AppleWin/source/Debugger_DisassemblerData.cpp

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2009-10-26 01:17:25 +00:00
/*
AppleWin : An Apple //e emulator for Windows
/* Description: Data Blocks shown in Disassembler
*
* Author: Copyright (C) 2009 Michael Pohoreski
*/
#include "StdAfx.h"
#pragma hdrstop
// Disassembler Data ______________________________________________________________________________
// __ Debugger Interaface ____________________________________________________________________________
//===========================================================================
WORD _CmdDefineByteRange(int nArgs,int iArg,DisasmData_t & tData_)
{
WORD nAddress = 0;
WORD nAddress2 = 0;
WORD nEnd = 0;
int nLen = 0;
if( nArgs < 2 )
{
nAddress = g_nDisasmCurAddress;
}
else
{
RangeType_t eRange = Range_Get( nAddress, nAddress2, iArg);
if ((eRange == RANGE_HAS_END) ||
(eRange == RANGE_HAS_LEN))
{
Range_CalcEndLen( eRange, nAddress, nAddress2, nEnd, nLen );
//dArg = 2;
}
else
{
nAddress = g_aArgs[ 2 ].nValue;
}
}
if (!nLen)
{
nLen = 1;
}
tData_.nStartAddress = nAddress;
tData_.nEndAddress = nAddress + nLen;
char *pSymbolName = "";
if( nArgs )
{
pSymbolName = g_aArgs[ 1 ].sArg;
SymbolTable_Index_e eSymbolTable = SYMBOLS_ASSEMBLY;
// bRemoveSymbol = false // use arg[2]
// bUpdateSymbol = true // add the symbol to the table
SymbolUpdate( eSymbolTable, pSymbolName, nAddress, false, true );
// Note: need to call ConsoleUpdate(), as may print symbol has been updated
}
else
{
// TODO: 'DB' with no args, should define D_# DB $XX
}
strcpy( tData_.sSymbol, pSymbolName );
return nAddress;
}
// Undefine Data
//===========================================================================
Update_t CmdDisasmDataDefCode (int nArgs)
{
// treat memory (bytes) as code
if (! ((nArgs <= 2) || (nArgs == 4)))
{
return Help_Arg_1( CMD_DISASM_CODE );
}
DisasmData_t tData;
int iArg = 2;
WORD nAddress = _CmdDefineByteRange( nArgs, iArg, tData );
// Need to iterate through all blocks
// DB TEST1 300:320
// DB TEST2 310:330
// DB TEST3 320:340
// !DB 300
DisasmData_t *pData = Disassembly_IsDataAddress( nAddress );
if( pData )
{
// Need to split the data
// *pData = tData;
Disassembly_AddData( tData );
}
else
{
Disassembly_DelData( tData );
}
return UPDATE_DISASM | ConsoleUpdate();
}
// List the data blocks
//===========================================================================
Update_t CmdDisasmDataList (int nArgs)
{
// Need to iterate through all blocks
DisasmData_t* pData = NULL;
char sText[ CONSOLE_WIDTH ];
while( pData = Disassembly_Enumerate( pData ) )
{
// `TEST `300`:`320
sprintf( sText, "%s%s %s%04X%s:%s%04X\n"
, CHC_SYMBOL
, pData->sSymbol
, CHC_ADDRESS
, pData->nStartAddress
, CHC_ARG_SEP
, pData->nEndAddress
);
ConsolePrint( sText );
}
return UPDATE_DISASM | ConsoleUpdate();
}
// Common code
//===========================================================================
Update_t _CmdDisasmDataDefByteX (int nArgs)
{
// DB
// DB symbol
// DB symbol address
// symbol range:range
int iCmd = NOP_BYTE_1 - g_aArgs[0].nValue;
if (! ((nArgs <= 2) || (nArgs == 4)))
{
return Help_Arg_1( CMD_DEFINE_DATA_BYTE1 + iCmd );
}
DisasmData_t tData;
int iArg = 2;
WORD nAddress = _CmdDefineByteRange( nArgs, iArg, tData );
tData.iDirective = FIRST_M_DIRECTIVE + ASM_M_DEFINE_BYTE;
tData.eElementType = NOP_BYTE_1 + iCmd;
tData.bSymbolLookup = false;
tData.nTargetAddress = 0;
// Already exists, so update
DisasmData_t *pData = Disassembly_IsDataAddress( nAddress );
if( pData )
{
*pData = tData;
}
else
Disassembly_AddData( tData );
return UPDATE_DISASM | ConsoleUpdate();
}
//===========================================================================
Update_t _CmdDisasmDataDefWordX (int nArgs)
{
// DW
// DW symbol
// DW symbol address
// symbol range:range
int iCmd = NOP_WORD_1 - g_aArgs[0].nValue;
if (! ((nArgs <= 2) || (nArgs == 4)))
{
return Help_Arg_1( CMD_DEFINE_DATA_WORD1 + iCmd );
}
DisasmData_t tData;
int iArg = 2;
WORD nAddress = _CmdDefineByteRange( nArgs, iArg, tData );
tData.iDirective = FIRST_M_DIRECTIVE + ASM_M_DEFINE_WORD;
tData.eElementType = NOP_WORD_1 + iCmd;
tData.bSymbolLookup = false;
tData.nTargetAddress = 0;
// Already exists, so update
DisasmData_t *pData = Disassembly_IsDataAddress( nAddress );
if( pData )
{
*pData = tData;
}
else
Disassembly_AddData( tData );
return UPDATE_DISASM | ConsoleUpdate();
}
//===========================================================================
Update_t CmdDisasmDataDefAddress8H (int nArgs)
{
return UPDATE_DISASM;
}
//===========================================================================
Update_t CmdDisasmDataDefAddress8L (int nArgs)
{
return UPDATE_DISASM;
}
//===========================================================================
Update_t CmdDisasmDataDefAddress16 (int nArgs)
{
return UPDATE_DISASM;
}
Update_t CmdDisasmDataDefByte1 ( int nArgs )
{
g_aArgs[0].nValue = NOP_BYTE_1;
return _CmdDisasmDataDefByteX( nArgs );
}
Update_t CmdDisasmDataDefByte2 ( int nArgs )
{
g_aArgs[0].nValue = NOP_BYTE_2;
return _CmdDisasmDataDefByteX( nArgs );
}
Update_t CmdDisasmDataDefByte4 ( int nArgs )
{
g_aArgs[0].nValue = NOP_BYTE_4;
return _CmdDisasmDataDefByteX( nArgs );
}
Update_t CmdDisasmDataDefByte8 ( int nArgs )
{
g_aArgs[0].nValue = NOP_BYTE_8;
return _CmdDisasmDataDefByteX( nArgs );
}
Update_t CmdDisasmDataDefWord1 ( int nArgs )
{
g_aArgs[0].nValue = NOP_WORD_1;
return _CmdDisasmDataDefWordX( nArgs );
}
Update_t CmdDisasmDataDefWord2 ( int nArgs )
{
g_aArgs[0].nValue = NOP_WORD_2;
return _CmdDisasmDataDefWordX( nArgs );
}
Update_t CmdDisasmDataDefWord4 ( int nArgs )
{
g_aArgs[0].nValue = NOP_WORD_4;
return _CmdDisasmDataDefWordX( nArgs );
}
Update_t CmdDisasmDataDefString ( int nArgs )
{
return UPDATE_DISASM;
}
// __ Disassembler View Interface ____________________________________________________________________
/// @param pCurrent NULL start a new serch, or continue enumerating
//===========================================================================
DisasmData_t* Disassembly_Enumerate( DisasmData_t *pCurrent )
{
DisasmData_t *pData = NULL; // bIsNopcode = false
int nDataTargets = g_aDisassemblerData.size();
if( pCurrent )
{
pCurrent++;
pData = & g_aDisassemblerData[ nDataTargets ];
if( pCurrent < pData )
return pCurrent;
else
return NULL;
}
else
{
pData = & g_aDisassemblerData[ 0 ];
if( nDataTargets )
return pData;
else
return NULL;
}
}
// returns NULL if address has no data associated with it
//===========================================================================
DisasmData_t* Disassembly_IsDataAddress ( WORD nAddress )
{
DisasmData_t *pData = NULL; // bIsNopcode = false
int nDataTargets = g_aDisassemblerData.size();
if( nDataTargets )
{
// TODO: Replace with binary search -- should store data in sorted order, via start address
pData = & g_aDisassemblerData[ 0 ];
for( int iTarget = 0; iTarget < nDataTargets; iTarget++ )
{
if( (nAddress >= pData->nStartAddress) && (nAddress < pData->nEndAddress) )
{
return pData;
}
pData++;
}
pData = NULL; // bIsNopCode = false
}
return pData;
}
//===========================================================================
void Disassembly_AddData( DisasmData_t tData)
{
g_aDisassemblerData.push_back( tData );
}
//===========================================================================
void Disassembly_GetData ( WORD nBaseAddress, const DisasmData_t *pData, DisasmLine_t & line_ )
{
line_.ClearFlags();
line_.iNoptype = pData->eElementType;
switch( pData->eElementType )
{
case NOP_BYTE_1:
line_.nOpbyte = 1;
break;
case NOP_BYTE_2:
line_.nOpbyte = 2;
break;
case NOP_WORD_1:
line_.nOpbyte= 2;
break;
case NOP_WORD_2:
line_.nOpbyte= 4;
break;
case NOP_STRING_APPLESOFT:
// scan memory for high byte
line_.nOpbyte = 8;
break;
default:
line_.nOpbyte = 1;
break;
}
FormatOpcodeBytes( nBaseAddress, line_ );
//pMnemonic = g_aOpcodes[ iOpcode ].sMnemonic;
line_.iNopcode = pData->iDirective;
strcpy( line_.sMnemonic, g_aAssemblerDirectives[ line_.iNopcode ].m_pMnemonic );
FormatNopcodeBytes( nBaseAddress, line_ );
}
//===========================================================================
void Disassembly_DelData( DisasmData_t tData)
{
// g_aDisassemblerData.erase( );
}