2020-01-01 23:31:29 +00:00
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Adding struct value member variable copy *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_X) ← (byte) 0
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Adding struct value member variable copy *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 0
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2019-12-28 21:33:52 +00:00
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Adding struct value member variable copy *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_X) ← *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_X)
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Adding struct value member variable copy *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y) ← *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y)
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Replacing struct member reference (struct Point) main::point1.x with member unwinding reference *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_X)
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Replacing struct member reference (struct Point) main::point1.y with member unwinding reference *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y)
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Replacing struct member reference (struct Point) main::point2.x with member unwinding reference *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_X)
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Replacing struct member reference (struct Point) main::point2.y with member unwinding reference *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y)
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2019-12-27 21:35:05 +00:00
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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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2019-12-28 21:33:52 +00:00
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*((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_X) ← (byte) 0
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*((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 0
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(struct Point) main::point1 ← struct-unwound {*((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_X), *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y)}
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*((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_X) ← (number) 2
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*((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) ← (number) 3
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*((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_X) ← *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_X)
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*((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y) ← *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y)
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(struct Point) main::point2 ← struct-unwound {*((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_X), *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y)}
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*((const byte*) SCREEN + (number) 0) ← *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_X)
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*((const byte*) SCREEN + (number) 1) ← *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y)
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2019-12-27 21:35:05 +00:00
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to:main::@return
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main::@return: scope:[main] from main
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return
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to:@return
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@1: scope:[] from @begin
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call main
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to:@2
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@2: scope:[] from @1
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to:@end
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@end: scope:[] from @2
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SYMBOL TABLE SSA
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(label) @1
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(label) @2
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(label) @begin
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(label) @end
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(const byte) OFFSET_STRUCT_POINT_X = (byte) 0
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(const byte) OFFSET_STRUCT_POINT_Y = (byte) 1
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(byte) Point::x
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(byte) Point::y
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(const byte*) SCREEN = (byte*)(number) $400
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(void()) main()
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(label) main::@return
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(struct Point) main::point1 loadstore
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(struct Point) main::point2 loadstore
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2019-12-28 21:33:52 +00:00
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Adding number conversion cast (unumber) 2 in *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_X) ← (number) 2
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Adding number conversion cast (unumber) 3 in *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) ← (number) 3
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Adding number conversion cast (unumber) 0 in *((const byte*) SCREEN + (number) 0) ← *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_X)
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Adding number conversion cast (unumber) 1 in *((const byte*) SCREEN + (number) 1) ← *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y)
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2019-12-27 21:35:05 +00:00
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Successful SSA optimization PassNAddNumberTypeConversions
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2019-12-28 21:33:52 +00:00
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Inlining cast *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_X) ← (unumber)(number) 2
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Inlining cast *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) ← (unumber)(number) 3
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2019-12-27 21:35:05 +00:00
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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 2
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Simplifying constant integer cast 3
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Simplifying constant integer cast 0
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Simplifying constant integer cast 1
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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) 0
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Finalized unsigned number type (byte) 1
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Successful SSA optimization PassNFinalizeNumberTypeConversions
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2019-12-28 21:33:52 +00:00
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Removing C-classic struct-unwound assignment [2] (struct Point) main::point1 ← struct-unwound {*((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_X), *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y)}
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Removing C-classic struct-unwound assignment [7] (struct Point) main::point2 ← struct-unwound {*((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_X), *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y)}
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Simplifying expression containing zero (byte*)&main::point1 in [0] *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_X) ← (byte) 0
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Simplifying expression containing zero (byte*)&main::point1 in [3] *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_X) ← (byte) 2
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Simplifying expression containing zero (byte*)&main::point1 in [5] *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_X) ← *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_X)
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Simplifying expression containing zero (byte*)&main::point2 in [5] *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_X) ← *((byte*)&(struct Point) main::point1)
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Simplifying expression containing zero (byte*)&main::point2 in [8] *((const byte*) SCREEN + (byte) 0) ← *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_X)
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Simplifying expression containing zero SCREEN in [8] *((const byte*) SCREEN + (byte) 0) ← *((byte*)&(struct Point) main::point2)
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2019-12-27 21:35:05 +00:00
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Successful SSA optimization PassNSimplifyExpressionWithZero
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Eliminating unused constant (const byte) OFFSET_STRUCT_POINT_X
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Successful SSA optimization PassNEliminateUnusedVars
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Consolidated array index constant in *(SCREEN+1)
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Successful SSA optimization Pass2ConstantAdditionElimination
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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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CALL GRAPH
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Calls in [] to main:2
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Created 0 initial phi equivalence classes
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Coalesced down to 0 phi equivalence classes
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Culled Empty Block (label) @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 @end
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FINAL CONTROL FLOW GRAPH
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@begin: scope:[] from
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[0] phi()
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to:@1
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@1: scope:[] from @begin
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[1] phi()
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[2] call main
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to:@end
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@end: scope:[] from @1
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[3] phi()
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(void()) main()
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main: scope:[main] from @1
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[4] *((byte*)&(struct Point) main::point1) ← (byte) 0
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[5] *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 0
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[6] *((byte*)&(struct Point) main::point1) ← (byte) 2
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[7] *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 3
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[8] *((byte*)&(struct Point) main::point2) ← *((byte*)&(struct Point) main::point1)
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[9] *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y) ← *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y)
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[10] *((const byte*) SCREEN) ← *((byte*)&(struct Point) main::point2)
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[11] *((const byte*) SCREEN+(byte) 1) ← *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y)
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to:main::@return
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main::@return: scope:[main] from main
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[12] return
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to:@return
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VARIABLE REGISTER WEIGHTS
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(byte) Point::x
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(byte) Point::y
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(void()) main()
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(struct Point) main::point1 loadstore
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(struct Point) main::point2 loadstore
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Initial phi equivalence classes
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Added variable main::point1 to live range equivalence class [ main::point1 ]
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Added variable main::point2 to live range equivalence class [ main::point2 ]
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Complete equivalence classes
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[ main::point1 ]
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[ main::point2 ]
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Allocated zp[2]:2 [ main::point1 ]
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Allocated zp[2]:4 [ main::point2 ]
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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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// Minimal struct with C-Standard behavior - copying
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// Upstart
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.pc = $801 "Basic"
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:BasicUpstart(__bbegin)
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.pc = $80d "Program"
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// Global Constants & labels
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.label SCREEN = $400
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.const OFFSET_STRUCT_POINT_Y = 1
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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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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 point1 = 2
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.label point2 = 4
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// [4] *((byte*)&(struct Point) main::point1) ← (byte) 0 -- _deref_pbuc1=vbuc2
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lda #0
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sta.z point1
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// [5] *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 0 -- _deref_pbuc1=vbuc2
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lda #0
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sta point1+OFFSET_STRUCT_POINT_Y
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// [6] *((byte*)&(struct Point) main::point1) ← (byte) 2 -- _deref_pbuc1=vbuc2
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lda #2
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sta.z point1
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// [7] *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 3 -- _deref_pbuc1=vbuc2
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lda #3
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sta point1+OFFSET_STRUCT_POINT_Y
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// [8] *((byte*)&(struct Point) main::point2) ← *((byte*)&(struct Point) main::point1) -- _deref_pbuc1=_deref_pbuc2
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lda.z point1
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sta.z point2
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// [9] *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y) ← *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
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lda point1+OFFSET_STRUCT_POINT_Y
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sta point2+OFFSET_STRUCT_POINT_Y
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// [10] *((const byte*) SCREEN) ← *((byte*)&(struct Point) main::point2) -- _deref_pbuc1=_deref_pbuc2
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lda.z point2
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sta SCREEN
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// [11] *((const byte*) SCREEN+(byte) 1) ← *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
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lda point2+OFFSET_STRUCT_POINT_Y
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sta SCREEN+1
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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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REGISTER UPLIFT POTENTIAL REGISTERS
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Statement [4] *((byte*)&(struct Point) main::point1) ← (byte) 0 [ main::point1 main::point2 ] ( main:2 [ main::point1 main::point2 ] ) always clobbers reg byte a
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Statement [5] *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 0 [ main::point1 main::point2 ] ( main:2 [ main::point1 main::point2 ] ) always clobbers reg byte a
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Statement [6] *((byte*)&(struct Point) main::point1) ← (byte) 2 [ main::point1 main::point2 ] ( main:2 [ main::point1 main::point2 ] ) always clobbers reg byte a
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Statement [7] *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 3 [ main::point1 main::point2 ] ( main:2 [ main::point1 main::point2 ] ) always clobbers reg byte a
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Statement [8] *((byte*)&(struct Point) main::point2) ← *((byte*)&(struct Point) main::point1) [ main::point1 main::point2 ] ( main:2 [ main::point1 main::point2 ] ) always clobbers reg byte a
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Statement [9] *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y) ← *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) [ main::point2 ] ( main:2 [ main::point2 ] ) always clobbers reg byte a
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Statement [10] *((const byte*) SCREEN) ← *((byte*)&(struct Point) main::point2) [ main::point2 ] ( main:2 [ main::point2 ] ) always clobbers reg byte a
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Statement [11] *((const byte*) SCREEN+(byte) 1) ← *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y) [ ] ( main:2 [ ] ) always clobbers reg byte a
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Potential registers zp[2]:2 [ main::point1 ] : zp[2]:2 ,
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Potential registers zp[2]:4 [ main::point2 ] : zp[2]:4 ,
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REGISTER UPLIFT SCOPES
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Uplift Scope [Point]
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Uplift Scope [main] 0: zp[2]:2 [ main::point1 ] 0: zp[2]:4 [ main::point2 ]
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Uplift Scope []
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Uplifting [Point] best 72 combination
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Uplifting [main] best 72 combination zp[2]:2 [ main::point1 ] zp[2]:4 [ main::point2 ]
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Uplifting [] best 72 combination
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ASSEMBLER BEFORE OPTIMIZATION
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// File Comments
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// Minimal struct with C-Standard behavior - copying
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// Upstart
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.pc = $801 "Basic"
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:BasicUpstart(__bbegin)
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.pc = $80d "Program"
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// Global Constants & labels
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.label SCREEN = $400
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.const OFFSET_STRUCT_POINT_Y = 1
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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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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 point1 = 2
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.label point2 = 4
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// [4] *((byte*)&(struct Point) main::point1) ← (byte) 0 -- _deref_pbuc1=vbuc2
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lda #0
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sta.z point1
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// [5] *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 0 -- _deref_pbuc1=vbuc2
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lda #0
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sta point1+OFFSET_STRUCT_POINT_Y
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// [6] *((byte*)&(struct Point) main::point1) ← (byte) 2 -- _deref_pbuc1=vbuc2
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lda #2
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sta.z point1
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// [7] *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 3 -- _deref_pbuc1=vbuc2
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lda #3
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sta point1+OFFSET_STRUCT_POINT_Y
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// [8] *((byte*)&(struct Point) main::point2) ← *((byte*)&(struct Point) main::point1) -- _deref_pbuc1=_deref_pbuc2
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lda.z point1
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sta.z point2
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// [9] *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y) ← *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
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lda point1+OFFSET_STRUCT_POINT_Y
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sta point2+OFFSET_STRUCT_POINT_Y
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// [10] *((const byte*) SCREEN) ← *((byte*)&(struct Point) main::point2) -- _deref_pbuc1=_deref_pbuc2
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lda.z point2
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sta SCREEN
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// [11] *((const byte*) SCREEN+(byte) 1) ← *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
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lda point2+OFFSET_STRUCT_POINT_Y
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sta SCREEN+1
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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 __bend
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Removing instruction jmp __breturn
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Succesful ASM optimization Pass5NextJumpElimination
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Removing instruction lda #0
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Succesful ASM optimization Pass5UnnecesaryLoadElimination
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Replacing label __bbegin with __b1
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Removing instruction __bbegin:
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Removing instruction __b1_from___bbegin:
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Removing instruction __bend_from___b1:
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Succesful ASM optimization Pass5RedundantLabelElimination
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Removing instruction __bend:
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Removing instruction __breturn:
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Succesful ASM optimization Pass5UnusedLabelElimination
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Updating BasicUpstart to call main directly
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Removing instruction jsr main
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Succesful ASM optimization Pass5SkipBegin
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Removing instruction __b1:
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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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(const byte) OFFSET_STRUCT_POINT_Y = (byte) 1
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(byte) Point::x
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(byte) Point::y
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(const byte*) SCREEN = (byte*) 1024
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(void()) main()
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(label) main::@return
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(struct Point) main::point1 loadstore zp[2]:2
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(struct Point) main::point2 loadstore zp[2]:4
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zp[2]:2 [ main::point1 ]
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zp[2]:4 [ main::point2 ]
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|
FINAL ASSEMBLER
|
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|
|
Score: 55
|
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|
|
// File Comments
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// Minimal struct with C-Standard behavior - copying
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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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|
|
.label SCREEN = $400
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|
|
.const OFFSET_STRUCT_POINT_Y = 1
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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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// [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 point1 = 2
|
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|
.label point2 = 4
|
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|
// point1
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|
|
// [4] *((byte*)&(struct Point) main::point1) ← (byte) 0 -- _deref_pbuc1=vbuc2
|
|
|
|
lda #0
|
|
|
|
sta.z point1
|
|
|
|
// [5] *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 0 -- _deref_pbuc1=vbuc2
|
|
|
|
sta point1+OFFSET_STRUCT_POINT_Y
|
|
|
|
// point1.x = 2
|
|
|
|
// [6] *((byte*)&(struct Point) main::point1) ← (byte) 2 -- _deref_pbuc1=vbuc2
|
|
|
|
lda #2
|
|
|
|
sta.z point1
|
|
|
|
// point1.y = 3
|
|
|
|
// [7] *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) ← (byte) 3 -- _deref_pbuc1=vbuc2
|
|
|
|
lda #3
|
|
|
|
sta point1+OFFSET_STRUCT_POINT_Y
|
|
|
|
// point2 = point1
|
|
|
|
// [8] *((byte*)&(struct Point) main::point2) ← *((byte*)&(struct Point) main::point1) -- _deref_pbuc1=_deref_pbuc2
|
|
|
|
lda.z point1
|
|
|
|
sta.z point2
|
|
|
|
// [9] *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y) ← *((byte*)&(struct Point) main::point1+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
|
|
|
|
lda point1+OFFSET_STRUCT_POINT_Y
|
|
|
|
sta point2+OFFSET_STRUCT_POINT_Y
|
|
|
|
// SCREEN[0] = point2.x
|
|
|
|
// [10] *((const byte*) SCREEN) ← *((byte*)&(struct Point) main::point2) -- _deref_pbuc1=_deref_pbuc2
|
|
|
|
lda.z point2
|
|
|
|
sta SCREEN
|
|
|
|
// SCREEN[1] = point2.y
|
|
|
|
// [11] *((const byte*) SCREEN+(byte) 1) ← *((byte*)&(struct Point) main::point2+(const byte) OFFSET_STRUCT_POINT_Y) -- _deref_pbuc1=_deref_pbuc2
|
|
|
|
lda point2+OFFSET_STRUCT_POINT_Y
|
|
|
|
sta SCREEN+1
|
|
|
|
// main::@return
|
|
|
|
// }
|
|
|
|
// [12] return
|
|
|
|
rts
|
|
|
|
}
|
|
|
|
// File Data
|
|
|
|
|