mirror of
https://gitlab.com/camelot/kickc.git
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319 lines
12 KiB
Plaintext
319 lines
12 KiB
Plaintext
Identified constant variable (byte*) main::screen
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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::a#0 ← (byte/signed byte/word/signed word/dword/signed dword) 0
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(byte) main::a#1 ← (byte) 'c'
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*((byte*) main::screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 0) ← (byte) main::a#1
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*((byte*) main::screen#0 + (byte/signed byte/word/signed word/dword/signed dword) $28) ← (byte) main::a#1
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*((byte*) main::screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 1) ← (byte) 'm'
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(byte) main::a#2 ← *((byte*) main::screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 1)
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*((byte*) main::screen#0 + (byte/signed byte/word/signed word/dword/signed dword) $29) ← (byte) main::a#2
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(byte) main::a#3 ← (byte) 'l'
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(byte/signed word/word/dword/signed dword~) main::$0 ← (byte/signed byte/word/signed word/dword/signed dword) 1 + (byte) main::a#3
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*((byte*) main::screen#0 + (byte/signed byte/word/signed word/dword/signed dword) 2) ← (byte/signed word/word/dword/signed dword~) main::$0
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*((byte*) main::screen#0 + (byte/signed byte/word/signed word/dword/signed dword) $2a) ← (byte) main::a#3
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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 word/word/dword/signed dword~) main::$0
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(label) main::@return
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(byte) main::a
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(byte) main::a#0
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(byte) main::a#1
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(byte) main::a#2
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(byte) main::a#3
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(byte*) main::screen
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(byte*) main::screen#0
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Culled Empty Block (label) @2
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Successful SSA optimization Pass2CullEmptyBlocks
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Constant (const byte*) main::screen#0 = ((byte*))$400
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Constant (const byte) main::a#0 = 0
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Constant (const byte) main::a#1 = 'c'
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Constant (const byte) main::a#3 = 'l'
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Successful SSA optimization Pass2ConstantIdentification
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Constant (const byte/signed word/word/dword/signed dword) main::$0 = 1+main::a#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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Consolidated array index constant in *(main::screen#0+$28)
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Consolidated array index constant in *(main::screen#0+1)
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Consolidated array index constant in *(main::screen#0+1)
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Consolidated array index constant in *(main::screen#0+$29)
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Consolidated array index constant in *(main::screen#0+2)
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Consolidated array index constant in *(main::screen#0+$2a)
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Successful SSA optimization Pass2ConstantAdditionElimination
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Eliminating unused constant (const byte) main::a#0
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Successful SSA optimization PassNEliminateUnusedVars
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Inlining constant with var siblings (const byte) main::a#1
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Inlining constant with var siblings (const byte) main::a#3
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Constant inlined main::a#3 = (byte) 'l'
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Constant inlined main::$0 = (byte/signed byte/word/signed word/dword/signed dword) 1+(byte) 'l'
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Constant inlined main::a#1 = (byte) 'c'
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Successful SSA optimization Pass2ConstantInlining
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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) ← (byte) 'c'
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[5] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) $28) ← (byte) 'c'
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[6] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 1) ← (byte) 'm'
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[7] (byte) main::a#2 ← *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 1)
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[8] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) $29) ← (byte) main::a#2
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[9] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 2) ← (byte/signed byte/word/signed word/dword/signed dword) 1+(byte) 'l'
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[10] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) $2a) ← (byte) 'l'
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to:main::@return
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main::@return: scope:[main] from main
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[11] 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::a
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(byte) main::a#2 4.0
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(byte*) main::screen
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Initial phi equivalence classes
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Added variable main::a#2 to zero page equivalence class [ main::a#2 ]
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Complete equivalence classes
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[ main::a#2 ]
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Allocated zp ZP_BYTE:2 [ main::a#2 ]
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INITIAL ASM
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//SEG0 File Comments
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// Tests that chained assignments work as intended
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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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.label a = 2
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//SEG10 [4] *((const byte*) main::screen#0) ← (byte) 'c' -- _deref_pbuc1=vbuc2
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lda #'c'
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sta screen
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//SEG11 [5] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) $28) ← (byte) 'c' -- _deref_pbuc1=vbuc2
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lda #'c'
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sta screen+$28
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//SEG12 [6] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 1) ← (byte) 'm' -- _deref_pbuc1=vbuc2
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lda #'m'
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sta screen+1
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//SEG13 [7] (byte) main::a#2 ← *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 1) -- vbuz1=_deref_pbuc1
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lda screen+1
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sta a
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//SEG14 [8] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) $29) ← (byte) main::a#2 -- _deref_pbuc1=vbuz1
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lda a
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sta screen+$29
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//SEG15 [9] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 2) ← (byte/signed byte/word/signed word/dword/signed dword) 1+(byte) 'l' -- _deref_pbuc1=vbuc2
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lda #1+'l'
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sta screen+2
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//SEG16 [10] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) $2a) ← (byte) 'l' -- _deref_pbuc1=vbuc2
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// Chained assignment with a modification of the result
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lda #'l'
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sta screen+$2a
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jmp breturn
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//SEG17 main::@return
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breturn:
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//SEG18 [11] 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) ← (byte) 'c' [ ] ( main:2 [ ] ) always clobbers reg byte a
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Statement [5] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) $28) ← (byte) 'c' [ ] ( main:2 [ ] ) always clobbers reg byte a
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Statement [6] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 1) ← (byte) 'm' [ ] ( main:2 [ ] ) always clobbers reg byte a
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Statement [9] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 2) ← (byte/signed byte/word/signed word/dword/signed dword) 1+(byte) 'l' [ ] ( main:2 [ ] ) always clobbers reg byte a
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Statement [10] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) $2a) ← (byte) 'l' [ ] ( main:2 [ ] ) always clobbers reg byte a
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Potential registers zp ZP_BYTE:2 [ main::a#2 ] : zp ZP_BYTE:2 , reg byte a , reg byte x , reg byte y ,
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REGISTER UPLIFT SCOPES
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Uplift Scope [main] 4: zp ZP_BYTE:2 [ main::a#2 ]
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Uplift Scope []
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Uplifting [main] best 59 combination reg byte a [ main::a#2 ]
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Uplifting [] best 59 combination
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ASSEMBLER BEFORE OPTIMIZATION
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//SEG0 File Comments
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// Tests that chained assignments work as intended
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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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//SEG10 [4] *((const byte*) main::screen#0) ← (byte) 'c' -- _deref_pbuc1=vbuc2
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lda #'c'
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sta screen
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//SEG11 [5] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) $28) ← (byte) 'c' -- _deref_pbuc1=vbuc2
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lda #'c'
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sta screen+$28
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//SEG12 [6] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 1) ← (byte) 'm' -- _deref_pbuc1=vbuc2
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lda #'m'
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sta screen+1
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//SEG13 [7] (byte) main::a#2 ← *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 1) -- vbuaa=_deref_pbuc1
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lda screen+1
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//SEG14 [8] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) $29) ← (byte) main::a#2 -- _deref_pbuc1=vbuaa
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sta screen+$29
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//SEG15 [9] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 2) ← (byte/signed byte/word/signed word/dword/signed dword) 1+(byte) 'l' -- _deref_pbuc1=vbuc2
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lda #1+'l'
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sta screen+2
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//SEG16 [10] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) $2a) ← (byte) 'l' -- _deref_pbuc1=vbuc2
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// Chained assignment with a modification of the result
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lda #'l'
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sta screen+$2a
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jmp breturn
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//SEG17 main::@return
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breturn:
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//SEG18 [11] 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 lda #'c'
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Removing instruction lda screen+1
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Succesful ASM optimization Pass5UnnecesaryLoadElimination
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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::a
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(byte) main::a#2 reg byte a 4.0
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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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reg byte a [ main::a#2 ]
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FINAL ASSEMBLER
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Score: 38
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//SEG0 File Comments
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// Tests that chained assignments work as intended
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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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//SEG10 [4] *((const byte*) main::screen#0) ← (byte) 'c' -- _deref_pbuc1=vbuc2
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lda #'c'
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sta screen
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//SEG11 [5] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) $28) ← (byte) 'c' -- _deref_pbuc1=vbuc2
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sta screen+$28
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//SEG12 [6] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 1) ← (byte) 'm' -- _deref_pbuc1=vbuc2
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lda #'m'
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sta screen+1
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//SEG13 [7] (byte) main::a#2 ← *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 1) -- vbuaa=_deref_pbuc1
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//SEG14 [8] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) $29) ← (byte) main::a#2 -- _deref_pbuc1=vbuaa
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sta screen+$29
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//SEG15 [9] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) 2) ← (byte/signed byte/word/signed word/dword/signed dword) 1+(byte) 'l' -- _deref_pbuc1=vbuc2
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lda #1+'l'
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sta screen+2
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//SEG16 [10] *((const byte*) main::screen#0+(byte/signed byte/word/signed word/dword/signed dword) $2a) ← (byte) 'l' -- _deref_pbuc1=vbuc2
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// Chained assignment with a modification of the result
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lda #'l'
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sta screen+$2a
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//SEG17 main::@return
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//SEG18 [11] return
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rts
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}
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