AppleWin/docs/disasm_target.txt
2014-05-23 22:59:02 +01:00

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