dist_screen::@7/(word*) SQUARES#24 )
   (byte) init_dist_screen::y#2 ← phi( init_dist_screen::@19/(byte) init_dist_screen::y#0 init_dist_screen::@7/(byte) init_dist_screen::y#1 )
   (number~) init_dist_screen::$2 ← (byte) init_dist_screen::y#2 * (number) 2
   (byte) init_dist_screen::y2#0 ← (number~) init_dist_screen::$2
@@ -624,34 +635,34 @@ init_dist_screen::@1: scope:[init_dist_screen]  from init_dist_screen::@19 init_
   if((bool~) init_dist_screen::$3) goto init_dist_screen::@2
   to:init_dist_screen::@3
 init_dist_screen::@2: scope:[init_dist_screen]  from init_dist_screen::@1
-  (byte*) heap_head#40 ← phi( init_dist_screen::@1/(byte*) heap_head#44 )
-  (byte) NUM_SQUARES#34 ← phi( init_dist_screen::@1/(byte) NUM_SQUARES#37 )
+  (byte*) heap_head#41 ← phi( init_dist_screen::@1/(byte*) heap_head#45 )
+  (byte) NUM_SQUARES#36 ← phi( init_dist_screen::@1/(byte) NUM_SQUARES#39 )
   (byte) init_dist_screen::y#9 ← phi( init_dist_screen::@1/(byte) init_dist_screen::y#2 )
   (byte*) init_dist_screen::screen_bottomline#11 ← phi( init_dist_screen::@1/(byte*) init_dist_screen::screen_bottomline#14 )
   (byte*) init_dist_screen::screen_topline#11 ← phi( init_dist_screen::@1/(byte*) init_dist_screen::screen_topline#14 )
-  (word*) SQUARES#28 ← phi( init_dist_screen::@1/(word*) SQUARES#35 )
+  (word*) SQUARES#29 ← phi( init_dist_screen::@1/(word*) SQUARES#36 )
   (byte) init_dist_screen::y2#1 ← phi( init_dist_screen::@1/(byte) init_dist_screen::y2#0 )
   (number~) init_dist_screen::$6 ← (byte) init_dist_screen::y2#1 - (number) $18
   (number~) init_dist_screen::$7 ← (number~) init_dist_screen::$6
   to:init_dist_screen::@4
 init_dist_screen::@3: scope:[init_dist_screen]  from init_dist_screen::@1
-  (byte*) heap_head#41 ← phi( init_dist_screen::@1/(byte*) heap_head#44 )
-  (byte) NUM_SQUARES#35 ← phi( init_dist_screen::@1/(byte) NUM_SQUARES#37 )
+  (byte*) heap_head#42 ← phi( init_dist_screen::@1/(byte*) heap_head#45 )
+  (byte) NUM_SQUARES#37 ← phi( init_dist_screen::@1/(byte) NUM_SQUARES#39 )
   (byte) init_dist_screen::y#10 ← phi( init_dist_screen::@1/(byte) init_dist_screen::y#2 )
   (byte*) init_dist_screen::screen_bottomline#12 ← phi( init_dist_screen::@1/(byte*) init_dist_screen::screen_bottomline#14 )
   (byte*) init_dist_screen::screen_topline#12 ← phi( init_dist_screen::@1/(byte*) init_dist_screen::screen_topline#14 )
-  (word*) SQUARES#29 ← phi( init_dist_screen::@1/(word*) SQUARES#35 )
+  (word*) SQUARES#30 ← phi( init_dist_screen::@1/(word*) SQUARES#36 )
   (byte) init_dist_screen::y2#2 ← phi( init_dist_screen::@1/(byte) init_dist_screen::y2#0 )
   (number~) init_dist_screen::$4 ← (number) $18 - (byte) init_dist_screen::y2#2
   (number~) init_dist_screen::$5 ← (number~) init_dist_screen::$4
   to:init_dist_screen::@4
 init_dist_screen::@4: scope:[init_dist_screen]  from init_dist_screen::@2 init_dist_screen::@3
-  (byte*) heap_head#36 ← phi( init_dist_screen::@2/(byte*) heap_head#40 init_dist_screen::@3/(byte*) heap_head#41 )
-  (byte) NUM_SQUARES#30 ← phi( init_dist_screen::@2/(byte) NUM_SQUARES#34 init_dist_screen::@3/(byte) NUM_SQUARES#35 )
+  (byte*) heap_head#37 ← phi( init_dist_screen::@2/(byte*) heap_head#41 init_dist_screen::@3/(byte*) heap_head#42 )
+  (byte) NUM_SQUARES#32 ← phi( init_dist_screen::@2/(byte) NUM_SQUARES#36 init_dist_screen::@3/(byte) NUM_SQUARES#37 )
   (byte) init_dist_screen::y#7 ← phi( init_dist_screen::@2/(byte) init_dist_screen::y#9 init_dist_screen::@3/(byte) init_dist_screen::y#10 )
   (byte*) init_dist_screen::screen_bottomline#8 ← phi( init_dist_screen::@2/(byte*) init_dist_screen::screen_bottomline#11 init_dist_screen::@3/(byte*) init_dist_screen::screen_bottomline#12 )
   (byte*) init_dist_screen::screen_topline#8 ← phi( init_dist_screen::@2/(byte*) init_dist_screen::screen_topline#11 init_dist_screen::@3/(byte*) init_dist_screen::screen_topline#12 )
-  (word*) SQUARES#19 ← phi( init_dist_screen::@2/(word*) SQUARES#28 init_dist_screen::@3/(word*) SQUARES#29 )
+  (word*) SQUARES#19 ← phi( init_dist_screen::@2/(word*) SQUARES#29 init_dist_screen::@3/(word*) SQUARES#30 )
   (number~) init_dist_screen::$8 ← phi( init_dist_screen::@2/(number~) init_dist_screen::$7 init_dist_screen::@3/(number~) init_dist_screen::$5 )
   (byte) init_dist_screen::yd#0 ← (number~) init_dist_screen::$8
   (byte) sqr::val#0 ← (byte) init_dist_screen::yd#0
@@ -659,9 +670,9 @@ init_dist_screen::@4: scope:[init_dist_screen]  from init_dist_screen::@2 init_d
   (word) sqr::return#2 ← (word) sqr::return#1
   to:init_dist_screen::@20
 init_dist_screen::@20: scope:[init_dist_screen]  from init_dist_screen::@4
-  (word*) SQUARES#36 ← phi( init_dist_screen::@4/(word*) SQUARES#19 )
-  (byte*) heap_head#32 ← phi( init_dist_screen::@4/(byte*) heap_head#36 )
-  (byte) NUM_SQUARES#24 ← phi( init_dist_screen::@4/(byte) NUM_SQUARES#30 )
+  (word*) SQUARES#37 ← phi( init_dist_screen::@4/(word*) SQUARES#19 )
+  (byte*) heap_head#33 ← phi( init_dist_screen::@4/(byte*) heap_head#37 )
+  (byte) NUM_SQUARES#26 ← phi( init_dist_screen::@4/(byte) NUM_SQUARES#32 )
   (byte) init_dist_screen::y#5 ← phi( init_dist_screen::@4/(byte) init_dist_screen::y#7 )
   (byte*) init_dist_screen::screen_bottomline#6 ← phi( init_dist_screen::@4/(byte*) init_dist_screen::screen_bottomline#8 )
   (byte*) init_dist_screen::screen_topline#6 ← phi( init_dist_screen::@4/(byte*) init_dist_screen::screen_topline#8 )
@@ -674,9 +685,9 @@ init_dist_screen::@20: scope:[init_dist_screen]  from init_dist_screen::@4
 init_dist_screen::@5: scope:[init_dist_screen]  from init_dist_screen::@20 init_dist_screen::@22
   (byte) init_dist_screen::xb#8 ← phi( init_dist_screen::@20/(byte) init_dist_screen::xb#0 init_dist_screen::@22/(byte) init_dist_screen::xb#1 )
   (word) init_dist_screen::yds#6 ← phi( init_dist_screen::@20/(word) init_dist_screen::yds#0 init_dist_screen::@22/(word) init_dist_screen::yds#7 )
-  (word*) SQUARES#30 ← phi( init_dist_screen::@20/(word*) SQUARES#36 init_dist_screen::@22/(word*) SQUARES#37 )
-  (byte*) heap_head#28 ← phi( init_dist_screen::@20/(byte*) heap_head#32 init_dist_screen::@22/(byte*) heap_head#33 )
-  (byte) NUM_SQUARES#20 ← phi( init_dist_screen::@20/(byte) NUM_SQUARES#24 init_dist_screen::@22/(byte) NUM_SQUARES#25 )
+  (word*) SQUARES#31 ← phi( init_dist_screen::@20/(word*) SQUARES#37 init_dist_screen::@22/(word*) SQUARES#38 )
+  (byte*) heap_head#29 ← phi( init_dist_screen::@20/(byte*) heap_head#33 init_dist_screen::@22/(byte*) heap_head#34 )
+  (byte) NUM_SQUARES#22 ← phi( init_dist_screen::@20/(byte) NUM_SQUARES#26 init_dist_screen::@22/(byte) NUM_SQUARES#27 )
   (byte) init_dist_screen::y#4 ← phi( init_dist_screen::@20/(byte) init_dist_screen::y#5 init_dist_screen::@22/(byte) init_dist_screen::y#6 )
   (byte*) init_dist_screen::screen_bottomline#4 ← phi( init_dist_screen::@20/(byte*) init_dist_screen::screen_bottomline#6 init_dist_screen::@22/(byte*) init_dist_screen::screen_bottomline#3 )
   (byte*) init_dist_screen::screen_topline#4 ← phi( init_dist_screen::@20/(byte*) init_dist_screen::screen_topline#6 init_dist_screen::@22/(byte*) init_dist_screen::screen_topline#3 )
@@ -685,14 +696,14 @@ init_dist_screen::@5: scope:[init_dist_screen]  from init_dist_screen::@20 init_
   if((bool~) init_dist_screen::$10) goto init_dist_screen::@6
   to:init_dist_screen::@7
 init_dist_screen::@6: scope:[init_dist_screen]  from init_dist_screen::@5
-  (byte*) heap_head#47 ← phi( init_dist_screen::@5/(byte*) heap_head#28 )
+  (byte*) heap_head#48 ← phi( init_dist_screen::@5/(byte*) heap_head#29 )
   (byte) init_dist_screen::y#14 ← phi( init_dist_screen::@5/(byte) init_dist_screen::y#4 )
   (byte) init_dist_screen::xb#7 ← phi( init_dist_screen::@5/(byte) init_dist_screen::xb#8 )
   (byte*) init_dist_screen::screen_bottomline#13 ← phi( init_dist_screen::@5/(byte*) init_dist_screen::screen_bottomline#4 )
   (byte*) init_dist_screen::screen_topline#13 ← phi( init_dist_screen::@5/(byte*) init_dist_screen::screen_topline#4 )
-  (byte) NUM_SQUARES#31 ← phi( init_dist_screen::@5/(byte) NUM_SQUARES#20 )
+  (byte) NUM_SQUARES#33 ← phi( init_dist_screen::@5/(byte) NUM_SQUARES#22 )
   (word) init_dist_screen::yds#5 ← phi( init_dist_screen::@5/(word) init_dist_screen::yds#6 )
-  (word*) SQUARES#38 ← phi( init_dist_screen::@5/(word*) SQUARES#30 )
+  (word*) SQUARES#39 ← phi( init_dist_screen::@5/(word*) SQUARES#31 )
   (byte) init_dist_screen::x#3 ← phi( init_dist_screen::@5/(byte) init_dist_screen::x#2 )
   (number~) init_dist_screen::$11 ← (byte) init_dist_screen::x#3 * (number) 2
   (byte) init_dist_screen::x2#0 ← (number~) init_dist_screen::$11
@@ -700,9 +711,9 @@ init_dist_screen::@6: scope:[init_dist_screen]  from init_dist_screen::@5
   if((bool~) init_dist_screen::$12) goto init_dist_screen::@8
   to:init_dist_screen::@9
 init_dist_screen::@7: scope:[init_dist_screen]  from init_dist_screen::@5
-  (word*) SQUARES#24 ← phi( init_dist_screen::@5/(word*) SQUARES#30 )
-  (byte*) heap_head#24 ← phi( init_dist_screen::@5/(byte*) heap_head#28 )
-  (byte) NUM_SQUARES#16 ← phi( init_dist_screen::@5/(byte) NUM_SQUARES#20 )
+  (word*) SQUARES#24 ← phi( init_dist_screen::@5/(word*) SQUARES#31 )
+  (byte*) heap_head#24 ← phi( init_dist_screen::@5/(byte*) heap_head#29 )
+  (byte) NUM_SQUARES#18 ← phi( init_dist_screen::@5/(byte) NUM_SQUARES#22 )
   (byte) init_dist_screen::y#3 ← phi( init_dist_screen::@5/(byte) init_dist_screen::y#4 )
   (byte*) init_dist_screen::screen_bottomline#2 ← phi( init_dist_screen::@5/(byte*) init_dist_screen::screen_bottomline#4 )
   (byte*) init_dist_screen::screen_topline#2 ← phi( init_dist_screen::@5/(byte*) init_dist_screen::screen_topline#4 )
@@ -713,43 +724,43 @@ init_dist_screen::@7: scope:[init_dist_screen]  from init_dist_screen::@5
   if((bool~) init_dist_screen::$21) goto init_dist_screen::@1
   to:init_dist_screen::@return
 init_dist_screen::@8: scope:[init_dist_screen]  from init_dist_screen::@6
-  (byte*) heap_head#45 ← phi( init_dist_screen::@6/(byte*) heap_head#47 )
+  (byte*) heap_head#46 ← phi( init_dist_screen::@6/(byte*) heap_head#48 )
   (byte) init_dist_screen::y#12 ← phi( init_dist_screen::@6/(byte) init_dist_screen::y#14 )
   (byte) init_dist_screen::xb#5 ← phi( init_dist_screen::@6/(byte) init_dist_screen::xb#7 )
   (byte*) init_dist_screen::screen_bottomline#9 ← phi( init_dist_screen::@6/(byte*) init_dist_screen::screen_bottomline#13 )
   (byte) init_dist_screen::x#7 ← phi( init_dist_screen::@6/(byte) init_dist_screen::x#3 )
   (byte*) init_dist_screen::screen_topline#9 ← phi( init_dist_screen::@6/(byte*) init_dist_screen::screen_topline#13 )
-  (byte) NUM_SQUARES#26 ← phi( init_dist_screen::@6/(byte) NUM_SQUARES#31 )
+  (byte) NUM_SQUARES#28 ← phi( init_dist_screen::@6/(byte) NUM_SQUARES#33 )
   (word) init_dist_screen::yds#3 ← phi( init_dist_screen::@6/(word) init_dist_screen::yds#5 )
-  (word*) SQUARES#31 ← phi( init_dist_screen::@6/(word*) SQUARES#38 )
+  (word*) SQUARES#32 ← phi( init_dist_screen::@6/(word*) SQUARES#39 )
   (byte) init_dist_screen::x2#1 ← phi( init_dist_screen::@6/(byte) init_dist_screen::x2#0 )
   (number~) init_dist_screen::$15 ← (byte) init_dist_screen::x2#1 - (number) $27
   (number~) init_dist_screen::$16 ← (number~) init_dist_screen::$15
   to:init_dist_screen::@10
 init_dist_screen::@9: scope:[init_dist_screen]  from init_dist_screen::@6
-  (byte*) heap_head#46 ← phi( init_dist_screen::@6/(byte*) heap_head#47 )
+  (byte*) heap_head#47 ← phi( init_dist_screen::@6/(byte*) heap_head#48 )
   (byte) init_dist_screen::y#13 ← phi( init_dist_screen::@6/(byte) init_dist_screen::y#14 )
   (byte) init_dist_screen::xb#6 ← phi( init_dist_screen::@6/(byte) init_dist_screen::xb#7 )
   (byte*) init_dist_screen::screen_bottomline#10 ← phi( init_dist_screen::@6/(byte*) init_dist_screen::screen_bottomline#13 )
   (byte) init_dist_screen::x#8 ← phi( init_dist_screen::@6/(byte) init_dist_screen::x#3 )
   (byte*) init_dist_screen::screen_topline#10 ← phi( init_dist_screen::@6/(byte*) init_dist_screen::screen_topline#13 )
-  (byte) NUM_SQUARES#27 ← phi( init_dist_screen::@6/(byte) NUM_SQUARES#31 )
+  (byte) NUM_SQUARES#29 ← phi( init_dist_screen::@6/(byte) NUM_SQUARES#33 )
   (word) init_dist_screen::yds#4 ← phi( init_dist_screen::@6/(word) init_dist_screen::yds#5 )
-  (word*) SQUARES#32 ← phi( init_dist_screen::@6/(word*) SQUARES#38 )
+  (word*) SQUARES#33 ← phi( init_dist_screen::@6/(word*) SQUARES#39 )
   (byte) init_dist_screen::x2#2 ← phi( init_dist_screen::@6/(byte) init_dist_screen::x2#0 )
   (number~) init_dist_screen::$13 ← (number) $27 - (byte) init_dist_screen::x2#2
   (number~) init_dist_screen::$14 ← (number~) init_dist_screen::$13
   to:init_dist_screen::@10
 init_dist_screen::@10: scope:[init_dist_screen]  from init_dist_screen::@8 init_dist_screen::@9
-  (byte*) heap_head#42 ← phi( init_dist_screen::@8/(byte*) heap_head#45 init_dist_screen::@9/(byte*) heap_head#46 )
+  (byte*) heap_head#43 ← phi( init_dist_screen::@8/(byte*) heap_head#46 init_dist_screen::@9/(byte*) heap_head#47 )
   (byte) init_dist_screen::y#11 ← phi( init_dist_screen::@8/(byte) init_dist_screen::y#12 init_dist_screen::@9/(byte) init_dist_screen::y#13 )
   (byte) init_dist_screen::xb#4 ← phi( init_dist_screen::@8/(byte) init_dist_screen::xb#5 init_dist_screen::@9/(byte) init_dist_screen::xb#6 )
   (byte*) init_dist_screen::screen_bottomline#7 ← phi( init_dist_screen::@8/(byte*) init_dist_screen::screen_bottomline#9 init_dist_screen::@9/(byte*) init_dist_screen::screen_bottomline#10 )
   (byte) init_dist_screen::x#6 ← phi( init_dist_screen::@8/(byte) init_dist_screen::x#7 init_dist_screen::@9/(byte) init_dist_screen::x#8 )
   (byte*) init_dist_screen::screen_topline#7 ← phi( init_dist_screen::@8/(byte*) init_dist_screen::screen_topline#9 init_dist_screen::@9/(byte*) init_dist_screen::screen_topline#10 )
-  (byte) NUM_SQUARES#21 ← phi( init_dist_screen::@8/(byte) NUM_SQUARES#26 init_dist_screen::@9/(byte) NUM_SQUARES#27 )
+  (byte) NUM_SQUARES#23 ← phi( init_dist_screen::@8/(byte) NUM_SQUARES#28 init_dist_screen::@9/(byte) NUM_SQUARES#29 )
   (word) init_dist_screen::yds#2 ← phi( init_dist_screen::@8/(word) init_dist_screen::yds#3 init_dist_screen::@9/(word) init_dist_screen::yds#4 )
-  (word*) SQUARES#18 ← phi( init_dist_screen::@8/(word*) SQUARES#31 init_dist_screen::@9/(word*) SQUARES#32 )
+  (word*) SQUARES#18 ← phi( init_dist_screen::@8/(word*) SQUARES#32 init_dist_screen::@9/(word*) SQUARES#33 )
   (number~) init_dist_screen::$17 ← phi( init_dist_screen::@8/(number~) init_dist_screen::$16 init_dist_screen::@9/(number~) init_dist_screen::$14 )
   (byte) init_dist_screen::xd#0 ← (number~) init_dist_screen::$17
   (byte) sqr::val#1 ← (byte) init_dist_screen::xd#0
@@ -757,13 +768,13 @@ init_dist_screen::@10: scope:[init_dist_screen]  from init_dist_screen::@8 init_
   (word) sqr::return#3 ← (word) sqr::return#1
   to:init_dist_screen::@21
 init_dist_screen::@21: scope:[init_dist_screen]  from init_dist_screen::@10
-  (byte*) heap_head#37 ← phi( init_dist_screen::@10/(byte*) heap_head#42 )
+  (byte*) heap_head#38 ← phi( init_dist_screen::@10/(byte*) heap_head#43 )
   (byte) init_dist_screen::y#8 ← phi( init_dist_screen::@10/(byte) init_dist_screen::y#11 )
   (byte) init_dist_screen::xb#3 ← phi( init_dist_screen::@10/(byte) init_dist_screen::xb#4 )
   (byte*) init_dist_screen::screen_bottomline#5 ← phi( init_dist_screen::@10/(byte*) init_dist_screen::screen_bottomline#7 )
   (byte) init_dist_screen::x#5 ← phi( init_dist_screen::@10/(byte) init_dist_screen::x#6 )
   (byte*) init_dist_screen::screen_topline#5 ← phi( init_dist_screen::@10/(byte*) init_dist_screen::screen_topline#7 )
-  (byte) NUM_SQUARES#13 ← phi( init_dist_screen::@10/(byte) NUM_SQUARES#21 )
+  (byte) NUM_SQUARES#15 ← phi( init_dist_screen::@10/(byte) NUM_SQUARES#23 )
   (word*) SQUARES#20 ← phi( init_dist_screen::@10/(word*) SQUARES#18 )
   (word) init_dist_screen::yds#1 ← phi( init_dist_screen::@10/(word) init_dist_screen::yds#2 )
   (word) sqr::return#6 ← phi( init_dist_screen::@10/(word) sqr::return#3 )
@@ -777,9 +788,9 @@ init_dist_screen::@21: scope:[init_dist_screen]  from init_dist_screen::@10
   to:init_dist_screen::@22
 init_dist_screen::@22: scope:[init_dist_screen]  from init_dist_screen::@21
   (word) init_dist_screen::yds#7 ← phi( init_dist_screen::@21/(word) init_dist_screen::yds#1 )
-  (word*) SQUARES#37 ← phi( init_dist_screen::@21/(word*) SQUARES#20 )
-  (byte*) heap_head#33 ← phi( init_dist_screen::@21/(byte*) heap_head#37 )
-  (byte) NUM_SQUARES#25 ← phi( init_dist_screen::@21/(byte) NUM_SQUARES#13 )
+  (word*) SQUARES#38 ← phi( init_dist_screen::@21/(word*) SQUARES#20 )
+  (byte*) heap_head#34 ← phi( init_dist_screen::@21/(byte*) heap_head#38 )
+  (byte) NUM_SQUARES#27 ← phi( init_dist_screen::@21/(byte) NUM_SQUARES#15 )
   (byte) init_dist_screen::y#6 ← phi( init_dist_screen::@21/(byte) init_dist_screen::y#8 )
   (byte) init_dist_screen::xb#2 ← phi( init_dist_screen::@21/(byte) init_dist_screen::xb#3 )
   (byte*) init_dist_screen::screen_bottomline#3 ← phi( init_dist_screen::@21/(byte*) init_dist_screen::screen_bottomline#5 )
@@ -798,7 +809,7 @@ init_dist_screen::@22: scope:[init_dist_screen]  from init_dist_screen::@21
 init_dist_screen::@return: scope:[init_dist_screen]  from init_dist_screen::@7
   (word*) SQUARES#15 ← phi( init_dist_screen::@7/(word*) SQUARES#24 )
   (byte*) heap_head#17 ← phi( init_dist_screen::@7/(byte*) heap_head#24 )
-  (byte) NUM_SQUARES#11 ← phi( init_dist_screen::@7/(byte) NUM_SQUARES#16 )
+  (byte) NUM_SQUARES#11 ← phi( init_dist_screen::@7/(byte) NUM_SQUARES#18 )
   (byte) NUM_SQUARES#4 ← (byte) NUM_SQUARES#11
   (byte*) heap_head#8 ← (byte*) heap_head#17
   (word*) SQUARES#6 ← (word*) SQUARES#15
@@ -806,8 +817,8 @@ init_dist_screen::@return: scope:[init_dist_screen]  from init_dist_screen::@7
   to:@return
 @49: scope:[]  from @13
   (word*) SQUARES#25 ← phi( @13/(word*) SQUARES#0 )
-  (byte*) heap_head#25 ← phi( @13/(byte*) heap_head#29 )
-  (byte) NUM_SQUARES#17 ← phi( @13/(byte) NUM_SQUARES#0 )
+  (byte*) heap_head#25 ← phi( @13/(byte*) heap_head#30 )
+  (byte) NUM_SQUARES#19 ← phi( @13/(byte) NUM_SQUARES#0 )
   call main 
   to:@50
 @50: scope:[]  from @49
@@ -874,7 +885,9 @@ SYMBOL TABLE SSA
 (byte) NUM_SQUARES#36
 (byte) NUM_SQUARES#37
 (byte) NUM_SQUARES#38
+(byte) NUM_SQUARES#39
 (byte) NUM_SQUARES#4
+(byte) NUM_SQUARES#40
 (byte) NUM_SQUARES#5
 (byte) NUM_SQUARES#6
 (byte) NUM_SQUARES#7
@@ -926,6 +939,7 @@ SYMBOL TABLE SSA
 (word*) SQUARES#41
 (word*) SQUARES#42
 (word*) SQUARES#43
+(word*) SQUARES#44
 (word*) SQUARES#5
 (word*) SQUARES#6
 (word*) SQUARES#7
@@ -1062,6 +1076,7 @@ SYMBOL TABLE SSA
 (byte*) heap_head#45
 (byte*) heap_head#46
 (byte*) heap_head#47
+(byte*) heap_head#48
 (byte*) heap_head#5
 (byte*) heap_head#6
 (byte*) heap_head#7
@@ -1268,25 +1283,28 @@ SYMBOL TABLE SSA
 (void()) init_squares()
 (byte~) init_squares::$0
 (void*~) init_squares::$1
-(number~) init_squares::$2
+(bool~) init_squares::$2
 (number~) init_squares::$3
 (number~) init_squares::$4
-(bool~) init_squares::$5
 (label) init_squares::@1
-(label) init_squares::@3
+(label) init_squares::@2
+(label) init_squares::@7
 (label) init_squares::@return
 (byte) init_squares::i
 (byte) init_squares::i#0
 (byte) init_squares::i#1
 (byte) init_squares::i#2
+(byte) init_squares::i#3
 (word) init_squares::sqr
 (word) init_squares::sqr#0
 (word) init_squares::sqr#1
 (word) init_squares::sqr#2
+(word) init_squares::sqr#3
 (word*) init_squares::squares
 (word*) init_squares::squares#0
 (word*) init_squares::squares#1
 (word*) init_squares::squares#2
+(word*) init_squares::squares#3
 (void()) main()
 (byte~) main::$1
 (dword~) main::$4
@@ -1467,10 +1485,8 @@ Adding number conversion cast (unumber) 1 in (number~) bsearch16u::$17 ← (numb
 Adding number conversion cast (unumber) bsearch16u::$17 in (number~) bsearch16u::$17 ← (unumber)(number) 1 * (const byte) SIZEOF_WORD
 Adding number conversion cast (unumber) 1 in (number~) bsearch16u::$18 ← (number) 1 * (const byte) SIZEOF_WORD
 Adding number conversion cast (unumber) bsearch16u::$18 in (number~) bsearch16u::$18 ← (unumber)(number) 1 * (const byte) SIZEOF_WORD
-Adding number conversion cast (unumber) 1 in (number~) init_squares::$2 ← (byte) NUM_SQUARES#7 - (number) 1
-Adding number conversion cast (unumber) init_squares::$2 in (number~) init_squares::$2 ← (byte) NUM_SQUARES#7 - (unumber)(number) 1
-Adding number conversion cast (unumber) 2 in (number~) init_squares::$3 ← (byte) init_squares::i#2 * (number) 2
-Adding number conversion cast (unumber) init_squares::$3 in (number~) init_squares::$3 ← (byte) init_squares::i#2 * (unumber)(number) 2
+Adding number conversion cast (unumber) 2 in (number~) init_squares::$3 ← (byte) init_squares::i#3 * (number) 2
+Adding number conversion cast (unumber) init_squares::$3 in (number~) init_squares::$3 ← (byte) init_squares::i#3 * (unumber)(number) 2
 Adding number conversion cast (unumber) 1 in (number~) init_squares::$4 ← (unumber~) init_squares::$3 + (number) 1
 Adding number conversion cast (unumber) init_squares::$4 in (number~) init_squares::$4 ← (unumber~) init_squares::$3 + (unumber)(number) 1
 Adding number conversion cast (unumber) 0 in *((byte*) init_font_hex::charset#2 + (byte) init_font_hex::idx#0) ← (number) 0
@@ -1521,12 +1537,12 @@ Adding number conversion cast (unumber) init_dist_screen::$7 in (number~) init_d
 Adding number conversion cast (unumber) $18 in (number~) init_dist_screen::$4 ← (number) $18 - (byte) init_dist_screen::y2#2
 Adding number conversion cast (unumber) init_dist_screen::$4 in (number~) init_dist_screen::$4 ← (unumber)(number) $18 - (byte) init_dist_screen::y2#2
 Adding number conversion cast (unumber) init_dist_screen::$5 in (number~) init_dist_screen::$5 ← (unumber~) init_dist_screen::$4
-Adding number conversion cast (unumber) init_dist_screen::$8 in (byte*) heap_head#36 ← phi( init_dist_screen::@2/(byte*) heap_head#40 init_dist_screen::@3/(byte*) heap_head#41 )
-  (byte) NUM_SQUARES#30 ← phi( init_dist_screen::@2/(byte) NUM_SQUARES#34 init_dist_screen::@3/(byte) NUM_SQUARES#35 )
+Adding number conversion cast (unumber) init_dist_screen::$8 in (byte*) heap_head#37 ← phi( init_dist_screen::@2/(byte*) heap_head#41 init_dist_screen::@3/(byte*) heap_head#42 )
+  (byte) NUM_SQUARES#32 ← phi( init_dist_screen::@2/(byte) NUM_SQUARES#36 init_dist_screen::@3/(byte) NUM_SQUARES#37 )
   (byte) init_dist_screen::y#7 ← phi( init_dist_screen::@2/(byte) init_dist_screen::y#9 init_dist_screen::@3/(byte) init_dist_screen::y#10 )
   (byte*) init_dist_screen::screen_bottomline#8 ← phi( init_dist_screen::@2/(byte*) init_dist_screen::screen_bottomline#11 init_dist_screen::@3/(byte*) init_dist_screen::screen_bottomline#12 )
   (byte*) init_dist_screen::screen_topline#8 ← phi( init_dist_screen::@2/(byte*) init_dist_screen::screen_topline#11 init_dist_screen::@3/(byte*) init_dist_screen::screen_topline#12 )
-  (word*) SQUARES#19 ← phi( init_dist_screen::@2/(word*) SQUARES#28 init_dist_screen::@3/(word*) SQUARES#29 )
+  (word*) SQUARES#19 ← phi( init_dist_screen::@2/(word*) SQUARES#29 init_dist_screen::@3/(word*) SQUARES#30 )
   (number~) init_dist_screen::$8 ← phi( init_dist_screen::@2/(unumber~) init_dist_screen::$7 init_dist_screen::@3/(unumber~) init_dist_screen::$5 )
 Adding number conversion cast (unumber) $13 in (bool~) init_dist_screen::$10 ← (byte) init_dist_screen::x#2 <= (number) $13
 Adding number conversion cast (unumber) 2 in (number~) init_dist_screen::$11 ← (byte) init_dist_screen::x#3 * (number) 2
@@ -1540,15 +1556,15 @@ Adding number conversion cast (unumber) init_dist_screen::$16 in (number~) init_
 Adding number conversion cast (unumber) $27 in (number~) init_dist_screen::$13 ← (number) $27 - (byte) init_dist_screen::x2#2
 Adding number conversion cast (unumber) init_dist_screen::$13 in (number~) init_dist_screen::$13 ← (unumber)(number) $27 - (byte) init_dist_screen::x2#2
 Adding number conversion cast (unumber) init_dist_screen::$14 in (number~) init_dist_screen::$14 ← (unumber~) init_dist_screen::$13
-Adding number conversion cast (unumber) init_dist_screen::$17 in (byte*) heap_head#42 ← phi( init_dist_screen::@8/(byte*) heap_head#45 init_dist_screen::@9/(byte*) heap_head#46 )
+Adding number conversion cast (unumber) init_dist_screen::$17 in (byte*) heap_head#43 ← phi( init_dist_screen::@8/(byte*) heap_head#46 init_dist_screen::@9/(byte*) heap_head#47 )
   (byte) init_dist_screen::y#11 ← phi( init_dist_screen::@8/(byte) init_dist_screen::y#12 init_dist_screen::@9/(byte) init_dist_screen::y#13 )
   (byte) init_dist_screen::xb#4 ← phi( init_dist_screen::@8/(byte) init_dist_screen::xb#5 init_dist_screen::@9/(byte) init_dist_screen::xb#6 )
   (byte*) init_dist_screen::screen_bottomline#7 ← phi( init_dist_screen::@8/(byte*) init_dist_screen::screen_bottomline#9 init_dist_screen::@9/(byte*) init_dist_screen::screen_bottomline#10 )
   (byte) init_dist_screen::x#6 ← phi( init_dist_screen::@8/(byte) init_dist_screen::x#7 init_dist_screen::@9/(byte) init_dist_screen::x#8 )
   (byte*) init_dist_screen::screen_topline#7 ← phi( init_dist_screen::@8/(byte*) init_dist_screen::screen_topline#9 init_dist_screen::@9/(byte*) init_dist_screen::screen_topline#10 )
-  (byte) NUM_SQUARES#21 ← phi( init_dist_screen::@8/(byte) NUM_SQUARES#26 init_dist_screen::@9/(byte) NUM_SQUARES#27 )
+  (byte) NUM_SQUARES#23 ← phi( init_dist_screen::@8/(byte) NUM_SQUARES#28 init_dist_screen::@9/(byte) NUM_SQUARES#29 )
   (word) init_dist_screen::yds#2 ← phi( init_dist_screen::@8/(word) init_dist_screen::yds#3 init_dist_screen::@9/(word) init_dist_screen::yds#4 )
-  (word*) SQUARES#18 ← phi( init_dist_screen::@8/(word*) SQUARES#31 init_dist_screen::@9/(word*) SQUARES#32 )
+  (word*) SQUARES#18 ← phi( init_dist_screen::@8/(word*) SQUARES#32 init_dist_screen::@9/(word*) SQUARES#33 )
   (number~) init_dist_screen::$17 ← phi( init_dist_screen::@8/(unumber~) init_dist_screen::$16 init_dist_screen::@9/(unumber~) init_dist_screen::$14 )
 Successful SSA optimization PassNAddNumberTypeConversions
 Inlining cast (void*) malloc::return#0 ← (void*)(byte*) malloc::mem#0
@@ -1582,7 +1598,6 @@ Simplifying constant integer cast 0
 Simplifying constant integer cast 1
 Simplifying constant integer cast 1
 Simplifying constant integer cast 1
-Simplifying constant integer cast 1
 Simplifying constant integer cast 2
 Simplifying constant integer cast 1
 Simplifying constant integer cast 0
@@ -1628,7 +1643,6 @@ Finalized signed number type (signed byte) 0
 Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) 1
-Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) 2
 Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) 0
@@ -1669,8 +1683,7 @@ Finalized unsigned number type (byte) $27
 Successful SSA optimization PassNFinalizeNumberTypeConversions
 Inferred type updated to byte in (unumber~) bsearch16u::$17 ← (byte) 1 * (const byte) SIZEOF_WORD
 Inferred type updated to byte in (unumber~) bsearch16u::$18 ← (byte) 1 * (const byte) SIZEOF_WORD
-Inferred type updated to byte in (unumber~) init_squares::$2 ← (byte) NUM_SQUARES#7 - (byte) 1
-Inferred type updated to byte in (unumber~) init_squares::$3 ← (byte) init_squares::i#2 * (byte) 2
+Inferred type updated to byte in (unumber~) init_squares::$3 ← (byte) init_squares::i#3 * (byte) 2
 Inferred type updated to byte in (unumber~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
 Inferred type updated to dword in (unumber~) clock::$0 ← (dword) $ffffffff - *((const dword*) CIA2_TIMER_AB)
 Inferred type updated to byte in (unumber~) print_byte_at::$2 ← (byte) print_byte_at::b#3 & (byte) $f
@@ -1713,13 +1726,17 @@ Alias (word*) bsearch16u::return#1 = (word*) bsearch16u::return#4
 Alias (word*) bsearch16u::items#0 = (word*~) bsearch16u::$15 
 Alias (word*~) bsearch16u::$2 = (word*~) bsearch16u::$1 
 Alias (word*) bsearch16u::return#2 = (word*~) bsearch16u::$4 
-Alias (byte*) heap_head#0 = (byte*) heap_head#29 (byte*) heap_head#25 
+Alias (byte*) heap_head#0 = (byte*) heap_head#30 (byte*) heap_head#25 
 Alias (word) malloc::size#0 = (byte~) init_squares::$0 
 Alias (void*) malloc::return#2 = (void*) malloc::return#4 
-Alias (byte) NUM_SQUARES#6 = (byte) NUM_SQUARES#7 
+Alias (byte) NUM_SQUARES#14 = (byte) NUM_SQUARES#6 
 Alias (byte*) heap_head#12 = (byte*) heap_head#3 
-Alias (byte*) heap_head#13 = (byte*) heap_head#20 (byte*) heap_head#4 
-Alias (word*) SQUARES#17 = (word*) SQUARES#8 (word*) SQUARES#2 
+Alias (word) init_squares::sqr#2 = (word) init_squares::sqr#3 
+Alias (word*) init_squares::squares#2 = (word*) init_squares::squares#3 
+Alias (byte) init_squares::i#2 = (byte) init_squares::i#3 
+Alias (byte) NUM_SQUARES#13 = (byte) NUM_SQUARES#7 
+Alias (byte*) heap_head#13 = (byte*) heap_head#26 (byte*) heap_head#20 (byte*) heap_head#4 
+Alias (word*) SQUARES#17 = (word*) SQUARES#26 (word*) SQUARES#8 (word*) SQUARES#2 
 Alias (word) sqr::return#0 = (word) sqr::return#4 (word) sqr::return#1 
 Alias (word*) bsearch16u::return#3 = (word*) bsearch16u::return#5 
 Alias (word*) SQUARES#10 = (word*) SQUARES#11 
@@ -1746,32 +1763,32 @@ Alias (byte*) print_word_at::at#1 = (byte*~) print_dword_at::$3
 Alias (byte) print_byte_at::b#2 = (byte) print_byte_at::b#3 
 Alias (byte*) print_byte_at::at#2 = (byte*) print_byte_at::at#3 
 Alias (byte*) print_char_at::at#1 = (byte*~) print_byte_at::$3 
-Alias (byte) NUM_SQUARES#14 = (byte) NUM_SQUARES#32 (byte) NUM_SQUARES#36 (byte) NUM_SQUARES#28 (byte) NUM_SQUARES#22 (byte) NUM_SQUARES#18 
-Alias (byte*) heap_head#21 = (byte*) heap_head#38 (byte*) heap_head#43 (byte*) heap_head#34 (byte*) heap_head#30 (byte*) heap_head#26 
-Alias (word*) SQUARES#21 = (word*) SQUARES#41 (word*) SQUARES#43 (word*) SQUARES#39 (word*) SQUARES#33 (word*) SQUARES#26 
+Alias (byte) NUM_SQUARES#16 = (byte) NUM_SQUARES#34 (byte) NUM_SQUARES#38 (byte) NUM_SQUARES#30 (byte) NUM_SQUARES#24 (byte) NUM_SQUARES#20 
+Alias (byte*) heap_head#21 = (byte*) heap_head#39 (byte*) heap_head#44 (byte*) heap_head#35 (byte*) heap_head#31 (byte*) heap_head#27 
+Alias (word*) SQUARES#21 = (word*) SQUARES#42 (word*) SQUARES#44 (word*) SQUARES#40 (word*) SQUARES#34 (word*) SQUARES#27 
 Alias (byte*) main::toD0181_screen#0 = (byte*) main::toD0181_screen#1 
 Alias (byte*) main::toD0181_gfx#0 = (byte*) main::toD0181_gfx#1 
 Alias (byte) main::toD0181_return#0 = (byte~) main::toD0181_$8 (byte) main::toD0181_return#2 (byte) main::toD0181_return#1 (byte) main::toD0181_return#3 (byte~) main::$1 
-Alias (byte) NUM_SQUARES#1 = (byte) NUM_SQUARES#9 (byte) NUM_SQUARES#33 (byte) NUM_SQUARES#29 (byte) NUM_SQUARES#23 (byte) NUM_SQUARES#19 (byte) NUM_SQUARES#15 (byte) NUM_SQUARES#10 (byte) NUM_SQUARES#2 
-Alias (byte*) heap_head#14 = (byte*) heap_head#5 (byte*) heap_head#39 (byte*) heap_head#35 (byte*) heap_head#31 (byte*) heap_head#27 (byte*) heap_head#22 (byte*) heap_head#15 (byte*) heap_head#6 
-Alias (word*) SQUARES#12 = (word*) SQUARES#3 (word*) SQUARES#42 (word*) SQUARES#40 (word*) SQUARES#34 (word*) SQUARES#27 (word*) SQUARES#22 (word*) SQUARES#13 (word*) SQUARES#4 
+Alias (byte) NUM_SQUARES#1 = (byte) NUM_SQUARES#9 (byte) NUM_SQUARES#35 (byte) NUM_SQUARES#31 (byte) NUM_SQUARES#25 (byte) NUM_SQUARES#21 (byte) NUM_SQUARES#17 (byte) NUM_SQUARES#10 (byte) NUM_SQUARES#2 
+Alias (byte*) heap_head#14 = (byte*) heap_head#5 (byte*) heap_head#40 (byte*) heap_head#36 (byte*) heap_head#32 (byte*) heap_head#28 (byte*) heap_head#22 (byte*) heap_head#15 (byte*) heap_head#6 
+Alias (word*) SQUARES#12 = (word*) SQUARES#3 (word*) SQUARES#43 (word*) SQUARES#41 (word*) SQUARES#35 (word*) SQUARES#28 (word*) SQUARES#22 (word*) SQUARES#13 (word*) SQUARES#4 
 Alias (dword) clock::return#2 = (dword) clock::return#4 
 Alias (dword) main::cyclecount#0 = (dword~) main::$5 
 Alias (byte*) main::toD0182_screen#0 = (byte*) main::toD0182_screen#1 
 Alias (byte*) main::toD0182_gfx#0 = (byte*) main::toD0182_gfx#1 
 Alias (byte) main::toD0182_return#0 = (byte~) main::toD0182_$8 (byte) main::toD0182_return#2 (byte) main::toD0182_return#1 (byte) main::toD0182_return#3 (byte~) main::$7 
 Alias (byte*) init_dist_screen::screen#1 = (byte*) init_dist_screen::screen#2 (byte*) init_dist_screen::screen_topline#0 
-Alias (byte) NUM_SQUARES#3 = (byte) NUM_SQUARES#38 
+Alias (byte) NUM_SQUARES#3 = (byte) NUM_SQUARES#40 
 Alias (byte*) heap_head#16 = (byte*) heap_head#7 
 Alias (word*) SQUARES#14 = (word*) SQUARES#5 
 Alias (byte*) init_dist_screen::screen_bottomline#0 = (byte*~) init_dist_screen::$1 
 Alias (byte) init_dist_screen::y2#0 = (byte~) init_dist_screen::$2 (byte) init_dist_screen::y2#1 (byte) init_dist_screen::y2#2 
-Alias (word*) SQUARES#28 = (word*) SQUARES#35 (word*) SQUARES#29 
+Alias (word*) SQUARES#29 = (word*) SQUARES#36 (word*) SQUARES#30 
 Alias (byte*) init_dist_screen::screen_topline#11 = (byte*) init_dist_screen::screen_topline#14 (byte*) init_dist_screen::screen_topline#12 
 Alias (byte*) init_dist_screen::screen_bottomline#11 = (byte*) init_dist_screen::screen_bottomline#14 (byte*) init_dist_screen::screen_bottomline#12 
 Alias (byte) init_dist_screen::y#10 = (byte) init_dist_screen::y#9 (byte) init_dist_screen::y#2 
-Alias (byte) NUM_SQUARES#34 = (byte) NUM_SQUARES#37 (byte) NUM_SQUARES#35 
-Alias (byte*) heap_head#40 = (byte*) heap_head#44 (byte*) heap_head#41 
+Alias (byte) NUM_SQUARES#36 = (byte) NUM_SQUARES#39 (byte) NUM_SQUARES#37 
+Alias (byte*) heap_head#41 = (byte*) heap_head#45 (byte*) heap_head#42 
 Alias (byte~) init_dist_screen::$7 = (byte~) init_dist_screen::$6 
 Alias (byte~) init_dist_screen::$5 = (byte~) init_dist_screen::$4 
 Alias (byte) init_dist_screen::yd#0 = (byte~) init_dist_screen::$8 
@@ -1779,59 +1796,59 @@ Alias (word) sqr::return#2 = (word) sqr::return#5
 Alias (byte*) init_dist_screen::screen_topline#6 = (byte*) init_dist_screen::screen_topline#8 
 Alias (byte*) init_dist_screen::screen_bottomline#6 = (byte*) init_dist_screen::screen_bottomline#8 
 Alias (byte) init_dist_screen::y#5 = (byte) init_dist_screen::y#7 
-Alias (byte) NUM_SQUARES#24 = (byte) NUM_SQUARES#30 
-Alias (byte*) heap_head#32 = (byte*) heap_head#36 
-Alias (word*) SQUARES#19 = (word*) SQUARES#36 
+Alias (byte) NUM_SQUARES#26 = (byte) NUM_SQUARES#32 
+Alias (byte*) heap_head#33 = (byte*) heap_head#37 
+Alias (word*) SQUARES#19 = (word*) SQUARES#37 
 Alias (word) init_dist_screen::yds#0 = (word~) init_dist_screen::$9 
 Alias (byte) init_dist_screen::x#2 = (byte) init_dist_screen::x#3 (byte) init_dist_screen::x#7 (byte) init_dist_screen::x#8 
-Alias (word*) SQUARES#15 = (word*) SQUARES#38 (word*) SQUARES#30 (word*) SQUARES#24 (word*) SQUARES#31 (word*) SQUARES#32 (word*) SQUARES#6 
+Alias (word*) SQUARES#15 = (word*) SQUARES#39 (word*) SQUARES#31 (word*) SQUARES#24 (word*) SQUARES#32 (word*) SQUARES#33 (word*) SQUARES#6 
 Alias (word) init_dist_screen::yds#3 = (word) init_dist_screen::yds#5 (word) init_dist_screen::yds#6 (word) init_dist_screen::yds#4 
-Alias (byte) NUM_SQUARES#11 = (byte) NUM_SQUARES#31 (byte) NUM_SQUARES#20 (byte) NUM_SQUARES#16 (byte) NUM_SQUARES#26 (byte) NUM_SQUARES#27 (byte) NUM_SQUARES#4 
+Alias (byte) NUM_SQUARES#11 = (byte) NUM_SQUARES#33 (byte) NUM_SQUARES#22 (byte) NUM_SQUARES#18 (byte) NUM_SQUARES#28 (byte) NUM_SQUARES#29 (byte) NUM_SQUARES#4 
 Alias (byte*) init_dist_screen::screen_topline#10 = (byte*) init_dist_screen::screen_topline#13 (byte*) init_dist_screen::screen_topline#4 (byte*) init_dist_screen::screen_topline#2 (byte*) init_dist_screen::screen_topline#9 
 Alias (byte*) init_dist_screen::screen_bottomline#10 = (byte*) init_dist_screen::screen_bottomline#13 (byte*) init_dist_screen::screen_bottomline#4 (byte*) init_dist_screen::screen_bottomline#2 (byte*) init_dist_screen::screen_bottomline#9 
 Alias (byte) init_dist_screen::xb#5 = (byte) init_dist_screen::xb#7 (byte) init_dist_screen::xb#8 (byte) init_dist_screen::xb#6 
 Alias (byte) init_dist_screen::y#12 = (byte) init_dist_screen::y#14 (byte) init_dist_screen::y#4 (byte) init_dist_screen::y#3 (byte) init_dist_screen::y#13 
-Alias (byte*) heap_head#17 = (byte*) heap_head#47 (byte*) heap_head#28 (byte*) heap_head#24 (byte*) heap_head#45 (byte*) heap_head#46 (byte*) heap_head#8 
+Alias (byte*) heap_head#17 = (byte*) heap_head#48 (byte*) heap_head#29 (byte*) heap_head#24 (byte*) heap_head#46 (byte*) heap_head#47 (byte*) heap_head#8 
 Alias (byte) init_dist_screen::x2#0 = (byte~) init_dist_screen::$11 (byte) init_dist_screen::x2#1 (byte) init_dist_screen::x2#2 
 Alias (byte~) init_dist_screen::$16 = (byte~) init_dist_screen::$15 
 Alias (byte~) init_dist_screen::$14 = (byte~) init_dist_screen::$13 
 Alias (byte) init_dist_screen::xd#0 = (byte~) init_dist_screen::$17 
 Alias (word) sqr::return#3 = (word) sqr::return#6 
 Alias (word) init_dist_screen::yds#1 = (word) init_dist_screen::yds#2 (word) init_dist_screen::yds#7 
-Alias (word*) SQUARES#18 = (word*) SQUARES#20 (word*) SQUARES#37 
-Alias (byte) NUM_SQUARES#13 = (byte) NUM_SQUARES#21 (byte) NUM_SQUARES#25 
+Alias (word*) SQUARES#18 = (word*) SQUARES#20 (word*) SQUARES#38 
+Alias (byte) NUM_SQUARES#15 = (byte) NUM_SQUARES#23 (byte) NUM_SQUARES#27 
 Alias (byte*) init_dist_screen::screen_topline#3 = (byte*) init_dist_screen::screen_topline#5 (byte*) init_dist_screen::screen_topline#7 
 Alias (byte) init_dist_screen::x#4 = (byte) init_dist_screen::x#5 (byte) init_dist_screen::x#6 
 Alias (byte*) init_dist_screen::screen_bottomline#3 = (byte*) init_dist_screen::screen_bottomline#5 (byte*) init_dist_screen::screen_bottomline#7 
 Alias (byte) init_dist_screen::xb#2 = (byte) init_dist_screen::xb#3 (byte) init_dist_screen::xb#4 
 Alias (byte) init_dist_screen::y#11 = (byte) init_dist_screen::y#8 (byte) init_dist_screen::y#6 
-Alias (byte*) heap_head#33 = (byte*) heap_head#37 (byte*) heap_head#42 
+Alias (byte*) heap_head#34 = (byte*) heap_head#38 (byte*) heap_head#43 
 Alias (word) init_dist_screen::xds#0 = (word~) init_dist_screen::$18 
 Alias (word) init_dist_screen::ds#0 = (word~) init_dist_screen::$19 
 Alias (byte) sqrt::return#2 = (byte) sqrt::return#4 
 Alias (byte) init_dist_screen::d#0 = (byte~) init_dist_screen::$20 
-Alias (byte) NUM_SQUARES#0 = (byte) NUM_SQUARES#17 
+Alias (byte) NUM_SQUARES#0 = (byte) NUM_SQUARES#19 
 Alias (word*) SQUARES#0 = (word*) SQUARES#25 
 Alias (byte) NUM_SQUARES#12 = (byte) NUM_SQUARES#5 
 Alias (byte*) heap_head#18 = (byte*) heap_head#9 
 Alias (word*) SQUARES#16 = (word*) SQUARES#7 
 Successful SSA optimization Pass2AliasElimination
 Alias (word) bsearch16u::key#1 = (word) bsearch16u::key#5 
-Alias (word*) SQUARES#19 = (word*) SQUARES#28 
+Alias (word*) SQUARES#19 = (word*) SQUARES#29 
 Alias (byte*) init_dist_screen::screen_topline#11 = (byte*) init_dist_screen::screen_topline#6 
 Alias (byte*) init_dist_screen::screen_bottomline#11 = (byte*) init_dist_screen::screen_bottomline#6 
 Alias (byte) init_dist_screen::y#10 = (byte) init_dist_screen::y#5 
-Alias (byte) NUM_SQUARES#24 = (byte) NUM_SQUARES#34 
-Alias (byte*) heap_head#32 = (byte*) heap_head#40 
+Alias (byte) NUM_SQUARES#26 = (byte) NUM_SQUARES#36 
+Alias (byte*) heap_head#33 = (byte*) heap_head#41 
 Alias (word*) SQUARES#15 = (word*) SQUARES#18 
 Alias (word) init_dist_screen::yds#1 = (word) init_dist_screen::yds#3 
-Alias (byte) NUM_SQUARES#11 = (byte) NUM_SQUARES#13 
+Alias (byte) NUM_SQUARES#11 = (byte) NUM_SQUARES#15 
 Alias (byte*) init_dist_screen::screen_topline#10 = (byte*) init_dist_screen::screen_topline#3 
 Alias (byte) init_dist_screen::x#2 = (byte) init_dist_screen::x#4 
 Alias (byte*) init_dist_screen::screen_bottomline#10 = (byte*) init_dist_screen::screen_bottomline#3 
 Alias (byte) init_dist_screen::xb#2 = (byte) init_dist_screen::xb#5 
 Alias (byte) init_dist_screen::y#11 = (byte) init_dist_screen::y#12 
-Alias (byte*) heap_head#17 = (byte*) heap_head#33 
+Alias (byte*) heap_head#17 = (byte*) heap_head#34 
 Successful SSA optimization Pass2AliasElimination
 Identical Phi Values (byte*) heap_head#10 (byte*) heap_head#19
 Identical Phi Values (word) malloc::size#1 (word) malloc::size#0
@@ -1839,9 +1856,10 @@ Identical Phi Values (byte) bsearch16u::num#7 (byte) bsearch16u::num#2
 Identical Phi Values (word*) bsearch16u::items#7 (word*) bsearch16u::items#1
 Identical Phi Values (word) bsearch16u::key#4 (word) bsearch16u::key#0
 Identical Phi Values (word) bsearch16u::key#1 (word) bsearch16u::key#4
-Identical Phi Values (byte) NUM_SQUARES#6 (byte) NUM_SQUARES#3
+Identical Phi Values (byte) NUM_SQUARES#14 (byte) NUM_SQUARES#3
 Identical Phi Values (byte*) heap_head#19 (byte*) heap_head#23
 Identical Phi Values (byte*) heap_head#12 (byte*) heap_head#1
+Identical Phi Values (byte) NUM_SQUARES#13 (byte) NUM_SQUARES#14
 Identical Phi Values (byte*) heap_head#13 (byte*) heap_head#12
 Identical Phi Values (word*) SQUARES#17 (word*) SQUARES#1
 Identical Phi Values (word) sqrt::val#1 (word) sqrt::val#0
@@ -1855,7 +1873,7 @@ Identical Phi Values (byte) init_font_hex::c1#2 (byte) init_font_hex::c1#4
 Identical Phi Values (byte) init_font_hex::c#2 (byte) init_font_hex::c#5
 Identical Phi Values (dword) print_dword_at::dw#1 (dword) print_dword_at::dw#0
 Identical Phi Values (byte*) print_dword_at::at#1 (byte*) print_dword_at::at#0
-Identical Phi Values (byte) NUM_SQUARES#14 (byte) NUM_SQUARES#0
+Identical Phi Values (byte) NUM_SQUARES#16 (byte) NUM_SQUARES#0
 Identical Phi Values (byte*) heap_head#21 (byte*) heap_head#0
 Identical Phi Values (word*) SQUARES#21 (word*) SQUARES#0
 Identical Phi Values (byte) NUM_SQUARES#1 (byte) NUM_SQUARES#11
@@ -1869,8 +1887,8 @@ Identical Phi Values (word*) SQUARES#14 (word*) SQUARES#17
 Identical Phi Values (byte*) init_dist_screen::screen_topline#10 (byte*) init_dist_screen::screen_topline#11
 Identical Phi Values (byte*) init_dist_screen::screen_bottomline#10 (byte*) init_dist_screen::screen_bottomline#11
 Identical Phi Values (byte) init_dist_screen::y#11 (byte) init_dist_screen::y#10
-Identical Phi Values (byte) NUM_SQUARES#11 (byte) NUM_SQUARES#24
-Identical Phi Values (byte*) heap_head#17 (byte*) heap_head#32
+Identical Phi Values (byte) NUM_SQUARES#11 (byte) NUM_SQUARES#26
+Identical Phi Values (byte*) heap_head#17 (byte*) heap_head#33
 Identical Phi Values (word*) SQUARES#15 (word*) SQUARES#19
 Identical Phi Values (word) init_dist_screen::yds#1 (word) init_dist_screen::yds#0
 Identical Phi Values (byte) NUM_SQUARES#12 (byte) NUM_SQUARES#1
@@ -1881,14 +1899,14 @@ Identical Phi Values (word*) SQUARES#9 (word*) SQUARES#19
 Identical Phi Values (byte*) init_font_hex::proto_hi#4 (byte*) init_font_hex::proto_hi#6
 Identical Phi Values (byte) init_font_hex::c#5 (byte) init_font_hex::c#6
 Identical Phi Values (word*) SQUARES#19 (word*) SQUARES#1
-Identical Phi Values (byte) NUM_SQUARES#24 (byte) NUM_SQUARES#3
-Identical Phi Values (byte*) heap_head#32 (byte*) heap_head#1
+Identical Phi Values (byte) NUM_SQUARES#26 (byte) NUM_SQUARES#3
+Identical Phi Values (byte*) heap_head#33 (byte*) heap_head#1
 Successful SSA optimization Pass2IdenticalPhiElimination
 Simple Condition (bool~) bsearch16u::$5 [13] if((byte) bsearch16u::num#3>(byte) 0) goto bsearch16u::@7
 Simple Condition (bool~) bsearch16u::$12 [25] if((signed word) bsearch16u::result#0!=(signed byte) 0) goto bsearch16u::@9
 Simple Condition (bool~) bsearch16u::$0 [28] if(*((word*) bsearch16u::items#2)<=(word) bsearch16u::key#0) goto bsearch16u::@1
 Simple Condition (bool~) bsearch16u::$14 [32] if((signed word) bsearch16u::result#0<=(signed byte) 0) goto bsearch16u::@10
-Simple Condition (bool~) init_squares::$5 [77] if((byte) init_squares::i#1!=rangelast(0,init_squares::$2)) goto init_squares::@1
+Simple Condition (bool~) init_squares::$2 [70] if((byte) init_squares::i#2<(byte) NUM_SQUARES#3) goto init_squares::@2
 Simple Condition (bool~) init_font_hex::$3 [124] if((byte) init_font_hex::i#1!=rangelast(0,4)) goto init_font_hex::@3
 Simple Condition (bool~) init_font_hex::$4 [134] if((byte) init_font_hex::c1#1!=rangelast(0,$f)) goto init_font_hex::@2
 Simple Condition (bool~) init_font_hex::$5 [139] if((byte) init_font_hex::c#1!=rangelast(0,$f)) goto init_font_hex::@1
@@ -1952,7 +1970,7 @@ Successful SSA optimization PassNSimplifyExpressionWithZero
 Simplifying expression containing zero CIA_TIMER_CONTROL_START in [150] *((const byte*) CIA2_TIMER_A_CONTROL) ← (const byte) CIA_TIMER_CONTROL_START|(const byte) CIA_TIMER_CONTROL_CONTINUOUS
 Successful SSA optimization PassNSimplifyExpressionWithZero
 Eliminating unused variable (byte*) heap_head#1 and assignment [1] (byte*) heap_head#1 ← (byte*) malloc::mem#0
-Eliminating unused variable (byte) init_font_hex::idx#4 and assignment [67] (byte) init_font_hex::idx#4 ← ++ (byte) init_font_hex::idx#3
+Eliminating unused variable (byte) init_font_hex::idx#4 and assignment [66] (byte) init_font_hex::idx#4 ← ++ (byte) init_font_hex::idx#3
 Eliminating unused constant (const byte) CIA_TIMER_CONTROL_STOP
 Eliminating unused constant (const byte) CIA_TIMER_CONTROL_CONTINUOUS
 Eliminating unused constant (const byte) CIA_TIMER_CONTROL_A_COUNT_CYCLES
@@ -1980,17 +1998,15 @@ Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) $d
 Successful SSA optimization PassNFinalizeNumberTypeConversions
 Constant right-side identified [22] (word) malloc::size#0 ← (const byte) NUM_SQUARES#3 * (const byte) SIZEOF_WORD
-Constant right-side identified [28] (byte~) init_squares::$2 ← (const byte) NUM_SQUARES#3 - (byte) 1
-Constant right-side identified [54] (byte) init_font_hex::idx#1 ← ++ (const byte) init_font_hex::idx#0
-Constant right-side identified [93] (byte*) print_word_at::at#1 ← (const byte*) print_dword_at::at#0 + (byte) 4
-Constant right-side identified [110] (word~) main::toD0181_$1 ← (const word) main::toD0181_$0 & (word) $3fff
-Constant right-side identified [113] (byte~) main::toD0181_$5 ← > (const word) main::toD0181_$4
-Constant right-side identified [126] (word~) main::toD0182_$1 ← (const word) main::toD0182_$0 & (word) $3fff
-Constant right-side identified [129] (byte~) main::toD0182_$5 ← > (const word) main::toD0182_$4
-Constant right-side identified [136] (byte*) init_dist_screen::screen_bottomline#0 ← (const byte*) init_dist_screen::screen#0 + (word)(number) $28*(number) $18
+Constant right-side identified [53] (byte) init_font_hex::idx#1 ← ++ (const byte) init_font_hex::idx#0
+Constant right-side identified [92] (byte*) print_word_at::at#1 ← (const byte*) print_dword_at::at#0 + (byte) 4
+Constant right-side identified [109] (word~) main::toD0181_$1 ← (const word) main::toD0181_$0 & (word) $3fff
+Constant right-side identified [112] (byte~) main::toD0181_$5 ← > (const word) main::toD0181_$4
+Constant right-side identified [125] (word~) main::toD0182_$1 ← (const word) main::toD0182_$0 & (word) $3fff
+Constant right-side identified [128] (byte~) main::toD0182_$5 ← > (const word) main::toD0182_$4
+Constant right-side identified [135] (byte*) init_dist_screen::screen_bottomline#0 ← (const byte*) init_dist_screen::screen#0 + (word)(number) $28*(number) $18
 Successful SSA optimization Pass2ConstantRValueConsolidation
 Constant (const word) malloc::size#0 = NUM_SQUARES#3*SIZEOF_WORD
-Constant (const byte) init_squares::$2 = NUM_SQUARES#3-1
 Constant (const byte) init_font_hex::idx#1 = ++init_font_hex::idx#0
 Constant (const byte*) print_word_at::at#1 = print_dword_at::at#0+4
 Constant (const word) main::toD0181_$1 = main::toD0181_$0&$3fff
@@ -1999,16 +2015,6 @@ Constant (const word) main::toD0182_$1 = main::toD0182_$0&$3fff
 Constant (const byte) main::toD0182_$5 = >main::toD0182_$4
 Constant (const byte*) init_dist_screen::screen_bottomline#0 = init_dist_screen::screen#0+(word)$28*$18
 Successful SSA optimization Pass2ConstantIdentification
-Resolved ranged next value [35] init_squares::i#1 ← ++ init_squares::i#2 to ++
-Resolved ranged comparison value [36] if(init_squares::i#1!=rangelast(0,init_squares::$2)) goto init_squares::@1 to (const byte) init_squares::$2+(number) 1
-Adding number conversion cast (unumber) init_squares::$2+1 in if((byte) init_squares::i#1!=(const byte) init_squares::$2+(number) 1) goto init_squares::@1
-Adding number conversion cast (unumber) 1 in if((byte) init_squares::i#1!=(unumber)(const byte) init_squares::$2+(number) 1) goto init_squares::@1
-Successful SSA optimization PassNAddNumberTypeConversions
-Simplifying constant integer cast (const byte) init_squares::$2+(unumber)(number) 1
-Simplifying constant integer cast 1
-Successful SSA optimization PassNCastSimplification
-Finalized unsigned number type (byte) 1
-Successful SSA optimization PassNFinalizeNumberTypeConversions
 Constant right-side identified [0] (byte*) malloc::mem#0 ← (const byte*) heap_head#0 - (const word) malloc::size#0
 Constant right-side identified [106] (word~) main::toD0181_$2 ← (const word) main::toD0181_$1 * (byte) 4
 Constant right-side identified [108] (byte~) main::toD0181_$6 ← (const byte) main::toD0181_$5 / (byte) 4
@@ -2052,7 +2058,7 @@ Inlining Noop Cast [6] (signed word~) bsearch16u::$8 ← (signed word)(word) bse
 Inlining Noop Cast [7] (signed word~) bsearch16u::$9 ← (signed word)*((word*) bsearch16u::pivot#0) keeping *(bsearch16u::pivot#0)
 Successful SSA optimization Pass2NopCastInlining
 Rewriting multiplication to use shift [4] (byte~) bsearch16u::$16 ← (byte~) bsearch16u::$6 * (const byte) SIZEOF_WORD
-Rewriting multiplication to use shift [24] (byte~) init_squares::$3 ← (byte) init_squares::i#2 * (byte) 2
+Rewriting multiplication to use shift [25] (byte~) init_squares::$3 ← (byte) init_squares::i#2 * (byte) 2
 Rewriting multiplication to use shift [31] (byte~) sqr::$0 ← (byte) sqr::val#2 * (const byte) SIZEOF_WORD
 Rewriting division to use shift [39] (word~) sqrt::$1 ← (word~) sqrt::$3 / (const byte) SIZEOF_WORD
 Rewriting multiplication to use shift [112] (byte) init_dist_screen::y2#0 ← (byte) init_dist_screen::y#10 * (byte) 2
@@ -2123,13 +2129,11 @@ Constant inlined init_font_hex::c#0 = (byte) 0
 Constant inlined init_squares::$1 = (const void*) malloc::return#0
 Constant inlined print_word_at::at#1 = (const byte*) main::BASE_SCREEN+(byte) 4
 Constant inlined print_word_at::at#0 = (const byte*) main::BASE_SCREEN
-Constant inlined init_squares::$2 = (const byte) NUM_SQUARES#3-(byte) 1
 Constant inlined bsearch16u::items#1 = (const word*) SQUARES#1
 Successful SSA optimization Pass2ConstantInlining
 Simplifying constant integer increment ++0
 Successful SSA optimization Pass2ConstantSimplification
 Added new block during phi lifting bsearch16u::@18(between bsearch16u::@9 and bsearch16u::@10)
-Added new block during phi lifting init_squares::@4(between init_squares::@1 and init_squares::@1)
 Added new block during phi lifting init_font_hex::@7(between init_font_hex::@5 and init_font_hex::@1)
 Added new block during phi lifting init_font_hex::@8(between init_font_hex::@4 and init_font_hex::@2)
 Added new block during phi lifting init_font_hex::@9(between init_font_hex::@3 and init_font_hex::@3)
@@ -2156,7 +2160,7 @@ Adding NOP phi() at start of init_dist_screen
 Adding NOP phi() at start of init_dist_screen::@19
 Adding NOP phi() at start of bsearch16u
 Adding NOP phi() at start of init_squares
-Adding NOP phi() at start of init_squares::@3
+Adding NOP phi() at start of init_squares::@7
 Adding NOP phi() at start of malloc
 Adding NOP phi() at start of init_font_hex
 CALL GRAPH
@@ -2201,9 +2205,9 @@ Coalesced [152] bsearch16u::num#9 ← bsearch16u::num#0
 Coalesced [153] bsearch16u::items#10 ← bsearch16u::items#8
 Coalesced [154] bsearch16u::num#11 ← bsearch16u::num#3
 Coalesced (already) [155] bsearch16u::items#12 ← bsearch16u::items#2
-Coalesced [172] init_squares::sqr#3 ← init_squares::sqr#1
-Coalesced [173] init_squares::squares#3 ← init_squares::squares#1
-Coalesced [174] init_squares::i#3 ← init_squares::i#1
+Coalesced [172] init_squares::i#4 ← init_squares::i#1
+Coalesced [173] init_squares::sqr#4 ← init_squares::sqr#1
+Coalesced [174] init_squares::squares#4 ← init_squares::squares#1
 Coalesced [185] init_font_hex::charset#9 ← init_font_hex::charset#5
 Coalesced [207] init_font_hex::charset#8 ← init_font_hex::charset#0
 Coalesced [208] init_font_hex::proto_hi#7 ← init_font_hex::proto_hi#1
@@ -2228,8 +2232,7 @@ Culled Empty Block (label) init_dist_screen::@19
 Culled Empty Block (label) init_dist_screen::@23
 Culled Empty Block (label) bsearch16u::@1
 Culled Empty Block (label) bsearch16u::@18
-Culled Empty Block (label) init_squares::@3
-Culled Empty Block (label) init_squares::@4
+Culled Empty Block (label) init_squares::@7
 Culled Empty Block (label) init_font_hex::@7
 Culled Empty Block (label) init_font_hex::@8
 Culled Empty Block (label) init_font_hex::@9
@@ -2529,21 +2532,23 @@ init_squares: scope:[init_squares]  from init_dist_screen
   [119] phi()
   [120] call malloc 
   to:init_squares::@1
-init_squares::@1: scope:[init_squares]  from init_squares init_squares::@1
-  [121] (byte) init_squares::i#2 ← phi( init_squares::@1/(byte) init_squares::i#1 init_squares/(byte) 0 )
-  [121] (word*) init_squares::squares#2 ← phi( init_squares::@1/(word*) init_squares::squares#1 init_squares/(const word*) SQUARES#1 )
-  [121] (word) init_squares::sqr#2 ← phi( init_squares::@1/(word) init_squares::sqr#1 init_squares/(word) 0 )
-  [122] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
-  [123] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
-  [124] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1
-  [125] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
-  [126] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4
-  [127] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2
-  [128] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1
+init_squares::@1: scope:[init_squares]  from init_squares init_squares::@2
+  [121] (word*) init_squares::squares#2 ← phi( init_squares::@2/(word*) init_squares::squares#1 init_squares/(const word*) SQUARES#1 )
+  [121] (word) init_squares::sqr#2 ← phi( init_squares::@2/(word) init_squares::sqr#1 init_squares/(word) 0 )
+  [121] (byte) init_squares::i#2 ← phi( init_squares::@2/(byte) init_squares::i#1 init_squares/(byte) 0 )
+  [122] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2
   to:init_squares::@return
 init_squares::@return: scope:[init_squares]  from init_squares::@1
-  [129] return 
+  [123] return 
   to:@return
+init_squares::@2: scope:[init_squares]  from init_squares::@1
+  [124] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
+  [125] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
+  [126] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1
+  [127] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
+  [128] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4
+  [129] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2
+  to:init_squares::@1
 
 (void*()) malloc((word) malloc::size)
 malloc: scope:[malloc]  from init_squares
@@ -2711,14 +2716,14 @@ VARIABLE REGISTER WEIGHTS
 (byte~) init_squares::$3 22.0
 (byte~) init_squares::$4 22.0
 (byte) init_squares::i
-(byte) init_squares::i#1 16.5
-(byte) init_squares::i#2 5.5
+(byte) init_squares::i#1 22.0
+(byte) init_squares::i#2 6.285714285714286
 (word) init_squares::sqr
-(word) init_squares::sqr#1 7.333333333333333
-(word) init_squares::sqr#2 6.6000000000000005
+(word) init_squares::sqr#1 11.0
+(word) init_squares::sqr#2 5.5
 (word*) init_squares::squares
-(word*) init_squares::squares#1 3.6666666666666665
-(word*) init_squares::squares#2 16.5
+(word*) init_squares::squares#1 4.4
+(word*) init_squares::squares#2 11.0
 (void()) main()
 (dword~) main::$4 4.0
 (dword) main::cyclecount
@@ -2803,9 +2808,9 @@ Initial phi equivalence classes
 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 ]
 [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ]
 [ sqr::val#2 sqr::val#1 sqr::val#0 ]
+[ init_squares::i#2 init_squares::i#1 ]
 [ init_squares::sqr#2 init_squares::sqr#1 ]
 [ init_squares::squares#2 init_squares::squares#1 ]
-[ init_squares::i#2 init_squares::i#1 ]
 [ init_font_hex::proto_hi#6 init_font_hex::proto_hi#1 ]
 [ init_font_hex::c#6 init_font_hex::c#1 ]
 [ init_font_hex::charset#2 init_font_hex::charset#5 init_font_hex::charset#0 ]
@@ -2865,9 +2870,9 @@ Complete equivalence classes
 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 ]
 [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ]
 [ sqr::val#2 sqr::val#1 sqr::val#0 ]
+[ init_squares::i#2 init_squares::i#1 ]
 [ init_squares::sqr#2 init_squares::sqr#1 ]
 [ init_squares::squares#2 init_squares::squares#1 ]
-[ init_squares::i#2 init_squares::i#1 ]
 [ init_font_hex::proto_hi#6 init_font_hex::proto_hi#1 ]
 [ init_font_hex::c#6 init_font_hex::c#1 ]
 [ init_font_hex::charset#2 init_font_hex::charset#5 init_font_hex::charset#0 ]
@@ -2926,9 +2931,9 @@ Allocated zp[1]:22 [ init_dist_screen::xd#0 init_dist_screen::$16 init_dist_scre
 Allocated zp[2]:23 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 ]
 Allocated zp[1]:25 [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ]
 Allocated zp[1]:26 [ sqr::val#2 sqr::val#1 sqr::val#0 ]
-Allocated zp[2]:27 [ init_squares::sqr#2 init_squares::sqr#1 ]
-Allocated zp[2]:29 [ init_squares::squares#2 init_squares::squares#1 ]
-Allocated zp[1]:31 [ init_squares::i#2 init_squares::i#1 ]
+Allocated zp[1]:27 [ init_squares::i#2 init_squares::i#1 ]
+Allocated zp[2]:28 [ init_squares::sqr#2 init_squares::sqr#1 ]
+Allocated zp[2]:30 [ init_squares::squares#2 init_squares::squares#1 ]
 Allocated zp[2]:32 [ init_font_hex::proto_hi#6 init_font_hex::proto_hi#1 ]
 Allocated zp[1]:34 [ init_font_hex::c#6 init_font_hex::c#1 ]
 Allocated zp[2]:35 [ init_font_hex::charset#2 init_font_hex::charset#5 init_font_hex::charset#0 ]
@@ -3811,45 +3816,50 @@ sqr: {
 init_squares: {
     .label __3 = $64
     .label __4 = $65
-    .label squares = $1d
-    .label sqr = $1b
-    .label i = $1f
+    .label squares = $1e
+    .label sqr = $1c
+    .label i = $1b
     // [120] call malloc 
     // [130] phi from init_squares to malloc [phi:init_squares->malloc]
   malloc_from_init_squares:
     jsr malloc
     // [121] phi from init_squares to init_squares::@1 [phi:init_squares->init_squares::@1]
   __b1_from_init_squares:
-    // [121] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares->init_squares::@1#0] -- vbuz1=vbuc1 
-    lda #0
-    sta.z i
-    // [121] phi (word*) init_squares::squares#2 = (const word*) SQUARES#1 [phi:init_squares->init_squares::@1#1] -- pwuz1=pwuc1 
+    // [121] phi (word*) init_squares::squares#2 = (const word*) SQUARES#1 [phi:init_squares->init_squares::@1#0] -- pwuz1=pwuc1 
     lda #<SQUARES
     sta.z squares
     lda #>SQUARES
     sta.z squares+1
-    // [121] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares->init_squares::@1#2] -- vwuz1=vwuc1 
+    // [121] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares->init_squares::@1#1] -- vwuz1=vwuc1 
     lda #<0
     sta.z sqr
     lda #>0
     sta.z sqr+1
-    jmp __b1
-    // [121] phi from init_squares::@1 to init_squares::@1 [phi:init_squares::@1->init_squares::@1]
-  __b1_from___b1:
-    // [121] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@1->init_squares::@1#0] -- register_copy 
-    // [121] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@1->init_squares::@1#1] -- register_copy 
-    // [121] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@1->init_squares::@1#2] -- register_copy 
+    // [121] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares->init_squares::@1#2] -- vbuz1=vbuc1 
+    lda #0
+    sta.z i
     jmp __b1
     // init_squares::@1
   __b1:
-    // [122] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
+    // [122] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2 -- vbuz1_lt_vbuc1_then_la1 
+    lda.z i
+    cmp #NUM_SQUARES
+    bcc __b2
+    jmp __breturn
+    // init_squares::@return
+  __breturn:
+    // [123] return 
+    rts
+    // init_squares::@2
+  __b2:
+    // [124] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
     ldy #0
     lda.z sqr
     sta (squares),y
     iny
     lda.z sqr+1
     sta (squares),y
-    // [123] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
+    // [125] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
     lda #SIZEOF_WORD
     clc
     adc.z squares
@@ -3857,15 +3867,15 @@ init_squares: {
     bcc !+
     inc.z squares+1
   !:
-    // [124] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuz1=vbuz2_rol_1 
+    // [126] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuz1=vbuz2_rol_1 
     lda.z i
     asl
     sta.z __3
-    // [125] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuz1=vbuz2_plus_1 
+    // [127] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuz1=vbuz2_plus_1 
     ldy.z __3
     iny
     sty.z __4
-    // [126] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuz2 
+    // [128] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuz2 
     lda.z __4
     clc
     adc.z sqr
@@ -3873,17 +3883,14 @@ init_squares: {
     bcc !+
     inc.z sqr+1
   !:
-    // [127] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuz1=_inc_vbuz1 
+    // [129] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuz1=_inc_vbuz1 
     inc.z i
-    // [128] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1 -- vbuz1_neq_vbuc1_then_la1 
-    lda #NUM_SQUARES-1+1
-    cmp.z i
-    bne __b1_from___b1
-    jmp __breturn
-    // init_squares::@return
-  __breturn:
-    // [129] return 
-    rts
+    // [121] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
+  __b1_from___b2:
+    // [121] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@2->init_squares::@1#0] -- register_copy 
+    // [121] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
+    // [121] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@2->init_squares::@1#2] -- register_copy 
+    jmp __b1
 }
   // malloc
 // Allocates a block of size bytes of memory, returning a pointer to the beginning of the block.
@@ -4164,12 +4171,12 @@ Statement [110] if((signed word) bsearch16u::result#0<=(signed byte) 0) goto bse
 Statement [111] (word*) bsearch16u::items#0 ← (word*) bsearch16u::pivot#0 + (byte) 1*(const byte) SIZEOF_WORD [ bsearch16u::key#0 bsearch16u::num#3 bsearch16u::items#0 ] ( main:2::init_dist_screen:10::sqrt:77::bsearch16u:89 [ init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 bsearch16u::key#0 bsearch16u::num#3 bsearch16u::items#0 ] ) always clobbers reg byte a 
 Statement [116] (byte~) sqr::$0 ← (byte) sqr::val#2 << (byte) 1 [ sqr::$0 ] ( main:2::init_dist_screen:10::sqr:57 [ init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 sqr::$0 ] main:2::init_dist_screen:10::sqr:72 [ init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 sqr::$0 ] ) always clobbers reg byte a 
 Statement [117] (word) sqr::return#0 ← *((const word*) SQUARES#1 + (byte~) sqr::$0) [ sqr::return#0 ] ( main:2::init_dist_screen:10::sqr:57 [ init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 sqr::return#0 ] main:2::init_dist_screen:10::sqr:72 [ init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 sqr::return#0 ] ) always clobbers reg byte a 
-Statement [122] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ) always clobbers reg byte a reg byte y 
-Removing always clobbered register reg byte a as potential for zp[1]:31 [ init_squares::i#2 init_squares::i#1 ]
-Removing always clobbered register reg byte y as potential for zp[1]:31 [ init_squares::i#2 init_squares::i#1 ]
-Statement [123] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ) always clobbers reg byte a 
-Statement [124] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
-Statement [126] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [124] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ) always clobbers reg byte a reg byte y 
+Removing always clobbered register reg byte a as potential for zp[1]:27 [ init_squares::i#2 init_squares::i#1 ]
+Removing always clobbered register reg byte y as potential for zp[1]:27 [ init_squares::i#2 init_squares::i#1 ]
+Statement [125] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [126] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
+Statement [128] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
 Statement [132] *((const byte*) CIA2_TIMER_A_CONTROL) ← (byte) 0 [ ] ( main:2::clock_start:8 [ ] ) always clobbers reg byte a 
 Statement [133] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A [ ] ( main:2::clock_start:8 [ ] ) always clobbers reg byte a 
 Statement [134] *((const dword*) CIA2_TIMER_AB) ← (dword) $ffffffff [ ] ( main:2::clock_start:8 [ ] ) always clobbers reg byte a 
@@ -4243,10 +4250,10 @@ Statement [110] if((signed word) bsearch16u::result#0<=(signed byte) 0) goto bse
 Statement [111] (word*) bsearch16u::items#0 ← (word*) bsearch16u::pivot#0 + (byte) 1*(const byte) SIZEOF_WORD [ bsearch16u::key#0 bsearch16u::num#3 bsearch16u::items#0 ] ( main:2::init_dist_screen:10::sqrt:77::bsearch16u:89 [ init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 bsearch16u::key#0 bsearch16u::num#3 bsearch16u::items#0 ] ) always clobbers reg byte a 
 Statement [116] (byte~) sqr::$0 ← (byte) sqr::val#2 << (byte) 1 [ sqr::$0 ] ( main:2::init_dist_screen:10::sqr:57 [ init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 sqr::$0 ] main:2::init_dist_screen:10::sqr:72 [ init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 sqr::$0 ] ) always clobbers reg byte a 
 Statement [117] (word) sqr::return#0 ← *((const word*) SQUARES#1 + (byte~) sqr::$0) [ sqr::return#0 ] ( main:2::init_dist_screen:10::sqr:57 [ init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 sqr::return#0 ] main:2::init_dist_screen:10::sqr:72 [ init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 sqr::return#0 ] ) always clobbers reg byte a 
-Statement [122] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ) always clobbers reg byte a reg byte y 
-Statement [123] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ) always clobbers reg byte a 
-Statement [124] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
-Statement [126] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [124] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ) always clobbers reg byte a reg byte y 
+Statement [125] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [126] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
+Statement [128] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
 Statement [132] *((const byte*) CIA2_TIMER_A_CONTROL) ← (byte) 0 [ ] ( main:2::clock_start:8 [ ] ) always clobbers reg byte a 
 Statement [133] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A [ ] ( main:2::clock_start:8 [ ] ) always clobbers reg byte a 
 Statement [134] *((const dword*) CIA2_TIMER_AB) ← (dword) $ffffffff [ ] ( main:2::clock_start:8 [ ] ) always clobbers reg byte a 
@@ -4312,10 +4319,10 @@ Statement [110] if((signed word) bsearch16u::result#0<=(signed byte) 0) goto bse
 Statement [111] (word*) bsearch16u::items#0 ← (word*) bsearch16u::pivot#0 + (byte) 1*(const byte) SIZEOF_WORD [ bsearch16u::key#0 bsearch16u::num#3 bsearch16u::items#0 ] ( main:2::init_dist_screen:10::sqrt:77::bsearch16u:89 [ init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 bsearch16u::key#0 bsearch16u::num#3 bsearch16u::items#0 ] ) always clobbers reg byte a 
 Statement [116] (byte~) sqr::$0 ← (byte) sqr::val#2 << (byte) 1 [ sqr::$0 ] ( main:2::init_dist_screen:10::sqr:57 [ init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 sqr::$0 ] main:2::init_dist_screen:10::sqr:72 [ init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 sqr::$0 ] ) always clobbers reg byte a 
 Statement [117] (word) sqr::return#0 ← *((const word*) SQUARES#1 + (byte~) sqr::$0) [ sqr::return#0 ] ( main:2::init_dist_screen:10::sqr:57 [ init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 sqr::return#0 ] main:2::init_dist_screen:10::sqr:72 [ init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 sqr::return#0 ] ) always clobbers reg byte a 
-Statement [122] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ) always clobbers reg byte a reg byte y 
-Statement [123] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ) always clobbers reg byte a 
-Statement [124] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
-Statement [126] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [124] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ) always clobbers reg byte a reg byte y 
+Statement [125] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [126] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
+Statement [128] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:2::init_dist_screen:10::init_squares:50 [ init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
 Statement [132] *((const byte*) CIA2_TIMER_A_CONTROL) ← (byte) 0 [ ] ( main:2::clock_start:8 [ ] ) always clobbers reg byte a 
 Statement [133] *((const byte*) CIA2_TIMER_B_CONTROL) ← (const byte) CIA_TIMER_CONTROL_B_COUNT_UNDERFLOW_A [ ] ( main:2::clock_start:8 [ ] ) always clobbers reg byte a 
 Statement [134] *((const dword*) CIA2_TIMER_AB) ← (dword) $ffffffff [ ] ( main:2::clock_start:8 [ ] ) always clobbers reg byte a 
@@ -4345,9 +4352,9 @@ Potential registers zp[1]:22 [ init_dist_screen::xd#0 init_dist_screen::$16 init
 Potential registers zp[2]:23 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 ] : zp[2]:23 , 
 Potential registers zp[1]:25 [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ] : zp[1]:25 , reg byte x , 
 Potential registers zp[1]:26 [ sqr::val#2 sqr::val#1 sqr::val#0 ] : zp[1]:26 , reg byte a , reg byte x , reg byte y , 
-Potential registers zp[2]:27 [ init_squares::sqr#2 init_squares::sqr#1 ] : zp[2]:27 , 
-Potential registers zp[2]:29 [ init_squares::squares#2 init_squares::squares#1 ] : zp[2]:29 , 
-Potential registers zp[1]:31 [ init_squares::i#2 init_squares::i#1 ] : zp[1]:31 , reg byte x , 
+Potential registers zp[1]:27 [ init_squares::i#2 init_squares::i#1 ] : zp[1]:27 , reg byte x , 
+Potential registers zp[2]:28 [ init_squares::sqr#2 init_squares::sqr#1 ] : zp[2]:28 , 
+Potential registers zp[2]:30 [ init_squares::squares#2 init_squares::squares#1 ] : zp[2]:30 , 
 Potential registers zp[2]:32 [ init_font_hex::proto_hi#6 init_font_hex::proto_hi#1 ] : zp[2]:32 , 
 Potential registers zp[1]:34 [ init_font_hex::c#6 init_font_hex::c#1 ] : zp[1]:34 , reg byte x , 
 Potential registers zp[2]:35 [ init_font_hex::charset#2 init_font_hex::charset#5 init_font_hex::charset#0 ] : zp[2]:35 , 
@@ -4397,7 +4404,7 @@ Uplift Scope [init_font_hex] 2,168.83: zp[1]:40 [ init_font_hex::i#2 init_font_h
 Uplift Scope [init_dist_screen] 707: zp[1]:22 [ init_dist_screen::xd#0 init_dist_screen::$16 init_dist_screen::$14 ] 221.24: zp[1]:21 [ init_dist_screen::xb#2 init_dist_screen::xb#1 ] 202: zp[1]:69 [ init_dist_screen::x2#0 ] 202: zp[2]:72 [ init_dist_screen::xds#0 ] 202: zp[2]:74 [ init_dist_screen::ds#0 ] 131.3: zp[1]:20 [ init_dist_screen::x#2 init_dist_screen::x#1 ] 126.25: zp[1]:79 [ init_dist_screen::d#0 ] 77: zp[1]:19 [ init_dist_screen::yd#0 init_dist_screen::$7 init_dist_screen::$5 ] 22: zp[1]:64 [ init_dist_screen::y2#0 ] 17.47: zp[1]:14 [ init_dist_screen::y#10 init_dist_screen::y#1 ] 14.12: zp[2]:17 [ init_dist_screen::screen_bottomline#11 init_dist_screen::screen_bottomline#1 ] 12.5: zp[2]:15 [ init_dist_screen::screen_topline#11 init_dist_screen::screen_topline#1 ] 4.87: zp[2]:67 [ init_dist_screen::yds#0 ] 
 Uplift Scope [sqr] 338: zp[1]:26 [ sqr::val#2 sqr::val#1 sqr::val#0 ] 202: zp[2]:70 [ sqr::return#3 ] 28.5: zp[2]:98 [ sqr::return#0 ] 22: zp[2]:65 [ sqr::return#2 ] 4: zp[1]:97 [ sqr::$0 ] 
 Uplift Scope [sqrt] 202: zp[1]:78 [ sqrt::return#2 ] 103: zp[2]:76 [ sqrt::val#0 ] 34.33: zp[1]:90 [ sqrt::return#0 ] 4: zp[2]:84 [ sqrt::found#0 ] 4: zp[2]:86 [ sqrt::$3 ] 2: zp[2]:88 [ sqrt::$1 ] 
-Uplift Scope [init_squares] 22: zp[1]:31 [ init_squares::i#2 init_squares::i#1 ] 22: zp[1]:100 [ init_squares::$3 ] 22: zp[1]:101 [ init_squares::$4 ] 20.17: zp[2]:29 [ init_squares::squares#2 init_squares::squares#1 ] 13.93: zp[2]:27 [ init_squares::sqr#2 init_squares::sqr#1 ] 
+Uplift Scope [init_squares] 28.29: zp[1]:27 [ init_squares::i#2 init_squares::i#1 ] 22: zp[1]:100 [ init_squares::$3 ] 22: zp[1]:101 [ init_squares::$4 ] 16.5: zp[2]:28 [ init_squares::sqr#2 init_squares::sqr#1 ] 15.4: zp[2]:30 [ init_squares::squares#2 init_squares::squares#1 ] 
 Uplift Scope [print_char_at] 12: zp[1]:11 [ print_char_at::ch#2 print_char_at::ch#0 print_char_at::ch#1 ] 12: zp[2]:12 [ print_char_at::at#2 print_char_at::at#0 print_char_at::at#1 ] 
 Uplift Scope [print_byte_at] 9.33: zp[2]:9 [ print_byte_at::at#2 print_byte_at::at#0 print_byte_at::at#1 ] 5.6: zp[1]:6 [ print_byte_at::b#2 print_byte_at::b#0 print_byte_at::b#1 ] 4: zp[1]:58 [ print_byte_at::$0 ] 2: zp[1]:59 [ print_byte_at::$2 ] 
 Uplift Scope [print_word_at] 10: zp[2]:2 [ print_word_at::w#2 print_word_at::w#0 print_word_at::w#1 ] 0.8: zp[2]:4 [ print_word_at::at#2 ] 
@@ -4416,7 +4423,7 @@ Uplifting [init_dist_screen] best 241051 combination reg byte a [ init_dist_scre
 Limited combination testing to 100 combinations of 6144 possible.
 Uplifting [sqr] best 240714 combination reg byte a [ sqr::val#2 sqr::val#1 sqr::val#0 ] zp[2]:70 [ sqr::return#3 ] zp[2]:98 [ sqr::return#0 ] zp[2]:65 [ sqr::return#2 ] reg byte a [ sqr::$0 ] 
 Uplifting [sqrt] best 239811 combination reg byte a [ sqrt::return#2 ] zp[2]:76 [ sqrt::val#0 ] reg byte a [ sqrt::return#0 ] zp[2]:84 [ sqrt::found#0 ] zp[2]:86 [ sqrt::$3 ] zp[2]:88 [ sqrt::$1 ] 
-Uplifting [init_squares] best 239611 combination reg byte x [ init_squares::i#2 init_squares::i#1 ] reg byte a [ init_squares::$3 ] reg byte a [ init_squares::$4 ] zp[2]:29 [ init_squares::squares#2 init_squares::squares#1 ] zp[2]:27 [ init_squares::sqr#2 init_squares::sqr#1 ] 
+Uplifting [init_squares] best 239611 combination reg byte x [ init_squares::i#2 init_squares::i#1 ] reg byte a [ init_squares::$3 ] reg byte a [ init_squares::$4 ] zp[2]:28 [ init_squares::sqr#2 init_squares::sqr#1 ] zp[2]:30 [ init_squares::squares#2 init_squares::squares#1 ] 
 Uplifting [print_char_at] best 239604 combination reg byte x [ print_char_at::ch#2 print_char_at::ch#0 print_char_at::ch#1 ] zp[2]:12 [ print_char_at::at#2 print_char_at::at#0 print_char_at::at#1 ] 
 Uplifting [print_byte_at] best 239596 combination zp[2]:9 [ print_byte_at::at#2 print_byte_at::at#0 print_byte_at::at#1 ] zp[1]:6 [ print_byte_at::b#2 print_byte_at::b#0 print_byte_at::b#1 ] reg byte a [ print_byte_at::$0 ] reg byte y [ print_byte_at::$2 ] 
 Uplifting [print_word_at] best 239596 combination zp[2]:2 [ print_word_at::w#2 print_word_at::w#0 print_word_at::w#1 ] zp[2]:4 [ print_word_at::at#2 ] 
@@ -4468,9 +4475,9 @@ Coalescing zero page register [ zp[1]:14 [ init_dist_screen::y#10 init_dist_scre
 Coalescing zero page register [ zp[2]:15 [ init_dist_screen::screen_topline#11 init_dist_screen::screen_topline#1 ] ] with [ zp[2]:2 [ print_word_at::w#2 print_word_at::w#0 print_word_at::w#1 ] ]
 Coalescing zero page register [ zp[2]:17 [ init_dist_screen::screen_bottomline#11 init_dist_screen::screen_bottomline#1 ] ] with [ zp[2]:4 [ print_word_at::at#2 print_byte_at::at#2 print_byte_at::at#0 print_byte_at::at#1 ] ]
 Coalescing zero page register [ zp[2]:23 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 bsearch16u::return#3 sqrt::found#0 sqrt::$3 sqrt::$1 ] ] with [ zp[2]:12 [ print_char_at::at#2 print_char_at::at#0 print_char_at::at#1 ] ]
-Coalescing zero page register [ zp[2]:32 [ init_font_hex::proto_hi#6 init_font_hex::proto_hi#1 ] ] with [ zp[2]:27 [ init_squares::sqr#2 init_squares::sqr#1 ] ]
+Coalescing zero page register [ zp[2]:32 [ init_font_hex::proto_hi#6 init_font_hex::proto_hi#1 ] ] with [ zp[2]:28 [ init_squares::sqr#2 init_squares::sqr#1 ] ]
 Coalescing zero page register [ zp[1]:34 [ init_font_hex::c#6 init_font_hex::c#1 ] ] with [ zp[1]:20 [ init_dist_screen::x#2 init_dist_screen::x#1 ] ]
-Coalescing zero page register [ zp[2]:35 [ init_font_hex::charset#2 init_font_hex::charset#5 init_font_hex::charset#0 ] ] with [ zp[2]:29 [ init_squares::squares#2 init_squares::squares#1 ] ]
+Coalescing zero page register [ zp[2]:35 [ init_font_hex::charset#2 init_font_hex::charset#5 init_font_hex::charset#0 ] ] with [ zp[2]:30 [ init_squares::squares#2 init_squares::squares#1 ] ]
 Coalescing zero page register [ zp[1]:39 [ init_font_hex::c1#4 init_font_hex::c1#1 ] ] with [ zp[1]:21 [ init_dist_screen::xb#2 init_dist_screen::xb#1 ] ]
 Coalescing zero page register [ zp[2]:65 [ sqr::return#2 init_dist_screen::yds#0 ] ] with [ zp[2]:37 [ init_font_hex::proto_lo#4 init_font_hex::proto_lo#1 ] ]
 Coalescing zero page register [ zp[2]:32 [ init_font_hex::proto_hi#6 init_font_hex::proto_hi#1 init_squares::sqr#2 init_squares::sqr#1 ] ] with [ zp[2]:15 [ init_dist_screen::screen_topline#11 init_dist_screen::screen_topline#1 print_word_at::w#2 print_word_at::w#0 print_word_at::w#1 ] ]
@@ -5221,35 +5228,39 @@ init_squares: {
     jsr malloc
     // [121] phi from init_squares to init_squares::@1 [phi:init_squares->init_squares::@1]
   __b1_from_init_squares:
-    // [121] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares->init_squares::@1#0] -- vbuxx=vbuc1 
-    ldx #0
-    // [121] phi (word*) init_squares::squares#2 = (const word*) SQUARES#1 [phi:init_squares->init_squares::@1#1] -- pwuz1=pwuc1 
+    // [121] phi (word*) init_squares::squares#2 = (const word*) SQUARES#1 [phi:init_squares->init_squares::@1#0] -- pwuz1=pwuc1 
     lda #<SQUARES
     sta.z squares
     lda #>SQUARES
     sta.z squares+1
-    // [121] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares->init_squares::@1#2] -- vwuz1=vwuc1 
+    // [121] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares->init_squares::@1#1] -- vwuz1=vwuc1 
     lda #<0
     sta.z sqr
     lda #>0
     sta.z sqr+1
-    jmp __b1
-    // [121] phi from init_squares::@1 to init_squares::@1 [phi:init_squares::@1->init_squares::@1]
-  __b1_from___b1:
-    // [121] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@1->init_squares::@1#0] -- register_copy 
-    // [121] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@1->init_squares::@1#1] -- register_copy 
-    // [121] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@1->init_squares::@1#2] -- register_copy 
+    // [121] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares->init_squares::@1#2] -- vbuxx=vbuc1 
+    ldx #0
     jmp __b1
     // init_squares::@1
   __b1:
-    // [122] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
+    // [122] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2 -- vbuxx_lt_vbuc1_then_la1 
+    cpx #NUM_SQUARES
+    bcc __b2
+    jmp __breturn
+    // init_squares::@return
+  __breturn:
+    // [123] return 
+    rts
+    // init_squares::@2
+  __b2:
+    // [124] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
     ldy #0
     lda.z sqr
     sta (squares),y
     iny
     lda.z sqr+1
     sta (squares),y
-    // [123] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
+    // [125] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
     lda #SIZEOF_WORD
     clc
     adc.z squares
@@ -5257,29 +5268,27 @@ init_squares: {
     bcc !+
     inc.z squares+1
   !:
-    // [124] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1 
+    // [126] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1 
     txa
     asl
-    // [125] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuaa=vbuaa_plus_1 
+    // [127] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuaa=vbuaa_plus_1 
     clc
     adc #1
-    // [126] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuaa 
+    // [128] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuaa 
     clc
     adc.z sqr
     sta.z sqr
     bcc !+
     inc.z sqr+1
   !:
-    // [127] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuxx=_inc_vbuxx 
+    // [129] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuxx=_inc_vbuxx 
     inx
-    // [128] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1 -- vbuxx_neq_vbuc1_then_la1 
-    cpx #NUM_SQUARES-1+1
-    bne __b1_from___b1
-    jmp __breturn
-    // init_squares::@return
-  __breturn:
-    // [129] return 
-    rts
+    // [121] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
+  __b1_from___b2:
+    // [121] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@2->init_squares::@1#0] -- register_copy 
+    // [121] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
+    // [121] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@2->init_squares::@1#2] -- register_copy 
+    jmp __b1
 }
   // malloc
 // Allocates a block of size bytes of memory, returning a pointer to the beginning of the block.
@@ -5544,8 +5553,8 @@ Succesful ASM optimization Pass5NextJumpElimination
 Removing instruction ldy.z x
 Removing instruction ldy.z xb
 Removing instruction lda.z result+1
-Replacing instruction lda #<0 with TXA
 Removing instruction lda #>0
+Replacing instruction ldx #0 with TAX
 Replacing instruction ldy #0 with TAY
 Removing instruction ldy.z idx
 Removing instruction lda #0
@@ -5559,7 +5568,6 @@ Replacing label __b2_from___b5 with __b2
 Replacing label __breturn_from___b8 with __b2
 Replacing label __b7_from___b6 with __b7
 Replacing label __b7_from___b6 with __b7
-Replacing label __b1_from___b1 with __b1
 Replacing label __b3_from___b3 with __b3
 Replacing label __b2_from___b4 with __b2
 Replacing label __b1_from___b5 with __b1
@@ -5589,7 +5597,6 @@ Removing instruction __breturn_from___b8:
 Removing instruction __breturn:
 Removing instruction __b7_from___b6:
 Removing instruction __b7_from___b9:
-Removing instruction __b1_from___b1:
 Removing instruction __b1_from___b5:
 Removing instruction __b2_from___b1:
 Removing instruction __b2_from___b4:
@@ -5640,6 +5647,7 @@ Removing instruction __breturn:
 Removing instruction malloc_from_init_squares:
 Removing instruction __b1_from_init_squares:
 Removing instruction __breturn:
+Removing instruction __b1_from___b2:
 Removing instruction __breturn:
 Removing instruction __breturn:
 Removing instruction __b1_from_init_font_hex:
@@ -5655,7 +5663,6 @@ Replacing jump to rts with rts in jmp __b2
 Succesful ASM optimization Pass5DoubleJumpElimination
 Removing instruction jmp __b1
 Removing instruction jmp __b1
-Removing instruction jmp __b1
 Removing instruction jmp __b2
 Removing instruction jmp __b3
 Succesful ASM optimization Pass5NextJumpElimination
@@ -5816,16 +5823,17 @@ FINAL SYMBOL TABLE
 (byte~) init_squares::$3 reg byte a 22.0
 (byte~) init_squares::$4 reg byte a 22.0
 (label) init_squares::@1
+(label) init_squares::@2
 (label) init_squares::@return
 (byte) init_squares::i
-(byte) init_squares::i#1 reg byte x 16.5
-(byte) init_squares::i#2 reg byte x 5.5
+(byte) init_squares::i#1 reg byte x 22.0
+(byte) init_squares::i#2 reg byte x 6.285714285714286
 (word) init_squares::sqr
-(word) init_squares::sqr#1 sqr zp[2]:4 7.333333333333333
-(word) init_squares::sqr#2 sqr zp[2]:4 6.6000000000000005
+(word) init_squares::sqr#1 sqr zp[2]:4 11.0
+(word) init_squares::sqr#2 sqr zp[2]:4 5.5
 (word*) init_squares::squares
-(word*) init_squares::squares#1 squares zp[2]:9 3.6666666666666665
-(word*) init_squares::squares#2 squares zp[2]:9 16.5
+(word*) init_squares::squares#1 squares zp[2]:9 4.4
+(word*) init_squares::squares#2 squares zp[2]:9 11.0
 (void()) main()
 (dword~) main::$4 zp[4]:13 4.0
 (label) main::@1
@@ -5957,7 +5965,7 @@ reg byte y [ init_font_hex::idx#3 ]
 
 
 FINAL ASSEMBLER
-Score: 203637
+Score: 203667
 
   // File Comments
 // Calculate the distance to the center of the screen - and show it using font-hex
@@ -6644,25 +6652,31 @@ init_squares: {
     // [130] phi from init_squares to malloc [phi:init_squares->malloc]
     jsr malloc
     // [121] phi from init_squares to init_squares::@1 [phi:init_squares->init_squares::@1]
-    // [121] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares->init_squares::@1#0] -- vbuxx=vbuc1 
-    ldx #0
-    // [121] phi (word*) init_squares::squares#2 = (const word*) SQUARES#1 [phi:init_squares->init_squares::@1#1] -- pwuz1=pwuc1 
+    // [121] phi (word*) init_squares::squares#2 = (const word*) SQUARES#1 [phi:init_squares->init_squares::@1#0] -- pwuz1=pwuc1 
     lda #<SQUARES
     sta.z squares
     lda #>SQUARES
     sta.z squares+1
-    // [121] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares->init_squares::@1#2] -- vwuz1=vwuc1 
-    txa
+    // [121] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares->init_squares::@1#1] -- vwuz1=vwuc1 
+    lda #<0
     sta.z sqr
     sta.z sqr+1
-    // [121] phi from init_squares::@1 to init_squares::@1 [phi:init_squares::@1->init_squares::@1]
-    // [121] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@1->init_squares::@1#0] -- register_copy 
-    // [121] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@1->init_squares::@1#1] -- register_copy 
-    // [121] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@1->init_squares::@1#2] -- register_copy 
+    // [121] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares->init_squares::@1#2] -- vbuxx=vbuc1 
+    tax
     // init_squares::@1
   __b1:
+    // for(byte i=0;i<NUM_SQUARES;i++)
+    // [122] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2 -- vbuxx_lt_vbuc1_then_la1 
+    cpx #NUM_SQUARES
+    bcc __b2
+    // init_squares::@return
+    // }
+    // [123] return 
+    rts
+    // init_squares::@2
+  __b2:
     // *squares++ = sqr
-    // [122] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
+    // [124] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
     ldy #0
     lda.z sqr
     sta (squares),y
@@ -6670,7 +6684,7 @@ init_squares: {
     lda.z sqr+1
     sta (squares),y
     // *squares++ = sqr;
-    // [123] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
+    // [125] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
     lda #SIZEOF_WORD
     clc
     adc.z squares
@@ -6679,31 +6693,29 @@ init_squares: {
     inc.z squares+1
   !:
     // i*2
-    // [124] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1 
+    // [126] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1 
     txa
     asl
     // i*2+1
-    // [125] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuaa=vbuaa_plus_1 
+    // [127] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuaa=vbuaa_plus_1 
     clc
     adc #1
     // sqr += i*2+1
-    // [126] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuaa 
+    // [128] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuaa 
     clc
     adc.z sqr
     sta.z sqr
     bcc !+
     inc.z sqr+1
   !:
-    // for( byte i: 0..NUM_SQUARES-1)
-    // [127] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuxx=_inc_vbuxx 
+    // for(byte i=0;i<NUM_SQUARES;i++)
+    // [129] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuxx=_inc_vbuxx 
     inx
-    // [128] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1 -- vbuxx_neq_vbuc1_then_la1 
-    cpx #NUM_SQUARES-1+1
-    bne __b1
-    // init_squares::@return
-    // }
-    // [129] return 
-    rts
+    // [121] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
+    // [121] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@2->init_squares::@1#0] -- register_copy 
+    // [121] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
+    // [121] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@2->init_squares::@1#2] -- register_copy 
+    jmp __b1
 }
   // malloc
 // Allocates a block of size bytes of memory, returning a pointer to the beginning of the block.
@@ -6713,6 +6725,7 @@ malloc: {
     .label mem = HEAP_TOP-size
     .label return = mem
     // malloc::@return
+    // }
     // [131] return 
     rts
 }
diff --git a/src/test/ref/screen-center-distance.sym b/src/test/ref/screen-center-distance.sym
index 19087a495..a6e18af15 100644
--- a/src/test/ref/screen-center-distance.sym
+++ b/src/test/ref/screen-center-distance.sym
@@ -151,16 +151,17 @@
 (byte~) init_squares::$3 reg byte a 22.0
 (byte~) init_squares::$4 reg byte a 22.0
 (label) init_squares::@1
+(label) init_squares::@2
 (label) init_squares::@return
 (byte) init_squares::i
-(byte) init_squares::i#1 reg byte x 16.5
-(byte) init_squares::i#2 reg byte x 5.5
+(byte) init_squares::i#1 reg byte x 22.0
+(byte) init_squares::i#2 reg byte x 6.285714285714286
 (word) init_squares::sqr
-(word) init_squares::sqr#1 sqr zp[2]:4 7.333333333333333
-(word) init_squares::sqr#2 sqr zp[2]:4 6.6000000000000005
+(word) init_squares::sqr#1 sqr zp[2]:4 11.0
+(word) init_squares::sqr#2 sqr zp[2]:4 5.5
 (word*) init_squares::squares
-(word*) init_squares::squares#1 squares zp[2]:9 3.6666666666666665
-(word*) init_squares::squares#2 squares zp[2]:9 16.5
+(word*) init_squares::squares#1 squares zp[2]:9 4.4
+(word*) init_squares::squares#2 squares zp[2]:9 11.0
 (void()) main()
 (dword~) main::$4 zp[4]:13 4.0
 (label) main::@1
diff --git a/src/test/ref/screen-show-spiral-buckets.asm b/src/test/ref/screen-show-spiral-buckets.asm
index 80f396b11..31be7c8b7 100644
--- a/src/test/ref/screen-show-spiral-buckets.asm
+++ b/src/test/ref/screen-show-spiral-buckets.asm
@@ -954,11 +954,15 @@ init_squares: {
     sta.z squares
     lda.z SQUARES+1
     sta.z squares+1
-    ldx #0
-    txa
+    lda #<0
     sta.z sqr
     sta.z sqr+1
+    tax
   __b1:
+    cpx #NUM_SQUARES
+    bcc __b2
+    rts
+  __b2:
     ldy #0
     lda.z sqr
     sta (squares),y
@@ -983,9 +987,7 @@ init_squares: {
     inc.z sqr+1
   !:
     inx
-    cpx #NUM_SQUARES-1+1
-    bne __b1
-    rts
+    jmp __b1
 }
 // Angles representing ATAN(0.5), ATAN(0.25), ATAN(0.125), ...
 CORDIC_ATAN2_ANGLES_16:
diff --git a/src/test/ref/screen-show-spiral-buckets.cfg b/src/test/ref/screen-show-spiral-buckets.cfg
index 4311ba101..f93c7355d 100644
--- a/src/test/ref/screen-show-spiral-buckets.cfg
+++ b/src/test/ref/screen-show-spiral-buckets.cfg
@@ -488,23 +488,25 @@ sqr::@return: scope:[sqr]  from sqr
 init_squares: scope:[init_squares]  from init_dist_screen
   [242] phi()
   [243] call malloc 
-  to:init_squares::@2
-init_squares::@2: scope:[init_squares]  from init_squares
+  to:init_squares::@3
+init_squares::@3: scope:[init_squares]  from init_squares
   [244] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0
   [245] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1
   to:init_squares::@1
-init_squares::@1: scope:[init_squares]  from init_squares::@1 init_squares::@2
-  [246] (byte) init_squares::i#2 ← phi( init_squares::@1/(byte) init_squares::i#1 init_squares::@2/(byte) 0 )
-  [246] (word*) init_squares::squares#2 ← phi( init_squares::@1/(word*) init_squares::squares#1 init_squares::@2/(word*) init_squares::squares#0 )
-  [246] (word) init_squares::sqr#2 ← phi( init_squares::@1/(word) init_squares::sqr#1 init_squares::@2/(word) 0 )
-  [247] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
-  [248] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
-  [249] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1
-  [250] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
-  [251] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4
-  [252] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2
-  [253] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1
+init_squares::@1: scope:[init_squares]  from init_squares::@2 init_squares::@3
+  [246] (word*) init_squares::squares#2 ← phi( init_squares::@2/(word*) init_squares::squares#1 init_squares::@3/(word*) init_squares::squares#0 )
+  [246] (word) init_squares::sqr#2 ← phi( init_squares::@2/(word) init_squares::sqr#1 init_squares::@3/(word) 0 )
+  [246] (byte) init_squares::i#2 ← phi( init_squares::@2/(byte) init_squares::i#1 init_squares::@3/(byte) 0 )
+  [247] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2
   to:init_squares::@return
 init_squares::@return: scope:[init_squares]  from init_squares::@1
-  [254] return 
+  [248] return 
   to:@return
+init_squares::@2: scope:[init_squares]  from init_squares::@1
+  [249] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
+  [250] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
+  [251] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1
+  [252] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
+  [253] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4
+  [254] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2
+  to:init_squares::@1
diff --git a/src/test/ref/screen-show-spiral-buckets.log b/src/test/ref/screen-show-spiral-buckets.log
index e6ac1cfcc..c07f280ea 100644
--- a/src/test/ref/screen-show-spiral-buckets.log
+++ b/src/test/ref/screen-show-spiral-buckets.log
@@ -41,7 +41,10 @@ Culled Empty Block (label) @13
 Culled Empty Block (label) @14
 Culled Empty Block (label) @15
 Culled Empty Block (label) @16
-Culled Empty Block (label) init_squares::@2
+Culled Empty Block (label) init_squares::@4
+Culled Empty Block (label) init_squares::@3
+Culled Empty Block (label) init_squares::@5
+Culled Empty Block (label) init_squares::@6
 Culled Empty Block (label) @18
 Culled Empty Block (label) sqr::@1
 Culled Empty Block (label) @19
@@ -202,7 +205,7 @@ bsearch16u::@3: scope:[bsearch16u]  from bsearch16u::@1 bsearch16u::@2
   (word*) bsearch16u::return#2 ← (word*~) bsearch16u::$4
   to:bsearch16u::@return
 @17: scope:[]  from @9
-  (byte*) heap_head#46 ← phi( @9/(byte*) heap_head#0 )
+  (byte*) heap_head#47 ← phi( @9/(byte*) heap_head#0 )
   (byte) NUM_SQUARES#0 ← (byte) $ff
   (word*) SQUARES#0 ← (word*) 0
   to:@22
@@ -215,9 +218,9 @@ init_squares: scope:[init_squares]  from init_dist_screen
   (word) malloc::size#0 ← (byte~) init_squares::$0
   call malloc 
   (void*) malloc::return#2 ← (void*) malloc::return#1
-  to:init_squares::@3
-init_squares::@3: scope:[init_squares]  from init_squares
-  (byte) NUM_SQUARES#7 ← phi( init_squares/(byte) NUM_SQUARES#6 )
+  to:init_squares::@7
+init_squares::@7: scope:[init_squares]  from init_squares
+  (byte) NUM_SQUARES#14 ← phi( init_squares/(byte) NUM_SQUARES#6 )
   (byte*) heap_head#20 ← phi( init_squares/(byte*) heap_head#2 )
   (void*) malloc::return#10 ← phi( init_squares/(void*) malloc::return#2 )
   (void*~) init_squares::$1 ← (void*) malloc::return#10
@@ -225,24 +228,32 @@ init_squares::@3: scope:[init_squares]  from init_squares
   (word*) SQUARES#1 ← ((word*)) (void*~) init_squares::$1
   (word*) init_squares::squares#0 ← (word*) SQUARES#1
   (word) init_squares::sqr#0 ← (word) 0
-  (number~) init_squares::$2 ← (byte) NUM_SQUARES#7 - (number) 1
   (byte) init_squares::i#0 ← (byte) 0
   to:init_squares::@1
-init_squares::@1: scope:[init_squares]  from init_squares::@1 init_squares::@3
-  (word*) SQUARES#17 ← phi( init_squares::@1/(word*) SQUARES#17 init_squares::@3/(word*) SQUARES#1 )
-  (byte*) heap_head#38 ← phi( init_squares::@1/(byte*) heap_head#38 init_squares::@3/(byte*) heap_head#3 )
-  (byte) init_squares::i#2 ← phi( init_squares::@1/(byte) init_squares::i#1 init_squares::@3/(byte) init_squares::i#0 )
-  (word*) init_squares::squares#2 ← phi( init_squares::@1/(word*) init_squares::squares#1 init_squares::@3/(word*) init_squares::squares#0 )
-  (word) init_squares::sqr#2 ← phi( init_squares::@1/(word) init_squares::sqr#1 init_squares::@3/(word) init_squares::sqr#0 )
+init_squares::@1: scope:[init_squares]  from init_squares::@2 init_squares::@7
+  (word*) SQUARES#17 ← phi( init_squares::@2/(word*) SQUARES#26 init_squares::@7/(word*) SQUARES#1 )
+  (byte*) heap_head#38 ← phi( init_squares::@2/(byte*) heap_head#46 init_squares::@7/(byte*) heap_head#3 )
+  (word*) init_squares::squares#3 ← phi( init_squares::@2/(word*) init_squares::squares#1 init_squares::@7/(word*) init_squares::squares#0 )
+  (word) init_squares::sqr#3 ← phi( init_squares::@2/(word) init_squares::sqr#1 init_squares::@7/(word) init_squares::sqr#0 )
+  (byte) NUM_SQUARES#7 ← phi( init_squares::@2/(byte) NUM_SQUARES#13 init_squares::@7/(byte) NUM_SQUARES#14 )
+  (byte) init_squares::i#2 ← phi( init_squares::@2/(byte) init_squares::i#1 init_squares::@7/(byte) init_squares::i#0 )
+  (bool~) init_squares::$2 ← (byte) init_squares::i#2 < (byte) NUM_SQUARES#7
+  if((bool~) init_squares::$2) goto init_squares::@2
+  to:init_squares::@return
+init_squares::@2: scope:[init_squares]  from init_squares::@1
+  (word*) SQUARES#26 ← phi( init_squares::@1/(word*) SQUARES#17 )
+  (byte*) heap_head#46 ← phi( init_squares::@1/(byte*) heap_head#38 )
+  (byte) NUM_SQUARES#13 ← phi( init_squares::@1/(byte) NUM_SQUARES#7 )
+  (byte) init_squares::i#3 ← phi( init_squares::@1/(byte) init_squares::i#2 )
+  (word*) init_squares::squares#2 ← phi( init_squares::@1/(word*) init_squares::squares#3 )
+  (word) init_squares::sqr#2 ← phi( init_squares::@1/(word) init_squares::sqr#3 )
   *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
   (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
-  (number~) init_squares::$3 ← (byte) init_squares::i#2 * (number) 2
+  (number~) init_squares::$3 ← (byte) init_squares::i#3 * (number) 2
   (number~) init_squares::$4 ← (number~) init_squares::$3 + (number) 1
   (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (number~) init_squares::$4
-  (byte) init_squares::i#1 ← (byte) init_squares::i#2 + rangenext(0,init_squares::$2)
-  (bool~) init_squares::$5 ← (byte) init_squares::i#1 != rangelast(0,init_squares::$2)
-  if((bool~) init_squares::$5) goto init_squares::@1
-  to:init_squares::@return
+  (byte) init_squares::i#1 ← ++ (byte) init_squares::i#3
+  to:init_squares::@1
 init_squares::@return: scope:[init_squares]  from init_squares::@1
   (word*) SQUARES#8 ← phi( init_squares::@1/(word*) SQUARES#17 )
   (byte*) heap_head#21 ← phi( init_squares::@1/(byte*) heap_head#38 )
@@ -266,7 +277,7 @@ sqr::@return: scope:[sqr]  from sqr
 
 (byte()) sqrt((word) sqrt::val)
 sqrt: scope:[sqrt]  from init_dist_screen::@21
-  (byte) NUM_SQUARES#8 ← phi( init_dist_screen::@21/(byte) NUM_SQUARES#13 )
+  (byte) NUM_SQUARES#8 ← phi( init_dist_screen::@21/(byte) NUM_SQUARES#15 )
   (word*) SQUARES#10 ← phi( init_dist_screen::@21/(word*) SQUARES#20 )
   (word) sqrt::val#1 ← phi( init_dist_screen::@21/(word) sqrt::val#0 )
   (word) bsearch16u::key#0 ← (word) sqrt::val#1
@@ -503,16 +514,16 @@ atan2_16::@return: scope:[atan2_16]  from atan2_16::@8
   return 
   to:@return
 @22: scope:[]  from @17
-  (word*) SQUARES#54 ← phi( @17/(word*) SQUARES#0 )
-  (byte) NUM_SQUARES#48 ← phi( @17/(byte) NUM_SQUARES#0 )
-  (byte*) heap_head#35 ← phi( @17/(byte*) heap_head#46 )
+  (word*) SQUARES#55 ← phi( @17/(word*) SQUARES#0 )
+  (byte) NUM_SQUARES#50 ← phi( @17/(byte) NUM_SQUARES#0 )
+  (byte*) heap_head#35 ← phi( @17/(byte*) heap_head#47 )
   (word) malloc::size#1 ← (number) $3e8
   call malloc 
   (void*) malloc::return#3 ← (void*) malloc::return#1
   to:@27
 @27: scope:[]  from @22
-  (word*) SQUARES#51 ← phi( @22/(word*) SQUARES#54 )
-  (byte) NUM_SQUARES#44 ← phi( @22/(byte) NUM_SQUARES#48 )
+  (word*) SQUARES#52 ← phi( @22/(word*) SQUARES#55 )
+  (byte) NUM_SQUARES#46 ← phi( @22/(byte) NUM_SQUARES#50 )
   (byte*) heap_head#22 ← phi( @22/(byte*) heap_head#2 )
   (void*) malloc::return#11 ← phi( @22/(void*) malloc::return#3 )
   (void*~) $0 ← (void*) malloc::return#11
@@ -523,8 +534,8 @@ atan2_16::@return: scope:[atan2_16]  from atan2_16::@8
   (void*) malloc::return#4 ← (void*) malloc::return#1
   to:@28
 @28: scope:[]  from @27
-  (word*) SQUARES#48 ← phi( @27/(word*) SQUARES#51 )
-  (byte) NUM_SQUARES#39 ← phi( @27/(byte) NUM_SQUARES#44 )
+  (word*) SQUARES#49 ← phi( @27/(word*) SQUARES#52 )
+  (byte) NUM_SQUARES#41 ← phi( @27/(byte) NUM_SQUARES#46 )
   (byte*) SCREEN_DIST#8 ← phi( @27/(byte*) SCREEN_DIST#0 )
   (byte*) heap_head#23 ← phi( @27/(byte*) heap_head#2 )
   (void*) malloc::return#12 ← phi( @27/(void*) malloc::return#4 )
@@ -537,8 +548,8 @@ atan2_16::@return: scope:[atan2_16]  from atan2_16::@8
   to:@29
 @29: scope:[]  from @28
   (byte*) SCREEN_ANGLE#13 ← phi( @28/(byte*) SCREEN_ANGLE#0 )
-  (word*) SQUARES#44 ← phi( @28/(word*) SQUARES#48 )
-  (byte) NUM_SQUARES#33 ← phi( @28/(byte) NUM_SQUARES#39 )
+  (word*) SQUARES#45 ← phi( @28/(word*) SQUARES#49 )
+  (byte) NUM_SQUARES#35 ← phi( @28/(byte) NUM_SQUARES#41 )
   (byte*) SCREEN_DIST#7 ← phi( @28/(byte*) SCREEN_DIST#8 )
   (byte*) heap_head#24 ← phi( @28/(byte*) heap_head#2 )
   (void*) malloc::return#13 ← phi( @28/(void*) malloc::return#5 )
@@ -552,8 +563,8 @@ atan2_16::@return: scope:[atan2_16]  from atan2_16::@8
 @30: scope:[]  from @29
   (byte*) BUCKET_SIZES#24 ← phi( @29/(byte*) BUCKET_SIZES#0 )
   (byte*) SCREEN_ANGLE#10 ← phi( @29/(byte*) SCREEN_ANGLE#13 )
-  (word*) SQUARES#35 ← phi( @29/(word*) SQUARES#44 )
-  (byte) NUM_SQUARES#24 ← phi( @29/(byte) NUM_SQUARES#33 )
+  (word*) SQUARES#36 ← phi( @29/(word*) SQUARES#45 )
+  (byte) NUM_SQUARES#26 ← phi( @29/(byte) NUM_SQUARES#35 )
   (byte*) SCREEN_DIST#6 ← phi( @29/(byte*) SCREEN_DIST#7 )
   (byte*) heap_head#25 ← phi( @29/(byte*) heap_head#2 )
   (void*) malloc::return#14 ← phi( @29/(void*) malloc::return#6 )
@@ -568,8 +579,8 @@ atan2_16::@return: scope:[atan2_16]  from atan2_16::@8
   (word**) BUCKETS#30 ← phi( @30/(word**) BUCKETS#0 )
   (byte*) BUCKET_SIZES#23 ← phi( @30/(byte*) BUCKET_SIZES#24 )
   (byte*) SCREEN_ANGLE#9 ← phi( @30/(byte*) SCREEN_ANGLE#10 )
-  (word*) SQUARES#34 ← phi( @30/(word*) SQUARES#35 )
-  (byte) NUM_SQUARES#23 ← phi( @30/(byte) NUM_SQUARES#24 )
+  (word*) SQUARES#35 ← phi( @30/(word*) SQUARES#36 )
+  (byte) NUM_SQUARES#25 ← phi( @30/(byte) NUM_SQUARES#26 )
   (byte*) SCREEN_DIST#5 ← phi( @30/(byte*) SCREEN_DIST#6 )
   (byte*) heap_head#26 ← phi( @30/(byte*) heap_head#2 )
   (void*) malloc::return#15 ← phi( @30/(void*) malloc::return#7 )
@@ -586,7 +597,7 @@ main: scope:[main]  from @26
   (byte*) SCREEN_ANGLE#3 ← phi( @26/(byte*) SCREEN_ANGLE#5 )
   (word*) SQUARES#21 ← phi( @26/(word*) SQUARES#25 )
   (byte*) heap_head#39 ← phi( @26/(byte*) heap_head#45 )
-  (byte) NUM_SQUARES#14 ← phi( @26/(byte) NUM_SQUARES#17 )
+  (byte) NUM_SQUARES#16 ← phi( @26/(byte) NUM_SQUARES#19 )
   (byte*) SCREEN_DIST#1 ← phi( @26/(byte*) SCREEN_DIST#3 )
   asm { sei  }
   (byte*) init_dist_screen::screen#0 ← (byte*) SCREEN_DIST#1
@@ -610,8 +621,8 @@ main::@34: scope:[main]  from main
 main::@35: scope:[main]  from main::@34
   (byte*) BUCKET_IDX#12 ← phi( main::@34/(byte*) BUCKET_IDX#13 )
   (byte*) SCREEN_ANGLE#19 ← phi( main::@34/(byte*) SCREEN_ANGLE#1 )
-  (word*) SQUARES#45 ← phi( main::@34/(word*) SQUARES#3 )
-  (byte) NUM_SQUARES#34 ← phi( main::@34/(byte) NUM_SQUARES#1 )
+  (word*) SQUARES#46 ← phi( main::@34/(word*) SQUARES#3 )
+  (byte) NUM_SQUARES#36 ← phi( main::@34/(byte) NUM_SQUARES#1 )
   (word**) BUCKETS#15 ← phi( main::@34/(word**) BUCKETS#19 )
   (byte*) BUCKET_SIZES#11 ← phi( main::@34/(byte*) BUCKET_SIZES#12 )
   (byte*) heap_head#40 ← phi( main::@34/(byte*) heap_head#10 )
@@ -621,8 +632,8 @@ main::@35: scope:[main]  from main::@34
   to:main::@36
 main::@36: scope:[main]  from main::@35
   (byte*) SCREEN_ANGLE#18 ← phi( main::@35/(byte*) SCREEN_ANGLE#19 )
-  (word*) SQUARES#38 ← phi( main::@35/(word*) SQUARES#45 )
-  (byte) NUM_SQUARES#27 ← phi( main::@35/(byte) NUM_SQUARES#34 )
+  (word*) SQUARES#39 ← phi( main::@35/(word*) SQUARES#46 )
+  (byte) NUM_SQUARES#29 ← phi( main::@35/(byte) NUM_SQUARES#36 )
   (byte*) BUCKET_SIZES#15 ← phi( main::@35/(byte*) BUCKET_SIZES#11 )
   (word**) BUCKETS#12 ← phi( main::@35/(word**) BUCKETS#15 )
   (byte*) heap_head#28 ← phi( main::@35/(byte*) heap_head#14 )
@@ -631,9 +642,9 @@ main::@36: scope:[main]  from main::@35
   to:main::@1
 main::@1: scope:[main]  from main::@18 main::@21 main::@36
   (byte*) SCREEN_ANGLE#15 ← phi( main::@18/(byte*) SCREEN_ANGLE#16 main::@21/(byte*) SCREEN_ANGLE#17 main::@36/(byte*) SCREEN_ANGLE#18 )
-  (word*) SQUARES#26 ← phi( main::@18/(word*) SQUARES#36 main::@21/(word*) SQUARES#37 main::@36/(word*) SQUARES#38 )
-  (byte*) heap_head#47 ← phi( main::@18/(byte*) heap_head#53 main::@21/(byte*) heap_head#54 main::@36/(byte*) heap_head#11 )
-  (byte) NUM_SQUARES#18 ← phi( main::@18/(byte) NUM_SQUARES#25 main::@21/(byte) NUM_SQUARES#26 main::@36/(byte) NUM_SQUARES#27 )
+  (word*) SQUARES#27 ← phi( main::@18/(word*) SQUARES#37 main::@21/(word*) SQUARES#38 main::@36/(word*) SQUARES#39 )
+  (byte*) heap_head#48 ← phi( main::@18/(byte*) heap_head#54 main::@21/(byte*) heap_head#55 main::@36/(byte*) heap_head#11 )
+  (byte) NUM_SQUARES#20 ← phi( main::@18/(byte) NUM_SQUARES#27 main::@21/(byte) NUM_SQUARES#28 main::@36/(byte) NUM_SQUARES#29 )
   (byte*) BUCKET_SIZES#10 ← phi( main::@18/(byte*) BUCKET_SIZES#13 main::@21/(byte*) BUCKET_SIZES#14 main::@36/(byte*) BUCKET_SIZES#15 )
   (word**) BUCKETS#7 ← phi( main::@18/(word**) BUCKETS#10 main::@21/(word**) BUCKETS#11 main::@36/(word**) BUCKETS#12 )
   (byte) main::bucket_idx#6 ← phi( main::@18/(byte) main::bucket_idx#8 main::@21/(byte) main::bucket_idx#9 main::@36/(byte) main::bucket_idx#0 )
@@ -641,9 +652,9 @@ main::@1: scope:[main]  from main::@18 main::@21 main::@36
   to:main::@28
 main::@4: scope:[main]  from main::@1 main::@4
   (byte*) SCREEN_ANGLE#14 ← phi( main::@1/(byte*) SCREEN_ANGLE#15 main::@4/(byte*) SCREEN_ANGLE#14 )
-  (word*) SQUARES#49 ← phi( main::@1/(word*) SQUARES#26 main::@4/(word*) SQUARES#49 )
-  (byte*) heap_head#66 ← phi( main::@1/(byte*) heap_head#47 main::@4/(byte*) heap_head#66 )
-  (byte) NUM_SQUARES#40 ← phi( main::@1/(byte) NUM_SQUARES#18 main::@4/(byte) NUM_SQUARES#40 )
+  (word*) SQUARES#50 ← phi( main::@1/(word*) SQUARES#27 main::@4/(word*) SQUARES#50 )
+  (byte*) heap_head#67 ← phi( main::@1/(byte*) heap_head#48 main::@4/(byte*) heap_head#67 )
+  (byte) NUM_SQUARES#42 ← phi( main::@1/(byte) NUM_SQUARES#20 main::@4/(byte) NUM_SQUARES#42 )
   (byte*) BUCKET_SIZES#5 ← phi( main::@1/(byte*) BUCKET_SIZES#10 main::@4/(byte*) BUCKET_SIZES#5 )
   (word**) BUCKETS#4 ← phi( main::@1/(word**) BUCKETS#7 main::@4/(word**) BUCKETS#4 )
   (byte) main::bucket_idx#4 ← phi( main::@1/(byte) main::bucket_idx#6 main::@4/(byte) main::bucket_idx#4 )
@@ -652,9 +663,9 @@ main::@4: scope:[main]  from main::@1 main::@4
   to:main::@5
 main::@5: scope:[main]  from main::@4
   (byte*) SCREEN_ANGLE#11 ← phi( main::@4/(byte*) SCREEN_ANGLE#14 )
-  (word*) SQUARES#47 ← phi( main::@4/(word*) SQUARES#49 )
-  (byte*) heap_head#61 ← phi( main::@4/(byte*) heap_head#66 )
-  (byte) NUM_SQUARES#36 ← phi( main::@4/(byte) NUM_SQUARES#40 )
+  (word*) SQUARES#48 ← phi( main::@4/(word*) SQUARES#50 )
+  (byte*) heap_head#62 ← phi( main::@4/(byte*) heap_head#67 )
+  (byte) NUM_SQUARES#38 ← phi( main::@4/(byte) NUM_SQUARES#42 )
   (byte*) BUCKET_SIZES#1 ← phi( main::@4/(byte*) BUCKET_SIZES#5 )
   (word**) BUCKETS#1 ← phi( main::@4/(word**) BUCKETS#4 )
   (byte) main::bucket_idx#2 ← phi( main::@4/(byte) main::bucket_idx#4 )
@@ -670,9 +681,9 @@ main::@7: scope:[main]  from main::@10 main::@5
   (byte*) SCREEN_ANGLE#21 ← phi( main::@10/(byte*) SCREEN_ANGLE#20 main::@5/(byte*) SCREEN_ANGLE#11 )
   (byte*) BUCKET_SIZES#18 ← phi( main::@10/(byte*) BUCKET_SIZES#17 main::@5/(byte*) BUCKET_SIZES#1 )
   (word**) BUCKETS#17 ← phi( main::@10/(word**) BUCKETS#16 main::@5/(word**) BUCKETS#1 )
-  (word*) SQUARES#39 ← phi( main::@10/(word*) SQUARES#46 main::@5/(word*) SQUARES#47 )
-  (byte*) heap_head#55 ← phi( main::@10/(byte*) heap_head#60 main::@5/(byte*) heap_head#61 )
-  (byte) NUM_SQUARES#28 ← phi( main::@10/(byte) NUM_SQUARES#35 main::@5/(byte) NUM_SQUARES#36 )
+  (word*) SQUARES#40 ← phi( main::@10/(word*) SQUARES#47 main::@5/(word*) SQUARES#48 )
+  (byte*) heap_head#56 ← phi( main::@10/(byte*) heap_head#61 main::@5/(byte*) heap_head#62 )
+  (byte) NUM_SQUARES#30 ← phi( main::@10/(byte) NUM_SQUARES#37 main::@5/(byte) NUM_SQUARES#38 )
   (byte) main::bucket_idx#3 ← phi( main::@10/(byte) main::bucket_idx#5 main::@5/(byte) main::bucket_idx#2 )
   (byte) main::bucket_idx#1 ← ++ (byte) main::bucket_idx#3
   (bool~) main::$18 ← (byte) main::bucket_idx#1 == (const byte) NUM_BUCKETS
@@ -682,9 +693,9 @@ main::@7: scope:[main]  from main::@10 main::@5
 main::@6: scope:[main]  from main::@5
   (byte*) BUCKET_SIZES#22 ← phi( main::@5/(byte*) BUCKET_SIZES#1 )
   (word**) BUCKETS#24 ← phi( main::@5/(word**) BUCKETS#1 )
-  (word*) SQUARES#53 ← phi( main::@5/(word*) SQUARES#47 )
-  (byte*) heap_head#73 ← phi( main::@5/(byte*) heap_head#61 )
-  (byte) NUM_SQUARES#46 ← phi( main::@5/(byte) NUM_SQUARES#36 )
+  (word*) SQUARES#54 ← phi( main::@5/(word*) SQUARES#48 )
+  (byte*) heap_head#74 ← phi( main::@5/(byte*) heap_head#62 )
+  (byte) NUM_SQUARES#48 ← phi( main::@5/(byte) NUM_SQUARES#38 )
   (byte) main::bucket_idx#11 ← phi( main::@5/(byte) main::bucket_idx#2 )
   (byte*) SCREEN_ANGLE#8 ← phi( main::@5/(byte*) SCREEN_ANGLE#11 )
   (word*) main::bucket#4 ← phi( main::@5/(word*) main::bucket#0 )
@@ -696,9 +707,9 @@ main::@6: scope:[main]  from main::@5
 main::@8: scope:[main]  from main::@11 main::@6
   (byte*) BUCKET_SIZES#20 ← phi( main::@11/(byte*) BUCKET_SIZES#21 main::@6/(byte*) BUCKET_SIZES#22 )
   (word**) BUCKETS#20 ← phi( main::@11/(word**) BUCKETS#23 main::@6/(word**) BUCKETS#24 )
-  (word*) SQUARES#50 ← phi( main::@11/(word*) SQUARES#52 main::@6/(word*) SQUARES#53 )
-  (byte*) heap_head#67 ← phi( main::@11/(byte*) heap_head#72 main::@6/(byte*) heap_head#73 )
-  (byte) NUM_SQUARES#41 ← phi( main::@11/(byte) NUM_SQUARES#45 main::@6/(byte) NUM_SQUARES#46 )
+  (word*) SQUARES#51 ← phi( main::@11/(word*) SQUARES#53 main::@6/(word*) SQUARES#54 )
+  (byte*) heap_head#68 ← phi( main::@11/(byte*) heap_head#73 main::@6/(byte*) heap_head#74 )
+  (byte) NUM_SQUARES#43 ← phi( main::@11/(byte) NUM_SQUARES#47 main::@6/(byte) NUM_SQUARES#48 )
   (byte) main::bucket_idx#7 ← phi( main::@11/(byte) main::bucket_idx#10 main::@6/(byte) main::bucket_idx#11 )
   (byte) main::min_angle#4 ← phi( main::@11/(byte) main::min_angle#5 main::@6/(byte) main::min_angle#0 )
   (byte*) SCREEN_ANGLE#6 ← phi( main::@11/(byte*) SCREEN_ANGLE#7 main::@6/(byte*) SCREEN_ANGLE#8 )
@@ -712,9 +723,9 @@ main::@8: scope:[main]  from main::@11 main::@6
 main::@9: scope:[main]  from main::@8
   (byte*) BUCKET_SIZES#27 ← phi( main::@8/(byte*) BUCKET_SIZES#20 )
   (word**) BUCKETS#29 ← phi( main::@8/(word**) BUCKETS#20 )
-  (word*) SQUARES#57 ← phi( main::@8/(word*) SQUARES#50 )
-  (byte*) heap_head#80 ← phi( main::@8/(byte*) heap_head#67 )
-  (byte) NUM_SQUARES#51 ← phi( main::@8/(byte) NUM_SQUARES#41 )
+  (word*) SQUARES#58 ← phi( main::@8/(word*) SQUARES#51 )
+  (byte*) heap_head#81 ← phi( main::@8/(byte*) heap_head#68 )
+  (byte) NUM_SQUARES#53 ← phi( main::@8/(byte) NUM_SQUARES#43 )
   (byte) main::bucket_idx#14 ← phi( main::@8/(byte) main::bucket_idx#7 )
   (word) main::min_offset#7 ← phi( main::@8/(word) main::min_offset#4 )
   (byte) main::bucket_size#6 ← phi( main::@8/(byte) main::bucket_size#1 )
@@ -734,9 +745,9 @@ main::@10: scope:[main]  from main::@8
   (byte*) SCREEN_ANGLE#20 ← phi( main::@8/(byte*) SCREEN_ANGLE#6 )
   (byte*) BUCKET_SIZES#17 ← phi( main::@8/(byte*) BUCKET_SIZES#20 )
   (word**) BUCKETS#16 ← phi( main::@8/(word**) BUCKETS#20 )
-  (word*) SQUARES#46 ← phi( main::@8/(word*) SQUARES#50 )
-  (byte*) heap_head#60 ← phi( main::@8/(byte*) heap_head#67 )
-  (byte) NUM_SQUARES#35 ← phi( main::@8/(byte) NUM_SQUARES#41 )
+  (word*) SQUARES#47 ← phi( main::@8/(word*) SQUARES#51 )
+  (byte*) heap_head#61 ← phi( main::@8/(byte*) heap_head#68 )
+  (byte) NUM_SQUARES#37 ← phi( main::@8/(byte) NUM_SQUARES#43 )
   (byte) main::bucket_idx#5 ← phi( main::@8/(byte) main::bucket_idx#7 )
   (word) main::min_offset#2 ← phi( main::@8/(word) main::min_offset#4 )
   (bool~) main::$14 ← (word) main::min_offset#2 != (number) $ffff
@@ -746,9 +757,9 @@ main::@10: scope:[main]  from main::@8
 main::@11: scope:[main]  from main::@15 main::@16 main::@9
   (byte*) BUCKET_SIZES#21 ← phi( main::@15/(byte*) BUCKET_SIZES#25 main::@16/(byte*) BUCKET_SIZES#26 main::@9/(byte*) BUCKET_SIZES#27 )
   (word**) BUCKETS#23 ← phi( main::@15/(word**) BUCKETS#27 main::@16/(word**) BUCKETS#28 main::@9/(word**) BUCKETS#29 )
-  (word*) SQUARES#52 ← phi( main::@15/(word*) SQUARES#55 main::@16/(word*) SQUARES#56 main::@9/(word*) SQUARES#57 )
-  (byte*) heap_head#72 ← phi( main::@15/(byte*) heap_head#78 main::@16/(byte*) heap_head#79 main::@9/(byte*) heap_head#80 )
-  (byte) NUM_SQUARES#45 ← phi( main::@15/(byte) NUM_SQUARES#49 main::@16/(byte) NUM_SQUARES#50 main::@9/(byte) NUM_SQUARES#51 )
+  (word*) SQUARES#53 ← phi( main::@15/(word*) SQUARES#56 main::@16/(word*) SQUARES#57 main::@9/(word*) SQUARES#58 )
+  (byte*) heap_head#73 ← phi( main::@15/(byte*) heap_head#79 main::@16/(byte*) heap_head#80 main::@9/(byte*) heap_head#81 )
+  (byte) NUM_SQUARES#47 ← phi( main::@15/(byte) NUM_SQUARES#51 main::@16/(byte) NUM_SQUARES#52 main::@9/(byte) NUM_SQUARES#53 )
   (byte) main::bucket_idx#10 ← phi( main::@15/(byte) main::bucket_idx#12 main::@16/(byte) main::bucket_idx#13 main::@9/(byte) main::bucket_idx#14 )
   (byte) main::min_angle#5 ← phi( main::@15/(byte) main::min_angle#2 main::@16/(byte) main::min_angle#1 main::@9/(byte) main::min_angle#3 )
   (byte*) SCREEN_ANGLE#7 ← phi( main::@15/(byte*) SCREEN_ANGLE#2 main::@16/(byte*) SCREEN_ANGLE#12 main::@9/(byte*) SCREEN_ANGLE#4 )
@@ -761,9 +772,9 @@ main::@11: scope:[main]  from main::@15 main::@16 main::@9
 main::@15: scope:[main]  from main::@9
   (byte*) BUCKET_SIZES#25 ← phi( main::@9/(byte*) BUCKET_SIZES#27 )
   (word**) BUCKETS#27 ← phi( main::@9/(word**) BUCKETS#29 )
-  (word*) SQUARES#55 ← phi( main::@9/(word*) SQUARES#57 )
-  (byte*) heap_head#78 ← phi( main::@9/(byte*) heap_head#80 )
-  (byte) NUM_SQUARES#49 ← phi( main::@9/(byte) NUM_SQUARES#51 )
+  (word*) SQUARES#56 ← phi( main::@9/(word*) SQUARES#58 )
+  (byte*) heap_head#79 ← phi( main::@9/(byte*) heap_head#81 )
+  (byte) NUM_SQUARES#51 ← phi( main::@9/(byte) NUM_SQUARES#53 )
   (byte) main::bucket_idx#12 ← phi( main::@9/(byte) main::bucket_idx#14 )
   (word) main::min_offset#6 ← phi( main::@9/(word) main::min_offset#7 )
   (word*) main::bucket#5 ← phi( main::@9/(word*) main::bucket#1 )
@@ -781,9 +792,9 @@ main::@15: scope:[main]  from main::@9
 main::@16: scope:[main]  from main::@15
   (byte*) BUCKET_SIZES#26 ← phi( main::@15/(byte*) BUCKET_SIZES#25 )
   (word**) BUCKETS#28 ← phi( main::@15/(word**) BUCKETS#27 )
-  (word*) SQUARES#56 ← phi( main::@15/(word*) SQUARES#55 )
-  (byte*) heap_head#79 ← phi( main::@15/(byte*) heap_head#78 )
-  (byte) NUM_SQUARES#50 ← phi( main::@15/(byte) NUM_SQUARES#49 )
+  (word*) SQUARES#57 ← phi( main::@15/(word*) SQUARES#56 )
+  (byte*) heap_head#80 ← phi( main::@15/(byte*) heap_head#79 )
+  (byte) NUM_SQUARES#52 ← phi( main::@15/(byte) NUM_SQUARES#51 )
   (byte) main::bucket_idx#13 ← phi( main::@15/(byte) main::bucket_idx#12 )
   (byte*) SCREEN_ANGLE#12 ← phi( main::@15/(byte*) SCREEN_ANGLE#2 )
   (word*) main::bucket#6 ← phi( main::@15/(word*) main::bucket#5 )
@@ -796,9 +807,9 @@ main::@16: scope:[main]  from main::@15
   to:main::@11
 main::@18: scope:[main]  from main::@10
   (byte*) SCREEN_ANGLE#16 ← phi( main::@10/(byte*) SCREEN_ANGLE#20 )
-  (word*) SQUARES#36 ← phi( main::@10/(word*) SQUARES#46 )
-  (byte*) heap_head#53 ← phi( main::@10/(byte*) heap_head#60 )
-  (byte) NUM_SQUARES#25 ← phi( main::@10/(byte) NUM_SQUARES#35 )
+  (word*) SQUARES#37 ← phi( main::@10/(word*) SQUARES#47 )
+  (byte*) heap_head#54 ← phi( main::@10/(byte*) heap_head#61 )
+  (byte) NUM_SQUARES#27 ← phi( main::@10/(byte) NUM_SQUARES#37 )
   (byte*) BUCKET_SIZES#13 ← phi( main::@10/(byte*) BUCKET_SIZES#17 )
   (word**) BUCKETS#10 ← phi( main::@10/(word**) BUCKETS#16 )
   (byte) main::bucket_idx#8 ← phi( main::@10/(byte) main::bucket_idx#5 )
@@ -810,36 +821,36 @@ main::@18: scope:[main]  from main::@10
   to:main::@1
 main::@21: scope:[main]  from main::@7
   (byte*) SCREEN_ANGLE#17 ← phi( main::@7/(byte*) SCREEN_ANGLE#21 )
-  (word*) SQUARES#37 ← phi( main::@7/(word*) SQUARES#39 )
-  (byte*) heap_head#54 ← phi( main::@7/(byte*) heap_head#55 )
-  (byte) NUM_SQUARES#26 ← phi( main::@7/(byte) NUM_SQUARES#28 )
+  (word*) SQUARES#38 ← phi( main::@7/(word*) SQUARES#40 )
+  (byte*) heap_head#55 ← phi( main::@7/(byte*) heap_head#56 )
+  (byte) NUM_SQUARES#28 ← phi( main::@7/(byte) NUM_SQUARES#30 )
   (byte*) BUCKET_SIZES#14 ← phi( main::@7/(byte*) BUCKET_SIZES#18 )
   (word**) BUCKETS#11 ← phi( main::@7/(word**) BUCKETS#17 )
   (byte) main::bucket_idx#9 ← phi( main::@7/(byte) main::bucket_idx#1 )
   *((const byte*) BORDERCOL) ← -- *((const byte*) BORDERCOL)
   to:main::@1
 main::@25: scope:[main]  from main::@7
-  (word*) SQUARES#27 ← phi( main::@7/(word*) SQUARES#39 )
-  (byte*) heap_head#48 ← phi( main::@7/(byte*) heap_head#55 )
-  (byte) NUM_SQUARES#19 ← phi( main::@7/(byte) NUM_SQUARES#28 )
+  (word*) SQUARES#28 ← phi( main::@7/(word*) SQUARES#40 )
+  (byte*) heap_head#49 ← phi( main::@7/(byte*) heap_head#56 )
+  (byte) NUM_SQUARES#21 ← phi( main::@7/(byte) NUM_SQUARES#30 )
   *((const byte*) BORDERCOL) ← -- *((const byte*) BORDERCOL)
   to:main::@28
 main::@28: scope:[main]  from main::@1 main::@25 main::@29
-  (word*) SQUARES#22 ← phi( main::@1/(word*) SQUARES#26 main::@25/(word*) SQUARES#27 main::@29/(word*) SQUARES#28 )
-  (byte*) heap_head#41 ← phi( main::@1/(byte*) heap_head#47 main::@25/(byte*) heap_head#48 main::@29/(byte*) heap_head#49 )
-  (byte) NUM_SQUARES#15 ← phi( main::@1/(byte) NUM_SQUARES#18 main::@25/(byte) NUM_SQUARES#19 main::@29/(byte) NUM_SQUARES#20 )
+  (word*) SQUARES#22 ← phi( main::@1/(word*) SQUARES#27 main::@25/(word*) SQUARES#28 main::@29/(word*) SQUARES#29 )
+  (byte*) heap_head#41 ← phi( main::@1/(byte*) heap_head#48 main::@25/(byte*) heap_head#49 main::@29/(byte*) heap_head#50 )
+  (byte) NUM_SQUARES#17 ← phi( main::@1/(byte) NUM_SQUARES#20 main::@25/(byte) NUM_SQUARES#21 main::@29/(byte) NUM_SQUARES#22 )
   if(true) goto main::@29
   to:main::@return
 main::@29: scope:[main]  from main::@28
-  (word*) SQUARES#28 ← phi( main::@28/(word*) SQUARES#22 )
-  (byte*) heap_head#49 ← phi( main::@28/(byte*) heap_head#41 )
-  (byte) NUM_SQUARES#20 ← phi( main::@28/(byte) NUM_SQUARES#15 )
+  (word*) SQUARES#29 ← phi( main::@28/(word*) SQUARES#22 )
+  (byte*) heap_head#50 ← phi( main::@28/(byte*) heap_head#41 )
+  (byte) NUM_SQUARES#22 ← phi( main::@28/(byte) NUM_SQUARES#17 )
   *((const byte*) COLS+(number) $3e7) ← ++ *((const byte*) COLS+(number) $3e7)
   to:main::@28
 main::@return: scope:[main]  from main::@28
   (word*) SQUARES#13 ← phi( main::@28/(word*) SQUARES#22 )
   (byte*) heap_head#29 ← phi( main::@28/(byte*) heap_head#41 )
-  (byte) NUM_SQUARES#10 ← phi( main::@28/(byte) NUM_SQUARES#15 )
+  (byte) NUM_SQUARES#10 ← phi( main::@28/(byte) NUM_SQUARES#17 )
   (byte) NUM_SQUARES#2 ← (byte) NUM_SQUARES#10
   (byte*) heap_head#12 ← (byte*) heap_head#29
   (word*) SQUARES#4 ← (word*) SQUARES#13
@@ -850,7 +861,7 @@ main::@return: scope:[main]  from main::@28
 init_buckets: scope:[init_buckets]  from main::@35
   (byte*) BUCKET_IDX#11 ← phi( main::@35/(byte*) BUCKET_IDX#12 )
   (word**) BUCKETS#25 ← phi( main::@35/(word**) BUCKETS#15 )
-  (byte*) heap_head#74 ← phi( main::@35/(byte*) heap_head#40 )
+  (byte*) heap_head#75 ← phi( main::@35/(byte*) heap_head#40 )
   (byte*) init_buckets::screen#6 ← phi( main::@35/(byte*) init_buckets::screen#0 )
   (byte*) BUCKET_SIZES#6 ← phi( main::@35/(byte*) BUCKET_SIZES#11 )
   (byte) init_buckets::i#0 ← (byte) 0
@@ -858,7 +869,7 @@ init_buckets: scope:[init_buckets]  from main::@35
 init_buckets::@1: scope:[init_buckets]  from init_buckets init_buckets::@1
   (byte*) BUCKET_IDX#10 ← phi( init_buckets/(byte*) BUCKET_IDX#11 init_buckets::@1/(byte*) BUCKET_IDX#10 )
   (word**) BUCKETS#21 ← phi( init_buckets/(word**) BUCKETS#25 init_buckets::@1/(word**) BUCKETS#21 )
-  (byte*) heap_head#68 ← phi( init_buckets/(byte*) heap_head#74 init_buckets::@1/(byte*) heap_head#68 )
+  (byte*) heap_head#69 ← phi( init_buckets/(byte*) heap_head#75 init_buckets::@1/(byte*) heap_head#69 )
   (byte*) init_buckets::screen#4 ← phi( init_buckets/(byte*) init_buckets::screen#6 init_buckets::@1/(byte*) init_buckets::screen#4 )
   (byte) init_buckets::i#2 ← phi( init_buckets/(byte) init_buckets::i#0 init_buckets::@1/(byte) init_buckets::i#1 )
   (byte*) BUCKET_SIZES#2 ← phi( init_buckets/(byte*) BUCKET_SIZES#6 init_buckets::@1/(byte*) BUCKET_SIZES#2 )
@@ -870,7 +881,7 @@ init_buckets::@1: scope:[init_buckets]  from init_buckets init_buckets::@1
 init_buckets::@2: scope:[init_buckets]  from init_buckets::@1
   (byte*) BUCKET_IDX#9 ← phi( init_buckets::@1/(byte*) BUCKET_IDX#10 )
   (word**) BUCKETS#18 ← phi( init_buckets::@1/(word**) BUCKETS#21 )
-  (byte*) heap_head#62 ← phi( init_buckets::@1/(byte*) heap_head#68 )
+  (byte*) heap_head#63 ← phi( init_buckets::@1/(byte*) heap_head#69 )
   (byte*) BUCKET_SIZES#7 ← phi( init_buckets::@1/(byte*) BUCKET_SIZES#2 )
   (byte*) init_buckets::screen#1 ← phi( init_buckets::@1/(byte*) init_buckets::screen#4 )
   (byte*) init_buckets::dist#0 ← (byte*) init_buckets::screen#1
@@ -880,7 +891,7 @@ init_buckets::@3: scope:[init_buckets]  from init_buckets::@2 init_buckets::@3
   (byte*) init_buckets::screen#11 ← phi( init_buckets::@2/(byte*) init_buckets::screen#1 init_buckets::@3/(byte*) init_buckets::screen#11 )
   (byte*) BUCKET_IDX#8 ← phi( init_buckets::@2/(byte*) BUCKET_IDX#9 init_buckets::@3/(byte*) BUCKET_IDX#8 )
   (word**) BUCKETS#13 ← phi( init_buckets::@2/(word**) BUCKETS#18 init_buckets::@3/(word**) BUCKETS#13 )
-  (byte*) heap_head#56 ← phi( init_buckets::@2/(byte*) heap_head#62 init_buckets::@3/(byte*) heap_head#56 )
+  (byte*) heap_head#57 ← phi( init_buckets::@2/(byte*) heap_head#63 init_buckets::@3/(byte*) heap_head#57 )
   (word) init_buckets::i1#2 ← phi( init_buckets::@2/(word) init_buckets::i1#0 init_buckets::@3/(word) init_buckets::i1#1 )
   (byte*) init_buckets::dist#4 ← phi( init_buckets::@2/(byte*) init_buckets::dist#0 init_buckets::@3/(byte*) init_buckets::dist#1 )
   (byte*) BUCKET_SIZES#3 ← phi( init_buckets::@2/(byte*) BUCKET_SIZES#7 init_buckets::@3/(byte*) BUCKET_SIZES#3 )
@@ -894,7 +905,7 @@ init_buckets::@4: scope:[init_buckets]  from init_buckets::@3
   (byte*) init_buckets::screen#10 ← phi( init_buckets::@3/(byte*) init_buckets::screen#11 )
   (byte*) BUCKET_IDX#7 ← phi( init_buckets::@3/(byte*) BUCKET_IDX#8 )
   (word**) BUCKETS#8 ← phi( init_buckets::@3/(word**) BUCKETS#13 )
-  (byte*) heap_head#50 ← phi( init_buckets::@3/(byte*) heap_head#56 )
+  (byte*) heap_head#51 ← phi( init_buckets::@3/(byte*) heap_head#57 )
   (byte*) BUCKET_SIZES#9 ← phi( init_buckets::@3/(byte*) BUCKET_SIZES#3 )
   (word) init_buckets::i2#0 ← (word) 0
   to:init_buckets::@5
@@ -902,7 +913,7 @@ init_buckets::@5: scope:[init_buckets]  from init_buckets::@11 init_buckets::@4
   (byte*) init_buckets::screen#9 ← phi( init_buckets::@11/(byte*) init_buckets::screen#8 init_buckets::@4/(byte*) init_buckets::screen#10 )
   (byte*) BUCKET_IDX#6 ← phi( init_buckets::@11/(byte*) BUCKET_IDX#5 init_buckets::@4/(byte*) BUCKET_IDX#7 )
   (word**) BUCKETS#5 ← phi( init_buckets::@11/(word**) BUCKETS#2 init_buckets::@4/(word**) BUCKETS#8 )
-  (byte*) heap_head#36 ← phi( init_buckets::@11/(byte*) heap_head#13 init_buckets::@4/(byte*) heap_head#50 )
+  (byte*) heap_head#36 ← phi( init_buckets::@11/(byte*) heap_head#13 init_buckets::@4/(byte*) heap_head#51 )
   (word) init_buckets::i2#2 ← phi( init_buckets::@11/(word) init_buckets::i2#1 init_buckets::@4/(word) init_buckets::i2#0 )
   (byte*) BUCKET_SIZES#4 ← phi( init_buckets::@11/(byte*) BUCKET_SIZES#8 init_buckets::@4/(byte*) BUCKET_SIZES#9 )
   (byte~) init_buckets::$3 ← *((byte*) BUCKET_SIZES#4 + (word) init_buckets::i2#2) * (const byte) SIZEOF_POINTER
@@ -927,14 +938,14 @@ init_buckets::@11: scope:[init_buckets]  from init_buckets::@5
   if((bool~) init_buckets::$5) goto init_buckets::@5
   to:init_buckets::@6
 init_buckets::@6: scope:[init_buckets]  from init_buckets::@11
-  (byte*) heap_head#63 ← phi( init_buckets::@11/(byte*) heap_head#13 )
+  (byte*) heap_head#64 ← phi( init_buckets::@11/(byte*) heap_head#13 )
   (word**) BUCKETS#14 ← phi( init_buckets::@11/(word**) BUCKETS#2 )
   (byte*) init_buckets::screen#7 ← phi( init_buckets::@11/(byte*) init_buckets::screen#8 )
   (byte*) BUCKET_IDX#3 ← phi( init_buckets::@11/(byte*) BUCKET_IDX#5 )
   (byte) init_buckets::i3#0 ← (byte) 0
   to:init_buckets::@7
 init_buckets::@7: scope:[init_buckets]  from init_buckets::@6 init_buckets::@7
-  (byte*) heap_head#57 ← phi( init_buckets::@6/(byte*) heap_head#63 init_buckets::@7/(byte*) heap_head#57 )
+  (byte*) heap_head#58 ← phi( init_buckets::@6/(byte*) heap_head#64 init_buckets::@7/(byte*) heap_head#58 )
   (word**) BUCKETS#9 ← phi( init_buckets::@6/(word**) BUCKETS#14 init_buckets::@7/(word**) BUCKETS#9 )
   (byte*) init_buckets::screen#5 ← phi( init_buckets::@6/(byte*) init_buckets::screen#7 init_buckets::@7/(byte*) init_buckets::screen#5 )
   (byte) init_buckets::i3#2 ← phi( init_buckets::@6/(byte) init_buckets::i3#0 init_buckets::@7/(byte) init_buckets::i3#1 )
@@ -945,7 +956,7 @@ init_buckets::@7: scope:[init_buckets]  from init_buckets::@6 init_buckets::@7
   if((bool~) init_buckets::$6) goto init_buckets::@7
   to:init_buckets::@8
 init_buckets::@8: scope:[init_buckets]  from init_buckets::@7
-  (byte*) heap_head#51 ← phi( init_buckets::@7/(byte*) heap_head#57 )
+  (byte*) heap_head#52 ← phi( init_buckets::@7/(byte*) heap_head#58 )
   (byte*) BUCKET_IDX#4 ← phi( init_buckets::@7/(byte*) BUCKET_IDX#1 )
   (word**) BUCKETS#6 ← phi( init_buckets::@7/(word**) BUCKETS#9 )
   (byte*) init_buckets::screen#2 ← phi( init_buckets::@7/(byte*) init_buckets::screen#5 )
@@ -953,7 +964,7 @@ init_buckets::@8: scope:[init_buckets]  from init_buckets::@7
   (word) init_buckets::i4#0 ← (word) 0
   to:init_buckets::@9
 init_buckets::@9: scope:[init_buckets]  from init_buckets::@8 init_buckets::@9
-  (byte*) heap_head#42 ← phi( init_buckets::@8/(byte*) heap_head#51 init_buckets::@9/(byte*) heap_head#42 )
+  (byte*) heap_head#42 ← phi( init_buckets::@8/(byte*) heap_head#52 init_buckets::@9/(byte*) heap_head#42 )
   (word) init_buckets::i4#2 ← phi( init_buckets::@8/(word) init_buckets::i4#0 init_buckets::@9/(word) init_buckets::i4#1 )
   (byte*) BUCKET_IDX#2 ← phi( init_buckets::@8/(byte*) BUCKET_IDX#4 init_buckets::@9/(byte*) BUCKET_IDX#2 )
   (byte*) init_buckets::screen#3 ← phi( init_buckets::@8/(byte*) init_buckets::screen#2 init_buckets::@9/(byte*) init_buckets::screen#3 )
@@ -1068,7 +1079,7 @@ init_dist_screen: scope:[init_dist_screen]  from main
   call init_squares 
   to:init_dist_screen::@19
 init_dist_screen::@19: scope:[init_dist_screen]  from init_dist_screen
-  (byte) NUM_SQUARES#52 ← phi( init_dist_screen/(byte) NUM_SQUARES#3 )
+  (byte) NUM_SQUARES#54 ← phi( init_dist_screen/(byte) NUM_SQUARES#3 )
   (byte*) init_dist_screen::screen#1 ← phi( init_dist_screen/(byte*) init_dist_screen::screen#2 )
   (word*) SQUARES#14 ← phi( init_dist_screen/(word*) SQUARES#2 )
   (byte*) heap_head#32 ← phi( init_dist_screen/(byte*) heap_head#4 )
@@ -1080,11 +1091,11 @@ init_dist_screen::@19: scope:[init_dist_screen]  from init_dist_screen
   (byte) init_dist_screen::y#0 ← (byte) 0
   to:init_dist_screen::@1
 init_dist_screen::@1: scope:[init_dist_screen]  from init_dist_screen::@19 init_dist_screen::@7
-  (byte*) heap_head#75 ← phi( init_dist_screen::@19/(byte*) heap_head#15 init_dist_screen::@7/(byte*) heap_head#44 )
-  (byte) NUM_SQUARES#47 ← phi( init_dist_screen::@19/(byte) NUM_SQUARES#52 init_dist_screen::@7/(byte) NUM_SQUARES#16 )
+  (byte*) heap_head#76 ← phi( init_dist_screen::@19/(byte*) heap_head#15 init_dist_screen::@7/(byte*) heap_head#44 )
+  (byte) NUM_SQUARES#49 ← phi( init_dist_screen::@19/(byte) NUM_SQUARES#54 init_dist_screen::@7/(byte) NUM_SQUARES#18 )
   (byte*) init_dist_screen::screen_bottomline#14 ← phi( init_dist_screen::@19/(byte*) init_dist_screen::screen_bottomline#0 init_dist_screen::@7/(byte*) init_dist_screen::screen_bottomline#1 )
   (byte*) init_dist_screen::screen_topline#14 ← phi( init_dist_screen::@19/(byte*) init_dist_screen::screen_topline#0 init_dist_screen::@7/(byte*) init_dist_screen::screen_topline#1 )
-  (word*) SQUARES#40 ← phi( init_dist_screen::@19/(word*) SQUARES#5 init_dist_screen::@7/(word*) SQUARES#24 )
+  (word*) SQUARES#41 ← phi( init_dist_screen::@19/(word*) SQUARES#5 init_dist_screen::@7/(word*) SQUARES#24 )
   (byte) init_dist_screen::y#2 ← phi( init_dist_screen::@19/(byte) init_dist_screen::y#0 init_dist_screen::@7/(byte) init_dist_screen::y#1 )
   (number~) init_dist_screen::$2 ← (byte) init_dist_screen::y#2 * (number) 2
   (byte) init_dist_screen::y2#0 ← (number~) init_dist_screen::$2
@@ -1092,34 +1103,34 @@ init_dist_screen::@1: scope:[init_dist_screen]  from init_dist_screen::@19 init_
   if((bool~) init_dist_screen::$3) goto init_dist_screen::@2
   to:init_dist_screen::@3
 init_dist_screen::@2: scope:[init_dist_screen]  from init_dist_screen::@1
-  (byte*) heap_head#69 ← phi( init_dist_screen::@1/(byte*) heap_head#75 )
-  (byte) NUM_SQUARES#42 ← phi( init_dist_screen::@1/(byte) NUM_SQUARES#47 )
+  (byte*) heap_head#70 ← phi( init_dist_screen::@1/(byte*) heap_head#76 )
+  (byte) NUM_SQUARES#44 ← phi( init_dist_screen::@1/(byte) NUM_SQUARES#49 )
   (byte) init_dist_screen::y#9 ← phi( init_dist_screen::@1/(byte) init_dist_screen::y#2 )
   (byte*) init_dist_screen::screen_bottomline#11 ← phi( init_dist_screen::@1/(byte*) init_dist_screen::screen_bottomline#14 )
   (byte*) init_dist_screen::screen_topline#11 ← phi( init_dist_screen::@1/(byte*) init_dist_screen::screen_topline#14 )
-  (word*) SQUARES#29 ← phi( init_dist_screen::@1/(word*) SQUARES#40 )
+  (word*) SQUARES#30 ← phi( init_dist_screen::@1/(word*) SQUARES#41 )
   (byte) init_dist_screen::y2#1 ← phi( init_dist_screen::@1/(byte) init_dist_screen::y2#0 )
   (number~) init_dist_screen::$6 ← (byte) init_dist_screen::y2#1 - (number) $18
   (number~) init_dist_screen::$7 ← (number~) init_dist_screen::$6
   to:init_dist_screen::@4
 init_dist_screen::@3: scope:[init_dist_screen]  from init_dist_screen::@1
-  (byte*) heap_head#70 ← phi( init_dist_screen::@1/(byte*) heap_head#75 )
-  (byte) NUM_SQUARES#43 ← phi( init_dist_screen::@1/(byte) NUM_SQUARES#47 )
+  (byte*) heap_head#71 ← phi( init_dist_screen::@1/(byte*) heap_head#76 )
+  (byte) NUM_SQUARES#45 ← phi( init_dist_screen::@1/(byte) NUM_SQUARES#49 )
   (byte) init_dist_screen::y#10 ← phi( init_dist_screen::@1/(byte) init_dist_screen::y#2 )
   (byte*) init_dist_screen::screen_bottomline#12 ← phi( init_dist_screen::@1/(byte*) init_dist_screen::screen_bottomline#14 )
   (byte*) init_dist_screen::screen_topline#12 ← phi( init_dist_screen::@1/(byte*) init_dist_screen::screen_topline#14 )
-  (word*) SQUARES#30 ← phi( init_dist_screen::@1/(word*) SQUARES#40 )
+  (word*) SQUARES#31 ← phi( init_dist_screen::@1/(word*) SQUARES#41 )
   (byte) init_dist_screen::y2#2 ← phi( init_dist_screen::@1/(byte) init_dist_screen::y2#0 )
   (number~) init_dist_screen::$4 ← (number) $18 - (byte) init_dist_screen::y2#2
   (number~) init_dist_screen::$5 ← (number~) init_dist_screen::$4
   to:init_dist_screen::@4
 init_dist_screen::@4: scope:[init_dist_screen]  from init_dist_screen::@2 init_dist_screen::@3
-  (byte*) heap_head#64 ← phi( init_dist_screen::@2/(byte*) heap_head#69 init_dist_screen::@3/(byte*) heap_head#70 )
-  (byte) NUM_SQUARES#37 ← phi( init_dist_screen::@2/(byte) NUM_SQUARES#42 init_dist_screen::@3/(byte) NUM_SQUARES#43 )
+  (byte*) heap_head#65 ← phi( init_dist_screen::@2/(byte*) heap_head#70 init_dist_screen::@3/(byte*) heap_head#71 )
+  (byte) NUM_SQUARES#39 ← phi( init_dist_screen::@2/(byte) NUM_SQUARES#44 init_dist_screen::@3/(byte) NUM_SQUARES#45 )
   (byte) init_dist_screen::y#7 ← phi( init_dist_screen::@2/(byte) init_dist_screen::y#9 init_dist_screen::@3/(byte) init_dist_screen::y#10 )
   (byte*) init_dist_screen::screen_bottomline#8 ← phi( init_dist_screen::@2/(byte*) init_dist_screen::screen_bottomline#11 init_dist_screen::@3/(byte*) init_dist_screen::screen_bottomline#12 )
   (byte*) init_dist_screen::screen_topline#8 ← phi( init_dist_screen::@2/(byte*) init_dist_screen::screen_topline#11 init_dist_screen::@3/(byte*) init_dist_screen::screen_topline#12 )
-  (word*) SQUARES#19 ← phi( init_dist_screen::@2/(word*) SQUARES#29 init_dist_screen::@3/(word*) SQUARES#30 )
+  (word*) SQUARES#19 ← phi( init_dist_screen::@2/(word*) SQUARES#30 init_dist_screen::@3/(word*) SQUARES#31 )
   (number~) init_dist_screen::$8 ← phi( init_dist_screen::@2/(number~) init_dist_screen::$7 init_dist_screen::@3/(number~) init_dist_screen::$5 )
   (byte) init_dist_screen::yd#0 ← (number~) init_dist_screen::$8
   (byte) sqr::val#0 ← (byte) init_dist_screen::yd#0
@@ -1127,9 +1138,9 @@ init_dist_screen::@4: scope:[init_dist_screen]  from init_dist_screen::@2 init_d
   (word) sqr::return#2 ← (word) sqr::return#1
   to:init_dist_screen::@20
 init_dist_screen::@20: scope:[init_dist_screen]  from init_dist_screen::@4
-  (word*) SQUARES#41 ← phi( init_dist_screen::@4/(word*) SQUARES#19 )
-  (byte*) heap_head#58 ← phi( init_dist_screen::@4/(byte*) heap_head#64 )
-  (byte) NUM_SQUARES#29 ← phi( init_dist_screen::@4/(byte) NUM_SQUARES#37 )
+  (word*) SQUARES#42 ← phi( init_dist_screen::@4/(word*) SQUARES#19 )
+  (byte*) heap_head#59 ← phi( init_dist_screen::@4/(byte*) heap_head#65 )
+  (byte) NUM_SQUARES#31 ← phi( init_dist_screen::@4/(byte) NUM_SQUARES#39 )
   (byte) init_dist_screen::y#5 ← phi( init_dist_screen::@4/(byte) init_dist_screen::y#7 )
   (byte*) init_dist_screen::screen_bottomline#6 ← phi( init_dist_screen::@4/(byte*) init_dist_screen::screen_bottomline#8 )
   (byte*) init_dist_screen::screen_topline#6 ← phi( init_dist_screen::@4/(byte*) init_dist_screen::screen_topline#8 )
@@ -1142,9 +1153,9 @@ init_dist_screen::@20: scope:[init_dist_screen]  from init_dist_screen::@4
 init_dist_screen::@5: scope:[init_dist_screen]  from init_dist_screen::@20 init_dist_screen::@22
   (byte) init_dist_screen::xb#8 ← phi( init_dist_screen::@20/(byte) init_dist_screen::xb#0 init_dist_screen::@22/(byte) init_dist_screen::xb#1 )
   (word) init_dist_screen::yds#6 ← phi( init_dist_screen::@20/(word) init_dist_screen::yds#0 init_dist_screen::@22/(word) init_dist_screen::yds#7 )
-  (word*) SQUARES#31 ← phi( init_dist_screen::@20/(word*) SQUARES#41 init_dist_screen::@22/(word*) SQUARES#42 )
-  (byte*) heap_head#52 ← phi( init_dist_screen::@20/(byte*) heap_head#58 init_dist_screen::@22/(byte*) heap_head#59 )
-  (byte) NUM_SQUARES#21 ← phi( init_dist_screen::@20/(byte) NUM_SQUARES#29 init_dist_screen::@22/(byte) NUM_SQUARES#30 )
+  (word*) SQUARES#32 ← phi( init_dist_screen::@20/(word*) SQUARES#42 init_dist_screen::@22/(word*) SQUARES#43 )
+  (byte*) heap_head#53 ← phi( init_dist_screen::@20/(byte*) heap_head#59 init_dist_screen::@22/(byte*) heap_head#60 )
+  (byte) NUM_SQUARES#23 ← phi( init_dist_screen::@20/(byte) NUM_SQUARES#31 init_dist_screen::@22/(byte) NUM_SQUARES#32 )
   (byte) init_dist_screen::y#4 ← phi( init_dist_screen::@20/(byte) init_dist_screen::y#5 init_dist_screen::@22/(byte) init_dist_screen::y#6 )
   (byte*) init_dist_screen::screen_bottomline#4 ← phi( init_dist_screen::@20/(byte*) init_dist_screen::screen_bottomline#6 init_dist_screen::@22/(byte*) init_dist_screen::screen_bottomline#3 )
   (byte*) init_dist_screen::screen_topline#4 ← phi( init_dist_screen::@20/(byte*) init_dist_screen::screen_topline#6 init_dist_screen::@22/(byte*) init_dist_screen::screen_topline#3 )
@@ -1153,14 +1164,14 @@ init_dist_screen::@5: scope:[init_dist_screen]  from init_dist_screen::@20 init_
   if((bool~) init_dist_screen::$10) goto init_dist_screen::@6
   to:init_dist_screen::@7
 init_dist_screen::@6: scope:[init_dist_screen]  from init_dist_screen::@5
-  (byte*) heap_head#81 ← phi( init_dist_screen::@5/(byte*) heap_head#52 )
+  (byte*) heap_head#82 ← phi( init_dist_screen::@5/(byte*) heap_head#53 )
   (byte) init_dist_screen::y#14 ← phi( init_dist_screen::@5/(byte) init_dist_screen::y#4 )
   (byte) init_dist_screen::xb#7 ← phi( init_dist_screen::@5/(byte) init_dist_screen::xb#8 )
   (byte*) init_dist_screen::screen_bottomline#13 ← phi( init_dist_screen::@5/(byte*) init_dist_screen::screen_bottomline#4 )
   (byte*) init_dist_screen::screen_topline#13 ← phi( init_dist_screen::@5/(byte*) init_dist_screen::screen_topline#4 )
-  (byte) NUM_SQUARES#38 ← phi( init_dist_screen::@5/(byte) NUM_SQUARES#21 )
+  (byte) NUM_SQUARES#40 ← phi( init_dist_screen::@5/(byte) NUM_SQUARES#23 )
   (word) init_dist_screen::yds#5 ← phi( init_dist_screen::@5/(word) init_dist_screen::yds#6 )
-  (word*) SQUARES#43 ← phi( init_dist_screen::@5/(word*) SQUARES#31 )
+  (word*) SQUARES#44 ← phi( init_dist_screen::@5/(word*) SQUARES#32 )
   (byte) init_dist_screen::x#3 ← phi( init_dist_screen::@5/(byte) init_dist_screen::x#2 )
   (number~) init_dist_screen::$11 ← (byte) init_dist_screen::x#3 * (number) 2
   (byte) init_dist_screen::x2#0 ← (number~) init_dist_screen::$11
@@ -1168,9 +1179,9 @@ init_dist_screen::@6: scope:[init_dist_screen]  from init_dist_screen::@5
   if((bool~) init_dist_screen::$12) goto init_dist_screen::@8
   to:init_dist_screen::@9
 init_dist_screen::@7: scope:[init_dist_screen]  from init_dist_screen::@5
-  (word*) SQUARES#24 ← phi( init_dist_screen::@5/(word*) SQUARES#31 )
-  (byte*) heap_head#44 ← phi( init_dist_screen::@5/(byte*) heap_head#52 )
-  (byte) NUM_SQUARES#16 ← phi( init_dist_screen::@5/(byte) NUM_SQUARES#21 )
+  (word*) SQUARES#24 ← phi( init_dist_screen::@5/(word*) SQUARES#32 )
+  (byte*) heap_head#44 ← phi( init_dist_screen::@5/(byte*) heap_head#53 )
+  (byte) NUM_SQUARES#18 ← phi( init_dist_screen::@5/(byte) NUM_SQUARES#23 )
   (byte) init_dist_screen::y#3 ← phi( init_dist_screen::@5/(byte) init_dist_screen::y#4 )
   (byte*) init_dist_screen::screen_bottomline#2 ← phi( init_dist_screen::@5/(byte*) init_dist_screen::screen_bottomline#4 )
   (byte*) init_dist_screen::screen_topline#2 ← phi( init_dist_screen::@5/(byte*) init_dist_screen::screen_topline#4 )
@@ -1181,43 +1192,43 @@ init_dist_screen::@7: scope:[init_dist_screen]  from init_dist_screen::@5
   if((bool~) init_dist_screen::$21) goto init_dist_screen::@1
   to:init_dist_screen::@return
 init_dist_screen::@8: scope:[init_dist_screen]  from init_dist_screen::@6
-  (byte*) heap_head#76 ← phi( init_dist_screen::@6/(byte*) heap_head#81 )
+  (byte*) heap_head#77 ← phi( init_dist_screen::@6/(byte*) heap_head#82 )
   (byte) init_dist_screen::y#12 ← phi( init_dist_screen::@6/(byte) init_dist_screen::y#14 )
   (byte) init_dist_screen::xb#5 ← phi( init_dist_screen::@6/(byte) init_dist_screen::xb#7 )
   (byte*) init_dist_screen::screen_bottomline#9 ← phi( init_dist_screen::@6/(byte*) init_dist_screen::screen_bottomline#13 )
   (byte) init_dist_screen::x#7 ← phi( init_dist_screen::@6/(byte) init_dist_screen::x#3 )
   (byte*) init_dist_screen::screen_topline#9 ← phi( init_dist_screen::@6/(byte*) init_dist_screen::screen_topline#13 )
-  (byte) NUM_SQUARES#31 ← phi( init_dist_screen::@6/(byte) NUM_SQUARES#38 )
+  (byte) NUM_SQUARES#33 ← phi( init_dist_screen::@6/(byte) NUM_SQUARES#40 )
   (word) init_dist_screen::yds#3 ← phi( init_dist_screen::@6/(word) init_dist_screen::yds#5 )
-  (word*) SQUARES#32 ← phi( init_dist_screen::@6/(word*) SQUARES#43 )
+  (word*) SQUARES#33 ← phi( init_dist_screen::@6/(word*) SQUARES#44 )
   (byte) init_dist_screen::x2#1 ← phi( init_dist_screen::@6/(byte) init_dist_screen::x2#0 )
   (number~) init_dist_screen::$15 ← (byte) init_dist_screen::x2#1 - (number) $27
   (number~) init_dist_screen::$16 ← (number~) init_dist_screen::$15
   to:init_dist_screen::@10
 init_dist_screen::@9: scope:[init_dist_screen]  from init_dist_screen::@6
-  (byte*) heap_head#77 ← phi( init_dist_screen::@6/(byte*) heap_head#81 )
+  (byte*) heap_head#78 ← phi( init_dist_screen::@6/(byte*) heap_head#82 )
   (byte) init_dist_screen::y#13 ← phi( init_dist_screen::@6/(byte) init_dist_screen::y#14 )
   (byte) init_dist_screen::xb#6 ← phi( init_dist_screen::@6/(byte) init_dist_screen::xb#7 )
   (byte*) init_dist_screen::screen_bottomline#10 ← phi( init_dist_screen::@6/(byte*) init_dist_screen::screen_bottomline#13 )
   (byte) init_dist_screen::x#8 ← phi( init_dist_screen::@6/(byte) init_dist_screen::x#3 )
   (byte*) init_dist_screen::screen_topline#10 ← phi( init_dist_screen::@6/(byte*) init_dist_screen::screen_topline#13 )
-  (byte) NUM_SQUARES#32 ← phi( init_dist_screen::@6/(byte) NUM_SQUARES#38 )
+  (byte) NUM_SQUARES#34 ← phi( init_dist_screen::@6/(byte) NUM_SQUARES#40 )
   (word) init_dist_screen::yds#4 ← phi( init_dist_screen::@6/(word) init_dist_screen::yds#5 )
-  (word*) SQUARES#33 ← phi( init_dist_screen::@6/(word*) SQUARES#43 )
+  (word*) SQUARES#34 ← phi( init_dist_screen::@6/(word*) SQUARES#44 )
   (byte) init_dist_screen::x2#2 ← phi( init_dist_screen::@6/(byte) init_dist_screen::x2#0 )
   (number~) init_dist_screen::$13 ← (number) $27 - (byte) init_dist_screen::x2#2
   (number~) init_dist_screen::$14 ← (number~) init_dist_screen::$13
   to:init_dist_screen::@10
 init_dist_screen::@10: scope:[init_dist_screen]  from init_dist_screen::@8 init_dist_screen::@9
-  (byte*) heap_head#71 ← phi( init_dist_screen::@8/(byte*) heap_head#76 init_dist_screen::@9/(byte*) heap_head#77 )
+  (byte*) heap_head#72 ← phi( init_dist_screen::@8/(byte*) heap_head#77 init_dist_screen::@9/(byte*) heap_head#78 )
   (byte) init_dist_screen::y#11 ← phi( init_dist_screen::@8/(byte) init_dist_screen::y#12 init_dist_screen::@9/(byte) init_dist_screen::y#13 )
   (byte) init_dist_screen::xb#4 ← phi( init_dist_screen::@8/(byte) init_dist_screen::xb#5 init_dist_screen::@9/(byte) init_dist_screen::xb#6 )
   (byte*) init_dist_screen::screen_bottomline#7 ← phi( init_dist_screen::@8/(byte*) init_dist_screen::screen_bottomline#9 init_dist_screen::@9/(byte*) init_dist_screen::screen_bottomline#10 )
   (byte) init_dist_screen::x#6 ← phi( init_dist_screen::@8/(byte) init_dist_screen::x#7 init_dist_screen::@9/(byte) init_dist_screen::x#8 )
   (byte*) init_dist_screen::screen_topline#7 ← phi( init_dist_screen::@8/(byte*) init_dist_screen::screen_topline#9 init_dist_screen::@9/(byte*) init_dist_screen::screen_topline#10 )
-  (byte) NUM_SQUARES#22 ← phi( init_dist_screen::@8/(byte) NUM_SQUARES#31 init_dist_screen::@9/(byte) NUM_SQUARES#32 )
+  (byte) NUM_SQUARES#24 ← phi( init_dist_screen::@8/(byte) NUM_SQUARES#33 init_dist_screen::@9/(byte) NUM_SQUARES#34 )
   (word) init_dist_screen::yds#2 ← phi( init_dist_screen::@8/(word) init_dist_screen::yds#3 init_dist_screen::@9/(word) init_dist_screen::yds#4 )
-  (word*) SQUARES#18 ← phi( init_dist_screen::@8/(word*) SQUARES#32 init_dist_screen::@9/(word*) SQUARES#33 )
+  (word*) SQUARES#18 ← phi( init_dist_screen::@8/(word*) SQUARES#33 init_dist_screen::@9/(word*) SQUARES#34 )
   (number~) init_dist_screen::$17 ← phi( init_dist_screen::@8/(number~) init_dist_screen::$16 init_dist_screen::@9/(number~) init_dist_screen::$14 )
   (byte) init_dist_screen::xd#0 ← (number~) init_dist_screen::$17
   (byte) sqr::val#1 ← (byte) init_dist_screen::xd#0
@@ -1225,13 +1236,13 @@ init_dist_screen::@10: scope:[init_dist_screen]  from init_dist_screen::@8 init_
   (word) sqr::return#3 ← (word) sqr::return#1
   to:init_dist_screen::@21
 init_dist_screen::@21: scope:[init_dist_screen]  from init_dist_screen::@10
-  (byte*) heap_head#65 ← phi( init_dist_screen::@10/(byte*) heap_head#71 )
+  (byte*) heap_head#66 ← phi( init_dist_screen::@10/(byte*) heap_head#72 )
   (byte) init_dist_screen::y#8 ← phi( init_dist_screen::@10/(byte) init_dist_screen::y#11 )
   (byte) init_dist_screen::xb#3 ← phi( init_dist_screen::@10/(byte) init_dist_screen::xb#4 )
   (byte*) init_dist_screen::screen_bottomline#5 ← phi( init_dist_screen::@10/(byte*) init_dist_screen::screen_bottomline#7 )
   (byte) init_dist_screen::x#5 ← phi( init_dist_screen::@10/(byte) init_dist_screen::x#6 )
   (byte*) init_dist_screen::screen_topline#5 ← phi( init_dist_screen::@10/(byte*) init_dist_screen::screen_topline#7 )
-  (byte) NUM_SQUARES#13 ← phi( init_dist_screen::@10/(byte) NUM_SQUARES#22 )
+  (byte) NUM_SQUARES#15 ← phi( init_dist_screen::@10/(byte) NUM_SQUARES#24 )
   (word*) SQUARES#20 ← phi( init_dist_screen::@10/(word*) SQUARES#18 )
   (word) init_dist_screen::yds#1 ← phi( init_dist_screen::@10/(word) init_dist_screen::yds#2 )
   (word) sqr::return#6 ← phi( init_dist_screen::@10/(word) sqr::return#3 )
@@ -1245,9 +1256,9 @@ init_dist_screen::@21: scope:[init_dist_screen]  from init_dist_screen::@10
   to:init_dist_screen::@22
 init_dist_screen::@22: scope:[init_dist_screen]  from init_dist_screen::@21
   (word) init_dist_screen::yds#7 ← phi( init_dist_screen::@21/(word) init_dist_screen::yds#1 )
-  (word*) SQUARES#42 ← phi( init_dist_screen::@21/(word*) SQUARES#20 )
-  (byte*) heap_head#59 ← phi( init_dist_screen::@21/(byte*) heap_head#65 )
-  (byte) NUM_SQUARES#30 ← phi( init_dist_screen::@21/(byte) NUM_SQUARES#13 )
+  (word*) SQUARES#43 ← phi( init_dist_screen::@21/(word*) SQUARES#20 )
+  (byte*) heap_head#60 ← phi( init_dist_screen::@21/(byte*) heap_head#66 )
+  (byte) NUM_SQUARES#32 ← phi( init_dist_screen::@21/(byte) NUM_SQUARES#15 )
   (byte) init_dist_screen::y#6 ← phi( init_dist_screen::@21/(byte) init_dist_screen::y#8 )
   (byte) init_dist_screen::xb#2 ← phi( init_dist_screen::@21/(byte) init_dist_screen::xb#3 )
   (byte*) init_dist_screen::screen_bottomline#3 ← phi( init_dist_screen::@21/(byte*) init_dist_screen::screen_bottomline#5 )
@@ -1266,7 +1277,7 @@ init_dist_screen::@22: scope:[init_dist_screen]  from init_dist_screen::@21
 init_dist_screen::@return: scope:[init_dist_screen]  from init_dist_screen::@7
   (word*) SQUARES#15 ← phi( init_dist_screen::@7/(word*) SQUARES#24 )
   (byte*) heap_head#33 ← phi( init_dist_screen::@7/(byte*) heap_head#44 )
-  (byte) NUM_SQUARES#11 ← phi( init_dist_screen::@7/(byte) NUM_SQUARES#16 )
+  (byte) NUM_SQUARES#11 ← phi( init_dist_screen::@7/(byte) NUM_SQUARES#18 )
   (byte) NUM_SQUARES#4 ← (byte) NUM_SQUARES#11
   (byte*) heap_head#16 ← (byte*) heap_head#33
   (word*) SQUARES#6 ← (word*) SQUARES#15
@@ -1277,9 +1288,9 @@ init_dist_screen::@return: scope:[init_dist_screen]  from init_dist_screen::@7
   (word**) BUCKETS#26 ← phi( @31/(word**) BUCKETS#30 )
   (byte*) BUCKET_SIZES#19 ← phi( @31/(byte*) BUCKET_SIZES#23 )
   (byte*) SCREEN_ANGLE#5 ← phi( @31/(byte*) SCREEN_ANGLE#9 )
-  (word*) SQUARES#25 ← phi( @31/(word*) SQUARES#34 )
+  (word*) SQUARES#25 ← phi( @31/(word*) SQUARES#35 )
   (byte*) heap_head#45 ← phi( @31/(byte*) heap_head#9 )
-  (byte) NUM_SQUARES#17 ← phi( @31/(byte) NUM_SQUARES#23 )
+  (byte) NUM_SQUARES#19 ← phi( @31/(byte) NUM_SQUARES#25 )
   (byte*) SCREEN_DIST#3 ← phi( @31/(byte*) SCREEN_DIST#5 )
   call main 
   to:@32
@@ -1448,6 +1459,8 @@ SYMBOL TABLE SSA
 (byte) NUM_SQUARES#50
 (byte) NUM_SQUARES#51
 (byte) NUM_SQUARES#52
+(byte) NUM_SQUARES#53
+(byte) NUM_SQUARES#54
 (byte) NUM_SQUARES#6
 (byte) NUM_SQUARES#7
 (byte) NUM_SQUARES#8
@@ -1549,6 +1562,7 @@ SYMBOL TABLE SSA
 (word*) SQUARES#55
 (word*) SQUARES#56
 (word*) SQUARES#57
+(word*) SQUARES#58
 (word*) SQUARES#6
 (word*) SQUARES#7
 (word*) SQUARES#8
@@ -1901,6 +1915,7 @@ SYMBOL TABLE SSA
 (byte*) heap_head#8
 (byte*) heap_head#80
 (byte*) heap_head#81
+(byte*) heap_head#82
 (byte*) heap_head#9
 (void()) init_angle_screen((byte*) init_angle_screen::screen)
 (byte*~) init_angle_screen::$0
@@ -2181,25 +2196,28 @@ SYMBOL TABLE SSA
 (void()) init_squares()
 (byte~) init_squares::$0
 (void*~) init_squares::$1
-(number~) init_squares::$2
+(bool~) init_squares::$2
 (number~) init_squares::$3
 (number~) init_squares::$4
-(bool~) init_squares::$5
 (label) init_squares::@1
-(label) init_squares::@3
+(label) init_squares::@2
+(label) init_squares::@7
 (label) init_squares::@return
 (byte) init_squares::i
 (byte) init_squares::i#0
 (byte) init_squares::i#1
 (byte) init_squares::i#2
+(byte) init_squares::i#3
 (word) init_squares::sqr
 (word) init_squares::sqr#0
 (word) init_squares::sqr#1
 (word) init_squares::sqr#2
+(word) init_squares::sqr#3
 (word*) init_squares::squares
 (word*) init_squares::squares#0
 (word*) init_squares::squares#1
 (word*) init_squares::squares#2
+(word*) init_squares::squares#3
 (void()) main()
 (bool~) main::$10
 (byte*~) main::$11
@@ -2385,10 +2403,8 @@ Adding number conversion cast (unumber) 1 in (number~) bsearch16u::$17 ← (numb
 Adding number conversion cast (unumber) bsearch16u::$17 in (number~) bsearch16u::$17 ← (unumber)(number) 1 * (const byte) SIZEOF_WORD
 Adding number conversion cast (unumber) 1 in (number~) bsearch16u::$18 ← (number) 1 * (const byte) SIZEOF_WORD
 Adding number conversion cast (unumber) bsearch16u::$18 in (number~) bsearch16u::$18 ← (unumber)(number) 1 * (const byte) SIZEOF_WORD
-Adding number conversion cast (unumber) 1 in (number~) init_squares::$2 ← (byte) NUM_SQUARES#7 - (number) 1
-Adding number conversion cast (unumber) init_squares::$2 in (number~) init_squares::$2 ← (byte) NUM_SQUARES#7 - (unumber)(number) 1
-Adding number conversion cast (unumber) 2 in (number~) init_squares::$3 ← (byte) init_squares::i#2 * (number) 2
-Adding number conversion cast (unumber) init_squares::$3 in (number~) init_squares::$3 ← (byte) init_squares::i#2 * (unumber)(number) 2
+Adding number conversion cast (unumber) 2 in (number~) init_squares::$3 ← (byte) init_squares::i#3 * (number) 2
+Adding number conversion cast (unumber) init_squares::$3 in (number~) init_squares::$3 ← (byte) init_squares::i#3 * (unumber)(number) 2
 Adding number conversion cast (unumber) 1 in (number~) init_squares::$4 ← (unumber~) init_squares::$3 + (number) 1
 Adding number conversion cast (unumber) init_squares::$4 in (number~) init_squares::$4 ← (unumber~) init_squares::$3 + (unumber)(number) 1
 Adding number conversion cast (snumber) 0 in (bool~) atan2_16::$0 ← (signed word) atan2_16::y#1 >= (number) 0
@@ -2448,12 +2464,12 @@ Adding number conversion cast (unumber) init_dist_screen::$7 in (number~) init_d
 Adding number conversion cast (unumber) $18 in (number~) init_dist_screen::$4 ← (number) $18 - (byte) init_dist_screen::y2#2
 Adding number conversion cast (unumber) init_dist_screen::$4 in (number~) init_dist_screen::$4 ← (unumber)(number) $18 - (byte) init_dist_screen::y2#2
 Adding number conversion cast (unumber) init_dist_screen::$5 in (number~) init_dist_screen::$5 ← (unumber~) init_dist_screen::$4
-Adding number conversion cast (unumber) init_dist_screen::$8 in (byte*) heap_head#64 ← phi( init_dist_screen::@2/(byte*) heap_head#69 init_dist_screen::@3/(byte*) heap_head#70 )
-  (byte) NUM_SQUARES#37 ← phi( init_dist_screen::@2/(byte) NUM_SQUARES#42 init_dist_screen::@3/(byte) NUM_SQUARES#43 )
+Adding number conversion cast (unumber) init_dist_screen::$8 in (byte*) heap_head#65 ← phi( init_dist_screen::@2/(byte*) heap_head#70 init_dist_screen::@3/(byte*) heap_head#71 )
+  (byte) NUM_SQUARES#39 ← phi( init_dist_screen::@2/(byte) NUM_SQUARES#44 init_dist_screen::@3/(byte) NUM_SQUARES#45 )
   (byte) init_dist_screen::y#7 ← phi( init_dist_screen::@2/(byte) init_dist_screen::y#9 init_dist_screen::@3/(byte) init_dist_screen::y#10 )
   (byte*) init_dist_screen::screen_bottomline#8 ← phi( init_dist_screen::@2/(byte*) init_dist_screen::screen_bottomline#11 init_dist_screen::@3/(byte*) init_dist_screen::screen_bottomline#12 )
   (byte*) init_dist_screen::screen_topline#8 ← phi( init_dist_screen::@2/(byte*) init_dist_screen::screen_topline#11 init_dist_screen::@3/(byte*) init_dist_screen::screen_topline#12 )
-  (word*) SQUARES#19 ← phi( init_dist_screen::@2/(word*) SQUARES#29 init_dist_screen::@3/(word*) SQUARES#30 )
+  (word*) SQUARES#19 ← phi( init_dist_screen::@2/(word*) SQUARES#30 init_dist_screen::@3/(word*) SQUARES#31 )
   (number~) init_dist_screen::$8 ← phi( init_dist_screen::@2/(unumber~) init_dist_screen::$7 init_dist_screen::@3/(unumber~) init_dist_screen::$5 )
 Adding number conversion cast (unumber) $13 in (bool~) init_dist_screen::$10 ← (byte) init_dist_screen::x#2 <= (number) $13
 Adding number conversion cast (unumber) 2 in (number~) init_dist_screen::$11 ← (byte) init_dist_screen::x#3 * (number) 2
@@ -2467,15 +2483,15 @@ Adding number conversion cast (unumber) init_dist_screen::$16 in (number~) init_
 Adding number conversion cast (unumber) $27 in (number~) init_dist_screen::$13 ← (number) $27 - (byte) init_dist_screen::x2#2
 Adding number conversion cast (unumber) init_dist_screen::$13 in (number~) init_dist_screen::$13 ← (unumber)(number) $27 - (byte) init_dist_screen::x2#2
 Adding number conversion cast (unumber) init_dist_screen::$14 in (number~) init_dist_screen::$14 ← (unumber~) init_dist_screen::$13
-Adding number conversion cast (unumber) init_dist_screen::$17 in (byte*) heap_head#71 ← phi( init_dist_screen::@8/(byte*) heap_head#76 init_dist_screen::@9/(byte*) heap_head#77 )
+Adding number conversion cast (unumber) init_dist_screen::$17 in (byte*) heap_head#72 ← phi( init_dist_screen::@8/(byte*) heap_head#77 init_dist_screen::@9/(byte*) heap_head#78 )
   (byte) init_dist_screen::y#11 ← phi( init_dist_screen::@8/(byte) init_dist_screen::y#12 init_dist_screen::@9/(byte) init_dist_screen::y#13 )
   (byte) init_dist_screen::xb#4 ← phi( init_dist_screen::@8/(byte) init_dist_screen::xb#5 init_dist_screen::@9/(byte) init_dist_screen::xb#6 )
   (byte*) init_dist_screen::screen_bottomline#7 ← phi( init_dist_screen::@8/(byte*) init_dist_screen::screen_bottomline#9 init_dist_screen::@9/(byte*) init_dist_screen::screen_bottomline#10 )
   (byte) init_dist_screen::x#6 ← phi( init_dist_screen::@8/(byte) init_dist_screen::x#7 init_dist_screen::@9/(byte) init_dist_screen::x#8 )
   (byte*) init_dist_screen::screen_topline#7 ← phi( init_dist_screen::@8/(byte*) init_dist_screen::screen_topline#9 init_dist_screen::@9/(byte*) init_dist_screen::screen_topline#10 )
-  (byte) NUM_SQUARES#22 ← phi( init_dist_screen::@8/(byte) NUM_SQUARES#31 init_dist_screen::@9/(byte) NUM_SQUARES#32 )
+  (byte) NUM_SQUARES#24 ← phi( init_dist_screen::@8/(byte) NUM_SQUARES#33 init_dist_screen::@9/(byte) NUM_SQUARES#34 )
   (word) init_dist_screen::yds#2 ← phi( init_dist_screen::@8/(word) init_dist_screen::yds#3 init_dist_screen::@9/(word) init_dist_screen::yds#4 )
-  (word*) SQUARES#18 ← phi( init_dist_screen::@8/(word*) SQUARES#32 init_dist_screen::@9/(word*) SQUARES#33 )
+  (word*) SQUARES#18 ← phi( init_dist_screen::@8/(word*) SQUARES#33 init_dist_screen::@9/(word*) SQUARES#34 )
   (number~) init_dist_screen::$17 ← phi( init_dist_screen::@8/(unumber~) init_dist_screen::$16 init_dist_screen::@9/(unumber~) init_dist_screen::$14 )
 Successful SSA optimization PassNAddNumberTypeConversions
 Inlining cast (void*) malloc::return#0 ← (void*)(byte*) malloc::mem#0
@@ -2510,7 +2526,6 @@ Simplifying constant integer cast 0
 Simplifying constant integer cast 1
 Simplifying constant integer cast 1
 Simplifying constant integer cast 1
-Simplifying constant integer cast 1
 Simplifying constant integer cast 2
 Simplifying constant integer cast 1
 Simplifying constant integer cast 0
@@ -2571,7 +2586,6 @@ Finalized signed number type (signed byte) 0
 Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) 1
-Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) 2
 Finalized unsigned number type (byte) 1
 Finalized signed number type (signed byte) 0
@@ -2625,8 +2639,7 @@ Finalized unsigned number type (byte) $27
 Successful SSA optimization PassNFinalizeNumberTypeConversions
 Inferred type updated to byte in (unumber~) bsearch16u::$17 ← (byte) 1 * (const byte) SIZEOF_WORD
 Inferred type updated to byte in (unumber~) bsearch16u::$18 ← (byte) 1 * (const byte) SIZEOF_WORD
-Inferred type updated to byte in (unumber~) init_squares::$2 ← (byte) NUM_SQUARES#7 - (byte) 1
-Inferred type updated to byte in (unumber~) init_squares::$3 ← (byte) init_squares::i#2 * (byte) 2
+Inferred type updated to byte in (unumber~) init_squares::$3 ← (byte) init_squares::i#3 * (byte) 2
 Inferred type updated to byte in (unumber~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
 Inferred type updated to word in (unumber~) atan2_16::$12 ← (word) $8000 - (word) atan2_16::angle#9
 Inferred type updated to byte in (unumber~) init_angle_screen::$3 ← (byte) init_angle_screen::x#3 * (byte) 2
@@ -2672,13 +2685,17 @@ Alias (word*) bsearch16u::return#1 = (word*) bsearch16u::return#4
 Alias (word*) bsearch16u::items#0 = (word*~) bsearch16u::$15 
 Alias (word*~) bsearch16u::$2 = (word*~) bsearch16u::$1 
 Alias (word*) bsearch16u::return#2 = (word*~) bsearch16u::$4 
-Alias (byte*) heap_head#0 = (byte*) heap_head#46 (byte*) heap_head#35 
+Alias (byte*) heap_head#0 = (byte*) heap_head#47 (byte*) heap_head#35 
 Alias (word) malloc::size#0 = (byte~) init_squares::$0 
 Alias (void*) malloc::return#10 = (void*) malloc::return#2 
-Alias (byte) NUM_SQUARES#6 = (byte) NUM_SQUARES#7 
+Alias (byte) NUM_SQUARES#14 = (byte) NUM_SQUARES#6 
 Alias (byte*) heap_head#20 = (byte*) heap_head#3 
-Alias (byte*) heap_head#21 = (byte*) heap_head#38 (byte*) heap_head#4 
-Alias (word*) SQUARES#17 = (word*) SQUARES#8 (word*) SQUARES#2 
+Alias (word) init_squares::sqr#2 = (word) init_squares::sqr#3 
+Alias (word*) init_squares::squares#2 = (word*) init_squares::squares#3 
+Alias (byte) init_squares::i#2 = (byte) init_squares::i#3 
+Alias (byte) NUM_SQUARES#13 = (byte) NUM_SQUARES#7 
+Alias (byte*) heap_head#21 = (byte*) heap_head#46 (byte*) heap_head#38 (byte*) heap_head#4 
+Alias (word*) SQUARES#17 = (word*) SQUARES#26 (word*) SQUARES#8 (word*) SQUARES#2 
 Alias (word) sqr::return#0 = (word) sqr::return#4 (word) sqr::return#1 
 Alias (word*) bsearch16u::return#3 = (word*) bsearch16u::return#5 
 Alias (word*) SQUARES#10 = (word*) SQUARES#11 
@@ -2721,8 +2738,8 @@ Alias (word) atan2_16::angle#4 = (word~) atan2_16::$12
 Alias (word) atan2_16::return#0 = (word) atan2_16::angle#10 (word) atan2_16::return#3 (word) atan2_16::return#1 
 Alias (word) atan2_16::angle#11 = (word) atan2_16::angle#15 
 Alias (word) atan2_16::angle#5 = (word~) atan2_16::$15 
-Alias (byte) NUM_SQUARES#0 = (byte) NUM_SQUARES#48 (byte) NUM_SQUARES#44 (byte) NUM_SQUARES#39 (byte) NUM_SQUARES#33 (byte) NUM_SQUARES#24 (byte) NUM_SQUARES#23 (byte) NUM_SQUARES#17 
-Alias (word*) SQUARES#0 = (word*) SQUARES#54 (word*) SQUARES#51 (word*) SQUARES#48 (word*) SQUARES#44 (word*) SQUARES#35 (word*) SQUARES#34 (word*) SQUARES#25 
+Alias (byte) NUM_SQUARES#0 = (byte) NUM_SQUARES#50 (byte) NUM_SQUARES#46 (byte) NUM_SQUARES#41 (byte) NUM_SQUARES#35 (byte) NUM_SQUARES#26 (byte) NUM_SQUARES#25 (byte) NUM_SQUARES#19 
+Alias (word*) SQUARES#0 = (word*) SQUARES#55 (word*) SQUARES#52 (word*) SQUARES#49 (word*) SQUARES#45 (word*) SQUARES#36 (word*) SQUARES#35 (word*) SQUARES#25 
 Alias (void*) malloc::return#11 = (void*) malloc::return#3 
 Alias (byte*) heap_head#22 = (byte*) heap_head#5 
 Alias (void*) malloc::return#12 = (void*) malloc::return#4 
@@ -2742,16 +2759,16 @@ Alias (byte*) SCREEN_DIST#1 = (byte*) SCREEN_DIST#4 (byte*) SCREEN_DIST#2
 Alias (byte*) BUCKET_SIZES#11 = (byte*) BUCKET_SIZES#12 (byte*) BUCKET_SIZES#16 (byte*) BUCKET_SIZES#15 
 Alias (word**) BUCKETS#12 = (word**) BUCKETS#19 (word**) BUCKETS#22 (word**) BUCKETS#15 
 Alias (byte*) BUCKET_IDX#12 = (byte*) BUCKET_IDX#13 (byte*) BUCKET_IDX#14 
-Alias (byte) NUM_SQUARES#1 = (byte) NUM_SQUARES#9 (byte) NUM_SQUARES#34 (byte) NUM_SQUARES#27 
+Alias (byte) NUM_SQUARES#1 = (byte) NUM_SQUARES#9 (byte) NUM_SQUARES#36 (byte) NUM_SQUARES#29 
 Alias (byte*) heap_head#10 = (byte*) heap_head#27 (byte*) heap_head#40 
-Alias (word*) SQUARES#12 = (word*) SQUARES#3 (word*) SQUARES#45 (word*) SQUARES#38 
+Alias (word*) SQUARES#12 = (word*) SQUARES#3 (word*) SQUARES#46 (word*) SQUARES#39 
 Alias (byte*) heap_head#11 = (byte*) heap_head#28 
 Alias (byte) main::bucket_idx#11 = (byte) main::bucket_idx#2 (byte) main::bucket_idx#4 
 Alias (word**) BUCKETS#1 = (word**) BUCKETS#4 (word**) BUCKETS#24 
 Alias (byte*) BUCKET_SIZES#1 = (byte*) BUCKET_SIZES#5 (byte*) BUCKET_SIZES#22 
-Alias (byte) NUM_SQUARES#36 = (byte) NUM_SQUARES#40 (byte) NUM_SQUARES#46 
-Alias (byte*) heap_head#61 = (byte*) heap_head#66 (byte*) heap_head#73 
-Alias (word*) SQUARES#47 = (word*) SQUARES#49 (word*) SQUARES#53 
+Alias (byte) NUM_SQUARES#38 = (byte) NUM_SQUARES#42 (byte) NUM_SQUARES#48 
+Alias (byte*) heap_head#62 = (byte*) heap_head#67 (byte*) heap_head#74 
+Alias (word*) SQUARES#48 = (word*) SQUARES#50 (word*) SQUARES#54 
 Alias (byte*) SCREEN_ANGLE#11 = (byte*) SCREEN_ANGLE#14 (byte*) SCREEN_ANGLE#8 
 Alias (byte) main::bucket_size#0 = (byte) main::bucket_size#3 
 Alias (word*) main::bucket#0 = (word*) main::bucket#4 
@@ -2762,9 +2779,9 @@ Alias (byte) main::min_angle#2 = (byte) main::min_angle#3 (byte) main::min_angle
 Alias (byte) main::bucket_size#1 = (byte) main::bucket_size#6 (byte) main::bucket_size#4 (byte) main::bucket_size#5 
 Alias (word) main::min_offset#2 = (word) main::min_offset#7 (word) main::min_offset#4 (word) main::min_offset#6 (word) main::min_offset#3 
 Alias (byte) main::bucket_idx#12 = (byte) main::bucket_idx#14 (byte) main::bucket_idx#7 (byte) main::bucket_idx#5 (byte) main::bucket_idx#13 (byte) main::bucket_idx#8 
-Alias (byte) NUM_SQUARES#25 = (byte) NUM_SQUARES#51 (byte) NUM_SQUARES#41 (byte) NUM_SQUARES#35 (byte) NUM_SQUARES#49 (byte) NUM_SQUARES#50 
-Alias (byte*) heap_head#53 = (byte*) heap_head#80 (byte*) heap_head#67 (byte*) heap_head#60 (byte*) heap_head#78 (byte*) heap_head#79 
-Alias (word*) SQUARES#36 = (word*) SQUARES#57 (word*) SQUARES#50 (word*) SQUARES#46 (word*) SQUARES#55 (word*) SQUARES#56 
+Alias (byte) NUM_SQUARES#27 = (byte) NUM_SQUARES#53 (byte) NUM_SQUARES#43 (byte) NUM_SQUARES#37 (byte) NUM_SQUARES#51 (byte) NUM_SQUARES#52 
+Alias (byte*) heap_head#54 = (byte*) heap_head#81 (byte*) heap_head#68 (byte*) heap_head#61 (byte*) heap_head#79 (byte*) heap_head#80 
+Alias (word*) SQUARES#37 = (word*) SQUARES#58 (word*) SQUARES#51 (word*) SQUARES#47 (word*) SQUARES#56 (word*) SQUARES#57 
 Alias (word**) BUCKETS#10 = (word**) BUCKETS#29 (word**) BUCKETS#20 (word**) BUCKETS#16 (word**) BUCKETS#27 (word**) BUCKETS#28 
 Alias (byte*) BUCKET_SIZES#13 = (byte*) BUCKET_SIZES#27 (byte*) BUCKET_SIZES#20 (byte*) BUCKET_SIZES#17 (byte*) BUCKET_SIZES#25 (byte*) BUCKET_SIZES#26 
 Alias (byte*) main::fill#0 = (byte*~) main::$8 
@@ -2774,20 +2791,20 @@ Alias (byte*) main::fill1#0 = (byte*~) main::$16
 Alias (byte) main::bucket_idx#1 = (byte) main::bucket_idx#9 
 Alias (word**) BUCKETS#11 = (word**) BUCKETS#17 
 Alias (byte*) BUCKET_SIZES#14 = (byte*) BUCKET_SIZES#18 
-Alias (byte) NUM_SQUARES#19 = (byte) NUM_SQUARES#26 (byte) NUM_SQUARES#28 
-Alias (byte*) heap_head#48 = (byte*) heap_head#54 (byte*) heap_head#55 
-Alias (word*) SQUARES#27 = (word*) SQUARES#37 (word*) SQUARES#39 
+Alias (byte) NUM_SQUARES#21 = (byte) NUM_SQUARES#28 (byte) NUM_SQUARES#30 
+Alias (byte*) heap_head#49 = (byte*) heap_head#55 (byte*) heap_head#56 
+Alias (word*) SQUARES#28 = (word*) SQUARES#38 (word*) SQUARES#40 
 Alias (byte*) SCREEN_ANGLE#17 = (byte*) SCREEN_ANGLE#21 
-Alias (byte) NUM_SQUARES#10 = (byte) NUM_SQUARES#20 (byte) NUM_SQUARES#15 (byte) NUM_SQUARES#2 
-Alias (byte*) heap_head#12 = (byte*) heap_head#49 (byte*) heap_head#41 (byte*) heap_head#29 
-Alias (word*) SQUARES#13 = (word*) SQUARES#28 (word*) SQUARES#22 (word*) SQUARES#4 
+Alias (byte) NUM_SQUARES#10 = (byte) NUM_SQUARES#22 (byte) NUM_SQUARES#17 (byte) NUM_SQUARES#2 
+Alias (byte*) heap_head#12 = (byte*) heap_head#50 (byte*) heap_head#41 (byte*) heap_head#29 
+Alias (word*) SQUARES#13 = (word*) SQUARES#29 (word*) SQUARES#22 (word*) SQUARES#4 
 Alias (byte*) init_buckets::screen#1 = (byte*) init_buckets::screen#4 (byte*) init_buckets::dist#0 
 Alias (byte*) BUCKET_SIZES#2 = (byte*) BUCKET_SIZES#7 
-Alias (byte*) heap_head#62 = (byte*) heap_head#68 
+Alias (byte*) heap_head#63 = (byte*) heap_head#69 
 Alias (word**) BUCKETS#18 = (word**) BUCKETS#21 
 Alias (byte*) BUCKET_IDX#10 = (byte*) BUCKET_IDX#9 
 Alias (byte*) BUCKET_SIZES#3 = (byte*) BUCKET_SIZES#9 
-Alias (byte*) heap_head#50 = (byte*) heap_head#56 
+Alias (byte*) heap_head#51 = (byte*) heap_head#57 
 Alias (word**) BUCKETS#13 = (word**) BUCKETS#8 
 Alias (byte*) BUCKET_IDX#7 = (byte*) BUCKET_IDX#8 
 Alias (byte*) init_buckets::screen#10 = (byte*) init_buckets::screen#11 
@@ -2798,11 +2815,11 @@ Alias (word**) BUCKETS#14 = (word**) BUCKETS#2 (word**) BUCKETS#5
 Alias (byte*) BUCKET_SIZES#4 = (byte*) BUCKET_SIZES#8 
 Alias (byte*) BUCKET_IDX#3 = (byte*) BUCKET_IDX#5 (byte*) BUCKET_IDX#6 
 Alias (byte*) init_buckets::screen#7 = (byte*) init_buckets::screen#8 (byte*) init_buckets::screen#9 
-Alias (byte*) heap_head#13 = (byte*) heap_head#30 (byte*) heap_head#63 
+Alias (byte*) heap_head#13 = (byte*) heap_head#30 (byte*) heap_head#64 
 Alias (byte*) init_buckets::screen#2 = (byte*) init_buckets::screen#5 (byte*) init_buckets::dist#2 
 Alias (word**) BUCKETS#6 = (word**) BUCKETS#9 
 Alias (byte*) BUCKET_IDX#1 = (byte*) BUCKET_IDX#4 
-Alias (byte*) heap_head#51 = (byte*) heap_head#57 
+Alias (byte*) heap_head#52 = (byte*) heap_head#58 
 Alias (byte*) heap_head#14 = (byte*) heap_head#31 (byte*) heap_head#42 
 Alias (byte*) init_angle_screen::screen_topline#0 = (byte*~) init_angle_screen::$0 
 Alias (byte*) init_angle_screen::screen_bottomline#0 = (byte*~) init_angle_screen::$1 
@@ -2819,17 +2836,17 @@ Alias (word) atan2_16::return#2 = (word) atan2_16::return#4
 Alias (word) init_angle_screen::angle_w#0 = (word~) init_angle_screen::$10 
 Alias (byte) init_angle_screen::ang_w#0 = (byte~) init_angle_screen::$12 
 Alias (byte*) init_dist_screen::screen#1 = (byte*) init_dist_screen::screen#2 (byte*) init_dist_screen::screen_topline#0 
-Alias (byte) NUM_SQUARES#3 = (byte) NUM_SQUARES#52 
+Alias (byte) NUM_SQUARES#3 = (byte) NUM_SQUARES#54 
 Alias (byte*) heap_head#15 = (byte*) heap_head#32 
 Alias (word*) SQUARES#14 = (word*) SQUARES#5 
 Alias (byte*) init_dist_screen::screen_bottomline#0 = (byte*~) init_dist_screen::$1 
 Alias (byte) init_dist_screen::y2#0 = (byte~) init_dist_screen::$2 (byte) init_dist_screen::y2#1 (byte) init_dist_screen::y2#2 
-Alias (word*) SQUARES#29 = (word*) SQUARES#40 (word*) SQUARES#30 
+Alias (word*) SQUARES#30 = (word*) SQUARES#41 (word*) SQUARES#31 
 Alias (byte*) init_dist_screen::screen_topline#11 = (byte*) init_dist_screen::screen_topline#14 (byte*) init_dist_screen::screen_topline#12 
 Alias (byte*) init_dist_screen::screen_bottomline#11 = (byte*) init_dist_screen::screen_bottomline#14 (byte*) init_dist_screen::screen_bottomline#12 
 Alias (byte) init_dist_screen::y#10 = (byte) init_dist_screen::y#9 (byte) init_dist_screen::y#2 
-Alias (byte) NUM_SQUARES#42 = (byte) NUM_SQUARES#47 (byte) NUM_SQUARES#43 
-Alias (byte*) heap_head#69 = (byte*) heap_head#75 (byte*) heap_head#70 
+Alias (byte) NUM_SQUARES#44 = (byte) NUM_SQUARES#49 (byte) NUM_SQUARES#45 
+Alias (byte*) heap_head#70 = (byte*) heap_head#76 (byte*) heap_head#71 
 Alias (byte~) init_dist_screen::$7 = (byte~) init_dist_screen::$6 
 Alias (byte~) init_dist_screen::$5 = (byte~) init_dist_screen::$4 
 Alias (byte) init_dist_screen::yd#0 = (byte~) init_dist_screen::$8 
@@ -2837,33 +2854,33 @@ Alias (word) sqr::return#2 = (word) sqr::return#5
 Alias (byte*) init_dist_screen::screen_topline#6 = (byte*) init_dist_screen::screen_topline#8 
 Alias (byte*) init_dist_screen::screen_bottomline#6 = (byte*) init_dist_screen::screen_bottomline#8 
 Alias (byte) init_dist_screen::y#5 = (byte) init_dist_screen::y#7 
-Alias (byte) NUM_SQUARES#29 = (byte) NUM_SQUARES#37 
-Alias (byte*) heap_head#58 = (byte*) heap_head#64 
-Alias (word*) SQUARES#19 = (word*) SQUARES#41 
+Alias (byte) NUM_SQUARES#31 = (byte) NUM_SQUARES#39 
+Alias (byte*) heap_head#59 = (byte*) heap_head#65 
+Alias (word*) SQUARES#19 = (word*) SQUARES#42 
 Alias (word) init_dist_screen::yds#0 = (word~) init_dist_screen::$9 
 Alias (byte) init_dist_screen::x#2 = (byte) init_dist_screen::x#3 (byte) init_dist_screen::x#7 (byte) init_dist_screen::x#8 
-Alias (word*) SQUARES#15 = (word*) SQUARES#43 (word*) SQUARES#31 (word*) SQUARES#24 (word*) SQUARES#32 (word*) SQUARES#33 (word*) SQUARES#6 
+Alias (word*) SQUARES#15 = (word*) SQUARES#44 (word*) SQUARES#32 (word*) SQUARES#24 (word*) SQUARES#33 (word*) SQUARES#34 (word*) SQUARES#6 
 Alias (word) init_dist_screen::yds#3 = (word) init_dist_screen::yds#5 (word) init_dist_screen::yds#6 (word) init_dist_screen::yds#4 
-Alias (byte) NUM_SQUARES#11 = (byte) NUM_SQUARES#38 (byte) NUM_SQUARES#21 (byte) NUM_SQUARES#16 (byte) NUM_SQUARES#31 (byte) NUM_SQUARES#32 (byte) NUM_SQUARES#4 
+Alias (byte) NUM_SQUARES#11 = (byte) NUM_SQUARES#40 (byte) NUM_SQUARES#23 (byte) NUM_SQUARES#18 (byte) NUM_SQUARES#33 (byte) NUM_SQUARES#34 (byte) NUM_SQUARES#4 
 Alias (byte*) init_dist_screen::screen_topline#10 = (byte*) init_dist_screen::screen_topline#13 (byte*) init_dist_screen::screen_topline#4 (byte*) init_dist_screen::screen_topline#2 (byte*) init_dist_screen::screen_topline#9 
 Alias (byte*) init_dist_screen::screen_bottomline#10 = (byte*) init_dist_screen::screen_bottomline#13 (byte*) init_dist_screen::screen_bottomline#4 (byte*) init_dist_screen::screen_bottomline#2 (byte*) init_dist_screen::screen_bottomline#9 
 Alias (byte) init_dist_screen::xb#5 = (byte) init_dist_screen::xb#7 (byte) init_dist_screen::xb#8 (byte) init_dist_screen::xb#6 
 Alias (byte) init_dist_screen::y#12 = (byte) init_dist_screen::y#14 (byte) init_dist_screen::y#4 (byte) init_dist_screen::y#3 (byte) init_dist_screen::y#13 
-Alias (byte*) heap_head#16 = (byte*) heap_head#81 (byte*) heap_head#52 (byte*) heap_head#44 (byte*) heap_head#76 (byte*) heap_head#77 (byte*) heap_head#33 
+Alias (byte*) heap_head#16 = (byte*) heap_head#82 (byte*) heap_head#53 (byte*) heap_head#44 (byte*) heap_head#77 (byte*) heap_head#78 (byte*) heap_head#33 
 Alias (byte) init_dist_screen::x2#0 = (byte~) init_dist_screen::$11 (byte) init_dist_screen::x2#1 (byte) init_dist_screen::x2#2 
 Alias (byte~) init_dist_screen::$16 = (byte~) init_dist_screen::$15 
 Alias (byte~) init_dist_screen::$14 = (byte~) init_dist_screen::$13 
 Alias (byte) init_dist_screen::xd#0 = (byte~) init_dist_screen::$17 
 Alias (word) sqr::return#3 = (word) sqr::return#6 
 Alias (word) init_dist_screen::yds#1 = (word) init_dist_screen::yds#2 (word) init_dist_screen::yds#7 
-Alias (word*) SQUARES#18 = (word*) SQUARES#20 (word*) SQUARES#42 
-Alias (byte) NUM_SQUARES#13 = (byte) NUM_SQUARES#22 (byte) NUM_SQUARES#30 
+Alias (word*) SQUARES#18 = (word*) SQUARES#20 (word*) SQUARES#43 
+Alias (byte) NUM_SQUARES#15 = (byte) NUM_SQUARES#24 (byte) NUM_SQUARES#32 
 Alias (byte*) init_dist_screen::screen_topline#3 = (byte*) init_dist_screen::screen_topline#5 (byte*) init_dist_screen::screen_topline#7 
 Alias (byte) init_dist_screen::x#4 = (byte) init_dist_screen::x#5 (byte) init_dist_screen::x#6 
 Alias (byte*) init_dist_screen::screen_bottomline#3 = (byte*) init_dist_screen::screen_bottomline#5 (byte*) init_dist_screen::screen_bottomline#7 
 Alias (byte) init_dist_screen::xb#2 = (byte) init_dist_screen::xb#3 (byte) init_dist_screen::xb#4 
 Alias (byte) init_dist_screen::y#11 = (byte) init_dist_screen::y#8 (byte) init_dist_screen::y#6 
-Alias (byte*) heap_head#59 = (byte*) heap_head#65 (byte*) heap_head#71 
+Alias (byte*) heap_head#60 = (byte*) heap_head#66 (byte*) heap_head#72 
 Alias (word) init_dist_screen::xds#0 = (word~) init_dist_screen::$18 
 Alias (word) init_dist_screen::ds#0 = (word~) init_dist_screen::$19 
 Alias (byte) sqrt::return#2 = (byte) sqrt::return#4 
@@ -2889,34 +2906,35 @@ Alias (byte) main::bucket_size#1 = (byte) main::bucket_size#2
 Alias (word*) main::bucket#1 = (word*) main::bucket#3 
 Alias (byte*) SCREEN_ANGLE#12 = (byte*) SCREEN_ANGLE#7 
 Alias (byte) main::bucket_idx#10 = (byte) main::bucket_idx#12 
-Alias (byte) NUM_SQUARES#25 = (byte) NUM_SQUARES#45 
-Alias (byte*) heap_head#53 = (byte*) heap_head#72 
-Alias (word*) SQUARES#36 = (word*) SQUARES#52 
+Alias (byte) NUM_SQUARES#27 = (byte) NUM_SQUARES#47 
+Alias (byte*) heap_head#54 = (byte*) heap_head#73 
+Alias (word*) SQUARES#37 = (word*) SQUARES#53 
 Alias (word**) BUCKETS#10 = (word**) BUCKETS#23 
 Alias (byte*) BUCKET_SIZES#13 = (byte*) BUCKET_SIZES#21 
-Alias (word*) SQUARES#19 = (word*) SQUARES#29 
+Alias (word*) SQUARES#19 = (word*) SQUARES#30 
 Alias (byte*) init_dist_screen::screen_topline#11 = (byte*) init_dist_screen::screen_topline#6 
 Alias (byte*) init_dist_screen::screen_bottomline#11 = (byte*) init_dist_screen::screen_bottomline#6 
 Alias (byte) init_dist_screen::y#10 = (byte) init_dist_screen::y#5 
-Alias (byte) NUM_SQUARES#29 = (byte) NUM_SQUARES#42 
-Alias (byte*) heap_head#58 = (byte*) heap_head#69 
+Alias (byte) NUM_SQUARES#31 = (byte) NUM_SQUARES#44 
+Alias (byte*) heap_head#59 = (byte*) heap_head#70 
 Alias (word*) SQUARES#15 = (word*) SQUARES#18 
 Alias (word) init_dist_screen::yds#1 = (word) init_dist_screen::yds#3 
-Alias (byte) NUM_SQUARES#11 = (byte) NUM_SQUARES#13 
+Alias (byte) NUM_SQUARES#11 = (byte) NUM_SQUARES#15 
 Alias (byte*) init_dist_screen::screen_topline#10 = (byte*) init_dist_screen::screen_topline#3 
 Alias (byte) init_dist_screen::x#2 = (byte) init_dist_screen::x#4 
 Alias (byte*) init_dist_screen::screen_bottomline#10 = (byte*) init_dist_screen::screen_bottomline#3 
 Alias (byte) init_dist_screen::xb#2 = (byte) init_dist_screen::xb#5 
 Alias (byte) init_dist_screen::y#11 = (byte) init_dist_screen::y#12 
-Alias (byte*) heap_head#16 = (byte*) heap_head#59 
+Alias (byte*) heap_head#16 = (byte*) heap_head#60 
 Successful SSA optimization Pass2AliasElimination
 Identical Phi Values (byte) bsearch16u::num#7 (byte) bsearch16u::num#2
 Identical Phi Values (word*) bsearch16u::items#7 (word*) bsearch16u::items#1
 Identical Phi Values (word) bsearch16u::key#4 (word) bsearch16u::key#0
 Identical Phi Values (word) bsearch16u::key#1 (word) bsearch16u::key#4
-Identical Phi Values (byte) NUM_SQUARES#6 (byte) NUM_SQUARES#3
+Identical Phi Values (byte) NUM_SQUARES#14 (byte) NUM_SQUARES#3
 Identical Phi Values (byte*) heap_head#37 (byte*) heap_head#43
 Identical Phi Values (byte*) heap_head#20 (byte*) heap_head#1
+Identical Phi Values (byte) NUM_SQUARES#13 (byte) NUM_SQUARES#14
 Identical Phi Values (byte*) heap_head#21 (byte*) heap_head#20
 Identical Phi Values (word*) SQUARES#17 (word*) SQUARES#1
 Identical Phi Values (word) sqrt::val#1 (word) sqrt::val#0
@@ -2936,7 +2954,7 @@ Identical Phi Values (byte*) heap_head#24 (byte*) heap_head#1
 Identical Phi Values (byte*) heap_head#25 (byte*) heap_head#1
 Identical Phi Values (byte*) heap_head#26 (byte*) heap_head#1
 Identical Phi Values (byte*) SCREEN_DIST#1 (byte*) SCREEN_DIST#0
-Identical Phi Values (byte) NUM_SQUARES#14 (byte) NUM_SQUARES#0
+Identical Phi Values (byte) NUM_SQUARES#16 (byte) NUM_SQUARES#0
 Identical Phi Values (byte*) heap_head#39 (byte*) heap_head#26
 Identical Phi Values (word*) SQUARES#21 (word*) SQUARES#0
 Identical Phi Values (byte*) SCREEN_ANGLE#1 (byte*) SCREEN_ANGLE#0
@@ -2950,31 +2968,31 @@ Identical Phi Values (byte*) heap_head#11 (byte*) heap_head#14
 Identical Phi Values (byte) main::bucket_idx#11 (byte) main::bucket_idx#6
 Identical Phi Values (word**) BUCKETS#1 (word**) BUCKETS#7
 Identical Phi Values (byte*) BUCKET_SIZES#1 (byte*) BUCKET_SIZES#10
-Identical Phi Values (byte) NUM_SQUARES#36 (byte) NUM_SQUARES#18
-Identical Phi Values (byte*) heap_head#61 (byte*) heap_head#47
-Identical Phi Values (word*) SQUARES#47 (word*) SQUARES#26
+Identical Phi Values (byte) NUM_SQUARES#38 (byte) NUM_SQUARES#20
+Identical Phi Values (byte*) heap_head#62 (byte*) heap_head#48
+Identical Phi Values (word*) SQUARES#48 (word*) SQUARES#27
 Identical Phi Values (byte*) SCREEN_ANGLE#11 (byte*) SCREEN_ANGLE#15
 Identical Phi Values (byte) main::bucket_size#1 (byte) main::bucket_size#0
 Identical Phi Values (word*) main::bucket#1 (word*) main::bucket#0
 Identical Phi Values (byte*) SCREEN_ANGLE#12 (byte*) SCREEN_ANGLE#11
 Identical Phi Values (byte) main::bucket_idx#10 (byte) main::bucket_idx#11
-Identical Phi Values (byte) NUM_SQUARES#25 (byte) NUM_SQUARES#36
-Identical Phi Values (byte*) heap_head#53 (byte*) heap_head#61
-Identical Phi Values (word*) SQUARES#36 (word*) SQUARES#47
+Identical Phi Values (byte) NUM_SQUARES#27 (byte) NUM_SQUARES#38
+Identical Phi Values (byte*) heap_head#54 (byte*) heap_head#62
+Identical Phi Values (word*) SQUARES#37 (word*) SQUARES#48
 Identical Phi Values (word**) BUCKETS#10 (word**) BUCKETS#1
 Identical Phi Values (byte*) BUCKET_SIZES#13 (byte*) BUCKET_SIZES#1
 Identical Phi Values (byte*) BUCKET_SIZES#6 (byte*) BUCKET_SIZES#11
 Identical Phi Values (byte*) init_buckets::screen#6 (byte*) init_buckets::screen#0
-Identical Phi Values (byte*) heap_head#74 (byte*) heap_head#10
+Identical Phi Values (byte*) heap_head#75 (byte*) heap_head#10
 Identical Phi Values (word**) BUCKETS#25 (word**) BUCKETS#12
 Identical Phi Values (byte*) BUCKET_IDX#11 (byte*) BUCKET_IDX#12
 Identical Phi Values (byte*) BUCKET_SIZES#2 (byte*) BUCKET_SIZES#6
 Identical Phi Values (byte*) init_buckets::screen#1 (byte*) init_buckets::screen#6
-Identical Phi Values (byte*) heap_head#62 (byte*) heap_head#74
+Identical Phi Values (byte*) heap_head#63 (byte*) heap_head#75
 Identical Phi Values (word**) BUCKETS#18 (word**) BUCKETS#25
 Identical Phi Values (byte*) BUCKET_IDX#10 (byte*) BUCKET_IDX#11
 Identical Phi Values (byte*) BUCKET_SIZES#3 (byte*) BUCKET_SIZES#2
-Identical Phi Values (byte*) heap_head#50 (byte*) heap_head#62
+Identical Phi Values (byte*) heap_head#51 (byte*) heap_head#63
 Identical Phi Values (word**) BUCKETS#13 (word**) BUCKETS#18
 Identical Phi Values (byte*) BUCKET_IDX#7 (byte*) BUCKET_IDX#10
 Identical Phi Values (byte*) init_buckets::screen#10 (byte*) init_buckets::screen#1
@@ -2986,11 +3004,11 @@ Identical Phi Values (byte*) heap_head#13 (byte*) heap_head#1
 Identical Phi Values (byte*) BUCKET_IDX#1 (byte*) BUCKET_IDX#3
 Identical Phi Values (byte*) init_buckets::screen#2 (byte*) init_buckets::screen#7
 Identical Phi Values (word**) BUCKETS#6 (word**) BUCKETS#14
-Identical Phi Values (byte*) heap_head#51 (byte*) heap_head#13
+Identical Phi Values (byte*) heap_head#52 (byte*) heap_head#13
 Identical Phi Values (word**) BUCKETS#3 (word**) BUCKETS#6
 Identical Phi Values (byte*) init_buckets::screen#3 (byte*) init_buckets::screen#2
 Identical Phi Values (byte*) BUCKET_IDX#2 (byte*) BUCKET_IDX#1
-Identical Phi Values (byte*) heap_head#14 (byte*) heap_head#51
+Identical Phi Values (byte*) heap_head#14 (byte*) heap_head#52
 Identical Phi Values (byte*) init_angle_screen::screen#1 (byte*) init_angle_screen::screen#0
 Identical Phi Values (byte) init_angle_screen::y#2 (byte) init_angle_screen::y#5
 Identical Phi Values (byte*) init_angle_screen::screen_topline#2 (byte*) init_angle_screen::screen_topline#6
@@ -3003,8 +3021,8 @@ Identical Phi Values (word*) SQUARES#14 (word*) SQUARES#17
 Identical Phi Values (byte*) init_dist_screen::screen_topline#10 (byte*) init_dist_screen::screen_topline#11
 Identical Phi Values (byte*) init_dist_screen::screen_bottomline#10 (byte*) init_dist_screen::screen_bottomline#11
 Identical Phi Values (byte) init_dist_screen::y#11 (byte) init_dist_screen::y#10
-Identical Phi Values (byte) NUM_SQUARES#11 (byte) NUM_SQUARES#29
-Identical Phi Values (byte*) heap_head#16 (byte*) heap_head#58
+Identical Phi Values (byte) NUM_SQUARES#11 (byte) NUM_SQUARES#31
+Identical Phi Values (byte*) heap_head#16 (byte*) heap_head#59
 Identical Phi Values (word*) SQUARES#15 (word*) SQUARES#19
 Identical Phi Values (word) init_dist_screen::yds#1 (word) init_dist_screen::yds#0
 Identical Phi Values (byte) NUM_SQUARES#12 (byte) NUM_SQUARES#10
@@ -3017,32 +3035,32 @@ Identical Phi Values (signed word) atan2_16::y#19 (signed word) atan2_16::y#0
 Identical Phi Values (signed word) atan2_16::x#4 (signed word) atan2_16::x#17
 Identical Phi Values (signed word) atan2_16::y#4 (signed word) atan2_16::y#19
 Identical Phi Values (byte) main::bucket_idx#3 (byte) main::bucket_idx#6
-Identical Phi Values (byte) NUM_SQUARES#19 (byte) NUM_SQUARES#18
-Identical Phi Values (byte*) heap_head#48 (byte*) heap_head#47
-Identical Phi Values (word*) SQUARES#27 (word*) SQUARES#26
+Identical Phi Values (byte) NUM_SQUARES#21 (byte) NUM_SQUARES#20
+Identical Phi Values (byte*) heap_head#49 (byte*) heap_head#48
+Identical Phi Values (word*) SQUARES#28 (word*) SQUARES#27
 Identical Phi Values (word**) BUCKETS#11 (word**) BUCKETS#7
 Identical Phi Values (byte*) BUCKET_SIZES#14 (byte*) BUCKET_SIZES#10
 Identical Phi Values (byte*) SCREEN_ANGLE#17 (byte*) SCREEN_ANGLE#15
 Identical Phi Values (word*) SQUARES#19 (word*) SQUARES#1
-Identical Phi Values (byte) NUM_SQUARES#29 (byte) NUM_SQUARES#3
-Identical Phi Values (byte*) heap_head#58 (byte*) heap_head#1
+Identical Phi Values (byte) NUM_SQUARES#31 (byte) NUM_SQUARES#3
+Identical Phi Values (byte*) heap_head#59 (byte*) heap_head#1
 Successful SSA optimization Pass2IdenticalPhiElimination
 Identical Phi Values (word**) BUCKETS#7 (word**) BUCKETS#0
 Identical Phi Values (byte*) BUCKET_SIZES#10 (byte*) BUCKET_SIZES#0
-Identical Phi Values (byte) NUM_SQUARES#18 (byte) NUM_SQUARES#3
-Identical Phi Values (byte*) heap_head#47 (byte*) heap_head#1
-Identical Phi Values (word*) SQUARES#26 (word*) SQUARES#1
+Identical Phi Values (byte) NUM_SQUARES#20 (byte) NUM_SQUARES#3
+Identical Phi Values (byte*) heap_head#48 (byte*) heap_head#1
+Identical Phi Values (word*) SQUARES#27 (word*) SQUARES#1
 Identical Phi Values (byte*) SCREEN_ANGLE#15 (byte*) SCREEN_ANGLE#0
-Identical Phi Values (byte) NUM_SQUARES#10 (byte) NUM_SQUARES#18
-Identical Phi Values (byte*) heap_head#12 (byte*) heap_head#47
-Identical Phi Values (word*) SQUARES#13 (word*) SQUARES#26
+Identical Phi Values (byte) NUM_SQUARES#10 (byte) NUM_SQUARES#20
+Identical Phi Values (byte*) heap_head#12 (byte*) heap_head#48
+Identical Phi Values (word*) SQUARES#13 (word*) SQUARES#27
 Identical Phi Values (byte*) heap_head#36 (byte*) heap_head#1
 Successful SSA optimization Pass2IdenticalPhiElimination
 Simple Condition (bool~) bsearch16u::$5 [13] if((byte) bsearch16u::num#3>(byte) 0) goto bsearch16u::@7
 Simple Condition (bool~) bsearch16u::$12 [25] if((signed word) bsearch16u::result#0!=(signed byte) 0) goto bsearch16u::@9
 Simple Condition (bool~) bsearch16u::$0 [28] if(*((word*) bsearch16u::items#2)<=(word) bsearch16u::key#0) goto bsearch16u::@1
 Simple Condition (bool~) bsearch16u::$14 [32] if((signed word) bsearch16u::result#0<=(signed byte) 0) goto bsearch16u::@10
-Simple Condition (bool~) init_squares::$5 [77] if((byte) init_squares::i#1!=rangelast(0,init_squares::$2)) goto init_squares::@1
+Simple Condition (bool~) init_squares::$2 [70] if((byte) init_squares::i#2<(byte) NUM_SQUARES#3) goto init_squares::@2
 Simple Condition (bool~) atan2_16::$0 [107] if((signed word) atan2_16::y#0>=(signed byte) 0) goto atan2_16::@1
 Simple Condition (bool~) atan2_16::$5 [116] if((signed word) atan2_16::x#0>=(signed byte) 0) goto atan2_16::@4
 Simple Condition (bool~) atan2_16::$17 [129] if((signed word) atan2_16::yi#3!=(signed byte) 0) goto atan2_16::@16
@@ -3187,21 +3205,9 @@ Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) $d
 Successful SSA optimization PassNFinalizeNumberTypeConversions
 Constant right-side identified [24] (word) malloc::size#0 ← (const byte) NUM_SQUARES#3 * (const byte) SIZEOF_WORD
-Constant right-side identified [30] (byte~) init_squares::$2 ← (const byte) NUM_SQUARES#3 - (byte) 1
 Successful SSA optimization Pass2ConstantRValueConsolidation
 Constant (const word) malloc::size#0 = NUM_SQUARES#3*SIZEOF_WORD
-Constant (const byte) init_squares::$2 = NUM_SQUARES#3-1
 Successful SSA optimization Pass2ConstantIdentification
-Resolved ranged next value [37] init_squares::i#1 ← ++ init_squares::i#2 to ++
-Resolved ranged comparison value [38] if(init_squares::i#1!=rangelast(0,init_squares::$2)) goto init_squares::@1 to (const byte) init_squares::$2+(number) 1
-Adding number conversion cast (unumber) init_squares::$2+1 in if((byte) init_squares::i#1!=(const byte) init_squares::$2+(number) 1) goto init_squares::@1
-Adding number conversion cast (unumber) 1 in if((byte) init_squares::i#1!=(unumber)(const byte) init_squares::$2+(number) 1) goto init_squares::@1
-Successful SSA optimization PassNAddNumberTypeConversions
-Simplifying constant integer cast (const byte) init_squares::$2+(unumber)(number) 1
-Simplifying constant integer cast 1
-Successful SSA optimization PassNCastSimplification
-Finalized unsigned number type (byte) 1
-Successful SSA optimization PassNFinalizeNumberTypeConversions
 Inlining Noop Cast [3] (void*) malloc::return#0 ← (void*)(byte*) malloc::mem#0 keeping malloc::mem#0
 Inlining Noop Cast [10] (signed word~) bsearch16u::$8 ← (signed word)(word) bsearch16u::key#0 keeping bsearch16u::key#0
 Inlining Noop Cast [11] (signed word~) bsearch16u::$9 ← (signed word)*((word*) bsearch16u::pivot#0) keeping *(bsearch16u::pivot#0)
@@ -3224,7 +3230,7 @@ Inlining Noop Cast [189] (signed word) init_angle_screen::xw#0 ← (signed word)
 Inlining Noop Cast [192] (signed word) init_angle_screen::yw#0 ← (signed word)(word~) init_angle_screen::$8 keeping init_angle_screen::yw#0
 Successful SSA optimization Pass2NopCastInlining
 Rewriting multiplication to use shift [8] (byte~) bsearch16u::$16 ← (byte~) bsearch16u::$6 * (const byte) SIZEOF_WORD
-Rewriting multiplication to use shift [32] (byte~) init_squares::$3 ← (byte) init_squares::i#2 * (byte) 2
+Rewriting multiplication to use shift [33] (byte~) init_squares::$3 ← (byte) init_squares::i#2 * (byte) 2
 Rewriting multiplication to use shift [39] (byte~) sqr::$0 ← (byte) sqr::val#2 * (const byte) SIZEOF_WORD
 Rewriting division to use shift [48] (word~) sqrt::$1 ← (word~) sqrt::$3 / (const byte) SIZEOF_WORD
 Rewriting division to use shift [60] (word) atan2_16::angle#1 ← (word) atan2_16::angle#6 / (byte) 2
@@ -3297,10 +3303,8 @@ Constant inlined bsearch16u::$17 = (byte) 1*(const byte) SIZEOF_WORD
 Constant inlined bsearch16u::$18 = (byte) 1*(const byte) SIZEOF_WORD
 Constant inlined init_squares::i#0 = (byte) 0
 Constant inlined heap_head#0 = (const byte*) HEAP_TOP
-Constant inlined init_squares::$2 = (const byte) NUM_SQUARES#3-(byte) 1
 Successful SSA optimization Pass2ConstantInlining
 Added new block during phi lifting bsearch16u::@18(between bsearch16u::@9 and bsearch16u::@10)
-Added new block during phi lifting init_squares::@4(between init_squares::@1 and init_squares::@1)
 Added new block during phi lifting atan2_16::@34(between atan2_16::@27 and atan2_16::@15)
 Added new block during phi lifting atan2_16::@35(between atan2_16::@15 and atan2_16::@17)
 Added new block during phi lifting atan2_16::@36(between atan2_16::@27 and atan2_16::@17)
@@ -3340,10 +3344,10 @@ Calls in [sqrt] to bsearch16u:288
 Calls in [init_squares] to malloc:328 
 
 Created 54 initial phi equivalence classes
-Coalesced [6] heap_head#82 ← heap_head#1
-Coalesced (already) [9] heap_head#83 ← heap_head#1
-Coalesced (already) [12] heap_head#84 ← heap_head#1
-Coalesced (already) [15] heap_head#85 ← heap_head#1
+Coalesced [6] heap_head#83 ← heap_head#1
+Coalesced (already) [9] heap_head#84 ← heap_head#1
+Coalesced (already) [12] heap_head#85 ← heap_head#1
+Coalesced (already) [15] heap_head#86 ← heap_head#1
 Coalesced (already) [44] main::bucket_idx#15 ← main::bucket_idx#6
 Coalesced [51] main::bucket_idx#16 ← main::bucket_idx#1
 Coalesced [59] main::min_offset#10 ← main::offset#0
@@ -3356,7 +3360,7 @@ Coalesced (already) [67] main::min_angle#7 ← main::min_angle#2
 Not coalescing [68] main::min_offset#11 ← main::min_offset#2
 Coalesced (already) [69] main::min_angle#9 ← main::min_angle#2
 Not coalescing [75] init_buckets::dist#6 ← init_buckets::screen#0
-Coalesced (already) [85] heap_head#86 ← heap_head#1
+Coalesced (already) [85] heap_head#87 ← heap_head#1
 Coalesced [86] malloc::size#8 ← malloc::size#6
 Not coalescing [99] init_buckets::dist#8 ← init_buckets::screen#0
 Coalesced [114] init_buckets::dist#9 ← init_buckets::dist#3
@@ -3430,11 +3434,11 @@ Coalesced [319] bsearch16u::num#9 ← bsearch16u::num#0
 Coalesced [320] bsearch16u::items#11 ← bsearch16u::items#8
 Coalesced [321] bsearch16u::num#11 ← bsearch16u::num#3
 Coalesced (already) [322] bsearch16u::items#13 ← bsearch16u::items#2
-Coalesced (already) [327] heap_head#87 ← heap_head#1
-Coalesced [331] init_squares::squares#4 ← init_squares::squares#0
-Coalesced [341] init_squares::sqr#3 ← init_squares::sqr#1
-Coalesced [342] init_squares::squares#3 ← init_squares::squares#1
-Coalesced [343] init_squares::i#3 ← init_squares::i#1
+Coalesced (already) [327] heap_head#88 ← heap_head#1
+Coalesced [331] init_squares::squares#5 ← init_squares::squares#0
+Coalesced [341] init_squares::i#4 ← init_squares::i#1
+Coalesced [342] init_squares::sqr#4 ← init_squares::sqr#1
+Coalesced [343] init_squares::squares#4 ← init_squares::squares#1
 Coalesced down to 45 phi equivalence classes
 Culled Empty Block (label) @9
 Culled Empty Block (label) @17
@@ -3459,7 +3463,6 @@ Culled Empty Block (label) atan2_16::@37
 Culled Empty Block (label) init_dist_screen::@23
 Culled Empty Block (label) bsearch16u::@1
 Culled Empty Block (label) bsearch16u::@18
-Culled Empty Block (label) init_squares::@4
 Renumbering block @22 to @1
 Renumbering block @26 to @2
 Renumbering block @27 to @3
@@ -3476,7 +3479,7 @@ Renumbering block bsearch16u::@9 to bsearch16u::@6
 Renumbering block bsearch16u::@10 to bsearch16u::@7
 Renumbering block bsearch16u::@13 to bsearch16u::@8
 Renumbering block bsearch16u::@15 to bsearch16u::@9
-Renumbering block init_squares::@3 to init_squares::@2
+Renumbering block init_squares::@7 to init_squares::@3
 Renumbering block sqrt::@2 to sqrt::@1
 Renumbering block atan2_16::@13 to atan2_16::@9
 Renumbering block atan2_16::@15 to atan2_16::@10
@@ -4018,26 +4021,28 @@ sqr::@return: scope:[sqr]  from sqr
 init_squares: scope:[init_squares]  from init_dist_screen
   [242] phi()
   [243] call malloc 
-  to:init_squares::@2
-init_squares::@2: scope:[init_squares]  from init_squares
+  to:init_squares::@3
+init_squares::@3: scope:[init_squares]  from init_squares
   [244] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0
   [245] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1
   to:init_squares::@1
-init_squares::@1: scope:[init_squares]  from init_squares::@1 init_squares::@2
-  [246] (byte) init_squares::i#2 ← phi( init_squares::@1/(byte) init_squares::i#1 init_squares::@2/(byte) 0 )
-  [246] (word*) init_squares::squares#2 ← phi( init_squares::@1/(word*) init_squares::squares#1 init_squares::@2/(word*) init_squares::squares#0 )
-  [246] (word) init_squares::sqr#2 ← phi( init_squares::@1/(word) init_squares::sqr#1 init_squares::@2/(word) 0 )
-  [247] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
-  [248] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
-  [249] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1
-  [250] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
-  [251] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4
-  [252] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2
-  [253] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1
+init_squares::@1: scope:[init_squares]  from init_squares::@2 init_squares::@3
+  [246] (word*) init_squares::squares#2 ← phi( init_squares::@2/(word*) init_squares::squares#1 init_squares::@3/(word*) init_squares::squares#0 )
+  [246] (word) init_squares::sqr#2 ← phi( init_squares::@2/(word) init_squares::sqr#1 init_squares::@3/(word) 0 )
+  [246] (byte) init_squares::i#2 ← phi( init_squares::@2/(byte) init_squares::i#1 init_squares::@3/(byte) 0 )
+  [247] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2
   to:init_squares::@return
 init_squares::@return: scope:[init_squares]  from init_squares::@1
-  [254] return 
+  [248] return 
   to:@return
+init_squares::@2: scope:[init_squares]  from init_squares::@1
+  [249] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
+  [250] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
+  [251] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1
+  [252] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
+  [253] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4
+  [254] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2
+  to:init_squares::@1
 
 null depth in calling loop Loop head: init_buckets::@4 tails: init_buckets::@8 blocks: init_buckets::@8 init_buckets::@4  in scope malloc
 
@@ -4254,15 +4259,15 @@ VARIABLE REGISTER WEIGHTS
 (byte~) init_squares::$3 22.0
 (byte~) init_squares::$4 22.0
 (byte) init_squares::i
-(byte) init_squares::i#1 16.5
-(byte) init_squares::i#2 5.5
+(byte) init_squares::i#1 22.0
+(byte) init_squares::i#2 6.285714285714286
 (word) init_squares::sqr
-(word) init_squares::sqr#1 7.333333333333333
-(word) init_squares::sqr#2 6.6000000000000005
+(word) init_squares::sqr#1 11.0
+(word) init_squares::sqr#2 5.5
 (word*) init_squares::squares
 (word*) init_squares::squares#0 4.0
-(word*) init_squares::squares#1 3.6666666666666665
-(word*) init_squares::squares#2 17.5
+(word*) init_squares::squares#1 4.4
+(word*) init_squares::squares#2 11.666666666666666
 (void()) main()
 (byte~) main::$23 22.0
 (byte~) main::$24 202.0
@@ -4361,9 +4366,9 @@ Initial phi equivalence classes
 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 ]
 [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ]
 [ sqr::val#2 sqr::val#1 sqr::val#0 ]
+[ init_squares::i#2 init_squares::i#1 ]
 [ init_squares::sqr#2 init_squares::sqr#1 ]
 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ]
-[ init_squares::i#2 init_squares::i#1 ]
 Added variable SCREEN_DIST#0 to live range equivalence class [ SCREEN_DIST#0 ]
 Added variable SCREEN_ANGLE#0 to live range equivalence class [ SCREEN_ANGLE#0 ]
 Added variable BUCKET_SIZES#0 to live range equivalence class [ BUCKET_SIZES#0 ]
@@ -4469,9 +4474,9 @@ Complete equivalence classes
 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 ]
 [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ]
 [ sqr::val#2 sqr::val#1 sqr::val#0 ]
+[ init_squares::i#2 init_squares::i#1 ]
 [ init_squares::sqr#2 init_squares::sqr#1 ]
 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ]
-[ init_squares::i#2 init_squares::i#1 ]
 [ SCREEN_DIST#0 ]
 [ SCREEN_ANGLE#0 ]
 [ BUCKET_SIZES#0 ]
@@ -4576,9 +4581,9 @@ Allocated zp[1]:54 [ init_dist_screen::xd#0 init_dist_screen::$16 init_dist_scre
 Allocated zp[2]:55 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 ]
 Allocated zp[1]:57 [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ]
 Allocated zp[1]:58 [ sqr::val#2 sqr::val#1 sqr::val#0 ]
-Allocated zp[2]:59 [ init_squares::sqr#2 init_squares::sqr#1 ]
-Allocated zp[2]:61 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ]
-Allocated zp[1]:63 [ init_squares::i#2 init_squares::i#1 ]
+Allocated zp[1]:59 [ init_squares::i#2 init_squares::i#1 ]
+Allocated zp[2]:60 [ init_squares::sqr#2 init_squares::sqr#1 ]
+Allocated zp[2]:62 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ]
 Allocated zp[2]:64 [ SCREEN_DIST#0 ]
 Allocated zp[2]:66 [ SCREEN_ANGLE#0 ]
 Allocated zp[2]:68 [ BUCKET_SIZES#0 ]
@@ -6415,9 +6420,9 @@ sqr: {
 init_squares: {
     .label __3 = $ac
     .label __4 = $ad
-    .label squares = $3d
-    .label sqr = $3b
-    .label i = $3f
+    .label squares = $3e
+    .label sqr = $3c
+    .label i = $3b
     // [243] call malloc 
     // [92] phi from init_squares to malloc [phi:init_squares->malloc]
   malloc_from_init_squares:
@@ -6428,9 +6433,9 @@ init_squares: {
     sta.z malloc.size+1
     // [92] phi (byte*) heap_head#18 = (byte*) heap_head#1 [phi:init_squares->malloc#1] -- register_copy 
     jsr malloc
-    jmp __b2
-    // init_squares::@2
-  __b2:
+    jmp __b3
+    // init_squares::@3
+  __b3:
     // [244] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0 -- pvoz1=pvoz2 
     lda.z malloc.mem
     sta.z SQUARES
@@ -6441,34 +6446,39 @@ init_squares: {
     sta.z squares
     lda.z SQUARES+1
     sta.z squares+1
-    // [246] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
-  __b1_from___b2:
-    // [246] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@2->init_squares::@1#0] -- vbuz1=vbuc1 
-    lda #0
-    sta.z i
-    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
-    // [246] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@2->init_squares::@1#2] -- vwuz1=vwuc1 
+    // [246] phi from init_squares::@3 to init_squares::@1 [phi:init_squares::@3->init_squares::@1]
+  __b1_from___b3:
+    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@3->init_squares::@1#0] -- register_copy 
+    // [246] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@3->init_squares::@1#1] -- vwuz1=vwuc1 
     lda #<0
     sta.z sqr
     lda #>0
     sta.z sqr+1
-    jmp __b1
-    // [246] phi from init_squares::@1 to init_squares::@1 [phi:init_squares::@1->init_squares::@1]
-  __b1_from___b1:
-    // [246] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@1->init_squares::@1#0] -- register_copy 
-    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@1->init_squares::@1#1] -- register_copy 
-    // [246] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@1->init_squares::@1#2] -- register_copy 
+    // [246] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@3->init_squares::@1#2] -- vbuz1=vbuc1 
+    lda #0
+    sta.z i
     jmp __b1
     // init_squares::@1
   __b1:
-    // [247] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
+    // [247] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2 -- vbuz1_lt_vbuc1_then_la1 
+    lda.z i
+    cmp #NUM_SQUARES
+    bcc __b2
+    jmp __breturn
+    // init_squares::@return
+  __breturn:
+    // [248] return 
+    rts
+    // init_squares::@2
+  __b2:
+    // [249] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
     ldy #0
     lda.z sqr
     sta (squares),y
     iny
     lda.z sqr+1
     sta (squares),y
-    // [248] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
+    // [250] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
     lda #SIZEOF_WORD
     clc
     adc.z squares
@@ -6476,15 +6486,15 @@ init_squares: {
     bcc !+
     inc.z squares+1
   !:
-    // [249] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuz1=vbuz2_rol_1 
+    // [251] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuz1=vbuz2_rol_1 
     lda.z i
     asl
     sta.z __3
-    // [250] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuz1=vbuz2_plus_1 
+    // [252] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuz1=vbuz2_plus_1 
     ldy.z __3
     iny
     sty.z __4
-    // [251] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuz2 
+    // [253] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuz2 
     lda.z __4
     clc
     adc.z sqr
@@ -6492,17 +6502,14 @@ init_squares: {
     bcc !+
     inc.z sqr+1
   !:
-    // [252] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuz1=_inc_vbuz1 
+    // [254] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuz1=_inc_vbuz1 
     inc.z i
-    // [253] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1 -- vbuz1_neq_vbuc1_then_la1 
-    lda #NUM_SQUARES-1+1
-    cmp.z i
-    bne __b1_from___b1
-    jmp __breturn
-    // init_squares::@return
-  __breturn:
-    // [254] return 
-    rts
+    // [246] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
+  __b1_from___b2:
+    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@2->init_squares::@1#0] -- register_copy 
+    // [246] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
+    // [246] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@2->init_squares::@1#2] -- register_copy 
+    jmp __b1
 }
   // File Data
 // Angles representing ATAN(0.5), ATAN(0.25), ATAN(0.125), ...
@@ -6675,12 +6682,12 @@ Statement [239] (byte~) sqr::$0 ← (byte) sqr::val#2 << (byte) 1 [ SQUARES#1 sq
 Statement [240] (word) sqr::return#0 ← *((word*)(void*) SQUARES#1 + (byte~) sqr::$0) [ sqr::return#0 SQUARES#1 ] ( main:13::init_dist_screen:17::sqr:179 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 heap_head#1 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 sqr::return#0 SQUARES#1 ] main:13::init_dist_screen:17::sqr:194 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 heap_head#1 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 sqr::return#0 SQUARES#1 ] ) always clobbers reg byte a reg byte y 
 Statement [244] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0 [ heap_head#1 SQUARES#1 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 ] ) always clobbers reg byte a 
 Statement [245] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1 [ heap_head#1 SQUARES#1 init_squares::squares#0 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::squares#0 ] ) always clobbers reg byte a 
-Statement [247] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ) always clobbers reg byte a reg byte y 
-Removing always clobbered register reg byte a as potential for zp[1]:63 [ init_squares::i#2 init_squares::i#1 ]
-Removing always clobbered register reg byte y as potential for zp[1]:63 [ init_squares::i#2 init_squares::i#1 ]
-Statement [248] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ) always clobbers reg byte a 
-Statement [249] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
-Statement [251] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [249] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ) always clobbers reg byte a reg byte y 
+Removing always clobbered register reg byte a as potential for zp[1]:59 [ init_squares::i#2 init_squares::i#1 ]
+Removing always clobbered register reg byte y as potential for zp[1]:59 [ init_squares::i#2 init_squares::i#1 ]
+Statement [250] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [251] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
+Statement [253] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
 Statement [3] (void*) SCREEN_DIST#0 ← (void*)(byte*) malloc::mem#0 [ SCREEN_DIST#0 heap_head#1 ] (  [ SCREEN_DIST#0 heap_head#1 ] ) always clobbers reg byte a 
 Statement [5] (void*) SCREEN_ANGLE#0 ← (void*)(byte*) malloc::mem#0 [ SCREEN_DIST#0 SCREEN_ANGLE#0 heap_head#1 ] (  [ SCREEN_DIST#0 SCREEN_ANGLE#0 heap_head#1 ] ) always clobbers reg byte a 
 Statement [7] (void*) BUCKET_SIZES#0 ← (void*)(byte*) malloc::mem#0 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 heap_head#1 ] (  [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 heap_head#1 ] ) always clobbers reg byte a 
@@ -6819,10 +6826,10 @@ Statement [239] (byte~) sqr::$0 ← (byte) sqr::val#2 << (byte) 1 [ SQUARES#1 sq
 Statement [240] (word) sqr::return#0 ← *((word*)(void*) SQUARES#1 + (byte~) sqr::$0) [ sqr::return#0 SQUARES#1 ] ( main:13::init_dist_screen:17::sqr:179 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 heap_head#1 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 sqr::return#0 SQUARES#1 ] main:13::init_dist_screen:17::sqr:194 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 heap_head#1 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 sqr::return#0 SQUARES#1 ] ) always clobbers reg byte a reg byte y 
 Statement [244] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0 [ heap_head#1 SQUARES#1 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 ] ) always clobbers reg byte a 
 Statement [245] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1 [ heap_head#1 SQUARES#1 init_squares::squares#0 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::squares#0 ] ) always clobbers reg byte a 
-Statement [247] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ) always clobbers reg byte a reg byte y 
-Statement [248] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ) always clobbers reg byte a 
-Statement [249] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
-Statement [251] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [249] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ) always clobbers reg byte a reg byte y 
+Statement [250] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [251] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
+Statement [253] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
 Statement [3] (void*) SCREEN_DIST#0 ← (void*)(byte*) malloc::mem#0 [ SCREEN_DIST#0 heap_head#1 ] (  [ SCREEN_DIST#0 heap_head#1 ] ) always clobbers reg byte a 
 Statement [5] (void*) SCREEN_ANGLE#0 ← (void*)(byte*) malloc::mem#0 [ SCREEN_DIST#0 SCREEN_ANGLE#0 heap_head#1 ] (  [ SCREEN_DIST#0 SCREEN_ANGLE#0 heap_head#1 ] ) always clobbers reg byte a 
 Statement [7] (void*) BUCKET_SIZES#0 ← (void*)(byte*) malloc::mem#0 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 heap_head#1 ] (  [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 heap_head#1 ] ) always clobbers reg byte a 
@@ -6960,10 +6967,10 @@ Statement [239] (byte~) sqr::$0 ← (byte) sqr::val#2 << (byte) 1 [ SQUARES#1 sq
 Statement [240] (word) sqr::return#0 ← *((word*)(void*) SQUARES#1 + (byte~) sqr::$0) [ sqr::return#0 SQUARES#1 ] ( main:13::init_dist_screen:17::sqr:179 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 heap_head#1 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 sqr::return#0 SQUARES#1 ] main:13::init_dist_screen:17::sqr:194 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 heap_head#1 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 sqr::return#0 SQUARES#1 ] ) always clobbers reg byte a reg byte y 
 Statement [244] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0 [ heap_head#1 SQUARES#1 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 ] ) always clobbers reg byte a 
 Statement [245] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1 [ heap_head#1 SQUARES#1 init_squares::squares#0 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::squares#0 ] ) always clobbers reg byte a 
-Statement [247] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ) always clobbers reg byte a reg byte y 
-Statement [248] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ) always clobbers reg byte a 
-Statement [249] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
-Statement [251] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [249] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ) always clobbers reg byte a reg byte y 
+Statement [250] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [251] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
+Statement [253] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:13::init_dist_screen:17::init_squares:171 [ SCREEN_DIST#0 SCREEN_ANGLE#0 BUCKET_SIZES#0 BUCKETS#0 BUCKET_IDX#0 init_dist_screen::screen#0 heap_head#1 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
 Potential registers zp[1]:2 [ main::bucket_idx#6 main::bucket_idx#1 ] : zp[1]:2 , reg byte x , 
 Potential registers zp[1]:3 [ main::i#2 main::i#1 ] : zp[1]:3 , reg byte x , 
 Potential registers zp[2]:4 [ main::min_offset#2 main::min_offset#8 ] : zp[2]:4 , 
@@ -7001,9 +7008,9 @@ Potential registers zp[1]:54 [ init_dist_screen::xd#0 init_dist_screen::$16 init
 Potential registers zp[2]:55 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 ] : zp[2]:55 , 
 Potential registers zp[1]:57 [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ] : zp[1]:57 , reg byte x , 
 Potential registers zp[1]:58 [ sqr::val#2 sqr::val#1 sqr::val#0 ] : zp[1]:58 , reg byte a , reg byte x , reg byte y , 
-Potential registers zp[2]:59 [ init_squares::sqr#2 init_squares::sqr#1 ] : zp[2]:59 , 
-Potential registers zp[2]:61 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] : zp[2]:61 , 
-Potential registers zp[1]:63 [ init_squares::i#2 init_squares::i#1 ] : zp[1]:63 , reg byte x , 
+Potential registers zp[1]:59 [ init_squares::i#2 init_squares::i#1 ] : zp[1]:59 , reg byte x , 
+Potential registers zp[2]:60 [ init_squares::sqr#2 init_squares::sqr#1 ] : zp[2]:60 , 
+Potential registers zp[2]:62 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] : zp[2]:62 , 
 Potential registers zp[2]:64 [ SCREEN_DIST#0 ] : zp[2]:64 , 
 Potential registers zp[2]:66 [ SCREEN_ANGLE#0 ] : zp[2]:66 , 
 Potential registers zp[2]:68 [ BUCKET_SIZES#0 ] : zp[2]:68 , 
@@ -7081,7 +7088,7 @@ Uplift Scope [init_dist_screen] 707: zp[1]:54 [ init_dist_screen::xd#0 init_dist
 Uplift Scope [sqr] 338: zp[1]:58 [ sqr::val#2 sqr::val#1 sqr::val#0 ] 202: zp[2]:140 [ sqr::return#3 ] 28.5: zp[2]:168 [ sqr::return#0 ] 22: zp[2]:135 [ sqr::return#2 ] 4: zp[1]:167 [ sqr::$0 ] 
 Uplift Scope [init_buckets] 34.33: zp[2]:10 [ init_buckets::dist#4 init_buckets::dist#6 init_buckets::dist#1 ] 33: zp[1]:9 [ init_buckets::i#2 init_buckets::i#1 ] 33: zp[1]:16 [ init_buckets::i3#2 init_buckets::i3#1 ] 23.83: zp[2]:12 [ init_buckets::i1#2 init_buckets::i1#1 ] 22: zp[2]:14 [ init_buckets::i2#2 init_buckets::i2#1 ] 22: zp[2]:89 [ init_buckets::$15 ] 22: zp[2]:93 [ init_buckets::$12 ] 22: zp[2]:95 [ init_buckets::$16 ] 22: zp[2]:98 [ init_buckets::$7 ] 22: zp[2]:100 [ init_buckets::$13 ] 22: zp[2]:102 [ init_buckets::$17 ] 22: zp[1]:108 [ init_buckets::$14 ] 18.5: zp[2]:19 [ init_buckets::i4#2 init_buckets::i4#1 ] 15.93: zp[2]:17 [ init_buckets::dist#5 init_buckets::dist#8 init_buckets::dist#3 ] 11: zp[2]:106 [ init_buckets::$8 ] 7.33: zp[2]:104 [ init_buckets::bucket#0 ] 5.5: zp[1]:97 [ init_buckets::distance#0 ] 3.67: zp[2]:91 [ init_buckets::$4 ] 0.43: zp[2]:76 [ init_buckets::screen#0 ] 
 Uplift Scope [sqrt] 202: zp[1]:148 [ sqrt::return#2 ] 103: zp[2]:146 [ sqrt::val#0 ] 34.33: zp[1]:160 [ sqrt::return#0 ] 4: zp[2]:154 [ sqrt::found#0 ] 4: zp[2]:156 [ sqrt::$3 ] 2: zp[2]:158 [ sqrt::$1 ] 
-Uplift Scope [init_squares] 25.17: zp[2]:61 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] 22: zp[1]:63 [ init_squares::i#2 init_squares::i#1 ] 22: zp[1]:172 [ init_squares::$3 ] 22: zp[1]:173 [ init_squares::$4 ] 13.93: zp[2]:59 [ init_squares::sqr#2 init_squares::sqr#1 ] 
+Uplift Scope [init_squares] 28.29: zp[1]:59 [ init_squares::i#2 init_squares::i#1 ] 22: zp[1]:172 [ init_squares::$3 ] 22: zp[1]:173 [ init_squares::$4 ] 20.07: zp[2]:62 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] 16.5: zp[2]:60 [ init_squares::sqr#2 init_squares::sqr#1 ] 
 Uplift Scope [malloc] 35: zp[2]:23 [ malloc::size#7 malloc::size#6 ] 0.4: zp[2]:109 [ malloc::mem#0 ] 
 Uplift Scope [] 23.25: zp[2]:21 [ heap_head#18 heap_head#1 ] 0.13: zp[2]:64 [ SCREEN_DIST#0 ] 0.05: zp[2]:66 [ SCREEN_ANGLE#0 ] 0.04: zp[2]:72 [ BUCKET_IDX#0 ] 0.03: zp[2]:170 [ SQUARES#1 ] 0.03: zp[2]:70 [ BUCKETS#0 ] 0.02: zp[2]:68 [ BUCKET_SIZES#0 ] 
 Uplift Scope [RADIX] 
@@ -7098,7 +7105,7 @@ Limited combination testing to 100 combinations of 6144 possible.
 Uplifting [sqr] best 1228399 combination reg byte a [ sqr::val#2 sqr::val#1 sqr::val#0 ] zp[2]:140 [ sqr::return#3 ] zp[2]:168 [ sqr::return#0 ] zp[2]:135 [ sqr::return#2 ] reg byte a [ sqr::$0 ] 
 Uplifting [init_buckets] best 1228119 combination zp[2]:10 [ init_buckets::dist#4 init_buckets::dist#6 init_buckets::dist#1 ] reg byte y [ init_buckets::i#2 init_buckets::i#1 ] reg byte y [ init_buckets::i3#2 init_buckets::i3#1 ] zp[2]:12 [ init_buckets::i1#2 init_buckets::i1#1 ] zp[2]:14 [ init_buckets::i2#2 init_buckets::i2#1 ] zp[2]:89 [ init_buckets::$15 ] zp[2]:93 [ init_buckets::$12 ] zp[2]:95 [ init_buckets::$16 ] zp[2]:98 [ init_buckets::$7 ] zp[2]:100 [ init_buckets::$13 ] zp[2]:102 [ init_buckets::$17 ] reg byte a [ init_buckets::$14 ] zp[2]:19 [ init_buckets::i4#2 init_buckets::i4#1 ] zp[2]:17 [ init_buckets::dist#5 init_buckets::dist#8 init_buckets::dist#3 ] zp[2]:106 [ init_buckets::$8 ] zp[2]:104 [ init_buckets::bucket#0 ] zp[1]:97 [ init_buckets::distance#0 ] zp[2]:91 [ init_buckets::$4 ] zp[2]:76 [ init_buckets::screen#0 ] 
 Uplifting [sqrt] best 1227216 combination reg byte a [ sqrt::return#2 ] zp[2]:146 [ sqrt::val#0 ] reg byte a [ sqrt::return#0 ] zp[2]:154 [ sqrt::found#0 ] zp[2]:156 [ sqrt::$3 ] zp[2]:158 [ sqrt::$1 ] 
-Uplifting [init_squares] best 1227016 combination zp[2]:61 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] reg byte x [ init_squares::i#2 init_squares::i#1 ] reg byte a [ init_squares::$3 ] reg byte a [ init_squares::$4 ] zp[2]:59 [ init_squares::sqr#2 init_squares::sqr#1 ] 
+Uplifting [init_squares] best 1227016 combination reg byte x [ init_squares::i#2 init_squares::i#1 ] reg byte a [ init_squares::$3 ] reg byte a [ init_squares::$4 ] zp[2]:62 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] zp[2]:60 [ init_squares::sqr#2 init_squares::sqr#1 ] 
 Uplifting [malloc] best 1227016 combination zp[2]:23 [ malloc::size#7 malloc::size#6 ] zp[2]:109 [ malloc::mem#0 ] 
 Uplifting [] best 1227016 combination zp[2]:21 [ heap_head#18 heap_head#1 ] zp[2]:64 [ SCREEN_DIST#0 ] zp[2]:66 [ SCREEN_ANGLE#0 ] zp[2]:72 [ BUCKET_IDX#0 ] zp[2]:170 [ SQUARES#1 ] zp[2]:70 [ BUCKETS#0 ] zp[2]:68 [ BUCKET_SIZES#0 ] 
 Uplifting [RADIX] best 1227016 combination 
@@ -7173,8 +7180,8 @@ Coalescing zero page register [ zp[1]:46 [ init_dist_screen::y#10 init_dist_scre
 Coalescing zero page register [ zp[2]:47 [ init_dist_screen::screen_topline#11 init_dist_screen::screen#0 init_dist_screen::screen_topline#1 ] ] with [ zp[2]:34 [ atan2_16::xi#3 atan2_16::xi#8 atan2_16::xi#0 atan2_16::xi#13 atan2_16::$7 atan2_16::xi#1 atan2_16::xi#2 ] ]
 Coalescing zero page register [ zp[2]:49 [ init_dist_screen::screen_bottomline#11 init_dist_screen::screen_bottomline#0 init_dist_screen::screen_bottomline#1 ] ] with [ zp[2]:37 [ atan2_16::angle#6 atan2_16::angle#12 atan2_16::angle#13 atan2_16::angle#2 atan2_16::angle#3 atan2_16::return#0 atan2_16::angle#5 atan2_16::angle#11 atan2_16::angle#1 atan2_16::angle#4 atan2_16::return#2 init_angle_screen::angle_w#0 init_angle_screen::$11 ] ]
 Coalescing zero page register [ zp[2]:55 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 bsearch16u::return#3 sqrt::found#0 sqrt::$3 sqrt::$1 ] ] with [ zp[2]:42 [ atan2_16::yd#5 atan2_16::yd#3 atan2_16::yd#10 atan2_16::yd#1 atan2_16::yd#2 ] ]
-Coalescing zero page register [ zp[2]:59 [ init_squares::sqr#2 init_squares::sqr#1 ] ] with [ zp[2]:44 [ atan2_16::xd#5 atan2_16::xd#3 atan2_16::xd#10 atan2_16::xd#1 atan2_16::xd#2 ] ]
-Coalescing zero page register [ zp[2]:79 [ main::bucket#0 ] ] with [ zp[2]:61 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] ]
+Coalescing zero page register [ zp[2]:60 [ init_squares::sqr#2 init_squares::sqr#1 ] ] with [ zp[2]:44 [ atan2_16::xd#5 atan2_16::xd#3 atan2_16::xd#10 atan2_16::xd#1 atan2_16::xd#2 ] ]
+Coalescing zero page register [ zp[2]:79 [ main::bucket#0 ] ] with [ zp[2]:62 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] ]
 Coalescing zero page register [ zp[1]:81 [ main::bucket_size#0 ] ] with [ zp[1]:52 [ init_dist_screen::x#2 init_dist_screen::x#1 ] ]
 Coalescing zero page register [ zp[2]:85 [ main::fill#0 ] ] with [ zp[2]:64 [ SCREEN_DIST#0 init_buckets::screen#0 ] ]
 Coalescing zero page register [ zp[2]:87 [ main::angle#0 ] ] with [ zp[2]:72 [ BUCKET_IDX#0 ] ]
@@ -7187,7 +7194,7 @@ Coalescing zero page register [ zp[2]:49 [ init_dist_screen::screen_bottomline#1
 Coalescing zero page register [ zp[2]:79 [ main::bucket#0 init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] ] with [ zp[2]:26 [ init_angle_screen::screen_topline#6 init_angle_screen::screen_topline#0 init_angle_screen::screen_topline#1 init_buckets::i2#2 init_buckets::i2#1 ] ]
 Coalescing zero page register [ zp[1]:97 [ init_buckets::distance#0 init_dist_screen::xb#2 init_dist_screen::xb#1 ] ] with [ zp[1]:25 [ init_angle_screen::y#5 init_angle_screen::y#1 main::bucket_idx#6 main::bucket_idx#1 ] ]
 Coalescing zero page register [ zp[1]:128 [ init_angle_screen::ang_w#0 ] ] with [ zp[1]:81 [ main::bucket_size#0 init_dist_screen::x#2 init_dist_screen::x#1 ] ]
-Coalescing zero page register [ zp[2]:135 [ sqr::return#2 init_dist_screen::yds#0 init_buckets::$8 ] ] with [ zp[2]:59 [ init_squares::sqr#2 init_squares::sqr#1 atan2_16::xd#5 atan2_16::xd#3 atan2_16::xd#10 atan2_16::xd#1 atan2_16::xd#2 ] ]
+Coalescing zero page register [ zp[2]:135 [ sqr::return#2 init_dist_screen::yds#0 init_buckets::$8 ] ] with [ zp[2]:60 [ init_squares::sqr#2 init_squares::sqr#1 atan2_16::xd#5 atan2_16::xd#3 atan2_16::xd#10 atan2_16::xd#1 atan2_16::xd#2 ] ]
 Coalescing zero page register [ zp[2]:140 [ sqr::return#3 init_dist_screen::xds#0 sqr::return#0 init_dist_screen::ds#0 sqrt::val#0 bsearch16u::key#0 ] ] with [ zp[2]:28 [ init_angle_screen::screen_bottomline#6 init_angle_screen::screen_bottomline#0 init_angle_screen::screen_bottomline#1 init_angle_screen::screen#0 init_buckets::i4#2 init_buckets::i4#1 ] ]
 Coalescing zero page register [ zp[2]:163 [ bsearch16u::pivot#0 ] ] with [ zp[2]:113 [ init_angle_screen::xw#0 atan2_16::x#0 init_buckets::$12 init_buckets::$16 ] ]
 Coalescing zero page register [ zp[2]:165 [ bsearch16u::result#0 ] ] with [ zp[2]:116 [ init_angle_screen::yw#0 atan2_16::y#0 init_buckets::$7 init_buckets::$13 init_buckets::$17 init_buckets::bucket#0 ] ]
@@ -8837,42 +8844,46 @@ init_squares: {
     sta.z malloc.size+1
     // [92] phi (byte*) heap_head#18 = (byte*) heap_head#1 [phi:init_squares->malloc#1] -- register_copy 
     jsr malloc
-    jmp __b2
-    // init_squares::@2
-  __b2:
+    jmp __b3
+    // init_squares::@3
+  __b3:
     // [244] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0
     // [245] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1 -- pwuz1=pwuz2 
     lda.z SQUARES
     sta.z squares
     lda.z SQUARES+1
     sta.z squares+1
-    // [246] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
-  __b1_from___b2:
-    // [246] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@2->init_squares::@1#0] -- vbuxx=vbuc1 
-    ldx #0
-    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
-    // [246] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@2->init_squares::@1#2] -- vwuz1=vwuc1 
+    // [246] phi from init_squares::@3 to init_squares::@1 [phi:init_squares::@3->init_squares::@1]
+  __b1_from___b3:
+    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@3->init_squares::@1#0] -- register_copy 
+    // [246] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@3->init_squares::@1#1] -- vwuz1=vwuc1 
     lda #<0
     sta.z sqr
     lda #>0
     sta.z sqr+1
-    jmp __b1
-    // [246] phi from init_squares::@1 to init_squares::@1 [phi:init_squares::@1->init_squares::@1]
-  __b1_from___b1:
-    // [246] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@1->init_squares::@1#0] -- register_copy 
-    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@1->init_squares::@1#1] -- register_copy 
-    // [246] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@1->init_squares::@1#2] -- register_copy 
+    // [246] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@3->init_squares::@1#2] -- vbuxx=vbuc1 
+    ldx #0
     jmp __b1
     // init_squares::@1
   __b1:
-    // [247] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
+    // [247] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2 -- vbuxx_lt_vbuc1_then_la1 
+    cpx #NUM_SQUARES
+    bcc __b2
+    jmp __breturn
+    // init_squares::@return
+  __breturn:
+    // [248] return 
+    rts
+    // init_squares::@2
+  __b2:
+    // [249] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
     ldy #0
     lda.z sqr
     sta (squares),y
     iny
     lda.z sqr+1
     sta (squares),y
-    // [248] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
+    // [250] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
     lda #SIZEOF_WORD
     clc
     adc.z squares
@@ -8880,29 +8891,27 @@ init_squares: {
     bcc !+
     inc.z squares+1
   !:
-    // [249] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1 
+    // [251] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1 
     txa
     asl
-    // [250] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuaa=vbuaa_plus_1 
+    // [252] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuaa=vbuaa_plus_1 
     clc
     adc #1
-    // [251] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuaa 
+    // [253] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuaa 
     clc
     adc.z sqr
     sta.z sqr
     bcc !+
     inc.z sqr+1
   !:
-    // [252] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuxx=_inc_vbuxx 
+    // [254] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuxx=_inc_vbuxx 
     inx
-    // [253] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1 -- vbuxx_neq_vbuc1_then_la1 
-    cpx #NUM_SQUARES-1+1
-    bne __b1_from___b1
-    jmp __breturn
-    // init_squares::@return
-  __breturn:
-    // [254] return 
-    rts
+    // [246] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
+  __b1_from___b2:
+    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@2->init_squares::@1#0] -- register_copy 
+    // [246] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
+    // [246] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@2->init_squares::@1#2] -- register_copy 
+    jmp __b1
 }
   // File Data
 // Angles representing ATAN(0.5), ATAN(0.25), ATAN(0.125), ...
@@ -8988,7 +8997,7 @@ Removing instruction jmp __b8
 Removing instruction jmp __b9
 Removing instruction jmp __b7
 Removing instruction jmp __breturn
-Removing instruction jmp __b2
+Removing instruction jmp __b3
 Removing instruction jmp __b1
 Removing instruction jmp __breturn
 Succesful ASM optimization Pass5NextJumpElimination
@@ -9010,8 +9019,8 @@ Replacing instruction ldx #0 with TAX
 Removing instruction ldy.z x
 Removing instruction ldy.z xb
 Removing instruction lda.z result+1
-Replacing instruction lda #<0 with TXA
 Removing instruction lda #>0
+Replacing instruction ldx #0 with TAX
 Succesful ASM optimization Pass5UnnecesaryLoadElimination
 Replacing label __bbegin with __b1
 Replacing label __b1 with __b2
@@ -9042,7 +9051,6 @@ Replacing label __b2_from___b5 with __b2
 Replacing label __breturn_from___b8 with __b2
 Replacing label __b7_from___b6 with __b7
 Replacing label __b7_from___b6 with __b7
-Replacing label __b1_from___b1 with __b1
 Removing instruction __bbegin:
 Removing instruction __b1_from___bbegin:
 Removing instruction malloc_from___b1:
@@ -9094,7 +9102,6 @@ Removing instruction __breturn_from___b8:
 Removing instruction __breturn:
 Removing instruction __b7_from___b6:
 Removing instruction __b7_from___b9:
-Removing instruction __b1_from___b1:
 Succesful ASM optimization Pass5RedundantLabelElimination
 Removing instruction __b3:
 Removing instruction malloc_from___b3:
@@ -9165,9 +9172,10 @@ Removing instruction __b9:
 Removing instruction __b3_from___b7:
 Removing instruction __breturn:
 Removing instruction malloc_from_init_squares:
-Removing instruction __b2:
-Removing instruction __b1_from___b2:
+Removing instruction __b3:
+Removing instruction __b1_from___b3:
 Removing instruction __breturn:
+Removing instruction __b1_from___b2:
 Succesful ASM optimization Pass5UnusedLabelElimination
 Skipping double jump to __b2 in jmp __b1_from___b12
 Replacing jump to rts with rts in jmp __b2
@@ -9183,7 +9191,6 @@ Removing instruction jmp __b5
 Removing instruction jmp __b7
 Removing instruction jmp __b1
 Removing instruction jmp __b1
-Removing instruction jmp __b1
 Succesful ASM optimization Pass5NextJumpElimination
 Removing instruction ldy #0
 Succesful ASM optimization Pass5UnnecesaryLoadElimination
@@ -9497,17 +9504,18 @@ FINAL SYMBOL TABLE
 (byte~) init_squares::$4 reg byte a 22.0
 (label) init_squares::@1
 (label) init_squares::@2
+(label) init_squares::@3
 (label) init_squares::@return
 (byte) init_squares::i
-(byte) init_squares::i#1 reg byte x 16.5
-(byte) init_squares::i#2 reg byte x 5.5
+(byte) init_squares::i#1 reg byte x 22.0
+(byte) init_squares::i#2 reg byte x 6.285714285714286
 (word) init_squares::sqr
-(word) init_squares::sqr#1 sqr zp[2]:28 7.333333333333333
-(word) init_squares::sqr#2 sqr zp[2]:28 6.6000000000000005
+(word) init_squares::sqr#1 sqr zp[2]:28 11.0
+(word) init_squares::sqr#2 sqr zp[2]:28 5.5
 (word*) init_squares::squares
 (word*) init_squares::squares#0 squares zp[2]:20 4.0
-(word*) init_squares::squares#1 squares zp[2]:20 3.6666666666666665
-(word*) init_squares::squares#2 squares zp[2]:20 17.5
+(word*) init_squares::squares#1 squares zp[2]:20 4.4
+(word*) init_squares::squares#2 squares zp[2]:20 11.666666666666666
 (void()) main()
 (byte~) main::$23 reg byte a 22.0
 (byte~) main::$24 reg byte a 202.0
@@ -9643,7 +9651,7 @@ reg byte a [ init_squares::$4 ]
 
 
 FINAL ASSEMBLER
-Score: 1116684
+Score: 1116714
 
   // File Comments
 // Fill screen using a spiral based on distance-to-center / angle-to-center
@@ -11210,7 +11218,7 @@ init_squares: {
     sta.z malloc.size+1
     // [92] phi (byte*) heap_head#18 = (byte*) heap_head#1 [phi:init_squares->malloc#1] -- register_copy 
     jsr malloc
-    // init_squares::@2
+    // init_squares::@3
     // malloc(NUM_SQUARES*sizeof(word))
     // [244] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0
     // squares = SQUARES
@@ -11219,22 +11227,28 @@ init_squares: {
     sta.z squares
     lda.z SQUARES+1
     sta.z squares+1
-    // [246] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
-    // [246] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@2->init_squares::@1#0] -- vbuxx=vbuc1 
-    ldx #0
-    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
-    // [246] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@2->init_squares::@1#2] -- vwuz1=vwuc1 
-    txa
+    // [246] phi from init_squares::@3 to init_squares::@1 [phi:init_squares::@3->init_squares::@1]
+    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@3->init_squares::@1#0] -- register_copy 
+    // [246] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@3->init_squares::@1#1] -- vwuz1=vwuc1 
+    lda #<0
     sta.z sqr
     sta.z sqr+1
-    // [246] phi from init_squares::@1 to init_squares::@1 [phi:init_squares::@1->init_squares::@1]
-    // [246] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@1->init_squares::@1#0] -- register_copy 
-    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@1->init_squares::@1#1] -- register_copy 
-    // [246] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@1->init_squares::@1#2] -- register_copy 
+    // [246] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@3->init_squares::@1#2] -- vbuxx=vbuc1 
+    tax
     // init_squares::@1
   __b1:
+    // for(byte i=0;i<NUM_SQUARES;i++)
+    // [247] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2 -- vbuxx_lt_vbuc1_then_la1 
+    cpx #NUM_SQUARES
+    bcc __b2
+    // init_squares::@return
+    // }
+    // [248] return 
+    rts
+    // init_squares::@2
+  __b2:
     // *squares++ = sqr
-    // [247] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
+    // [249] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
     ldy #0
     lda.z sqr
     sta (squares),y
@@ -11242,7 +11256,7 @@ init_squares: {
     lda.z sqr+1
     sta (squares),y
     // *squares++ = sqr;
-    // [248] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
+    // [250] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
     lda #SIZEOF_WORD
     clc
     adc.z squares
@@ -11251,31 +11265,29 @@ init_squares: {
     inc.z squares+1
   !:
     // i*2
-    // [249] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1 
+    // [251] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1 
     txa
     asl
     // i*2+1
-    // [250] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuaa=vbuaa_plus_1 
+    // [252] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuaa=vbuaa_plus_1 
     clc
     adc #1
     // sqr += i*2+1
-    // [251] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuaa 
+    // [253] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuaa 
     clc
     adc.z sqr
     sta.z sqr
     bcc !+
     inc.z sqr+1
   !:
-    // for( byte i: 0..NUM_SQUARES-1)
-    // [252] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuxx=_inc_vbuxx 
+    // for(byte i=0;i<NUM_SQUARES;i++)
+    // [254] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuxx=_inc_vbuxx 
     inx
-    // [253] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1 -- vbuxx_neq_vbuc1_then_la1 
-    cpx #NUM_SQUARES-1+1
-    bne __b1
-    // init_squares::@return
-    // }
-    // [254] return 
-    rts
+    // [246] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
+    // [246] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@2->init_squares::@1#0] -- register_copy 
+    // [246] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
+    // [246] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@2->init_squares::@1#2] -- register_copy 
+    jmp __b1
 }
   // File Data
 // Angles representing ATAN(0.5), ATAN(0.25), ATAN(0.125), ...
diff --git a/src/test/ref/screen-show-spiral-buckets.sym b/src/test/ref/screen-show-spiral-buckets.sym
index 73e0c5423..b313c8ace 100644
--- a/src/test/ref/screen-show-spiral-buckets.sym
+++ b/src/test/ref/screen-show-spiral-buckets.sym
@@ -301,17 +301,18 @@
 (byte~) init_squares::$4 reg byte a 22.0
 (label) init_squares::@1
 (label) init_squares::@2
+(label) init_squares::@3
 (label) init_squares::@return
 (byte) init_squares::i
-(byte) init_squares::i#1 reg byte x 16.5
-(byte) init_squares::i#2 reg byte x 5.5
+(byte) init_squares::i#1 reg byte x 22.0
+(byte) init_squares::i#2 reg byte x 6.285714285714286
 (word) init_squares::sqr
-(word) init_squares::sqr#1 sqr zp[2]:28 7.333333333333333
-(word) init_squares::sqr#2 sqr zp[2]:28 6.6000000000000005
+(word) init_squares::sqr#1 sqr zp[2]:28 11.0
+(word) init_squares::sqr#2 sqr zp[2]:28 5.5
 (word*) init_squares::squares
 (word*) init_squares::squares#0 squares zp[2]:20 4.0
-(word*) init_squares::squares#1 squares zp[2]:20 3.6666666666666665
-(word*) init_squares::squares#2 squares zp[2]:20 17.5
+(word*) init_squares::squares#1 squares zp[2]:20 4.4
+(word*) init_squares::squares#2 squares zp[2]:20 11.666666666666666
 (void()) main()
 (byte~) main::$23 reg byte a 22.0
 (byte~) main::$24 reg byte a 202.0
diff --git a/src/test/ref/screen-show-spiral.asm b/src/test/ref/screen-show-spiral.asm
index 7bd11f7d8..4c5c5dc20 100644
--- a/src/test/ref/screen-show-spiral.asm
+++ b/src/test/ref/screen-show-spiral.asm
@@ -688,11 +688,15 @@ init_squares: {
     sta.z squares
     lda.z SQUARES+1
     sta.z squares+1
-    ldx #0
-    txa
+    lda #<0
     sta.z sqr
     sta.z sqr+1
+    tax
   __b1:
+    cpx #NUM_SQUARES
+    bcc __b2
+    rts
+  __b2:
     ldy #0
     lda.z sqr
     sta (squares),y
@@ -717,9 +721,7 @@ init_squares: {
     inc.z sqr+1
   !:
     inx
-    cpx #NUM_SQUARES-1+1
-    bne __b1
-    rts
+    jmp __b1
 }
 // Allocates a block of size bytes of memory, returning a pointer to the beginning of the block.
 // The content of the newly allocated block of memory is not initialized, remaining with indeterminate values.
diff --git a/src/test/ref/screen-show-spiral.cfg b/src/test/ref/screen-show-spiral.cfg
index 11b59dba7..4bfcf0eaa 100644
--- a/src/test/ref/screen-show-spiral.cfg
+++ b/src/test/ref/screen-show-spiral.cfg
@@ -376,26 +376,28 @@ sqr::@return: scope:[sqr]  from sqr
 init_squares: scope:[init_squares]  from init_dist_screen
   [177] phi()
   [178] call malloc 
-  to:init_squares::@2
-init_squares::@2: scope:[init_squares]  from init_squares
+  to:init_squares::@3
+init_squares::@3: scope:[init_squares]  from init_squares
   [179] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0
   [180] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1
   to:init_squares::@1
-init_squares::@1: scope:[init_squares]  from init_squares::@1 init_squares::@2
-  [181] (byte) init_squares::i#2 ← phi( init_squares::@1/(byte) init_squares::i#1 init_squares::@2/(byte) 0 )
-  [181] (word*) init_squares::squares#2 ← phi( init_squares::@1/(word*) init_squares::squares#1 init_squares::@2/(word*) init_squares::squares#0 )
-  [181] (word) init_squares::sqr#2 ← phi( init_squares::@1/(word) init_squares::sqr#1 init_squares::@2/(word) 0 )
-  [182] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
-  [183] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
-  [184] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1
-  [185] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
-  [186] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4
-  [187] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2
-  [188] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1
+init_squares::@1: scope:[init_squares]  from init_squares::@2 init_squares::@3
+  [181] (word*) init_squares::squares#2 ← phi( init_squares::@2/(word*) init_squares::squares#1 init_squares::@3/(word*) init_squares::squares#0 )
+  [181] (word) init_squares::sqr#2 ← phi( init_squares::@2/(word) init_squares::sqr#1 init_squares::@3/(word) 0 )
+  [181] (byte) init_squares::i#2 ← phi( init_squares::@2/(byte) init_squares::i#1 init_squares::@3/(byte) 0 )
+  [182] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2
   to:init_squares::@return
 init_squares::@return: scope:[init_squares]  from init_squares::@1
-  [189] return 
+  [183] return 
   to:@return
+init_squares::@2: scope:[init_squares]  from init_squares::@1
+  [184] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
+  [185] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
+  [186] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1
+  [187] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
+  [188] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4
+  [189] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2
+  to:init_squares::@1
 
 (void*()) malloc((word) malloc::size)
 malloc: scope:[malloc]  from @1 @3 init_squares
diff --git a/src/test/ref/screen-show-spiral.log b/src/test/ref/screen-show-spiral.log
index 9afba628e..4d18b457f 100644
--- a/src/test/ref/screen-show-spiral.log
+++ b/src/test/ref/screen-show-spiral.log
@@ -31,7 +31,10 @@ Culled Empty Block (label) @9
 Culled Empty Block (label) @10
 Culled Empty Block (label) @11
 Culled Empty Block (label) @12
-Culled Empty Block (label) init_squares::@2
+Culled Empty Block (label) init_squares::@4
+Culled Empty Block (label) init_squares::@3
+Culled Empty Block (label) init_squares::@5
+Culled Empty Block (label) init_squares::@6
 Culled Empty Block (label) @14
 Culled Empty Block (label) sqr::@1
 Culled Empty Block (label) @15
@@ -181,7 +184,7 @@ bsearch16u::@3: scope:[bsearch16u]  from bsearch16u::@1 bsearch16u::@2
   (word*) bsearch16u::return#2 ← (word*~) bsearch16u::$4
   to:bsearch16u::@return
 @13: scope:[]  from @5
-  (byte*) heap_head#32 ← phi( @5/(byte*) heap_head#0 )
+  (byte*) heap_head#33 ← phi( @5/(byte*) heap_head#0 )
   (byte) NUM_SQUARES#0 ← (byte) $ff
   (word*) SQUARES#0 ← (word*) 0
   to:@18
@@ -194,9 +197,9 @@ init_squares: scope:[init_squares]  from init_dist_screen
   (word) malloc::size#0 ← (byte~) init_squares::$0
   call malloc 
   (void*) malloc::return#2 ← (void*) malloc::return#1
-  to:init_squares::@3
-init_squares::@3: scope:[init_squares]  from init_squares
-  (byte) NUM_SQUARES#7 ← phi( init_squares/(byte) NUM_SQUARES#6 )
+  to:init_squares::@7
+init_squares::@7: scope:[init_squares]  from init_squares
+  (byte) NUM_SQUARES#14 ← phi( init_squares/(byte) NUM_SQUARES#6 )
   (byte*) heap_head#14 ← phi( init_squares/(byte*) heap_head#2 )
   (void*) malloc::return#6 ← phi( init_squares/(void*) malloc::return#2 )
   (void*~) init_squares::$1 ← (void*) malloc::return#6
@@ -204,24 +207,32 @@ init_squares::@3: scope:[init_squares]  from init_squares
   (word*) SQUARES#1 ← ((word*)) (void*~) init_squares::$1
   (word*) init_squares::squares#0 ← (word*) SQUARES#1
   (word) init_squares::sqr#0 ← (word) 0
-  (number~) init_squares::$2 ← (byte) NUM_SQUARES#7 - (number) 1
   (byte) init_squares::i#0 ← (byte) 0
   to:init_squares::@1
-init_squares::@1: scope:[init_squares]  from init_squares::@1 init_squares::@3
-  (word*) SQUARES#17 ← phi( init_squares::@1/(word*) SQUARES#17 init_squares::@3/(word*) SQUARES#1 )
-  (byte*) heap_head#25 ← phi( init_squares::@1/(byte*) heap_head#25 init_squares::@3/(byte*) heap_head#3 )
-  (byte) init_squares::i#2 ← phi( init_squares::@1/(byte) init_squares::i#1 init_squares::@3/(byte) init_squares::i#0 )
-  (word*) init_squares::squares#2 ← phi( init_squares::@1/(word*) init_squares::squares#1 init_squares::@3/(word*) init_squares::squares#0 )
-  (word) init_squares::sqr#2 ← phi( init_squares::@1/(word) init_squares::sqr#1 init_squares::@3/(word) init_squares::sqr#0 )
+init_squares::@1: scope:[init_squares]  from init_squares::@2 init_squares::@7
+  (word*) SQUARES#17 ← phi( init_squares::@2/(word*) SQUARES#27 init_squares::@7/(word*) SQUARES#1 )
+  (byte*) heap_head#25 ← phi( init_squares::@2/(byte*) heap_head#32 init_squares::@7/(byte*) heap_head#3 )
+  (word*) init_squares::squares#3 ← phi( init_squares::@2/(word*) init_squares::squares#1 init_squares::@7/(word*) init_squares::squares#0 )
+  (word) init_squares::sqr#3 ← phi( init_squares::@2/(word) init_squares::sqr#1 init_squares::@7/(word) init_squares::sqr#0 )
+  (byte) NUM_SQUARES#7 ← phi( init_squares::@2/(byte) NUM_SQUARES#13 init_squares::@7/(byte) NUM_SQUARES#14 )
+  (byte) init_squares::i#2 ← phi( init_squares::@2/(byte) init_squares::i#1 init_squares::@7/(byte) init_squares::i#0 )
+  (bool~) init_squares::$2 ← (byte) init_squares::i#2 < (byte) NUM_SQUARES#7
+  if((bool~) init_squares::$2) goto init_squares::@2
+  to:init_squares::@return
+init_squares::@2: scope:[init_squares]  from init_squares::@1
+  (word*) SQUARES#27 ← phi( init_squares::@1/(word*) SQUARES#17 )
+  (byte*) heap_head#32 ← phi( init_squares::@1/(byte*) heap_head#25 )
+  (byte) NUM_SQUARES#13 ← phi( init_squares::@1/(byte) NUM_SQUARES#7 )
+  (byte) init_squares::i#3 ← phi( init_squares::@1/(byte) init_squares::i#2 )
+  (word*) init_squares::squares#2 ← phi( init_squares::@1/(word*) init_squares::squares#3 )
+  (word) init_squares::sqr#2 ← phi( init_squares::@1/(word) init_squares::sqr#3 )
   *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
   (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
-  (number~) init_squares::$3 ← (byte) init_squares::i#2 * (number) 2
+  (number~) init_squares::$3 ← (byte) init_squares::i#3 * (number) 2
   (number~) init_squares::$4 ← (number~) init_squares::$3 + (number) 1
   (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (number~) init_squares::$4
-  (byte) init_squares::i#1 ← (byte) init_squares::i#2 + rangenext(0,init_squares::$2)
-  (bool~) init_squares::$5 ← (byte) init_squares::i#1 != rangelast(0,init_squares::$2)
-  if((bool~) init_squares::$5) goto init_squares::@1
-  to:init_squares::@return
+  (byte) init_squares::i#1 ← ++ (byte) init_squares::i#3
+  to:init_squares::@1
 init_squares::@return: scope:[init_squares]  from init_squares::@1
   (word*) SQUARES#8 ← phi( init_squares::@1/(word*) SQUARES#17 )
   (byte*) heap_head#15 ← phi( init_squares::@1/(byte*) heap_head#25 )
@@ -245,7 +256,7 @@ sqr::@return: scope:[sqr]  from sqr
 
 (byte()) sqrt((word) sqrt::val)
 sqrt: scope:[sqrt]  from init_dist_screen::@21
-  (byte) NUM_SQUARES#8 ← phi( init_dist_screen::@21/(byte) NUM_SQUARES#13 )
+  (byte) NUM_SQUARES#8 ← phi( init_dist_screen::@21/(byte) NUM_SQUARES#15 )
   (word*) SQUARES#10 ← phi( init_dist_screen::@21/(word*) SQUARES#20 )
   (word) sqrt::val#1 ← phi( init_dist_screen::@21/(word) sqrt::val#0 )
   (word) bsearch16u::key#0 ← (word) sqrt::val#1
@@ -482,16 +493,16 @@ atan2_16::@return: scope:[atan2_16]  from atan2_16::@8
   return 
   to:@return
 @18: scope:[]  from @13
-  (word*) SQUARES#44 ← phi( @13/(word*) SQUARES#0 )
-  (byte) NUM_SQUARES#33 ← phi( @13/(byte) NUM_SQUARES#0 )
-  (byte*) heap_head#23 ← phi( @13/(byte*) heap_head#32 )
+  (word*) SQUARES#45 ← phi( @13/(word*) SQUARES#0 )
+  (byte) NUM_SQUARES#35 ← phi( @13/(byte) NUM_SQUARES#0 )
+  (byte*) heap_head#23 ← phi( @13/(byte*) heap_head#33 )
   (word) malloc::size#1 ← (number) $3e8
   call malloc 
   (void*) malloc::return#3 ← (void*) malloc::return#1
   to:@22
 @22: scope:[]  from @18
-  (word*) SQUARES#36 ← phi( @18/(word*) SQUARES#44 )
-  (byte) NUM_SQUARES#25 ← phi( @18/(byte) NUM_SQUARES#33 )
+  (word*) SQUARES#37 ← phi( @18/(word*) SQUARES#45 )
+  (byte) NUM_SQUARES#27 ← phi( @18/(byte) NUM_SQUARES#35 )
   (byte*) heap_head#16 ← phi( @18/(byte*) heap_head#2 )
   (void*) malloc::return#7 ← phi( @18/(void*) malloc::return#3 )
   (void*~) $0 ← (void*) malloc::return#7
@@ -502,8 +513,8 @@ atan2_16::@return: scope:[atan2_16]  from atan2_16::@8
   (void*) malloc::return#4 ← (void*) malloc::return#1
   to:@23
 @23: scope:[]  from @22
-  (word*) SQUARES#35 ← phi( @22/(word*) SQUARES#36 )
-  (byte) NUM_SQUARES#24 ← phi( @22/(byte) NUM_SQUARES#25 )
+  (word*) SQUARES#36 ← phi( @22/(word*) SQUARES#37 )
+  (byte) NUM_SQUARES#26 ← phi( @22/(byte) NUM_SQUARES#27 )
   (byte*) SCREEN_DIST#7 ← phi( @22/(byte*) SCREEN_DIST#0 )
   (byte*) heap_head#17 ← phi( @22/(byte*) heap_head#2 )
   (void*) malloc::return#8 ← phi( @22/(void*) malloc::return#4 )
@@ -517,7 +528,7 @@ main: scope:[main]  from @21
   (byte*) SCREEN_ANGLE#3 ← phi( @21/(byte*) SCREEN_ANGLE#5 )
   (word*) SQUARES#21 ← phi( @21/(word*) SQUARES#26 )
   (byte*) heap_head#26 ← phi( @21/(byte*) heap_head#31 )
-  (byte) NUM_SQUARES#14 ← phi( @21/(byte) NUM_SQUARES#18 )
+  (byte) NUM_SQUARES#16 ← phi( @21/(byte) NUM_SQUARES#20 )
   (byte*) SCREEN_DIST#1 ← phi( @21/(byte*) SCREEN_DIST#3 )
   (byte*) init_dist_screen::screen#0 ← (byte*) SCREEN_DIST#1
   call init_dist_screen 
@@ -535,24 +546,24 @@ main::@17: scope:[main]  from main
   call init_angle_screen 
   to:main::@18
 main::@18: scope:[main]  from main::@17
-  (word*) SQUARES#28 ← phi( main::@17/(word*) SQUARES#3 )
-  (byte*) heap_head#34 ← phi( main::@17/(byte*) heap_head#7 )
-  (byte) NUM_SQUARES#20 ← phi( main::@17/(byte) NUM_SQUARES#1 )
+  (word*) SQUARES#29 ← phi( main::@17/(word*) SQUARES#3 )
+  (byte*) heap_head#35 ← phi( main::@17/(byte*) heap_head#7 )
+  (byte) NUM_SQUARES#22 ← phi( main::@17/(byte) NUM_SQUARES#1 )
   (byte*) SCREEN_ANGLE#7 ← phi( main::@17/(byte*) SCREEN_ANGLE#1 )
   (byte*) SCREEN_DIST#6 ← phi( main::@17/(byte*) SCREEN_DIST#8 )
   to:main::@1
 main::@1: scope:[main]  from main::@12 main::@18
-  (word*) SQUARES#22 ← phi( main::@12/(word*) SQUARES#27 main::@18/(word*) SQUARES#28 )
-  (byte*) heap_head#27 ← phi( main::@12/(byte*) heap_head#33 main::@18/(byte*) heap_head#34 )
-  (byte) NUM_SQUARES#15 ← phi( main::@12/(byte) NUM_SQUARES#19 main::@18/(byte) NUM_SQUARES#20 )
+  (word*) SQUARES#22 ← phi( main::@12/(word*) SQUARES#28 main::@18/(word*) SQUARES#29 )
+  (byte*) heap_head#27 ← phi( main::@12/(byte*) heap_head#34 main::@18/(byte*) heap_head#35 )
+  (byte) NUM_SQUARES#17 ← phi( main::@12/(byte) NUM_SQUARES#21 main::@18/(byte) NUM_SQUARES#22 )
   (byte*) SCREEN_ANGLE#4 ← phi( main::@12/(byte*) SCREEN_ANGLE#6 main::@18/(byte*) SCREEN_ANGLE#7 )
   (byte*) SCREEN_DIST#4 ← phi( main::@12/(byte*) SCREEN_DIST#5 main::@18/(byte*) SCREEN_DIST#6 )
   if(true) goto main::@2
   to:main::@return
 main::@2: scope:[main]  from main::@1
-  (word*) SQUARES#45 ← phi( main::@1/(word*) SQUARES#22 )
-  (byte*) heap_head#42 ← phi( main::@1/(byte*) heap_head#27 )
-  (byte) NUM_SQUARES#34 ← phi( main::@1/(byte) NUM_SQUARES#15 )
+  (word*) SQUARES#46 ← phi( main::@1/(word*) SQUARES#22 )
+  (byte*) heap_head#43 ← phi( main::@1/(byte*) heap_head#27 )
+  (byte) NUM_SQUARES#36 ← phi( main::@1/(byte) NUM_SQUARES#17 )
   (byte*) SCREEN_ANGLE#2 ← phi( main::@1/(byte*) SCREEN_ANGLE#4 )
   (byte*) SCREEN_DIST#2 ← phi( main::@1/(byte*) SCREEN_DIST#4 )
   (byte*) main::dist#0 ← (byte*) SCREEN_DIST#2
@@ -564,9 +575,9 @@ main::@2: scope:[main]  from main::@1
 main::@4: scope:[main]  from main::@2 main::@5
   (byte*) SCREEN_ANGLE#10 ← phi( main::@2/(byte*) SCREEN_ANGLE#2 main::@5/(byte*) SCREEN_ANGLE#9 )
   (byte*) SCREEN_DIST#11 ← phi( main::@2/(byte*) SCREEN_DIST#2 main::@5/(byte*) SCREEN_DIST#10 )
-  (word*) SQUARES#37 ← phi( main::@2/(word*) SQUARES#45 main::@5/(word*) SQUARES#29 )
-  (byte*) heap_head#37 ← phi( main::@2/(byte*) heap_head#42 main::@5/(byte*) heap_head#35 )
-  (byte) NUM_SQUARES#26 ← phi( main::@2/(byte) NUM_SQUARES#34 main::@5/(byte) NUM_SQUARES#21 )
+  (word*) SQUARES#38 ← phi( main::@2/(word*) SQUARES#46 main::@5/(word*) SQUARES#30 )
+  (byte*) heap_head#38 ← phi( main::@2/(byte*) heap_head#43 main::@5/(byte*) heap_head#36 )
+  (byte) NUM_SQUARES#28 ← phi( main::@2/(byte) NUM_SQUARES#36 main::@5/(byte) NUM_SQUARES#23 )
   (byte*) main::min_fill#5 ← phi( main::@2/(byte*) main::min_fill#0 main::@5/(byte*) main::min_fill#4 )
   (word) main::min_dist_angle#4 ← phi( main::@2/(word) main::min_dist_angle#0 main::@5/(word) main::min_dist_angle#5 )
   (byte*) main::angle#4 ← phi( main::@2/(byte*) main::angle#0 main::@5/(byte*) main::angle#1 )
@@ -579,9 +590,9 @@ main::@4: scope:[main]  from main::@2 main::@5
 main::@5: scope:[main]  from main::@4 main::@7 main::@8
   (byte*) SCREEN_ANGLE#9 ← phi( main::@4/(byte*) SCREEN_ANGLE#10 main::@7/(byte*) SCREEN_ANGLE#11 main::@8/(byte*) SCREEN_ANGLE#12 )
   (byte*) SCREEN_DIST#10 ← phi( main::@4/(byte*) SCREEN_DIST#11 main::@7/(byte*) SCREEN_DIST#12 main::@8/(byte*) SCREEN_DIST#13 )
-  (word*) SQUARES#29 ← phi( main::@4/(word*) SQUARES#37 main::@7/(word*) SQUARES#38 main::@8/(word*) SQUARES#39 )
-  (byte*) heap_head#35 ← phi( main::@4/(byte*) heap_head#37 main::@7/(byte*) heap_head#38 main::@8/(byte*) heap_head#39 )
-  (byte) NUM_SQUARES#21 ← phi( main::@4/(byte) NUM_SQUARES#26 main::@7/(byte) NUM_SQUARES#27 main::@8/(byte) NUM_SQUARES#28 )
+  (word*) SQUARES#30 ← phi( main::@4/(word*) SQUARES#38 main::@7/(word*) SQUARES#39 main::@8/(word*) SQUARES#40 )
+  (byte*) heap_head#36 ← phi( main::@4/(byte*) heap_head#38 main::@7/(byte*) heap_head#39 main::@8/(byte*) heap_head#40 )
+  (byte) NUM_SQUARES#23 ← phi( main::@4/(byte) NUM_SQUARES#28 main::@7/(byte) NUM_SQUARES#29 main::@8/(byte) NUM_SQUARES#30 )
   (byte*) main::min_fill#4 ← phi( main::@4/(byte*) main::min_fill#5 main::@7/(byte*) main::min_fill#6 main::@8/(byte*) main::min_fill#1 )
   (word) main::min_dist_angle#5 ← phi( main::@4/(word) main::min_dist_angle#4 main::@7/(word) main::min_dist_angle#2 main::@8/(word) main::min_dist_angle#1 )
   (byte*) main::fill#3 ← phi( main::@4/(byte*) main::fill#2 main::@7/(byte*) main::fill#5 main::@8/(byte*) main::fill#4 )
@@ -596,9 +607,9 @@ main::@5: scope:[main]  from main::@4 main::@7 main::@8
 main::@7: scope:[main]  from main::@4
   (byte*) SCREEN_ANGLE#11 ← phi( main::@4/(byte*) SCREEN_ANGLE#10 )
   (byte*) SCREEN_DIST#12 ← phi( main::@4/(byte*) SCREEN_DIST#11 )
-  (word*) SQUARES#38 ← phi( main::@4/(word*) SQUARES#37 )
-  (byte*) heap_head#38 ← phi( main::@4/(byte*) heap_head#37 )
-  (byte) NUM_SQUARES#27 ← phi( main::@4/(byte) NUM_SQUARES#26 )
+  (word*) SQUARES#39 ← phi( main::@4/(word*) SQUARES#38 )
+  (byte*) heap_head#39 ← phi( main::@4/(byte*) heap_head#38 )
+  (byte) NUM_SQUARES#29 ← phi( main::@4/(byte) NUM_SQUARES#28 )
   (byte*) main::min_fill#6 ← phi( main::@4/(byte*) main::min_fill#5 )
   (byte*) main::fill#5 ← phi( main::@4/(byte*) main::fill#2 )
   (word) main::min_dist_angle#2 ← phi( main::@4/(word) main::min_dist_angle#4 )
@@ -612,9 +623,9 @@ main::@7: scope:[main]  from main::@4
 main::@8: scope:[main]  from main::@7
   (byte*) SCREEN_ANGLE#12 ← phi( main::@7/(byte*) SCREEN_ANGLE#11 )
   (byte*) SCREEN_DIST#13 ← phi( main::@7/(byte*) SCREEN_DIST#12 )
-  (word*) SQUARES#39 ← phi( main::@7/(word*) SQUARES#38 )
-  (byte*) heap_head#39 ← phi( main::@7/(byte*) heap_head#38 )
-  (byte) NUM_SQUARES#28 ← phi( main::@7/(byte) NUM_SQUARES#27 )
+  (word*) SQUARES#40 ← phi( main::@7/(word*) SQUARES#39 )
+  (byte*) heap_head#40 ← phi( main::@7/(byte*) heap_head#39 )
+  (byte) NUM_SQUARES#30 ← phi( main::@7/(byte) NUM_SQUARES#29 )
   (byte*) main::angle#5 ← phi( main::@7/(byte*) main::angle#3 )
   (byte*) main::dist#5 ← phi( main::@7/(byte*) main::dist#3 )
   (word) main::dist_angle#1 ← phi( main::@7/(word) main::dist_angle#0 )
@@ -625,9 +636,9 @@ main::@8: scope:[main]  from main::@7
 main::@9: scope:[main]  from main::@5
   (byte*) SCREEN_ANGLE#8 ← phi( main::@5/(byte*) SCREEN_ANGLE#9 )
   (byte*) SCREEN_DIST#9 ← phi( main::@5/(byte*) SCREEN_DIST#10 )
-  (word*) SQUARES#23 ← phi( main::@5/(word*) SQUARES#29 )
-  (byte*) heap_head#28 ← phi( main::@5/(byte*) heap_head#35 )
-  (byte) NUM_SQUARES#16 ← phi( main::@5/(byte) NUM_SQUARES#21 )
+  (word*) SQUARES#23 ← phi( main::@5/(word*) SQUARES#30 )
+  (byte*) heap_head#28 ← phi( main::@5/(byte*) heap_head#36 )
+  (byte) NUM_SQUARES#18 ← phi( main::@5/(byte) NUM_SQUARES#23 )
   (byte*) main::min_fill#3 ← phi( main::@5/(byte*) main::min_fill#4 )
   (word) main::min_dist_angle#3 ← phi( main::@5/(word) main::min_dist_angle#5 )
   (bool~) main::$7 ← (word) main::min_dist_angle#3 == (number) $ffff
@@ -635,9 +646,9 @@ main::@9: scope:[main]  from main::@5
   if((bool~) main::$8) goto main::@12
   to:main::@return
 main::@12: scope:[main]  from main::@9
-  (word*) SQUARES#27 ← phi( main::@9/(word*) SQUARES#23 )
-  (byte*) heap_head#33 ← phi( main::@9/(byte*) heap_head#28 )
-  (byte) NUM_SQUARES#19 ← phi( main::@9/(byte) NUM_SQUARES#16 )
+  (word*) SQUARES#28 ← phi( main::@9/(word*) SQUARES#23 )
+  (byte*) heap_head#34 ← phi( main::@9/(byte*) heap_head#28 )
+  (byte) NUM_SQUARES#21 ← phi( main::@9/(byte) NUM_SQUARES#18 )
   (byte*) SCREEN_ANGLE#6 ← phi( main::@9/(byte*) SCREEN_ANGLE#8 )
   (byte*) SCREEN_DIST#5 ← phi( main::@9/(byte*) SCREEN_DIST#9 )
   (byte*) main::min_fill#2 ← phi( main::@9/(byte*) main::min_fill#3 )
@@ -646,7 +657,7 @@ main::@12: scope:[main]  from main::@9
 main::@return: scope:[main]  from main::@1 main::@9
   (word*) SQUARES#13 ← phi( main::@1/(word*) SQUARES#22 main::@9/(word*) SQUARES#23 )
   (byte*) heap_head#19 ← phi( main::@1/(byte*) heap_head#27 main::@9/(byte*) heap_head#28 )
-  (byte) NUM_SQUARES#10 ← phi( main::@1/(byte) NUM_SQUARES#15 main::@9/(byte) NUM_SQUARES#16 )
+  (byte) NUM_SQUARES#10 ← phi( main::@1/(byte) NUM_SQUARES#17 main::@9/(byte) NUM_SQUARES#18 )
   (byte) NUM_SQUARES#2 ← (byte) NUM_SQUARES#10
   (byte*) heap_head#8 ← (byte*) heap_head#19
   (word*) SQUARES#4 ← (word*) SQUARES#13
@@ -743,7 +754,7 @@ init_dist_screen: scope:[init_dist_screen]  from main
   call init_squares 
   to:init_dist_screen::@19
 init_dist_screen::@19: scope:[init_dist_screen]  from init_dist_screen
-  (byte) NUM_SQUARES#40 ← phi( init_dist_screen/(byte) NUM_SQUARES#3 )
+  (byte) NUM_SQUARES#42 ← phi( init_dist_screen/(byte) NUM_SQUARES#3 )
   (byte*) init_dist_screen::screen#1 ← phi( init_dist_screen/(byte*) init_dist_screen::screen#2 )
   (word*) SQUARES#14 ← phi( init_dist_screen/(word*) SQUARES#2 )
   (byte*) heap_head#20 ← phi( init_dist_screen/(byte*) heap_head#4 )
@@ -755,11 +766,11 @@ init_dist_screen::@19: scope:[init_dist_screen]  from init_dist_screen
   (byte) init_dist_screen::y#0 ← (byte) 0
   to:init_dist_screen::@1
 init_dist_screen::@1: scope:[init_dist_screen]  from init_dist_screen::@19 init_dist_screen::@7
-  (byte*) heap_head#48 ← phi( init_dist_screen::@19/(byte*) heap_head#9 init_dist_screen::@7/(byte*) heap_head#30 )
-  (byte) NUM_SQUARES#39 ← phi( init_dist_screen::@19/(byte) NUM_SQUARES#40 init_dist_screen::@7/(byte) NUM_SQUARES#17 )
+  (byte*) heap_head#49 ← phi( init_dist_screen::@19/(byte*) heap_head#9 init_dist_screen::@7/(byte*) heap_head#30 )
+  (byte) NUM_SQUARES#41 ← phi( init_dist_screen::@19/(byte) NUM_SQUARES#42 init_dist_screen::@7/(byte) NUM_SQUARES#19 )
   (byte*) init_dist_screen::screen_bottomline#14 ← phi( init_dist_screen::@19/(byte*) init_dist_screen::screen_bottomline#0 init_dist_screen::@7/(byte*) init_dist_screen::screen_bottomline#1 )
   (byte*) init_dist_screen::screen_topline#14 ← phi( init_dist_screen::@19/(byte*) init_dist_screen::screen_topline#0 init_dist_screen::@7/(byte*) init_dist_screen::screen_topline#1 )
-  (word*) SQUARES#40 ← phi( init_dist_screen::@19/(word*) SQUARES#5 init_dist_screen::@7/(word*) SQUARES#25 )
+  (word*) SQUARES#41 ← phi( init_dist_screen::@19/(word*) SQUARES#5 init_dist_screen::@7/(word*) SQUARES#25 )
   (byte) init_dist_screen::y#2 ← phi( init_dist_screen::@19/(byte) init_dist_screen::y#0 init_dist_screen::@7/(byte) init_dist_screen::y#1 )
   (number~) init_dist_screen::$2 ← (byte) init_dist_screen::y#2 * (number) 2
   (byte) init_dist_screen::y2#0 ← (number~) init_dist_screen::$2
@@ -767,34 +778,34 @@ init_dist_screen::@1: scope:[init_dist_screen]  from init_dist_screen::@19 init_
   if((bool~) init_dist_screen::$3) goto init_dist_screen::@2
   to:init_dist_screen::@3
 init_dist_screen::@2: scope:[init_dist_screen]  from init_dist_screen::@1
-  (byte*) heap_head#45 ← phi( init_dist_screen::@1/(byte*) heap_head#48 )
-  (byte) NUM_SQUARES#37 ← phi( init_dist_screen::@1/(byte) NUM_SQUARES#39 )
+  (byte*) heap_head#46 ← phi( init_dist_screen::@1/(byte*) heap_head#49 )
+  (byte) NUM_SQUARES#39 ← phi( init_dist_screen::@1/(byte) NUM_SQUARES#41 )
   (byte) init_dist_screen::y#9 ← phi( init_dist_screen::@1/(byte) init_dist_screen::y#2 )
   (byte*) init_dist_screen::screen_bottomline#11 ← phi( init_dist_screen::@1/(byte*) init_dist_screen::screen_bottomline#14 )
   (byte*) init_dist_screen::screen_topline#11 ← phi( init_dist_screen::@1/(byte*) init_dist_screen::screen_topline#14 )
-  (word*) SQUARES#30 ← phi( init_dist_screen::@1/(word*) SQUARES#40 )
+  (word*) SQUARES#31 ← phi( init_dist_screen::@1/(word*) SQUARES#41 )
   (byte) init_dist_screen::y2#1 ← phi( init_dist_screen::@1/(byte) init_dist_screen::y2#0 )
   (number~) init_dist_screen::$6 ← (byte) init_dist_screen::y2#1 - (number) $18
   (number~) init_dist_screen::$7 ← (number~) init_dist_screen::$6
   to:init_dist_screen::@4
 init_dist_screen::@3: scope:[init_dist_screen]  from init_dist_screen::@1
-  (byte*) heap_head#46 ← phi( init_dist_screen::@1/(byte*) heap_head#48 )
-  (byte) NUM_SQUARES#38 ← phi( init_dist_screen::@1/(byte) NUM_SQUARES#39 )
+  (byte*) heap_head#47 ← phi( init_dist_screen::@1/(byte*) heap_head#49 )
+  (byte) NUM_SQUARES#40 ← phi( init_dist_screen::@1/(byte) NUM_SQUARES#41 )
   (byte) init_dist_screen::y#10 ← phi( init_dist_screen::@1/(byte) init_dist_screen::y#2 )
   (byte*) init_dist_screen::screen_bottomline#12 ← phi( init_dist_screen::@1/(byte*) init_dist_screen::screen_bottomline#14 )
   (byte*) init_dist_screen::screen_topline#12 ← phi( init_dist_screen::@1/(byte*) init_dist_screen::screen_topline#14 )
-  (word*) SQUARES#31 ← phi( init_dist_screen::@1/(word*) SQUARES#40 )
+  (word*) SQUARES#32 ← phi( init_dist_screen::@1/(word*) SQUARES#41 )
   (byte) init_dist_screen::y2#2 ← phi( init_dist_screen::@1/(byte) init_dist_screen::y2#0 )
   (number~) init_dist_screen::$4 ← (number) $18 - (byte) init_dist_screen::y2#2
   (number~) init_dist_screen::$5 ← (number~) init_dist_screen::$4
   to:init_dist_screen::@4
 init_dist_screen::@4: scope:[init_dist_screen]  from init_dist_screen::@2 init_dist_screen::@3
-  (byte*) heap_head#43 ← phi( init_dist_screen::@2/(byte*) heap_head#45 init_dist_screen::@3/(byte*) heap_head#46 )
-  (byte) NUM_SQUARES#35 ← phi( init_dist_screen::@2/(byte) NUM_SQUARES#37 init_dist_screen::@3/(byte) NUM_SQUARES#38 )
+  (byte*) heap_head#44 ← phi( init_dist_screen::@2/(byte*) heap_head#46 init_dist_screen::@3/(byte*) heap_head#47 )
+  (byte) NUM_SQUARES#37 ← phi( init_dist_screen::@2/(byte) NUM_SQUARES#39 init_dist_screen::@3/(byte) NUM_SQUARES#40 )
   (byte) init_dist_screen::y#7 ← phi( init_dist_screen::@2/(byte) init_dist_screen::y#9 init_dist_screen::@3/(byte) init_dist_screen::y#10 )
   (byte*) init_dist_screen::screen_bottomline#8 ← phi( init_dist_screen::@2/(byte*) init_dist_screen::screen_bottomline#11 init_dist_screen::@3/(byte*) init_dist_screen::screen_bottomline#12 )
   (byte*) init_dist_screen::screen_topline#8 ← phi( init_dist_screen::@2/(byte*) init_dist_screen::screen_topline#11 init_dist_screen::@3/(byte*) init_dist_screen::screen_topline#12 )
-  (word*) SQUARES#19 ← phi( init_dist_screen::@2/(word*) SQUARES#30 init_dist_screen::@3/(word*) SQUARES#31 )
+  (word*) SQUARES#19 ← phi( init_dist_screen::@2/(word*) SQUARES#31 init_dist_screen::@3/(word*) SQUARES#32 )
   (number~) init_dist_screen::$8 ← phi( init_dist_screen::@2/(number~) init_dist_screen::$7 init_dist_screen::@3/(number~) init_dist_screen::$5 )
   (byte) init_dist_screen::yd#0 ← (number~) init_dist_screen::$8
   (byte) sqr::val#0 ← (byte) init_dist_screen::yd#0
@@ -802,9 +813,9 @@ init_dist_screen::@4: scope:[init_dist_screen]  from init_dist_screen::@2 init_d
   (word) sqr::return#2 ← (word) sqr::return#1
   to:init_dist_screen::@20
 init_dist_screen::@20: scope:[init_dist_screen]  from init_dist_screen::@4
-  (word*) SQUARES#41 ← phi( init_dist_screen::@4/(word*) SQUARES#19 )
-  (byte*) heap_head#40 ← phi( init_dist_screen::@4/(byte*) heap_head#43 )
-  (byte) NUM_SQUARES#29 ← phi( init_dist_screen::@4/(byte) NUM_SQUARES#35 )
+  (word*) SQUARES#42 ← phi( init_dist_screen::@4/(word*) SQUARES#19 )
+  (byte*) heap_head#41 ← phi( init_dist_screen::@4/(byte*) heap_head#44 )
+  (byte) NUM_SQUARES#31 ← phi( init_dist_screen::@4/(byte) NUM_SQUARES#37 )
   (byte) init_dist_screen::y#5 ← phi( init_dist_screen::@4/(byte) init_dist_screen::y#7 )
   (byte*) init_dist_screen::screen_bottomline#6 ← phi( init_dist_screen::@4/(byte*) init_dist_screen::screen_bottomline#8 )
   (byte*) init_dist_screen::screen_topline#6 ← phi( init_dist_screen::@4/(byte*) init_dist_screen::screen_topline#8 )
@@ -817,9 +828,9 @@ init_dist_screen::@20: scope:[init_dist_screen]  from init_dist_screen::@4
 init_dist_screen::@5: scope:[init_dist_screen]  from init_dist_screen::@20 init_dist_screen::@22
   (byte) init_dist_screen::xb#8 ← phi( init_dist_screen::@20/(byte) init_dist_screen::xb#0 init_dist_screen::@22/(byte) init_dist_screen::xb#1 )
   (word) init_dist_screen::yds#6 ← phi( init_dist_screen::@20/(word) init_dist_screen::yds#0 init_dist_screen::@22/(word) init_dist_screen::yds#7 )
-  (word*) SQUARES#32 ← phi( init_dist_screen::@20/(word*) SQUARES#41 init_dist_screen::@22/(word*) SQUARES#42 )
-  (byte*) heap_head#36 ← phi( init_dist_screen::@20/(byte*) heap_head#40 init_dist_screen::@22/(byte*) heap_head#41 )
-  (byte) NUM_SQUARES#22 ← phi( init_dist_screen::@20/(byte) NUM_SQUARES#29 init_dist_screen::@22/(byte) NUM_SQUARES#30 )
+  (word*) SQUARES#33 ← phi( init_dist_screen::@20/(word*) SQUARES#42 init_dist_screen::@22/(word*) SQUARES#43 )
+  (byte*) heap_head#37 ← phi( init_dist_screen::@20/(byte*) heap_head#41 init_dist_screen::@22/(byte*) heap_head#42 )
+  (byte) NUM_SQUARES#24 ← phi( init_dist_screen::@20/(byte) NUM_SQUARES#31 init_dist_screen::@22/(byte) NUM_SQUARES#32 )
   (byte) init_dist_screen::y#4 ← phi( init_dist_screen::@20/(byte) init_dist_screen::y#5 init_dist_screen::@22/(byte) init_dist_screen::y#6 )
   (byte*) init_dist_screen::screen_bottomline#4 ← phi( init_dist_screen::@20/(byte*) init_dist_screen::screen_bottomline#6 init_dist_screen::@22/(byte*) init_dist_screen::screen_bottomline#3 )
   (byte*) init_dist_screen::screen_topline#4 ← phi( init_dist_screen::@20/(byte*) init_dist_screen::screen_topline#6 init_dist_screen::@22/(byte*) init_dist_screen::screen_topline#3 )
@@ -828,14 +839,14 @@ init_dist_screen::@5: scope:[init_dist_screen]  from init_dist_screen::@20 init_
   if((bool~) init_dist_screen::$10) goto init_dist_screen::@6
   to:init_dist_screen::@7
 init_dist_screen::@6: scope:[init_dist_screen]  from init_dist_screen::@5
-  (byte*) heap_head#51 ← phi( init_dist_screen::@5/(byte*) heap_head#36 )
+  (byte*) heap_head#52 ← phi( init_dist_screen::@5/(byte*) heap_head#37 )
   (byte) init_dist_screen::y#14 ← phi( init_dist_screen::@5/(byte) init_dist_screen::y#4 )
   (byte) init_dist_screen::xb#7 ← phi( init_dist_screen::@5/(byte) init_dist_screen::xb#8 )
   (byte*) init_dist_screen::screen_bottomline#13 ← phi( init_dist_screen::@5/(byte*) init_dist_screen::screen_bottomline#4 )
   (byte*) init_dist_screen::screen_topline#13 ← phi( init_dist_screen::@5/(byte*) init_dist_screen::screen_topline#4 )
-  (byte) NUM_SQUARES#36 ← phi( init_dist_screen::@5/(byte) NUM_SQUARES#22 )
+  (byte) NUM_SQUARES#38 ← phi( init_dist_screen::@5/(byte) NUM_SQUARES#24 )
   (word) init_dist_screen::yds#5 ← phi( init_dist_screen::@5/(word) init_dist_screen::yds#6 )
-  (word*) SQUARES#43 ← phi( init_dist_screen::@5/(word*) SQUARES#32 )
+  (word*) SQUARES#44 ← phi( init_dist_screen::@5/(word*) SQUARES#33 )
   (byte) init_dist_screen::x#3 ← phi( init_dist_screen::@5/(byte) init_dist_screen::x#2 )
   (number~) init_dist_screen::$11 ← (byte) init_dist_screen::x#3 * (number) 2
   (byte) init_dist_screen::x2#0 ← (number~) init_dist_screen::$11
@@ -843,9 +854,9 @@ init_dist_screen::@6: scope:[init_dist_screen]  from init_dist_screen::@5
   if((bool~) init_dist_screen::$12) goto init_dist_screen::@8
   to:init_dist_screen::@9
 init_dist_screen::@7: scope:[init_dist_screen]  from init_dist_screen::@5
-  (word*) SQUARES#25 ← phi( init_dist_screen::@5/(word*) SQUARES#32 )
-  (byte*) heap_head#30 ← phi( init_dist_screen::@5/(byte*) heap_head#36 )
-  (byte) NUM_SQUARES#17 ← phi( init_dist_screen::@5/(byte) NUM_SQUARES#22 )
+  (word*) SQUARES#25 ← phi( init_dist_screen::@5/(word*) SQUARES#33 )
+  (byte*) heap_head#30 ← phi( init_dist_screen::@5/(byte*) heap_head#37 )
+  (byte) NUM_SQUARES#19 ← phi( init_dist_screen::@5/(byte) NUM_SQUARES#24 )
   (byte) init_dist_screen::y#3 ← phi( init_dist_screen::@5/(byte) init_dist_screen::y#4 )
   (byte*) init_dist_screen::screen_bottomline#2 ← phi( init_dist_screen::@5/(byte*) init_dist_screen::screen_bottomline#4 )
   (byte*) init_dist_screen::screen_topline#2 ← phi( init_dist_screen::@5/(byte*) init_dist_screen::screen_topline#4 )
@@ -856,43 +867,43 @@ init_dist_screen::@7: scope:[init_dist_screen]  from init_dist_screen::@5
   if((bool~) init_dist_screen::$21) goto init_dist_screen::@1
   to:init_dist_screen::@return
 init_dist_screen::@8: scope:[init_dist_screen]  from init_dist_screen::@6
-  (byte*) heap_head#49 ← phi( init_dist_screen::@6/(byte*) heap_head#51 )
+  (byte*) heap_head#50 ← phi( init_dist_screen::@6/(byte*) heap_head#52 )
   (byte) init_dist_screen::y#12 ← phi( init_dist_screen::@6/(byte) init_dist_screen::y#14 )
   (byte) init_dist_screen::xb#5 ← phi( init_dist_screen::@6/(byte) init_dist_screen::xb#7 )
   (byte*) init_dist_screen::screen_bottomline#9 ← phi( init_dist_screen::@6/(byte*) init_dist_screen::screen_bottomline#13 )
   (byte) init_dist_screen::x#7 ← phi( init_dist_screen::@6/(byte) init_dist_screen::x#3 )
   (byte*) init_dist_screen::screen_topline#9 ← phi( init_dist_screen::@6/(byte*) init_dist_screen::screen_topline#13 )
-  (byte) NUM_SQUARES#31 ← phi( init_dist_screen::@6/(byte) NUM_SQUARES#36 )
+  (byte) NUM_SQUARES#33 ← phi( init_dist_screen::@6/(byte) NUM_SQUARES#38 )
   (word) init_dist_screen::yds#3 ← phi( init_dist_screen::@6/(word) init_dist_screen::yds#5 )
-  (word*) SQUARES#33 ← phi( init_dist_screen::@6/(word*) SQUARES#43 )
+  (word*) SQUARES#34 ← phi( init_dist_screen::@6/(word*) SQUARES#44 )
   (byte) init_dist_screen::x2#1 ← phi( init_dist_screen::@6/(byte) init_dist_screen::x2#0 )
   (number~) init_dist_screen::$15 ← (byte) init_dist_screen::x2#1 - (number) $27
   (number~) init_dist_screen::$16 ← (number~) init_dist_screen::$15
   to:init_dist_screen::@10
 init_dist_screen::@9: scope:[init_dist_screen]  from init_dist_screen::@6
-  (byte*) heap_head#50 ← phi( init_dist_screen::@6/(byte*) heap_head#51 )
+  (byte*) heap_head#51 ← phi( init_dist_screen::@6/(byte*) heap_head#52 )
   (byte) init_dist_screen::y#13 ← phi( init_dist_screen::@6/(byte) init_dist_screen::y#14 )
   (byte) init_dist_screen::xb#6 ← phi( init_dist_screen::@6/(byte) init_dist_screen::xb#7 )
   (byte*) init_dist_screen::screen_bottomline#10 ← phi( init_dist_screen::@6/(byte*) init_dist_screen::screen_bottomline#13 )
   (byte) init_dist_screen::x#8 ← phi( init_dist_screen::@6/(byte) init_dist_screen::x#3 )
   (byte*) init_dist_screen::screen_topline#10 ← phi( init_dist_screen::@6/(byte*) init_dist_screen::screen_topline#13 )
-  (byte) NUM_SQUARES#32 ← phi( init_dist_screen::@6/(byte) NUM_SQUARES#36 )
+  (byte) NUM_SQUARES#34 ← phi( init_dist_screen::@6/(byte) NUM_SQUARES#38 )
   (word) init_dist_screen::yds#4 ← phi( init_dist_screen::@6/(word) init_dist_screen::yds#5 )
-  (word*) SQUARES#34 ← phi( init_dist_screen::@6/(word*) SQUARES#43 )
+  (word*) SQUARES#35 ← phi( init_dist_screen::@6/(word*) SQUARES#44 )
   (byte) init_dist_screen::x2#2 ← phi( init_dist_screen::@6/(byte) init_dist_screen::x2#0 )
   (number~) init_dist_screen::$13 ← (number) $27 - (byte) init_dist_screen::x2#2
   (number~) init_dist_screen::$14 ← (number~) init_dist_screen::$13
   to:init_dist_screen::@10
 init_dist_screen::@10: scope:[init_dist_screen]  from init_dist_screen::@8 init_dist_screen::@9
-  (byte*) heap_head#47 ← phi( init_dist_screen::@8/(byte*) heap_head#49 init_dist_screen::@9/(byte*) heap_head#50 )
+  (byte*) heap_head#48 ← phi( init_dist_screen::@8/(byte*) heap_head#50 init_dist_screen::@9/(byte*) heap_head#51 )
   (byte) init_dist_screen::y#11 ← phi( init_dist_screen::@8/(byte) init_dist_screen::y#12 init_dist_screen::@9/(byte) init_dist_screen::y#13 )
   (byte) init_dist_screen::xb#4 ← phi( init_dist_screen::@8/(byte) init_dist_screen::xb#5 init_dist_screen::@9/(byte) init_dist_screen::xb#6 )
   (byte*) init_dist_screen::screen_bottomline#7 ← phi( init_dist_screen::@8/(byte*) init_dist_screen::screen_bottomline#9 init_dist_screen::@9/(byte*) init_dist_screen::screen_bottomline#10 )
   (byte) init_dist_screen::x#6 ← phi( init_dist_screen::@8/(byte) init_dist_screen::x#7 init_dist_screen::@9/(byte) init_dist_screen::x#8 )
   (byte*) init_dist_screen::screen_topline#7 ← phi( init_dist_screen::@8/(byte*) init_dist_screen::screen_topline#9 init_dist_screen::@9/(byte*) init_dist_screen::screen_topline#10 )
-  (byte) NUM_SQUARES#23 ← phi( init_dist_screen::@8/(byte) NUM_SQUARES#31 init_dist_screen::@9/(byte) NUM_SQUARES#32 )
+  (byte) NUM_SQUARES#25 ← phi( init_dist_screen::@8/(byte) NUM_SQUARES#33 init_dist_screen::@9/(byte) NUM_SQUARES#34 )
   (word) init_dist_screen::yds#2 ← phi( init_dist_screen::@8/(word) init_dist_screen::yds#3 init_dist_screen::@9/(word) init_dist_screen::yds#4 )
-  (word*) SQUARES#18 ← phi( init_dist_screen::@8/(word*) SQUARES#33 init_dist_screen::@9/(word*) SQUARES#34 )
+  (word*) SQUARES#18 ← phi( init_dist_screen::@8/(word*) SQUARES#34 init_dist_screen::@9/(word*) SQUARES#35 )
   (number~) init_dist_screen::$17 ← phi( init_dist_screen::@8/(number~) init_dist_screen::$16 init_dist_screen::@9/(number~) init_dist_screen::$14 )
   (byte) init_dist_screen::xd#0 ← (number~) init_dist_screen::$17
   (byte) sqr::val#1 ← (byte) init_dist_screen::xd#0
@@ -900,13 +911,13 @@ init_dist_screen::@10: scope:[init_dist_screen]  from init_dist_screen::@8 init_
   (word) sqr::return#3 ← (word) sqr::return#1
   to:init_dist_screen::@21
 init_dist_screen::@21: scope:[init_dist_screen]  from init_dist_screen::@10
-  (byte*) heap_head#44 ← phi( init_dist_screen::@10/(byte*) heap_head#47 )
+  (byte*) heap_head#45 ← phi( init_dist_screen::@10/(byte*) heap_head#48 )
   (byte) init_dist_screen::y#8 ← phi( init_dist_screen::@10/(byte) init_dist_screen::y#11 )
   (byte) init_dist_screen::xb#3 ← phi( init_dist_screen::@10/(byte) init_dist_screen::xb#4 )
   (byte*) init_dist_screen::screen_bottomline#5 ← phi( init_dist_screen::@10/(byte*) init_dist_screen::screen_bottomline#7 )
   (byte) init_dist_screen::x#5 ← phi( init_dist_screen::@10/(byte) init_dist_screen::x#6 )
   (byte*) init_dist_screen::screen_topline#5 ← phi( init_dist_screen::@10/(byte*) init_dist_screen::screen_topline#7 )
-  (byte) NUM_SQUARES#13 ← phi( init_dist_screen::@10/(byte) NUM_SQUARES#23 )
+  (byte) NUM_SQUARES#15 ← phi( init_dist_screen::@10/(byte) NUM_SQUARES#25 )
   (word*) SQUARES#20 ← phi( init_dist_screen::@10/(word*) SQUARES#18 )
   (word) init_dist_screen::yds#1 ← phi( init_dist_screen::@10/(word) init_dist_screen::yds#2 )
   (word) sqr::return#6 ← phi( init_dist_screen::@10/(word) sqr::return#3 )
@@ -920,9 +931,9 @@ init_dist_screen::@21: scope:[init_dist_screen]  from init_dist_screen::@10
   to:init_dist_screen::@22
 init_dist_screen::@22: scope:[init_dist_screen]  from init_dist_screen::@21
   (word) init_dist_screen::yds#7 ← phi( init_dist_screen::@21/(word) init_dist_screen::yds#1 )
-  (word*) SQUARES#42 ← phi( init_dist_screen::@21/(word*) SQUARES#20 )
-  (byte*) heap_head#41 ← phi( init_dist_screen::@21/(byte*) heap_head#44 )
-  (byte) NUM_SQUARES#30 ← phi( init_dist_screen::@21/(byte) NUM_SQUARES#13 )
+  (word*) SQUARES#43 ← phi( init_dist_screen::@21/(word*) SQUARES#20 )
+  (byte*) heap_head#42 ← phi( init_dist_screen::@21/(byte*) heap_head#45 )
+  (byte) NUM_SQUARES#32 ← phi( init_dist_screen::@21/(byte) NUM_SQUARES#15 )
   (byte) init_dist_screen::y#6 ← phi( init_dist_screen::@21/(byte) init_dist_screen::y#8 )
   (byte) init_dist_screen::xb#2 ← phi( init_dist_screen::@21/(byte) init_dist_screen::xb#3 )
   (byte*) init_dist_screen::screen_bottomline#3 ← phi( init_dist_screen::@21/(byte*) init_dist_screen::screen_bottomline#5 )
@@ -941,7 +952,7 @@ init_dist_screen::@22: scope:[init_dist_screen]  from init_dist_screen::@21
 init_dist_screen::@return: scope:[init_dist_screen]  from init_dist_screen::@7
   (word*) SQUARES#15 ← phi( init_dist_screen::@7/(word*) SQUARES#25 )
   (byte*) heap_head#21 ← phi( init_dist_screen::@7/(byte*) heap_head#30 )
-  (byte) NUM_SQUARES#11 ← phi( init_dist_screen::@7/(byte) NUM_SQUARES#17 )
+  (byte) NUM_SQUARES#11 ← phi( init_dist_screen::@7/(byte) NUM_SQUARES#19 )
   (byte) NUM_SQUARES#4 ← (byte) NUM_SQUARES#11
   (byte*) heap_head#10 ← (byte*) heap_head#21
   (word*) SQUARES#6 ← (word*) SQUARES#15
@@ -949,9 +960,9 @@ init_dist_screen::@return: scope:[init_dist_screen]  from init_dist_screen::@7
   to:@return
 @21: scope:[]  from @23
   (byte*) SCREEN_ANGLE#5 ← phi( @23/(byte*) SCREEN_ANGLE#0 )
-  (word*) SQUARES#26 ← phi( @23/(word*) SQUARES#35 )
+  (word*) SQUARES#26 ← phi( @23/(word*) SQUARES#36 )
   (byte*) heap_head#31 ← phi( @23/(byte*) heap_head#6 )
-  (byte) NUM_SQUARES#18 ← phi( @23/(byte) NUM_SQUARES#24 )
+  (byte) NUM_SQUARES#20 ← phi( @23/(byte) NUM_SQUARES#26 )
   (byte*) SCREEN_DIST#3 ← phi( @23/(byte*) SCREEN_DIST#7 )
   call main 
   to:@24
@@ -1020,6 +1031,8 @@ SYMBOL TABLE SSA
 (byte) NUM_SQUARES#39
 (byte) NUM_SQUARES#4
 (byte) NUM_SQUARES#40
+(byte) NUM_SQUARES#41
+(byte) NUM_SQUARES#42
 (byte) NUM_SQUARES#5
 (byte) NUM_SQUARES#6
 (byte) NUM_SQUARES#7
@@ -1102,6 +1115,7 @@ SYMBOL TABLE SSA
 (word*) SQUARES#43
 (word*) SQUARES#44
 (word*) SQUARES#45
+(word*) SQUARES#46
 (word*) SQUARES#5
 (word*) SQUARES#6
 (word*) SQUARES#7
@@ -1422,6 +1436,7 @@ SYMBOL TABLE SSA
 (byte*) heap_head#5
 (byte*) heap_head#50
 (byte*) heap_head#51
+(byte*) heap_head#52
 (byte*) heap_head#6
 (byte*) heap_head#7
 (byte*) heap_head#8
@@ -1636,25 +1651,28 @@ SYMBOL TABLE SSA
 (void()) init_squares()
 (byte~) init_squares::$0
 (void*~) init_squares::$1
-(number~) init_squares::$2
+(bool~) init_squares::$2
 (number~) init_squares::$3
 (number~) init_squares::$4
-(bool~) init_squares::$5
 (label) init_squares::@1
-(label) init_squares::@3
+(label) init_squares::@2
+(label) init_squares::@7
 (label) init_squares::@return
 (byte) init_squares::i
 (byte) init_squares::i#0
 (byte) init_squares::i#1
 (byte) init_squares::i#2
+(byte) init_squares::i#3
 (word) init_squares::sqr
 (word) init_squares::sqr#0
 (word) init_squares::sqr#1
 (word) init_squares::sqr#2
+(word) init_squares::sqr#3
 (word*) init_squares::squares
 (word*) init_squares::squares#0
 (word*) init_squares::squares#1
 (word*) init_squares::squares#2
+(word*) init_squares::squares#3
 (void()) main()
 (bool~) main::$2
 (bool~) main::$3
@@ -1782,10 +1800,8 @@ Adding number conversion cast (unumber) 1 in (number~) bsearch16u::$17 ← (numb
 Adding number conversion cast (unumber) bsearch16u::$17 in (number~) bsearch16u::$17 ← (unumber)(number) 1 * (const byte) SIZEOF_WORD
 Adding number conversion cast (unumber) 1 in (number~) bsearch16u::$18 ← (number) 1 * (const byte) SIZEOF_WORD
 Adding number conversion cast (unumber) bsearch16u::$18 in (number~) bsearch16u::$18 ← (unumber)(number) 1 * (const byte) SIZEOF_WORD
-Adding number conversion cast (unumber) 1 in (number~) init_squares::$2 ← (byte) NUM_SQUARES#7 - (number) 1
-Adding number conversion cast (unumber) init_squares::$2 in (number~) init_squares::$2 ← (byte) NUM_SQUARES#7 - (unumber)(number) 1
-Adding number conversion cast (unumber) 2 in (number~) init_squares::$3 ← (byte) init_squares::i#2 * (number) 2
-Adding number conversion cast (unumber) init_squares::$3 in (number~) init_squares::$3 ← (byte) init_squares::i#2 * (unumber)(number) 2
+Adding number conversion cast (unumber) 2 in (number~) init_squares::$3 ← (byte) init_squares::i#3 * (number) 2
+Adding number conversion cast (unumber) init_squares::$3 in (number~) init_squares::$3 ← (byte) init_squares::i#3 * (unumber)(number) 2
 Adding number conversion cast (unumber) 1 in (number~) init_squares::$4 ← (unumber~) init_squares::$3 + (number) 1
 Adding number conversion cast (unumber) init_squares::$4 in (number~) init_squares::$4 ← (unumber~) init_squares::$3 + (unumber)(number) 1
 Adding number conversion cast (snumber) 0 in (bool~) atan2_16::$0 ← (signed word) atan2_16::y#1 >= (number) 0
@@ -1838,12 +1854,12 @@ Adding number conversion cast (unumber) init_dist_screen::$7 in (number~) init_d
 Adding number conversion cast (unumber) $18 in (number~) init_dist_screen::$4 ← (number) $18 - (byte) init_dist_screen::y2#2
 Adding number conversion cast (unumber) init_dist_screen::$4 in (number~) init_dist_screen::$4 ← (unumber)(number) $18 - (byte) init_dist_screen::y2#2
 Adding number conversion cast (unumber) init_dist_screen::$5 in (number~) init_dist_screen::$5 ← (unumber~) init_dist_screen::$4
-Adding number conversion cast (unumber) init_dist_screen::$8 in (byte*) heap_head#43 ← phi( init_dist_screen::@2/(byte*) heap_head#45 init_dist_screen::@3/(byte*) heap_head#46 )
-  (byte) NUM_SQUARES#35 ← phi( init_dist_screen::@2/(byte) NUM_SQUARES#37 init_dist_screen::@3/(byte) NUM_SQUARES#38 )
+Adding number conversion cast (unumber) init_dist_screen::$8 in (byte*) heap_head#44 ← phi( init_dist_screen::@2/(byte*) heap_head#46 init_dist_screen::@3/(byte*) heap_head#47 )
+  (byte) NUM_SQUARES#37 ← phi( init_dist_screen::@2/(byte) NUM_SQUARES#39 init_dist_screen::@3/(byte) NUM_SQUARES#40 )
   (byte) init_dist_screen::y#7 ← phi( init_dist_screen::@2/(byte) init_dist_screen::y#9 init_dist_screen::@3/(byte) init_dist_screen::y#10 )
   (byte*) init_dist_screen::screen_bottomline#8 ← phi( init_dist_screen::@2/(byte*) init_dist_screen::screen_bottomline#11 init_dist_screen::@3/(byte*) init_dist_screen::screen_bottomline#12 )
   (byte*) init_dist_screen::screen_topline#8 ← phi( init_dist_screen::@2/(byte*) init_dist_screen::screen_topline#11 init_dist_screen::@3/(byte*) init_dist_screen::screen_topline#12 )
-  (word*) SQUARES#19 ← phi( init_dist_screen::@2/(word*) SQUARES#30 init_dist_screen::@3/(word*) SQUARES#31 )
+  (word*) SQUARES#19 ← phi( init_dist_screen::@2/(word*) SQUARES#31 init_dist_screen::@3/(word*) SQUARES#32 )
   (number~) init_dist_screen::$8 ← phi( init_dist_screen::@2/(unumber~) init_dist_screen::$7 init_dist_screen::@3/(unumber~) init_dist_screen::$5 )
 Adding number conversion cast (unumber) $13 in (bool~) init_dist_screen::$10 ← (byte) init_dist_screen::x#2 <= (number) $13
 Adding number conversion cast (unumber) 2 in (number~) init_dist_screen::$11 ← (byte) init_dist_screen::x#3 * (number) 2
@@ -1857,15 +1873,15 @@ Adding number conversion cast (unumber) init_dist_screen::$16 in (number~) init_
 Adding number conversion cast (unumber) $27 in (number~) init_dist_screen::$13 ← (number) $27 - (byte) init_dist_screen::x2#2
 Adding number conversion cast (unumber) init_dist_screen::$13 in (number~) init_dist_screen::$13 ← (unumber)(number) $27 - (byte) init_dist_screen::x2#2
 Adding number conversion cast (unumber) init_dist_screen::$14 in (number~) init_dist_screen::$14 ← (unumber~) init_dist_screen::$13
-Adding number conversion cast (unumber) init_dist_screen::$17 in (byte*) heap_head#47 ← phi( init_dist_screen::@8/(byte*) heap_head#49 init_dist_screen::@9/(byte*) heap_head#50 )
+Adding number conversion cast (unumber) init_dist_screen::$17 in (byte*) heap_head#48 ← phi( init_dist_screen::@8/(byte*) heap_head#50 init_dist_screen::@9/(byte*) heap_head#51 )
   (byte) init_dist_screen::y#11 ← phi( init_dist_screen::@8/(byte) init_dist_screen::y#12 init_dist_screen::@9/(byte) init_dist_screen::y#13 )
   (byte) init_dist_screen::xb#4 ← phi( init_dist_screen::@8/(byte) init_dist_screen::xb#5 init_dist_screen::@9/(byte) init_dist_screen::xb#6 )
   (byte*) init_dist_screen::screen_bottomline#7 ← phi( init_dist_screen::@8/(byte*) init_dist_screen::screen_bottomline#9 init_dist_screen::@9/(byte*) init_dist_screen::screen_bottomline#10 )
   (byte) init_dist_screen::x#6 ← phi( init_dist_screen::@8/(byte) init_dist_screen::x#7 init_dist_screen::@9/(byte) init_dist_screen::x#8 )
   (byte*) init_dist_screen::screen_topline#7 ← phi( init_dist_screen::@8/(byte*) init_dist_screen::screen_topline#9 init_dist_screen::@9/(byte*) init_dist_screen::screen_topline#10 )
-  (byte) NUM_SQUARES#23 ← phi( init_dist_screen::@8/(byte) NUM_SQUARES#31 init_dist_screen::@9/(byte) NUM_SQUARES#32 )
+  (byte) NUM_SQUARES#25 ← phi( init_dist_screen::@8/(byte) NUM_SQUARES#33 init_dist_screen::@9/(byte) NUM_SQUARES#34 )
   (word) init_dist_screen::yds#2 ← phi( init_dist_screen::@8/(word) init_dist_screen::yds#3 init_dist_screen::@9/(word) init_dist_screen::yds#4 )
-  (word*) SQUARES#18 ← phi( init_dist_screen::@8/(word*) SQUARES#33 init_dist_screen::@9/(word*) SQUARES#34 )
+  (word*) SQUARES#18 ← phi( init_dist_screen::@8/(word*) SQUARES#34 init_dist_screen::@9/(word*) SQUARES#35 )
   (number~) init_dist_screen::$17 ← phi( init_dist_screen::@8/(unumber~) init_dist_screen::$16 init_dist_screen::@9/(unumber~) init_dist_screen::$14 )
 Successful SSA optimization PassNAddNumberTypeConversions
 Inlining cast (void*) malloc::return#0 ← (void*)(byte*) malloc::mem#0
@@ -1890,7 +1906,6 @@ Simplifying constant integer cast 0
 Simplifying constant integer cast 1
 Simplifying constant integer cast 1
 Simplifying constant integer cast 1
-Simplifying constant integer cast 1
 Simplifying constant integer cast 2
 Simplifying constant integer cast 1
 Simplifying constant integer cast 0
@@ -1946,7 +1961,6 @@ Finalized signed number type (signed byte) 0
 Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) 1
-Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) 2
 Finalized unsigned number type (byte) 1
 Finalized signed number type (signed byte) 0
@@ -1993,8 +2007,7 @@ Finalized unsigned number type (byte) $27
 Successful SSA optimization PassNFinalizeNumberTypeConversions
 Inferred type updated to byte in (unumber~) bsearch16u::$17 ← (byte) 1 * (const byte) SIZEOF_WORD
 Inferred type updated to byte in (unumber~) bsearch16u::$18 ← (byte) 1 * (const byte) SIZEOF_WORD
-Inferred type updated to byte in (unumber~) init_squares::$2 ← (byte) NUM_SQUARES#7 - (byte) 1
-Inferred type updated to byte in (unumber~) init_squares::$3 ← (byte) init_squares::i#2 * (byte) 2
+Inferred type updated to byte in (unumber~) init_squares::$3 ← (byte) init_squares::i#3 * (byte) 2
 Inferred type updated to byte in (unumber~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
 Inferred type updated to word in (unumber~) atan2_16::$12 ← (word) $8000 - (word) atan2_16::angle#9
 Inferred type updated to byte in (unumber~) init_angle_screen::$3 ← (byte) init_angle_screen::x#3 * (byte) 2
@@ -2038,13 +2051,17 @@ Alias (word*) bsearch16u::return#1 = (word*) bsearch16u::return#4
 Alias (word*) bsearch16u::items#0 = (word*~) bsearch16u::$15 
 Alias (word*~) bsearch16u::$2 = (word*~) bsearch16u::$1 
 Alias (word*) bsearch16u::return#2 = (word*~) bsearch16u::$4 
-Alias (byte*) heap_head#0 = (byte*) heap_head#32 (byte*) heap_head#23 
+Alias (byte*) heap_head#0 = (byte*) heap_head#33 (byte*) heap_head#23 
 Alias (word) malloc::size#0 = (byte~) init_squares::$0 
 Alias (void*) malloc::return#2 = (void*) malloc::return#6 
-Alias (byte) NUM_SQUARES#6 = (byte) NUM_SQUARES#7 
+Alias (byte) NUM_SQUARES#14 = (byte) NUM_SQUARES#6 
 Alias (byte*) heap_head#14 = (byte*) heap_head#3 
-Alias (byte*) heap_head#15 = (byte*) heap_head#25 (byte*) heap_head#4 
-Alias (word*) SQUARES#17 = (word*) SQUARES#8 (word*) SQUARES#2 
+Alias (word) init_squares::sqr#2 = (word) init_squares::sqr#3 
+Alias (word*) init_squares::squares#2 = (word*) init_squares::squares#3 
+Alias (byte) init_squares::i#2 = (byte) init_squares::i#3 
+Alias (byte) NUM_SQUARES#13 = (byte) NUM_SQUARES#7 
+Alias (byte*) heap_head#15 = (byte*) heap_head#32 (byte*) heap_head#25 (byte*) heap_head#4 
+Alias (word*) SQUARES#17 = (word*) SQUARES#27 (word*) SQUARES#8 (word*) SQUARES#2 
 Alias (word) sqr::return#0 = (word) sqr::return#4 (word) sqr::return#1 
 Alias (word*) bsearch16u::return#3 = (word*) bsearch16u::return#5 
 Alias (word*) SQUARES#10 = (word*) SQUARES#11 
@@ -2087,8 +2104,8 @@ Alias (word) atan2_16::angle#4 = (word~) atan2_16::$12
 Alias (word) atan2_16::return#0 = (word) atan2_16::angle#10 (word) atan2_16::return#3 (word) atan2_16::return#1 
 Alias (word) atan2_16::angle#11 = (word) atan2_16::angle#15 
 Alias (word) atan2_16::angle#5 = (word~) atan2_16::$15 
-Alias (byte) NUM_SQUARES#0 = (byte) NUM_SQUARES#33 (byte) NUM_SQUARES#25 (byte) NUM_SQUARES#24 (byte) NUM_SQUARES#18 
-Alias (word*) SQUARES#0 = (word*) SQUARES#44 (word*) SQUARES#36 (word*) SQUARES#35 (word*) SQUARES#26 
+Alias (byte) NUM_SQUARES#0 = (byte) NUM_SQUARES#35 (byte) NUM_SQUARES#27 (byte) NUM_SQUARES#26 (byte) NUM_SQUARES#20 
+Alias (word*) SQUARES#0 = (word*) SQUARES#45 (word*) SQUARES#37 (word*) SQUARES#36 (word*) SQUARES#26 
 Alias (void*) malloc::return#3 = (void*) malloc::return#7 
 Alias (byte*) heap_head#16 = (byte*) heap_head#5 
 Alias (void*) malloc::return#4 = (void*) malloc::return#8 
@@ -2096,30 +2113,30 @@ Alias (byte*) SCREEN_DIST#0 = (byte*) SCREEN_DIST#7 (byte*) SCREEN_DIST#3
 Alias (byte*) heap_head#17 = (byte*) heap_head#6 (byte*) heap_head#31 
 Alias (byte*) SCREEN_ANGLE#1 = (byte*) SCREEN_ANGLE#3 (byte*) SCREEN_ANGLE#7 
 Alias (byte*) SCREEN_DIST#1 = (byte*) SCREEN_DIST#8 (byte*) SCREEN_DIST#6 
-Alias (byte) NUM_SQUARES#1 = (byte) NUM_SQUARES#9 (byte) NUM_SQUARES#20 
-Alias (byte*) heap_head#18 = (byte*) heap_head#7 (byte*) heap_head#34 
-Alias (word*) SQUARES#12 = (word*) SQUARES#3 (word*) SQUARES#28 
+Alias (byte) NUM_SQUARES#1 = (byte) NUM_SQUARES#9 (byte) NUM_SQUARES#22 
+Alias (byte*) heap_head#18 = (byte*) heap_head#7 (byte*) heap_head#35 
+Alias (word*) SQUARES#12 = (word*) SQUARES#3 (word*) SQUARES#29 
 Alias (byte*) SCREEN_DIST#2 = (byte*) SCREEN_DIST#4 
 Alias (byte*) SCREEN_ANGLE#2 = (byte*) SCREEN_ANGLE#4 
-Alias (byte) NUM_SQUARES#15 = (byte) NUM_SQUARES#34 
-Alias (byte*) heap_head#27 = (byte*) heap_head#42 
-Alias (word*) SQUARES#22 = (word*) SQUARES#45 
+Alias (byte) NUM_SQUARES#17 = (byte) NUM_SQUARES#36 
+Alias (byte*) heap_head#27 = (byte*) heap_head#43 
+Alias (word*) SQUARES#22 = (word*) SQUARES#46 
 Alias (byte*) main::dist#3 = (byte*) main::dist#4 (byte*) main::dist#5 
 Alias (byte*) main::angle#3 = (byte*) main::angle#4 (byte*) main::angle#5 
 Alias (word) main::min_dist_angle#2 = (word) main::min_dist_angle#4 
 Alias (byte*) main::fill#2 = (byte*) main::fill#5 (byte*) main::fill#4 (byte*) main::min_fill#1 
 Alias (byte*) main::min_fill#5 = (byte*) main::min_fill#6 
-Alias (byte) NUM_SQUARES#26 = (byte) NUM_SQUARES#27 (byte) NUM_SQUARES#28 
-Alias (byte*) heap_head#37 = (byte*) heap_head#38 (byte*) heap_head#39 
-Alias (word*) SQUARES#37 = (word*) SQUARES#38 (word*) SQUARES#39 
+Alias (byte) NUM_SQUARES#28 = (byte) NUM_SQUARES#29 (byte) NUM_SQUARES#30 
+Alias (byte*) heap_head#38 = (byte*) heap_head#39 (byte*) heap_head#40 
+Alias (word*) SQUARES#38 = (word*) SQUARES#39 (word*) SQUARES#40 
 Alias (byte*) SCREEN_DIST#11 = (byte*) SCREEN_DIST#12 (byte*) SCREEN_DIST#13 
 Alias (byte*) SCREEN_ANGLE#10 = (byte*) SCREEN_ANGLE#11 (byte*) SCREEN_ANGLE#12 
 Alias (word) main::dist_angle#0 = (word~) main::$9 (word) main::dist_angle#1 (word) main::min_dist_angle#1 
 Alias (word) main::min_dist_angle#3 = (word) main::min_dist_angle#5 
 Alias (byte*) main::min_fill#2 = (byte*) main::min_fill#3 (byte*) main::min_fill#4 
-Alias (byte) NUM_SQUARES#16 = (byte) NUM_SQUARES#21 (byte) NUM_SQUARES#19 
-Alias (byte*) heap_head#28 = (byte*) heap_head#35 (byte*) heap_head#33 
-Alias (word*) SQUARES#23 = (word*) SQUARES#29 (word*) SQUARES#27 
+Alias (byte) NUM_SQUARES#18 = (byte) NUM_SQUARES#23 (byte) NUM_SQUARES#21 
+Alias (byte*) heap_head#28 = (byte*) heap_head#36 (byte*) heap_head#34 
+Alias (word*) SQUARES#23 = (word*) SQUARES#30 (word*) SQUARES#28 
 Alias (byte*) SCREEN_DIST#10 = (byte*) SCREEN_DIST#9 (byte*) SCREEN_DIST#5 
 Alias (byte*) SCREEN_ANGLE#6 = (byte*) SCREEN_ANGLE#8 (byte*) SCREEN_ANGLE#9 
 Alias (byte) NUM_SQUARES#10 = (byte) NUM_SQUARES#2 
@@ -2140,17 +2157,17 @@ Alias (word) atan2_16::return#2 = (word) atan2_16::return#4
 Alias (word) init_angle_screen::angle_w#0 = (word~) init_angle_screen::$10 
 Alias (byte) init_angle_screen::ang_w#0 = (byte~) init_angle_screen::$12 
 Alias (byte*) init_dist_screen::screen#1 = (byte*) init_dist_screen::screen#2 (byte*) init_dist_screen::screen_topline#0 
-Alias (byte) NUM_SQUARES#3 = (byte) NUM_SQUARES#40 
+Alias (byte) NUM_SQUARES#3 = (byte) NUM_SQUARES#42 
 Alias (byte*) heap_head#20 = (byte*) heap_head#9 
 Alias (word*) SQUARES#14 = (word*) SQUARES#5 
 Alias (byte*) init_dist_screen::screen_bottomline#0 = (byte*~) init_dist_screen::$1 
 Alias (byte) init_dist_screen::y2#0 = (byte~) init_dist_screen::$2 (byte) init_dist_screen::y2#1 (byte) init_dist_screen::y2#2 
-Alias (word*) SQUARES#30 = (word*) SQUARES#40 (word*) SQUARES#31 
+Alias (word*) SQUARES#31 = (word*) SQUARES#41 (word*) SQUARES#32 
 Alias (byte*) init_dist_screen::screen_topline#11 = (byte*) init_dist_screen::screen_topline#14 (byte*) init_dist_screen::screen_topline#12 
 Alias (byte*) init_dist_screen::screen_bottomline#11 = (byte*) init_dist_screen::screen_bottomline#14 (byte*) init_dist_screen::screen_bottomline#12 
 Alias (byte) init_dist_screen::y#10 = (byte) init_dist_screen::y#9 (byte) init_dist_screen::y#2 
-Alias (byte) NUM_SQUARES#37 = (byte) NUM_SQUARES#39 (byte) NUM_SQUARES#38 
-Alias (byte*) heap_head#45 = (byte*) heap_head#48 (byte*) heap_head#46 
+Alias (byte) NUM_SQUARES#39 = (byte) NUM_SQUARES#41 (byte) NUM_SQUARES#40 
+Alias (byte*) heap_head#46 = (byte*) heap_head#49 (byte*) heap_head#47 
 Alias (byte~) init_dist_screen::$7 = (byte~) init_dist_screen::$6 
 Alias (byte~) init_dist_screen::$5 = (byte~) init_dist_screen::$4 
 Alias (byte) init_dist_screen::yd#0 = (byte~) init_dist_screen::$8 
@@ -2158,33 +2175,33 @@ Alias (word) sqr::return#2 = (word) sqr::return#5
 Alias (byte*) init_dist_screen::screen_topline#6 = (byte*) init_dist_screen::screen_topline#8 
 Alias (byte*) init_dist_screen::screen_bottomline#6 = (byte*) init_dist_screen::screen_bottomline#8 
 Alias (byte) init_dist_screen::y#5 = (byte) init_dist_screen::y#7 
-Alias (byte) NUM_SQUARES#29 = (byte) NUM_SQUARES#35 
-Alias (byte*) heap_head#40 = (byte*) heap_head#43 
-Alias (word*) SQUARES#19 = (word*) SQUARES#41 
+Alias (byte) NUM_SQUARES#31 = (byte) NUM_SQUARES#37 
+Alias (byte*) heap_head#41 = (byte*) heap_head#44 
+Alias (word*) SQUARES#19 = (word*) SQUARES#42 
 Alias (word) init_dist_screen::yds#0 = (word~) init_dist_screen::$9 
 Alias (byte) init_dist_screen::x#2 = (byte) init_dist_screen::x#3 (byte) init_dist_screen::x#7 (byte) init_dist_screen::x#8 
-Alias (word*) SQUARES#15 = (word*) SQUARES#43 (word*) SQUARES#32 (word*) SQUARES#25 (word*) SQUARES#33 (word*) SQUARES#34 (word*) SQUARES#6 
+Alias (word*) SQUARES#15 = (word*) SQUARES#44 (word*) SQUARES#33 (word*) SQUARES#25 (word*) SQUARES#34 (word*) SQUARES#35 (word*) SQUARES#6 
 Alias (word) init_dist_screen::yds#3 = (word) init_dist_screen::yds#5 (word) init_dist_screen::yds#6 (word) init_dist_screen::yds#4 
-Alias (byte) NUM_SQUARES#11 = (byte) NUM_SQUARES#36 (byte) NUM_SQUARES#22 (byte) NUM_SQUARES#17 (byte) NUM_SQUARES#31 (byte) NUM_SQUARES#32 (byte) NUM_SQUARES#4 
+Alias (byte) NUM_SQUARES#11 = (byte) NUM_SQUARES#38 (byte) NUM_SQUARES#24 (byte) NUM_SQUARES#19 (byte) NUM_SQUARES#33 (byte) NUM_SQUARES#34 (byte) NUM_SQUARES#4 
 Alias (byte*) init_dist_screen::screen_topline#10 = (byte*) init_dist_screen::screen_topline#13 (byte*) init_dist_screen::screen_topline#4 (byte*) init_dist_screen::screen_topline#2 (byte*) init_dist_screen::screen_topline#9 
 Alias (byte*) init_dist_screen::screen_bottomline#10 = (byte*) init_dist_screen::screen_bottomline#13 (byte*) init_dist_screen::screen_bottomline#4 (byte*) init_dist_screen::screen_bottomline#2 (byte*) init_dist_screen::screen_bottomline#9 
 Alias (byte) init_dist_screen::xb#5 = (byte) init_dist_screen::xb#7 (byte) init_dist_screen::xb#8 (byte) init_dist_screen::xb#6 
 Alias (byte) init_dist_screen::y#12 = (byte) init_dist_screen::y#14 (byte) init_dist_screen::y#4 (byte) init_dist_screen::y#3 (byte) init_dist_screen::y#13 
-Alias (byte*) heap_head#10 = (byte*) heap_head#51 (byte*) heap_head#36 (byte*) heap_head#30 (byte*) heap_head#49 (byte*) heap_head#50 (byte*) heap_head#21 
+Alias (byte*) heap_head#10 = (byte*) heap_head#52 (byte*) heap_head#37 (byte*) heap_head#30 (byte*) heap_head#50 (byte*) heap_head#51 (byte*) heap_head#21 
 Alias (byte) init_dist_screen::x2#0 = (byte~) init_dist_screen::$11 (byte) init_dist_screen::x2#1 (byte) init_dist_screen::x2#2 
 Alias (byte~) init_dist_screen::$16 = (byte~) init_dist_screen::$15 
 Alias (byte~) init_dist_screen::$14 = (byte~) init_dist_screen::$13 
 Alias (byte) init_dist_screen::xd#0 = (byte~) init_dist_screen::$17 
 Alias (word) sqr::return#3 = (word) sqr::return#6 
 Alias (word) init_dist_screen::yds#1 = (word) init_dist_screen::yds#2 (word) init_dist_screen::yds#7 
-Alias (word*) SQUARES#18 = (word*) SQUARES#20 (word*) SQUARES#42 
-Alias (byte) NUM_SQUARES#13 = (byte) NUM_SQUARES#23 (byte) NUM_SQUARES#30 
+Alias (word*) SQUARES#18 = (word*) SQUARES#20 (word*) SQUARES#43 
+Alias (byte) NUM_SQUARES#15 = (byte) NUM_SQUARES#25 (byte) NUM_SQUARES#32 
 Alias (byte*) init_dist_screen::screen_topline#3 = (byte*) init_dist_screen::screen_topline#5 (byte*) init_dist_screen::screen_topline#7 
 Alias (byte) init_dist_screen::x#4 = (byte) init_dist_screen::x#5 (byte) init_dist_screen::x#6 
 Alias (byte*) init_dist_screen::screen_bottomline#3 = (byte*) init_dist_screen::screen_bottomline#5 (byte*) init_dist_screen::screen_bottomline#7 
 Alias (byte) init_dist_screen::xb#2 = (byte) init_dist_screen::xb#3 (byte) init_dist_screen::xb#4 
 Alias (byte) init_dist_screen::y#11 = (byte) init_dist_screen::y#8 (byte) init_dist_screen::y#6 
-Alias (byte*) heap_head#41 = (byte*) heap_head#44 (byte*) heap_head#47 
+Alias (byte*) heap_head#42 = (byte*) heap_head#45 (byte*) heap_head#48 
 Alias (word) init_dist_screen::xds#0 = (word~) init_dist_screen::$18 
 Alias (word) init_dist_screen::ds#0 = (word~) init_dist_screen::$19 
 Alias (byte) sqrt::return#2 = (byte) sqrt::return#4 
@@ -2208,35 +2225,36 @@ Alias (signed word) atan2_16::y#10 = (signed word) atan2_16::y#16 (signed word)
 Alias (signed word) atan2_16::y#4 = (signed word) atan2_16::y#5 
 Alias (byte*) main::dist#2 = (byte*) main::dist#3 
 Alias (byte*) main::angle#2 = (byte*) main::angle#3 
-Alias (byte) NUM_SQUARES#16 = (byte) NUM_SQUARES#26 
-Alias (byte*) heap_head#28 = (byte*) heap_head#37 
-Alias (word*) SQUARES#23 = (word*) SQUARES#37 
+Alias (byte) NUM_SQUARES#18 = (byte) NUM_SQUARES#28 
+Alias (byte*) heap_head#28 = (byte*) heap_head#38 
+Alias (word*) SQUARES#23 = (word*) SQUARES#38 
 Alias (byte*) SCREEN_DIST#10 = (byte*) SCREEN_DIST#11 
 Alias (byte*) SCREEN_ANGLE#10 = (byte*) SCREEN_ANGLE#6 
-Alias (word*) SQUARES#19 = (word*) SQUARES#30 
+Alias (word*) SQUARES#19 = (word*) SQUARES#31 
 Alias (byte*) init_dist_screen::screen_topline#11 = (byte*) init_dist_screen::screen_topline#6 
 Alias (byte*) init_dist_screen::screen_bottomline#11 = (byte*) init_dist_screen::screen_bottomline#6 
 Alias (byte) init_dist_screen::y#10 = (byte) init_dist_screen::y#5 
-Alias (byte) NUM_SQUARES#29 = (byte) NUM_SQUARES#37 
-Alias (byte*) heap_head#40 = (byte*) heap_head#45 
+Alias (byte) NUM_SQUARES#31 = (byte) NUM_SQUARES#39 
+Alias (byte*) heap_head#41 = (byte*) heap_head#46 
 Alias (word*) SQUARES#15 = (word*) SQUARES#18 
 Alias (word) init_dist_screen::yds#1 = (word) init_dist_screen::yds#3 
-Alias (byte) NUM_SQUARES#11 = (byte) NUM_SQUARES#13 
+Alias (byte) NUM_SQUARES#11 = (byte) NUM_SQUARES#15 
 Alias (byte*) init_dist_screen::screen_topline#10 = (byte*) init_dist_screen::screen_topline#3 
 Alias (byte) init_dist_screen::x#2 = (byte) init_dist_screen::x#4 
 Alias (byte*) init_dist_screen::screen_bottomline#10 = (byte*) init_dist_screen::screen_bottomline#3 
 Alias (byte) init_dist_screen::xb#2 = (byte) init_dist_screen::xb#5 
 Alias (byte) init_dist_screen::y#11 = (byte) init_dist_screen::y#12 
-Alias (byte*) heap_head#10 = (byte*) heap_head#41 
+Alias (byte*) heap_head#10 = (byte*) heap_head#42 
 Successful SSA optimization Pass2AliasElimination
 Alias candidate removed (phi-usage) (byte*) main::fill#2 = (byte*) main::fill#3 
 Identical Phi Values (byte) bsearch16u::num#7 (byte) bsearch16u::num#2
 Identical Phi Values (word*) bsearch16u::items#7 (word*) bsearch16u::items#1
 Identical Phi Values (word) bsearch16u::key#4 (word) bsearch16u::key#0
 Identical Phi Values (word) bsearch16u::key#1 (word) bsearch16u::key#4
-Identical Phi Values (byte) NUM_SQUARES#6 (byte) NUM_SQUARES#3
+Identical Phi Values (byte) NUM_SQUARES#14 (byte) NUM_SQUARES#3
 Identical Phi Values (byte*) heap_head#24 (byte*) heap_head#29
 Identical Phi Values (byte*) heap_head#14 (byte*) heap_head#1
+Identical Phi Values (byte) NUM_SQUARES#13 (byte) NUM_SQUARES#14
 Identical Phi Values (byte*) heap_head#15 (byte*) heap_head#14
 Identical Phi Values (word*) SQUARES#17 (word*) SQUARES#1
 Identical Phi Values (word) sqrt::val#1 (word) sqrt::val#0
@@ -2253,14 +2271,14 @@ Identical Phi Values (signed word) atan2_16::y#10 (signed word) atan2_16::y#19
 Identical Phi Values (byte*) heap_head#16 (byte*) heap_head#1
 Identical Phi Values (byte*) heap_head#17 (byte*) heap_head#1
 Identical Phi Values (byte*) SCREEN_DIST#1 (byte*) SCREEN_DIST#0
-Identical Phi Values (byte) NUM_SQUARES#14 (byte) NUM_SQUARES#0
+Identical Phi Values (byte) NUM_SQUARES#16 (byte) NUM_SQUARES#0
 Identical Phi Values (byte*) heap_head#26 (byte*) heap_head#17
 Identical Phi Values (word*) SQUARES#21 (word*) SQUARES#0
 Identical Phi Values (byte*) SCREEN_ANGLE#1 (byte*) SCREEN_ANGLE#0
 Identical Phi Values (byte) NUM_SQUARES#1 (byte) NUM_SQUARES#11
 Identical Phi Values (byte*) heap_head#18 (byte*) heap_head#10
 Identical Phi Values (word*) SQUARES#12 (word*) SQUARES#15
-Identical Phi Values (byte) NUM_SQUARES#16 (byte) NUM_SQUARES#15
+Identical Phi Values (byte) NUM_SQUARES#18 (byte) NUM_SQUARES#17
 Identical Phi Values (byte*) heap_head#28 (byte*) heap_head#27
 Identical Phi Values (word*) SQUARES#23 (word*) SQUARES#22
 Identical Phi Values (byte*) SCREEN_DIST#10 (byte*) SCREEN_DIST#2
@@ -2278,8 +2296,8 @@ Identical Phi Values (word*) SQUARES#14 (word*) SQUARES#17
 Identical Phi Values (byte*) init_dist_screen::screen_topline#10 (byte*) init_dist_screen::screen_topline#11
 Identical Phi Values (byte*) init_dist_screen::screen_bottomline#10 (byte*) init_dist_screen::screen_bottomline#11
 Identical Phi Values (byte) init_dist_screen::y#11 (byte) init_dist_screen::y#10
-Identical Phi Values (byte) NUM_SQUARES#11 (byte) NUM_SQUARES#29
-Identical Phi Values (byte*) heap_head#10 (byte*) heap_head#40
+Identical Phi Values (byte) NUM_SQUARES#11 (byte) NUM_SQUARES#31
+Identical Phi Values (byte*) heap_head#10 (byte*) heap_head#41
 Identical Phi Values (word*) SQUARES#15 (word*) SQUARES#19
 Identical Phi Values (word) init_dist_screen::yds#1 (word) init_dist_screen::yds#0
 Identical Phi Values (byte) NUM_SQUARES#12 (byte) NUM_SQUARES#10
@@ -2293,21 +2311,21 @@ Identical Phi Values (signed word) atan2_16::x#4 (signed word) atan2_16::x#17
 Identical Phi Values (signed word) atan2_16::y#4 (signed word) atan2_16::y#19
 Identical Phi Values (byte*) SCREEN_DIST#2 (byte*) SCREEN_DIST#0
 Identical Phi Values (byte*) SCREEN_ANGLE#2 (byte*) SCREEN_ANGLE#0
-Identical Phi Values (byte) NUM_SQUARES#15 (byte) NUM_SQUARES#29
-Identical Phi Values (byte*) heap_head#27 (byte*) heap_head#40
+Identical Phi Values (byte) NUM_SQUARES#17 (byte) NUM_SQUARES#31
+Identical Phi Values (byte*) heap_head#27 (byte*) heap_head#41
 Identical Phi Values (word*) SQUARES#22 (word*) SQUARES#19
-Identical Phi Values (byte) NUM_SQUARES#10 (byte) NUM_SQUARES#15
+Identical Phi Values (byte) NUM_SQUARES#10 (byte) NUM_SQUARES#17
 Identical Phi Values (byte*) heap_head#19 (byte*) heap_head#27
 Identical Phi Values (word*) SQUARES#13 (word*) SQUARES#22
 Identical Phi Values (word*) SQUARES#19 (word*) SQUARES#1
-Identical Phi Values (byte) NUM_SQUARES#29 (byte) NUM_SQUARES#3
-Identical Phi Values (byte*) heap_head#40 (byte*) heap_head#1
+Identical Phi Values (byte) NUM_SQUARES#31 (byte) NUM_SQUARES#3
+Identical Phi Values (byte*) heap_head#41 (byte*) heap_head#1
 Successful SSA optimization Pass2IdenticalPhiElimination
 Simple Condition (bool~) bsearch16u::$5 [13] if((byte) bsearch16u::num#3>(byte) 0) goto bsearch16u::@7
 Simple Condition (bool~) bsearch16u::$12 [25] if((signed word) bsearch16u::result#0!=(signed byte) 0) goto bsearch16u::@9
 Simple Condition (bool~) bsearch16u::$0 [28] if(*((word*) bsearch16u::items#2)<=(word) bsearch16u::key#0) goto bsearch16u::@1
 Simple Condition (bool~) bsearch16u::$14 [32] if((signed word) bsearch16u::result#0<=(signed byte) 0) goto bsearch16u::@10
-Simple Condition (bool~) init_squares::$5 [77] if((byte) init_squares::i#1!=rangelast(0,init_squares::$2)) goto init_squares::@1
+Simple Condition (bool~) init_squares::$2 [70] if((byte) init_squares::i#2<(byte) NUM_SQUARES#3) goto init_squares::@2
 Simple Condition (bool~) atan2_16::$0 [107] if((signed word) atan2_16::y#0>=(signed byte) 0) goto atan2_16::@1
 Simple Condition (bool~) atan2_16::$5 [116] if((signed word) atan2_16::x#0>=(signed byte) 0) goto atan2_16::@4
 Simple Condition (bool~) atan2_16::$17 [129] if((signed word) atan2_16::yi#3!=(signed byte) 0) goto atan2_16::@16
@@ -2397,21 +2415,9 @@ Finalized unsigned number type (byte) 1
 Finalized unsigned number type (byte) $d
 Successful SSA optimization PassNFinalizeNumberTypeConversions
 Constant right-side identified [24] (word) malloc::size#0 ← (const byte) NUM_SQUARES#3 * (const byte) SIZEOF_WORD
-Constant right-side identified [30] (byte~) init_squares::$2 ← (const byte) NUM_SQUARES#3 - (byte) 1
 Successful SSA optimization Pass2ConstantRValueConsolidation
 Constant (const word) malloc::size#0 = NUM_SQUARES#3*SIZEOF_WORD
-Constant (const byte) init_squares::$2 = NUM_SQUARES#3-1
 Successful SSA optimization Pass2ConstantIdentification
-Resolved ranged next value [37] init_squares::i#1 ← ++ init_squares::i#2 to ++
-Resolved ranged comparison value [38] if(init_squares::i#1!=rangelast(0,init_squares::$2)) goto init_squares::@1 to (const byte) init_squares::$2+(number) 1
-Adding number conversion cast (unumber) init_squares::$2+1 in if((byte) init_squares::i#1!=(const byte) init_squares::$2+(number) 1) goto init_squares::@1
-Adding number conversion cast (unumber) 1 in if((byte) init_squares::i#1!=(unumber)(const byte) init_squares::$2+(number) 1) goto init_squares::@1
-Successful SSA optimization PassNAddNumberTypeConversions
-Simplifying constant integer cast (const byte) init_squares::$2+(unumber)(number) 1
-Simplifying constant integer cast 1
-Successful SSA optimization PassNCastSimplification
-Finalized unsigned number type (byte) 1
-Successful SSA optimization PassNFinalizeNumberTypeConversions
 Inlining Noop Cast [3] (void*) malloc::return#0 ← (void*)(byte*) malloc::mem#0 keeping malloc::mem#0
 Inlining Noop Cast [10] (signed word~) bsearch16u::$8 ← (signed word)(word) bsearch16u::key#0 keeping bsearch16u::key#0
 Inlining Noop Cast [11] (signed word~) bsearch16u::$9 ← (signed word)*((word*) bsearch16u::pivot#0) keeping *(bsearch16u::pivot#0)
@@ -2427,7 +2433,7 @@ Inlining Noop Cast [123] (signed word) init_angle_screen::xw#0 ← (signed word)
 Inlining Noop Cast [126] (signed word) init_angle_screen::yw#0 ← (signed word)(word~) init_angle_screen::$8 keeping init_angle_screen::yw#0
 Successful SSA optimization Pass2NopCastInlining
 Rewriting multiplication to use shift [8] (byte~) bsearch16u::$16 ← (byte~) bsearch16u::$6 * (const byte) SIZEOF_WORD
-Rewriting multiplication to use shift [32] (byte~) init_squares::$3 ← (byte) init_squares::i#2 * (byte) 2
+Rewriting multiplication to use shift [33] (byte~) init_squares::$3 ← (byte) init_squares::i#2 * (byte) 2
 Rewriting multiplication to use shift [39] (byte~) sqr::$0 ← (byte) sqr::val#2 * (const byte) SIZEOF_WORD
 Rewriting division to use shift [48] (word~) sqrt::$1 ← (word~) sqrt::$3 / (const byte) SIZEOF_WORD
 Rewriting division to use shift [60] (word) atan2_16::angle#1 ← (word) atan2_16::angle#6 / (byte) 2
@@ -2476,10 +2482,8 @@ Constant inlined init_dist_screen::x#0 = (byte) 0
 Constant inlined init_squares::i#0 = (byte) 0
 Constant inlined main::min_fill#0 = (const byte*) SCREEN_FILL
 Constant inlined heap_head#0 = (const byte*) HEAP_TOP
-Constant inlined init_squares::$2 = (const byte) NUM_SQUARES#3-(byte) 1
 Successful SSA optimization Pass2ConstantInlining
 Added new block during phi lifting bsearch16u::@18(between bsearch16u::@9 and bsearch16u::@10)
-Added new block during phi lifting init_squares::@4(between init_squares::@1 and init_squares::@1)
 Added new block during phi lifting atan2_16::@34(between atan2_16::@27 and atan2_16::@15)
 Added new block during phi lifting atan2_16::@35(between atan2_16::@15 and atan2_16::@17)
 Added new block during phi lifting atan2_16::@36(between atan2_16::@27 and atan2_16::@17)
@@ -2510,7 +2514,7 @@ Calls in [sqrt] to bsearch16u:209
 Calls in [init_squares] to malloc:249 
 
 Created 48 initial phi equivalence classes
-Coalesced [6] heap_head#52 ← heap_head#1
+Coalesced [6] heap_head#53 ← heap_head#1
 Coalesced [21] main::dist#6 ← main::dist#0
 Coalesced [22] main::angle#6 ← main::angle#0
 Coalesced [27] main::min_dist_angle#9 ← main::dist_angle#0
@@ -2587,11 +2591,11 @@ Coalesced [240] bsearch16u::num#9 ← bsearch16u::num#0
 Coalesced [241] bsearch16u::items#11 ← bsearch16u::items#8
 Coalesced [242] bsearch16u::num#11 ← bsearch16u::num#3
 Coalesced (already) [243] bsearch16u::items#13 ← bsearch16u::items#2
-Coalesced (already) [248] heap_head#53 ← heap_head#1
-Coalesced [252] init_squares::squares#4 ← init_squares::squares#0
-Coalesced [262] init_squares::sqr#3 ← init_squares::sqr#1
-Coalesced [263] init_squares::squares#3 ← init_squares::squares#1
-Coalesced [264] init_squares::i#3 ← init_squares::i#1
+Coalesced (already) [248] heap_head#54 ← heap_head#1
+Coalesced [252] init_squares::squares#5 ← init_squares::squares#0
+Coalesced [262] init_squares::i#4 ← init_squares::i#1
+Coalesced [263] init_squares::sqr#4 ← init_squares::sqr#1
+Coalesced [264] init_squares::squares#4 ← init_squares::squares#1
 Not coalescing [267] heap_head#1 ← malloc::mem#0
 Coalesced down to 38 phi equivalence classes
 Culled Empty Block (label) @5
@@ -2609,7 +2613,6 @@ Culled Empty Block (label) atan2_16::@37
 Culled Empty Block (label) init_dist_screen::@23
 Culled Empty Block (label) bsearch16u::@1
 Culled Empty Block (label) bsearch16u::@18
-Culled Empty Block (label) init_squares::@4
 Renumbering block @18 to @1
 Renumbering block @21 to @2
 Renumbering block @22 to @3
@@ -2623,7 +2626,7 @@ Renumbering block bsearch16u::@9 to bsearch16u::@6
 Renumbering block bsearch16u::@10 to bsearch16u::@7
 Renumbering block bsearch16u::@13 to bsearch16u::@8
 Renumbering block bsearch16u::@15 to bsearch16u::@9
-Renumbering block init_squares::@3 to init_squares::@2
+Renumbering block init_squares::@7 to init_squares::@3
 Renumbering block sqrt::@2 to sqrt::@1
 Renumbering block atan2_16::@13 to atan2_16::@9
 Renumbering block atan2_16::@15 to atan2_16::@10
@@ -3041,26 +3044,28 @@ sqr::@return: scope:[sqr]  from sqr
 init_squares: scope:[init_squares]  from init_dist_screen
   [177] phi()
   [178] call malloc 
-  to:init_squares::@2
-init_squares::@2: scope:[init_squares]  from init_squares
+  to:init_squares::@3
+init_squares::@3: scope:[init_squares]  from init_squares
   [179] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0
   [180] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1
   to:init_squares::@1
-init_squares::@1: scope:[init_squares]  from init_squares::@1 init_squares::@2
-  [181] (byte) init_squares::i#2 ← phi( init_squares::@1/(byte) init_squares::i#1 init_squares::@2/(byte) 0 )
-  [181] (word*) init_squares::squares#2 ← phi( init_squares::@1/(word*) init_squares::squares#1 init_squares::@2/(word*) init_squares::squares#0 )
-  [181] (word) init_squares::sqr#2 ← phi( init_squares::@1/(word) init_squares::sqr#1 init_squares::@2/(word) 0 )
-  [182] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
-  [183] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
-  [184] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1
-  [185] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
-  [186] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4
-  [187] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2
-  [188] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1
+init_squares::@1: scope:[init_squares]  from init_squares::@2 init_squares::@3
+  [181] (word*) init_squares::squares#2 ← phi( init_squares::@2/(word*) init_squares::squares#1 init_squares::@3/(word*) init_squares::squares#0 )
+  [181] (word) init_squares::sqr#2 ← phi( init_squares::@2/(word) init_squares::sqr#1 init_squares::@3/(word) 0 )
+  [181] (byte) init_squares::i#2 ← phi( init_squares::@2/(byte) init_squares::i#1 init_squares::@3/(byte) 0 )
+  [182] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2
   to:init_squares::@return
 init_squares::@return: scope:[init_squares]  from init_squares::@1
-  [189] return 
+  [183] return 
   to:@return
+init_squares::@2: scope:[init_squares]  from init_squares::@1
+  [184] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2
+  [185] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD
+  [186] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1
+  [187] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1
+  [188] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4
+  [189] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2
+  to:init_squares::@1
 
 (void*()) malloc((word) malloc::size)
 malloc: scope:[malloc]  from @1 @3 init_squares
@@ -3243,15 +3248,15 @@ VARIABLE REGISTER WEIGHTS
 (byte~) init_squares::$3 22.0
 (byte~) init_squares::$4 22.0
 (byte) init_squares::i
-(byte) init_squares::i#1 16.5
-(byte) init_squares::i#2 5.5
+(byte) init_squares::i#1 22.0
+(byte) init_squares::i#2 6.285714285714286
 (word) init_squares::sqr
-(word) init_squares::sqr#1 7.333333333333333
-(word) init_squares::sqr#2 6.6000000000000005
+(word) init_squares::sqr#1 11.0
+(word) init_squares::sqr#2 5.5
 (word*) init_squares::squares
 (word*) init_squares::squares#0 4.0
-(word*) init_squares::squares#1 3.6666666666666665
-(word*) init_squares::squares#2 17.5
+(word*) init_squares::squares#1 4.4
+(word*) init_squares::squares#2 11.666666666666666
 (void()) main()
 (byte*) main::angle
 (byte*) main::angle#0 22.0
@@ -3334,9 +3339,9 @@ Initial phi equivalence classes
 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 ]
 [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ]
 [ sqr::val#2 sqr::val#1 sqr::val#0 ]
+[ init_squares::i#2 init_squares::i#1 ]
 [ init_squares::sqr#2 init_squares::sqr#1 ]
 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ]
-[ init_squares::i#2 init_squares::i#1 ]
 [ heap_head#12 heap_head#1 ]
 [ malloc::size#3 ]
 Added variable SCREEN_DIST#0 to live range equivalence class [ SCREEN_DIST#0 ]
@@ -3414,9 +3419,9 @@ Complete equivalence classes
 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 ]
 [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ]
 [ sqr::val#2 sqr::val#1 sqr::val#0 ]
+[ init_squares::i#2 init_squares::i#1 ]
 [ init_squares::sqr#2 init_squares::sqr#1 ]
 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ]
-[ init_squares::i#2 init_squares::i#1 ]
 [ heap_head#12 heap_head#1 ]
 [ malloc::size#3 ]
 [ SCREEN_DIST#0 ]
@@ -3493,9 +3498,9 @@ Allocated zp[1]:43 [ init_dist_screen::xd#0 init_dist_screen::$16 init_dist_scre
 Allocated zp[2]:44 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 ]
 Allocated zp[1]:46 [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ]
 Allocated zp[1]:47 [ sqr::val#2 sqr::val#1 sqr::val#0 ]
-Allocated zp[2]:48 [ init_squares::sqr#2 init_squares::sqr#1 ]
-Allocated zp[2]:50 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ]
-Allocated zp[1]:52 [ init_squares::i#2 init_squares::i#1 ]
+Allocated zp[1]:48 [ init_squares::i#2 init_squares::i#1 ]
+Allocated zp[2]:49 [ init_squares::sqr#2 init_squares::sqr#1 ]
+Allocated zp[2]:51 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ]
 Allocated zp[2]:53 [ heap_head#12 heap_head#1 ]
 Allocated zp[2]:55 [ malloc::size#3 ]
 Allocated zp[2]:57 [ SCREEN_DIST#0 ]
@@ -4845,9 +4850,9 @@ sqr: {
 init_squares: {
     .label __3 = $7c
     .label __4 = $7d
-    .label squares = $32
-    .label sqr = $30
-    .label i = $34
+    .label squares = $33
+    .label sqr = $31
+    .label i = $30
     // [178] call malloc 
     // [190] phi from init_squares to malloc [phi:init_squares->malloc]
   malloc_from_init_squares:
@@ -4858,9 +4863,9 @@ init_squares: {
     sta.z malloc.size+1
     // [190] phi (byte*) heap_head#12 = (byte*) heap_head#1 [phi:init_squares->malloc#1] -- register_copy 
     jsr malloc
-    jmp __b2
-    // init_squares::@2
-  __b2:
+    jmp __b3
+    // init_squares::@3
+  __b3:
     // [179] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0 -- pvoz1=pvoz2 
     lda.z malloc.mem
     sta.z SQUARES
@@ -4871,34 +4876,39 @@ init_squares: {
     sta.z squares
     lda.z SQUARES+1
     sta.z squares+1
-    // [181] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
-  __b1_from___b2:
-    // [181] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@2->init_squares::@1#0] -- vbuz1=vbuc1 
-    lda #0
-    sta.z i
-    // [181] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
-    // [181] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@2->init_squares::@1#2] -- vwuz1=vwuc1 
+    // [181] phi from init_squares::@3 to init_squares::@1 [phi:init_squares::@3->init_squares::@1]
+  __b1_from___b3:
+    // [181] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@3->init_squares::@1#0] -- register_copy 
+    // [181] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@3->init_squares::@1#1] -- vwuz1=vwuc1 
     lda #<0
     sta.z sqr
     lda #>0
     sta.z sqr+1
-    jmp __b1
-    // [181] phi from init_squares::@1 to init_squares::@1 [phi:init_squares::@1->init_squares::@1]
-  __b1_from___b1:
-    // [181] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@1->init_squares::@1#0] -- register_copy 
-    // [181] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@1->init_squares::@1#1] -- register_copy 
-    // [181] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@1->init_squares::@1#2] -- register_copy 
+    // [181] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@3->init_squares::@1#2] -- vbuz1=vbuc1 
+    lda #0
+    sta.z i
     jmp __b1
     // init_squares::@1
   __b1:
-    // [182] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
+    // [182] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2 -- vbuz1_lt_vbuc1_then_la1 
+    lda.z i
+    cmp #NUM_SQUARES
+    bcc __b2
+    jmp __breturn
+    // init_squares::@return
+  __breturn:
+    // [183] return 
+    rts
+    // init_squares::@2
+  __b2:
+    // [184] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
     ldy #0
     lda.z sqr
     sta (squares),y
     iny
     lda.z sqr+1
     sta (squares),y
-    // [183] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
+    // [185] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
     lda #SIZEOF_WORD
     clc
     adc.z squares
@@ -4906,15 +4916,15 @@ init_squares: {
     bcc !+
     inc.z squares+1
   !:
-    // [184] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuz1=vbuz2_rol_1 
+    // [186] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuz1=vbuz2_rol_1 
     lda.z i
     asl
     sta.z __3
-    // [185] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuz1=vbuz2_plus_1 
+    // [187] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuz1=vbuz2_plus_1 
     ldy.z __3
     iny
     sty.z __4
-    // [186] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuz2 
+    // [188] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuz2 
     lda.z __4
     clc
     adc.z sqr
@@ -4922,17 +4932,14 @@ init_squares: {
     bcc !+
     inc.z sqr+1
   !:
-    // [187] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuz1=_inc_vbuz1 
+    // [189] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuz1=_inc_vbuz1 
     inc.z i
-    // [188] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1 -- vbuz1_neq_vbuc1_then_la1 
-    lda #NUM_SQUARES-1+1
-    cmp.z i
-    bne __b1_from___b1
-    jmp __breturn
-    // init_squares::@return
-  __breturn:
-    // [189] return 
-    rts
+    // [181] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
+  __b1_from___b2:
+    // [181] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@2->init_squares::@1#0] -- register_copy 
+    // [181] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
+    // [181] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@2->init_squares::@1#2] -- register_copy 
+    jmp __b1
 }
   // malloc
 // Allocates a block of size bytes of memory, returning a pointer to the beginning of the block.
@@ -5085,12 +5092,12 @@ Statement [174] (byte~) sqr::$0 ← (byte) sqr::val#2 << (byte) 1 [ SQUARES#1 sq
 Statement [175] (word) sqr::return#0 ← *((word*)(void*) SQUARES#1 + (byte~) sqr::$0) [ sqr::return#0 SQUARES#1 ] ( main:7::init_dist_screen:10::sqr:114 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 sqr::return#0 SQUARES#1 ] main:7::init_dist_screen:10::sqr:129 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 sqr::return#0 SQUARES#1 ] ) always clobbers reg byte a reg byte y 
 Statement [179] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0 [ SQUARES#1 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 ] ) always clobbers reg byte a 
 Statement [180] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1 [ SQUARES#1 init_squares::squares#0 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::squares#0 ] ) always clobbers reg byte a 
-Statement [182] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ) always clobbers reg byte a reg byte y 
-Removing always clobbered register reg byte a as potential for zp[1]:52 [ init_squares::i#2 init_squares::i#1 ]
-Removing always clobbered register reg byte y as potential for zp[1]:52 [ init_squares::i#2 init_squares::i#1 ]
-Statement [183] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ) always clobbers reg byte a 
-Statement [184] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
-Statement [186] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [184] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ) always clobbers reg byte a reg byte y 
+Removing always clobbered register reg byte a as potential for zp[1]:48 [ init_squares::i#2 init_squares::i#1 ]
+Removing always clobbered register reg byte y as potential for zp[1]:48 [ init_squares::i#2 init_squares::i#1 ]
+Statement [185] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [186] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
+Statement [188] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
 Statement [191] (byte*) malloc::mem#0 ← (byte*) heap_head#12 - (word) malloc::size#3 [ malloc::mem#0 ] ( malloc:2 [ malloc::mem#0 ] malloc:4 [ malloc::mem#0 ] main:7::init_dist_screen:10::init_squares:106::malloc:178 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 malloc::mem#0 ] ) always clobbers reg byte a 
 Statement [192] (byte*) heap_head#1 ← (byte*) malloc::mem#0 [ malloc::mem#0 heap_head#1 ] ( malloc:2 [ malloc::mem#0 heap_head#1 ] malloc:4 [ malloc::mem#0 heap_head#1 ] main:7::init_dist_screen:10::init_squares:106::malloc:178 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 malloc::mem#0 heap_head#1 ] ) always clobbers reg byte a 
 Statement [3] (void*) SCREEN_DIST#0 ← (void*)(byte*) malloc::mem#0 [ SCREEN_DIST#0 heap_head#1 ] (  [ SCREEN_DIST#0 heap_head#1 ] ) always clobbers reg byte a 
@@ -5197,10 +5204,10 @@ Statement [174] (byte~) sqr::$0 ← (byte) sqr::val#2 << (byte) 1 [ SQUARES#1 sq
 Statement [175] (word) sqr::return#0 ← *((word*)(void*) SQUARES#1 + (byte~) sqr::$0) [ sqr::return#0 SQUARES#1 ] ( main:7::init_dist_screen:10::sqr:114 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 sqr::return#0 SQUARES#1 ] main:7::init_dist_screen:10::sqr:129 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 sqr::return#0 SQUARES#1 ] ) always clobbers reg byte a reg byte y 
 Statement [179] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0 [ SQUARES#1 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 ] ) always clobbers reg byte a 
 Statement [180] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1 [ SQUARES#1 init_squares::squares#0 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::squares#0 ] ) always clobbers reg byte a 
-Statement [182] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ) always clobbers reg byte a reg byte y 
-Statement [183] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ) always clobbers reg byte a 
-Statement [184] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
-Statement [186] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [184] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ) always clobbers reg byte a reg byte y 
+Statement [185] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [186] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
+Statement [188] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
 Statement [191] (byte*) malloc::mem#0 ← (byte*) heap_head#12 - (word) malloc::size#3 [ malloc::mem#0 ] ( malloc:2 [ malloc::mem#0 ] malloc:4 [ malloc::mem#0 ] main:7::init_dist_screen:10::init_squares:106::malloc:178 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 malloc::mem#0 ] ) always clobbers reg byte a 
 Statement [192] (byte*) heap_head#1 ← (byte*) malloc::mem#0 [ malloc::mem#0 heap_head#1 ] ( malloc:2 [ malloc::mem#0 heap_head#1 ] malloc:4 [ malloc::mem#0 heap_head#1 ] main:7::init_dist_screen:10::init_squares:106::malloc:178 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 malloc::mem#0 heap_head#1 ] ) always clobbers reg byte a 
 Statement [3] (void*) SCREEN_DIST#0 ← (void*)(byte*) malloc::mem#0 [ SCREEN_DIST#0 heap_head#1 ] (  [ SCREEN_DIST#0 heap_head#1 ] ) always clobbers reg byte a 
@@ -5306,10 +5313,10 @@ Statement [174] (byte~) sqr::$0 ← (byte) sqr::val#2 << (byte) 1 [ SQUARES#1 sq
 Statement [175] (word) sqr::return#0 ← *((word*)(void*) SQUARES#1 + (byte~) sqr::$0) [ sqr::return#0 SQUARES#1 ] ( main:7::init_dist_screen:10::sqr:114 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 sqr::return#0 SQUARES#1 ] main:7::init_dist_screen:10::sqr:129 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::y#10 init_dist_screen::screen_topline#11 init_dist_screen::screen_bottomline#11 init_dist_screen::yds#0 init_dist_screen::x#2 init_dist_screen::xb#2 sqr::return#0 SQUARES#1 ] ) always clobbers reg byte a reg byte y 
 Statement [179] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0 [ SQUARES#1 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 ] ) always clobbers reg byte a 
 Statement [180] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1 [ SQUARES#1 init_squares::squares#0 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::squares#0 ] ) always clobbers reg byte a 
-Statement [182] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::squares#2 init_squares::i#2 ] ) always clobbers reg byte a reg byte y 
-Statement [183] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 ] ) always clobbers reg byte a 
-Statement [184] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::sqr#2 init_squares::i#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
-Statement [186] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [184] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#2 ] ) always clobbers reg byte a reg byte y 
+Statement [185] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 ] ) always clobbers reg byte a 
+Statement [186] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 [ SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#2 init_squares::squares#1 init_squares::$3 ] ) always clobbers reg byte a 
+Statement [188] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 [ SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ( main:7::init_dist_screen:10::init_squares:106 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 SQUARES#1 init_squares::i#2 init_squares::sqr#1 init_squares::squares#1 ] ) always clobbers reg byte a 
 Statement [191] (byte*) malloc::mem#0 ← (byte*) heap_head#12 - (word) malloc::size#3 [ malloc::mem#0 ] ( malloc:2 [ malloc::mem#0 ] malloc:4 [ malloc::mem#0 ] main:7::init_dist_screen:10::init_squares:106::malloc:178 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 malloc::mem#0 ] ) always clobbers reg byte a 
 Statement [192] (byte*) heap_head#1 ← (byte*) malloc::mem#0 [ malloc::mem#0 heap_head#1 ] ( malloc:2 [ malloc::mem#0 heap_head#1 ] malloc:4 [ malloc::mem#0 heap_head#1 ] main:7::init_dist_screen:10::init_squares:106::malloc:178 [ SCREEN_DIST#0 SCREEN_ANGLE#0 init_dist_screen::screen#0 malloc::mem#0 heap_head#1 ] ) always clobbers reg byte a 
 Potential registers zp[2]:2 [ main::fill#2 main::fill#1 ] : zp[2]:2 , 
@@ -5341,9 +5348,9 @@ Potential registers zp[1]:43 [ init_dist_screen::xd#0 init_dist_screen::$16 init
 Potential registers zp[2]:44 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 ] : zp[2]:44 , 
 Potential registers zp[1]:46 [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ] : zp[1]:46 , reg byte x , 
 Potential registers zp[1]:47 [ sqr::val#2 sqr::val#1 sqr::val#0 ] : zp[1]:47 , reg byte a , reg byte x , reg byte y , 
-Potential registers zp[2]:48 [ init_squares::sqr#2 init_squares::sqr#1 ] : zp[2]:48 , 
-Potential registers zp[2]:50 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] : zp[2]:50 , 
-Potential registers zp[1]:52 [ init_squares::i#2 init_squares::i#1 ] : zp[1]:52 , reg byte x , 
+Potential registers zp[1]:48 [ init_squares::i#2 init_squares::i#1 ] : zp[1]:48 , reg byte x , 
+Potential registers zp[2]:49 [ init_squares::sqr#2 init_squares::sqr#1 ] : zp[2]:49 , 
+Potential registers zp[2]:51 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] : zp[2]:51 , 
 Potential registers zp[2]:53 [ heap_head#12 heap_head#1 ] : zp[2]:53 , 
 Potential registers zp[2]:55 [ malloc::size#3 ] : zp[2]:55 , 
 Potential registers zp[2]:57 [ SCREEN_DIST#0 ] : zp[2]:57 , 
@@ -5400,7 +5407,7 @@ Uplift Scope [init_dist_screen] 707: zp[1]:43 [ init_dist_screen::xd#0 init_dist
 Uplift Scope [main] 588: zp[2]:12 [ main::min_dist_angle#3 main::min_dist_angle#7 main::min_dist_angle#8 main::dist_angle#0 ] 311.79: zp[2]:10 [ main::min_fill#5 main::min_fill#2 main::min_fill#10 ] 303: zp[2]:8 [ main::min_dist_angle#2 main::min_dist_angle#6 ] 141.4: zp[2]:2 [ main::fill#2 main::fill#1 ] 107.39: zp[2]:6 [ main::angle#2 main::angle#0 main::angle#1 ] 90.65: zp[2]:4 [ main::dist#2 main::dist#0 main::dist#1 ] 
 Uplift Scope [sqr] 338: zp[1]:47 [ sqr::val#2 sqr::val#1 sqr::val#0 ] 202: zp[2]:92 [ sqr::return#3 ] 28.5: zp[2]:120 [ sqr::return#0 ] 22: zp[2]:87 [ sqr::return#2 ] 4: zp[1]:119 [ sqr::$0 ] 
 Uplift Scope [sqrt] 202: zp[1]:100 [ sqrt::return#2 ] 103: zp[2]:98 [ sqrt::val#0 ] 34.33: zp[1]:112 [ sqrt::return#0 ] 4: zp[2]:106 [ sqrt::found#0 ] 4: zp[2]:108 [ sqrt::$3 ] 2: zp[2]:110 [ sqrt::$1 ] 
-Uplift Scope [init_squares] 25.17: zp[2]:50 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] 22: zp[1]:52 [ init_squares::i#2 init_squares::i#1 ] 22: zp[1]:124 [ init_squares::$3 ] 22: zp[1]:125 [ init_squares::$4 ] 13.93: zp[2]:48 [ init_squares::sqr#2 init_squares::sqr#1 ] 
+Uplift Scope [init_squares] 28.29: zp[1]:48 [ init_squares::i#2 init_squares::i#1 ] 22: zp[1]:124 [ init_squares::$3 ] 22: zp[1]:125 [ init_squares::$4 ] 20.07: zp[2]:51 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] 16.5: zp[2]:49 [ init_squares::sqr#2 init_squares::sqr#1 ] 
 Uplift Scope [] 6.6: zp[2]:53 [ heap_head#12 heap_head#1 ] 0.09: zp[2]:59 [ SCREEN_ANGLE#0 ] 0.08: zp[2]:57 [ SCREEN_DIST#0 ] 0.03: zp[2]:122 [ SQUARES#1 ] 
 Uplift Scope [malloc] 2: zp[2]:55 [ malloc::size#3 ] 0.67: zp[2]:126 [ malloc::mem#0 ] 
 Uplift Scope [RADIX] 
@@ -5415,7 +5422,7 @@ Limited combination testing to 100 combinations of 6144 possible.
 Uplifting [main] best 1223486 combination zp[2]:12 [ main::min_dist_angle#3 main::min_dist_angle#7 main::min_dist_angle#8 main::dist_angle#0 ] zp[2]:10 [ main::min_fill#5 main::min_fill#2 main::min_fill#10 ] zp[2]:8 [ main::min_dist_angle#2 main::min_dist_angle#6 ] zp[2]:2 [ main::fill#2 main::fill#1 ] zp[2]:6 [ main::angle#2 main::angle#0 main::angle#1 ] zp[2]:4 [ main::dist#2 main::dist#0 main::dist#1 ] 
 Uplifting [sqr] best 1223149 combination reg byte a [ sqr::val#2 sqr::val#1 sqr::val#0 ] zp[2]:92 [ sqr::return#3 ] zp[2]:120 [ sqr::return#0 ] zp[2]:87 [ sqr::return#2 ] reg byte a [ sqr::$0 ] 
 Uplifting [sqrt] best 1222246 combination reg byte a [ sqrt::return#2 ] zp[2]:98 [ sqrt::val#0 ] reg byte a [ sqrt::return#0 ] zp[2]:106 [ sqrt::found#0 ] zp[2]:108 [ sqrt::$3 ] zp[2]:110 [ sqrt::$1 ] 
-Uplifting [init_squares] best 1222046 combination zp[2]:50 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] reg byte x [ init_squares::i#2 init_squares::i#1 ] reg byte a [ init_squares::$3 ] reg byte a [ init_squares::$4 ] zp[2]:48 [ init_squares::sqr#2 init_squares::sqr#1 ] 
+Uplifting [init_squares] best 1222046 combination reg byte x [ init_squares::i#2 init_squares::i#1 ] reg byte a [ init_squares::$3 ] reg byte a [ init_squares::$4 ] zp[2]:51 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] zp[2]:49 [ init_squares::sqr#2 init_squares::sqr#1 ] 
 Uplifting [] best 1222046 combination zp[2]:53 [ heap_head#12 heap_head#1 ] zp[2]:59 [ SCREEN_ANGLE#0 ] zp[2]:57 [ SCREEN_DIST#0 ] zp[2]:122 [ SQUARES#1 ] 
 Uplifting [malloc] best 1222046 combination zp[2]:55 [ malloc::size#3 ] zp[2]:126 [ malloc::mem#0 ] 
 Uplifting [RADIX] best 1222046 combination 
@@ -5472,12 +5479,12 @@ Coalescing zero page register [ zp[1]:35 [ init_dist_screen::y#10 init_dist_scre
 Coalescing zero page register [ zp[2]:36 [ init_dist_screen::screen_topline#11 init_dist_screen::screen#0 init_dist_screen::screen_topline#1 ] ] with [ zp[2]:33 [ atan2_16::xd#5 atan2_16::xd#3 atan2_16::xd#10 atan2_16::xd#1 atan2_16::xd#2 ] ]
 Coalescing zero page register [ zp[1]:41 [ init_dist_screen::x#2 init_dist_screen::x#1 ] ] with [ zp[1]:19 [ init_angle_screen::x#2 init_angle_screen::x#1 ] ]
 Coalescing zero page register [ zp[1]:42 [ init_dist_screen::xb#2 init_dist_screen::xb#1 ] ] with [ zp[1]:20 [ init_angle_screen::xb#2 init_angle_screen::xb#1 ] ]
-Coalescing zero page register [ zp[2]:48 [ init_squares::sqr#2 init_squares::sqr#1 ] ] with [ zp[2]:38 [ init_dist_screen::screen_bottomline#11 init_dist_screen::screen_bottomline#0 init_dist_screen::screen_bottomline#1 ] ]
-Coalescing zero page register [ zp[2]:50 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] ] with [ zp[2]:44 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 bsearch16u::return#3 sqrt::found#0 sqrt::$3 sqrt::$1 ] ]
+Coalescing zero page register [ zp[2]:49 [ init_squares::sqr#2 init_squares::sqr#1 ] ] with [ zp[2]:38 [ init_dist_screen::screen_bottomline#11 init_dist_screen::screen_bottomline#0 init_dist_screen::screen_bottomline#1 ] ]
+Coalescing zero page register [ zp[2]:51 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 ] ] with [ zp[2]:44 [ bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 bsearch16u::return#3 sqrt::found#0 sqrt::$3 sqrt::$1 ] ]
 Coalescing zero page register [ zp[2]:65 [ init_angle_screen::xw#0 atan2_16::x#0 ] ] with [ zp[2]:53 [ heap_head#12 heap_head#1 ] ]
 Coalescing zero page register [ zp[2]:68 [ init_angle_screen::yw#0 atan2_16::y#0 ] ] with [ zp[2]:55 [ malloc::size#3 malloc::mem#0 SQUARES#1 ] ]
-Coalescing zero page register [ zp[2]:48 [ init_squares::sqr#2 init_squares::sqr#1 init_dist_screen::screen_bottomline#11 init_dist_screen::screen_bottomline#0 init_dist_screen::screen_bottomline#1 ] ] with [ zp[2]:15 [ init_angle_screen::screen_topline#6 init_angle_screen::screen_topline#0 init_angle_screen::screen_topline#1 main::fill#2 main::fill#1 ] ]
-Coalescing zero page register [ zp[2]:50 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 bsearch16u::return#3 sqrt::found#0 sqrt::$3 sqrt::$1 ] ] with [ zp[2]:17 [ init_angle_screen::screen_bottomline#6 init_angle_screen::screen_bottomline#0 init_angle_screen::screen_bottomline#1 init_angle_screen::screen#0 main::dist#2 main::dist#0 main::dist#1 ] ]
+Coalescing zero page register [ zp[2]:49 [ init_squares::sqr#2 init_squares::sqr#1 init_dist_screen::screen_bottomline#11 init_dist_screen::screen_bottomline#0 init_dist_screen::screen_bottomline#1 ] ] with [ zp[2]:15 [ init_angle_screen::screen_topline#6 init_angle_screen::screen_topline#0 init_angle_screen::screen_topline#1 main::fill#2 main::fill#1 ] ]
+Coalescing zero page register [ zp[2]:51 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 bsearch16u::return#3 sqrt::found#0 sqrt::$3 sqrt::$1 ] ] with [ zp[2]:17 [ init_angle_screen::screen_bottomline#6 init_angle_screen::screen_bottomline#0 init_angle_screen::screen_bottomline#1 init_angle_screen::screen#0 main::dist#2 main::dist#0 main::dist#1 ] ]
 Coalescing zero page register [ zp[2]:87 [ sqr::return#2 init_dist_screen::yds#0 ] ] with [ zp[2]:21 [ atan2_16::yi#3 atan2_16::yi#8 atan2_16::yi#0 atan2_16::yi#16 atan2_16::$2 atan2_16::yi#1 atan2_16::yi#2 main::angle#2 main::angle#0 main::angle#1 ] ]
 Coalescing zero page register [ zp[2]:92 [ sqr::return#3 init_dist_screen::xds#0 sqr::return#0 init_dist_screen::ds#0 sqrt::val#0 bsearch16u::key#0 ] ] with [ zp[2]:23 [ atan2_16::xi#3 atan2_16::xi#8 atan2_16::xi#0 atan2_16::xi#13 atan2_16::$7 atan2_16::xi#1 atan2_16::xi#2 main::min_dist_angle#2 main::min_dist_angle#6 ] ]
 Coalescing zero page register [ zp[2]:115 [ bsearch16u::pivot#0 ] ] with [ zp[2]:26 [ atan2_16::angle#6 atan2_16::angle#12 atan2_16::angle#13 atan2_16::angle#2 atan2_16::angle#3 atan2_16::return#0 atan2_16::angle#5 atan2_16::angle#11 atan2_16::angle#1 atan2_16::angle#4 atan2_16::return#2 init_angle_screen::angle_w#0 init_angle_screen::$11 main::min_fill#5 main::min_fill#2 main::min_fill#10 ] ]
@@ -5486,8 +5493,8 @@ Allocated (was zp[1]:35) zp[1]:2 [ init_dist_screen::y#10 init_dist_screen::y#1
 Allocated (was zp[2]:36) zp[2]:3 [ init_dist_screen::screen_topline#11 init_dist_screen::screen#0 init_dist_screen::screen_topline#1 atan2_16::xd#5 atan2_16::xd#3 atan2_16::xd#10 atan2_16::xd#1 atan2_16::xd#2 ]
 Allocated (was zp[1]:41) zp[1]:5 [ init_dist_screen::x#2 init_dist_screen::x#1 init_angle_screen::x#2 init_angle_screen::x#1 ]
 Allocated (was zp[1]:42) zp[1]:6 [ init_dist_screen::xb#2 init_dist_screen::xb#1 init_angle_screen::xb#2 init_angle_screen::xb#1 ]
-Allocated (was zp[2]:48) zp[2]:7 [ init_squares::sqr#2 init_squares::sqr#1 init_dist_screen::screen_bottomline#11 init_dist_screen::screen_bottomline#0 init_dist_screen::screen_bottomline#1 init_angle_screen::screen_topline#6 init_angle_screen::screen_topline#0 init_angle_screen::screen_topline#1 main::fill#2 main::fill#1 ]
-Allocated (was zp[2]:50) zp[2]:9 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 bsearch16u::return#3 sqrt::found#0 sqrt::$3 sqrt::$1 init_angle_screen::screen_bottomline#6 init_angle_screen::screen_bottomline#0 init_angle_screen::screen_bottomline#1 init_angle_screen::screen#0 main::dist#2 main::dist#0 main::dist#1 ]
+Allocated (was zp[2]:49) zp[2]:7 [ init_squares::sqr#2 init_squares::sqr#1 init_dist_screen::screen_bottomline#11 init_dist_screen::screen_bottomline#0 init_dist_screen::screen_bottomline#1 init_angle_screen::screen_topline#6 init_angle_screen::screen_topline#0 init_angle_screen::screen_topline#1 main::fill#2 main::fill#1 ]
+Allocated (was zp[2]:51) zp[2]:9 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 bsearch16u::return#3 sqrt::found#0 sqrt::$3 sqrt::$1 init_angle_screen::screen_bottomline#6 init_angle_screen::screen_bottomline#0 init_angle_screen::screen_bottomline#1 init_angle_screen::screen#0 main::dist#2 main::dist#0 main::dist#1 ]
 Allocated (was zp[2]:57) zp[2]:11 [ SCREEN_DIST#0 ]
 Allocated (was zp[2]:59) zp[2]:13 [ SCREEN_ANGLE#0 ]
 Allocated (was zp[2]:65) zp[2]:15 [ init_angle_screen::xw#0 atan2_16::x#0 heap_head#12 heap_head#1 ]
@@ -6684,42 +6691,46 @@ init_squares: {
     sta.z malloc.size+1
     // [190] phi (byte*) heap_head#12 = (byte*) heap_head#1 [phi:init_squares->malloc#1] -- register_copy 
     jsr malloc
-    jmp __b2
-    // init_squares::@2
-  __b2:
+    jmp __b3
+    // init_squares::@3
+  __b3:
     // [179] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0
     // [180] (word*) init_squares::squares#0 ← (word*)(void*) SQUARES#1 -- pwuz1=pwuz2 
     lda.z SQUARES
     sta.z squares
     lda.z SQUARES+1
     sta.z squares+1
-    // [181] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
-  __b1_from___b2:
-    // [181] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@2->init_squares::@1#0] -- vbuxx=vbuc1 
-    ldx #0
-    // [181] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
-    // [181] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@2->init_squares::@1#2] -- vwuz1=vwuc1 
+    // [181] phi from init_squares::@3 to init_squares::@1 [phi:init_squares::@3->init_squares::@1]
+  __b1_from___b3:
+    // [181] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@3->init_squares::@1#0] -- register_copy 
+    // [181] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@3->init_squares::@1#1] -- vwuz1=vwuc1 
     lda #<0
     sta.z sqr
     lda #>0
     sta.z sqr+1
-    jmp __b1
-    // [181] phi from init_squares::@1 to init_squares::@1 [phi:init_squares::@1->init_squares::@1]
-  __b1_from___b1:
-    // [181] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@1->init_squares::@1#0] -- register_copy 
-    // [181] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@1->init_squares::@1#1] -- register_copy 
-    // [181] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@1->init_squares::@1#2] -- register_copy 
+    // [181] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@3->init_squares::@1#2] -- vbuxx=vbuc1 
+    ldx #0
     jmp __b1
     // init_squares::@1
   __b1:
-    // [182] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
+    // [182] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2 -- vbuxx_lt_vbuc1_then_la1 
+    cpx #NUM_SQUARES
+    bcc __b2
+    jmp __breturn
+    // init_squares::@return
+  __breturn:
+    // [183] return 
+    rts
+    // init_squares::@2
+  __b2:
+    // [184] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
     ldy #0
     lda.z sqr
     sta (squares),y
     iny
     lda.z sqr+1
     sta (squares),y
-    // [183] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
+    // [185] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
     lda #SIZEOF_WORD
     clc
     adc.z squares
@@ -6727,29 +6738,27 @@ init_squares: {
     bcc !+
     inc.z squares+1
   !:
-    // [184] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1 
+    // [186] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1 
     txa
     asl
-    // [185] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuaa=vbuaa_plus_1 
+    // [187] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuaa=vbuaa_plus_1 
     clc
     adc #1
-    // [186] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuaa 
+    // [188] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuaa 
     clc
     adc.z sqr
     sta.z sqr
     bcc !+
     inc.z sqr+1
   !:
-    // [187] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuxx=_inc_vbuxx 
+    // [189] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuxx=_inc_vbuxx 
     inx
-    // [188] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1 -- vbuxx_neq_vbuc1_then_la1 
-    cpx #NUM_SQUARES-1+1
-    bne __b1_from___b1
-    jmp __breturn
-    // init_squares::@return
-  __breturn:
-    // [189] return 
-    rts
+    // [181] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
+  __b1_from___b2:
+    // [181] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@2->init_squares::@1#0] -- register_copy 
+    // [181] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
+    // [181] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@2->init_squares::@1#2] -- register_copy 
+    jmp __b1
 }
   // malloc
 // Allocates a block of size bytes of memory, returning a pointer to the beginning of the block.
@@ -6843,7 +6852,7 @@ Removing instruction jmp __b8
 Removing instruction jmp __b9
 Removing instruction jmp __b7
 Removing instruction jmp __breturn
-Removing instruction jmp __b2
+Removing instruction jmp __b3
 Removing instruction jmp __b1
 Removing instruction jmp __breturn
 Removing instruction jmp __breturn
@@ -6858,8 +6867,8 @@ Replacing instruction ldx #0 with TAX
 Removing instruction ldy.z x
 Removing instruction ldy.z xb
 Removing instruction lda.z result+1
-Replacing instruction lda #<0 with TXA
 Removing instruction lda #>0
+Replacing instruction ldx #0 with TAX
 Succesful ASM optimization Pass5UnnecesaryLoadElimination
 Replacing label __bbegin with __b1
 Replacing label __b3_from___b11 with __b3
@@ -6881,7 +6890,6 @@ Replacing label __b2_from___b5 with __b2
 Replacing label __breturn_from___b8 with __b2
 Replacing label __b7_from___b6 with __b7
 Replacing label __b7_from___b6 with __b7
-Replacing label __b1_from___b1 with __b1
 Removing instruction __bbegin:
 Removing instruction __b1_from___bbegin:
 Removing instruction malloc_from___b1:
@@ -6925,7 +6933,6 @@ Removing instruction __breturn_from___b8:
 Removing instruction __breturn:
 Removing instruction __b7_from___b6:
 Removing instruction __b7_from___b9:
-Removing instruction __b1_from___b1:
 Succesful ASM optimization Pass5RedundantLabelElimination
 Removing instruction __b3:
 Removing instruction malloc_from___b3:
@@ -6975,9 +6982,10 @@ Removing instruction __b9:
 Removing instruction __b3_from___b7:
 Removing instruction __breturn:
 Removing instruction malloc_from_init_squares:
-Removing instruction __b2:
-Removing instruction __b1_from___b2:
+Removing instruction __b3:
+Removing instruction __b1_from___b3:
 Removing instruction __breturn:
+Removing instruction __b1_from___b2:
 Removing instruction __breturn:
 Succesful ASM optimization Pass5UnusedLabelElimination
 Replacing jump to rts with rts in jmp __b2
@@ -6986,7 +6994,6 @@ Adding RTS to root block
 Succesful ASM optimization Pass5AddMainRts
 Removing instruction jmp __b1
 Removing instruction jmp __b1
-Removing instruction jmp __b1
 Succesful ASM optimization Pass5NextJumpElimination
 Removing instruction ldy #0
 Succesful ASM optimization Pass5UnnecesaryLoadElimination
@@ -7236,17 +7243,18 @@ FINAL SYMBOL TABLE
 (byte~) init_squares::$4 reg byte a 22.0
 (label) init_squares::@1
 (label) init_squares::@2
+(label) init_squares::@3
 (label) init_squares::@return
 (byte) init_squares::i
-(byte) init_squares::i#1 reg byte x 16.5
-(byte) init_squares::i#2 reg byte x 5.5
+(byte) init_squares::i#1 reg byte x 22.0
+(byte) init_squares::i#2 reg byte x 6.285714285714286
 (word) init_squares::sqr
-(word) init_squares::sqr#1 sqr zp[2]:7 7.333333333333333
-(word) init_squares::sqr#2 sqr zp[2]:7 6.6000000000000005
+(word) init_squares::sqr#1 sqr zp[2]:7 11.0
+(word) init_squares::sqr#2 sqr zp[2]:7 5.5
 (word*) init_squares::squares
 (word*) init_squares::squares#0 squares zp[2]:9 4.0
-(word*) init_squares::squares#1 squares zp[2]:9 3.6666666666666665
-(word*) init_squares::squares#2 squares zp[2]:9 17.5
+(word*) init_squares::squares#1 squares zp[2]:9 4.4
+(word*) init_squares::squares#2 squares zp[2]:9 11.666666666666666
 (void()) main()
 (label) main::@1
 (label) main::@10
@@ -7325,9 +7333,9 @@ zp[1]:6 [ init_dist_screen::xb#2 init_dist_screen::xb#1 init_angle_screen::xb#2
 reg byte a [ init_dist_screen::xd#0 init_dist_screen::$16 init_dist_screen::$14 ]
 reg byte x [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ]
 reg byte a [ sqr::val#2 sqr::val#1 sqr::val#0 ]
+reg byte x [ init_squares::i#2 init_squares::i#1 ]
 zp[2]:7 [ init_squares::sqr#2 init_squares::sqr#1 init_dist_screen::screen_bottomline#11 init_dist_screen::screen_bottomline#0 init_dist_screen::screen_bottomline#1 init_angle_screen::screen_topline#6 init_angle_screen::screen_topline#0 init_angle_screen::screen_topline#1 main::fill#2 main::fill#1 ]
 zp[2]:9 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 bsearch16u::return#3 sqrt::found#0 sqrt::$3 sqrt::$1 init_angle_screen::screen_bottomline#6 init_angle_screen::screen_bottomline#0 init_angle_screen::screen_bottomline#1 init_angle_screen::screen#0 main::dist#2 main::dist#0 main::dist#1 ]
-reg byte x [ init_squares::i#2 init_squares::i#1 ]
 zp[2]:11 [ SCREEN_DIST#0 ]
 zp[2]:13 [ SCREEN_ANGLE#0 ]
 reg byte a [ init_angle_screen::$3 ]
@@ -7358,7 +7366,7 @@ reg byte a [ init_squares::$4 ]
 
 
 FINAL ASSEMBLER
-Score: 1112746
+Score: 1112776
 
   // File Comments
 // Fill screen using a spiral based on distance-to-center / angle-to-center
@@ -8503,7 +8511,7 @@ init_squares: {
     sta.z malloc.size+1
     // [190] phi (byte*) heap_head#12 = (byte*) heap_head#1 [phi:init_squares->malloc#1] -- register_copy 
     jsr malloc
-    // init_squares::@2
+    // init_squares::@3
     // malloc(NUM_SQUARES*sizeof(word))
     // [179] (void*) SQUARES#1 ← (void*)(byte*) malloc::mem#0
     // squares = SQUARES
@@ -8512,22 +8520,28 @@ init_squares: {
     sta.z squares
     lda.z SQUARES+1
     sta.z squares+1
-    // [181] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
-    // [181] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@2->init_squares::@1#0] -- vbuxx=vbuc1 
-    ldx #0
-    // [181] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
-    // [181] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@2->init_squares::@1#2] -- vwuz1=vwuc1 
-    txa
+    // [181] phi from init_squares::@3 to init_squares::@1 [phi:init_squares::@3->init_squares::@1]
+    // [181] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#0 [phi:init_squares::@3->init_squares::@1#0] -- register_copy 
+    // [181] phi (word) init_squares::sqr#2 = (word) 0 [phi:init_squares::@3->init_squares::@1#1] -- vwuz1=vwuc1 
+    lda #<0
     sta.z sqr
     sta.z sqr+1
-    // [181] phi from init_squares::@1 to init_squares::@1 [phi:init_squares::@1->init_squares::@1]
-    // [181] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@1->init_squares::@1#0] -- register_copy 
-    // [181] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@1->init_squares::@1#1] -- register_copy 
-    // [181] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@1->init_squares::@1#2] -- register_copy 
+    // [181] phi (byte) init_squares::i#2 = (byte) 0 [phi:init_squares::@3->init_squares::@1#2] -- vbuxx=vbuc1 
+    tax
     // init_squares::@1
   __b1:
+    // for(byte i=0;i<NUM_SQUARES;i++)
+    // [182] if((byte) init_squares::i#2<(const byte) NUM_SQUARES#3) goto init_squares::@2 -- vbuxx_lt_vbuc1_then_la1 
+    cpx #NUM_SQUARES
+    bcc __b2
+    // init_squares::@return
+    // }
+    // [183] return 
+    rts
+    // init_squares::@2
+  __b2:
     // *squares++ = sqr
-    // [182] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
+    // [184] *((word*) init_squares::squares#2) ← (word) init_squares::sqr#2 -- _deref_pwuz1=vwuz2 
     ldy #0
     lda.z sqr
     sta (squares),y
@@ -8535,7 +8549,7 @@ init_squares: {
     lda.z sqr+1
     sta (squares),y
     // *squares++ = sqr;
-    // [183] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
+    // [185] (word*) init_squares::squares#1 ← (word*) init_squares::squares#2 + (const byte) SIZEOF_WORD -- pwuz1=pwuz1_plus_vbuc1 
     lda #SIZEOF_WORD
     clc
     adc.z squares
@@ -8544,31 +8558,29 @@ init_squares: {
     inc.z squares+1
   !:
     // i*2
-    // [184] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1 
+    // [186] (byte~) init_squares::$3 ← (byte) init_squares::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1 
     txa
     asl
     // i*2+1
-    // [185] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuaa=vbuaa_plus_1 
+    // [187] (byte~) init_squares::$4 ← (byte~) init_squares::$3 + (byte) 1 -- vbuaa=vbuaa_plus_1 
     clc
     adc #1
     // sqr += i*2+1
-    // [186] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuaa 
+    // [188] (word) init_squares::sqr#1 ← (word) init_squares::sqr#2 + (byte~) init_squares::$4 -- vwuz1=vwuz1_plus_vbuaa 
     clc
     adc.z sqr
     sta.z sqr
     bcc !+
     inc.z sqr+1
   !:
-    // for( byte i: 0..NUM_SQUARES-1)
-    // [187] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuxx=_inc_vbuxx 
+    // for(byte i=0;i<NUM_SQUARES;i++)
+    // [189] (byte) init_squares::i#1 ← ++ (byte) init_squares::i#2 -- vbuxx=_inc_vbuxx 
     inx
-    // [188] if((byte) init_squares::i#1!=(const byte) NUM_SQUARES#3-(byte) 1+(byte) 1) goto init_squares::@1 -- vbuxx_neq_vbuc1_then_la1 
-    cpx #NUM_SQUARES-1+1
-    bne __b1
-    // init_squares::@return
-    // }
-    // [189] return 
-    rts
+    // [181] phi from init_squares::@2 to init_squares::@1 [phi:init_squares::@2->init_squares::@1]
+    // [181] phi (word*) init_squares::squares#2 = (word*) init_squares::squares#1 [phi:init_squares::@2->init_squares::@1#0] -- register_copy 
+    // [181] phi (word) init_squares::sqr#2 = (word) init_squares::sqr#1 [phi:init_squares::@2->init_squares::@1#1] -- register_copy 
+    // [181] phi (byte) init_squares::i#2 = (byte) init_squares::i#1 [phi:init_squares::@2->init_squares::@1#2] -- register_copy 
+    jmp __b1
 }
   // malloc
 // Allocates a block of size bytes of memory, returning a pointer to the beginning of the block.
diff --git a/src/test/ref/screen-show-spiral.sym b/src/test/ref/screen-show-spiral.sym
index eed1c44ba..aea3500bd 100644
--- a/src/test/ref/screen-show-spiral.sym
+++ b/src/test/ref/screen-show-spiral.sym
@@ -239,17 +239,18 @@
 (byte~) init_squares::$4 reg byte a 22.0
 (label) init_squares::@1
 (label) init_squares::@2
+(label) init_squares::@3
 (label) init_squares::@return
 (byte) init_squares::i
-(byte) init_squares::i#1 reg byte x 16.5
-(byte) init_squares::i#2 reg byte x 5.5
+(byte) init_squares::i#1 reg byte x 22.0
+(byte) init_squares::i#2 reg byte x 6.285714285714286
 (word) init_squares::sqr
-(word) init_squares::sqr#1 sqr zp[2]:7 7.333333333333333
-(word) init_squares::sqr#2 sqr zp[2]:7 6.6000000000000005
+(word) init_squares::sqr#1 sqr zp[2]:7 11.0
+(word) init_squares::sqr#2 sqr zp[2]:7 5.5
 (word*) init_squares::squares
 (word*) init_squares::squares#0 squares zp[2]:9 4.0
-(word*) init_squares::squares#1 squares zp[2]:9 3.6666666666666665
-(word*) init_squares::squares#2 squares zp[2]:9 17.5
+(word*) init_squares::squares#1 squares zp[2]:9 4.4
+(word*) init_squares::squares#2 squares zp[2]:9 11.666666666666666
 (void()) main()
 (label) main::@1
 (label) main::@10
@@ -328,9 +329,9 @@ zp[1]:6 [ init_dist_screen::xb#2 init_dist_screen::xb#1 init_angle_screen::xb#2
 reg byte a [ init_dist_screen::xd#0 init_dist_screen::$16 init_dist_screen::$14 ]
 reg byte x [ bsearch16u::num#5 bsearch16u::num#1 bsearch16u::num#3 bsearch16u::num#0 ]
 reg byte a [ sqr::val#2 sqr::val#1 sqr::val#0 ]
+reg byte x [ init_squares::i#2 init_squares::i#1 ]
 zp[2]:7 [ init_squares::sqr#2 init_squares::sqr#1 init_dist_screen::screen_bottomline#11 init_dist_screen::screen_bottomline#0 init_dist_screen::screen_bottomline#1 init_angle_screen::screen_topline#6 init_angle_screen::screen_topline#0 init_angle_screen::screen_topline#1 main::fill#2 main::fill#1 ]
 zp[2]:9 [ init_squares::squares#2 init_squares::squares#1 init_squares::squares#0 bsearch16u::return#1 bsearch16u::return#6 bsearch16u::return#2 bsearch16u::items#2 bsearch16u::items#1 bsearch16u::items#8 bsearch16u::$2 bsearch16u::items#0 bsearch16u::return#3 sqrt::found#0 sqrt::$3 sqrt::$1 init_angle_screen::screen_bottomline#6 init_angle_screen::screen_bottomline#0 init_angle_screen::screen_bottomline#1 init_angle_screen::screen#0 main::dist#2 main::dist#0 main::dist#1 ]
-reg byte x [ init_squares::i#2 init_squares::i#1 ]
 zp[2]:11 [ SCREEN_DIST#0 ]
 zp[2]:13 [ SCREEN_ANGLE#0 ]
 reg byte a [ init_angle_screen::$3 ]