
CONTROL FLOW GRAPH SSA
@begin: scope:[]  from
  to:@1
main: scope:[main]  from @1
  (byte*) main::screen#0 ← ((byte*)) (word/signed word/dword/signed dword) 1024
  (word) main::line#0 ← (byte/signed byte/word/signed word/dword/signed dword) 0
  to:main::@1
main::@1: scope:[main]  from main main::@4
  (byte*) main::screen#3 ← phi( main/(byte*) main::screen#0 main::@4/(byte*) main::screen#5 )
  (word) main::line#5 ← phi( main/(word) main::line#0 main::@4/(word) main::line#1 )
  (byte) main::c#0 ← (byte/signed byte/word/signed word/dword/signed dword) 0
  to:main::@2
main::@2: scope:[main]  from main::@1 main::@2
  (byte*) main::screen#1 ← phi( main::@1/(byte*) main::screen#3 main::@2/(byte*) main::screen#1 )
  (byte) main::c#4 ← phi( main::@1/(byte) main::c#0 main::@2/(byte) main::c#1 )
  (word) main::line#2 ← phi( main::@1/(word) main::line#5 main::@2/(word) main::line#2 )
  (word~) main::$0 ← (word) main::line#2 + (byte) main::c#4
  (word~) main::$1 ← (word) main::line#2 + (byte) main::c#4
  (word/signed dword/dword~) main::$2 ← (word~) main::$1 + (byte/signed byte/word/signed word/dword/signed dword) 40
  *((byte*) main::screen#1 + (word~) main::$0) ← *((byte*) main::screen#1 + (word/signed dword/dword~) main::$2)
  (byte) main::c#1 ← ++ (byte) main::c#4
  (bool~) main::$3 ← (byte) main::c#1 < (byte/signed byte/word/signed word/dword/signed dword) 40
  if((bool~) main::$3) goto main::@2
  to:main::@4
main::@4: scope:[main]  from main::@2
  (byte*) main::screen#5 ← phi( main::@2/(byte*) main::screen#1 )
  (word) main::line#3 ← phi( main::@2/(word) main::line#2 )
  (word) main::line#1 ← (word) main::line#3 + (byte/signed byte/word/signed word/dword/signed dword) 40
  (word/signed word/dword/signed dword~) main::$4 ← (byte/signed byte/word/signed word/dword/signed dword) 40 * (byte/signed byte/word/signed word/dword/signed dword) 24
  (bool~) main::$5 ← (word) main::line#1 < (word/signed word/dword/signed dword~) main::$4
  if((bool~) main::$5) goto main::@1
  to:main::@5
main::@5: scope:[main]  from main::@4
  (byte*) main::screen#4 ← phi( main::@4/(byte*) main::screen#5 )
  (word) main::line#6 ← phi( main::@4/(word) main::line#1 )
  (byte) main::c#2 ← (byte/signed byte/word/signed word/dword/signed dword) 0
  to:main::@3
main::@3: scope:[main]  from main::@3 main::@5
  (byte*) main::screen#2 ← phi( main::@3/(byte*) main::screen#2 main::@5/(byte*) main::screen#4 )
  (byte) main::c#5 ← phi( main::@3/(byte) main::c#3 main::@5/(byte) main::c#2 )
  (word) main::line#4 ← phi( main::@3/(word) main::line#4 main::@5/(word) main::line#6 )
  (word~) main::$6 ← (word) main::line#4 + (byte) main::c#5
  *((byte*) main::screen#2 + (word~) main::$6) ← (byte) ' '
  (byte) main::c#3 ← ++ (byte) main::c#5
  (bool~) main::$7 ← (byte) main::c#3 < (byte/signed byte/word/signed word/dword/signed dword) 40
  if((bool~) main::$7) goto main::@3
  to:main::@return
main::@return: scope:[main]  from main::@3
  return 
  to:@return
@1: scope:[]  from @begin
  call main 
  to:@2
@2: scope:[]  from @1
  to:@end
@end: scope:[]  from @2

SYMBOL TABLE SSA
(label) @1
(label) @2
(label) @begin
(label) @end
(void()) main()
(word~) main::$0
(word~) main::$1
(word/signed dword/dword~) main::$2
(bool~) main::$3
(word/signed word/dword/signed dword~) main::$4
(bool~) main::$5
(word~) main::$6
(bool~) main::$7
(label) main::@1
(label) main::@2
(label) main::@3
(label) main::@4
(label) main::@5
(label) main::@return
(byte) main::c
(byte) main::c#0
(byte) main::c#1
(byte) main::c#2
(byte) main::c#3
(byte) main::c#4
(byte) main::c#5
(word) main::line
(word) main::line#0
(word) main::line#1
(word) main::line#2
(word) main::line#3
(word) main::line#4
(word) main::line#5
(word) main::line#6
(byte*) main::screen
(byte*) main::screen#0
(byte*) main::screen#1
(byte*) main::screen#2
(byte*) main::screen#3
(byte*) main::screen#4
(byte*) main::screen#5

Culled Empty Block (label) @2
Successful SSA optimization Pass2CullEmptyBlocks
Alias (word) main::line#2 = (word) main::line#3 
Alias (byte*) main::screen#1 = (byte*) main::screen#5 (byte*) main::screen#4 
Alias (word) main::line#1 = (word) main::line#6 
Successful SSA optimization Pass2AliasElimination
Self Phi Eliminated (word) main::line#2
Self Phi Eliminated (byte*) main::screen#1
Self Phi Eliminated (word) main::line#4
Self Phi Eliminated (byte*) main::screen#2
Successful SSA optimization Pass2SelfPhiElimination
Redundant Phi (word) main::line#2 (word) main::line#5
Redundant Phi (byte*) main::screen#1 (byte*) main::screen#3
Redundant Phi (word) main::line#4 (word) main::line#1
Redundant Phi (byte*) main::screen#2 (byte*) main::screen#1
Successful SSA optimization Pass2RedundantPhiElimination
Simple Condition (bool~) main::$3 [11] if((byte) main::c#1<(byte/signed byte/word/signed word/dword/signed dword) 40) goto main::@2
Simple Condition (bool~) main::$5 [16] if((word) main::line#1<(word/signed word/dword/signed dword~) main::$4) goto main::@1
Simple Condition (bool~) main::$7 [24] if((byte) main::c#3<(byte/signed byte/word/signed word/dword/signed dword) 40) goto main::@3
Successful SSA optimization Pass2ConditionalJumpSimplification
Constant (const byte*) main::screen#0 = ((byte*))1024
Constant (const word) main::line#0 = 0
Constant (const byte) main::c#0 = 0
Constant (const word/signed word/dword/signed dword) main::$4 = 40*24
Constant (const byte) main::c#2 = 0
Successful SSA optimization Pass2ConstantIdentification
Culled Empty Block (label) main::@5
Successful SSA optimization Pass2CullEmptyBlocks
Self Phi Eliminated (byte*) main::screen#3
Successful SSA optimization Pass2SelfPhiElimination
Redundant Phi (byte*) main::screen#3 (const byte*) main::screen#0
Successful SSA optimization Pass2RedundantPhiElimination
Consolidated array index constant in assignment *(main::screen#0+40 + main::$2)
Successful SSA optimization Pass2ConstantAdditionElimination
Inferred type updated to word in [4] (word/signed dword/dword~) main::$2 ← (word~) main::$1
Alias (word~) main::$2 = (word~) main::$1 
Successful SSA optimization Pass2AliasElimination
Inlining constant with var siblings (const word) main::line#0
Inlining constant with var siblings (const byte) main::c#0
Inlining constant with var siblings (const byte) main::c#2
Constant inlined main::c#0 = (byte/signed byte/word/signed word/dword/signed dword) 0
Constant inlined main::$4 = (byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24
Constant inlined main::line#0 = (byte/signed byte/word/signed word/dword/signed dword) 0
Constant inlined main::c#2 = (byte/signed byte/word/signed word/dword/signed dword) 0
Successful SSA optimization Pass2ConstantInlining
Added new block during phi lifting main::@7(between main::@4 and main::@1)
Added new block during phi lifting main::@8(between main::@2 and main::@2)
Added new block during phi lifting main::@9(between main::@3 and main::@3)
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @1
Adding NOP phi() at start of @end
Adding NOP phi() at start of main
CALL GRAPH
Calls in [] to main:2 

Created 3 initial phi equivalence classes
Coalesced [20] main::c#7 ← main::c#3
Coalesced [21] main::line#7 ← main::line#1
Coalesced [22] main::c#6 ← main::c#1
Coalesced down to 3 phi equivalence classes
Culled Empty Block (label) main::@9
Culled Empty Block (label) main::@7
Culled Empty Block (label) main::@8
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @1
Adding NOP phi() at start of @end
Adding NOP phi() at start of main

FINAL CONTROL FLOW GRAPH
@begin: scope:[]  from
  [0] phi()
  to:@1
@1: scope:[]  from @begin
  [1] phi()
  [2] call main 
  to:@end
@end: scope:[]  from @1
  [3] phi()
main: scope:[main]  from @1
  [4] phi()
  to:main::@1
main::@1: scope:[main]  from main main::@4
  [5] (word) main::line#5 ← phi( main/(byte/signed byte/word/signed word/dword/signed dword) 0 main::@4/(word) main::line#1 )
  to:main::@2
main::@2: scope:[main]  from main::@1 main::@2
  [6] (byte) main::c#4 ← phi( main::@1/(byte/signed byte/word/signed word/dword/signed dword) 0 main::@2/(byte) main::c#1 )
  [7] (word~) main::$0 ← (word) main::line#5 + (byte) main::c#4
  [8] (word~) main::$2 ← (word) main::line#5 + (byte) main::c#4
  [9] *((const byte*) main::screen#0 + (word~) main::$0) ← *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word~) main::$2)
  [10] (byte) main::c#1 ← ++ (byte) main::c#4
  [11] if((byte) main::c#1<(byte/signed byte/word/signed word/dword/signed dword) 40) goto main::@2
  to:main::@4
main::@4: scope:[main]  from main::@2
  [12] (word) main::line#1 ← (word) main::line#5 + (byte/signed byte/word/signed word/dword/signed dword) 40
  [13] if((word) main::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto main::@1
  to:main::@3
main::@3: scope:[main]  from main::@3 main::@4
  [14] (byte) main::c#5 ← phi( main::@3/(byte) main::c#3 main::@4/(byte/signed byte/word/signed word/dword/signed dword) 0 )
  [15] (word~) main::$6 ← (word) main::line#1 + (byte) main::c#5
  [16] *((const byte*) main::screen#0 + (word~) main::$6) ← (byte) ' '
  [17] (byte) main::c#3 ← ++ (byte) main::c#5
  [18] if((byte) main::c#3<(byte/signed byte/word/signed word/dword/signed dword) 40) goto main::@3
  to:main::@return
main::@return: scope:[main]  from main::@3
  [19] return 
  to:@return


VARIABLE REGISTER WEIGHTS
(void()) main()
(word~) main::$0 101.0
(word~) main::$2 202.0
(word~) main::$6 22.0
(byte) main::c
(byte) main::c#1 151.5
(byte) main::c#3 16.5
(byte) main::c#4 101.0
(byte) main::c#5 11.0
(word) main::line
(word) main::line#1 6.285714285714286
(word) main::line#5 32.0
(byte*) main::screen

Initial phi equivalence classes
[ main::line#5 main::line#1 ]
[ main::c#4 main::c#1 ]
[ main::c#5 main::c#3 ]
Added variable main::$0 to zero page equivalence class [ main::$0 ]
Added variable main::$2 to zero page equivalence class [ main::$2 ]
Added variable main::$6 to zero page equivalence class [ main::$6 ]
Complete equivalence classes
[ main::line#5 main::line#1 ]
[ main::c#4 main::c#1 ]
[ main::c#5 main::c#3 ]
[ main::$0 ]
[ main::$2 ]
[ main::$6 ]
Allocated zp ZP_WORD:2 [ main::line#5 main::line#1 ]
Allocated zp ZP_BYTE:4 [ main::c#4 main::c#1 ]
Allocated zp ZP_BYTE:5 [ main::c#5 main::c#3 ]
Allocated zp ZP_WORD:6 [ main::$0 ]
Allocated zp ZP_WORD:8 [ main::$2 ]
Allocated zp ZP_WORD:10 [ main::$6 ]

INITIAL ASM
//SEG0 File Comments
//SEG1 Basic Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
//SEG2 Global Constants & labels
//SEG3 @begin
bbegin:
//SEG4 [1] phi from @begin to @1 [phi:@begin->@1]
b1_from_bbegin:
  jmp b1
//SEG5 @1
b1:
//SEG6 [2] call main 
//SEG7 [4] phi from @1 to main [phi:@1->main]
main_from_b1:
  jsr main
//SEG8 [3] phi from @1 to @end [phi:@1->@end]
bend_from_b1:
  jmp bend
//SEG9 @end
bend:
//SEG10 main
main: {
    .label screen = $400
    .label _0 = 6
    .label _2 = 8
    .label _6 = $a
    .label c = 4
    .label line = 2
    .label c_3 = 5
    .label c_5 = 5
  //SEG11 [5] phi from main to main::@1 [phi:main->main::@1]
  b1_from_main:
  //SEG12 [5] phi (word) main::line#5 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main->main::@1#0] -- vwuz1=vbuc1 
    lda #<0
    sta line
    lda #>0
    sta line+1
    jmp b1
  //SEG13 [5] phi from main::@4 to main::@1 [phi:main::@4->main::@1]
  b1_from_b4:
  //SEG14 [5] phi (word) main::line#5 = (word) main::line#1 [phi:main::@4->main::@1#0] -- register_copy 
    jmp b1
  //SEG15 main::@1
  b1:
  //SEG16 [6] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
  b2_from_b1:
  //SEG17 [6] phi (byte) main::c#4 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main::@1->main::@2#0] -- vbuz1=vbuc1 
    lda #0
    sta c
    jmp b2
  //SEG18 [6] phi from main::@2 to main::@2 [phi:main::@2->main::@2]
  b2_from_b2:
  //SEG19 [6] phi (byte) main::c#4 = (byte) main::c#1 [phi:main::@2->main::@2#0] -- register_copy 
    jmp b2
  //SEG20 main::@2
  b2:
  //SEG21 [7] (word~) main::$0 ← (word) main::line#5 + (byte) main::c#4 -- vwuz1=vwuz2_plus_vbuz3 
    lda c
    clc
    adc line
    sta _0
    lda #0
    adc line+1
    sta _0+1
  //SEG22 [8] (word~) main::$2 ← (word) main::line#5 + (byte) main::c#4 -- vwuz1=vwuz2_plus_vbuz3 
    lda c
    clc
    adc line
    sta _2
    lda #0
    adc line+1
    sta _2+1
  //SEG23 [9] *((const byte*) main::screen#0 + (word~) main::$0) ← *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word~) main::$2) -- pbuc1_derefidx_vwuz1=pbuc2_derefidx_vwuz2 
    lda #<screen
    clc
    adc _0
    sta !a1++1
    lda #>screen
    adc _0+1
    sta !a1++2
    lda #<screen+$28
    clc
    adc _2
    sta !a2++1
    lda #>screen+$28
    adc _2+1
    sta !a2++2
  !a2:
    lda screen+$28
  !a1:
    sta screen
  //SEG24 [10] (byte) main::c#1 ← ++ (byte) main::c#4 -- vbuz1=_inc_vbuz1 
    inc c
  //SEG25 [11] if((byte) main::c#1<(byte/signed byte/word/signed word/dword/signed dword) 40) goto main::@2 -- vbuz1_lt_vbuc1_then_la1 
    lda c
    cmp #$28
    bcc b2_from_b2
    jmp b4
  //SEG26 main::@4
  b4:
  //SEG27 [12] (word) main::line#1 ← (word) main::line#5 + (byte/signed byte/word/signed word/dword/signed dword) 40 -- vwuz1=vwuz1_plus_vbuc1 
    clc
    lda line
    adc #<$28
    sta line
    lda line+1
    adc #>$28
    sta line+1
  //SEG28 [13] if((word) main::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto main::@1 -- vwuz1_lt_vwuc1_then_la1 
    lda line+1
    cmp #>$28*$18
    bcc b1_from_b4
    bne !+
    lda line
    cmp #<$28*$18
    bcc b1_from_b4
  !:
  //SEG29 [14] phi from main::@4 to main::@3 [phi:main::@4->main::@3]
  b3_from_b4:
  //SEG30 [14] phi (byte) main::c#5 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main::@4->main::@3#0] -- vbuz1=vbuc1 
    lda #0
    sta c_5
    jmp b3
  // Cleare the bottom line
  //SEG31 [14] phi from main::@3 to main::@3 [phi:main::@3->main::@3]
  b3_from_b3:
  //SEG32 [14] phi (byte) main::c#5 = (byte) main::c#3 [phi:main::@3->main::@3#0] -- register_copy 
    jmp b3
  //SEG33 main::@3
  b3:
  //SEG34 [15] (word~) main::$6 ← (word) main::line#1 + (byte) main::c#5 -- vwuz1=vwuz2_plus_vbuz3 
    lda c_5
    clc
    adc line
    sta _6
    lda #0
    adc line+1
    sta _6+1
  //SEG35 [16] *((const byte*) main::screen#0 + (word~) main::$6) ← (byte) ' ' -- pbuc1_derefidx_vwuz1=vbuc2 
    lda #<screen
    clc
    adc _6
    sta !++1
    lda #>screen
    adc _6+1
    sta !++2
    lda #' '
  !:
    sta screen
  //SEG36 [17] (byte) main::c#3 ← ++ (byte) main::c#5 -- vbuz1=_inc_vbuz1 
    inc c_3
  //SEG37 [18] if((byte) main::c#3<(byte/signed byte/word/signed word/dword/signed dword) 40) goto main::@3 -- vbuz1_lt_vbuc1_then_la1 
    lda c_3
    cmp #$28
    bcc b3_from_b3
    jmp breturn
  //SEG38 main::@return
  breturn:
  //SEG39 [19] return 
    rts
}

REGISTER UPLIFT POTENTIAL REGISTERS
Statement [7] (word~) main::$0 ← (word) main::line#5 + (byte) main::c#4 [ main::line#5 main::c#4 main::$0 ] ( main:2 [ main::line#5 main::c#4 main::$0 ] ) always clobbers reg byte a 
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:4 [ main::c#4 main::c#1 ]
Statement [8] (word~) main::$2 ← (word) main::line#5 + (byte) main::c#4 [ main::line#5 main::c#4 main::$0 main::$2 ] ( main:2 [ main::line#5 main::c#4 main::$0 main::$2 ] ) always clobbers reg byte a 
Statement [9] *((const byte*) main::screen#0 + (word~) main::$0) ← *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word~) main::$2) [ main::line#5 main::c#4 ] ( main:2 [ main::line#5 main::c#4 ] ) always clobbers reg byte a 
Statement [12] (word) main::line#1 ← (word) main::line#5 + (byte/signed byte/word/signed word/dword/signed dword) 40 [ main::line#1 ] ( main:2 [ main::line#1 ] ) always clobbers reg byte a 
Statement [13] if((word) main::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto main::@1 [ main::line#1 ] ( main:2 [ main::line#1 ] ) always clobbers reg byte a 
Statement [15] (word~) main::$6 ← (word) main::line#1 + (byte) main::c#5 [ main::line#1 main::c#5 main::$6 ] ( main:2 [ main::line#1 main::c#5 main::$6 ] ) always clobbers reg byte a 
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:5 [ main::c#5 main::c#3 ]
Statement [16] *((const byte*) main::screen#0 + (word~) main::$6) ← (byte) ' ' [ main::line#1 main::c#5 ] ( main:2 [ main::line#1 main::c#5 ] ) always clobbers reg byte a 
Statement [7] (word~) main::$0 ← (word) main::line#5 + (byte) main::c#4 [ main::line#5 main::c#4 main::$0 ] ( main:2 [ main::line#5 main::c#4 main::$0 ] ) always clobbers reg byte a 
Statement [8] (word~) main::$2 ← (word) main::line#5 + (byte) main::c#4 [ main::line#5 main::c#4 main::$0 main::$2 ] ( main:2 [ main::line#5 main::c#4 main::$0 main::$2 ] ) always clobbers reg byte a 
Statement [9] *((const byte*) main::screen#0 + (word~) main::$0) ← *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word~) main::$2) [ main::line#5 main::c#4 ] ( main:2 [ main::line#5 main::c#4 ] ) always clobbers reg byte a 
Statement [12] (word) main::line#1 ← (word) main::line#5 + (byte/signed byte/word/signed word/dword/signed dword) 40 [ main::line#1 ] ( main:2 [ main::line#1 ] ) always clobbers reg byte a 
Statement [13] if((word) main::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto main::@1 [ main::line#1 ] ( main:2 [ main::line#1 ] ) always clobbers reg byte a 
Statement [15] (word~) main::$6 ← (word) main::line#1 + (byte) main::c#5 [ main::line#1 main::c#5 main::$6 ] ( main:2 [ main::line#1 main::c#5 main::$6 ] ) always clobbers reg byte a 
Statement [16] *((const byte*) main::screen#0 + (word~) main::$6) ← (byte) ' ' [ main::line#1 main::c#5 ] ( main:2 [ main::line#1 main::c#5 ] ) always clobbers reg byte a 
Potential registers zp ZP_WORD:2 [ main::line#5 main::line#1 ] : zp ZP_WORD:2 , 
Potential registers zp ZP_BYTE:4 [ main::c#4 main::c#1 ] : zp ZP_BYTE:4 , reg byte x , reg byte y , 
Potential registers zp ZP_BYTE:5 [ main::c#5 main::c#3 ] : zp ZP_BYTE:5 , reg byte x , reg byte y , 
Potential registers zp ZP_WORD:6 [ main::$0 ] : zp ZP_WORD:6 , 
Potential registers zp ZP_WORD:8 [ main::$2 ] : zp ZP_WORD:8 , 
Potential registers zp ZP_WORD:10 [ main::$6 ] : zp ZP_WORD:10 , 

REGISTER UPLIFT SCOPES
Uplift Scope [main] 252.5: zp ZP_BYTE:4 [ main::c#4 main::c#1 ] 202: zp ZP_WORD:8 [ main::$2 ] 101: zp ZP_WORD:6 [ main::$0 ] 38.29: zp ZP_WORD:2 [ main::line#5 main::line#1 ] 27.5: zp ZP_BYTE:5 [ main::c#5 main::c#3 ] 22: zp ZP_WORD:10 [ main::$6 ] 
Uplift Scope [] 

Uplifting [main] best 11298 combination reg byte x [ main::c#4 main::c#1 ] zp ZP_WORD:8 [ main::$2 ] zp ZP_WORD:6 [ main::$0 ] zp ZP_WORD:2 [ main::line#5 main::line#1 ] reg byte x [ main::c#5 main::c#3 ] zp ZP_WORD:10 [ main::$6 ] 
Uplifting [] best 11298 combination 
Coalescing zero page register [ zp ZP_WORD:6 [ main::$0 ] ] with [ zp ZP_WORD:10 [ main::$6 ] ]
Allocated (was zp ZP_WORD:6) zp ZP_WORD:4 [ main::$0 main::$6 ]
Allocated (was zp ZP_WORD:8) zp ZP_WORD:6 [ main::$2 ]

ASSEMBLER BEFORE OPTIMIZATION
//SEG0 File Comments
//SEG1 Basic Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
//SEG2 Global Constants & labels
//SEG3 @begin
bbegin:
//SEG4 [1] phi from @begin to @1 [phi:@begin->@1]
b1_from_bbegin:
  jmp b1
//SEG5 @1
b1:
//SEG6 [2] call main 
//SEG7 [4] phi from @1 to main [phi:@1->main]
main_from_b1:
  jsr main
//SEG8 [3] phi from @1 to @end [phi:@1->@end]
bend_from_b1:
  jmp bend
//SEG9 @end
bend:
//SEG10 main
main: {
    .label screen = $400
    .label _0 = 4
    .label _2 = 6
    .label _6 = 4
    .label line = 2
  //SEG11 [5] phi from main to main::@1 [phi:main->main::@1]
  b1_from_main:
  //SEG12 [5] phi (word) main::line#5 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main->main::@1#0] -- vwuz1=vbuc1 
    lda #<0
    sta line
    lda #>0
    sta line+1
    jmp b1
  //SEG13 [5] phi from main::@4 to main::@1 [phi:main::@4->main::@1]
  b1_from_b4:
  //SEG14 [5] phi (word) main::line#5 = (word) main::line#1 [phi:main::@4->main::@1#0] -- register_copy 
    jmp b1
  //SEG15 main::@1
  b1:
  //SEG16 [6] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
  b2_from_b1:
  //SEG17 [6] phi (byte) main::c#4 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main::@1->main::@2#0] -- vbuxx=vbuc1 
    ldx #0
    jmp b2
  //SEG18 [6] phi from main::@2 to main::@2 [phi:main::@2->main::@2]
  b2_from_b2:
  //SEG19 [6] phi (byte) main::c#4 = (byte) main::c#1 [phi:main::@2->main::@2#0] -- register_copy 
    jmp b2
  //SEG20 main::@2
  b2:
  //SEG21 [7] (word~) main::$0 ← (word) main::line#5 + (byte) main::c#4 -- vwuz1=vwuz2_plus_vbuxx 
    txa
    clc
    adc line
    sta _0
    lda #0
    adc line+1
    sta _0+1
  //SEG22 [8] (word~) main::$2 ← (word) main::line#5 + (byte) main::c#4 -- vwuz1=vwuz2_plus_vbuxx 
    txa
    clc
    adc line
    sta _2
    lda #0
    adc line+1
    sta _2+1
  //SEG23 [9] *((const byte*) main::screen#0 + (word~) main::$0) ← *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word~) main::$2) -- pbuc1_derefidx_vwuz1=pbuc2_derefidx_vwuz2 
    lda #<screen
    clc
    adc _0
    sta !a1++1
    lda #>screen
    adc _0+1
    sta !a1++2
    lda #<screen+$28
    clc
    adc _2
    sta !a2++1
    lda #>screen+$28
    adc _2+1
    sta !a2++2
  !a2:
    lda screen+$28
  !a1:
    sta screen
  //SEG24 [10] (byte) main::c#1 ← ++ (byte) main::c#4 -- vbuxx=_inc_vbuxx 
    inx
  //SEG25 [11] if((byte) main::c#1<(byte/signed byte/word/signed word/dword/signed dword) 40) goto main::@2 -- vbuxx_lt_vbuc1_then_la1 
    cpx #$28
    bcc b2_from_b2
    jmp b4
  //SEG26 main::@4
  b4:
  //SEG27 [12] (word) main::line#1 ← (word) main::line#5 + (byte/signed byte/word/signed word/dword/signed dword) 40 -- vwuz1=vwuz1_plus_vbuc1 
    clc
    lda line
    adc #<$28
    sta line
    lda line+1
    adc #>$28
    sta line+1
  //SEG28 [13] if((word) main::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto main::@1 -- vwuz1_lt_vwuc1_then_la1 
    lda line+1
    cmp #>$28*$18
    bcc b1_from_b4
    bne !+
    lda line
    cmp #<$28*$18
    bcc b1_from_b4
  !:
  //SEG29 [14] phi from main::@4 to main::@3 [phi:main::@4->main::@3]
  b3_from_b4:
  //SEG30 [14] phi (byte) main::c#5 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main::@4->main::@3#0] -- vbuxx=vbuc1 
    ldx #0
    jmp b3
  // Cleare the bottom line
  //SEG31 [14] phi from main::@3 to main::@3 [phi:main::@3->main::@3]
  b3_from_b3:
  //SEG32 [14] phi (byte) main::c#5 = (byte) main::c#3 [phi:main::@3->main::@3#0] -- register_copy 
    jmp b3
  //SEG33 main::@3
  b3:
  //SEG34 [15] (word~) main::$6 ← (word) main::line#1 + (byte) main::c#5 -- vwuz1=vwuz2_plus_vbuxx 
    txa
    clc
    adc line
    sta _6
    lda #0
    adc line+1
    sta _6+1
  //SEG35 [16] *((const byte*) main::screen#0 + (word~) main::$6) ← (byte) ' ' -- pbuc1_derefidx_vwuz1=vbuc2 
    lda #<screen
    clc
    adc _6
    sta !++1
    lda #>screen
    adc _6+1
    sta !++2
    lda #' '
  !:
    sta screen
  //SEG36 [17] (byte) main::c#3 ← ++ (byte) main::c#5 -- vbuxx=_inc_vbuxx 
    inx
  //SEG37 [18] if((byte) main::c#3<(byte/signed byte/word/signed word/dword/signed dword) 40) goto main::@3 -- vbuxx_lt_vbuc1_then_la1 
    cpx #$28
    bcc b3_from_b3
    jmp breturn
  //SEG38 main::@return
  breturn:
  //SEG39 [19] return 
    rts
}

ASSEMBLER OPTIMIZATIONS
Removing instruction jmp b1
Removing instruction jmp bend
Removing instruction jmp b1
Removing instruction jmp b2
Removing instruction jmp b4
Removing instruction jmp b3
Removing instruction jmp breturn
Succesful ASM optimization Pass5NextJumpElimination
Removing instruction lda #>0
Removing instruction lda line+1
Succesful ASM optimization Pass5UnnecesaryLoadElimination
Replacing label b2_from_b2 with b2
Replacing label b1_from_b4 with b1
Replacing label b1_from_b4 with b1
Replacing label b3_from_b3 with b3
Removing instruction b1_from_bbegin:
Removing instruction b1:
Removing instruction main_from_b1:
Removing instruction bend_from_b1:
Removing instruction b1_from_b4:
Removing instruction b2_from_b1:
Removing instruction b2_from_b2:
Removing instruction b3_from_b3:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction bend:
Removing instruction b1_from_main:
Removing instruction b4:
Removing instruction b3_from_b4:
Removing instruction breturn:
Succesful ASM optimization Pass5UnusedLabelElimination
Updating BasicUpstart to call main directly
Removing instruction jsr main
Succesful ASM optimization Pass5SkipBegin
Removing instruction jmp b1
Removing instruction jmp b2
Removing instruction jmp b3
Succesful ASM optimization Pass5NextJumpElimination
Removing instruction bbegin:
Succesful ASM optimization Pass5UnusedLabelElimination

FINAL SYMBOL TABLE
(label) @1
(label) @begin
(label) @end
(void()) main()
(word~) main::$0 $0 zp ZP_WORD:4 101.0
(word~) main::$2 $2 zp ZP_WORD:6 202.0
(word~) main::$6 $6 zp ZP_WORD:4 22.0
(label) main::@1
(label) main::@2
(label) main::@3
(label) main::@4
(label) main::@return
(byte) main::c
(byte) main::c#1 reg byte x 151.5
(byte) main::c#3 reg byte x 16.5
(byte) main::c#4 reg byte x 101.0
(byte) main::c#5 reg byte x 11.0
(word) main::line
(word) main::line#1 line zp ZP_WORD:2 6.285714285714286
(word) main::line#5 line zp ZP_WORD:2 32.0
(byte*) main::screen
(const byte*) main::screen#0 screen = ((byte*))(word/signed word/dword/signed dword) 1024

zp ZP_WORD:2 [ main::line#5 main::line#1 ]
reg byte x [ main::c#4 main::c#1 ]
reg byte x [ main::c#5 main::c#3 ]
zp ZP_WORD:4 [ main::$0 main::$6 ]
zp ZP_WORD:6 [ main::$2 ]


FINAL ASSEMBLER
Score: 10186

//SEG0 File Comments
//SEG1 Basic Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
//SEG2 Global Constants & labels
//SEG3 @begin
//SEG4 [1] phi from @begin to @1 [phi:@begin->@1]
//SEG5 @1
//SEG6 [2] call main 
//SEG7 [4] phi from @1 to main [phi:@1->main]
//SEG8 [3] phi from @1 to @end [phi:@1->@end]
//SEG9 @end
//SEG10 main
main: {
    .label screen = $400
    .label _0 = 4
    .label _2 = 6
    .label _6 = 4
    .label line = 2
  //SEG11 [5] phi from main to main::@1 [phi:main->main::@1]
  //SEG12 [5] phi (word) main::line#5 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main->main::@1#0] -- vwuz1=vbuc1 
    lda #<0
    sta line
    sta line+1
  //SEG13 [5] phi from main::@4 to main::@1 [phi:main::@4->main::@1]
  //SEG14 [5] phi (word) main::line#5 = (word) main::line#1 [phi:main::@4->main::@1#0] -- register_copy 
  //SEG15 main::@1
  b1:
  //SEG16 [6] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
  //SEG17 [6] phi (byte) main::c#4 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main::@1->main::@2#0] -- vbuxx=vbuc1 
    ldx #0
  //SEG18 [6] phi from main::@2 to main::@2 [phi:main::@2->main::@2]
  //SEG19 [6] phi (byte) main::c#4 = (byte) main::c#1 [phi:main::@2->main::@2#0] -- register_copy 
  //SEG20 main::@2
  b2:
  //SEG21 [7] (word~) main::$0 ← (word) main::line#5 + (byte) main::c#4 -- vwuz1=vwuz2_plus_vbuxx 
    txa
    clc
    adc line
    sta _0
    lda #0
    adc line+1
    sta _0+1
  //SEG22 [8] (word~) main::$2 ← (word) main::line#5 + (byte) main::c#4 -- vwuz1=vwuz2_plus_vbuxx 
    txa
    clc
    adc line
    sta _2
    lda #0
    adc line+1
    sta _2+1
  //SEG23 [9] *((const byte*) main::screen#0 + (word~) main::$0) ← *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 40 + (word~) main::$2) -- pbuc1_derefidx_vwuz1=pbuc2_derefidx_vwuz2 
    lda #<screen
    clc
    adc _0
    sta !a1++1
    lda #>screen
    adc _0+1
    sta !a1++2
    lda #<screen+$28
    clc
    adc _2
    sta !a2++1
    lda #>screen+$28
    adc _2+1
    sta !a2++2
  !a2:
    lda screen+$28
  !a1:
    sta screen
  //SEG24 [10] (byte) main::c#1 ← ++ (byte) main::c#4 -- vbuxx=_inc_vbuxx 
    inx
  //SEG25 [11] if((byte) main::c#1<(byte/signed byte/word/signed word/dword/signed dword) 40) goto main::@2 -- vbuxx_lt_vbuc1_then_la1 
    cpx #$28
    bcc b2
  //SEG26 main::@4
  //SEG27 [12] (word) main::line#1 ← (word) main::line#5 + (byte/signed byte/word/signed word/dword/signed dword) 40 -- vwuz1=vwuz1_plus_vbuc1 
    clc
    lda line
    adc #<$28
    sta line
    lda line+1
    adc #>$28
    sta line+1
  //SEG28 [13] if((word) main::line#1<(byte/signed byte/word/signed word/dword/signed dword) 40*(byte/signed byte/word/signed word/dword/signed dword) 24) goto main::@1 -- vwuz1_lt_vwuc1_then_la1 
    cmp #>$28*$18
    bcc b1
    bne !+
    lda line
    cmp #<$28*$18
    bcc b1
  !:
  //SEG29 [14] phi from main::@4 to main::@3 [phi:main::@4->main::@3]
  //SEG30 [14] phi (byte) main::c#5 = (byte/signed byte/word/signed word/dword/signed dword) 0 [phi:main::@4->main::@3#0] -- vbuxx=vbuc1 
    ldx #0
  // Cleare the bottom line
  //SEG31 [14] phi from main::@3 to main::@3 [phi:main::@3->main::@3]
  //SEG32 [14] phi (byte) main::c#5 = (byte) main::c#3 [phi:main::@3->main::@3#0] -- register_copy 
  //SEG33 main::@3
  b3:
  //SEG34 [15] (word~) main::$6 ← (word) main::line#1 + (byte) main::c#5 -- vwuz1=vwuz2_plus_vbuxx 
    txa
    clc
    adc line
    sta _6
    lda #0
    adc line+1
    sta _6+1
  //SEG35 [16] *((const byte*) main::screen#0 + (word~) main::$6) ← (byte) ' ' -- pbuc1_derefidx_vwuz1=vbuc2 
    lda #<screen
    clc
    adc _6
    sta !++1
    lda #>screen
    adc _6+1
    sta !++2
    lda #' '
  !:
    sta screen
  //SEG36 [17] (byte) main::c#3 ← ++ (byte) main::c#5 -- vbuxx=_inc_vbuxx 
    inx
  //SEG37 [18] if((byte) main::c#3<(byte/signed byte/word/signed word/dword/signed dword) 40) goto main::@3 -- vbuxx_lt_vbuc1_then_la1 
    cpx #$28
    bcc b3
  //SEG38 main::@return
  //SEG39 [19] return 
    rts
}

