mirror of
https://gitlab.com/camelot/kickc.git
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440 lines
12 KiB
Plaintext
440 lines
12 KiB
Plaintext
Setting inferred volatile on symbol affected by address-of (byte*) main::addrA ← &(byte) A
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Identified constant variable (byte*) SCREEN
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Identified constant variable (byte) main::B
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Identified constant variable (byte*) main::addrA
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Identified constant variable (byte) sub::C
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Culled Empty Block (label) @1
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CONTROL FLOW GRAPH SSA
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@begin: scope:[] from
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(byte) A#0 ← (byte) 'a'
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to:@2
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(void()) main()
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main: scope:[main] from @2
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(byte) A#1 ← phi( @2/(byte) A#3 )
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*((const byte*) SCREEN + (number) 0) ← (byte) A#1
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*((const byte*) SCREEN + (number) 1) ← (const byte) main::B
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*((const byte*) SCREEN + (number) 2) ← *((const byte*) main::addrA)
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call sub
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to:main::@1
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main::@1: scope:[main] from main
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to:main::@return
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main::@return: scope:[main] from main::@1
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return
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to:@return
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(void()) sub()
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sub: scope:[sub] from main
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(byte) A#2 ← phi( main/(byte) A#1 )
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*((const byte*) SCREEN + (number) 3) ← (const byte) sub::C
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(number~) sub::$0 ← (byte) A#2 + (number) 1
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(byte) sub::D#0 ← (number~) sub::$0
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*((const byte*) SCREEN + (number) 4) ← (byte) sub::D#0
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to:sub::@return
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sub::@return: scope:[sub] from sub
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return
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to:@return
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@2: scope:[] from @begin
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(byte) A#3 ← phi( @begin/(byte) A#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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(label) @2
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(label) @3
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(label) @begin
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(label) @end
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(byte) A
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(byte) A#0
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(byte) A#1
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(byte) A#2
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(byte) A#3
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(const byte*) SCREEN = (byte*)(number) $400
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(void()) main()
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(label) main::@1
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(label) main::@return
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(const byte) main::B = (byte) 'b'
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(const byte*) main::addrA = &(byte) A
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(void()) sub()
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(number~) sub::$0
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(label) sub::@return
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(const byte) sub::C = (byte) 'c'
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(byte) sub::D
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(byte) sub::D#0
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Adding number conversion cast (unumber) 0 in *((const byte*) SCREEN + (number) 0) ← (byte) A#1
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Adding number conversion cast (unumber) 1 in *((const byte*) SCREEN + (number) 1) ← (const byte) main::B
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Adding number conversion cast (unumber) 2 in *((const byte*) SCREEN + (number) 2) ← *((const byte*) main::addrA)
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Adding number conversion cast (unumber) 3 in *((const byte*) SCREEN + (number) 3) ← (const byte) sub::C
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Adding number conversion cast (unumber) 1 in (number~) sub::$0 ← (byte) A#2 + (number) 1
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Adding number conversion cast (unumber) sub::$0 in (number~) sub::$0 ← (byte) A#2 + (unumber)(number) 1
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Adding number conversion cast (unumber) 4 in *((const byte*) SCREEN + (number) 4) ← (byte) sub::D#0
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Successful SSA optimization PassNAddNumberTypeConversions
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Simplifying constant pointer cast (byte*) 1024
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Simplifying constant integer cast 0
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Simplifying constant integer cast 1
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Simplifying constant integer cast 2
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Simplifying constant integer cast 3
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Simplifying constant integer cast 1
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Simplifying constant integer cast 4
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Successful SSA optimization PassNCastSimplification
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Finalized unsigned number type (byte) 0
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Finalized unsigned number type (byte) 1
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Finalized unsigned number type (byte) 2
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Finalized unsigned number type (byte) 3
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Finalized unsigned number type (byte) 1
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Finalized unsigned number type (byte) 4
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Inferred type updated to byte in (unumber~) sub::$0 ← (byte) A#2 + (byte) 1
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Alias (byte) sub::D#0 = (byte~) sub::$0
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Alias (byte) A#0 = (byte) A#3
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Successful SSA optimization Pass2AliasElimination
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Identical Phi Values (byte) A#1 (byte) A#0
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Identical Phi Values (byte) A#2 (byte) A#1
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Successful SSA optimization Pass2IdenticalPhiElimination
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Simplifying expression containing zero SCREEN in [2] *((const byte*) SCREEN + (byte) 0) ← (byte) A#0
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Successful SSA optimization PassNSimplifyExpressionWithZero
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Consolidated array index constant in *(SCREEN+1)
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Consolidated array index constant in *(SCREEN+2)
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Consolidated array index constant in *(SCREEN+3)
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Consolidated array index constant in *(SCREEN+4)
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Successful SSA optimization Pass2ConstantAdditionElimination
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Adding NOP phi() at start of @2
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Adding NOP phi() at start of @3
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Adding NOP phi() at start of @end
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Adding NOP phi() at start of main::@1
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CALL GRAPH
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Calls in [] to main:2
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Calls in [main] to sub:8
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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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Culled Empty Block (label) @3
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Culled Empty Block (label) main::@1
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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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FINAL CONTROL FLOW GRAPH
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@begin: scope:[] from
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[0] (byte) A#0 ← (byte) 'a'
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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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(void()) main()
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main: scope:[main] from @1
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[4] *((const byte*) SCREEN) ← (byte) A#0
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[5] *((const byte*) SCREEN+(byte) 1) ← (const byte) main::B
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[6] *((const byte*) SCREEN+(byte) 2) ← *((const byte*) main::addrA)
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[7] call sub
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to:main::@return
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main::@return: scope:[main] from main
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[8] return
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to:@return
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(void()) sub()
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sub: scope:[sub] from main
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[9] *((const byte*) SCREEN+(byte) 3) ← (const byte) sub::C
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[10] (byte) sub::D#0 ← (byte) A#0 + (byte) 1
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[11] *((const byte*) SCREEN+(byte) 4) ← (byte) sub::D#0
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to:sub::@return
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sub::@return: scope:[sub] from sub
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[12] return
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to:@return
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VARIABLE REGISTER WEIGHTS
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(byte) A
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(byte) A#0 1.0
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(void()) main()
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(void()) sub()
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(byte) sub::D
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(byte) sub::D#0 4.0
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Initial phi equivalence classes
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Added variable sub::D#0 to zero page equivalence class [ sub::D#0 ]
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Complete equivalence classes
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[ A#0 ]
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[ sub::D#0 ]
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Allocated zp[1]:2 [ A#0 ]
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Allocated zp[1]:3 [ sub::D#0 ]
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INITIAL ASM
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Target platform is c64basic / MOS6502X
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// File Comments
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// Tests that constants are identified early
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// 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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// Global Constants & labels
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.label SCREEN = $400
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.label A = 2
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// @begin
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__bbegin:
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// [0] (byte) A#0 ← (byte) 'a' -- vbuz1=vbuc1
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// Not an early constant (address-of is used)
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lda #'a'
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sta.z A
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// [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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// @1
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__b1:
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// [2] call main
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jsr main
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// [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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// @end
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__bend:
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// main
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main: {
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.const B = 'b'
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.label addrA = A
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// [4] *((const byte*) SCREEN) ← (byte) A#0 -- _deref_pbuc1=vbuz1
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lda.z A
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sta SCREEN
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// [5] *((const byte*) SCREEN+(byte) 1) ← (const byte) main::B -- _deref_pbuc1=vbuc2
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lda #B
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sta SCREEN+1
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// [6] *((const byte*) SCREEN+(byte) 2) ← *((const byte*) main::addrA) -- _deref_pbuc1=_deref_pbuc2
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lda.z addrA
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sta SCREEN+2
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// [7] call sub
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jsr sub
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jmp __breturn
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// main::@return
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__breturn:
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// [8] return
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rts
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}
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// sub
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sub: {
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.const C = 'c'
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.label D = 3
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// [9] *((const byte*) SCREEN+(byte) 3) ← (const byte) sub::C -- _deref_pbuc1=vbuc2
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lda #C
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sta SCREEN+3
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// [10] (byte) sub::D#0 ← (byte) A#0 + (byte) 1 -- vbuz1=vbuz2_plus_1
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ldy.z A
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iny
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sty.z D
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// [11] *((const byte*) SCREEN+(byte) 4) ← (byte) sub::D#0 -- _deref_pbuc1=vbuz1
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lda.z D
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sta SCREEN+4
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jmp __breturn
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// sub::@return
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__breturn:
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// [12] return
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rts
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}
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// File Data
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REGISTER UPLIFT POTENTIAL REGISTERS
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Statement [0] (byte) A#0 ← (byte) 'a' [ A#0 ] ( [ A#0 ] ) always clobbers reg byte a
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Statement [4] *((const byte*) SCREEN) ← (byte) A#0 [ A#0 ] ( main:2 [ A#0 ] ) always clobbers reg byte a
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Statement [5] *((const byte*) SCREEN+(byte) 1) ← (const byte) main::B [ A#0 ] ( main:2 [ A#0 ] ) always clobbers reg byte a
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Statement [6] *((const byte*) SCREEN+(byte) 2) ← *((const byte*) main::addrA) [ A#0 ] ( main:2 [ A#0 ] ) always clobbers reg byte a
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Statement [9] *((const byte*) SCREEN+(byte) 3) ← (const byte) sub::C [ A#0 ] ( main:2::sub:7 [ A#0 ] ) always clobbers reg byte a
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Potential registers zp[1]:2 [ A#0 ] : zp[1]:2 ,
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Potential registers zp[1]:3 [ sub::D#0 ] : zp[1]:3 , reg byte a , reg byte x , reg byte y ,
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REGISTER UPLIFT SCOPES
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Uplift Scope [sub] 4: zp[1]:3 [ sub::D#0 ]
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Uplift Scope [] 1: zp[1]:2 [ A#0 ]
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Uplift Scope [main]
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Uplifting [sub] best 76 combination reg byte x [ sub::D#0 ]
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Uplifting [] best 76 combination zp[1]:2 [ A#0 ]
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Uplifting [main] best 76 combination
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Attempting to uplift remaining variables inzp[1]:2 [ A#0 ]
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Uplifting [] best 76 combination zp[1]:2 [ A#0 ]
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ASSEMBLER BEFORE OPTIMIZATION
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// File Comments
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// Tests that constants are identified early
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// 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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// Global Constants & labels
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.label SCREEN = $400
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.label A = 2
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// @begin
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__bbegin:
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// [0] (byte) A#0 ← (byte) 'a' -- vbuz1=vbuc1
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// Not an early constant (address-of is used)
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lda #'a'
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sta.z A
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// [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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// @1
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__b1:
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// [2] call main
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jsr main
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// [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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// @end
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__bend:
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// main
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main: {
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.const B = 'b'
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.label addrA = A
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// [4] *((const byte*) SCREEN) ← (byte) A#0 -- _deref_pbuc1=vbuz1
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lda.z A
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sta SCREEN
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// [5] *((const byte*) SCREEN+(byte) 1) ← (const byte) main::B -- _deref_pbuc1=vbuc2
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lda #B
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sta SCREEN+1
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// [6] *((const byte*) SCREEN+(byte) 2) ← *((const byte*) main::addrA) -- _deref_pbuc1=_deref_pbuc2
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lda.z addrA
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sta SCREEN+2
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// [7] call sub
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jsr sub
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jmp __breturn
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// main::@return
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__breturn:
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// [8] return
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rts
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}
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// sub
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sub: {
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.const C = 'c'
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// [9] *((const byte*) SCREEN+(byte) 3) ← (const byte) sub::C -- _deref_pbuc1=vbuc2
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lda #C
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sta SCREEN+3
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// [10] (byte) sub::D#0 ← (byte) A#0 + (byte) 1 -- vbuxx=vbuz1_plus_1
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ldx.z A
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inx
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// [11] *((const byte*) SCREEN+(byte) 4) ← (byte) sub::D#0 -- _deref_pbuc1=vbuxx
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stx SCREEN+4
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jmp __breturn
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// sub::@return
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__breturn:
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// [12] return
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rts
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}
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// File Data
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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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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 __bend_from___b1:
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Succesful ASM optimization Pass5RedundantLabelElimination
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Removing instruction __b1:
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Removing instruction __bend:
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Removing instruction __breturn:
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Removing instruction __breturn:
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Succesful ASM optimization Pass5UnusedLabelElimination
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Adding RTS to root block
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Succesful ASM optimization Pass5AddMainRts
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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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(byte) A
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(byte) A#0 A zp[1]:2 1.0
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(const byte*) SCREEN = (byte*) 1024
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(void()) main()
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(label) main::@return
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(const byte) main::B = (byte) 'b'
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(const byte*) main::addrA = &(byte) A
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(void()) sub()
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(label) sub::@return
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(const byte) sub::C = (byte) 'c'
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(byte) sub::D
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(byte) sub::D#0 reg byte x 4.0
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zp[1]:2 [ A#0 ]
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reg byte x [ sub::D#0 ]
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FINAL ASSEMBLER
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Score: 70
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// File Comments
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// Tests that constants are identified early
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// 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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// Global Constants & labels
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.label SCREEN = $400
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.label A = 2
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// @begin
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__bbegin:
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// A = 'a'
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// [0] (byte) A#0 ← (byte) 'a' -- vbuz1=vbuc1
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// Not an early constant (address-of is used)
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lda #'a'
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sta.z A
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// [1] phi from @begin to @1 [phi:@begin->@1]
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// @1
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// [2] call main
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jsr main
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rts
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// [3] phi from @1 to @end [phi:@1->@end]
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// @end
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// main
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main: {
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.const B = 'b'
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.label addrA = A
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// SCREEN[0] = A
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// [4] *((const byte*) SCREEN) ← (byte) A#0 -- _deref_pbuc1=vbuz1
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lda.z A
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sta SCREEN
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// SCREEN[1] = B
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// [5] *((const byte*) SCREEN+(byte) 1) ← (const byte) main::B -- _deref_pbuc1=vbuc2
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lda #B
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sta SCREEN+1
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// SCREEN[2] = *addrA
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// [6] *((const byte*) SCREEN+(byte) 2) ← *((const byte*) main::addrA) -- _deref_pbuc1=_deref_pbuc2
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lda.z addrA
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sta SCREEN+2
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// sub()
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// [7] call sub
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jsr sub
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// main::@return
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// }
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// [8] return
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rts
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}
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// sub
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sub: {
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.const C = 'c'
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// SCREEN[3] = C
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// [9] *((const byte*) SCREEN+(byte) 3) ← (const byte) sub::C -- _deref_pbuc1=vbuc2
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lda #C
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sta SCREEN+3
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// D = A+1
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// [10] (byte) sub::D#0 ← (byte) A#0 + (byte) 1 -- vbuxx=vbuz1_plus_1
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ldx.z A
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inx
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// SCREEN[4] = D
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// [11] *((const byte*) SCREEN+(byte) 4) ← (byte) sub::D#0 -- _deref_pbuc1=vbuxx
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stx SCREEN+4
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// sub::@return
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// }
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// [12] return
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rts
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}
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// File Data
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