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Supermodel/Src/Debugger/CPUDebug.cpp

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/**
** Supermodel
** A Sega Model 3 Arcade Emulator.
** Copyright 2011 Bart Trzynadlowski, Nik Henson
**
** This file is part of Supermodel.
**
** Supermodel 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 3 of the License, or (at your option)
** any later version.
**
** Supermodel 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 Supermodel. If not, see <http://www.gnu.org/licenses/>.
**/
/*
* CPUDebug.cpp
*/
#ifdef SUPERMODEL_DEBUGGER
#include "Supermodel.h"
#include "CPUDebug.h"
#include "CodeAnalyser.h"
#include "Label.h"
#include <cctype>
#include <string>
using namespace std;
namespace Debugger
{
CCPUDebug::CCPUDebug(const char *cpuType, const char *cpuName,
UINT8 cpuMinInstrLen, UINT8 cpuMaxInstrLen, bool cpuBigEndian, UINT8 cpuMemBusWidth, UINT8 cpuMaxMnemLen) :
type(cpuType), name(cpuName), minInstrLen(cpuMinInstrLen), maxInstrLen(cpuMaxInstrLen),
bigEndian(cpuBigEndian), memBusWidth(cpuMemBusWidth), maxMnemLen(cpuMaxMnemLen),
addrFmt(HexDollar), portFmt(Decimal), dataFmt(HexDollar), debugger(NULL),
numExCodes(0), numIntCodes(0), numPorts(0), memSize(0), active(false), instrCount(0), totalCycles(0), cyclesPerPoll(0), pc(0), opcode(0),
m_enabled(true), m_break(false), m_breakUser(false), m_halted(false), m_step(false), m_steppingOver(false), m_steppingOut(false),
m_count(0), m_until(false), m_untilAddr(0),
m_mappedIOTable(NULL), m_memWatchTable(NULL), m_bpTable(NULL), m_numRegMons(0), m_regMonArray(NULL),
m_analyser(NULL), m_stateUpdated(false), m_exRaised(NULL), m_exTrapped(NULL), m_intRaised(NULL), m_intTrapped(NULL), m_bpReached(NULL),
m_memWatchTriggered(NULL), m_ioWatchTriggered(NULL), m_regMonTriggered(NULL), m_prevTotalCycles(0)
{
memset(m_exArray, NULL, sizeof(m_exArray));
memset(m_intArray, NULL, sizeof(m_intArray));
memset(m_portArray, NULL, sizeof(m_portArray));
#ifdef DEBUGGER_HASTHREAD
m_breakWait = false;
m_mutex = CThread::CreateMutex();
m_condVar = CThread::CreateCondVar();
#endif // DEBUGGER_HASTHREAD
}
CCPUDebug::~CCPUDebug()
{
// Delete registers
for (vector<CRegister*>::iterator it = regs.begin(); it != regs.end(); it++)
delete *it;
regs.clear();
// Delete exceptions
for (vector<CException*>::iterator it = exceps.begin(); it != exceps.end(); it++)
delete *it;
exceps.clear();
memset(m_exArray, NULL, sizeof(m_exArray));
// Delete interrupts
for (vector<CInterrupt*>::iterator it = inters.begin(); it != inters.end(); it++)
delete *it;
inters.clear();
memset(m_intArray, NULL, sizeof(m_intArray));
// Delete IOs
for (vector<CIO*>::iterator it = ios.begin(); it != ios.end(); it++)
delete *it;
ios.clear();
memset(m_portArray, NULL, sizeof(m_portArray));
delete m_mappedIOTable;
// Delete regions
for (vector<CRegion*>::iterator it = regions.begin(); it != regions.end(); it++)
delete *it;
regions.clear();
// Delete labels, comments, memory watches, I/O watches, breakpoints and register monitors
RemoveAllLabels();
RemoveAllComments();
RemoveAllMemWatches();
RemoveAllIOWatches();
RemoveAllBreakpoints();
RemoveAllRegMonitors();
// Delete analyser, if any
if (m_analyser != NULL)
delete m_analyser;
}
void CCPUDebug::AttachToDebugger(CDebugger *theDebugger)
{
UpdateExecMasks();
UpdateMemMasks();
debugger = theDebugger;
}
void CCPUDebug::DetachFromDebugger(CDebugger *theDebugger)
{
if (debugger == theDebugger)
debugger = NULL;
}
CPCRegister *CCPUDebug::AddPCRegister(const char *name, const char *group)
{
CPCRegister *reg = new CPCRegister(this, name, group);
regs.push_back(reg);
return reg;
}
CAddrRegister *CCPUDebug::AddAddrRegister(const char *name, const char *group, unsigned id, GetInt32FPtr getFunc, SetInt32FPtr setFunc)
{
CAddrRegister *reg = new CAddrRegister(this, name, group, id, getFunc, setFunc);
regs.push_back(reg);
return reg;
}
CIntRegister *CCPUDebug::AddInt8Register(const char *name, const char *group, unsigned id, GetInt8FPtr getFunc, SetInt8FPtr setFunc)
{
CIntRegister *reg = new CIntRegister(this, name, group, id, getFunc, setFunc);
regs.push_back(reg);
return reg;
}
CIntRegister *CCPUDebug::AddInt16Register(const char *name, const char *group, unsigned id, GetInt16FPtr getFunc, SetInt16FPtr setFunc)
{
CIntRegister *reg = new CIntRegister(this, name, group, id, getFunc, setFunc);
regs.push_back(reg);
return reg;
}
CIntRegister *CCPUDebug::AddInt32Register(const char *name, const char *group, unsigned id, GetInt32FPtr getFunc, SetInt32FPtr setFunc)
{
CIntRegister *reg = new CIntRegister(this, name, group, id, getFunc, setFunc);
regs.push_back(reg);
return reg;
}
CIntRegister *CCPUDebug::AddInt64Register(const char *name, const char *group, unsigned id, GetInt64FPtr getFunc, SetInt64FPtr setFunc)
{
CIntRegister *reg = new CIntRegister(this, name, group, id, getFunc, setFunc);
regs.push_back(reg);
return reg;
}
CStatusRegister *CCPUDebug::AddStatus8Register(const char *name, const char *group, unsigned id, const char *bitStr, GetInt8FPtr getFunc, SetInt8FPtr setFunc)
{
CStatusRegister *reg = new CStatusRegister(this, name, group, id, getFunc, setFunc);
reg->SetBits(bitStr);
regs.push_back(reg);
return reg;
}
CStatusRegister *CCPUDebug::AddStatus16Register(const char *name, const char *group, unsigned id, const char *bitStr, GetInt16FPtr getFunc, SetInt16FPtr setFunc)
{
CStatusRegister *reg = new CStatusRegister(this, name, group, id, getFunc, setFunc);
reg->SetBits(bitStr);
regs.push_back(reg);
return reg;
}
CStatusRegister *CCPUDebug::AddStatus32Register(const char *name, const char *group, unsigned id, const char *bitStr, GetInt32FPtr getFunc, SetInt32FPtr setFunc)
{
CStatusRegister *reg = new CStatusRegister(this, name, group, id, getFunc, setFunc);
reg->SetBits(bitStr);
regs.push_back(reg);
return reg;
}
CFPointRegister *CCPUDebug::AddFPointRegister(const char *name, const char *group, unsigned id, GetFPointFPtr getFunc, SetFPointFPtr setFunc)
{
CFPointRegister *reg = new CFPointRegister(this, name, group, id, getFunc, setFunc);
regs.push_back(reg);
return reg;
}
CException *CCPUDebug::AddException(const char *id, UINT16 code, const char *name)
{
if (code >= MAX_EXCEPTIONS)
return NULL;
CException *ex = new CException(this, id, code, name);
exceps.push_back(ex);
m_exArray[code] = ex;
numExCodes = max<UINT16>(numExCodes, code + 1);
return ex;
}
CInterrupt *CCPUDebug::AddInterrupt(const char *id, UINT16 code, const char *name)
{
if (code >= MAX_INTERRUPTS)
return NULL;
CInterrupt *in = new CInterrupt(this, id, code, name);
inters.push_back(in);
m_intArray[code] = in;
numIntCodes = max<UINT16>(numIntCodes, code + 1);
return in;
}
CRegion *CCPUDebug::AddRegion(UINT32 start, UINT32 end, bool isCode, bool isReadOnly, const char *name)
{
if (debugger != NULL)
return NULL;
CRegion *region = new CRegion(this, start, end, isCode, isReadOnly, name);
if (regions.size() > 0)
{
region->prevRegion = regions[regions.size() - 1];
region->prevRegion->nextRegion = region;
}
regions.push_back(region);
memSize = max<UINT32>(memSize, end);
return region;
}
CPortIO *CCPUDebug::AddPortIO(UINT16 portNum, unsigned dataSize, const char *name, const char *group)
{
if (debugger != NULL || portNum >= MAX_IOPORTS)
return NULL;
CPortIO *port = new CPortIO(this, name, group, dataSize, portNum);
ios.push_back(port);
m_portArray[portNum] = port;
numPorts = max<UINT16>(numPorts, portNum + 1);
return port;
}
CMappedIO *CCPUDebug::AddMappedIO(UINT32 addr, unsigned dataSize, const char *name, const char *group)
{
if (debugger != NULL)
return NULL;
if (m_mappedIOTable == NULL)
m_mappedIOTable = new CAddressTable();
CMappedIO *mapped = new CMappedIO(this, name, group, dataSize, addr);
ios.push_back(mapped);
m_mappedIOTable->Add(mapped);
return mapped;
}
bool CCPUDebug::ParseData(const char *str, unsigned dataSize, UINT64 *data, bool registers)
{
// Check registers, if required
if (registers)
{
CRegister *reg = GetRegister(str);
if (reg != NULL)
{
*data = reg->GetValueAsInt();
return *data == CDebugger::MaskData(dataSize, *data);
}
}
return debugger->ParseData(str, dataFmt, dataSize, data) && *data == CDebugger::MaskData(dataSize, *data);
}
void CCPUDebug::FormatData(char *str, unsigned dataSize, UINT64 data)
{
debugger->FormatData(str, dataFmt, dataSize, data);
}
bool CCPUDebug::ParseAddress(const char *str, UINT32 *addr, bool customLabels, bool autoLabels, bool registers)
{
// Check custom labels, if required
if (customLabels)
{
CLabel *label = GetLabel(str);
if (label != NULL)
{
*addr = label->addr;
return GetRegion(*addr) != NULL;
}
}
// Check auto-labels, if required
if (autoLabels && m_analyser != NULL)
{
CAutoLabel *autoLabel = m_analyser->analysis->GetAutoLabel(str);
if (autoLabel != NULL)
{
*addr = autoLabel->addr;
return GetRegion(*addr) != NULL;
}
}
// Check registers, if required
if (registers)
{
CRegister *reg = GetRegister(str);
if (reg != NULL)
{
*addr = reg->GetValueAsInt();
return GetRegion(*addr) != NULL;
}
}
// Parse address
unsigned dataSize = (unsigned)(memBusWidth / 8);
UINT64 vlAddr;
if (!debugger->ParseData(str, addrFmt, dataSize, &vlAddr) || vlAddr > 0xFFFFFFFFULL)
return false;
*addr = (UINT32)vlAddr;
return GetRegion(*addr) != NULL;
}
void CCPUDebug::FormatAddress(char *str, UINT32 addr, bool customLabels, ELabelFlags autoLabelFlags)
{
// Check custom labels, if required
if (customLabels)
{
CLabel *label = GetLabel(addr);
if (label != NULL)
{
strcpy(str, label->name);
return;
}
}
// Check auto-labels, if required
if (autoLabelFlags != LFNone && m_analyser != NULL)
{
CAutoLabel *autoLabel = m_analyser->analysis->GetAutoLabel(addr);
if (autoLabel != NULL && autoLabel->GetLabel(str, autoLabelFlags))
{
autoLabel->GetLabel(str, autoLabelFlags);
return;
}
}
// Format address
debugger->FormatData(str, addrFmt, (unsigned)(memBusWidth / 8), (UINT64)addr);
}
void CCPUDebug::FormatJumpAddress(char *str, UINT32 jumpAddr, EOpFlags opFlags)
{
if (opFlags & JumpSub) FormatAddress(str, jumpAddr, true, LFSubroutine);
else if (opFlags & JumpLoop) FormatAddress(str, jumpAddr, true, LFLoopPoint);
else if (opFlags & JumpSimple) FormatAddress(str, jumpAddr, true, LFJumpTarget);
else FormatAddress(str, jumpAddr, true, LFNone);
}
bool CCPUDebug::ParsePortNum(const char *str, UINT16 *portNum, bool customLabels, bool registers)
{
// Check custom labels, if required
if (customLabels)
{
for (UINT16 loopNum = 0; loopNum < numPorts; loopNum++)
{
CPortIO *port = m_portArray[loopNum];
if (port == NULL || port->label == NULL)
continue;
if (stricmp(port->label, str) == 0)
{
*portNum = loopNum;
return true;
}
}
}
// Check registers, if required
if (registers)
{
CRegister *reg = GetRegister(str);
if (reg != NULL)
{
*portNum = reg->GetValueAsInt();
return *portNum < numPorts;
}
}
// Parse port num
unsigned dataSize = CDebugger::GetDataSize(numPorts);
UINT64 vlPortNum;
if (!debugger->ParseData(str, portFmt, dataSize, &vlPortNum))
return false;
*portNum = (UINT16)vlPortNum;
return *portNum < numPorts && GetPortIO(*portNum) != NULL;
}
void CCPUDebug::FormatPortNum(char *str, UINT16 portNum, bool customLabels)
{
if (portNum >= numPorts)
{
str[0] = '\0';
return;
}
// Check custom labels, if reqired
if (customLabels)
{
CPortIO *port = m_portArray[portNum];
if (port != NULL && port->label != NULL)
{
strcpy(str, port->label);
return;
}
}
// Format port num
unsigned dataSize = CDebugger::GetDataSize(numPorts);
debugger->FormatData(str, portFmt, dataSize, (UINT64)portNum);
}
bool CCPUDebug::IsEnabled()
{
return m_enabled;
}
void CCPUDebug::SetEnabled(bool enabled)
{
m_enabled = enabled;
UpdateExecMasks();
}
void CCPUDebug::ForceBreak(bool user)
{
m_breakUser |= user;
m_break = true;
UpdateExecMasks();
}
void CCPUDebug::ClearBreak()
{
#ifdef DEBUGGER_HASTHREAD
m_breakWait = false;
#endif // DEBUGGER_HASTHREAD
m_breakUser = false;
m_break = false;
UpdateExecMasks();
}
void CCPUDebug::SetContinue()
{
m_step = false;
m_count = 0;
m_until = false;
UpdateExecMasks();
}
void CCPUDebug::SetStepMode(EStepMode stepMode)
{
m_step = true;
m_stepMode = stepMode;
m_steppingOver = false;
m_steppingOut = false;
m_count = 0;
m_until = false;
UpdateExecMasks();
}
void CCPUDebug::SetCount(int count)
{
m_step = false;
m_count = count;
m_until = false;
UpdateExecMasks();
}
void CCPUDebug::SetUntil(UINT32 untilAddr)
{
m_step = false;
m_count = 0;
m_until = true;
m_untilAddr = untilAddr;
UpdateExecMasks();
}
bool CCPUDebug::SetPC(UINT32 newPC)
{
if (!UpdatePC(newPC))
return false;
pc = newPC;
m_stateUpdated = true;
UpdateExecMasks();
return true;
}
bool CCPUDebug::GenerateException(CException *ex)
{
if (!ForceException(ex))
return false;
m_stateUpdated = true;
UpdateExecMasks();
return true;
}
bool CCPUDebug::GenerateInterrupt(CInterrupt *in)
{
if (!ForceInterrupt(in))
return false;
m_stateUpdated = true;
UpdateExecMasks();
return true;
}
CRegister *CCPUDebug::GetRegister(const char *name)
{
for (vector<CRegister*>::iterator it = regs.begin(); it != regs.end(); it++)
{
if (stricmp((*it)->name, name) == 0)
return *it;
}
return NULL;
}
CException *CCPUDebug::GetException(const char *id)
{
for (vector<CException*>::iterator it = exceps.begin(); it != exceps.end(); it++)
{
if (stricmp((*it)->id, id) == 0)
return *it;
}
return NULL;
}
CException *CCPUDebug::GetException(UINT16 code)
{
if (code >= numExCodes)
return NULL;
return m_exArray[code];
}
CInterrupt *CCPUDebug::GetInterrupt(const char *id)
{
for (vector<CInterrupt*>::iterator it = inters.begin(); it != inters.end(); it++)
{
if (stricmp((*it)->id, id) == 0)
return *it;
}
return NULL;
}
CInterrupt *CCPUDebug::GetInterrupt(UINT16 code)
{
if (code >= numIntCodes)
return NULL;
return m_intArray[code];
}
CPortIO *CCPUDebug::GetPortIO(UINT16 portNum)
{
if (portNum >= numPorts)
return NULL;
return m_portArray[portNum];
}
CMappedIO *CCPUDebug::GetMappedIO(UINT32 addr)
{
if (m_mappedIOTable == NULL)
return NULL;
return (CMappedIO*)m_mappedIOTable->Get(addr);
}
CRegion *CCPUDebug::GetRegion(UINT32 addr)
{
for (vector<CRegion*>::iterator it = regions.begin(); it != regions.end(); it++)
{
if ((*it)->CheckAddr(addr))
return *it;
}
return NULL;
}
CLabel *CCPUDebug::GetLabel(UINT32 addr)
{
for (vector<CLabel*>::iterator it = labels.begin(); it != labels.end(); it++)
{
if ((*it)->CheckAddr(addr))
return *it;
}
return NULL;
}
CLabel *CCPUDebug::GetLabel(const char *name)
{
// TODO - use binary search
for (vector<CLabel*>::iterator it = labels.begin(); it != labels.end(); it++)
{
if (stricmp((*it)->name, name) == 0)
return *it;
}
return NULL;
}
CLabel *CCPUDebug::AddLabel(UINT32 addr, const char *name)
{
RemoveLabel(addr);
RemoveLabel(name);
CLabel *label = new CLabel(this, addr, name);
// TODO - keep labels in order of increasing address so can use binary search
labels.push_back(label);
return label;
}
bool CCPUDebug::RemoveLabel(const char *name)
{
CLabel *label = GetLabel(name);
if (label == NULL)
return false;
return RemoveLabel(label);
}
bool CCPUDebug::RemoveLabel(UINT32 addr)
{
CLabel *label = GetLabel(addr);
if (label == NULL)
return false;
RemoveLabel(label);
return true;
}
bool CCPUDebug::RemoveLabel(CLabel *label)
{
vector<CLabel*>::iterator it = find(labels.begin(), labels.end(), label);
if (it == labels.end())
return false;
labels.erase(it);
delete label;
return true;
}
bool CCPUDebug::RemoveAllLabels()
{
if (labels.size() == 0)
return false;
for (vector<CLabel*>::iterator it = labels.begin(); it != labels.end(); it++)
delete *it;
labels.clear();
return true;
}
CComment *CCPUDebug::GetComment(UINT32 addr)
{
// TODO - use binary search
for (vector<CComment*>::iterator it = comments.begin(); it != comments.end(); it++)
{
if ((*it)->CheckAddr(addr))
return *it;
}
return NULL;
}
CComment *CCPUDebug::AddComment(UINT32 addr, const char *commentText)
{
RemoveComment(addr);
CComment *comment = new CComment(this, addr, commentText);
// TODO - keep comments in order of increasing address so can use binary search
comments.push_back(comment);
return comment;
}
bool CCPUDebug::RemoveComment(UINT32 addr)
{
CComment *comment = GetComment(addr);
if (comment == NULL)
return false;
RemoveComment(comment);
return true;
}
bool CCPUDebug::RemoveComment(CComment *comment)
{
vector<CComment*>::iterator it = find(comments.begin(), comments.end(), comment);
if (it == comments.end())
return false;
comments.erase(it);
delete comment;
return true;
}
bool CCPUDebug::RemoveAllComments()
{
if (comments.size() == 0)
return false;
for (vector<CComment*>::iterator it = comments.begin(); it != comments.end(); it++)
delete *it;
comments.clear();
return true;
}
CSimpleWatch *CCPUDebug::AddSimpleMemWatch(UINT32 addr, UINT32 size, bool trigRead, bool trigWrite)
{
CSimpleWatch *watch = NULL;
// First check for mapped I/O at given addr
if (m_mappedIOTable != NULL)
{
CMappedIO *mapped = (CMappedIO*)m_mappedIOTable->Get(addr, size);
// If found, create watch for I/O
if (mapped != NULL)
watch = new CSimpleWatch(this, mapped, trigRead, trigWrite);
}
// Otherwise, create watch for memory addr
if (watch == NULL)
watch = new CSimpleWatch(this, addr, size, trigRead, trigWrite);
AddWatch(watch);
return watch;
}
CCountWatch *CCPUDebug::AddCountMemWatch(UINT32 addr, UINT32 size, bool trigRead, bool trigWrite, unsigned count)
{
CCountWatch *watch = NULL;
// First check for mapped I/O at given addr
if (m_mappedIOTable != NULL)
{
CMappedIO *mapped = (CMappedIO*)m_mappedIOTable->Get(addr, size);
// If found, create watch for I/O
if (mapped != NULL)
watch = new CCountWatch(this, mapped, trigRead, trigWrite, count);
}
// Otherwise, create watch for memory addr
if (watch == NULL)
watch = new CCountWatch(this, addr, size, trigRead, trigWrite, count);
AddWatch(watch);
return watch;
}
CMatchWatch *CCPUDebug::AddMatchMemWatch(UINT32 addr, UINT32 size, bool trigRead, bool trigWrite, vector<UINT64> &dataSeq)
{
CMatchWatch *watch = NULL;
// First check for mapped I/O at given addr
if (m_mappedIOTable != NULL)
{
CMappedIO *mapped = (CMappedIO*)m_mappedIOTable->Get(addr, size);
// If found, create watch for I/O
if (mapped != NULL)
watch = new CMatchWatch(this, mapped, trigRead, trigWrite, dataSeq);
}
// Otherwise, create watch for memory addr
if (watch == NULL)
watch = new CMatchWatch(this, addr, size, trigRead, trigWrite, dataSeq);
AddWatch(watch);
return watch;
}
CPrintWatch *CCPUDebug::AddPrintMemWatch(UINT32 addr, UINT32 size, bool trigRead, bool trigWrite)
{
CPrintWatch *watch = NULL;
// First check for mapped I/O at given addr
if (m_mappedIOTable != NULL)
{
CMappedIO *mapped = (CMappedIO*)m_mappedIOTable->Get(addr, size);
// If found, create watch for I/O
if (mapped != NULL)
watch = new CPrintWatch(this, mapped, trigRead, trigWrite);
}
// Otherwise, create watch for memory addr
if (watch == NULL)
watch = new CPrintWatch(this, addr, size, trigRead, trigWrite);
AddWatch(watch);
return watch;
}
CCaptureWatch *CCPUDebug::AddCaptureMemWatch(UINT32 addr, UINT32 size, bool trigRead, bool trigWrite, unsigned maxLen)
{
CCaptureWatch *watch = NULL;
// First check for mapped I/O at given addr
if (m_mappedIOTable != NULL)
{
CMappedIO *mapped = (CMappedIO*)m_mappedIOTable->Get(addr, size);
// If found, create watch for I/O
if (mapped != NULL)
watch = new CCaptureWatch(this, mapped, trigRead, trigWrite, maxLen);
}
// Otherwise, create watch for memory addr
if (watch == NULL)
watch = new CCaptureWatch(this, addr, size, trigRead, trigWrite, maxLen);
AddWatch(watch);
return watch;
}
bool CCPUDebug::RemoveAllMemWatches()
{
if (memWatches.size() == 0)
return false;
for (vector<CWatch*>::iterator it = memWatches.begin(); it != memWatches.end(); it++)
delete *it;
memWatches.clear();
delete m_memWatchTable;
m_memWatchTable = NULL;
UpdateMemMasks();
return true;
}
bool CCPUDebug::RemoveAllIOWatches()
{
if (ioWatches.size() == 0)
return false;
for (vector<CWatch*>::iterator it = ioWatches.begin(); it != ioWatches.end(); it++)
{
(*it)->io->watch = NULL;
delete *it;
}
ioWatches.clear();
return true;
}
bool CCPUDebug::RemoveMemWatch(UINT32 addr, unsigned size)
{
CWatch *watch;
bool removed = false;
while ((watch = GetMemWatch(addr, size)) != NULL)
removed |= RemoveWatch(watch);
return removed;
}
CWatch *CCPUDebug::GetMemWatch(UINT32 addr, unsigned size)
{
// First check for mapped I/O at given addr and size
if (m_mappedIOTable != NULL)
{
CMappedIO *mapped = (CMappedIO*)m_mappedIOTable->Get(addr, size);
// If found, check watch on I/O
if (mapped != NULL)
return mapped->watch;
}
// If none, check memory table for watch
if (m_memWatchTable == NULL)
return NULL;
return (CWatch*)m_memWatchTable->Get(addr, size);
}
void CCPUDebug::AddWatch(CWatch *watch)
{
CIO *io = watch->io;
if (io != NULL)
{
if (io->watch != NULL)
RemoveWatch(io->watch);
ioWatches.push_back(watch);
UpdateIOWatchNums();
io->watch = watch;
}
else
{
RemoveMemWatch(watch->addr, watch->size);
memWatches.push_back(watch);
UpdateMemWatchNums();
if (m_memWatchTable == NULL)
m_memWatchTable = new CAddressTable();
m_memWatchTable->Add(watch);
UpdateMemMasks();
}
}
bool CCPUDebug::RemoveWatch(CWatch *watch)
{
CIO *io = watch->io;
if (io != NULL)
{
io->watch = NULL;
vector<CWatch*>::iterator it = find(ioWatches.begin(), ioWatches.end(), watch);
if (it == ioWatches.end())
return false;
ioWatches.erase(it);
UpdateIOWatchNums();
}
else
{
vector<CWatch*>::iterator it = find(memWatches.begin(), memWatches.end(), watch);
if (it == memWatches.end())
return false;
memWatches.erase(it);
UpdateMemWatchNums();
m_memWatchTable->Remove(watch);
if (m_memWatchTable->IsEmpty())
{
delete m_memWatchTable;
m_memWatchTable = NULL;
}
UpdateMemMasks();
}
delete watch;
return true;
}
void CCPUDebug::UpdateIOWatchNums()
{
unsigned num = 0;
for (vector<CWatch*>::iterator it = ioWatches.begin(); it != ioWatches.end(); it++)
(*it)->num = num++;
}
void CCPUDebug::UpdateMemWatchNums()
{
unsigned num = 0;
for (vector<CWatch*>::iterator it = memWatches.begin(); it != memWatches.end(); it++)
(*it)->num = num++;
}
void CCPUDebug::UpdateExecMasks()
{
if (!m_enabled)
{
m_execAndMask = 0xFFFFFFFF;
m_execOrMask = 0xFFFFFFFF;
}
else if (m_break || m_stateUpdated || m_numRegMons > 0 || m_step || m_count > 0)
{
m_execAndMask = 0;
m_execOrMask = 0;
}
else if (bps.size() > 0 || m_until)
{
UINT32 andMask = 0xFFFFFFFF;
UINT32 orMask = 0;
for (vector<CBreakpoint*>::iterator it = bps.begin(), end = bps.end(); it != end; it++)
{
UINT32 addr = (*it)->addr;
andMask &= addr;
orMask |= addr;
}
if (m_until)
{
andMask &= m_untilAddr;
orMask |= m_untilAddr;
}
m_execAndMask = andMask;
m_execOrMask = ~orMask;
}
else
{
m_execAndMask = 0xFFFFFFFF;
m_execOrMask = 0xFFFFFFFF;
}
}
void CCPUDebug::UpdateMemMasks()
{
UINT32 and8Mask = 0xFFFFFFFF;
UINT32 and16Mask = 0xFFFFFFFF;
UINT32 and32Mask = 0xFFFFFFFF;
UINT32 and64Mask = 0xFFFFFFFF;
UINT32 or8Mask = 0;
UINT32 or16Mask = 0;
UINT32 or32Mask = 0;
UINT32 or64Mask = 0;
for (vector<CIO*>::iterator it = ios.begin(), end = ios.end(); it != end; it++)
{
CMappedIO *mapped = dynamic_cast<CMappedIO*>(*it);
if (!mapped)
continue;
UINT32 addr = mapped->addr;
CRegion *region = GetRegion(addr);
int intSize = (int)mapped->size;
for (int offset = -7; offset < intSize; offset++)
{
if (offset < 0 && addr < abs(offset) || offset > 0 && addr > 0xFFFFFFFF - offset)
continue;
UINT32 offAddr = addr + offset;
if (!region->CheckAddr(offAddr))
continue;
if (offset >= 0)
{
and8Mask &= offAddr;
or8Mask |= offAddr;
and16Mask &= offAddr;
or16Mask |= offAddr;
and32Mask &= offAddr;
or32Mask |= offAddr;
and64Mask &= offAddr;
or64Mask |= offAddr;
}
else
{
if (offset > -2)
{
and16Mask &= offAddr;
or16Mask |= offAddr;
}
if (offset > -4)
{
and32Mask &= offAddr;
or32Mask |= offAddr;
}
and64Mask &= offAddr;
or64Mask |= offAddr;
}
}
}
for (vector<CWatch*>::iterator it = memWatches.begin(), end = memWatches.end(); it != end; it++)
{
UINT32 addr = (*it)->addr;
CRegion *region = GetRegion(addr);
int intSize = (int)(*it)->size;
for (int offset = -7; offset < intSize; offset++)
{
if (offset < 0 && addr < abs(offset) || offset > 0 && addr > 0xFFFFFFFF - offset)
continue;
UINT32 offAddr = addr + offset;
if (!region->CheckAddr(offAddr))
continue;
if (offset >= 0)
{
and8Mask &= offAddr;
or8Mask |= offAddr;
and16Mask &= offAddr;
or16Mask |= offAddr;
and32Mask &= offAddr;
or32Mask |= offAddr;
and64Mask &= offAddr;
or64Mask |= offAddr;
}
else
{
if (offset > -2)
{
and16Mask &= offAddr;
or16Mask |= offAddr;
}
if (offset > -4)
{
and32Mask &= offAddr;
or32Mask |= offAddr;
}
and64Mask &= offAddr;
or64Mask |= offAddr;
}
}
}
m_mem8AndMask = and8Mask;
m_mem8OrMask = ~or8Mask;
m_mem16AndMask = and16Mask;
m_mem16OrMask = ~or16Mask;
m_mem32AndMask = and32Mask;
m_mem32OrMask = ~or32Mask;
m_mem64AndMask = and64Mask;
m_mem64OrMask = ~or64Mask;
}
CSimpleBreakpoint *CCPUDebug::AddSimpleBreakpoint(UINT32 addr)
{
CSimpleBreakpoint *bp = new CSimpleBreakpoint(this, addr);
AddBreakpoint(bp);
return bp;
}
CCountBreakpoint *CCPUDebug::AddCountBreakpoint(UINT32 addr, unsigned count)
{
CCountBreakpoint *bp = new CCountBreakpoint(this, addr, count);
AddBreakpoint(bp);
return bp;
}
CPrintBreakpoint *CCPUDebug::AddPrintBreakpoint(UINT32 addr)
{
CPrintBreakpoint *bp = new CPrintBreakpoint(this, addr);
AddBreakpoint(bp);
return bp;
}
CBreakpoint *CCPUDebug::GetBreakpoint(UINT32 addr)
{
if (m_bpTable == NULL)
return NULL;
return (CBreakpoint*)m_bpTable->Get(addr);
}
void CCPUDebug::AddBreakpoint(CBreakpoint *bp)
{
RemoveBreakpoint(bp->addr);
bps.push_back(bp);
UpdateBreakpointNums();
if (m_bpTable == NULL)
m_bpTable = new CAddressTable();
m_bpTable->Add(bp);
UpdateExecMasks();
}
bool CCPUDebug::RemoveBreakpoint(UINT32 addr)
{
CBreakpoint *bp = GetBreakpoint(addr);
if (bp == NULL)
return false;
return RemoveBreakpoint(bp);
}
bool CCPUDebug::RemoveBreakpoint(CBreakpoint *bp)
{
vector<CBreakpoint*>::iterator it = find(bps.begin(), bps.end(), bp);
if (it == bps.end())
return false;
bps.erase(it);
UpdateBreakpointNums();
m_bpTable->Remove(bp);
if (m_bpTable->IsEmpty())
{
delete m_bpTable;
m_bpTable = NULL;
}
delete bp;
UpdateExecMasks();
return true;
}
bool CCPUDebug::RemoveAllBreakpoints()
{
if (bps.size() == 0)
return false;
for (vector<CBreakpoint*>::iterator it = bps.begin(); it != bps.end(); it++)
delete *it;
bps.clear();
delete m_bpTable;
m_bpTable = NULL;
UpdateExecMasks();
return true;
}
void CCPUDebug::UpdateBreakpointNums()
{
unsigned num = 0;
for (vector<CBreakpoint*>::iterator it = bps.begin(); it != bps.end(); it++)
(*it)->num = num++;
}
CRegMonitor *CCPUDebug::AddRegMonitor(const char *regName)
{
RemoveRegMonitor(regName);
CRegister *reg = GetRegister(regName);
if (reg == NULL)
return NULL;
CRegMonitor *regMon = reg->CreateMonitor();
AddRegMonitor(regMon);
return regMon;
}
CRegMonitor *CCPUDebug::GetRegMonitor(const char *regName)
{
for (vector<CRegMonitor*>::iterator it = regMons.begin(); it != regMons.end(); it++)
{
if (stricmp((*it)->reg->name, regName) == 0)
return *it;
}
return NULL;
}
void CCPUDebug::AddRegMonitor(CRegMonitor *regMon)
{
regMons.push_back(regMon);
UpdateRegMonArray();
UpdateExecMasks();
}
bool CCPUDebug::RemoveRegMonitor(const char *regName)
{
CRegMonitor *regMon = GetRegMonitor(regName);
if (regMon == NULL)
return false;
return RemoveRegMonitor(regMon);
}
bool CCPUDebug::RemoveRegMonitor(CRegMonitor *regMon)
{
vector<CRegMonitor*>::iterator it = find(regMons.begin(), regMons.end(), regMon);
if (it == regMons.end())
return false;
regMons.erase(it);
delete regMon;
UpdateRegMonArray();
UpdateExecMasks();
return true;
}
bool CCPUDebug::RemoveAllRegMonitors()
{
if (regMons.size() == 0)
return false;
for (vector<CRegMonitor*>::iterator it = regMons.begin(); it != regMons.end(); it++)
delete *it;
regMons.clear();
UpdateRegMonArray();
UpdateExecMasks();
return true;
}
void CCPUDebug::UpdateRegMonArray()
{
if (m_regMonArray != NULL)
delete m_regMonArray;
m_numRegMons = regMons.size();
if (m_numRegMons > 0)
{
m_regMonArray = new CRegMonitor*[m_numRegMons];
copy(regMons.begin(), regMons.end(), m_regMonArray);
}
else
m_regMonArray = NULL;
}
CCodeAnalyser *CCPUDebug::GetCodeAnalyser()
{
if (m_analyser == NULL)
m_analyser = new CCodeAnalyser(this);
return m_analyser;
}
bool CCPUDebug::FindInMem(UINT32 start, UINT32 end, const char *str, bool matchCase, UINT32 &findAddr)
{
size_t len = strlen(str);
const char *matchEnd = str + len - 1;
const char *matchPos;
if (start <= end)
{
matchPos = str;
for (UINT32 addr = start; addr <= end + len - 1; addr++)
{
char c = (char)ReadMem(addr, 1);
if (matchCase && c == *matchPos || !matchCase && toupper(c) == toupper(*matchPos))
{
if (matchPos == matchEnd)
{
findAddr = addr - len + 1;
return true;
}
else
matchPos++;
}
else
matchPos = str;
if (addr == 0xFFFFFFFFU)
break;
}
}
else
{
matchPos = matchEnd;
for (UINT32 addr = start + len - 1; addr >= end; addr--)
{
char c = (char)ReadMem(addr, 1);
if (matchCase && c == *matchPos || !matchCase && toupper(c) == toupper(*matchPos))
{
if (matchPos == str)
{
findAddr = addr;
return true;
}
else
matchPos--;
}
else
matchPos = matchEnd;
if (addr == 0)
break;
}
}
return false;
}
bool CCPUDebug::FindInMem(UINT32 start, UINT32 end, UINT8 *bytes, unsigned length, UINT32 &findAddr)
{
UINT32 matchEnd = length - 1;
UINT32 matchPos;
if (start <= end)
{
matchPos = 0;
for (UINT32 addr = start; addr <= end; addr++)
{
UINT8 b = (UINT8)ReadMem(addr, 1);
if (b == bytes[matchPos])
{
if (matchPos == matchEnd)
{
findAddr = addr - matchPos;
return true;
}
else
matchPos++;
}
else
matchPos = 0;
if (addr == 0xFFFFFFFFU)
break;
}
}
else
{
matchPos = matchEnd;
for (UINT32 addr = end; addr >= start; addr--)
{
UINT8 b = (UINT8)ReadMem(addr, 1);
if (b == bytes[matchPos])
{
if (matchPos == 0)
{
findAddr = addr;
return true;
}
else
matchPos++;
}
else
matchPos = matchEnd;
if (addr == 0)
break;
}
}
return false;
}
#ifdef DEBUGGER_HASBLOCKFILE
bool CCPUDebug::LoadState(CBlockFile *state)
{
char blockStr[255];
UINT32 addr;
UINT32 addrEnd;
UINT32 strLen;
char str[4096];
// Load labels
sprintf(blockStr, "%s.labels", name);
if (state->FindBlock(blockStr) == OKAY)
{
labels.clear();
UINT32 numLabels;
state->Read(&numLabels, sizeof(numLabels));
for (UINT32 i = 0; i < numLabels; i++)
{
state->Read(&addr, sizeof(addr));
state->Read(&addrEnd, sizeof(addrEnd));
state->Read(&strLen, sizeof(strLen));
state->Read(str, strLen * sizeof(char));
str[strLen] = '\0';
CLabel *label = new CLabel(this, addr, addrEnd, str);
labels.push_back(label);
}
}
// Load comments
sprintf(blockStr, "%s.comments", name);
if (state->FindBlock(blockStr) == OKAY)
{
comments.clear();
UINT32 numComments;
state->Read(&numComments, sizeof(numComments));
for (UINT32 i = 0; i < numComments; i++)
{
state->Read(&addr, sizeof(addr));
state->Read(&strLen, sizeof(strLen));
state->Read(str, strLen * sizeof(char));
str[strLen] = '\0';
CComment *comment = new CComment(this, addr, str);
comments.push_back(comment);
}
}
// Load analyser state
CCodeAnalyser *analyser = GetCodeAnalyser();
if (!analyser->LoadState(state))
return false;
// TODO - load breakpoints, watches, exception/interrupt traps and register monitors
return true;
}
bool CCPUDebug::SaveState(CBlockFile *state)
{
char blockStr[255];
UINT32 addr;
UINT32 addrEnd;
UINT32 strLen;
const char *str;
// Save labels
sprintf(blockStr, "%s.labels", name);
state->NewBlock(blockStr, __FILE__);
UINT32 numLabels = (UINT32)labels.size();
state->Write(&numLabels, sizeof(numLabels));
for (vector<CLabel*>::iterator it = labels.begin(); it != labels.end(); it++)
{
addr = (*it)->addr;
addrEnd = (*it)->addrEnd;
str = (*it)->name;
strLen = min<UINT32>(4095, (UINT32)strlen(str));
state->Write(&addr, sizeof(addr));
state->Write(&addrEnd, sizeof(addrEnd));
state->Write(&strLen, sizeof(strLen));
state->Write(str, strLen * sizeof(char));
}
// Save comments
sprintf(blockStr, "%s.comments", name);
state->NewBlock(blockStr, __FILE__);
UINT32 numComments = (UINT32)comments.size();
state->Write(&numComments, sizeof(numComments));
for (vector<CComment*>::iterator it = comments.begin(); it != comments.end(); it++)
{
addr = (*it)->addr;
addrEnd = (*it)->addrEnd;
str = (*it)->text;
strLen = min<UINT32>(4095, (UINT32)strlen(str));
state->Write(&addr, sizeof(addr));
state->Write(&strLen, sizeof(strLen));
state->Write(str, strLen * sizeof(char));
}
// Save analyser state, if available
if (m_analyser != NULL && !m_analyser->SaveState(state))
return false;
// TODO - save breakpoints, watches, exception/interrupt traps and register monitors
return true;
}
#endif // DEBUGGER_HASBLOCKFILE
void CCPUDebug::CPUException(UINT16 exCode)
{
if (exCode >= numExCodes)
return;
CException *ex = m_exArray[exCode];
if (ex == NULL)
return;
m_exRaised = ex;
ex->count++;
if (!ex->trap)
return;
m_exTrapped = ex;
debugger->ExceptionTrapped(ex);
m_break = true;
UpdateExecMasks();
}
void CCPUDebug::CPUInterrupt(UINT16 intCode)
{
if (intCode >= numIntCodes)
return;
CInterrupt *in = m_intArray[intCode];
if (in == NULL)
return;
m_intRaised = in;
in->count++;
if (!in->trap)
return;
m_intTrapped = in;
debugger->InterruptTrapped(in);
m_break = true;
UpdateExecMasks();
}
void CCPUDebug::CPUActive()
{
#ifdef DEBUGGER_HASTHREAD
m_mutex->Lock();
active = true;
m_condVar->Signal();
m_mutex->Unlock();
#else
active = true;
#endif // DEBUGGER_HASTHREAD
}
void CCPUDebug::CPUInactive()
{
#ifdef DEBUGGER_HASTHREAD
m_mutex->Lock();
active = false;
m_condVar->Signal();
m_mutex->Unlock();
#else
active = false;
#endif // DEBUGGER_HASTHREAD
}
void CCPUDebug::WaitCommand(EHaltReason reason)
{
#ifdef DEBUGGER_HASTHREAD
m_mutex->Lock();
m_halted = true;
m_condVar->Signal();
if (debugger->MakePrimary(this))
{
if (reason != HaltNone)
debugger->ExecutionHalted(this, reason);
debugger->WaitCommand(this);
if (!m_stateUpdated)
debugger->ReleasePrimary();
}
else
{
if (reason != HaltNone)
debugger->ExecutionHalted(this, reason);
while (m_breakWait)
m_condVar->Wait(m_mutex);
}
m_halted = false;
m_condVar->Signal();
m_mutex->Unlock();
#else
if (reason != HaltNone)
debugger->ExecutionHalted(this, reason);
debugger->WaitCommand(this);
debugger->ClearBreak();
#endif // DEBUGGER_HASTHREAD
}
#ifdef DEBUGGER_HASTHREAD
void CCPUDebug::ForceWait()
{
m_mutex->Lock();
m_breakWait = true;
m_break = true;
UpdateExecMasks();
m_condVar->Signal();
m_mutex->Unlock();
}
void CCPUDebug::WaitForHalt()
{
m_mutex->Lock();
// Wait for CPU to become inactive or halt
while (active && !m_halted)
m_condVar->Wait(m_mutex);
m_mutex->Unlock();
}
void CCPUDebug::ClearWait()
{
m_mutex->Lock();
ClearBreak();
m_condVar->Signal();
m_mutex->Unlock();
}
#endif // DEBUGGER_HASTHREAD
void CCPUDebug::DebuggerReset()
{
instrCount = 0;
// TODO - reset breakpoints, watches, I/O ports, exceptions, interrupts and reg monitors
// Reset code analyser
if (m_analyser != NULL)
m_analyser->Reset();
}
void CCPUDebug::DebuggerPolled()
{
cyclesPerPoll = totalCycles - m_prevTotalCycles;
m_prevTotalCycles = totalCycles;
}
UINT64 CCPUDebug::ReadMem(UINT32 addr, unsigned dataSize)
{
// TODO - currently assumes big-endian - should act according to this.bigEndian
UINT64 dataH, dataL;
switch (dataSize)
{
case 1:
// Sub-class should at the very least override and implement this case
return 0;
case 2:
dataH = ReadMem(addr, 1);
dataL = ReadMem(addr + 1, 1);
return (dataH<<8) | dataL;
case 4:
dataH = ReadMem(addr, 2);
dataL = ReadMem(addr + 2, 2);
return (dataH<<16) | dataL;
case 8:
dataH = ReadMem(addr, 4);
dataL = ReadMem(addr + 4, 4);
return (dataH<<32) | dataL;
default: return 0;
}
}
bool CCPUDebug::WriteMem(UINT32 addr, unsigned dataSize, UINT64 data)
{
// TODO - currently assumes big-endian - should act according to this.bigEndian
UINT64 dataH, dataL;
switch (dataSize)
{
case 1:
// Sub-class should at the very least override and implement this case
return false;
case 2:
dataH = (data>>8)&0xFF;
dataL = data&0xFF;
return WriteMem(addr, 1, dataH) && WriteMem(addr + 1, 1, dataL);
case 4:
dataH = (data>>16)&0xFFFF;
dataL = data&0xFFFF;
return WriteMem(addr, 2, dataH) && WriteMem(addr + 2, 2, dataL);
case 8:
dataH = data>>32;
dataL = data&0xFFFFFFFF;
return WriteMem(addr, 4, dataH) && WriteMem(addr + 4, 4, dataL);
default: return false;
}
}
UINT64 CCPUDebug::ReadPort(UINT16 portNum)
{
return 0;
}
bool CCPUDebug::WritePort(UINT16 portNum, UINT64 data)
{
return false;
}
int CCPUDebug::GetOpLength(UINT32 addr)
{
// Default is to use disassemble to work out instruction length
char mnemonic[255];
char operands[255];
return Disassemble(addr, mnemonic, operands);
}
UINT32 CCPUDebug::GetOpcode(UINT32 addr)
{
return (UINT32)ReadMem(addr, min<int>(4, minInstrLen));
}
}
#endif // SUPERMODEL_DEBUGGER
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