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mirror of https://gitlab.com/camelot/kickc.git synced 2024-11-27 19:50:10 +00:00

Added pointer ANDing test case.

This commit is contained in:
jespergravgaard 2019-08-24 12:18:56 +02:00
parent 5d6fbcb42c
commit 5642c8d228
8 changed files with 787 additions and 0 deletions

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@ -0,0 +1 @@
lda {c1}+1

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@ -0,0 +1,6 @@
lda {c1}
and #<{c2}
sta {z1}
lda {c1}+1
and #>{c2}
sta {z1}+1

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@ -47,6 +47,11 @@ public class TestPrograms {
@Test
public void testLongPointer0() throws IOException, URISyntaxException {
compileAndCompare("pointer-anding.kc");
}
@Test
public void testPointerAnding() throws IOException, URISyntaxException {
compileAndCompare("long-pointer-0");
}

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@ -0,0 +1,12 @@
// Test binary ANDing pointers by Clay Cowgill
void main() {
int* pos_ptr = 0x0400;
byte* vram_ptr = 0x0428;
for( char i:0..2) {
*pos_ptr=(int)0x55AA;
*vram_ptr++=<(*pos_ptr&(int)0xAA55); // stores 0x00
*vram_ptr++=>*pos_ptr; // stores 0x55
pos_ptr++;
}
}

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@ -0,0 +1,61 @@
// Test binary ANDing pointers by Clay Cowgill
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
.const SIZEOF_SIGNED_WORD = 2
main: {
.label _2 = 6
.label vram_ptr = 4
.label pos_ptr = 2
ldx #0
lda #<$428
sta.z vram_ptr
lda #>$428
sta.z vram_ptr+1
lda #<$400
sta.z pos_ptr
lda #>$400
sta.z pos_ptr+1
b1:
ldy #0
lda #<$55aa
sta (pos_ptr),y
iny
lda #>$55aa
sta (pos_ptr),y
ldy #0
lda (pos_ptr),y
and #<$aa55
sta.z _2
iny
lda (pos_ptr),y
and #>$aa55
sta.z _2+1
lda.z _2
ldy #0
sta (vram_ptr),y
inc.z vram_ptr
bne !+
inc.z vram_ptr+1
!:
ldy #1
lda (pos_ptr),y
// stores 0x00
ldy #0
sta (vram_ptr),y
inc.z vram_ptr
bne !+
inc.z vram_ptr+1
!:
lda #SIZEOF_SIGNED_WORD
clc
adc.z pos_ptr
sta.z pos_ptr
bcc !+
inc.z pos_ptr+1
!:
inx
cpx #3
bne b1
rts
}

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@ -0,0 +1,31 @@
@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::@1
[5] (byte) main::i#2 ← phi( main/(byte) 0 main::@1/(byte) main::i#1 )
[5] (byte*) main::vram_ptr#3 ← phi( main/(byte*) 1064 main::@1/(byte*) main::vram_ptr#2 )
[5] (signed word*) main::pos_ptr#2 ← phi( main/(signed word*) 1024 main::@1/(signed word*) main::pos_ptr#1 )
[6] *((signed word*) main::pos_ptr#2) ← (signed word) $55aa
[7] (signed word~) main::$2 ← *((signed word*) main::pos_ptr#2) & (signed word) $aa55
[8] (byte~) main::$3 ← < (signed word~) main::$2
[9] *((byte*) main::vram_ptr#3) ← (byte~) main::$3
[10] (byte*) main::vram_ptr#1 ← ++ (byte*) main::vram_ptr#3
[11] (byte~) main::$4 ← > *((signed word*) main::pos_ptr#2)
[12] *((byte*) main::vram_ptr#1) ← (byte~) main::$4
[13] (byte*) main::vram_ptr#2 ← ++ (byte*) main::vram_ptr#1
[14] (signed word*) main::pos_ptr#1 ← (signed word*) main::pos_ptr#2 + (const byte) SIZEOF_SIGNED_WORD
[15] (byte) main::i#1 ← ++ (byte) main::i#2
[16] if((byte) main::i#1!=(byte) 3) goto main::@1
to:main::@return
main::@return: scope:[main] from main::@1
[17] return
to:@return

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@ -0,0 +1,644 @@
Fixing pointer increment (signed word*) main::pos_ptr ← ++ (signed word*) main::pos_ptr
Culled Empty Block (label) main::@2
CONTROL FLOW GRAPH SSA
@begin: scope:[] from
to:@1
main: scope:[main] from @1
(signed word*) main::pos_ptr#0 ← ((signed word*)) (number) $400
(byte*) main::vram_ptr#0 ← ((byte*)) (number) $428
(byte) main::i#0 ← (byte) 0
to:main::@1
main::@1: scope:[main] from main main::@1
(byte) main::i#2 ← phi( main/(byte) main::i#0 main::@1/(byte) main::i#1 )
(byte*) main::vram_ptr#3 ← phi( main/(byte*) main::vram_ptr#0 main::@1/(byte*) main::vram_ptr#2 )
(signed word*) main::pos_ptr#2 ← phi( main/(signed word*) main::pos_ptr#0 main::@1/(signed word*) main::pos_ptr#1 )
(signed word~) main::$0 ← ((signed word)) (number) $55aa
*((signed word*) main::pos_ptr#2) ← (signed word~) main::$0
(signed word~) main::$1 ← ((signed word)) (number) $aa55
(signed word~) main::$2 ← *((signed word*) main::pos_ptr#2) & (signed word~) main::$1
(byte~) main::$3 ← < (signed word~) main::$2
*((byte*) main::vram_ptr#3) ← (byte~) main::$3
(byte*) main::vram_ptr#1 ← ++ (byte*) main::vram_ptr#3
(byte~) main::$4 ← > *((signed word*) main::pos_ptr#2)
*((byte*) main::vram_ptr#1) ← (byte~) main::$4
(byte*) main::vram_ptr#2 ← ++ (byte*) main::vram_ptr#1
(signed word*) main::pos_ptr#1 ← (signed word*) main::pos_ptr#2 + (const byte) SIZEOF_SIGNED_WORD
(byte) main::i#1 ← (byte) main::i#2 + rangenext(0,2)
(bool~) main::$5 ← (byte) main::i#1 != rangelast(0,2)
if((bool~) main::$5) goto main::@1
to:main::@return
main::@return: scope:[main] from main::@1
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
(const byte) SIZEOF_SIGNED_WORD = (byte) 2
(void()) main()
(signed word~) main::$0
(signed word~) main::$1
(signed word~) main::$2
(byte~) main::$3
(byte~) main::$4
(bool~) main::$5
(label) main::@1
(label) main::@return
(byte) main::i
(byte) main::i#0
(byte) main::i#1
(byte) main::i#2
(signed word*) main::pos_ptr
(signed word*) main::pos_ptr#0
(signed word*) main::pos_ptr#1
(signed word*) main::pos_ptr#2
(byte*) main::vram_ptr
(byte*) main::vram_ptr#0
(byte*) main::vram_ptr#1
(byte*) main::vram_ptr#2
(byte*) main::vram_ptr#3
Inlining cast (signed word*) main::pos_ptr#0 ← (signed word*)(number) $400
Inlining cast (byte*) main::vram_ptr#0 ← (byte*)(number) $428
Inlining cast (signed word~) main::$0 ← (signed word)(number) $55aa
Inlining cast (signed word~) main::$1 ← (signed word)(number) $aa55
Successful SSA optimization Pass2InlineCast
Simplifying constant pointer cast (signed word*) 1024
Simplifying constant pointer cast (byte*) 1064
Simplifying constant integer cast $55aa
Simplifying constant integer cast $aa55
Successful SSA optimization PassNCastSimplification
Simple Condition (bool~) main::$5 [17] if((byte) main::i#1!=rangelast(0,2)) goto main::@1
Successful SSA optimization Pass2ConditionalJumpSimplification
Constant (const signed word*) main::pos_ptr#0 = (signed word*) 1024
Constant (const byte*) main::vram_ptr#0 = (byte*) 1064
Constant (const byte) main::i#0 = 0
Constant (const signed word) main::$0 = $55aa
Constant (const signed word) main::$1 = $aa55
Successful SSA optimization Pass2ConstantIdentification
Resolved ranged next value [15] main::i#1 ← ++ main::i#2 to ++
Resolved ranged comparison value [17] if(main::i#1!=rangelast(0,2)) goto main::@1 to (number) 3
Adding number conversion cast (unumber) 3 in if((byte) main::i#1!=(number) 3) goto main::@1
Successful SSA optimization PassNAddNumberTypeConversions
Simplifying constant integer cast 3
Successful SSA optimization PassNCastSimplification
Finalized unsigned number type (byte) 3
Successful SSA optimization PassNFinalizeNumberTypeConversions
Inlining constant with var siblings (const signed word*) main::pos_ptr#0
Inlining constant with var siblings (const byte*) main::vram_ptr#0
Inlining constant with var siblings (const byte) main::i#0
Constant inlined main::vram_ptr#0 = (byte*) 1064
Constant inlined main::i#0 = (byte) 0
Constant inlined main::$1 = (signed word) $aa55
Constant inlined main::pos_ptr#0 = (signed word*) 1024
Constant inlined main::$0 = (signed word) $55aa
Successful SSA optimization Pass2ConstantInlining
Added new block during phi lifting main::@3(between main::@1 and main::@1)
Adding NOP phi() at start of @begin
Adding NOP phi() at start of @1
Adding NOP phi() at start of @2
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 [19] main::pos_ptr#3 ← main::pos_ptr#1
Coalesced [20] main::vram_ptr#4 ← main::vram_ptr#2
Coalesced [21] main::i#3 ← main::i#1
Coalesced down to 3 phi equivalence classes
Culled Empty Block (label) @2
Culled Empty Block (label) 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
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::@1
[5] (byte) main::i#2 ← phi( main/(byte) 0 main::@1/(byte) main::i#1 )
[5] (byte*) main::vram_ptr#3 ← phi( main/(byte*) 1064 main::@1/(byte*) main::vram_ptr#2 )
[5] (signed word*) main::pos_ptr#2 ← phi( main/(signed word*) 1024 main::@1/(signed word*) main::pos_ptr#1 )
[6] *((signed word*) main::pos_ptr#2) ← (signed word) $55aa
[7] (signed word~) main::$2 ← *((signed word*) main::pos_ptr#2) & (signed word) $aa55
[8] (byte~) main::$3 ← < (signed word~) main::$2
[9] *((byte*) main::vram_ptr#3) ← (byte~) main::$3
[10] (byte*) main::vram_ptr#1 ← ++ (byte*) main::vram_ptr#3
[11] (byte~) main::$4 ← > *((signed word*) main::pos_ptr#2)
[12] *((byte*) main::vram_ptr#1) ← (byte~) main::$4
[13] (byte*) main::vram_ptr#2 ← ++ (byte*) main::vram_ptr#1
[14] (signed word*) main::pos_ptr#1 ← (signed word*) main::pos_ptr#2 + (const byte) SIZEOF_SIGNED_WORD
[15] (byte) main::i#1 ← ++ (byte) main::i#2
[16] if((byte) main::i#1!=(byte) 3) goto main::@1
to:main::@return
main::@return: scope:[main] from main::@1
[17] return
to:@return
VARIABLE REGISTER WEIGHTS
(void()) main()
(signed word~) main::$2 22.0
(byte~) main::$3 22.0
(byte~) main::$4 22.0
(byte) main::i
(byte) main::i#1 16.5
(byte) main::i#2 2.2
(signed word*) main::pos_ptr
(signed word*) main::pos_ptr#1 7.333333333333333
(signed word*) main::pos_ptr#2 6.111111111111112
(byte*) main::vram_ptr
(byte*) main::vram_ptr#1 11.0
(byte*) main::vram_ptr#2 5.5
(byte*) main::vram_ptr#3 6.6000000000000005
Initial phi equivalence classes
[ main::pos_ptr#2 main::pos_ptr#1 ]
[ main::vram_ptr#3 main::vram_ptr#2 ]
[ main::i#2 main::i#1 ]
Added variable main::$2 to zero page equivalence class [ main::$2 ]
Added variable main::$3 to zero page equivalence class [ main::$3 ]
Added variable main::vram_ptr#1 to zero page equivalence class [ main::vram_ptr#1 ]
Added variable main::$4 to zero page equivalence class [ main::$4 ]
Complete equivalence classes
[ main::pos_ptr#2 main::pos_ptr#1 ]
[ main::vram_ptr#3 main::vram_ptr#2 ]
[ main::i#2 main::i#1 ]
[ main::$2 ]
[ main::$3 ]
[ main::vram_ptr#1 ]
[ main::$4 ]
Allocated zp ZP_WORD:2 [ main::pos_ptr#2 main::pos_ptr#1 ]
Allocated zp ZP_WORD:4 [ main::vram_ptr#3 main::vram_ptr#2 ]
Allocated zp ZP_BYTE:6 [ main::i#2 main::i#1 ]
Allocated zp ZP_WORD:7 [ main::$2 ]
Allocated zp ZP_BYTE:9 [ main::$3 ]
Allocated zp ZP_WORD:10 [ main::vram_ptr#1 ]
Allocated zp ZP_BYTE:12 [ main::$4 ]
INITIAL ASM
Target platform is c64basic
// File Comments
// Test binary ANDing pointers by Clay Cowgill
// Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
// Global Constants & labels
.const SIZEOF_SIGNED_WORD = 2
// @begin
bbegin:
// [1] phi from @begin to @1 [phi:@begin->@1]
b1_from_bbegin:
jmp b1
// @1
b1:
// [2] call main
// [4] phi from @1 to main [phi:@1->main]
main_from_b1:
jsr main
// [3] phi from @1 to @end [phi:@1->@end]
bend_from_b1:
jmp bend
// @end
bend:
// main
main: {
.label _2 = 7
.label _3 = 9
.label _4 = $c
.label vram_ptr = $a
.label vram_ptr_2 = 4
.label pos_ptr = 2
.label i = 6
.label vram_ptr_3 = 4
// [5] phi from main to main::@1 [phi:main->main::@1]
b1_from_main:
// [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1
lda #0
sta.z i
// [5] phi (byte*) main::vram_ptr#3 = (byte*) 1064 [phi:main->main::@1#1] -- pbuz1=pbuc1
lda #<$428
sta.z vram_ptr_3
lda #>$428
sta.z vram_ptr_3+1
// [5] phi (signed word*) main::pos_ptr#2 = (signed word*) 1024 [phi:main->main::@1#2] -- pwsz1=pwsc1
lda #<$400
sta.z pos_ptr
lda #>$400
sta.z pos_ptr+1
jmp b1
// [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
b1_from_b1:
// [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@1->main::@1#0] -- register_copy
// [5] phi (byte*) main::vram_ptr#3 = (byte*) main::vram_ptr#2 [phi:main::@1->main::@1#1] -- register_copy
// [5] phi (signed word*) main::pos_ptr#2 = (signed word*) main::pos_ptr#1 [phi:main::@1->main::@1#2] -- register_copy
jmp b1
// main::@1
b1:
// [6] *((signed word*) main::pos_ptr#2) ← (signed word) $55aa -- _deref_pwsz1=vwsc1
ldy #0
lda #<$55aa
sta (pos_ptr),y
iny
lda #>$55aa
sta (pos_ptr),y
// [7] (signed word~) main::$2 ← *((signed word*) main::pos_ptr#2) & (signed word) $aa55 -- vwsz1=_deref_pwsz2_band_vwsc1
ldy #0
lda (pos_ptr),y
and #<$aa55
sta.z _2
iny
lda (pos_ptr),y
and #>$aa55
sta.z _2+1
// [8] (byte~) main::$3 ← < (signed word~) main::$2 -- vbuz1=_lo_vwsz2
lda.z _2
sta.z _3
// [9] *((byte*) main::vram_ptr#3) ← (byte~) main::$3 -- _deref_pbuz1=vbuz2
lda.z _3
ldy #0
sta (vram_ptr_3),y
// [10] (byte*) main::vram_ptr#1 ← ++ (byte*) main::vram_ptr#3 -- pbuz1=_inc_pbuz2
lda.z vram_ptr_3
clc
adc #1
sta.z vram_ptr
lda.z vram_ptr_3+1
adc #0
sta.z vram_ptr+1
// [11] (byte~) main::$4 ← > *((signed word*) main::pos_ptr#2) -- vbuz1=_hi__deref_pwsz2
ldy #1
lda (pos_ptr),y
sta.z _4
// [12] *((byte*) main::vram_ptr#1) ← (byte~) main::$4 -- _deref_pbuz1=vbuz2
// stores 0x00
lda.z _4
ldy #0
sta (vram_ptr),y
// [13] (byte*) main::vram_ptr#2 ← ++ (byte*) main::vram_ptr#1 -- pbuz1=_inc_pbuz2
lda.z vram_ptr
clc
adc #1
sta.z vram_ptr_2
lda.z vram_ptr+1
adc #0
sta.z vram_ptr_2+1
// [14] (signed word*) main::pos_ptr#1 ← (signed word*) main::pos_ptr#2 + (const byte) SIZEOF_SIGNED_WORD -- pwsz1=pwsz1_plus_vbuc1
lda #SIZEOF_SIGNED_WORD
clc
adc.z pos_ptr
sta.z pos_ptr
bcc !+
inc.z pos_ptr+1
!:
// [15] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuz1=_inc_vbuz1
inc.z i
// [16] if((byte) main::i#1!=(byte) 3) goto main::@1 -- vbuz1_neq_vbuc1_then_la1
lda #3
cmp.z i
bne b1_from_b1
jmp breturn
// main::@return
breturn:
// [17] return
rts
}
// File Data
REGISTER UPLIFT POTENTIAL REGISTERS
Statement [6] *((signed word*) main::pos_ptr#2) ← (signed word) $55aa [ main::pos_ptr#2 main::vram_ptr#3 main::i#2 ] ( main:2 [ main::pos_ptr#2 main::vram_ptr#3 main::i#2 ] ) always clobbers reg byte a reg byte y
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:6 [ main::i#2 main::i#1 ]
Removing always clobbered register reg byte y as potential for zp ZP_BYTE:6 [ main::i#2 main::i#1 ]
Statement [7] (signed word~) main::$2 ← *((signed word*) main::pos_ptr#2) & (signed word) $aa55 [ main::pos_ptr#2 main::vram_ptr#3 main::i#2 main::$2 ] ( main:2 [ main::pos_ptr#2 main::vram_ptr#3 main::i#2 main::$2 ] ) always clobbers reg byte a reg byte y
Statement [8] (byte~) main::$3 ← < (signed word~) main::$2 [ main::pos_ptr#2 main::vram_ptr#3 main::i#2 main::$3 ] ( main:2 [ main::pos_ptr#2 main::vram_ptr#3 main::i#2 main::$3 ] ) always clobbers reg byte a
Statement [9] *((byte*) main::vram_ptr#3) ← (byte~) main::$3 [ main::pos_ptr#2 main::vram_ptr#3 main::i#2 ] ( main:2 [ main::pos_ptr#2 main::vram_ptr#3 main::i#2 ] ) always clobbers reg byte y
Statement [10] (byte*) main::vram_ptr#1 ← ++ (byte*) main::vram_ptr#3 [ main::pos_ptr#2 main::i#2 main::vram_ptr#1 ] ( main:2 [ main::pos_ptr#2 main::i#2 main::vram_ptr#1 ] ) always clobbers reg byte a
Statement [11] (byte~) main::$4 ← > *((signed word*) main::pos_ptr#2) [ main::pos_ptr#2 main::i#2 main::vram_ptr#1 main::$4 ] ( main:2 [ main::pos_ptr#2 main::i#2 main::vram_ptr#1 main::$4 ] ) always clobbers reg byte a reg byte y
Statement [12] *((byte*) main::vram_ptr#1) ← (byte~) main::$4 [ main::pos_ptr#2 main::i#2 main::vram_ptr#1 ] ( main:2 [ main::pos_ptr#2 main::i#2 main::vram_ptr#1 ] ) always clobbers reg byte y
Statement [13] (byte*) main::vram_ptr#2 ← ++ (byte*) main::vram_ptr#1 [ main::pos_ptr#2 main::i#2 main::vram_ptr#2 ] ( main:2 [ main::pos_ptr#2 main::i#2 main::vram_ptr#2 ] ) always clobbers reg byte a
Statement [14] (signed word*) main::pos_ptr#1 ← (signed word*) main::pos_ptr#2 + (const byte) SIZEOF_SIGNED_WORD [ main::i#2 main::pos_ptr#1 main::vram_ptr#2 ] ( main:2 [ main::i#2 main::pos_ptr#1 main::vram_ptr#2 ] ) always clobbers reg byte a
Statement [6] *((signed word*) main::pos_ptr#2) ← (signed word) $55aa [ main::pos_ptr#2 main::vram_ptr#3 main::i#2 ] ( main:2 [ main::pos_ptr#2 main::vram_ptr#3 main::i#2 ] ) always clobbers reg byte a reg byte y
Statement [7] (signed word~) main::$2 ← *((signed word*) main::pos_ptr#2) & (signed word) $aa55 [ main::pos_ptr#2 main::vram_ptr#3 main::i#2 main::$2 ] ( main:2 [ main::pos_ptr#2 main::vram_ptr#3 main::i#2 main::$2 ] ) always clobbers reg byte a reg byte y
Statement [8] (byte~) main::$3 ← < (signed word~) main::$2 [ main::pos_ptr#2 main::vram_ptr#3 main::i#2 main::$3 ] ( main:2 [ main::pos_ptr#2 main::vram_ptr#3 main::i#2 main::$3 ] ) always clobbers reg byte a
Statement [9] *((byte*) main::vram_ptr#3) ← (byte~) main::$3 [ main::pos_ptr#2 main::vram_ptr#3 main::i#2 ] ( main:2 [ main::pos_ptr#2 main::vram_ptr#3 main::i#2 ] ) always clobbers reg byte y
Statement [10] (byte*) main::vram_ptr#1 ← ++ (byte*) main::vram_ptr#3 [ main::pos_ptr#2 main::i#2 main::vram_ptr#1 ] ( main:2 [ main::pos_ptr#2 main::i#2 main::vram_ptr#1 ] ) always clobbers reg byte a
Statement [11] (byte~) main::$4 ← > *((signed word*) main::pos_ptr#2) [ main::pos_ptr#2 main::i#2 main::vram_ptr#1 main::$4 ] ( main:2 [ main::pos_ptr#2 main::i#2 main::vram_ptr#1 main::$4 ] ) always clobbers reg byte a reg byte y
Statement [12] *((byte*) main::vram_ptr#1) ← (byte~) main::$4 [ main::pos_ptr#2 main::i#2 main::vram_ptr#1 ] ( main:2 [ main::pos_ptr#2 main::i#2 main::vram_ptr#1 ] ) always clobbers reg byte y
Statement [13] (byte*) main::vram_ptr#2 ← ++ (byte*) main::vram_ptr#1 [ main::pos_ptr#2 main::i#2 main::vram_ptr#2 ] ( main:2 [ main::pos_ptr#2 main::i#2 main::vram_ptr#2 ] ) always clobbers reg byte a
Statement [14] (signed word*) main::pos_ptr#1 ← (signed word*) main::pos_ptr#2 + (const byte) SIZEOF_SIGNED_WORD [ main::i#2 main::pos_ptr#1 main::vram_ptr#2 ] ( main:2 [ main::i#2 main::pos_ptr#1 main::vram_ptr#2 ] ) always clobbers reg byte a
Potential registers zp ZP_WORD:2 [ main::pos_ptr#2 main::pos_ptr#1 ] : zp ZP_WORD:2 ,
Potential registers zp ZP_WORD:4 [ main::vram_ptr#3 main::vram_ptr#2 ] : zp ZP_WORD:4 ,
Potential registers zp ZP_BYTE:6 [ main::i#2 main::i#1 ] : zp ZP_BYTE:6 , reg byte x ,
Potential registers zp ZP_WORD:7 [ main::$2 ] : zp ZP_WORD:7 ,
Potential registers zp ZP_BYTE:9 [ main::$3 ] : zp ZP_BYTE:9 , reg byte a , reg byte x , reg byte y ,
Potential registers zp ZP_WORD:10 [ main::vram_ptr#1 ] : zp ZP_WORD:10 ,
Potential registers zp ZP_BYTE:12 [ main::$4 ] : zp ZP_BYTE:12 , reg byte a , reg byte x , reg byte y ,
REGISTER UPLIFT SCOPES
Uplift Scope [main] 22: zp ZP_WORD:7 [ main::$2 ] 22: zp ZP_BYTE:9 [ main::$3 ] 22: zp ZP_BYTE:12 [ main::$4 ] 18.7: zp ZP_BYTE:6 [ main::i#2 main::i#1 ] 13.44: zp ZP_WORD:2 [ main::pos_ptr#2 main::pos_ptr#1 ] 12.1: zp ZP_WORD:4 [ main::vram_ptr#3 main::vram_ptr#2 ] 11: zp ZP_WORD:10 [ main::vram_ptr#1 ]
Uplift Scope []
Uplifting [main] best 1643 combination zp ZP_WORD:7 [ main::$2 ] reg byte a [ main::$3 ] reg byte a [ main::$4 ] reg byte x [ main::i#2 main::i#1 ] zp ZP_WORD:2 [ main::pos_ptr#2 main::pos_ptr#1 ] zp ZP_WORD:4 [ main::vram_ptr#3 main::vram_ptr#2 ] zp ZP_WORD:10 [ main::vram_ptr#1 ]
Uplifting [] best 1643 combination
Coalescing zero page register [ zp ZP_WORD:4 [ main::vram_ptr#3 main::vram_ptr#2 ] ] with [ zp ZP_WORD:10 [ main::vram_ptr#1 ] ] - score: 2
Allocated (was zp ZP_WORD:7) zp ZP_WORD:6 [ main::$2 ]
ASSEMBLER BEFORE OPTIMIZATION
// File Comments
// Test binary ANDing pointers by Clay Cowgill
// Upstart
.pc = $801 "Basic"
:BasicUpstart(bbegin)
.pc = $80d "Program"
// Global Constants & labels
.const SIZEOF_SIGNED_WORD = 2
// @begin
bbegin:
// [1] phi from @begin to @1 [phi:@begin->@1]
b1_from_bbegin:
jmp b1
// @1
b1:
// [2] call main
// [4] phi from @1 to main [phi:@1->main]
main_from_b1:
jsr main
// [3] phi from @1 to @end [phi:@1->@end]
bend_from_b1:
jmp bend
// @end
bend:
// main
main: {
.label _2 = 6
.label vram_ptr = 4
.label pos_ptr = 2
// [5] phi from main to main::@1 [phi:main->main::@1]
b1_from_main:
// [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuxx=vbuc1
ldx #0
// [5] phi (byte*) main::vram_ptr#3 = (byte*) 1064 [phi:main->main::@1#1] -- pbuz1=pbuc1
lda #<$428
sta.z vram_ptr
lda #>$428
sta.z vram_ptr+1
// [5] phi (signed word*) main::pos_ptr#2 = (signed word*) 1024 [phi:main->main::@1#2] -- pwsz1=pwsc1
lda #<$400
sta.z pos_ptr
lda #>$400
sta.z pos_ptr+1
jmp b1
// [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
b1_from_b1:
// [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@1->main::@1#0] -- register_copy
// [5] phi (byte*) main::vram_ptr#3 = (byte*) main::vram_ptr#2 [phi:main::@1->main::@1#1] -- register_copy
// [5] phi (signed word*) main::pos_ptr#2 = (signed word*) main::pos_ptr#1 [phi:main::@1->main::@1#2] -- register_copy
jmp b1
// main::@1
b1:
// [6] *((signed word*) main::pos_ptr#2) ← (signed word) $55aa -- _deref_pwsz1=vwsc1
ldy #0
lda #<$55aa
sta (pos_ptr),y
iny
lda #>$55aa
sta (pos_ptr),y
// [7] (signed word~) main::$2 ← *((signed word*) main::pos_ptr#2) & (signed word) $aa55 -- vwsz1=_deref_pwsz2_band_vwsc1
ldy #0
lda (pos_ptr),y
and #<$aa55
sta.z _2
iny
lda (pos_ptr),y
and #>$aa55
sta.z _2+1
// [8] (byte~) main::$3 ← < (signed word~) main::$2 -- vbuaa=_lo_vwsz1
lda.z _2
// [9] *((byte*) main::vram_ptr#3) ← (byte~) main::$3 -- _deref_pbuz1=vbuaa
ldy #0
sta (vram_ptr),y
// [10] (byte*) main::vram_ptr#1 ← ++ (byte*) main::vram_ptr#3 -- pbuz1=_inc_pbuz1
inc.z vram_ptr
bne !+
inc.z vram_ptr+1
!:
// [11] (byte~) main::$4 ← > *((signed word*) main::pos_ptr#2) -- vbuaa=_hi__deref_pwsz1
ldy #1
lda (pos_ptr),y
// [12] *((byte*) main::vram_ptr#1) ← (byte~) main::$4 -- _deref_pbuz1=vbuaa
// stores 0x00
ldy #0
sta (vram_ptr),y
// [13] (byte*) main::vram_ptr#2 ← ++ (byte*) main::vram_ptr#1 -- pbuz1=_inc_pbuz1
inc.z vram_ptr
bne !+
inc.z vram_ptr+1
!:
// [14] (signed word*) main::pos_ptr#1 ← (signed word*) main::pos_ptr#2 + (const byte) SIZEOF_SIGNED_WORD -- pwsz1=pwsz1_plus_vbuc1
lda #SIZEOF_SIGNED_WORD
clc
adc.z pos_ptr
sta.z pos_ptr
bcc !+
inc.z pos_ptr+1
!:
// [15] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx
inx
// [16] if((byte) main::i#1!=(byte) 3) goto main::@1 -- vbuxx_neq_vbuc1_then_la1
cpx #3
bne b1_from_b1
jmp breturn
// main::@return
breturn:
// [17] return
rts
}
// File Data
ASSEMBLER OPTIMIZATIONS
Removing instruction jmp b1
Removing instruction jmp bend
Removing instruction jmp b1
Removing instruction jmp breturn
Succesful ASM optimization Pass5NextJumpElimination
Replacing label b1_from_b1 with b1
Removing instruction b1_from_bbegin:
Removing instruction b1:
Removing instruction main_from_b1:
Removing instruction bend_from_b1:
Removing instruction b1_from_b1:
Succesful ASM optimization Pass5RedundantLabelElimination
Removing instruction bend:
Removing instruction b1_from_main:
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
Succesful ASM optimization Pass5NextJumpElimination
Removing instruction bbegin:
Succesful ASM optimization Pass5UnusedLabelElimination
FINAL SYMBOL TABLE
(label) @1
(label) @begin
(label) @end
(const byte) SIZEOF_SIGNED_WORD SIZEOF_SIGNED_WORD = (byte) 2
(void()) main()
(signed word~) main::$2 $2 zp ZP_WORD:6 22.0
(byte~) main::$3 reg byte a 22.0
(byte~) main::$4 reg byte a 22.0
(label) main::@1
(label) main::@return
(byte) main::i
(byte) main::i#1 reg byte x 16.5
(byte) main::i#2 reg byte x 2.2
(signed word*) main::pos_ptr
(signed word*) main::pos_ptr#1 pos_ptr zp ZP_WORD:2 7.333333333333333
(signed word*) main::pos_ptr#2 pos_ptr zp ZP_WORD:2 6.111111111111112
(byte*) main::vram_ptr
(byte*) main::vram_ptr#1 vram_ptr zp ZP_WORD:4 11.0
(byte*) main::vram_ptr#2 vram_ptr zp ZP_WORD:4 5.5
(byte*) main::vram_ptr#3 vram_ptr zp ZP_WORD:4 6.6000000000000005
zp ZP_WORD:2 [ main::pos_ptr#2 main::pos_ptr#1 ]
zp ZP_WORD:4 [ main::vram_ptr#3 main::vram_ptr#2 main::vram_ptr#1 ]
reg byte x [ main::i#2 main::i#1 ]
zp ZP_WORD:6 [ main::$2 ]
reg byte a [ main::$3 ]
reg byte a [ main::$4 ]
FINAL ASSEMBLER
Score: 1431
// File Comments
// Test binary ANDing pointers by Clay Cowgill
// Upstart
.pc = $801 "Basic"
:BasicUpstart(main)
.pc = $80d "Program"
// Global Constants & labels
.const SIZEOF_SIGNED_WORD = 2
// @begin
// [1] phi from @begin to @1 [phi:@begin->@1]
// @1
// [2] call main
// [4] phi from @1 to main [phi:@1->main]
// [3] phi from @1 to @end [phi:@1->@end]
// @end
// main
main: {
.label _2 = 6
.label vram_ptr = 4
.label pos_ptr = 2
// [5] phi from main to main::@1 [phi:main->main::@1]
// [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#0] -- vbuxx=vbuc1
ldx #0
// [5] phi (byte*) main::vram_ptr#3 = (byte*) 1064 [phi:main->main::@1#1] -- pbuz1=pbuc1
lda #<$428
sta.z vram_ptr
lda #>$428
sta.z vram_ptr+1
// [5] phi (signed word*) main::pos_ptr#2 = (signed word*) 1024 [phi:main->main::@1#2] -- pwsz1=pwsc1
lda #<$400
sta.z pos_ptr
lda #>$400
sta.z pos_ptr+1
// [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
// [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@1->main::@1#0] -- register_copy
// [5] phi (byte*) main::vram_ptr#3 = (byte*) main::vram_ptr#2 [phi:main::@1->main::@1#1] -- register_copy
// [5] phi (signed word*) main::pos_ptr#2 = (signed word*) main::pos_ptr#1 [phi:main::@1->main::@1#2] -- register_copy
// main::@1
b1:
// *pos_ptr=(int)0x55AA
// [6] *((signed word*) main::pos_ptr#2) ← (signed word) $55aa -- _deref_pwsz1=vwsc1
ldy #0
lda #<$55aa
sta (pos_ptr),y
iny
lda #>$55aa
sta (pos_ptr),y
// *pos_ptr&(int)0xAA55
// [7] (signed word~) main::$2 ← *((signed word*) main::pos_ptr#2) & (signed word) $aa55 -- vwsz1=_deref_pwsz2_band_vwsc1
ldy #0
lda (pos_ptr),y
and #<$aa55
sta.z _2
iny
lda (pos_ptr),y
and #>$aa55
sta.z _2+1
// <(*pos_ptr&(int)0xAA55)
// [8] (byte~) main::$3 ← < (signed word~) main::$2 -- vbuaa=_lo_vwsz1
lda.z _2
// *vram_ptr++=<(*pos_ptr&(int)0xAA55)
// [9] *((byte*) main::vram_ptr#3) ← (byte~) main::$3 -- _deref_pbuz1=vbuaa
ldy #0
sta (vram_ptr),y
// *vram_ptr++=<(*pos_ptr&(int)0xAA55);
// [10] (byte*) main::vram_ptr#1 ← ++ (byte*) main::vram_ptr#3 -- pbuz1=_inc_pbuz1
inc.z vram_ptr
bne !+
inc.z vram_ptr+1
!:
// >*pos_ptr
// [11] (byte~) main::$4 ← > *((signed word*) main::pos_ptr#2) -- vbuaa=_hi__deref_pwsz1
ldy #1
lda (pos_ptr),y
// *vram_ptr++=>*pos_ptr
// [12] *((byte*) main::vram_ptr#1) ← (byte~) main::$4 -- _deref_pbuz1=vbuaa
// stores 0x00
ldy #0
sta (vram_ptr),y
// *vram_ptr++=>*pos_ptr;
// [13] (byte*) main::vram_ptr#2 ← ++ (byte*) main::vram_ptr#1 -- pbuz1=_inc_pbuz1
inc.z vram_ptr
bne !+
inc.z vram_ptr+1
!:
// pos_ptr++;
// [14] (signed word*) main::pos_ptr#1 ← (signed word*) main::pos_ptr#2 + (const byte) SIZEOF_SIGNED_WORD -- pwsz1=pwsz1_plus_vbuc1
lda #SIZEOF_SIGNED_WORD
clc
adc.z pos_ptr
sta.z pos_ptr
bcc !+
inc.z pos_ptr+1
!:
// for( char i:0..2)
// [15] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx
inx
// [16] if((byte) main::i#1!=(byte) 3) goto main::@1 -- vbuxx_neq_vbuc1_then_la1
cpx #3
bne b1
// main::@return
// }
// [17] return
rts
}
// File Data

View File

@ -0,0 +1,27 @@
(label) @1
(label) @begin
(label) @end
(const byte) SIZEOF_SIGNED_WORD SIZEOF_SIGNED_WORD = (byte) 2
(void()) main()
(signed word~) main::$2 $2 zp ZP_WORD:6 22.0
(byte~) main::$3 reg byte a 22.0
(byte~) main::$4 reg byte a 22.0
(label) main::@1
(label) main::@return
(byte) main::i
(byte) main::i#1 reg byte x 16.5
(byte) main::i#2 reg byte x 2.2
(signed word*) main::pos_ptr
(signed word*) main::pos_ptr#1 pos_ptr zp ZP_WORD:2 7.333333333333333
(signed word*) main::pos_ptr#2 pos_ptr zp ZP_WORD:2 6.111111111111112
(byte*) main::vram_ptr
(byte*) main::vram_ptr#1 vram_ptr zp ZP_WORD:4 11.0
(byte*) main::vram_ptr#2 vram_ptr zp ZP_WORD:4 5.5
(byte*) main::vram_ptr#3 vram_ptr zp ZP_WORD:4 6.6000000000000005
zp ZP_WORD:2 [ main::pos_ptr#2 main::pos_ptr#1 ]
zp ZP_WORD:4 [ main::vram_ptr#3 main::vram_ptr#2 main::vram_ptr#1 ]
reg byte x [ main::i#2 main::i#1 ]
zp ZP_WORD:6 [ main::$2 ]
reg byte a [ main::$3 ]
reg byte a [ main::$4 ]