mirror of
https://gitlab.com/camelot/kickc.git
synced 2024-11-18 04:08:58 +00:00
580 lines
21 KiB
Plaintext
580 lines
21 KiB
Plaintext
Fixing pointer addition (word*~) main::$0 ← (const word*) main::words + (byte) main::i
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Culled Empty Block (label) main::@2
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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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(void()) main()
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main: scope:[main] from @1
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(byte) main::idx#0 ← (number) 0
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(byte) main::i#0 ← (byte) 0
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to:main::@1
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main::@1: scope:[main] from main main::@1
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(byte) main::idx#4 ← phi( main/(byte) main::idx#0 main::@1/(byte) main::idx#3 )
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(byte) main::i#2 ← phi( main/(byte) main::i#0 main::@1/(byte) main::i#1 )
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(byte~) main::$4 ← (byte) main::i#2 * (const byte) SIZEOF_WORD
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(word*~) main::$0 ← (const word*) main::words + (byte~) main::$4
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(word) main::w#0 ← *((word*~) main::$0)
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(byte~) main::$1 ← < (word) main::w#0
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*((const byte*) main::SCREEN + (byte) main::idx#4) ← (byte~) main::$1
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(byte) main::idx#1 ← ++ (byte) main::idx#4
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(byte~) main::$2 ← > (word) main::w#0
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*((const byte*) main::SCREEN + (byte) main::idx#1) ← (byte~) main::$2
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(byte) main::idx#2 ← ++ (byte) main::idx#1
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(byte) main::idx#3 ← ++ (byte) main::idx#2
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(byte) main::i#1 ← (byte) main::i#2 + rangenext(0,3)
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(bool~) main::$3 ← (byte) main::i#1 != rangelast(0,3)
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if((bool~) main::$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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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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(const byte) SIZEOF_WORD = (byte) 2
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(void()) main()
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(word*~) main::$0
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(byte~) main::$1
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(byte~) main::$2
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(bool~) main::$3
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(byte~) main::$4
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(label) main::@1
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(label) main::@return
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(const byte*) main::SCREEN = (byte*)(number) $400
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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::idx
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(byte) main::idx#0
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(byte) main::idx#1
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(byte) main::idx#2
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(byte) main::idx#3
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(byte) main::idx#4
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(word) main::w
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(word) main::w#0
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(const word*) main::words = { (word)(number) $3130, (word)(number) $3332, (word)(number) $3534, (word)(number) $3736 }
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Adding number conversion cast (unumber) 0 in (byte) main::idx#0 ← (number) 0
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Successful SSA optimization PassNAddNumberTypeConversions
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Inlining cast (byte) main::idx#0 ← (unumber)(number) 0
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Successful SSA optimization Pass2InlineCast
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Simplifying constant integer cast $3130
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Simplifying constant integer cast $3332
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Simplifying constant integer cast $3534
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Simplifying constant integer cast $3736
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Simplifying constant pointer cast (byte*) 1024
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Simplifying constant integer cast 0
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Successful SSA optimization PassNCastSimplification
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Finalized unsigned number type (byte) 0
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Simple Condition (bool~) main::$3 [15] if((byte) main::i#1!=rangelast(0,3)) goto main::@1
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Successful SSA optimization Pass2ConditionalJumpSimplification
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Constant (const byte) main::idx#0 = 0
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Constant (const byte) 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(0,3)) goto main::@1 to (number) 4
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Converting *(pointer+n) to pointer[n] [5] (word) main::w#0 ← *((word*~) main::$0) -- *(main::words + main::$4)
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Successful SSA optimization Pass2InlineDerefIdx
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Eliminating unused variable (word*~) main::$0 and assignment [2] (word*~) main::$0 ← (const word*) main::words + (byte~) main::$4
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Successful SSA optimization PassNEliminateUnusedVars
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Adding number conversion cast (unumber) 4 in if((byte) main::i#1!=(number) 4) goto main::@1
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Successful SSA optimization PassNAddNumberTypeConversions
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Simplifying constant integer cast 4
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Successful SSA optimization PassNCastSimplification
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Finalized unsigned number type (byte) 4
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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Rewriting multiplication to use shift [1] (byte~) main::$4 ← (byte) main::i#2 * (const byte) SIZEOF_WORD
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Successful SSA optimization Pass2MultiplyToShiftRewriting
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Inlining constant with var siblings (const byte) main::idx#0
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Inlining constant with var siblings (const byte) main::i#0
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Constant inlined main::i#0 = (byte) 0
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Constant inlined main::idx#0 = (byte) 0
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Successful SSA optimization Pass2ConstantInlining
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Eliminating unused constant (const byte) SIZEOF_WORD
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Successful SSA optimization PassNEliminateUnusedVars
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Added new block during phi lifting main::@3(between main::@1 and main::@1)
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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 [19] main::i#3 ← main::i#1
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Coalesced [20] main::idx#5 ← main::idx#3
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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::@3
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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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(void()) main()
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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::@1
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[5] (byte) main::idx#4 ← phi( main/(byte) 0 main::@1/(byte) main::idx#3 )
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[5] (byte) main::i#2 ← phi( main/(byte) 0 main::@1/(byte) main::i#1 )
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[6] (byte~) main::$4 ← (byte) main::i#2 << (byte) 1
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[7] (word) main::w#0 ← *((const word*) main::words + (byte~) main::$4)
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[8] (byte~) main::$1 ← < (word) main::w#0
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[9] *((const byte*) main::SCREEN + (byte) main::idx#4) ← (byte~) main::$1
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[10] (byte) main::idx#1 ← ++ (byte) main::idx#4
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[11] (byte~) main::$2 ← > (word) main::w#0
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[12] *((const byte*) main::SCREEN + (byte) main::idx#1) ← (byte~) main::$2
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[13] (byte) main::idx#2 ← ++ (byte) main::idx#1
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[14] (byte) main::idx#3 ← ++ (byte) main::idx#2
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[15] (byte) main::i#1 ← ++ (byte) main::i#2
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[16] if((byte) main::i#1!=(byte) 4) 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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[17] 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::$1 22.0
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(byte~) main::$2 22.0
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(byte~) main::$4 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 3.3000000000000003
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(byte) main::idx
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(byte) main::idx#1 11.0
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(byte) main::idx#2 22.0
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(byte) main::idx#3 7.333333333333333
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(byte) main::idx#4 6.6000000000000005
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(word) main::w
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(word) main::w#0 8.25
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Initial phi equivalence classes
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[ main::i#2 main::i#1 ]
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[ main::idx#4 main::idx#3 ]
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Added variable main::$4 to zero page equivalence class [ main::$4 ]
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Added variable main::w#0 to zero page equivalence class [ main::w#0 ]
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Added variable main::$1 to zero page equivalence class [ main::$1 ]
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Added variable main::idx#1 to zero page equivalence class [ main::idx#1 ]
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Added variable main::$2 to zero page equivalence class [ main::$2 ]
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Added variable main::idx#2 to zero page equivalence class [ main::idx#2 ]
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Complete equivalence classes
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[ main::i#2 main::i#1 ]
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[ main::idx#4 main::idx#3 ]
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[ main::$4 ]
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[ main::w#0 ]
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[ main::$1 ]
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[ main::idx#1 ]
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[ main::$2 ]
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[ main::idx#2 ]
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Allocated zp[1]:2 [ main::i#2 main::i#1 ]
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Allocated zp[1]:3 [ main::idx#4 main::idx#3 ]
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Allocated zp[1]:4 [ main::$4 ]
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Allocated zp[2]:5 [ main::w#0 ]
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Allocated zp[1]:7 [ main::$1 ]
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Allocated zp[1]:8 [ main::idx#1 ]
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Allocated zp[1]:9 [ main::$2 ]
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Allocated zp[1]:10 [ main::idx#2 ]
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INITIAL ASM
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Target platform is c64basic / MOS6502X
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// File Comments
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// Tests simple word pointer math
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// Upstart
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.pc = $801 "Basic"
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:BasicUpstart(__bbegin)
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.pc = $80d "Program"
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// Global Constants & labels
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// @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 SCREEN = $400
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.label __1 = 7
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.label __2 = 9
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.label __4 = 4
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.label w = 5
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.label idx = 8
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.label idx_1 = $a
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.label idx_2 = 3
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.label i = 2
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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::idx#4 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1
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lda #0
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sta.z idx_2
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// [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#1] -- vbuz1=vbuc1
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lda #0
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sta.z i
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jmp __b1
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// [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
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__b1_from___b1:
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// [5] phi (byte) main::idx#4 = (byte) main::idx#3 [phi:main::@1->main::@1#0] -- register_copy
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// [5] phi (byte) main::i#2 = (byte) 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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// [6] (byte~) main::$4 ← (byte) main::i#2 << (byte) 1 -- vbuz1=vbuz2_rol_1
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lda.z i
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asl
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sta.z __4
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// [7] (word) main::w#0 ← *((const word*) main::words + (byte~) main::$4) -- vwuz1=pwuc1_derefidx_vbuz2
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ldy.z __4
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lda words,y
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sta.z w
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lda words+1,y
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sta.z w+1
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// [8] (byte~) main::$1 ← < (word) main::w#0 -- vbuz1=_lo_vwuz2
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lda.z w
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sta.z __1
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// [9] *((const byte*) main::SCREEN + (byte) main::idx#4) ← (byte~) main::$1 -- pbuc1_derefidx_vbuz1=vbuz2
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lda.z __1
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ldy.z idx_2
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sta SCREEN,y
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// [10] (byte) main::idx#1 ← ++ (byte) main::idx#4 -- vbuz1=_inc_vbuz2
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ldy.z idx_2
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iny
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sty.z idx
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// [11] (byte~) main::$2 ← > (word) main::w#0 -- vbuz1=_hi_vwuz2
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lda.z w+1
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sta.z __2
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// [12] *((const byte*) main::SCREEN + (byte) main::idx#1) ← (byte~) main::$2 -- pbuc1_derefidx_vbuz1=vbuz2
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lda.z __2
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ldy.z idx
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sta SCREEN,y
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// [13] (byte) main::idx#2 ← ++ (byte) main::idx#1 -- vbuz1=_inc_vbuz2
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ldy.z idx
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iny
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sty.z idx_1
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// [14] (byte) main::idx#3 ← ++ (byte) main::idx#2 -- vbuz1=_inc_vbuz2
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ldy.z idx_1
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iny
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sty.z idx_2
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// [15] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuz1=_inc_vbuz1
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inc.z i
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// [16] if((byte) main::i#1!=(byte) 4) goto main::@1 -- vbuz1_neq_vbuc1_then_la1
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lda #4
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cmp.z i
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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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// [17] return
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rts
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// Clever word array that represents C64 numbers 0-7
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words: .word $3130, $3332, $3534, $3736
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}
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// File Data
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REGISTER UPLIFT POTENTIAL REGISTERS
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Statement [6] (byte~) main::$4 ← (byte) main::i#2 << (byte) 1 [ main::i#2 main::idx#4 main::$4 ] ( main:2 [ main::i#2 main::idx#4 main::$4 ] ) 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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Removing always clobbered register reg byte a as potential for zp[1]:3 [ main::idx#4 main::idx#3 ]
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Statement [7] (word) main::w#0 ← *((const word*) main::words + (byte~) main::$4) [ main::i#2 main::idx#4 main::w#0 ] ( main:2 [ main::i#2 main::idx#4 main::w#0 ] ) always clobbers reg byte a
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Statement [8] (byte~) main::$1 ← < (word) main::w#0 [ main::i#2 main::idx#4 main::w#0 main::$1 ] ( main:2 [ main::i#2 main::idx#4 main::w#0 main::$1 ] ) always clobbers reg byte a
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Statement [11] (byte~) main::$2 ← > (word) main::w#0 [ main::i#2 main::idx#1 main::$2 ] ( main:2 [ main::i#2 main::idx#1 main::$2 ] ) always clobbers reg byte a
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Removing always clobbered register reg byte a as potential for zp[1]:8 [ main::idx#1 ]
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Statement [6] (byte~) main::$4 ← (byte) main::i#2 << (byte) 1 [ main::i#2 main::idx#4 main::$4 ] ( main:2 [ main::i#2 main::idx#4 main::$4 ] ) always clobbers reg byte a
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Statement [7] (word) main::w#0 ← *((const word*) main::words + (byte~) main::$4) [ main::i#2 main::idx#4 main::w#0 ] ( main:2 [ main::i#2 main::idx#4 main::w#0 ] ) always clobbers reg byte a
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Statement [8] (byte~) main::$1 ← < (word) main::w#0 [ main::i#2 main::idx#4 main::w#0 main::$1 ] ( main:2 [ main::i#2 main::idx#4 main::w#0 main::$1 ] ) always clobbers reg byte a
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Statement [11] (byte~) main::$2 ← > (word) main::w#0 [ main::i#2 main::idx#1 main::$2 ] ( main:2 [ main::i#2 main::idx#1 main::$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 , reg byte y ,
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Potential registers zp[1]:3 [ main::idx#4 main::idx#3 ] : zp[1]:3 , reg byte x , reg byte y ,
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Potential registers zp[1]:4 [ main::$4 ] : zp[1]:4 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp[2]:5 [ main::w#0 ] : zp[2]:5 ,
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Potential registers zp[1]:7 [ main::$1 ] : zp[1]:7 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp[1]:8 [ main::idx#1 ] : zp[1]:8 , reg byte x , reg byte y ,
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Potential registers zp[1]:9 [ main::$2 ] : zp[1]:9 , reg byte a , reg byte x , reg byte y ,
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Potential registers zp[1]:10 [ main::idx#2 ] : 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]:4 [ main::$4 ] 22: zp[1]:7 [ main::$1 ] 22: zp[1]:9 [ main::$2 ] 22: zp[1]:10 [ main::idx#2 ] 19.8: zp[1]:2 [ main::i#2 main::i#1 ] 13.93: zp[1]:3 [ main::idx#4 main::idx#3 ] 11: zp[1]:8 [ main::idx#1 ] 8.25: zp[2]:5 [ main::w#0 ]
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Uplift Scope []
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Uplifting [main] best 993 combination reg byte a [ main::$4 ] reg byte a [ main::$1 ] reg byte a [ main::$2 ] reg byte a [ main::idx#2 ] zp[1]:2 [ main::i#2 main::i#1 ] zp[1]:3 [ main::idx#4 main::idx#3 ] zp[1]:8 [ main::idx#1 ] zp[2]:5 [ main::w#0 ]
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Limited combination testing to 100 combinations of 6912 possible.
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Uplifting [] best 993 combination
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Attempting to uplift remaining variables inzp[1]:2 [ main::i#2 main::i#1 ]
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Uplifting [main] best 893 combination reg byte x [ main::i#2 main::i#1 ]
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Attempting to uplift remaining variables inzp[1]:3 [ main::idx#4 main::idx#3 ]
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Uplifting [main] best 893 combination zp[1]:3 [ main::idx#4 main::idx#3 ]
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Attempting to uplift remaining variables inzp[1]:8 [ main::idx#1 ]
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Uplifting [main] best 803 combination reg byte y [ main::idx#1 ]
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Allocated (was zp[1]:3) zp[1]:2 [ main::idx#4 main::idx#3 ]
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Allocated (was zp[2]:5) zp[2]:3 [ main::w#0 ]
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ASSEMBLER BEFORE OPTIMIZATION
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// File Comments
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// Tests simple word pointer math
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// Upstart
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.pc = $801 "Basic"
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:BasicUpstart(__bbegin)
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.pc = $80d "Program"
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// Global Constants & labels
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// @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:
|
|
// [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 SCREEN = $400
|
|
.label w = 3
|
|
.label idx = 2
|
|
// [5] phi from main to main::@1 [phi:main->main::@1]
|
|
__b1_from_main:
|
|
// [5] phi (byte) main::idx#4 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1
|
|
lda #0
|
|
sta.z idx
|
|
// [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#1] -- vbuxx=vbuc1
|
|
ldx #0
|
|
jmp __b1
|
|
// [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
|
|
__b1_from___b1:
|
|
// [5] phi (byte) main::idx#4 = (byte) main::idx#3 [phi:main::@1->main::@1#0] -- register_copy
|
|
// [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@1->main::@1#1] -- register_copy
|
|
jmp __b1
|
|
// main::@1
|
|
__b1:
|
|
// [6] (byte~) main::$4 ← (byte) main::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1
|
|
txa
|
|
asl
|
|
// [7] (word) main::w#0 ← *((const word*) main::words + (byte~) main::$4) -- vwuz1=pwuc1_derefidx_vbuaa
|
|
tay
|
|
lda words,y
|
|
sta.z w
|
|
lda words+1,y
|
|
sta.z w+1
|
|
// [8] (byte~) main::$1 ← < (word) main::w#0 -- vbuaa=_lo_vwuz1
|
|
lda.z w
|
|
// [9] *((const byte*) main::SCREEN + (byte) main::idx#4) ← (byte~) main::$1 -- pbuc1_derefidx_vbuz1=vbuaa
|
|
ldy.z idx
|
|
sta SCREEN,y
|
|
// [10] (byte) main::idx#1 ← ++ (byte) main::idx#4 -- vbuyy=_inc_vbuz1
|
|
ldy.z idx
|
|
iny
|
|
// [11] (byte~) main::$2 ← > (word) main::w#0 -- vbuaa=_hi_vwuz1
|
|
lda.z w+1
|
|
// [12] *((const byte*) main::SCREEN + (byte) main::idx#1) ← (byte~) main::$2 -- pbuc1_derefidx_vbuyy=vbuaa
|
|
sta SCREEN,y
|
|
// [13] (byte) main::idx#2 ← ++ (byte) main::idx#1 -- vbuaa=_inc_vbuyy
|
|
iny
|
|
tya
|
|
// [14] (byte) main::idx#3 ← ++ (byte) main::idx#2 -- vbuz1=_inc_vbuaa
|
|
clc
|
|
adc #1
|
|
sta.z idx
|
|
// [15] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx
|
|
inx
|
|
// [16] if((byte) main::i#1!=(byte) 4) goto main::@1 -- vbuxx_neq_vbuc1_then_la1
|
|
cpx #4
|
|
bne __b1_from___b1
|
|
jmp __breturn
|
|
// main::@return
|
|
__breturn:
|
|
// [17] return
|
|
rts
|
|
// Clever word array that represents C64 numbers 0-7
|
|
words: .word $3130, $3332, $3534, $3736
|
|
}
|
|
// File Data
|
|
|
|
ASSEMBLER OPTIMIZATIONS
|
|
Removing instruction jmp __b1
|
|
Removing instruction jmp __bend
|
|
Removing instruction jmp __b1
|
|
Removing instruction jmp __breturn
|
|
Succesful ASM optimization Pass5NextJumpElimination
|
|
Replacing instruction ldx #0 with TAX
|
|
Removing instruction ldy.z idx
|
|
Succesful ASM optimization Pass5UnnecesaryLoadElimination
|
|
Replacing label __bbegin with __b1
|
|
Replacing label __b1_from___b1 with __b1
|
|
Removing instruction __bbegin:
|
|
Removing instruction __b1_from___bbegin:
|
|
Removing instruction main_from___b1:
|
|
Removing instruction __bend_from___b1:
|
|
Removing instruction __b1_from___b1:
|
|
Succesful ASM optimization Pass5RedundantLabelElimination
|
|
Removing instruction __bend:
|
|
Removing instruction __b1_from_main:
|
|
Removing instruction __breturn:
|
|
Succesful ASM optimization Pass5UnusedLabelElimination
|
|
Updating BasicUpstart to call main directly
|
|
Removing instruction jsr main
|
|
Succesful ASM optimization Pass5SkipBegin
|
|
Removing instruction jmp __b1
|
|
Succesful ASM optimization Pass5NextJumpElimination
|
|
Removing instruction __b1:
|
|
Succesful ASM optimization Pass5UnusedLabelElimination
|
|
|
|
FINAL SYMBOL TABLE
|
|
(label) @1
|
|
(label) @begin
|
|
(label) @end
|
|
(void()) main()
|
|
(byte~) main::$1 reg byte a 22.0
|
|
(byte~) main::$2 reg byte a 22.0
|
|
(byte~) main::$4 reg byte a 22.0
|
|
(label) main::@1
|
|
(label) main::@return
|
|
(const byte*) main::SCREEN = (byte*) 1024
|
|
(byte) main::i
|
|
(byte) main::i#1 reg byte x 16.5
|
|
(byte) main::i#2 reg byte x 3.3000000000000003
|
|
(byte) main::idx
|
|
(byte) main::idx#1 reg byte y 11.0
|
|
(byte) main::idx#2 reg byte a 22.0
|
|
(byte) main::idx#3 idx zp[1]:2 7.333333333333333
|
|
(byte) main::idx#4 idx zp[1]:2 6.6000000000000005
|
|
(word) main::w
|
|
(word) main::w#0 w zp[2]:3 8.25
|
|
(const word*) main::words = { (word) $3130, (word) $3332, (word) $3534, (word) $3736 }
|
|
|
|
reg byte x [ main::i#2 main::i#1 ]
|
|
zp[1]:2 [ main::idx#4 main::idx#3 ]
|
|
reg byte a [ main::$4 ]
|
|
zp[2]:3 [ main::w#0 ]
|
|
reg byte a [ main::$1 ]
|
|
reg byte y [ main::idx#1 ]
|
|
reg byte a [ main::$2 ]
|
|
reg byte a [ main::idx#2 ]
|
|
|
|
|
|
FINAL ASSEMBLER
|
|
Score: 671
|
|
|
|
// File Comments
|
|
// Tests simple word pointer math
|
|
// Upstart
|
|
.pc = $801 "Basic"
|
|
:BasicUpstart(main)
|
|
.pc = $80d "Program"
|
|
// Global Constants & labels
|
|
// @begin
|
|
// [1] phi from @begin to @1 [phi:@begin->@1]
|
|
// @1
|
|
// [2] call main
|
|
// [4] phi from @1 to main [phi:@1->main]
|
|
// [3] phi from @1 to @end [phi:@1->@end]
|
|
// @end
|
|
// main
|
|
main: {
|
|
.label SCREEN = $400
|
|
.label w = 3
|
|
.label idx = 2
|
|
// [5] phi from main to main::@1 [phi:main->main::@1]
|
|
// [5] phi (byte) main::idx#4 = (byte) 0 [phi:main->main::@1#0] -- vbuz1=vbuc1
|
|
lda #0
|
|
sta.z idx
|
|
// [5] phi (byte) main::i#2 = (byte) 0 [phi:main->main::@1#1] -- vbuxx=vbuc1
|
|
tax
|
|
// [5] phi from main::@1 to main::@1 [phi:main::@1->main::@1]
|
|
// [5] phi (byte) main::idx#4 = (byte) main::idx#3 [phi:main::@1->main::@1#0] -- register_copy
|
|
// [5] phi (byte) main::i#2 = (byte) main::i#1 [phi:main::@1->main::@1#1] -- register_copy
|
|
// main::@1
|
|
__b1:
|
|
// words+i
|
|
// [6] (byte~) main::$4 ← (byte) main::i#2 << (byte) 1 -- vbuaa=vbuxx_rol_1
|
|
txa
|
|
asl
|
|
// w = *(words+i)
|
|
// [7] (word) main::w#0 ← *((const word*) main::words + (byte~) main::$4) -- vwuz1=pwuc1_derefidx_vbuaa
|
|
tay
|
|
lda words,y
|
|
sta.z w
|
|
lda words+1,y
|
|
sta.z w+1
|
|
// <w
|
|
// [8] (byte~) main::$1 ← < (word) main::w#0 -- vbuaa=_lo_vwuz1
|
|
lda.z w
|
|
// SCREEN[idx++] = <w
|
|
// [9] *((const byte*) main::SCREEN + (byte) main::idx#4) ← (byte~) main::$1 -- pbuc1_derefidx_vbuz1=vbuaa
|
|
ldy.z idx
|
|
sta SCREEN,y
|
|
// SCREEN[idx++] = <w;
|
|
// [10] (byte) main::idx#1 ← ++ (byte) main::idx#4 -- vbuyy=_inc_vbuz1
|
|
iny
|
|
// >w
|
|
// [11] (byte~) main::$2 ← > (word) main::w#0 -- vbuaa=_hi_vwuz1
|
|
lda.z w+1
|
|
// SCREEN[idx++] = >w
|
|
// [12] *((const byte*) main::SCREEN + (byte) main::idx#1) ← (byte~) main::$2 -- pbuc1_derefidx_vbuyy=vbuaa
|
|
sta SCREEN,y
|
|
// SCREEN[idx++] = >w;
|
|
// [13] (byte) main::idx#2 ← ++ (byte) main::idx#1 -- vbuaa=_inc_vbuyy
|
|
iny
|
|
tya
|
|
// idx++;
|
|
// [14] (byte) main::idx#3 ← ++ (byte) main::idx#2 -- vbuz1=_inc_vbuaa
|
|
clc
|
|
adc #1
|
|
sta.z idx
|
|
// for( byte i: 0..3)
|
|
// [15] (byte) main::i#1 ← ++ (byte) main::i#2 -- vbuxx=_inc_vbuxx
|
|
inx
|
|
// [16] if((byte) main::i#1!=(byte) 4) goto main::@1 -- vbuxx_neq_vbuc1_then_la1
|
|
cpx #4
|
|
bne __b1
|
|
// main::@return
|
|
// }
|
|
// [17] return
|
|
rts
|
|
// Clever word array that represents C64 numbers 0-7
|
|
words: .word $3130, $3332, $3534, $3736
|
|
}
|
|
// File Data
|
|
|