2019-07-08 14:43:09 +00:00
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Identified constant variable (byte*) SCREEN
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Culled Empty Block (label) main::@4
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CONTROL FLOW GRAPH SSA
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@begin: scope:[] from
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(byte*) SCREEN#0 ← ((byte*)) (number) $400
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to:@1
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main: scope:[main] from @1
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(byte) main::y#0 ← (byte) 5
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to:main::@1
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main::@1: scope:[main] from main main::@3
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(byte) main::y#2 ← phi( main/(byte) main::y#0 main::@3/(byte) main::y#1 )
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(word~) main::$0 ← ((word)) (byte) main::y#2
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(number~) main::$1 ← (word~) main::$0 * (number) $28
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(byte*~) main::$2 ← (byte*) SCREEN#0 + (number~) main::$1
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(byte*) main::line#0 ← (byte*~) main::$2
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(byte) main::x#0 ← (byte) 5
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to:main::@2
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main::@2: scope:[main] from main::@1 main::@2
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(byte*) main::line#1 ← phi( main::@1/(byte*) main::line#0 main::@2/(byte*) main::line#1 )
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(byte) main::y#3 ← phi( main::@1/(byte) main::y#2 main::@2/(byte) main::y#3 )
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(byte) main::x#2 ← phi( main::@1/(byte) main::x#0 main::@2/(byte) main::x#1 )
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(byte~) main::$3 ← (byte) main::x#2 + (byte) main::y#3
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*((byte*) main::line#1 + (byte) main::x#2) ← (byte~) main::$3
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(byte) main::x#1 ← (byte) main::x#2 + rangenext(5,$f)
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(bool~) main::$4 ← (byte) main::x#1 != rangelast(5,$f)
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if((bool~) main::$4) goto main::@2
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to:main::@3
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main::@3: scope:[main] from main::@2
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(byte) main::y#4 ← phi( main::@2/(byte) main::y#3 )
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(byte) main::y#1 ← (byte) main::y#4 + rangenext(5,$f)
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(bool~) main::$5 ← (byte) main::y#1 != rangelast(5,$f)
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if((bool~) main::$5) goto main::@1
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to:main::@return
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main::@return: scope:[main] from main::@3
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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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(byte*) SCREEN
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(byte*) SCREEN#0
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(void()) main()
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(word~) main::$0
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(number~) main::$1
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(byte*~) main::$2
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(byte~) main::$3
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(bool~) main::$4
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(bool~) main::$5
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(label) main::@1
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(label) main::@2
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(label) main::@3
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(label) main::@return
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(byte*) main::line
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(byte*) main::line#0
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(byte*) main::line#1
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(byte) main::x
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(byte) main::x#0
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(byte) main::x#1
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(byte) main::x#2
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(byte) main::y
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(byte) main::y#0
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(byte) main::y#1
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(byte) main::y#2
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(byte) main::y#3
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(byte) main::y#4
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Adding number conversion cast (unumber) $28 in (number~) main::$1 ← (word~) main::$0 * (number) $28
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Adding number conversion cast (unumber) main::$1 in (number~) main::$1 ← (word~) main::$0 * (unumber)(number) $28
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Successful SSA optimization PassNAddNumberTypeConversions
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Inlining cast (byte*) SCREEN#0 ← (byte*)(number) $400
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Inlining cast (word~) main::$0 ← (word)(byte) main::y#2
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Successful SSA optimization Pass2InlineCast
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Simplifying constant pointer cast (byte*) 1024
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Simplifying constant integer cast $28
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Successful SSA optimization PassNCastSimplification
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Finalized unsigned number type (byte) $28
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Inferred type updated to word in (unumber~) main::$1 ← (word~) main::$0 * (byte) $28
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Alias (byte*) main::line#0 = (byte*~) main::$2
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Alias (byte) main::y#3 = (byte) main::y#4
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Successful SSA optimization Pass2AliasElimination
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Identical Phi Values (byte) main::y#3 (byte) main::y#2
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Identical Phi Values (byte*) main::line#1 (byte*) main::line#0
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Successful SSA optimization Pass2IdenticalPhiElimination
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Simple Condition (bool~) main::$4 [13] if((byte) main::x#1!=rangelast(5,$f)) goto main::@2
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Simple Condition (bool~) main::$5 [17] if((byte) main::y#1!=rangelast(5,$f)) goto main::@1
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Successful SSA optimization Pass2ConditionalJumpSimplification
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Constant (const byte*) SCREEN#0 = (byte*) 1024
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Constant (const byte) main::y#0 = 5
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Constant (const byte) main::x#0 = 5
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Successful SSA optimization Pass2ConstantIdentification
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Resolved ranged next value [11] main::x#1 ← ++ main::x#2 to ++
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Resolved ranged comparison value [13] if(main::x#1!=rangelast(5,$f)) goto main::@2 to (number) $10
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Resolved ranged next value [15] main::y#1 ← ++ main::y#2 to ++
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Resolved ranged comparison value [17] if(main::y#1!=rangelast(5,$f)) goto main::@1 to (number) $10
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Adding number conversion cast (unumber) $10 in if((byte) main::x#1!=(number) $10) goto main::@2
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Adding number conversion cast (unumber) $10 in if((byte) main::y#1!=(number) $10) goto main::@1
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Successful SSA optimization PassNAddNumberTypeConversions
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Simplifying constant integer cast $10
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Simplifying constant integer cast $10
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Successful SSA optimization PassNCastSimplification
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Finalized unsigned number type (byte) $10
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Finalized unsigned number type (byte) $10
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Rewriting multiplication to use shift and addition[2] (word~) main::$1 ← (word~) main::$0 * (byte) $28
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Inlining constant with var siblings (const byte) main::y#0
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Inlining constant with var siblings (const byte) main::x#0
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Constant inlined main::x#0 = (byte) 5
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Constant inlined main::y#0 = (byte) 5
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Successful SSA optimization Pass2ConstantInlining
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Alias (word~) main::$1 = (word) main::$8
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Successful SSA optimization Pass2AliasElimination
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Added new block during phi lifting main::@5(between main::@3 and main::@1)
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Added new block during phi lifting main::@6(between main::@2 and main::@2)
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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 @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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Created 2 initial phi equivalence classes
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Coalesced [20] main::y#5 ← main::y#1
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Coalesced [21] main::x#3 ← main::x#1
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Coalesced down to 2 phi equivalence classes
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Culled Empty Block (label) @2
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Culled Empty Block (label) main::@5
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Culled Empty Block (label) main::@6
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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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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] 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] phi()
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to:main::@1
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main::@1: scope:[main] from main main::@3
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[5] (byte) main::y#2 ← phi( main/(byte) 5 main::@3/(byte) main::y#1 )
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[6] (word~) main::$0 ← (word)(byte) main::y#2
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[7] (word) main::$6 ← (word~) main::$0 << (byte) 2
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[8] (word) main::$7 ← (word) main::$6 + (word~) main::$0
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[9] (word~) main::$1 ← (word) main::$7 << (byte) 3
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[10] (byte*) main::line#0 ← (const byte*) SCREEN#0 + (word~) main::$1
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to:main::@2
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main::@2: scope:[main] from main::@1 main::@2
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[11] (byte) main::x#2 ← phi( main::@1/(byte) 5 main::@2/(byte) main::x#1 )
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[12] (byte~) main::$3 ← (byte) main::x#2 + (byte) main::y#2
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[13] *((byte*) main::line#0 + (byte) main::x#2) ← (byte~) main::$3
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[14] (byte) main::x#1 ← ++ (byte) main::x#2
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[15] if((byte) main::x#1!=(byte) $10) goto main::@2
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to:main::@3
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main::@3: scope:[main] from main::@2
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[16] (byte) main::y#1 ← ++ (byte) main::y#2
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[17] if((byte) main::y#1!=(byte) $10) goto main::@1
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to:main::@return
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main::@return: scope:[main] from main::@3
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[18] return
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to:@return
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VARIABLE REGISTER WEIGHTS
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(byte*) SCREEN
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(void()) main()
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(word~) main::$0 16.5
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(word~) main::$1 22.0
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(byte~) main::$3 202.0
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(word) main::$6 22.0
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(word) main::$7 22.0
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(byte*) main::line
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(byte*) main::line#0 18.666666666666664
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(byte) main::x
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(byte) main::x#1 151.5
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(byte) main::x#2 134.66666666666666
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(byte) main::y
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(byte) main::y#1 16.5
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(byte) main::y#2 11.181818181818182
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Initial phi equivalence classes
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[ main::y#2 main::y#1 ]
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[ main::x#2 main::x#1 ]
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Added variable main::$0 to zero page equivalence class [ main::$0 ]
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Added variable main::$6 to zero page equivalence class [ main::$6 ]
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Added variable main::$7 to zero page equivalence class [ main::$7 ]
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Added variable main::$1 to zero page equivalence class [ main::$1 ]
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Added variable main::line#0 to zero page equivalence class [ main::line#0 ]
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Added variable main::$3 to zero page equivalence class [ main::$3 ]
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Complete equivalence classes
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[ main::y#2 main::y#1 ]
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[ main::x#2 main::x#1 ]
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[ main::$0 ]
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[ main::$6 ]
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[ main::$7 ]
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[ main::$1 ]
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[ main::line#0 ]
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[ main::$3 ]
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Allocated zp ZP_BYTE:2 [ main::y#2 main::y#1 ]
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Allocated zp ZP_BYTE:3 [ main::x#2 main::x#1 ]
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Allocated zp ZP_WORD:4 [ main::$0 ]
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Allocated zp ZP_WORD:6 [ main::$6 ]
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Allocated zp ZP_WORD:8 [ main::$7 ]
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Allocated zp ZP_WORD:10 [ main::$1 ]
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Allocated zp ZP_WORD:12 [ main::line#0 ]
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Allocated zp ZP_BYTE:14 [ main::$3 ]
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INITIAL ASM
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2019-07-25 15:06:17 +00:00
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Target platform is c64basic
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2019-07-08 14:43:09 +00:00
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// File Comments
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// Fill a square on the screen
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2019-07-25 15:06:17 +00:00
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// Upstart
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2019-07-08 14:43:09 +00:00
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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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// @begin
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bbegin:
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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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// [4] phi from @1 to main [phi:@1->main]
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main_from_b1:
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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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.label _0 = 4
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.label _1 = $a
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.label _3 = $e
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.label line = $c
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.label x = 3
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.label y = 2
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.label _6 = 6
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.label _7 = 8
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// [5] phi from main to main::@1 [phi:main->main::@1]
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b1_from_main:
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// [5] phi (byte) main::y#2 = (byte) 5 [phi:main->main::@1#0] -- vbuz1=vbuc1
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lda #5
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2019-08-07 19:00:19 +00:00
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sta.z y
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2019-07-08 14:43:09 +00:00
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jmp b1
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// [5] phi from main::@3 to main::@1 [phi:main::@3->main::@1]
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b1_from_b3:
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// [5] phi (byte) main::y#2 = (byte) main::y#1 [phi:main::@3->main::@1#0] -- register_copy
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jmp b1
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// main::@1
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b1:
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// [6] (word~) main::$0 ← (word)(byte) main::y#2 -- vwuz1=_word_vbuz2
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2019-08-07 19:00:19 +00:00
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lda.z y
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sta.z _0
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2019-07-08 14:43:09 +00:00
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lda #0
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2019-08-07 19:00:19 +00:00
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sta.z _0+1
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2019-07-08 14:43:09 +00:00
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// [7] (word) main::$6 ← (word~) main::$0 << (byte) 2 -- vwuz1=vwuz2_rol_2
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2019-08-07 19:00:19 +00:00
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lda.z _0
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2019-07-08 14:43:09 +00:00
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asl
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2019-08-07 19:00:19 +00:00
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sta.z _6
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lda.z _0+1
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2019-07-08 14:43:09 +00:00
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rol
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2019-08-07 19:00:19 +00:00
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sta.z _6+1
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asl.z _6
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rol.z _6+1
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2019-07-08 14:43:09 +00:00
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// [8] (word) main::$7 ← (word) main::$6 + (word~) main::$0 -- vwuz1=vwuz2_plus_vwuz3
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2019-08-07 19:00:19 +00:00
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lda.z _6
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2019-07-08 14:43:09 +00:00
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clc
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2019-08-07 19:00:19 +00:00
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adc.z _0
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sta.z _7
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lda.z _6+1
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adc.z _0+1
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sta.z _7+1
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2019-07-08 14:43:09 +00:00
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// [9] (word~) main::$1 ← (word) main::$7 << (byte) 3 -- vwuz1=vwuz2_rol_3
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2019-08-07 19:00:19 +00:00
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lda.z _7
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2019-07-08 14:43:09 +00:00
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asl
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2019-08-07 19:00:19 +00:00
|
|
|
sta.z _1
|
|
|
|
lda.z _7+1
|
2019-07-08 14:43:09 +00:00
|
|
|
rol
|
2019-08-07 19:00:19 +00:00
|
|
|
sta.z _1+1
|
|
|
|
asl.z _1
|
|
|
|
rol.z _1+1
|
|
|
|
asl.z _1
|
|
|
|
rol.z _1+1
|
2019-07-08 14:43:09 +00:00
|
|
|
// [10] (byte*) main::line#0 ← (const byte*) SCREEN#0 + (word~) main::$1 -- pbuz1=pbuc1_plus_vwuz2
|
2019-08-07 19:00:19 +00:00
|
|
|
lda.z _1
|
2019-07-08 14:43:09 +00:00
|
|
|
clc
|
|
|
|
adc #<SCREEN
|
2019-08-07 19:00:19 +00:00
|
|
|
sta.z line
|
|
|
|
lda.z _1+1
|
2019-07-08 14:43:09 +00:00
|
|
|
adc #>SCREEN
|
2019-08-07 19:00:19 +00:00
|
|
|
sta.z line+1
|
2019-07-08 14:43:09 +00:00
|
|
|
// [11] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
|
|
|
|
b2_from_b1:
|
|
|
|
// [11] phi (byte) main::x#2 = (byte) 5 [phi:main::@1->main::@2#0] -- vbuz1=vbuc1
|
|
|
|
lda #5
|
2019-08-07 19:00:19 +00:00
|
|
|
sta.z x
|
2019-07-08 14:43:09 +00:00
|
|
|
jmp b2
|
|
|
|
// [11] phi from main::@2 to main::@2 [phi:main::@2->main::@2]
|
|
|
|
b2_from_b2:
|
|
|
|
// [11] phi (byte) main::x#2 = (byte) main::x#1 [phi:main::@2->main::@2#0] -- register_copy
|
|
|
|
jmp b2
|
|
|
|
// main::@2
|
|
|
|
b2:
|
|
|
|
// [12] (byte~) main::$3 ← (byte) main::x#2 + (byte) main::y#2 -- vbuz1=vbuz2_plus_vbuz3
|
2019-08-07 19:00:19 +00:00
|
|
|
lda.z x
|
2019-07-08 14:43:09 +00:00
|
|
|
clc
|
2019-08-07 19:00:19 +00:00
|
|
|
adc.z y
|
|
|
|
sta.z _3
|
2019-07-08 14:43:09 +00:00
|
|
|
// [13] *((byte*) main::line#0 + (byte) main::x#2) ← (byte~) main::$3 -- pbuz1_derefidx_vbuz2=vbuz3
|
2019-08-07 19:00:19 +00:00
|
|
|
lda.z _3
|
|
|
|
ldy.z x
|
2019-07-08 14:43:09 +00:00
|
|
|
sta (line),y
|
|
|
|
// [14] (byte) main::x#1 ← ++ (byte) main::x#2 -- vbuz1=_inc_vbuz1
|
2019-08-07 19:00:19 +00:00
|
|
|
inc.z x
|
2019-07-08 14:43:09 +00:00
|
|
|
// [15] if((byte) main::x#1!=(byte) $10) goto main::@2 -- vbuz1_neq_vbuc1_then_la1
|
|
|
|
lda #$10
|
2019-08-07 19:00:19 +00:00
|
|
|
cmp.z x
|
2019-07-08 14:43:09 +00:00
|
|
|
bne b2_from_b2
|
|
|
|
jmp b3
|
|
|
|
// main::@3
|
|
|
|
b3:
|
|
|
|
// [16] (byte) main::y#1 ← ++ (byte) main::y#2 -- vbuz1=_inc_vbuz1
|
2019-08-07 19:00:19 +00:00
|
|
|
inc.z y
|
2019-07-08 14:43:09 +00:00
|
|
|
// [17] if((byte) main::y#1!=(byte) $10) goto main::@1 -- vbuz1_neq_vbuc1_then_la1
|
|
|
|
lda #$10
|
2019-08-07 19:00:19 +00:00
|
|
|
cmp.z y
|
2019-07-08 14:43:09 +00:00
|
|
|
bne b1_from_b3
|
|
|
|
jmp breturn
|
|
|
|
// main::@return
|
|
|
|
breturn:
|
|
|
|
// [18] return
|
|
|
|
rts
|
|
|
|
}
|
|
|
|
// File Data
|
|
|
|
|
|
|
|
REGISTER UPLIFT POTENTIAL REGISTERS
|
|
|
|
Statement [6] (word~) main::$0 ← (word)(byte) main::y#2 [ main::y#2 main::$0 ] ( main:2 [ main::y#2 main::$0 ] ) always clobbers reg byte a
|
|
|
|
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:2 [ main::y#2 main::y#1 ]
|
|
|
|
Statement [7] (word) main::$6 ← (word~) main::$0 << (byte) 2 [ main::y#2 main::$0 main::$6 ] ( main:2 [ main::y#2 main::$0 main::$6 ] ) always clobbers reg byte a
|
|
|
|
Statement [8] (word) main::$7 ← (word) main::$6 + (word~) main::$0 [ main::y#2 main::$7 ] ( main:2 [ main::y#2 main::$7 ] ) always clobbers reg byte a
|
|
|
|
Statement [9] (word~) main::$1 ← (word) main::$7 << (byte) 3 [ main::y#2 main::$1 ] ( main:2 [ main::y#2 main::$1 ] ) always clobbers reg byte a
|
|
|
|
Statement [10] (byte*) main::line#0 ← (const byte*) SCREEN#0 + (word~) main::$1 [ main::y#2 main::line#0 ] ( main:2 [ main::y#2 main::line#0 ] ) always clobbers reg byte a
|
|
|
|
Statement [12] (byte~) main::$3 ← (byte) main::x#2 + (byte) main::y#2 [ main::y#2 main::line#0 main::x#2 main::$3 ] ( main:2 [ main::y#2 main::line#0 main::x#2 main::$3 ] ) always clobbers reg byte a
|
|
|
|
Removing always clobbered register reg byte a as potential for zp ZP_BYTE:3 [ main::x#2 main::x#1 ]
|
|
|
|
Statement [6] (word~) main::$0 ← (word)(byte) main::y#2 [ main::y#2 main::$0 ] ( main:2 [ main::y#2 main::$0 ] ) always clobbers reg byte a
|
|
|
|
Statement [7] (word) main::$6 ← (word~) main::$0 << (byte) 2 [ main::y#2 main::$0 main::$6 ] ( main:2 [ main::y#2 main::$0 main::$6 ] ) always clobbers reg byte a
|
|
|
|
Statement [8] (word) main::$7 ← (word) main::$6 + (word~) main::$0 [ main::y#2 main::$7 ] ( main:2 [ main::y#2 main::$7 ] ) always clobbers reg byte a
|
|
|
|
Statement [9] (word~) main::$1 ← (word) main::$7 << (byte) 3 [ main::y#2 main::$1 ] ( main:2 [ main::y#2 main::$1 ] ) always clobbers reg byte a
|
|
|
|
Statement [10] (byte*) main::line#0 ← (const byte*) SCREEN#0 + (word~) main::$1 [ main::y#2 main::line#0 ] ( main:2 [ main::y#2 main::line#0 ] ) always clobbers reg byte a
|
|
|
|
Statement [12] (byte~) main::$3 ← (byte) main::x#2 + (byte) main::y#2 [ main::y#2 main::line#0 main::x#2 main::$3 ] ( main:2 [ main::y#2 main::line#0 main::x#2 main::$3 ] ) always clobbers reg byte a
|
|
|
|
Potential registers zp ZP_BYTE:2 [ main::y#2 main::y#1 ] : zp ZP_BYTE:2 , reg byte x , reg byte y ,
|
|
|
|
Potential registers zp ZP_BYTE:3 [ main::x#2 main::x#1 ] : zp ZP_BYTE:3 , reg byte x , reg byte y ,
|
|
|
|
Potential registers zp ZP_WORD:4 [ main::$0 ] : zp ZP_WORD:4 ,
|
|
|
|
Potential registers zp ZP_WORD:6 [ main::$6 ] : zp ZP_WORD:6 ,
|
|
|
|
Potential registers zp ZP_WORD:8 [ main::$7 ] : zp ZP_WORD:8 ,
|
|
|
|
Potential registers zp ZP_WORD:10 [ main::$1 ] : zp ZP_WORD:10 ,
|
|
|
|
Potential registers zp ZP_WORD:12 [ main::line#0 ] : zp ZP_WORD:12 ,
|
|
|
|
Potential registers zp ZP_BYTE:14 [ main::$3 ] : zp ZP_BYTE:14 , reg byte a , reg byte x , reg byte y ,
|
|
|
|
|
|
|
|
REGISTER UPLIFT SCOPES
|
|
|
|
Uplift Scope [main] 286.17: zp ZP_BYTE:3 [ main::x#2 main::x#1 ] 202: zp ZP_BYTE:14 [ main::$3 ] 27.68: zp ZP_BYTE:2 [ main::y#2 main::y#1 ] 22: zp ZP_WORD:6 [ main::$6 ] 22: zp ZP_WORD:8 [ main::$7 ] 22: zp ZP_WORD:10 [ main::$1 ] 18.67: zp ZP_WORD:12 [ main::line#0 ] 16.5: zp ZP_WORD:4 [ main::$0 ]
|
|
|
|
Uplift Scope []
|
|
|
|
|
|
|
|
Uplifting [main] best 4443 combination reg byte y [ main::x#2 main::x#1 ] reg byte a [ main::$3 ] zp ZP_BYTE:2 [ main::y#2 main::y#1 ] zp ZP_WORD:6 [ main::$6 ] zp ZP_WORD:8 [ main::$7 ] zp ZP_WORD:10 [ main::$1 ] zp ZP_WORD:12 [ main::line#0 ] zp ZP_WORD:4 [ main::$0 ]
|
|
|
|
Uplifting [] best 4443 combination
|
|
|
|
Attempting to uplift remaining variables inzp ZP_BYTE:2 [ main::y#2 main::y#1 ]
|
|
|
|
Uplifting [main] best 4443 combination zp ZP_BYTE:2 [ main::y#2 main::y#1 ]
|
2019-07-31 09:08:33 +00:00
|
|
|
Coalescing zero page register [ zp ZP_WORD:4 [ main::$0 ] ] with [ zp ZP_WORD:8 [ main::$7 ] ] - score: 1
|
|
|
|
Coalescing zero page register [ zp ZP_WORD:10 [ main::$1 ] ] with [ zp ZP_WORD:12 [ main::line#0 ] ] - score: 1
|
|
|
|
Coalescing zero page register [ zp ZP_WORD:4 [ main::$0 main::$7 ] ] with [ zp ZP_WORD:10 [ main::$1 main::line#0 ] ] - score: 1
|
2019-07-08 14:43:09 +00:00
|
|
|
Allocated (was zp ZP_WORD:4) zp ZP_WORD:3 [ main::$0 main::$7 main::$1 main::line#0 ]
|
|
|
|
Allocated (was zp ZP_WORD:6) zp ZP_WORD:5 [ main::$6 ]
|
|
|
|
|
|
|
|
ASSEMBLER BEFORE OPTIMIZATION
|
|
|
|
// File Comments
|
|
|
|
// Fill a square on the screen
|
2019-07-25 15:06:17 +00:00
|
|
|
// Upstart
|
2019-07-08 14:43:09 +00:00
|
|
|
.pc = $801 "Basic"
|
|
|
|
:BasicUpstart(bbegin)
|
|
|
|
.pc = $80d "Program"
|
|
|
|
// Global Constants & labels
|
|
|
|
.label SCREEN = $400
|
|
|
|
// @begin
|
|
|
|
bbegin:
|
|
|
|
// [1] phi from @begin to @1 [phi:@begin->@1]
|
|
|
|
b1_from_bbegin:
|
|
|
|
jmp b1
|
|
|
|
// @1
|
|
|
|
b1:
|
|
|
|
// [2] call main
|
|
|
|
// [4] phi from @1 to main [phi:@1->main]
|
|
|
|
main_from_b1:
|
|
|
|
jsr main
|
|
|
|
// [3] phi from @1 to @end [phi:@1->@end]
|
|
|
|
bend_from_b1:
|
|
|
|
jmp bend
|
|
|
|
// @end
|
|
|
|
bend:
|
|
|
|
// main
|
|
|
|
main: {
|
|
|
|
.label _0 = 3
|
|
|
|
.label _1 = 3
|
|
|
|
.label line = 3
|
|
|
|
.label y = 2
|
|
|
|
.label _6 = 5
|
|
|
|
.label _7 = 3
|
|
|
|
// [5] phi from main to main::@1 [phi:main->main::@1]
|
|
|
|
b1_from_main:
|
|
|
|
// [5] phi (byte) main::y#2 = (byte) 5 [phi:main->main::@1#0] -- vbuz1=vbuc1
|
|
|
|
lda #5
|
2019-08-07 19:00:19 +00:00
|
|
|
sta.z y
|
2019-07-08 14:43:09 +00:00
|
|
|
jmp b1
|
|
|
|
// [5] phi from main::@3 to main::@1 [phi:main::@3->main::@1]
|
|
|
|
b1_from_b3:
|
|
|
|
// [5] phi (byte) main::y#2 = (byte) main::y#1 [phi:main::@3->main::@1#0] -- register_copy
|
|
|
|
jmp b1
|
|
|
|
// main::@1
|
|
|
|
b1:
|
|
|
|
// [6] (word~) main::$0 ← (word)(byte) main::y#2 -- vwuz1=_word_vbuz2
|
2019-08-07 19:00:19 +00:00
|
|
|
lda.z y
|
|
|
|
sta.z _0
|
2019-07-08 14:43:09 +00:00
|
|
|
lda #0
|
2019-08-07 19:00:19 +00:00
|
|
|
sta.z _0+1
|
2019-07-08 14:43:09 +00:00
|
|
|
// [7] (word) main::$6 ← (word~) main::$0 << (byte) 2 -- vwuz1=vwuz2_rol_2
|
2019-08-07 19:00:19 +00:00
|
|
|
lda.z _0
|
2019-07-08 14:43:09 +00:00
|
|
|
asl
|
2019-08-07 19:00:19 +00:00
|
|
|
sta.z _6
|
|
|
|
lda.z _0+1
|
2019-07-08 14:43:09 +00:00
|
|
|
rol
|
2019-08-07 19:00:19 +00:00
|
|
|
sta.z _6+1
|
|
|
|
asl.z _6
|
|
|
|
rol.z _6+1
|
2019-07-08 14:43:09 +00:00
|
|
|
// [8] (word) main::$7 ← (word) main::$6 + (word~) main::$0 -- vwuz1=vwuz2_plus_vwuz1
|
2019-08-07 19:00:19 +00:00
|
|
|
lda.z _7
|
2019-07-08 14:43:09 +00:00
|
|
|
clc
|
2019-08-07 19:00:19 +00:00
|
|
|
adc.z _6
|
|
|
|
sta.z _7
|
|
|
|
lda.z _7+1
|
|
|
|
adc.z _6+1
|
|
|
|
sta.z _7+1
|
2019-07-08 14:43:09 +00:00
|
|
|
// [9] (word~) main::$1 ← (word) main::$7 << (byte) 3 -- vwuz1=vwuz1_rol_3
|
2019-08-07 19:00:19 +00:00
|
|
|
asl.z _1
|
|
|
|
rol.z _1+1
|
|
|
|
asl.z _1
|
|
|
|
rol.z _1+1
|
|
|
|
asl.z _1
|
|
|
|
rol.z _1+1
|
2019-07-08 14:43:09 +00:00
|
|
|
// [10] (byte*) main::line#0 ← (const byte*) SCREEN#0 + (word~) main::$1 -- pbuz1=pbuc1_plus_vwuz1
|
|
|
|
clc
|
2019-08-07 19:00:19 +00:00
|
|
|
lda.z line
|
2019-07-08 14:43:09 +00:00
|
|
|
adc #<SCREEN
|
2019-08-07 19:00:19 +00:00
|
|
|
sta.z line
|
|
|
|
lda.z line+1
|
2019-07-08 14:43:09 +00:00
|
|
|
adc #>SCREEN
|
2019-08-07 19:00:19 +00:00
|
|
|
sta.z line+1
|
2019-07-08 14:43:09 +00:00
|
|
|
// [11] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
|
|
|
|
b2_from_b1:
|
|
|
|
// [11] phi (byte) main::x#2 = (byte) 5 [phi:main::@1->main::@2#0] -- vbuyy=vbuc1
|
|
|
|
ldy #5
|
|
|
|
jmp b2
|
|
|
|
// [11] phi from main::@2 to main::@2 [phi:main::@2->main::@2]
|
|
|
|
b2_from_b2:
|
|
|
|
// [11] phi (byte) main::x#2 = (byte) main::x#1 [phi:main::@2->main::@2#0] -- register_copy
|
|
|
|
jmp b2
|
|
|
|
// main::@2
|
|
|
|
b2:
|
|
|
|
// [12] (byte~) main::$3 ← (byte) main::x#2 + (byte) main::y#2 -- vbuaa=vbuyy_plus_vbuz1
|
|
|
|
tya
|
|
|
|
clc
|
2019-08-07 19:00:19 +00:00
|
|
|
adc.z y
|
2019-07-08 14:43:09 +00:00
|
|
|
// [13] *((byte*) main::line#0 + (byte) main::x#2) ← (byte~) main::$3 -- pbuz1_derefidx_vbuyy=vbuaa
|
|
|
|
sta (line),y
|
|
|
|
// [14] (byte) main::x#1 ← ++ (byte) main::x#2 -- vbuyy=_inc_vbuyy
|
|
|
|
iny
|
|
|
|
// [15] if((byte) main::x#1!=(byte) $10) goto main::@2 -- vbuyy_neq_vbuc1_then_la1
|
|
|
|
cpy #$10
|
|
|
|
bne b2_from_b2
|
|
|
|
jmp b3
|
|
|
|
// main::@3
|
|
|
|
b3:
|
|
|
|
// [16] (byte) main::y#1 ← ++ (byte) main::y#2 -- vbuz1=_inc_vbuz1
|
2019-08-07 19:00:19 +00:00
|
|
|
inc.z y
|
2019-07-08 14:43:09 +00:00
|
|
|
// [17] if((byte) main::y#1!=(byte) $10) goto main::@1 -- vbuz1_neq_vbuc1_then_la1
|
|
|
|
lda #$10
|
2019-08-07 19:00:19 +00:00
|
|
|
cmp.z y
|
2019-07-08 14:43:09 +00:00
|
|
|
bne b1_from_b3
|
|
|
|
jmp breturn
|
|
|
|
// main::@return
|
|
|
|
breturn:
|
|
|
|
// [18] return
|
|
|
|
rts
|
|
|
|
}
|
|
|
|
// File Data
|
|
|
|
|
|
|
|
ASSEMBLER OPTIMIZATIONS
|
|
|
|
Removing instruction jmp b1
|
|
|
|
Removing instruction jmp bend
|
|
|
|
Removing instruction jmp b1
|
|
|
|
Removing instruction jmp b2
|
|
|
|
Removing instruction jmp b3
|
|
|
|
Removing instruction jmp breturn
|
|
|
|
Succesful ASM optimization Pass5NextJumpElimination
|
|
|
|
Replacing label b2_from_b2 with b2
|
|
|
|
Replacing label b1_from_b3 with b1
|
|
|
|
Removing instruction b1_from_bbegin:
|
|
|
|
Removing instruction b1:
|
|
|
|
Removing instruction main_from_b1:
|
|
|
|
Removing instruction bend_from_b1:
|
|
|
|
Removing instruction b1_from_b3:
|
|
|
|
Removing instruction b2_from_b2:
|
|
|
|
Succesful ASM optimization Pass5RedundantLabelElimination
|
|
|
|
Removing instruction bend:
|
|
|
|
Removing instruction b1_from_main:
|
|
|
|
Removing instruction b2_from_b1:
|
|
|
|
Removing instruction b3:
|
|
|
|
Removing instruction breturn:
|
|
|
|
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 jmp b1
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Removing instruction jmp b2
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Succesful ASM optimization Pass5NextJumpElimination
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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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(byte*) SCREEN
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(const byte*) SCREEN#0 SCREEN = (byte*) 1024
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(void()) main()
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(word~) main::$0 $0 zp ZP_WORD:3 16.5
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(word~) main::$1 $1 zp ZP_WORD:3 22.0
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(byte~) main::$3 reg byte a 202.0
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(word) main::$6 $6 zp ZP_WORD:5 22.0
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(word) main::$7 $7 zp ZP_WORD:3 22.0
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(label) main::@1
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(label) main::@2
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(label) main::@3
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(label) main::@return
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(byte*) main::line
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(byte*) main::line#0 line zp ZP_WORD:3 18.666666666666664
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(byte) main::x
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(byte) main::x#1 reg byte y 151.5
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(byte) main::x#2 reg byte y 134.66666666666666
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(byte) main::y
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(byte) main::y#1 y zp ZP_BYTE:2 16.5
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(byte) main::y#2 y zp ZP_BYTE:2 11.181818181818182
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zp ZP_BYTE:2 [ main::y#2 main::y#1 ]
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reg byte y [ main::x#2 main::x#1 ]
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zp ZP_WORD:3 [ main::$0 main::$7 main::$1 main::line#0 ]
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zp ZP_WORD:5 [ main::$6 ]
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reg byte a [ main::$3 ]
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FINAL ASSEMBLER
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Score: 3381
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// File Comments
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// Fill a square on the screen
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2019-07-25 15:06:17 +00:00
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// Upstart
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2019-07-08 14:43:09 +00:00
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.pc = $801 "Basic"
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:BasicUpstart(main)
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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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// @begin
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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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// [4] phi from @1 to main [phi:@1->main]
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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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.label _0 = 3
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.label _1 = 3
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.label line = 3
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.label y = 2
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.label _6 = 5
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.label _7 = 3
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// [5] phi from main to main::@1 [phi:main->main::@1]
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// [5] phi (byte) main::y#2 = (byte) 5 [phi:main->main::@1#0] -- vbuz1=vbuc1
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lda #5
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2019-08-07 19:00:19 +00:00
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sta.z y
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2019-07-08 14:43:09 +00:00
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// [5] phi from main::@3 to main::@1 [phi:main::@3->main::@1]
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// [5] phi (byte) main::y#2 = (byte) main::y#1 [phi:main::@3->main::@1#0] -- register_copy
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// main::@1
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b1:
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// (word)y
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// [6] (word~) main::$0 ← (word)(byte) main::y#2 -- vwuz1=_word_vbuz2
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2019-08-07 19:00:19 +00:00
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lda.z y
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sta.z _0
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2019-07-08 14:43:09 +00:00
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lda #0
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2019-08-07 19:00:19 +00:00
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sta.z _0+1
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2019-07-08 14:43:09 +00:00
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// (word)y*40
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// [7] (word) main::$6 ← (word~) main::$0 << (byte) 2 -- vwuz1=vwuz2_rol_2
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2019-08-07 19:00:19 +00:00
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lda.z _0
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2019-07-08 14:43:09 +00:00
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asl
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2019-08-07 19:00:19 +00:00
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sta.z _6
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lda.z _0+1
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2019-07-08 14:43:09 +00:00
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rol
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2019-08-07 19:00:19 +00:00
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sta.z _6+1
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asl.z _6
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rol.z _6+1
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2019-07-08 14:43:09 +00:00
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// [8] (word) main::$7 ← (word) main::$6 + (word~) main::$0 -- vwuz1=vwuz2_plus_vwuz1
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2019-08-07 19:00:19 +00:00
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lda.z _7
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2019-07-08 14:43:09 +00:00
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clc
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2019-08-07 19:00:19 +00:00
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adc.z _6
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sta.z _7
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lda.z _7+1
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adc.z _6+1
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sta.z _7+1
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2019-07-08 14:43:09 +00:00
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// [9] (word~) main::$1 ← (word) main::$7 << (byte) 3 -- vwuz1=vwuz1_rol_3
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2019-08-07 19:00:19 +00:00
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asl.z _1
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rol.z _1+1
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asl.z _1
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rol.z _1+1
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asl.z _1
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rol.z _1+1
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2019-07-08 14:43:09 +00:00
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// line = SCREEN+(word)y*40
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// [10] (byte*) main::line#0 ← (const byte*) SCREEN#0 + (word~) main::$1 -- pbuz1=pbuc1_plus_vwuz1
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clc
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2019-08-07 19:00:19 +00:00
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lda.z line
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2019-07-08 14:43:09 +00:00
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adc #<SCREEN
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2019-08-07 19:00:19 +00:00
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sta.z line
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lda.z line+1
|
2019-07-08 14:43:09 +00:00
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adc #>SCREEN
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2019-08-07 19:00:19 +00:00
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sta.z line+1
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2019-07-08 14:43:09 +00:00
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// [11] phi from main::@1 to main::@2 [phi:main::@1->main::@2]
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// [11] phi (byte) main::x#2 = (byte) 5 [phi:main::@1->main::@2#0] -- vbuyy=vbuc1
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ldy #5
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// [11] phi from main::@2 to main::@2 [phi:main::@2->main::@2]
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// [11] phi (byte) main::x#2 = (byte) main::x#1 [phi:main::@2->main::@2#0] -- register_copy
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// main::@2
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b2:
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// x+y
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// [12] (byte~) main::$3 ← (byte) main::x#2 + (byte) main::y#2 -- vbuaa=vbuyy_plus_vbuz1
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tya
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clc
|
2019-08-07 19:00:19 +00:00
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adc.z y
|
2019-07-08 14:43:09 +00:00
|
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|
// line[x] = x+y
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// [13] *((byte*) main::line#0 + (byte) main::x#2) ← (byte~) main::$3 -- pbuz1_derefidx_vbuyy=vbuaa
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sta (line),y
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|
// for( byte x: 5..15)
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// [14] (byte) main::x#1 ← ++ (byte) main::x#2 -- vbuyy=_inc_vbuyy
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iny
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// [15] if((byte) main::x#1!=(byte) $10) goto main::@2 -- vbuyy_neq_vbuc1_then_la1
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|
|
cpy #$10
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|
bne b2
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|
// main::@3
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|
// for( byte y: 5..15)
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// [16] (byte) main::y#1 ← ++ (byte) main::y#2 -- vbuz1=_inc_vbuz1
|
2019-08-07 19:00:19 +00:00
|
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|
inc.z y
|
2019-07-08 14:43:09 +00:00
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|
// [17] if((byte) main::y#1!=(byte) $10) goto main::@1 -- vbuz1_neq_vbuc1_then_la1
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|
lda #$10
|
2019-08-07 19:00:19 +00:00
|
|
|
cmp.z y
|
2019-07-08 14:43:09 +00:00
|
|
|
bne b1
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|
// main::@return
|
|
|
|
// }
|
|
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|
// [18] return
|
|
|
|
rts
|
|
|
|
}
|
|
|
|
// File Data
|
|
|
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|