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AppleWin/source/Debugger/Debugger_DisassemblerData.cpp

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/*
AppleWin : An Apple //e emulator for Windows
Copyright (C) 2006-2014, Tom Charlesworth, Michael Pohoreski
AppleWin is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
AppleWin is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with AppleWin; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* Description: Data Blocks shown in Disassembler
*
* Author: Copyright (C) 2009 - 2010 Michael Pohoreski
*/
#include "StdAfx.h"
#include "Debug.h"
// Disassembler Data ______________________________________________________________________________
// __ Debugger Interface ____________________________________________________________________________
void _GetAutoSymbolName ( const Nopcode_e &nopcode, const WORD nStartAddress, char *pSymbolName )
{
switch (nopcode)
{
case NOP_ADDRESS:
sprintf( pSymbolName, "A_%04X", nStartAddress ); // DA range
break;
case NOP_FAC:
sprintf( pSymbolName, "F_%04X", nStartAddress ); // DF range
case NOP_STRING_ASCII:
case NOP_STRING_APPLE:
sprintf( pSymbolName, "T_%04X", nStartAddress ); // ASC range
break;
case NOP_WORD_1:
case NOP_WORD_2:
case NOP_WORD_4:
sprintf( pSymbolName, "W_%04X", nStartAddress ); // DW range
break;
case NOP_BYTE_1:
case NOP_BYTE_2:
case NOP_BYTE_4:
case NOP_BYTE_8:
default:
sprintf( pSymbolName, "B_%04X", nStartAddress ); // DB range
break;
}
}
// @param tData_ Filled out with range data
//===========================================================================
WORD _GetDataRange (int nArgs, int iArg, DisasmData_t& tData_)
{
WORD nAddress = 0;
WORD nAddress2 = 0;
WORD nEnd = 0;
int nLen = 0;
memset( (void*) &tData_, 0, sizeof(tData_) );
// DB address
// DB symbol
// bool bisAddress ...
if (nArgs < 1)
{
nAddress = g_nDisasmCurAddress;
}
else
{
// DB foo = 300 // nArgs == 3
RangeType_t eRange = Range_Get( nAddress, nAddress2, iArg);
if ((eRange == RANGE_HAS_END) ||
(eRange == RANGE_HAS_LEN))
{
Range_CalcEndLen( eRange, nAddress, nAddress2, nEnd, nLen );
nLen--; // Disassembly_IsDataAddress() is *inclusive* // KEEP IN SYNC: _CmdDefineByteRange() CmdDisasmDataList() _6502_GetOpmodeOpbyte() FormatNopcodeBytes()
}
else
{
if (nArgs > 1)
{
// 2.9.1.1 Add: Support for equal sign, also make it optional for command DB
// DB FOO 300
// DB FOO = 300
if (g_aArgs[2].bType == TOKEN_EQUAL)
nAddress = g_aArgs[ 3 ].nValue;
else
nAddress = g_aArgs[ 2 ].nValue;
}
else
nAddress = g_aArgs[ 1 ].nValue;
}
}
// 2.7.0.35 DW address -- round the length up to even number for convenience.
// Example: 'DW 6062' is equivalent to: 'DW 6062:6063'
if( g_iCommand == CMD_DEFINE_DATA_WORD1 )
{
if( ~nLen & 1 )
nLen++;
}
tData_.nStartAddress = nAddress;
tData_.nEndAddress = nAddress + nLen;
return nAddress;
}
//===========================================================================
WORD _CmdDefineByteRange(int nArgs,int iArg,DisasmData_t & tData_)
{
WORD nAddress = 0;
WORD nAddress2 = 0;
WORD nEnd = 0;
int nLen = 0;
nAddress = _GetDataRange(nArgs,iArg,tData_);
const char *pSymbolName = "";
char aSymbolName[ MAX_SYMBOLS_LEN+1 ];
SymbolTable_Index_e eSymbolTable = SYMBOLS_ASSEMBLY;
bool bAutoDefineName = false; // 2.7.0.34
if( nArgs > 1 )
{
if( g_aArgs[ 2 ].eToken == TOKEN_COLON ) // 2.7.0.31 Bug fix: DB range, i.e. DB 174E:174F
{
bAutoDefineName = true;
}
else
{
g_aArgs[ 1 ].sArg[MAX_SYMBOLS_LEN] = 0; // truncate to max symbol length
pSymbolName = g_aArgs[1].sArg;
}
}
else
{
bAutoDefineName = true;
}
// 2.7.0.34 Unified auto-defined name: B_, W_, T_ for byte, word, or text respectively
// Old name: auto define D_# DB $XX
// Example 'DB' or 'DW' with 1 arg
// DB 801
Nopcode_e nopcode = NOP_BYTE_1;
bool isFloat = (g_iCommand == CMD_DEFINE_DATA_FLOAT);
if( isFloat )
nopcode = NOP_FAC;
bool isString = (g_iCommand == CMD_DEFINE_DATA_STR);
if( isString )
nopcode = NOP_STRING_ASCII;
bool isWord1 = (g_iCommand == CMD_DEFINE_DATA_WORD1);
if( isWord1 )
nopcode = NOP_WORD_1;
bool isAddr = (g_iCommand == CMD_DEFINE_ADDR_WORD);
if( isAddr )
nopcode = NOP_ADDRESS;
if( bAutoDefineName )
{
_GetAutoSymbolName( nopcode, tData_.nStartAddress , aSymbolName );
pSymbolName = aSymbolName;
}
// bRemoveSymbol = false // use arg[2]
// bUpdateSymbol = true // add the symbol to the table
SymbolUpdate( eSymbolTable, pSymbolName, nAddress, false, true );
// TODO: Note: need to call ConsoleUpdate(), as may print symbol has been updated
// NOTE: We don't set the type here
// tData_.eElementType = nopcode;
// As that is done by the caller.
strcpy_s( tData_.sSymbol, sizeof(tData_.sSymbol), pSymbolName );
return nAddress;
}
// Undefine Data
//
// X
// X addr
// X addr:addr
//
// Example:
// DB hgr 2000:3FFF
// U 1FFF
// X 1FFF:2001
//===========================================================================
Update_t CmdDisasmDataDefCode (int nArgs)
{
// treat memory (bytes) as code
if (! ((nArgs <= 2) || (nArgs == 4)) && (nArgs != 3))
{
return Help_Arg_1( CMD_DISASM_CODE );
}
DisasmData_t tData; // X 1FFF:2001
WORD nAddress = 0; // 8191
int iArg = 0;
if (nArgs == 3)
{
iArg = 1; // #### : ####
nAddress = _GetDataRange( nArgs, iArg, tData );
}
else
{
iArg = 2;
nAddress = _GetDataRange( nArgs, iArg, tData );
}
// Need to iterate through all blocks
// DB TEST1 300:320
// DB TEST2 310:330
// DB TEST3 320:340
// X TEST1
/*
// Edge cases:
U 1FFF
DB 2000:2005
X 1FFF:2001 // Chop 2 head
X 2004:2006 // Chop 2 tail
X 1FFF:2006 // Chop entire
U 1FFF
DB 2000:2000
X 2000:2000 // Chop entire
U 1FFF
DB 2000:2002
X 2001:2001 // Chop middle
U 1FFF
DB 2000:2005
X 2002:2003 // Chop middle
*/
while (nAddress <= tData.nEndAddress)
{
DisasmData_t *pData = Disassembly_IsDataAddress( nAddress );
if( pData )
{
if (( nAddress <= pData->nStartAddress)
&& (tData.nEndAddress >= pData->nEndAddress ))
{
// remove entire
Disassembly_DelData( *pData );
}
else
if (( nAddress <= pData->nStartAddress)
&& (tData.nStartAddress < pData->nEndAddress ))
{
// head
pData->nStartAddress = nAddress+1;
}
else
if (( nAddress > pData->nStartAddress)
&& (tData.nEndAddress >= pData->nEndAddress ))
{
// tail
pData->nEndAddress = nAddress-1;
}
else
{
// middle
SymbolTable_Index_e eSymbolTable = SYMBOLS_ASSEMBLY;
DisasmData_t tSplit = *pData;
pData->nEndAddress = nAddress - 1;
const char *pSymbolName = tSplit.sSymbol;
tSplit.nStartAddress = tData.nEndAddress + 1; // nAddress + 1;
_GetAutoSymbolName( pData->eElementType, tSplit.nStartAddress, tSplit.sSymbol );
SymbolUpdate( eSymbolTable, pSymbolName, tSplit.nStartAddress, false, true );
Disassembly_AddData( tSplit );
}
// TODO: Remove symbol 'D_FA62' from symbol table!
}
nAddress++;
}
return UPDATE_DISASM | ConsoleUpdate();
}
const char* g_aNopcodeTypes[ NUM_NOPCODE_TYPES ] =
{
"-n/a-"
,"byte1"
,"byte2"
,"byte4"
,"byte8"
,"word1"
,"word2"
,"word4"
,"addr "
,"hex "
,"char "
,"ascii"
,"apple"
,"mixed"
,"FAC "
,"bmp "
};
// Command: B
// no args
// List the data blocks
//===========================================================================
Update_t CmdDisasmDataList (int nArgs)
{
// Need to iterate through all blocks
DisasmData_t* pData = NULL;
while( (pData = Disassembly_Enumerate( pData )) )
{
if (pData->iDirective != _NOP_REMOVED)
{
int nLen = strlen( pData->sSymbol );
// <smbol> <type> <start>:<end>
// `TEST `300`:`320
ConsolePrintFormat( "%s%s %s%*s %s%04X%s:%s%04X"
, CHC_CATEGORY
, g_aNopcodeTypes[ pData->eElementType ]
, (nLen > 0) ? CHC_SYMBOL : CHC_DEFAULT
, MAX_SYMBOLS_LEN
, (nLen > 0) ? pData->sSymbol : "???"
, CHC_ADDRESS
, pData->nStartAddress
, CHC_ARG_SEP
, CHC_ADDRESS
, pData->nEndAddress // Disassembly_IsDataAddress() is *inclusive* // KEEP IN SYNC: _CmdDefineByteRange() CmdDisasmDataList() _6502_GetOpmodeOpbyte() FormatNopcodeBytes()
);
}
}
return UPDATE_DISASM | ConsoleUpdate();
}
// Common code
// TODO: merge _CmdDisasmDataDefByteX() and _CmdDisasmDataDefWordX
// add params( iDirective, iOpcode ) to allow ASM_DEFINE_FLOAT, NOP_FAC
//===========================================================================
Update_t _CmdDisasmDataDefByteX (int nArgs)
{
// DB
// DB symbol // use current instruction pointer
// DB symbol address
// DB symbol range:range
// DB address
// To "return to code" use ."X"
int iCmd = g_aArgs[0].nValue - NOP_BYTE_1;
if (nArgs > 4) // 2.7.0.31 Bug fix: DB range, i.e. DB 174E:174F
{
return Help_Arg_1( CMD_DEFINE_DATA_BYTE1 + iCmd );
}
DisasmData_t tData;
int iArg = 2;
if (nArgs == 3 ) // 2.7.0.31 Bug fix: DB range, i.e. DB 174E:175F
{
if ( g_aArgs[ 2 ].eToken == TOKEN_COLON )
iArg = 1;
}
WORD nAddress = _CmdDefineByteRange( nArgs, iArg, tData );
// TODO: Allow user to select which assembler to use for displaying directives!
// tData.iDirective = FIRST_M_DIRECTIVE + ASM_M_DEFINE_BYTE;
tData.iDirective = g_aAssemblerFirstDirective[ g_iAssemblerSyntax ] + ASM_DEFINE_BYTE;
tData.eElementType = (Nopcode_e)( 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();
}
/*
Usage:
DW
DW symbol
DW symbol address
DW symbol range:range
DW address Auto-define W_#### where # is the address
DW range Auto-define W_#### where # is the address
Examples:
DW 3F2:3F3
*/
//===========================================================================
Update_t _CmdDisasmDataDefWordX (int nArgs)
{
int iCmd = g_aArgs[0].nValue - NOP_WORD_1;
if (nArgs > 4) // 2.7.0.31 Bug fix: DB range, i.e. DB 174E:174F
{
return Help_Arg_1( CMD_DEFINE_DATA_WORD1 + iCmd );
}
DisasmData_t tData;
int iArg = 2;
if (nArgs == 3 ) // 2.7.0.33 Bug fix: DW range, i.e. DW 3F2:3F3
{
if ( g_aArgs[ 2 ].eToken == TOKEN_COLON )
iArg = 1;
}
WORD nAddress = _CmdDefineByteRange( nArgs, iArg, tData );
// tData.iDirective = FIRST_M_DIRECTIVE + ASM_M_DEFINE_WORD;
tData.iDirective = g_aAssemblerFirstDirective[ g_iAssemblerSyntax ] + ASM_DEFINE_WORD;
tData.eElementType = (Nopcode_e)( 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;
}
// Command: DA
// Description: Markup data as an address (i.e. table of function pointers)
// Usage:
// DA <addr>
// Example:
// DA D000
// DA D000:D0B1
//===========================================================================
Update_t CmdDisasmDataDefAddress16 (int nArgs)
{
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.iDirective = g_aAssemblerFirstDirective[ g_iAssemblerSyntax ] + ASM_DEFINE_ADDRESS_16;
tData.eElementType = NOP_ADDRESS;
tData.bSymbolLookup = true;
tData.nTargetAddress = 0; // dynamic -- will be filled in ...
// Already exists, so update
DisasmData_t *pData = Disassembly_IsDataAddress( nAddress );
if( pData )
{
*pData = tData;
}
else
Disassembly_AddData( tData );
return UPDATE_DISASM | ConsoleUpdate();
}
// Command: DB
// Usage:
// DB <addr>
Update_t CmdDisasmDataDefByte1 ( int nArgs )
{
g_aArgs[0].nValue = NOP_BYTE_1;
return _CmdDisasmDataDefByteX( nArgs );
}
// Command: DB2
// Usage:
// DB2 <addr>
Update_t CmdDisasmDataDefByte2 ( int nArgs )
{
g_aArgs[0].nValue = NOP_BYTE_2;
return _CmdDisasmDataDefByteX( nArgs );
}
// Command: DB4
// Usage:
// DB4 <addr>
Update_t CmdDisasmDataDefByte4 ( int nArgs )
{
g_aArgs[0].nValue = NOP_BYTE_4;
return _CmdDisasmDataDefByteX( nArgs );
}
// Command DB8
// Usage:
// DB8 <addr>
Update_t CmdDisasmDataDefByte8 ( int nArgs )
{
g_aArgs[0].nValue = NOP_BYTE_8;
return _CmdDisasmDataDefByteX( nArgs );
}
// Command: DF
// Usage:
// DF <addr>
Update_t CmdDisasmDataDefFloat(int nArgs)
{
g_aArgs[0].nValue = NOP_FAC;
return _CmdDisasmDataDefByteX( nArgs );
}
// Command: DW
// Usage:
// DW <addr>
Update_t CmdDisasmDataDefWord1 ( int nArgs )
{
g_aArgs[0].nValue = NOP_WORD_1;
return _CmdDisasmDataDefWordX( nArgs );
}
// Command: DW2
// Usage:
// DW2 <addr>
Update_t CmdDisasmDataDefWord2 ( int nArgs )
{
g_aArgs[0].nValue = NOP_WORD_2;
return _CmdDisasmDataDefWordX( nArgs );
}
// Command: DW4
// Usage:
// DW4 <addr>
Update_t CmdDisasmDataDefWord4 ( int nArgs )
{
g_aArgs[0].nValue = NOP_WORD_4;
return _CmdDisasmDataDefWordX( nArgs );
}
// Command: DS
// Usage:
// DS <addr>
// ASC range Auto-define T_#### where # is the address
Update_t CmdDisasmDataDefString ( int nArgs )
{
int iCmd = 0; // Define Ascii, AppleText, MixedText (DOS3.3)
if (nArgs > 4) // 2.7.0.31 Bug fix: DB range, i.e. DB 174E:174F
{
return Help_Arg_1( CMD_DEFINE_DATA_STR + iCmd );
}
DisasmData_t tData;
int iArg = 2;
if (nArgs == 3 ) // 2.7.0.32 Bug fix: ASC range, i.e. ASC 174E:175F
{
if ( g_aArgs[ 2 ].eToken == TOKEN_COLON )
iArg = 1;
}
WORD nAddress = _CmdDefineByteRange( nArgs, iArg, tData );
// tData.iDirective = g_aAssemblerFirstDirective[ g_iAssemblerSyntax ] + ASM_DEFINE_APPLE_TEXT;
tData.iDirective = FIRST_M_DIRECTIVE + ASM_M_ASCII; // ASM_MERLIN
tData.eElementType = (Nopcode_e)( NOP_STRING_APPLE + 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();
}
// __ 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( nDataTargets )
{
DisasmData_t *pBegin = & g_aDisassemblerData[ 0 ];
DisasmData_t *pEnd = & g_aDisassemblerData[ nDataTargets - 1 ];
if( pCurrent )
{
pCurrent++;
if (pCurrent <= pEnd)
pData = pCurrent;
} else {
pData = pBegin;
}
}
return pData;
}
// 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( pData->iDirective != _NOP_REMOVED )
{
if( (nAddress >= pData->nStartAddress) && (nAddress <= pData->nEndAddress) )
{
return pData;
}
}
pData++;
}
pData = NULL; // bIsNopCode = false
}
return pData;
}
// Notes: tData.iDirective should not be _NOP_REMOVED !
//===========================================================================
void Disassembly_AddData( DisasmData_t tData)
{
g_aDisassemblerData.push_back( tData );
}
// DEPRECATED ! Inlined in _6502_GetOpmodeOpbyte() !
//===========================================================================
void Disassembly_GetData ( WORD nBaseAddress, const DisasmData_t *pData, DisasmLine_t & line_ )
{
if( !pData )
{
#if _DEBUG
ConsoleDisplayError( "Disassembly_GetData() but we don't have a valid DisasmData_t *" );
#endif
return;
}
}
//===========================================================================
void Disassembly_DelData( DisasmData_t tData)
{
// g_aDisassemblerData.erase( );
WORD nAddress = tData.nStartAddress;
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 (pData->iDirective != _NOP_REMOVED)
{
if ((nAddress >= pData->nStartAddress) && (nAddress <= pData->nEndAddress))
{
pData->iDirective = _NOP_REMOVED;
// TODO: delete from vector?
}
}
pData++;
}
pData = NULL; // bIsNopCode = false
}
}
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