mirror of
https://gitlab.com/camelot/kickc.git
synced 2024-10-04 05:59:26 +00:00
424 lines
16 KiB
Plaintext
424 lines
16 KiB
Plaintext
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CONTROL FLOW GRAPH SSA
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void main()
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main: scope:[main] from __start
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main::screen#0 = (byte*)$400
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main::i#0 = 0
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to:main::@1
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main::@1: scope:[main] from main main::@1
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main::screen#3 = phi( main/main::screen#0, main::@1/main::screen#2 )
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main::i#2 = phi( main/main::i#0, main::@1/main::i#1 )
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main::$0 = main::i#2 * 2
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main::$1 = main::$0 + main::i#2
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main::$2 = main::$1 + 3
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*main::screen#3 = main::$2
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main::screen#1 = ++ main::screen#3
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main::$3 = main::i#2 * 2
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main::$4 = main::$3 + main::i#2
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main::$5 = main::$4 + 3
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*main::screen#1 = main::$5
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main::screen#2 = ++ main::screen#1
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main::i#1 = main::i#2 + rangenext(0,2)
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main::$6 = main::i#1 != rangelast(0,2)
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if(main::$6) goto main::@1
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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 __start()
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__start: scope:[__start] from
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call main
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to:__start::@1
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__start::@1: scope:[__start] from __start
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to:__start::@return
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__start::@return: scope:[__start] from __start::@1
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return
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to:@return
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SYMBOL TABLE SSA
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void __start()
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void main()
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number~ main::$0
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number~ main::$1
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number~ main::$2
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number~ main::$3
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number~ main::$4
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number~ main::$5
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bool~ main::$6
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byte main::i
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byte main::i#0
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byte main::i#1
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byte main::i#2
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byte* main::screen
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byte* main::screen#0
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byte* main::screen#1
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byte* main::screen#2
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byte* main::screen#3
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Adding number conversion cast (unumber) 2 in main::$0 = main::i#2 * 2
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Adding number conversion cast (unumber) main::$0 in main::$0 = main::i#2 * (unumber)2
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Adding number conversion cast (unumber) main::$1 in main::$1 = main::$0 + main::i#2
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Adding number conversion cast (unumber) 3 in main::$2 = main::$1 + 3
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Adding number conversion cast (unumber) main::$2 in main::$2 = main::$1 + (unumber)3
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Adding number conversion cast (unumber) 2 in main::$3 = main::i#2 * 2
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Adding number conversion cast (unumber) main::$3 in main::$3 = main::i#2 * (unumber)2
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Adding number conversion cast (unumber) main::$4 in main::$4 = main::$3 + main::i#2
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Adding number conversion cast (unumber) 3 in main::$5 = main::$4 + 3
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Adding number conversion cast (unumber) main::$5 in main::$5 = main::$4 + (unumber)3
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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 2
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Simplifying constant integer cast 3
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Simplifying constant integer cast 2
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Simplifying constant integer cast 3
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Successful SSA optimization PassNCastSimplification
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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) 2
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Finalized unsigned number type (byte) 3
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Inferred type updated to byte in main::$0 = main::i#2 * 2
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Inferred type updated to byte in main::$1 = main::$0 + main::i#2
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Inferred type updated to byte in main::$2 = main::$1 + 3
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Inferred type updated to byte in main::$3 = main::i#2 * 2
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Inferred type updated to byte in main::$4 = main::$3 + main::i#2
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Inferred type updated to byte in main::$5 = main::$4 + 3
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Identified duplicate assignment right side [8] main::$3 = main::i#2 * 2
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Successful SSA optimization Pass2DuplicateRValueIdentification
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Simple Condition main::$6 [15] if(main::i#1!=rangelast(0,2)) goto main::@1
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Successful SSA optimization Pass2ConditionalJumpSimplification
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Constant main::screen#0 = (byte*) 1024
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Constant main::i#0 = 0
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Successful SSA optimization Pass2ConstantIdentification
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Resolved ranged next value [13] main::i#1 = ++ main::i#2 to ++
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Resolved ranged comparison value [15] if(main::i#1!=rangelast(0,2)) goto main::@1 to 3
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Removing unused procedure __start
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Removing unused procedure block __start
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Removing unused procedure block __start::@1
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Removing unused procedure block __start::@return
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Successful SSA optimization PassNEliminateEmptyStart
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Adding number conversion cast (unumber) 3 in [12] if(main::i#1!=3) goto main::@1
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Successful SSA optimization PassNAddNumberTypeConversions
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Simplifying constant integer cast 3
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Successful SSA optimization PassNCastSimplification
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Finalized unsigned number type (byte) 3
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Alias main::$3 = main::$0
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Successful SSA optimization Pass2AliasElimination
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Identified duplicate assignment right side [7] main::$4 = main::$3 + main::i#2
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Successful SSA optimization Pass2DuplicateRValueIdentification
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Alias main::$4 = main::$1
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Successful SSA optimization Pass2AliasElimination
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Rewriting multiplication to use shift [1] main::$3 = main::i#2 * 2
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Successful SSA optimization Pass2MultiplyToShiftRewriting
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Inlining constant with var siblings main::screen#0
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Inlining constant with var siblings main::i#0
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Constant inlined main::screen#0 = (byte*) 1024
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Constant inlined main::i#0 = 0
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Successful SSA optimization Pass2ConstantInlining
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Added new block during phi lifting main::@2(between main::@1 and main::@1)
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Adding NOP phi() at start of main
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CALL GRAPH
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Created 2 initial phi equivalence classes
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Coalesced [13] main::i#3 = main::i#1
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Coalesced [14] main::screen#4 = main::screen#2
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Coalesced down to 2 phi equivalence classes
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Culled Empty Block label main::@2
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Adding NOP phi() at start of main
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FINAL CONTROL FLOW GRAPH
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void main()
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main: scope:[main] from
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[0] phi()
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to:main::@1
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main::@1: scope:[main] from main main::@1
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[1] main::screen#3 = phi( main/(byte*) 1024, main::@1/main::screen#2 )
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[1] main::i#2 = phi( main/0, main::@1/main::i#1 )
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[2] main::$3 = main::i#2 << 1
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[3] main::$4 = main::$3 + main::i#2
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[4] main::$2 = main::$4 + 3
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[5] *main::screen#3 = main::$2
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[6] main::screen#1 = ++ main::screen#3
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[7] main::$5 = main::$4 + 3
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[8] *main::screen#1 = main::$5
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[9] main::screen#2 = ++ main::screen#1
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[10] main::i#1 = ++ main::i#2
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[11] if(main::i#1!=3) goto main::@1
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to:main::@return
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main::@return: scope:[main] from main::@1
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[12] return
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to:@return
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VARIABLE REGISTER WEIGHTS
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void main()
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byte~ main::$2 22.0
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byte~ main::$3 22.0
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byte~ main::$4 8.25
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byte~ main::$5 22.0
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byte main::i
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byte main::i#1 16.5
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byte main::i#2 4.888888888888889
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byte* main::screen
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byte* main::screen#1 11.0
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byte* main::screen#2 7.333333333333333
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byte* main::screen#3 6.6000000000000005
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Initial phi equivalence classes
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[ main::i#2 main::i#1 ]
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[ main::screen#3 main::screen#2 ]
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Added variable main::$3 to live range equivalence class [ main::$3 ]
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Added variable main::$4 to live range equivalence class [ main::$4 ]
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Added variable main::$2 to live range equivalence class [ main::$2 ]
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Added variable main::screen#1 to live range equivalence class [ main::screen#1 ]
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Added variable main::$5 to live range equivalence class [ main::$5 ]
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Complete equivalence classes
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[ main::i#2 main::i#1 ]
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[ main::screen#3 main::screen#2 ]
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[ main::$3 ]
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[ main::$4 ]
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[ main::$2 ]
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[ main::screen#1 ]
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[ main::$5 ]
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Allocated zp[1]:2 [ main::i#2 main::i#1 ]
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Allocated zp[2]:3 [ main::screen#3 main::screen#2 ]
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Allocated zp[1]:5 [ main::$3 ]
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Allocated zp[1]:6 [ main::$4 ]
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Allocated zp[1]:7 [ main::$2 ]
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Allocated zp[2]:8 [ main::screen#1 ]
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Allocated zp[1]:10 [ main::$5 ]
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REGISTER UPLIFT POTENTIAL REGISTERS
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Statement [2] main::$3 = main::i#2 << 1 [ main::i#2 main::screen#3 main::$3 ] ( [ main::i#2 main::screen#3 main::$3 ] { } ) always clobbers reg byte a
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Removing always clobbered register reg byte a as potential for zp[1]:2 [ main::i#2 main::i#1 ]
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Statement [3] main::$4 = main::$3 + main::i#2 [ main::i#2 main::screen#3 main::$4 ] ( [ main::i#2 main::screen#3 main::$4 ] { } ) always clobbers reg byte a
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Statement [5] *main::screen#3 = main::$2 [ main::i#2 main::screen#3 main::$4 ] ( [ main::i#2 main::screen#3 main::$4 ] { } ) always clobbers reg byte y
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Removing always clobbered register reg byte y as potential for zp[1]:2 [ main::i#2 main::i#1 ]
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Removing always clobbered register reg byte y as potential for zp[1]:6 [ main::$4 ]
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Statement [6] main::screen#1 = ++ main::screen#3 [ main::i#2 main::$4 main::screen#1 ] ( [ main::i#2 main::$4 main::screen#1 ] { } ) always clobbers reg byte a
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Removing always clobbered register reg byte a as potential for zp[1]:6 [ main::$4 ]
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Statement [7] main::$5 = main::$4 + 3 [ main::i#2 main::screen#1 main::$5 ] ( [ main::i#2 main::screen#1 main::$5 ] { } ) always clobbers reg byte a
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Statement [8] *main::screen#1 = main::$5 [ main::i#2 main::screen#1 ] ( [ main::i#2 main::screen#1 ] { } ) always clobbers reg byte y
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Statement [9] main::screen#2 = ++ main::screen#1 [ main::i#2 main::screen#2 ] ( [ main::i#2 main::screen#2 ] { } ) always clobbers reg byte a
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Statement [2] main::$3 = main::i#2 << 1 [ main::i#2 main::screen#3 main::$3 ] ( [ main::i#2 main::screen#3 main::$3 ] { } ) always clobbers reg byte a
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Statement [3] main::$4 = main::$3 + main::i#2 [ main::i#2 main::screen#3 main::$4 ] ( [ main::i#2 main::screen#3 main::$4 ] { } ) always clobbers reg byte a
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Statement [4] main::$2 = main::$4 + 3 [ main::i#2 main::screen#3 main::$4 main::$2 ] ( [ main::i#2 main::screen#3 main::$4 main::$2 ] { } ) always clobbers reg byte a
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Statement [5] *main::screen#3 = main::$2 [ main::i#2 main::screen#3 main::$4 ] ( [ main::i#2 main::screen#3 main::$4 ] { } ) always clobbers reg byte y
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Statement [6] main::screen#1 = ++ main::screen#3 [ main::i#2 main::$4 main::screen#1 ] ( [ main::i#2 main::$4 main::screen#1 ] { } ) always clobbers reg byte a
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Statement [7] main::$5 = main::$4 + 3 [ main::i#2 main::screen#1 main::$5 ] ( [ main::i#2 main::screen#1 main::$5 ] { } ) always clobbers reg byte a
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Statement [8] *main::screen#1 = main::$5 [ main::i#2 main::screen#1 ] ( [ main::i#2 main::screen#1 ] { } ) always clobbers reg byte y
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Statement [9] main::screen#2 = ++ main::screen#1 [ main::i#2 main::screen#2 ] ( [ main::i#2 main::screen#2 ] { } ) always clobbers reg byte a
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Potential registers zp[1]:2 [ main::i#2 main::i#1 ] : zp[1]:2 , reg byte x ,
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Potential registers zp[2]:3 [ main::screen#3 main::screen#2 ] : zp[2]:3 ,
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Potential registers zp[1]:5 [ main::$3 ] : zp[1]:5 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp[1]:6 [ main::$4 ] : zp[1]:6 , reg byte x ,
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Potential registers zp[1]:7 [ main::$2 ] : zp[1]:7 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp[2]:8 [ main::screen#1 ] : zp[2]:8 ,
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Potential registers zp[1]:10 [ main::$5 ] : zp[1]:10 , reg byte a , reg byte x , reg byte y ,
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REGISTER UPLIFT SCOPES
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Uplift Scope [main] 22: zp[1]:5 [ main::$3 ] 22: zp[1]:7 [ main::$2 ] 22: zp[1]:10 [ main::$5 ] 21.39: zp[1]:2 [ main::i#2 main::i#1 ] 13.93: zp[2]:3 [ main::screen#3 main::screen#2 ] 11: zp[2]:8 [ main::screen#1 ] 8.25: zp[1]:6 [ main::$4 ]
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Uplift Scope []
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Uplifting [main] best 1091 combination reg byte a [ main::$3 ] reg byte a [ main::$2 ] reg byte a [ main::$5 ] reg byte x [ main::i#2 main::i#1 ] zp[2]:3 [ main::screen#3 main::screen#2 ] zp[2]:8 [ main::screen#1 ] zp[1]:6 [ main::$4 ]
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Limited combination testing to 100 combinations of 256 possible.
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Uplifting [] best 1091 combination
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Attempting to uplift remaining variables inzp[1]:6 [ main::$4 ]
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Uplifting [main] best 1091 combination zp[1]:6 [ main::$4 ]
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Coalescing zero page register [ zp[2]:3 [ main::screen#3 main::screen#2 ] ] with [ zp[2]:8 [ main::screen#1 ] ] - score: 2
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Allocated (was zp[2]:3) zp[2]:2 [ main::screen#3 main::screen#2 main::screen#1 ]
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Allocated (was zp[1]:6) zp[1]:4 [ main::$4 ]
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ASSEMBLER BEFORE OPTIMIZATION
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// File Comments
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// Tests optimization of identical sub-expressions
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// 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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// Global Constants & labels
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// main
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main: {
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.label __4 = 4
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.label screen = 2
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// [1] phi from main to main::@1 [phi:main->main::@1]
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__b1_from_main:
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// [1] phi main::screen#3 = (byte*) 1024 [phi:main->main::@1#0] -- pbuz1=pbuc1
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lda #<$400
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sta.z screen
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lda #>$400
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sta.z screen+1
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// [1] phi main::i#2 = 0 [phi:main->main::@1#1] -- vbuxx=vbuc1
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ldx #0
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jmp __b1
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// [1] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
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__b1_from___b1:
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// [1] phi main::screen#3 = main::screen#2 [phi:main::@1->main::@1#0] -- register_copy
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// [1] phi main::i#2 = main::i#1 [phi:main::@1->main::@1#1] -- register_copy
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jmp __b1
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// main::@1
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__b1:
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// [2] main::$3 = main::i#2 << 1 -- vbuaa=vbuxx_rol_1
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txa
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asl
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// [3] main::$4 = main::$3 + main::i#2 -- vbuz1=vbuaa_plus_vbuxx
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stx.z $ff
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clc
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adc.z $ff
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sta.z __4
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// [4] main::$2 = main::$4 + 3 -- vbuaa=vbuz1_plus_vbuc1
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lda #3
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clc
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adc.z __4
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// [5] *main::screen#3 = main::$2 -- _deref_pbuz1=vbuaa
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ldy #0
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sta (screen),y
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// [6] main::screen#1 = ++ main::screen#3 -- pbuz1=_inc_pbuz1
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inc.z screen
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bne !+
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inc.z screen+1
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!:
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// [7] main::$5 = main::$4 + 3 -- vbuaa=vbuz1_plus_vbuc1
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lda #3
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clc
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adc.z __4
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// [8] *main::screen#1 = main::$5 -- _deref_pbuz1=vbuaa
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ldy #0
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sta (screen),y
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// [9] main::screen#2 = ++ main::screen#1 -- pbuz1=_inc_pbuz1
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inc.z screen
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bne !+
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inc.z screen+1
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!:
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// [10] main::i#1 = ++ main::i#2 -- vbuxx=_inc_vbuxx
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inx
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// [11] if(main::i#1!=3) goto main::@1 -- vbuxx_neq_vbuc1_then_la1
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cpx #3
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bne __b1_from___b1
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jmp __breturn
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// main::@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 __breturn
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Succesful ASM optimization Pass5NextJumpElimination
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Replacing label __b1_from___b1 with __b1
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Removing instruction __b1_from___b1:
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Succesful ASM optimization Pass5RedundantLabelElimination
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Removing instruction __b1_from_main:
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Removing instruction __breturn:
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Succesful ASM optimization Pass5UnusedLabelElimination
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Removing instruction jmp __b1
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Succesful ASM optimization Pass5NextJumpElimination
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FINAL SYMBOL TABLE
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void main()
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byte~ main::$2 reg byte a 22.0
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byte~ main::$3 reg byte a 22.0
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byte~ main::$4 zp[1]:4 8.25
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byte~ main::$5 reg byte a 22.0
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byte main::i
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byte main::i#1 reg byte x 16.5
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byte main::i#2 reg byte x 4.888888888888889
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byte* main::screen
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byte* main::screen#1 screen zp[2]:2 11.0
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byte* main::screen#2 screen zp[2]:2 7.333333333333333
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byte* main::screen#3 screen zp[2]:2 6.6000000000000005
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reg byte x [ main::i#2 main::i#1 ]
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zp[2]:2 [ main::screen#3 main::screen#2 main::screen#1 ]
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reg byte a [ main::$3 ]
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zp[1]:4 [ main::$4 ]
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reg byte a [ main::$2 ]
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reg byte a [ main::$5 ]
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FINAL ASSEMBLER
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Score: 891
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// File Comments
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// Tests optimization of identical sub-expressions
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// 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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// Global Constants & labels
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// main
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main: {
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.label __4 = 4
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.label screen = 2
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// [1] phi from main to main::@1 [phi:main->main::@1]
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// [1] phi main::screen#3 = (byte*) 1024 [phi:main->main::@1#0] -- pbuz1=pbuc1
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lda #<$400
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sta.z screen
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lda #>$400
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sta.z screen+1
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// [1] phi main::i#2 = 0 [phi:main->main::@1#1] -- vbuxx=vbuc1
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ldx #0
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// [1] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
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// [1] phi main::screen#3 = main::screen#2 [phi:main::@1->main::@1#0] -- register_copy
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// [1] phi main::i#2 = main::i#1 [phi:main::@1->main::@1#1] -- register_copy
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// main::@1
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__b1:
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// i*2
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// [2] main::$3 = main::i#2 << 1 -- vbuaa=vbuxx_rol_1
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txa
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asl
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// i*2+i
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// [3] main::$4 = main::$3 + main::i#2 -- vbuz1=vbuaa_plus_vbuxx
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stx.z $ff
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clc
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adc.z $ff
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sta.z __4
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// i*2+i+3
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// [4] main::$2 = main::$4 + 3 -- vbuaa=vbuz1_plus_vbuc1
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lda #3
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clc
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adc.z __4
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// *screen++ = i*2+i+3
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// [5] *main::screen#3 = main::$2 -- _deref_pbuz1=vbuaa
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ldy #0
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sta (screen),y
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// *screen++ = i*2+i+3;
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// [6] main::screen#1 = ++ main::screen#3 -- pbuz1=_inc_pbuz1
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inc.z screen
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bne !+
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inc.z screen+1
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!:
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// i*2+i+3
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// [7] main::$5 = main::$4 + 3 -- vbuaa=vbuz1_plus_vbuc1
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lda #3
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clc
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adc.z __4
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// *screen++ = i*2+i+3
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// [8] *main::screen#1 = main::$5 -- _deref_pbuz1=vbuaa
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ldy #0
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sta (screen),y
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// *screen++ = i*2+i+3;
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// [9] main::screen#2 = ++ main::screen#1 -- pbuz1=_inc_pbuz1
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inc.z screen
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bne !+
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inc.z screen+1
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!:
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// for( byte i: 0..2)
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// [10] main::i#1 = ++ main::i#2 -- vbuxx=_inc_vbuxx
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inx
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// [11] if(main::i#1!=3) goto main::@1 -- vbuxx_neq_vbuc1_then_la1
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cpx #3
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bne __b1
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// main::@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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