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https://github.com/AppleWin/AppleWin.git
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119 lines
3.0 KiB
Plaintext
119 lines
3.0 KiB
Plaintext
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AddressingMode_e
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AM_IMPLIED
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, AM_1 // Invalid 1 Byte
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, AM_2 // Invalid 2 Bytes
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, AM_3 // Invalid 3 Bytes
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, AM_M // 4 #Immediate
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, AM_A // 5 $Absolute
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, AM_Z // 6 Zeropage
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, AM_AX // 7 Absolute, X
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, AM_AY // 8 Absolute, Y
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, AM_ZX // 9 Zeropage, X
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, AM_ZY // 10 Zeropage, Y
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, AM_R // 11 Relative
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, AM_IZX // 12 Indexed (Zeropage Indirect, X)
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, AM_IAX // 13 Indexed (Absolute Indirect, X)
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, AM_NZY // 14 Indirect (Zeropage) Indexed, Y
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, AM_NZ // 15 Indirect (Zeropage)
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, AM_NA // 16 Indirect (Absolute) i.e. JMP
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0:34 12 00 00 AA 99
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D0:16 03
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1234:56 78 9A
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R X D0
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R Y 2
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// ( 4) AM_M || #Immediate
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300:A9 55 // LDA #$55
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// ( 5) AM_A || $Absolute
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302:4C 89 67 // JMP $6789
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305:AD 01 00 // LDA $0001 = 12
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// ( 6) AM_Z || Zeropage
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308:A5 00 // LDA $00 = #34
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// ( 7) AM_AX || Absolute, X
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30A:DE 00 00 // DEC $0000,X $D0=FF
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// ( 8) AM_AY || Absolute, Y
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30D:BE 02 00 // LDX $0002,Y
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// ( 9) AM_ZX || Zeropage, X
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310:B4 35 // LDY $30,X
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// (10) AM_ZY || Zeropage, Y
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312:B6 00 // LDX $00,Y $02=0
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// (11) AM_R || Relative
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314:D0 02
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// (12) AM_IZX || Indexed (Zeropage Indirect, X)
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316:A1 00 // LDA ($00,X)
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// (13) AM_IAX || Indexed (Absolute Indirect, X)
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318: 7C 00 00 // JMP ($0000,X)
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// (14) AM_NZY ||
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31B:B1 00 // LDA ($00),Y
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// (15) NZ ||
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31D:B2 00 // LDA ($00)
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// (16) AM_NA || Indirect (Absolute)
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31F:6C 02 00 // JMP ($0002) = ($0000) -> 1234
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Data Disasembly ...
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Test Case:
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U D001
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DW BAS D000:D0BF
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Debugger_Assembler.
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int _6502_GetOpmodeOpbyte ( const int iAddress, int & iOpmode_, int & nOpbyte_ )
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Debugger_Display.
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WORD DrawDisassemblyLine ( int iLine, const WORD nBaseAddress )
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int GetDisassemblyLine ( WORD nBaseAddress, DisasmLine_t & line_ )
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Debugger_DisassemblerData
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void Disassembly_GetData ( WORD nBaseAddress, const DisasmData_t *pData, DisasmLine_t & line_ )
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FormatOpcodeBytes( nBaseAddress, line_ );
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//pMnemonic = g_aOpcodes[ iOpcode ].sMnemonic;
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line_.iNopcode = pData->iDirective;
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strcpy( line_.sMnemonic, g_aAssemblerDirectives[ line_.iNopcode ].m_pMnemonic );
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FormatNopcodeBytes( nBaseAddress, line_ );
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bool _6502_GetTargets ( WORD nAddress, int *pTargetPartial_, int *pTargetPointer_, int * pTargetBytes_, bool bIgnoreJSRJMP, bool bIgnoreBranch )
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WORD DrawDisassemblyLine ( int iLine, const WORD nBaseAddress )
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// Instruction / Mnemonic
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linerect.left = (int) aTabs[ TS_INSTRUCTION ];
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if (! bCursorLine)
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DebuggerSetColorFG( DebuggerGetColor( iForeground ) );
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if( pData ) // Assembler Data Directive / Data Disassembler
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{
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// pMnemonic = g_aAssemblerDirectives[ line.iNopcode ].sMnemonic;
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if (! bCursorLine)
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DebuggerSetColorFG( DebuggerGetColor( FG_DISASM_DIRECTIVE ) ); // ZZZ TODO: FIXME:
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pMnemonic = line.sMnemonic;
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}
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else
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{
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pMnemonic = g_aOpcodes[ iOpcode ].sMnemonic;
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}
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