mirror of
https://gitlab.com/camelot/kickc.git
synced 2024-06-10 10:29:36 +00:00
228 lines
5.8 KiB
Plaintext
228 lines
5.8 KiB
Plaintext
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CONTROL FLOW GRAPH SSA
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@begin: scope:[] from
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to:@1
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main: scope:[main] from @1
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(byte*) main::SCREEN#0 ← ((byte*)) (word/signed word/dword/signed dword) $400
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(byte) main::c#0 ← (byte/signed byte/word/signed word/dword/signed dword) 0
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(byte/signed byte/word/signed word/dword/signed dword~) main::$0 ← (byte/signed byte/word/signed word/dword/signed dword) 1 + (byte/signed byte/word/signed word/dword/signed dword) 3
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(byte) main::c#1 ← (byte/signed byte/word/signed word/dword/signed dword~) main::$0
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*((byte*) main::SCREEN#0 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte) main::c#1
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to:main::@return
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main::@return: scope:[main] from main
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return
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to:@return
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@1: scope:[] from @begin
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call main
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to:@2
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@2: scope:[] from @1
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to:@end
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@end: scope:[] from @2
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SYMBOL TABLE SSA
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(label) @1
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(label) @2
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(label) @begin
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(label) @end
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(void()) main()
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(byte/signed byte/word/signed word/dword/signed dword~) main::$0
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(label) main::@return
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(byte*) main::SCREEN
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(byte*) main::SCREEN#0
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(byte) main::c
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(byte) main::c#0
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(byte) main::c#1
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Culled Empty Block (label) @2
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Successful SSA optimization Pass2CullEmptyBlocks
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Alias (byte) main::c#1 = (byte/signed byte/word/signed word/dword/signed dword~) main::$0
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Successful SSA optimization Pass2AliasElimination
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Constant (const byte*) main::SCREEN#0 = ((byte*))$400
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Constant (const byte) main::c#0 = 0
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Constant (const byte) main::c#1 = 1+3
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Successful SSA optimization Pass2ConstantIdentification
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Consolidated array index constant in *(main::SCREEN#0+0)
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Successful SSA optimization Pass2ConstantAdditionElimination
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Eliminating unused constant (const byte) main::c#0
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Successful SSA optimization PassNEliminateUnusedVars
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Simplifying constant plus zero main::SCREEN#0+0
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Adding NOP phi() at start of @begin
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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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CALL GRAPH
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Calls in [] to main:2
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Created 0 initial phi equivalence classes
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Coalesced down to 0 phi equivalence classes
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Adding NOP phi() at start of @begin
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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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FINAL CONTROL FLOW GRAPH
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@begin: scope:[] from
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[0] phi()
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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] *((const byte*) main::SCREEN#0) ← (const byte) main::c#1
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to:main::@return
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main::@return: scope:[main] from main
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[5] 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*) main::SCREEN
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(byte) main::c
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Initial phi equivalence classes
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Complete equivalence classes
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INITIAL ASM
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//SEG0 File Comments
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// Tests simple comma-expressions (without parenthesis)
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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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//SEG3 @begin
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bbegin:
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//SEG4 [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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//SEG5 @1
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b1:
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//SEG6 [2] call main
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jsr main
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//SEG7 [3] phi from @1 to @end [phi:@1->@end]
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bend_from_b1:
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jmp bend
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//SEG8 @end
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bend:
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//SEG9 main
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main: {
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.label SCREEN = $400
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.const c = 1+3
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//SEG10 [4] *((const byte*) main::SCREEN#0) ← (const byte) main::c#1 -- _deref_pbuc1=vbuc2
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lda #c
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sta SCREEN
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jmp breturn
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//SEG11 main::@return
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breturn:
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//SEG12 [5] return
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rts
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}
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REGISTER UPLIFT POTENTIAL REGISTERS
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Statement [4] *((const byte*) main::SCREEN#0) ← (const byte) main::c#1 [ ] ( main:2 [ ] ) always clobbers reg byte a
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REGISTER UPLIFT SCOPES
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Uplift Scope [main]
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Uplift Scope []
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Uplifting [main] best 27 combination
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Uplifting [] best 27 combination
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ASSEMBLER BEFORE OPTIMIZATION
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//SEG0 File Comments
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// Tests simple comma-expressions (without parenthesis)
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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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//SEG3 @begin
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bbegin:
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//SEG4 [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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//SEG5 @1
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b1:
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//SEG6 [2] call main
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jsr main
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//SEG7 [3] phi from @1 to @end [phi:@1->@end]
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bend_from_b1:
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jmp bend
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//SEG8 @end
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bend:
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//SEG9 main
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main: {
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.label SCREEN = $400
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.const c = 1+3
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//SEG10 [4] *((const byte*) main::SCREEN#0) ← (const byte) main::c#1 -- _deref_pbuc1=vbuc2
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lda #c
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sta SCREEN
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jmp breturn
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//SEG11 main::@return
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breturn:
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//SEG12 [5] return
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rts
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}
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ASSEMBLER OPTIMIZATIONS
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Removing instruction jmp b1
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Removing instruction jmp bend
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Removing instruction jmp breturn
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Succesful ASM optimization Pass5NextJumpElimination
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Removing instruction b1_from_bbegin:
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Removing instruction b1:
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Removing instruction bend_from_b1:
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Succesful ASM optimization Pass5RedundantLabelElimination
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Removing instruction bend:
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Removing instruction breturn:
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Succesful ASM optimization Pass5UnusedLabelElimination
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Updating BasicUpstart to call main directly
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Removing instruction jsr main
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Succesful ASM optimization Pass5SkipBegin
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Removing instruction bbegin:
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Succesful ASM optimization Pass5UnusedLabelElimination
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FINAL SYMBOL TABLE
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(label) @1
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(label) @begin
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(label) @end
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(void()) main()
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(label) main::@return
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(byte*) main::SCREEN
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(const byte*) main::SCREEN#0 SCREEN = ((byte*))(word/signed word/dword/signed dword) $400
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(byte) main::c
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(const byte) main::c#1 c = (byte/signed byte/word/signed word/dword/signed dword) 1+(byte/signed byte/word/signed word/dword/signed dword) 3
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FINAL ASSEMBLER
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Score: 12
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//SEG0 File Comments
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// Tests simple comma-expressions (without parenthesis)
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//SEG1 Basic Upstart
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.pc = $801 "Basic"
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:BasicUpstart(main)
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.pc = $80d "Program"
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//SEG2 Global Constants & labels
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//SEG3 @begin
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//SEG4 [1] phi from @begin to @1 [phi:@begin->@1]
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//SEG5 @1
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//SEG6 [2] call main
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//SEG7 [3] phi from @1 to @end [phi:@1->@end]
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//SEG8 @end
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//SEG9 main
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main: {
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.label SCREEN = $400
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.const c = 1+3
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//SEG10 [4] *((const byte*) main::SCREEN#0) ← (const byte) main::c#1 -- _deref_pbuc1=vbuc2
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lda #c
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sta SCREEN
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//SEG11 main::@return
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//SEG12 [5] return
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rts
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}
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