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Pointers to pointers working. Closes #156
This commit is contained in:
jespergravgaard
parent
a334855da8
commit
e1cf957b2f
6
src/main/fragment/_deref_pptz1=pbuz2.asm
Normal file
6
src/main/fragment/_deref_pptz1=pbuz2.asm
Normal file
@ -0,0 +1,6 @@
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ldy #0
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lda {z2}
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sta ({z1}),y
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iny
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lda {z2}+1
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sta ({z1}),y
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@ -32,6 +32,11 @@ public class TestPrograms {
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public TestPrograms() {
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public TestPrograms() {
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}
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}
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@Test
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public void testPointerPointer3() throws IOException, URISyntaxException {
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compileAndCompare("pointer-pointer-3");
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}
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@Test
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@Test
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public void testPointerPointer2() throws IOException, URISyntaxException {
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public void testPointerPointer2() throws IOException, URISyntaxException {
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compileAndCompare("pointer-pointer-2");
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compileAndCompare("pointer-pointer-2");
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18
src/test/kc/pointer-pointer-3.kc
Normal file
18
src/test/kc/pointer-pointer-3.kc
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@ -0,0 +1,18 @@
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// Tests pointer to pointer in a more complex setup
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byte* screen = $400;
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byte* screen1 = $400;
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byte* screen2 = $400+40;
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void main() {
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setscreen(&screen, screen1);
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screen[0] = 'a';
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setscreen(&screen, screen2);
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screen[0] = 'a';
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}
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void setscreen(byte** screen, byte* val) {
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*screen = val;
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}
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53
src/test/ref/pointer-pointer-3.asm
Normal file
53
src/test/ref/pointer-pointer-3.asm
Normal file
@ -0,0 +1,53 @@
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// Tests pointer to pointer in a more complex setup
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.pc = $801 "Basic"
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:BasicUpstart(bbegin)
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.pc = $80d "Program"
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.label screen1 = $400
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.label screen2 = $400+$28
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.label screen = 6
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bbegin:
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lda #<$400
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sta screen
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lda #>$400
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sta screen+1
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jsr main
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rts
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main: {
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lda #<screen
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sta setscreen.screen
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lda #>screen
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sta setscreen.screen+1
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lda #<screen1
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sta setscreen.val
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lda #>screen1
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sta setscreen.val+1
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jsr setscreen
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lda #'a'
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ldy #0
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sta (screen),y
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lda #<screen
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sta setscreen.screen
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lda #>screen
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sta setscreen.screen+1
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lda #<screen2
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sta setscreen.val
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lda #>screen2
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sta setscreen.val+1
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jsr setscreen
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lda #'a'
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ldy #0
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sta (screen),y
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rts
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}
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// setscreen(byte** zeropage(4) screen, byte* zeropage(2) val)
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setscreen: {
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.label val = 2
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.label screen = 4
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ldy #0
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lda val
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sta (screen),y
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iny
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lda val+1
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sta (screen),y
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rts
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}
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31
src/test/ref/pointer-pointer-3.cfg
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31
src/test/ref/pointer-pointer-3.cfg
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@ -0,0 +1,31 @@
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@begin: scope:[] from
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[0] (byte*) screen#0 ← ((byte*))(word/signed word/dword/signed dword) $400
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to:@1
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@1: scope:[] from @begin
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[1] phi()
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[2] call main
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to:@end
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@end: scope:[] from @1
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[3] phi()
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main: scope:[main] from @1
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[4] phi()
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[5] call setscreen
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to:main::@1
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main::@1: scope:[main] from main
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[6] *((byte*) screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte) 'a'
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[7] call setscreen
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to:main::@2
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main::@2: scope:[main] from main::@1
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[8] *((byte*) screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte) 'a'
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to:main::@return
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main::@return: scope:[main] from main::@2
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[9] return
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to:@return
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setscreen: scope:[setscreen] from main main::@1
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[10] (byte**) setscreen::screen#2 ← phi( main/&(byte*) screen#0 main::@1/&(byte*) screen#0 )
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[10] (byte*) setscreen::val#2 ← phi( main/(const byte*) screen1#0 main::@1/(const byte*) screen2#0 )
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[11] *((byte**) setscreen::screen#2) ← (byte*) setscreen::val#2
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to:setscreen::@return
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setscreen::@return: scope:[setscreen] from setscreen
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[12] return
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to:@return
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548
src/test/ref/pointer-pointer-3.log
Normal file
548
src/test/ref/pointer-pointer-3.log
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@ -0,0 +1,548 @@
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Identified constant variable (byte*) screen1
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CONTROL FLOW GRAPH SSA
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@begin: scope:[] from
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(byte*) screen#0 ← ((byte*)) (word/signed word/dword/signed dword) $400
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(byte*) screen1#0 ← ((byte*)) (word/signed word/dword/signed dword) $400
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(word/signed word/dword/signed dword~) $0 ← (word/signed word/dword/signed dword) $400 + (byte/signed byte/word/signed word/dword/signed dword) $28
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(byte*) screen2#0 ← ((byte*)) (word/signed word/dword/signed dword~) $0
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to:@2
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main: scope:[main] from @2
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(byte*) screen2#2 ← phi( @2/(byte*) screen2#3 )
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(byte*) screen#1 ← phi( @2/(byte*) screen#4 )
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(byte**~) main::$0 ← & (byte*) screen#1
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(byte**) setscreen::screen#0 ← (byte**~) main::$0
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(byte*) setscreen::val#0 ← (byte*) screen1#0
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call setscreen
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to:main::@1
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main::@1: scope:[main] from main
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(byte*) screen2#1 ← phi( main/(byte*) screen2#2 )
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(byte*) screen#2 ← phi( main/(byte*) screen#1 )
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*((byte*) screen#2 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte) 'a'
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(byte**~) main::$2 ← & (byte*) screen#2
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(byte**) setscreen::screen#1 ← (byte**~) main::$2
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(byte*) setscreen::val#1 ← (byte*) screen2#1
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call setscreen
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to:main::@2
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main::@2: scope:[main] from main::@1
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(byte*) screen#3 ← phi( main::@1/(byte*) screen#2 )
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*((byte*) screen#3 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte) 'a'
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to:main::@return
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main::@return: scope:[main] from main::@2
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return
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to:@return
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setscreen: scope:[setscreen] from main main::@1
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(byte**) setscreen::screen#2 ← phi( main/(byte**) setscreen::screen#0 main::@1/(byte**) setscreen::screen#1 )
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(byte*) setscreen::val#2 ← phi( main/(byte*) setscreen::val#0 main::@1/(byte*) setscreen::val#1 )
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*((byte**) setscreen::screen#2) ← (byte*) setscreen::val#2
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to:setscreen::@return
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setscreen::@return: scope:[setscreen] from setscreen
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return
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to:@return
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@2: scope:[] from @begin
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(byte*) screen2#3 ← phi( @begin/(byte*) screen2#0 )
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(byte*) screen#4 ← phi( @begin/(byte*) screen#0 )
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call main
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to:@3
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@3: scope:[] from @2
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to:@end
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@end: scope:[] from @3
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SYMBOL TABLE SSA
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(word/signed word/dword/signed dword~) $0
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(label) @2
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(label) @3
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(label) @begin
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(label) @end
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(void()) main()
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(byte**~) main::$0
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(byte**~) main::$2
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(label) main::@1
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(label) main::@2
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(label) main::@return
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(byte*) screen
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(byte*) screen#0
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(byte*) screen#1
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(byte*) screen#2
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(byte*) screen#3
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(byte*) screen#4
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(byte*) screen1
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(byte*) screen1#0
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(byte*) screen2
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(byte*) screen2#0
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(byte*) screen2#1
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(byte*) screen2#2
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(byte*) screen2#3
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(void()) setscreen((byte**) setscreen::screen , (byte*) setscreen::val)
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(label) setscreen::@return
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(byte**) setscreen::screen
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(byte**) setscreen::screen#0
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(byte**) setscreen::screen#1
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(byte**) setscreen::screen#2
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(byte*) setscreen::val
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(byte*) setscreen::val#0
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(byte*) setscreen::val#1
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(byte*) setscreen::val#2
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Culled Empty Block (label) @3
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Successful SSA optimization Pass2CullEmptyBlocks
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Alias (byte**) setscreen::screen#0 = (byte**~) main::$0
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Alias (byte*) screen#1 = (byte*) screen#2 (byte*) screen#3
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Alias (byte*) screen2#1 = (byte*) screen2#2
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Alias (byte**) setscreen::screen#1 = (byte**~) main::$2
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Alias (byte*) screen#0 = (byte*) screen#4
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Alias (byte*) screen2#0 = (byte*) screen2#3
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Successful SSA optimization Pass2AliasElimination
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Redundant Phi (byte*) screen#1 (byte*) screen#0
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Redundant Phi (byte*) screen2#1 (byte*) screen2#0
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Successful SSA optimization Pass2RedundantPhiElimination
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Constant right-side identified [0] (byte*) screen#0 ← ((byte*)) (word/signed word/dword/signed dword) $400
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Constant (const byte*) screen1#0 = ((byte*))$400
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Constant (const word/signed word/dword/signed dword) $0 = $400+$28
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Constant (const byte**) setscreen::screen#0 = &screen#0
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Constant (const byte**) setscreen::screen#1 = &screen#0
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Successful SSA optimization Pass2ConstantIdentification
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Constant (const byte*) screen2#0 = ((byte*))$0
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Constant (const byte*) setscreen::val#0 = screen1#0
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Successful SSA optimization Pass2ConstantIdentification
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Constant (const byte*) setscreen::val#1 = screen2#0
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Successful SSA optimization Pass2ConstantIdentification
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Inlining constant with var siblings (const byte**) setscreen::screen#0
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Inlining constant with var siblings (const byte**) setscreen::screen#1
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Inlining constant with var siblings (const byte*) setscreen::val#0
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Inlining constant with var siblings (const byte*) setscreen::val#1
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Constant inlined setscreen::screen#0 = &(byte*) screen#0
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Constant inlined $0 = (word/signed word/dword/signed dword) $400+(byte/signed byte/word/signed word/dword/signed dword) $28
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Constant inlined setscreen::val#1 = (const byte*) screen2#0
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Constant inlined setscreen::screen#1 = &(byte*) screen#0
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Constant inlined setscreen::val#0 = (const byte*) screen1#0
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Successful SSA optimization Pass2ConstantInlining
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Adding NOP phi() at start of @2
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Adding NOP phi() at start of @end
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Adding NOP phi() at start of main
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CALL GRAPH
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Calls in [] to main:2
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Calls in [main] to setscreen:5 setscreen:7
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Created 2 initial phi equivalence classes
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Coalesced down to 2 phi equivalence classes
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Renumbering block @2 to @1
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Adding NOP phi() at start of @1
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Adding NOP phi() at start of @end
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Adding NOP phi() at start of main
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FINAL CONTROL FLOW GRAPH
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@begin: scope:[] from
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[0] (byte*) screen#0 ← ((byte*))(word/signed word/dword/signed dword) $400
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to:@1
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@1: scope:[] from @begin
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[1] phi()
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[2] call main
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to:@end
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@end: scope:[] from @1
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[3] phi()
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main: scope:[main] from @1
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[4] phi()
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[5] call setscreen
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to:main::@1
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main::@1: scope:[main] from main
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[6] *((byte*) screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte) 'a'
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[7] call setscreen
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to:main::@2
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main::@2: scope:[main] from main::@1
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[8] *((byte*) screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte) 'a'
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to:main::@return
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main::@return: scope:[main] from main::@2
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[9] return
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to:@return
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setscreen: scope:[setscreen] from main main::@1
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[10] (byte**) setscreen::screen#2 ← phi( main/&(byte*) screen#0 main::@1/&(byte*) screen#0 )
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[10] (byte*) setscreen::val#2 ← phi( main/(const byte*) screen1#0 main::@1/(const byte*) screen2#0 )
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[11] *((byte**) setscreen::screen#2) ← (byte*) setscreen::val#2
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to:setscreen::@return
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setscreen::@return: scope:[setscreen] from setscreen
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[12] return
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to:@return
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VARIABLE REGISTER WEIGHTS
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(void()) main()
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(byte*) screen
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(byte*) screen#0 0.6666666666666666
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(byte*) screen1
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(byte*) screen2
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(void()) setscreen((byte**) setscreen::screen , (byte*) setscreen::val)
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(byte**) setscreen::screen
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(byte**) setscreen::screen#2 2.0
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(byte*) setscreen::val
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(byte*) setscreen::val#2 2.0
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Initial phi equivalence classes
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[ setscreen::val#2 ]
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[ setscreen::screen#2 ]
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Added variable screen#0 to zero page equivalence class [ screen#0 ]
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Complete equivalence classes
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[ setscreen::val#2 ]
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[ setscreen::screen#2 ]
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[ screen#0 ]
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Allocated zp ZP_WORD:2 [ setscreen::val#2 ]
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Allocated zp ZP_WORD:4 [ setscreen::screen#2 ]
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Allocated zp ZP_WORD:6 [ screen#0 ]
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INITIAL ASM
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//SEG0 File Comments
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// Tests pointer to pointer in a more complex setup
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//SEG1 Basic Upstart
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.pc = $801 "Basic"
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:BasicUpstart(bbegin)
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.pc = $80d "Program"
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//SEG2 Global Constants & labels
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.label screen1 = $400
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.label screen2 = $400+$28
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.label screen = 6
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//SEG3 @begin
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bbegin:
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//SEG4 [0] (byte*) screen#0 ← ((byte*))(word/signed word/dword/signed dword) $400 -- pbuz1=pbuc1
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lda #<$400
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sta screen
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lda #>$400
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sta screen+1
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//SEG5 [1] phi from @begin to @1 [phi:@begin->@1]
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b1_from_bbegin:
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jmp b1
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//SEG6 @1
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b1:
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//SEG7 [2] call main
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//SEG8 [4] phi from @1 to main [phi:@1->main]
|
||||||
|
main_from_b1:
|
||||||
|
jsr main
|
||||||
|
//SEG9 [3] phi from @1 to @end [phi:@1->@end]
|
||||||
|
bend_from_b1:
|
||||||
|
jmp bend
|
||||||
|
//SEG10 @end
|
||||||
|
bend:
|
||||||
|
//SEG11 main
|
||||||
|
main: {
|
||||||
|
//SEG12 [5] call setscreen
|
||||||
|
//SEG13 [10] phi from main to setscreen [phi:main->setscreen]
|
||||||
|
setscreen_from_main:
|
||||||
|
//SEG14 [10] phi (byte**) setscreen::screen#2 = &(byte*) screen#0 [phi:main->setscreen#0] -- pptz1=pptc1
|
||||||
|
lda #<screen
|
||||||
|
sta setscreen.screen
|
||||||
|
lda #>screen
|
||||||
|
sta setscreen.screen+1
|
||||||
|
//SEG15 [10] phi (byte*) setscreen::val#2 = (const byte*) screen1#0 [phi:main->setscreen#1] -- pbuz1=pbuc1
|
||||||
|
lda #<screen1
|
||||||
|
sta setscreen.val
|
||||||
|
lda #>screen1
|
||||||
|
sta setscreen.val+1
|
||||||
|
jsr setscreen
|
||||||
|
jmp b1
|
||||||
|
//SEG16 main::@1
|
||||||
|
b1:
|
||||||
|
//SEG17 [6] *((byte*) screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte) 'a' -- pbuz1_derefidx_vbuc1=vbuc2
|
||||||
|
lda #'a'
|
||||||
|
ldy #0
|
||||||
|
sta (screen),y
|
||||||
|
//SEG18 [7] call setscreen
|
||||||
|
//SEG19 [10] phi from main::@1 to setscreen [phi:main::@1->setscreen]
|
||||||
|
setscreen_from_b1:
|
||||||
|
//SEG20 [10] phi (byte**) setscreen::screen#2 = &(byte*) screen#0 [phi:main::@1->setscreen#0] -- pptz1=pptc1
|
||||||
|
lda #<screen
|
||||||
|
sta setscreen.screen
|
||||||
|
lda #>screen
|
||||||
|
sta setscreen.screen+1
|
||||||
|
//SEG21 [10] phi (byte*) setscreen::val#2 = (const byte*) screen2#0 [phi:main::@1->setscreen#1] -- pbuz1=pbuc1
|
||||||
|
lda #<screen2
|
||||||
|
sta setscreen.val
|
||||||
|
lda #>screen2
|
||||||
|
sta setscreen.val+1
|
||||||
|
jsr setscreen
|
||||||
|
jmp b2
|
||||||
|
//SEG22 main::@2
|
||||||
|
b2:
|
||||||
|
//SEG23 [8] *((byte*) screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte) 'a' -- pbuz1_derefidx_vbuc1=vbuc2
|
||||||
|
lda #'a'
|
||||||
|
ldy #0
|
||||||
|
sta (screen),y
|
||||||
|
jmp breturn
|
||||||
|
//SEG24 main::@return
|
||||||
|
breturn:
|
||||||
|
//SEG25 [9] return
|
||||||
|
rts
|
||||||
|
}
|
||||||
|
//SEG26 setscreen
|
||||||
|
// setscreen(byte** zeropage(4) screen, byte* zeropage(2) val)
|
||||||
|
setscreen: {
|
||||||
|
.label val = 2
|
||||||
|
.label screen = 4
|
||||||
|
//SEG27 [11] *((byte**) setscreen::screen#2) ← (byte*) setscreen::val#2 -- _deref_pptz1=pbuz2
|
||||||
|
ldy #0
|
||||||
|
lda val
|
||||||
|
sta (screen),y
|
||||||
|
iny
|
||||||
|
lda val+1
|
||||||
|
sta (screen),y
|
||||||
|
jmp breturn
|
||||||
|
//SEG28 setscreen::@return
|
||||||
|
breturn:
|
||||||
|
//SEG29 [12] return
|
||||||
|
rts
|
||||||
|
}
|
||||||
|
|
||||||
|
REGISTER UPLIFT POTENTIAL REGISTERS
|
||||||
|
Statement [0] (byte*) screen#0 ← ((byte*))(word/signed word/dword/signed dword) $400 [ screen#0 ] ( ) always clobbers reg byte a
|
||||||
|
Statement [6] *((byte*) screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte) 'a' [ screen#0 ] ( main:2 [ screen#0 ] ) always clobbers reg byte a reg byte y
|
||||||
|
Statement [8] *((byte*) screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte) 'a' [ ] ( main:2 [ ] ) always clobbers reg byte a reg byte y
|
||||||
|
Statement [11] *((byte**) setscreen::screen#2) ← (byte*) setscreen::val#2 [ screen#0 ] ( main:2::setscreen:5 [ screen#0 ] main:2::setscreen:7 [ screen#0 ] ) always clobbers reg byte a reg byte y
|
||||||
|
Potential registers zp ZP_WORD:2 [ setscreen::val#2 ] : zp ZP_WORD:2 ,
|
||||||
|
Potential registers zp ZP_WORD:4 [ setscreen::screen#2 ] : zp ZP_WORD:4 ,
|
||||||
|
Potential registers zp ZP_WORD:6 [ screen#0 ] : zp ZP_WORD:6 ,
|
||||||
|
|
||||||
|
REGISTER UPLIFT SCOPES
|
||||||
|
Uplift Scope [setscreen] 2: zp ZP_WORD:2 [ setscreen::val#2 ] 2: zp ZP_WORD:4 [ setscreen::screen#2 ]
|
||||||
|
Uplift Scope [] 0.67: zp ZP_WORD:6 [ screen#0 ]
|
||||||
|
Uplift Scope [main]
|
||||||
|
|
||||||
|
Uplifting [setscreen] best 140 combination zp ZP_WORD:2 [ setscreen::val#2 ] zp ZP_WORD:4 [ setscreen::screen#2 ]
|
||||||
|
Uplifting [] best 140 combination zp ZP_WORD:6 [ screen#0 ]
|
||||||
|
Uplifting [main] best 140 combination
|
||||||
|
|
||||||
|
ASSEMBLER BEFORE OPTIMIZATION
|
||||||
|
//SEG0 File Comments
|
||||||
|
// Tests pointer to pointer in a more complex setup
|
||||||
|
//SEG1 Basic Upstart
|
||||||
|
.pc = $801 "Basic"
|
||||||
|
:BasicUpstart(bbegin)
|
||||||
|
.pc = $80d "Program"
|
||||||
|
//SEG2 Global Constants & labels
|
||||||
|
.label screen1 = $400
|
||||||
|
.label screen2 = $400+$28
|
||||||
|
.label screen = 6
|
||||||
|
//SEG3 @begin
|
||||||
|
bbegin:
|
||||||
|
//SEG4 [0] (byte*) screen#0 ← ((byte*))(word/signed word/dword/signed dword) $400 -- pbuz1=pbuc1
|
||||||
|
lda #<$400
|
||||||
|
sta screen
|
||||||
|
lda #>$400
|
||||||
|
sta screen+1
|
||||||
|
//SEG5 [1] phi from @begin to @1 [phi:@begin->@1]
|
||||||
|
b1_from_bbegin:
|
||||||
|
jmp b1
|
||||||
|
//SEG6 @1
|
||||||
|
b1:
|
||||||
|
//SEG7 [2] call main
|
||||||
|
//SEG8 [4] phi from @1 to main [phi:@1->main]
|
||||||
|
main_from_b1:
|
||||||
|
jsr main
|
||||||
|
//SEG9 [3] phi from @1 to @end [phi:@1->@end]
|
||||||
|
bend_from_b1:
|
||||||
|
jmp bend
|
||||||
|
//SEG10 @end
|
||||||
|
bend:
|
||||||
|
//SEG11 main
|
||||||
|
main: {
|
||||||
|
//SEG12 [5] call setscreen
|
||||||
|
//SEG13 [10] phi from main to setscreen [phi:main->setscreen]
|
||||||
|
setscreen_from_main:
|
||||||
|
//SEG14 [10] phi (byte**) setscreen::screen#2 = &(byte*) screen#0 [phi:main->setscreen#0] -- pptz1=pptc1
|
||||||
|
lda #<screen
|
||||||
|
sta setscreen.screen
|
||||||
|
lda #>screen
|
||||||
|
sta setscreen.screen+1
|
||||||
|
//SEG15 [10] phi (byte*) setscreen::val#2 = (const byte*) screen1#0 [phi:main->setscreen#1] -- pbuz1=pbuc1
|
||||||
|
lda #<screen1
|
||||||
|
sta setscreen.val
|
||||||
|
lda #>screen1
|
||||||
|
sta setscreen.val+1
|
||||||
|
jsr setscreen
|
||||||
|
jmp b1
|
||||||
|
//SEG16 main::@1
|
||||||
|
b1:
|
||||||
|
//SEG17 [6] *((byte*) screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte) 'a' -- pbuz1_derefidx_vbuc1=vbuc2
|
||||||
|
lda #'a'
|
||||||
|
ldy #0
|
||||||
|
sta (screen),y
|
||||||
|
//SEG18 [7] call setscreen
|
||||||
|
//SEG19 [10] phi from main::@1 to setscreen [phi:main::@1->setscreen]
|
||||||
|
setscreen_from_b1:
|
||||||
|
//SEG20 [10] phi (byte**) setscreen::screen#2 = &(byte*) screen#0 [phi:main::@1->setscreen#0] -- pptz1=pptc1
|
||||||
|
lda #<screen
|
||||||
|
sta setscreen.screen
|
||||||
|
lda #>screen
|
||||||
|
sta setscreen.screen+1
|
||||||
|
//SEG21 [10] phi (byte*) setscreen::val#2 = (const byte*) screen2#0 [phi:main::@1->setscreen#1] -- pbuz1=pbuc1
|
||||||
|
lda #<screen2
|
||||||
|
sta setscreen.val
|
||||||
|
lda #>screen2
|
||||||
|
sta setscreen.val+1
|
||||||
|
jsr setscreen
|
||||||
|
jmp b2
|
||||||
|
//SEG22 main::@2
|
||||||
|
b2:
|
||||||
|
//SEG23 [8] *((byte*) screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte) 'a' -- pbuz1_derefidx_vbuc1=vbuc2
|
||||||
|
lda #'a'
|
||||||
|
ldy #0
|
||||||
|
sta (screen),y
|
||||||
|
jmp breturn
|
||||||
|
//SEG24 main::@return
|
||||||
|
breturn:
|
||||||
|
//SEG25 [9] return
|
||||||
|
rts
|
||||||
|
}
|
||||||
|
//SEG26 setscreen
|
||||||
|
// setscreen(byte** zeropage(4) screen, byte* zeropage(2) val)
|
||||||
|
setscreen: {
|
||||||
|
.label val = 2
|
||||||
|
.label screen = 4
|
||||||
|
//SEG27 [11] *((byte**) setscreen::screen#2) ← (byte*) setscreen::val#2 -- _deref_pptz1=pbuz2
|
||||||
|
ldy #0
|
||||||
|
lda val
|
||||||
|
sta (screen),y
|
||||||
|
iny
|
||||||
|
lda val+1
|
||||||
|
sta (screen),y
|
||||||
|
jmp breturn
|
||||||
|
//SEG28 setscreen::@return
|
||||||
|
breturn:
|
||||||
|
//SEG29 [12] return
|
||||||
|
rts
|
||||||
|
}
|
||||||
|
|
||||||
|
ASSEMBLER OPTIMIZATIONS
|
||||||
|
Removing instruction jmp b1
|
||||||
|
Removing instruction jmp bend
|
||||||
|
Removing instruction jmp b1
|
||||||
|
Removing instruction jmp b2
|
||||||
|
Removing instruction jmp breturn
|
||||||
|
Removing instruction jmp breturn
|
||||||
|
Succesful ASM optimization Pass5NextJumpElimination
|
||||||
|
Removing instruction b1_from_bbegin:
|
||||||
|
Removing instruction main_from_b1:
|
||||||
|
Removing instruction bend_from_b1:
|
||||||
|
Succesful ASM optimization Pass5RedundantLabelElimination
|
||||||
|
Removing instruction b1:
|
||||||
|
Removing instruction bend:
|
||||||
|
Removing instruction setscreen_from_main:
|
||||||
|
Removing instruction b1:
|
||||||
|
Removing instruction setscreen_from_b1:
|
||||||
|
Removing instruction b2:
|
||||||
|
Removing instruction breturn:
|
||||||
|
Removing instruction breturn:
|
||||||
|
Succesful ASM optimization Pass5UnusedLabelElimination
|
||||||
|
Adding RTS to root block
|
||||||
|
Succesful ASM optimization Pass5AddMainRts
|
||||||
|
|
||||||
|
FINAL SYMBOL TABLE
|
||||||
|
(label) @1
|
||||||
|
(label) @begin
|
||||||
|
(label) @end
|
||||||
|
(void()) main()
|
||||||
|
(label) main::@1
|
||||||
|
(label) main::@2
|
||||||
|
(label) main::@return
|
||||||
|
(byte*) screen
|
||||||
|
(byte*) screen#0 screen zp ZP_WORD:6 0.6666666666666666
|
||||||
|
(byte*) screen1
|
||||||
|
(const byte*) screen1#0 screen1 = ((byte*))(word/signed word/dword/signed dword) $400
|
||||||
|
(byte*) screen2
|
||||||
|
(const byte*) screen2#0 screen2 = ((byte*))(word/signed word/dword/signed dword) $400+(byte/signed byte/word/signed word/dword/signed dword) $28
|
||||||
|
(void()) setscreen((byte**) setscreen::screen , (byte*) setscreen::val)
|
||||||
|
(label) setscreen::@return
|
||||||
|
(byte**) setscreen::screen
|
||||||
|
(byte**) setscreen::screen#2 screen zp ZP_WORD:4 2.0
|
||||||
|
(byte*) setscreen::val
|
||||||
|
(byte*) setscreen::val#2 val zp ZP_WORD:2 2.0
|
||||||
|
|
||||||
|
zp ZP_WORD:2 [ setscreen::val#2 ]
|
||||||
|
zp ZP_WORD:4 [ setscreen::screen#2 ]
|
||||||
|
zp ZP_WORD:6 [ screen#0 ]
|
||||||
|
|
||||||
|
|
||||||
|
FINAL ASSEMBLER
|
||||||
|
Score: 128
|
||||||
|
|
||||||
|
//SEG0 File Comments
|
||||||
|
// Tests pointer to pointer in a more complex setup
|
||||||
|
//SEG1 Basic Upstart
|
||||||
|
.pc = $801 "Basic"
|
||||||
|
:BasicUpstart(bbegin)
|
||||||
|
.pc = $80d "Program"
|
||||||
|
//SEG2 Global Constants & labels
|
||||||
|
.label screen1 = $400
|
||||||
|
.label screen2 = $400+$28
|
||||||
|
.label screen = 6
|
||||||
|
//SEG3 @begin
|
||||||
|
bbegin:
|
||||||
|
//SEG4 [0] (byte*) screen#0 ← ((byte*))(word/signed word/dword/signed dword) $400 -- pbuz1=pbuc1
|
||||||
|
lda #<$400
|
||||||
|
sta screen
|
||||||
|
lda #>$400
|
||||||
|
sta screen+1
|
||||||
|
//SEG5 [1] phi from @begin to @1 [phi:@begin->@1]
|
||||||
|
//SEG6 @1
|
||||||
|
//SEG7 [2] call main
|
||||||
|
//SEG8 [4] phi from @1 to main [phi:@1->main]
|
||||||
|
jsr main
|
||||||
|
rts
|
||||||
|
//SEG9 [3] phi from @1 to @end [phi:@1->@end]
|
||||||
|
//SEG10 @end
|
||||||
|
//SEG11 main
|
||||||
|
main: {
|
||||||
|
//SEG12 [5] call setscreen
|
||||||
|
//SEG13 [10] phi from main to setscreen [phi:main->setscreen]
|
||||||
|
//SEG14 [10] phi (byte**) setscreen::screen#2 = &(byte*) screen#0 [phi:main->setscreen#0] -- pptz1=pptc1
|
||||||
|
lda #<screen
|
||||||
|
sta setscreen.screen
|
||||||
|
lda #>screen
|
||||||
|
sta setscreen.screen+1
|
||||||
|
//SEG15 [10] phi (byte*) setscreen::val#2 = (const byte*) screen1#0 [phi:main->setscreen#1] -- pbuz1=pbuc1
|
||||||
|
lda #<screen1
|
||||||
|
sta setscreen.val
|
||||||
|
lda #>screen1
|
||||||
|
sta setscreen.val+1
|
||||||
|
jsr setscreen
|
||||||
|
//SEG16 main::@1
|
||||||
|
//SEG17 [6] *((byte*) screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte) 'a' -- pbuz1_derefidx_vbuc1=vbuc2
|
||||||
|
lda #'a'
|
||||||
|
ldy #0
|
||||||
|
sta (screen),y
|
||||||
|
//SEG18 [7] call setscreen
|
||||||
|
//SEG19 [10] phi from main::@1 to setscreen [phi:main::@1->setscreen]
|
||||||
|
//SEG20 [10] phi (byte**) setscreen::screen#2 = &(byte*) screen#0 [phi:main::@1->setscreen#0] -- pptz1=pptc1
|
||||||
|
lda #<screen
|
||||||
|
sta setscreen.screen
|
||||||
|
lda #>screen
|
||||||
|
sta setscreen.screen+1
|
||||||
|
//SEG21 [10] phi (byte*) setscreen::val#2 = (const byte*) screen2#0 [phi:main::@1->setscreen#1] -- pbuz1=pbuc1
|
||||||
|
lda #<screen2
|
||||||
|
sta setscreen.val
|
||||||
|
lda #>screen2
|
||||||
|
sta setscreen.val+1
|
||||||
|
jsr setscreen
|
||||||
|
//SEG22 main::@2
|
||||||
|
//SEG23 [8] *((byte*) screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte) 'a' -- pbuz1_derefidx_vbuc1=vbuc2
|
||||||
|
lda #'a'
|
||||||
|
ldy #0
|
||||||
|
sta (screen),y
|
||||||
|
//SEG24 main::@return
|
||||||
|
//SEG25 [9] return
|
||||||
|
rts
|
||||||
|
}
|
||||||
|
//SEG26 setscreen
|
||||||
|
// setscreen(byte** zeropage(4) screen, byte* zeropage(2) val)
|
||||||
|
setscreen: {
|
||||||
|
.label val = 2
|
||||||
|
.label screen = 4
|
||||||
|
//SEG27 [11] *((byte**) setscreen::screen#2) ← (byte*) setscreen::val#2 -- _deref_pptz1=pbuz2
|
||||||
|
ldy #0
|
||||||
|
lda val
|
||||||
|
sta (screen),y
|
||||||
|
iny
|
||||||
|
lda val+1
|
||||||
|
sta (screen),y
|
||||||
|
//SEG28 setscreen::@return
|
||||||
|
//SEG29 [12] return
|
||||||
|
rts
|
||||||
|
}
|
||||||
|
|
||||||
23
src/test/ref/pointer-pointer-3.sym
Normal file
23
src/test/ref/pointer-pointer-3.sym
Normal file
@ -0,0 +1,23 @@
|
|||||||
|
(label) @1
|
||||||
|
(label) @begin
|
||||||
|
(label) @end
|
||||||
|
(void()) main()
|
||||||
|
(label) main::@1
|
||||||
|
(label) main::@2
|
||||||
|
(label) main::@return
|
||||||
|
(byte*) screen
|
||||||
|
(byte*) screen#0 screen zp ZP_WORD:6 0.6666666666666666
|
||||||
|
(byte*) screen1
|
||||||
|
(const byte*) screen1#0 screen1 = ((byte*))(word/signed word/dword/signed dword) $400
|
||||||
|
(byte*) screen2
|
||||||
|
(const byte*) screen2#0 screen2 = ((byte*))(word/signed word/dword/signed dword) $400+(byte/signed byte/word/signed word/dword/signed dword) $28
|
||||||
|
(void()) setscreen((byte**) setscreen::screen , (byte*) setscreen::val)
|
||||||
|
(label) setscreen::@return
|
||||||
|
(byte**) setscreen::screen
|
||||||
|
(byte**) setscreen::screen#2 screen zp ZP_WORD:4 2.0
|
||||||
|
(byte*) setscreen::val
|
||||||
|
(byte*) setscreen::val#2 val zp ZP_WORD:2 2.0
|
||||||
|
|
||||||
|
zp ZP_WORD:2 [ setscreen::val#2 ]
|
||||||
|
zp ZP_WORD:4 [ setscreen::screen#2 ]
|
||||||
|
zp ZP_WORD:6 [ screen#0 ]
|
||||||
Loading…
Reference in New Issue
Block a user