mirror of
https://github.com/RetroDECK/Supermodel.git
synced 2024-11-27 16:15:40 +00:00
1040 lines
28 KiB
C++
1040 lines
28 KiB
C++
/**
|
|
** 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.h
|
|
*/
|
|
|
|
#ifdef SUPERMODEL_DEBUGGER
|
|
#ifndef INCLUDED_CPUDEBUG_H
|
|
#define INCLUDED_CPUDEBUG_H
|
|
|
|
#include <stdio.h>
|
|
#include <vector>
|
|
#include <algorithm>
|
|
|
|
#include "Types.h"
|
|
#include "CodeAnalyser.h"
|
|
#include "AddressTable.h"
|
|
#include "Breakpoint.h"
|
|
#include "Debugger.h"
|
|
#include "Exception.h"
|
|
#include "Interrupt.h"
|
|
#include "DebuggerIO.h"
|
|
#include "Register.h"
|
|
#include "Watch.h"
|
|
|
|
#ifdef DEBUGGER_HASBLOCKFILE
|
|
#include "BlockFile.h"
|
|
#endif // DEBUGGER_HASBLOCKFILE
|
|
|
|
#ifdef DEBUGGER_HASTHREAD
|
|
#include "OSD/Thread.h"
|
|
#endif // DEBUGGER_HASTHREAD
|
|
|
|
#define MAX_EXCEPTIONS 255
|
|
#define MAX_INTERRUPTS 255
|
|
#define MAX_IOPORTS 255
|
|
|
|
namespace Debugger
|
|
{
|
|
class CRegion;
|
|
class CLabel;
|
|
class CComment;
|
|
|
|
enum EStepMode
|
|
{
|
|
StepInto = 0,
|
|
StepOver,
|
|
StepOut
|
|
};
|
|
|
|
enum EOpFlags
|
|
{
|
|
NormalOp = 0,
|
|
JumpSimple = 1,
|
|
JumpLoop = 2,
|
|
JumpSub = 4,
|
|
JumpEx = 8,
|
|
ReturnSub = 16,
|
|
ReturnEx = 32,
|
|
HaltExec = 64,
|
|
Relative = 128,
|
|
Conditional = 256,
|
|
NotFixed = 512
|
|
};
|
|
|
|
/*
|
|
* Base class that facilitates the debugging of a particular emulated CPU.
|
|
* It holds the debugging hooks that the CPU should call to implement debugging.
|
|
* Also contains CPU-specific information and provides access to CPU-specific objects such as CRegister, CException etc.
|
|
*/
|
|
class CCPUDebug
|
|
{
|
|
friend class CDebugger;
|
|
|
|
private:
|
|
bool m_enabled;
|
|
bool m_break;
|
|
#ifdef DEBUGGER_HASTHREAD
|
|
bool m_breakWait;
|
|
#endif // DEBUGGER_HASTHREAD
|
|
bool m_breakUser;
|
|
bool m_halted;
|
|
bool m_step;
|
|
EStepMode m_stepMode;
|
|
bool m_stepBreak;
|
|
bool m_steppingOver;
|
|
UINT32 m_stepOverAddr;
|
|
bool m_steppingOut;
|
|
UINT32 m_stepOutAddr;
|
|
int m_count;
|
|
bool m_until;
|
|
UINT32 m_untilAddr;
|
|
UINT32 m_execAndMask;
|
|
UINT32 m_execOrMask;
|
|
UINT32 m_mem8AndMask;
|
|
UINT32 m_mem8OrMask;
|
|
UINT32 m_mem16AndMask;
|
|
UINT32 m_mem16OrMask;
|
|
UINT32 m_mem32AndMask;
|
|
UINT32 m_mem32OrMask;
|
|
UINT32 m_mem64AndMask;
|
|
UINT32 m_mem64OrMask;
|
|
|
|
#ifdef DEBUGGER_HASTHREAD
|
|
CMutex *m_mutex;
|
|
CCondVar *m_condVar;
|
|
#endif // DEBUGGER_HASTHREAD
|
|
|
|
CException *m_exArray[MAX_EXCEPTIONS];
|
|
CInterrupt *m_intArray[MAX_INTERRUPTS];
|
|
CPortIO *m_portArray[MAX_IOPORTS];
|
|
|
|
CAddressTable *m_mappedIOTable;
|
|
CAddressTable *m_memWatchTable;
|
|
CAddressTable *m_bpTable;
|
|
|
|
int m_numRegMons;
|
|
CRegMonitor **m_regMonArray;
|
|
|
|
bool ShiftAddress(UINT32 &addr, unsigned &dataSize, UINT64 &data, CAddressRef *ref);
|
|
|
|
void CheckRead(UINT32 addr, unsigned dataSize, UINT64 data);
|
|
|
|
void CheckWrite(UINT32 addr, unsigned dataSize, UINT64 data);
|
|
|
|
void MemWatchTriggered(CWatch *watch, UINT32 addr, unsigned dataSize, UINT64 data, bool isRead);
|
|
|
|
void IOWatchTriggered(CWatch *watch, CIO *io, UINT64 data, bool isRead);
|
|
|
|
void AttachToDebugger(CDebugger *theDebugger);
|
|
|
|
void DetachFromDebugger(CDebugger *theDebugger);
|
|
|
|
void UpdateRegMonArray();
|
|
|
|
void UpdateIOWatchNums();
|
|
|
|
void UpdateMemWatchNums();
|
|
|
|
void UpdateExecMasks();
|
|
|
|
void UpdateMemMasks();
|
|
|
|
bool CheckExecute(UINT32 newPC, UINT32 newOpcode, UINT32 lastCycles);
|
|
|
|
protected:
|
|
CCodeAnalyser *m_analyser;
|
|
|
|
bool m_stateUpdated;
|
|
CException *m_exRaised;
|
|
CException *m_exTrapped;
|
|
CInterrupt *m_intRaised;
|
|
CInterrupt *m_intTrapped;
|
|
CBreakpoint *m_bpReached;
|
|
CWatch *m_memWatchTriggered;
|
|
CWatch *m_ioWatchTriggered;
|
|
CRegMonitor *m_regMonTriggered;
|
|
|
|
UINT64 m_prevTotalCycles;
|
|
|
|
CCPUDebug(const char *cpuType, const char *cpuName,
|
|
UINT8 cpuMinInstrLen, UINT8 cpuMaxInstrLen, bool cpuBigEndian, UINT8 cpuMemBusWidth, UINT8 cpuMaxMnemLen);
|
|
|
|
//
|
|
// Protected virtual methods for sub-class to implement
|
|
//
|
|
|
|
virtual bool UpdatePC(UINT32 pc) = 0;
|
|
|
|
virtual bool ForceException(CException *ex) = 0;
|
|
|
|
virtual bool ForceInterrupt(CInterrupt *in) = 0;
|
|
|
|
public:
|
|
const char *type;
|
|
const char *name;
|
|
|
|
const UINT8 minInstrLen;
|
|
const UINT8 maxInstrLen;
|
|
const bool bigEndian;
|
|
const UINT8 memBusWidth;
|
|
const UINT8 maxMnemLen;
|
|
|
|
EFormat addrFmt;
|
|
EFormat portFmt;
|
|
EFormat dataFmt;
|
|
|
|
CDebugger *debugger;
|
|
|
|
UINT16 numExCodes;
|
|
UINT16 numIntCodes;
|
|
UINT16 numPorts;
|
|
UINT32 memSize;
|
|
|
|
bool active;
|
|
UINT64 instrCount;
|
|
UINT64 totalCycles;
|
|
UINT64 cyclesPerPoll;
|
|
UINT32 pc;
|
|
UINT32 opcode;
|
|
|
|
std::vector<CRegister*> regs;
|
|
std::vector<CException*> exceps;
|
|
std::vector<CInterrupt*> inters;
|
|
std::vector<CIO*> ios;
|
|
// TODO - should use map<UINT32,T*> for T=CRegion,CLabel&CComment so that look-ups via address are faster
|
|
std::vector<CRegion*> regions;
|
|
std::vector<CLabel*> labels;
|
|
std::vector<CComment*> comments;
|
|
std::vector<CWatch*> memWatches;
|
|
std::vector<CWatch*> ioWatches;
|
|
std::vector<CBreakpoint*> bps;
|
|
std::vector<CRegMonitor*> regMons;
|
|
|
|
virtual ~CCPUDebug();
|
|
|
|
//
|
|
// Methods to define CPU registers (must be called before attached to debugger)
|
|
|
|
CPCRegister *AddPCRegister(const char *name, const char *group);
|
|
|
|
CAddrRegister *AddAddrRegister(const char *name, const char *group, unsigned id, GetInt32FPtr getFunc, SetInt32FPtr setFunc = NULL);
|
|
|
|
CIntRegister *AddInt8Register(const char *name, const char *group, unsigned id, GetInt8FPtr getFunc, SetInt8FPtr setFunc = NULL);
|
|
|
|
CIntRegister *AddInt16Register(const char *name, const char *group, unsigned id, GetInt16FPtr getFunc, SetInt16FPtr setFunc = NULL);
|
|
|
|
CIntRegister *AddInt32Register(const char *name, const char *group, unsigned id, GetInt32FPtr getFunc, SetInt32FPtr setFunc = NULL);
|
|
|
|
CIntRegister *AddInt64Register(const char *name, const char *group, unsigned id, GetInt64FPtr getFunc, SetInt64FPtr setFunc = NULL);
|
|
|
|
CStatusRegister *AddStatus8Register(const char *name, const char *group, unsigned id, const char *bitStr, GetInt8FPtr getFunc, SetInt8FPtr setFunc = NULL);
|
|
|
|
CStatusRegister *AddStatus16Register(const char *name, const char *group, unsigned id, const char *bitStr, GetInt16FPtr getFunc, SetInt16FPtr setFunc = NULL);
|
|
|
|
CStatusRegister *AddStatus32Register(const char *name, const char *group, unsigned id, const char *bitStr, GetInt32FPtr getFunc, SetInt32FPtr setFunc = NULL);
|
|
|
|
CFPointRegister *AddFPointRegister(const char *name, const char *group, unsigned id, GetFPointFPtr getFunc, SetFPointFPtr setFunc = NULL);
|
|
|
|
//
|
|
// Methods to add exceptions and interrupts (must be called before attached to debugger)
|
|
//
|
|
|
|
CException *AddException(const char *id, UINT16 code, const char *name);
|
|
|
|
CInterrupt *AddInterrupt(const char *id, UINT16 code, const char *name);
|
|
|
|
//
|
|
// Methods to define memory layout (must be called before attached to debugger)
|
|
//
|
|
|
|
CRegion *AddRegion(UINT32 start, UINT32 end, bool isCode, bool isReadOnly, const char *name);
|
|
|
|
CPortIO *AddPortIO(UINT16 portNum, unsigned dataSize, const char *name, const char *group);
|
|
|
|
CMappedIO *AddMappedIO(UINT32 addr, unsigned dataSize, const char *name, const char *group);
|
|
|
|
//
|
|
// Parsing and formatting methods
|
|
//
|
|
|
|
bool ParseData(const char *str, unsigned dataSize, UINT64 *data, bool registers = true);
|
|
|
|
void FormatData(char *str, unsigned dataSize, UINT64 data);
|
|
|
|
bool ParseAddress(const char *str, UINT32 *addr, bool customLabels = true, bool autoLabels = true, bool registers = true);
|
|
|
|
void FormatAddress(char *str, UINT32 addr, bool customLabels = false, ELabelFlags autoLabelFlags = LFNone);
|
|
|
|
void FormatJumpAddress(char *str, UINT32 jumpAddr, EOpFlags opFlags);
|
|
|
|
bool ParsePortNum(const char *str, UINT16 *portNum, bool customLabels = true, bool registers = true);
|
|
|
|
void FormatPortNum(char *str, UINT16 portNum, bool customLabels = false);
|
|
|
|
//
|
|
// Checking methods that hook into CPU emulation code
|
|
//
|
|
|
|
/*
|
|
* Should be called after every 8-bit read.
|
|
*/
|
|
void CheckRead8(UINT32 addr, UINT8 data);
|
|
|
|
/*
|
|
* Should be called after every 16-bit read.
|
|
*/
|
|
void CheckRead16(UINT32 addr, UINT16 data);
|
|
|
|
/*
|
|
* Should be called after every 32-bit read.
|
|
*/
|
|
void CheckRead32(UINT32 addr, UINT32 data);
|
|
|
|
/*
|
|
* Should be called after every 64-bit read.
|
|
*/
|
|
void CheckRead64(UINT32 addr, UINT64 data);
|
|
|
|
/*
|
|
* Should be called after every 8-bit write.
|
|
*/
|
|
void CheckWrite8(UINT32 addr, UINT8 data);
|
|
|
|
/*
|
|
* Should be called after every 16-bit write.
|
|
*/
|
|
void CheckWrite16(UINT32 addr, UINT16 data);
|
|
|
|
/*
|
|
* Should be called after every 32-bit write.
|
|
*/
|
|
void CheckWrite32(UINT32 addr, UINT32 data);
|
|
|
|
/*
|
|
* Should be called after every 64-bit write.
|
|
*/
|
|
void CheckWrite64(UINT32 addr, UINT64 data);
|
|
|
|
/*
|
|
* Should be called after every read from an I/O port.
|
|
*/
|
|
void CheckPortInput(UINT16 portNum, UINT64 data);
|
|
|
|
/*
|
|
* Should be called after every write to an I/O port.
|
|
*/
|
|
void CheckPortOutput(UINT16 portNum, UINT64 data);
|
|
|
|
/*
|
|
* Should be called by CPU when it becomes active and starts executing an instruction loop.
|
|
* This call is needed so that the debugger can handle multi-threading of CPUs.
|
|
*/
|
|
void CPUActive();
|
|
|
|
/*
|
|
* Should be called by CPU when it becomes inactive after having finished executing an instruction loop.
|
|
* This call is needed so that the debugger can handle multi-threading of CPUs.
|
|
*/
|
|
void CPUInactive();
|
|
|
|
/*
|
|
* Should be called by CPU before every instruction.
|
|
* If returns true, then PC may have been changed by user and/or an exception/interrupt may have forced, so CPU core should
|
|
* check for this and handle appropriately. Otherwise, it can continue to execute as normal.
|
|
*/
|
|
bool CPUExecute(UINT32 newPC, UINT32 newOpcode, UINT32 lastCycles);
|
|
|
|
/*
|
|
* Should be called by CPU whenever a CPU exception is raised (and before the exception handler is executed).
|
|
*/
|
|
virtual void CPUException(UINT16 exCode);
|
|
|
|
/*
|
|
* Should be called by CPU whenever a CPU interrupt is raised (and before the interrupt handler is executed).
|
|
*/
|
|
virtual void CPUInterrupt(UINT16 intCode);
|
|
|
|
void WaitCommand(EHaltReason reason);
|
|
|
|
#ifdef DEBUGGER_HASTHREAD
|
|
void ForceWait();
|
|
|
|
void WaitForHalt();
|
|
|
|
void ClearWait();
|
|
#endif // DEBUGGER_HASTHREAD
|
|
|
|
//
|
|
// Execution control
|
|
//
|
|
|
|
bool IsEnabled();
|
|
|
|
void SetEnabled(bool enabled);
|
|
|
|
void ForceBreak(bool user);
|
|
|
|
void ClearBreak();
|
|
|
|
void SetContinue();
|
|
|
|
void SetStepMode(EStepMode stepMode);
|
|
|
|
void SetCount(int count);
|
|
|
|
void SetUntil(UINT32 untilAddr);
|
|
|
|
bool SetPC(UINT32 newPC);
|
|
|
|
bool GenerateException(CException *ex);
|
|
|
|
bool GenerateInterrupt(CInterrupt *in);
|
|
|
|
//
|
|
// Register access
|
|
//
|
|
|
|
CRegister *GetRegister(const char *name);
|
|
|
|
//
|
|
// Exception access
|
|
//
|
|
|
|
CException *GetException(const char *id);
|
|
|
|
CException *GetException(UINT16 code);
|
|
|
|
//
|
|
// Interrupt access
|
|
//
|
|
|
|
CInterrupt *GetInterrupt(const char *id);
|
|
|
|
CInterrupt *GetInterrupt(UINT16 code);
|
|
|
|
//
|
|
// I/O access
|
|
//
|
|
|
|
CPortIO *GetPortIO(UINT16 portNum);
|
|
|
|
CMappedIO *GetMappedIO(UINT32 addr);
|
|
|
|
//
|
|
// Region access
|
|
//
|
|
|
|
CRegion *GetRegion(UINT32 addr);
|
|
|
|
//
|
|
// Label handling
|
|
//
|
|
|
|
CLabel *AddLabel(UINT32 addr, const char *name);
|
|
|
|
CLabel *GetLabel(UINT32 addr);
|
|
|
|
CLabel *GetLabel(const char *name);
|
|
|
|
bool RemoveLabel(const char *name);
|
|
|
|
bool RemoveLabel(UINT32 addr);
|
|
|
|
bool RemoveLabel(CLabel *label);
|
|
|
|
bool RemoveAllLabels();
|
|
|
|
//
|
|
// Comment handling
|
|
//
|
|
|
|
CComment *AddComment(UINT32 addr, const char *commentText);
|
|
|
|
CComment *GetComment(UINT32 addr);
|
|
|
|
bool RemoveComment(UINT32 addr);
|
|
|
|
bool RemoveComment(CComment *comment);
|
|
|
|
bool RemoveAllComments();
|
|
|
|
//
|
|
// Watch handling
|
|
//
|
|
|
|
CSimpleWatch *AddSimpleMemWatch(UINT32 addr, UINT32 size, bool trigRead, bool trigWrite);
|
|
|
|
CCountWatch *AddCountMemWatch(UINT32 addr, UINT32 size, bool trigRead, bool trigWrite, unsigned count);
|
|
|
|
CMatchWatch *AddMatchMemWatch(UINT32 addr, UINT32 size, bool trigRead, bool trigWrite, std::vector<UINT64> &dataSeq);
|
|
|
|
CPrintWatch *AddPrintMemWatch(UINT32 addr, UINT32 size, bool trigRead, bool trigWrite);
|
|
|
|
CCaptureWatch *AddCaptureMemWatch(UINT32 addr, UINT32 size, bool trigRead, bool trigWrite, unsigned maxLen);
|
|
|
|
bool RemoveAllMemWatches();
|
|
|
|
bool RemoveAllIOWatches();
|
|
|
|
bool RemoveMemWatch(UINT32 addr, unsigned size);
|
|
|
|
CWatch *GetMemWatch(UINT32 addr, unsigned size);
|
|
|
|
void AddWatch(CWatch *watch);
|
|
|
|
bool RemoveWatch(CWatch *watch);
|
|
|
|
//
|
|
// Breakpoint handling
|
|
//
|
|
|
|
CSimpleBreakpoint *AddSimpleBreakpoint(UINT32 addr);
|
|
|
|
CCountBreakpoint *AddCountBreakpoint(UINT32 addr, unsigned count);
|
|
|
|
CPrintBreakpoint *AddPrintBreakpoint(UINT32 addr);
|
|
|
|
void AddBreakpoint(CBreakpoint *bp);
|
|
|
|
CBreakpoint *GetBreakpoint(UINT32 addr);
|
|
|
|
bool RemoveBreakpoint(UINT32 addr);
|
|
|
|
bool RemoveBreakpoint(CBreakpoint *bp);
|
|
|
|
bool RemoveAllBreakpoints();
|
|
|
|
void UpdateBreakpointNums();
|
|
|
|
//
|
|
// Register monitor handling
|
|
//
|
|
|
|
CRegMonitor *AddRegMonitor(const char *regName);
|
|
|
|
CRegMonitor *GetRegMonitor(const char *regName);
|
|
|
|
void AddRegMonitor(CRegMonitor *regMon);
|
|
|
|
bool RemoveRegMonitor(const char *regName);
|
|
|
|
bool RemoveRegMonitor(CRegMonitor *regMon);
|
|
|
|
bool RemoveAllRegMonitors();
|
|
|
|
//
|
|
// Code analyser
|
|
//
|
|
|
|
CCodeAnalyser *GetCodeAnalyser();
|
|
|
|
//
|
|
// Memory searching
|
|
//
|
|
|
|
bool FindInMem(UINT32 start, UINT32 end, const char *str, bool matchCase, UINT32 &findAddr);
|
|
|
|
bool FindInMem(UINT32 start, UINT32 end, UINT8 *bytes, unsigned length, UINT32 &findAddr);
|
|
|
|
//
|
|
// Debugger state loading/saving
|
|
//
|
|
|
|
#ifdef DEBUGGER_HASBLOCKFILE
|
|
bool LoadState(CBlockFile *state);
|
|
|
|
bool SaveState(CBlockFile *state);
|
|
#endif // DEBUGGER_HASBLOCKFILE
|
|
|
|
//
|
|
// Public virtual methods for sub-class to implement
|
|
//
|
|
|
|
virtual void AttachToCPU() = 0;
|
|
|
|
virtual void DetachFromCPU() = 0;
|
|
|
|
virtual void DebuggerReset();
|
|
|
|
virtual void DebuggerPolled();
|
|
|
|
virtual UINT32 GetResetAddr() = 0;
|
|
|
|
virtual UINT64 ReadMem(UINT32 addr, unsigned dataSize);
|
|
|
|
virtual bool WriteMem(UINT32 addr, unsigned dataSize, UINT64 data);
|
|
|
|
virtual UINT64 ReadPort(UINT16 portNum);
|
|
|
|
virtual bool WritePort(UINT16 portNum, UINT64 data);
|
|
|
|
virtual int Disassemble(UINT32 addr, char *mnemonic, char *operands) = 0;
|
|
|
|
virtual int GetOpLength(UINT32 addr);
|
|
|
|
// Returns head (no more than 32-bits or min instr length) of full opcode for use with following methods
|
|
virtual UINT32 GetOpcode(UINT32 addr);
|
|
|
|
virtual EOpFlags GetOpFlags(UINT32 addr, UINT32 opcode) = 0;
|
|
|
|
virtual bool GetJumpAddr(UINT32 addr, UINT32 opcode, UINT32 &jumpAddr) = 0;
|
|
|
|
virtual bool GetJumpRetAddr(UINT32 addr, UINT32 opcode, UINT32 &retAddr) = 0;
|
|
|
|
virtual bool GetReturnAddr(UINT32 addr, UINT32 opcode, UINT32 &retAddr) = 0;
|
|
|
|
virtual bool GetHandlerAddr(CException *ex, UINT32 &handlerAddr) = 0;
|
|
|
|
virtual bool GetHandlerAddr(CInterrupt *in, UINT32 &handlerAddr) = 0;
|
|
};
|
|
|
|
//
|
|
// Inlined methods
|
|
//
|
|
|
|
inline bool CCPUDebug::ShiftAddress(UINT32 &addr, unsigned &dataSize, UINT64 &data, CAddressRef *ref)
|
|
{
|
|
UINT32 refAddr = ref->addr;
|
|
unsigned refSize = ref->size;
|
|
unsigned offset;
|
|
if (refAddr >= addr)
|
|
{
|
|
offset = refAddr - addr;
|
|
// dataSize will always be >= offset
|
|
dataSize -= offset;
|
|
if (dataSize <= refSize)
|
|
return false;
|
|
addr = refAddr + refSize;
|
|
dataSize -= refSize;
|
|
//data <<= (8 * (offset + refSize));
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
offset = refAddr + refSize - addr;
|
|
if (dataSize <= offset)
|
|
return false;
|
|
addr += offset;
|
|
dataSize -= offset;
|
|
//data <<= (8 * offset);
|
|
return true;
|
|
}
|
|
}
|
|
|
|
inline void CCPUDebug::CheckRead(UINT32 addr, unsigned dataSize, UINT64 data)
|
|
{
|
|
// TODO - currently assumes big-endian - should act according to this->bigEndian
|
|
|
|
// For reads larger than 1 byte, care is taken with mapped I/O or watches that overlap within the read region
|
|
while (dataSize > 0)
|
|
{
|
|
// Check if address is mapped I/O
|
|
CMappedIO *mappedIO = NULL;
|
|
if (m_mappedIOTable != NULL)
|
|
{
|
|
mappedIO = (CMappedIO*)m_mappedIOTable->Get(addr, dataSize);
|
|
if (mappedIO != NULL)
|
|
{
|
|
// Check with I/O if its watch is triggered
|
|
if (mappedIO->CheckInput(addr, dataSize, data))
|
|
IOWatchTriggered(mappedIO->watch, mappedIO, data, true);
|
|
|
|
// See if still have remaining data to check
|
|
if (!ShiftAddress(addr, dataSize, data, mappedIO))
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Check if address has a watch
|
|
CWatch *watch = NULL;
|
|
if (m_memWatchTable != NULL)
|
|
{
|
|
watch = (CWatch*)m_memWatchTable->Get(addr, dataSize);
|
|
if (watch != NULL)
|
|
{
|
|
// Check if watch is triggered
|
|
if (watch->CheckRead(addr, dataSize, data))
|
|
MemWatchTriggered(watch, addr, dataSize, data, true);
|
|
|
|
// See if still have remaining data to check
|
|
if (!ShiftAddress(addr, dataSize, data, watch))
|
|
return;
|
|
}
|
|
else if (mappedIO == NULL)
|
|
return;
|
|
}
|
|
else if (mappedIO == NULL)
|
|
return;
|
|
}
|
|
}
|
|
|
|
inline void CCPUDebug::CheckWrite(UINT32 addr, unsigned dataSize, UINT64 data)
|
|
{
|
|
// TODO - currently assumes big-endian - should act according to this->bigEndian
|
|
|
|
// For writes larger than 1 byte, care is taken with mapped I/O or watches that overlap within the written region
|
|
while (dataSize > 0)
|
|
{
|
|
// Check if writing to mapped I/O address
|
|
CMappedIO *mappedIO = NULL;
|
|
if (m_mappedIOTable != NULL)
|
|
{
|
|
mappedIO = (CMappedIO*)m_mappedIOTable->Get(addr, dataSize);
|
|
if (mappedIO != NULL)
|
|
{
|
|
// Check with I/O if its watch is triggered
|
|
if (mappedIO->CheckOutput(addr, dataSize, data))
|
|
IOWatchTriggered(mappedIO->watch, mappedIO, data, false);
|
|
|
|
// See if still have remaining data to check
|
|
if (!ShiftAddress(addr, dataSize, data, mappedIO))
|
|
return;
|
|
}
|
|
}
|
|
|
|
// Check if address has a watch
|
|
CWatch *watch = NULL;
|
|
if (m_memWatchTable != NULL)
|
|
{
|
|
watch = (CWatch*)m_memWatchTable->Get(addr, dataSize);
|
|
if (watch != NULL)
|
|
{
|
|
// Check if watch is triggered
|
|
if (watch->CheckWrite(addr, dataSize, data))
|
|
MemWatchTriggered(watch, addr, dataSize, data, false);
|
|
|
|
// See if still have remaining data to check
|
|
if (!ShiftAddress(addr, dataSize, data, watch))
|
|
return;
|
|
}
|
|
else if (mappedIO == NULL)
|
|
return;
|
|
}
|
|
else if (mappedIO == NULL)
|
|
return;
|
|
}
|
|
}
|
|
|
|
inline void CCPUDebug::MemWatchTriggered(CWatch *watch, UINT32 addr, unsigned dataSize, UINT64 data, bool read)
|
|
{
|
|
m_memWatchTriggered = watch;
|
|
debugger->MemWatchTriggered(watch, addr, dataSize, data, read);
|
|
watch->Reset();
|
|
m_break = true;
|
|
UpdateExecMasks();
|
|
}
|
|
|
|
inline void CCPUDebug::IOWatchTriggered(CWatch* watch, CIO *io, UINT64 data, bool read)
|
|
{
|
|
m_ioWatchTriggered = watch;
|
|
debugger->IOWatchTriggered(watch, io, data, read);
|
|
watch->Reset();
|
|
m_break = true;
|
|
UpdateExecMasks();
|
|
}
|
|
|
|
inline void CCPUDebug::CheckRead8(UINT32 addr, UINT8 data)
|
|
{
|
|
if ((addr&m_mem8AndMask) != m_mem8AndMask || (addr&m_mem8OrMask) != 0)
|
|
return;
|
|
|
|
// Check if reading from mapped I/O address
|
|
unsigned dataSize = 1;
|
|
if (m_mappedIOTable != NULL)
|
|
{
|
|
CMappedIO *mappedIO = (CMappedIO*)m_mappedIOTable->Get(addr);
|
|
if (mappedIO != NULL)
|
|
{
|
|
if (mappedIO->CheckInput(addr, dataSize, data))
|
|
IOWatchTriggered(mappedIO->watch, mappedIO, data, true);
|
|
return;
|
|
}
|
|
}
|
|
// Check if address has a watch
|
|
if (m_memWatchTable == NULL)
|
|
return;
|
|
CWatch *watch = (CWatch*)m_memWatchTable->Get(addr);
|
|
if (watch != NULL && watch->CheckRead(addr, dataSize, data))
|
|
MemWatchTriggered(watch, addr, dataSize, data, true);
|
|
}
|
|
|
|
inline void CCPUDebug::CheckRead16(UINT32 addr, UINT16 data)
|
|
{
|
|
if ((addr&m_mem16AndMask) == m_mem16AndMask && (addr&m_mem16OrMask) == 0)
|
|
CheckRead(addr, 2, data);
|
|
}
|
|
|
|
inline void CCPUDebug::CheckRead32(UINT32 addr, UINT32 data)
|
|
{
|
|
if ((addr&m_mem32AndMask) == m_mem32AndMask && (addr&m_mem32OrMask) == 0)
|
|
CheckRead(addr, 4, data);
|
|
}
|
|
|
|
inline void CCPUDebug::CheckRead64(UINT32 addr, UINT64 data)
|
|
{
|
|
if ((addr&m_mem64AndMask) == m_mem64AndMask && (addr&m_mem64OrMask) == 0)
|
|
CheckRead(addr, 8, data);
|
|
}
|
|
|
|
inline void CCPUDebug::CheckWrite8(UINT32 addr, UINT8 data)
|
|
{
|
|
if ((addr&m_mem8AndMask) != m_mem8AndMask || (addr&m_mem8OrMask) != 0)
|
|
return;
|
|
|
|
// Check if writing to mapped I/O address
|
|
unsigned dataSize = 1;
|
|
if (m_mappedIOTable != NULL)
|
|
{
|
|
CMappedIO *mappedIO = (CMappedIO*)m_mappedIOTable->Get(addr);
|
|
if (mappedIO != NULL)
|
|
{
|
|
if (mappedIO->CheckOutput(addr, dataSize, data))
|
|
IOWatchTriggered(mappedIO->watch, mappedIO, data, false);
|
|
return;
|
|
}
|
|
}
|
|
// Check if address has a watch
|
|
if (m_memWatchTable == NULL)
|
|
return;
|
|
CWatch *watch = (CWatch*)m_memWatchTable->Get(addr);
|
|
if (watch != NULL && watch->CheckWrite(addr, dataSize, data))
|
|
MemWatchTriggered(watch, addr, dataSize, data, false);
|
|
}
|
|
|
|
inline void CCPUDebug::CheckWrite16(UINT32 addr, UINT16 data)
|
|
{
|
|
if ((addr&m_mem16AndMask) == m_mem16AndMask && (addr&m_mem16OrMask) == 0)
|
|
CheckWrite(addr, 2, data);
|
|
}
|
|
|
|
inline void CCPUDebug::CheckWrite32(UINT32 addr, UINT32 data)
|
|
{
|
|
if ((addr&m_mem32AndMask) == m_mem32AndMask && (addr&m_mem32OrMask) == 0)
|
|
CheckWrite(addr, 4, data);
|
|
}
|
|
|
|
inline void CCPUDebug::CheckWrite64(UINT32 addr, UINT64 data)
|
|
{
|
|
if ((addr&m_mem64AndMask) == m_mem64AndMask && (addr&m_mem64OrMask) == 0)
|
|
CheckWrite(addr, 8, data);
|
|
}
|
|
|
|
inline void CCPUDebug::CheckPortInput(UINT16 portNum, UINT64 data)
|
|
{
|
|
if (portNum >= numPorts)
|
|
return;
|
|
CPortIO *port = m_portArray[portNum];
|
|
if (port != NULL && port->CheckInput(data))
|
|
IOWatchTriggered(port->watch, port, data, true);
|
|
}
|
|
|
|
inline void CCPUDebug::CheckPortOutput(UINT16 portNum, UINT64 data)
|
|
{
|
|
if (portNum >= numPorts)
|
|
return;
|
|
CPortIO *port = m_portArray[portNum];
|
|
if (port != NULL && port->CheckOutput(data))
|
|
IOWatchTriggered(port->watch, port, data, false);
|
|
}
|
|
|
|
inline bool CCPUDebug::CPUExecute(UINT32 newPC, UINT32 newOpcode, UINT32 lastCycles)
|
|
{
|
|
// Check if should check execution flow
|
|
if ((newPC&m_execAndMask) == m_execAndMask && (newPC&m_execOrMask) == 0)
|
|
return CheckExecute(newPC, newOpcode, lastCycles);
|
|
else
|
|
{
|
|
// If not, then just update instruction count, total cycles counts, pc and opcode
|
|
instrCount++;
|
|
totalCycles += lastCycles;
|
|
pc = newPC;
|
|
opcode = newOpcode;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
inline bool CCPUDebug::CheckExecute(UINT32 newPC, UINT32 newOpcode, UINT32 lastCycles)
|
|
{
|
|
// Check not just updating state
|
|
bool stepBreak, countBreak, untilBreak;
|
|
if (!m_stateUpdated)
|
|
{
|
|
// If so, then first check to see if any registers have changed from previous instruction before updating pc and opcode
|
|
if (m_numRegMons > 0)
|
|
{
|
|
for (int i = 0; i < m_numRegMons; i++)
|
|
{
|
|
CRegMonitor *regMon = m_regMonArray[i];
|
|
if (regMon->HasChanged())
|
|
{
|
|
m_regMonTriggered = regMon;
|
|
debugger->MonitorTriggered(regMon);
|
|
regMon->Reset();
|
|
m_break = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Now update instruction count, total cycles count, pc and opcode
|
|
instrCount++;
|
|
totalCycles += lastCycles;
|
|
pc = newPC;
|
|
opcode = newOpcode;
|
|
|
|
// Next check for breakpoints at new pc and opcode
|
|
if (m_bpTable != NULL)
|
|
{
|
|
CBreakpoint *bp = (CBreakpoint*)m_bpTable->Get(pc);
|
|
if (bp != NULL && bp->Check(pc, opcode))
|
|
{
|
|
m_bpReached = bp;
|
|
debugger->BreakpointReached(bp);
|
|
m_break = true;
|
|
}
|
|
}
|
|
|
|
// Check if currently implementing a step mode
|
|
if (m_step)
|
|
{
|
|
if (instrCount == 1)
|
|
stepBreak = true;
|
|
else
|
|
{
|
|
switch (m_stepMode)
|
|
{
|
|
case StepInto:
|
|
// Step-into always breaks
|
|
stepBreak = true;
|
|
break;
|
|
case StepOver:
|
|
// Step-over breaks if was not stepping over a jump or was stepping over and has returned from jump
|
|
stepBreak = !m_steppingOver || pc == m_stepOverAddr;
|
|
break;
|
|
case StepOut:
|
|
// Step-out steps over any jumps and breaks when it reaches a return or an exception/interrupt is raised
|
|
if (m_exRaised != NULL || m_intRaised != NULL)
|
|
stepBreak = true;
|
|
else if (m_steppingOver)
|
|
{
|
|
if (pc == m_stepOverAddr)
|
|
m_steppingOver = false;
|
|
stepBreak = false;
|
|
}
|
|
else
|
|
stepBreak = m_steppingOut && pc == m_stepOutAddr;
|
|
break;
|
|
default:
|
|
stepBreak = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
stepBreak = false;
|
|
|
|
// Lastly, check if counting instructions or if running until a given address
|
|
countBreak = m_count > 0 && --m_count == 0;
|
|
untilBreak = m_until && pc == m_untilAddr;
|
|
}
|
|
else
|
|
{
|
|
// Just updating state so update pc and opcode, but do not update instruction count
|
|
pc = newPC;
|
|
opcode = newOpcode;
|
|
|
|
stepBreak = false;
|
|
countBreak = false;
|
|
untilBreak = false;
|
|
}
|
|
|
|
// If a break has been forced, state was updated, stepping through code or have run a set number of instructions or to a
|
|
// given address then break now and wait for command from user
|
|
if (m_break || m_stateUpdated || stepBreak || countBreak || untilBreak)
|
|
{
|
|
// See if execution halt was caused by user manually breaking execution in some manner
|
|
EHaltReason reason = HaltNone;
|
|
if (m_stateUpdated) reason = (EHaltReason)(reason | HaltState);
|
|
if (m_breakUser) reason = (EHaltReason)(reason | HaltUser);
|
|
if (stepBreak) reason = (EHaltReason)(reason | HaltStep);
|
|
if (countBreak) reason = (EHaltReason)(reason | HaltCount);
|
|
if (untilBreak) reason = (EHaltReason)(reason | HaltUntil);
|
|
|
|
// Keep hold of breakpoint, if any, and its address so that can reset it later
|
|
UINT32 bpAddr = 0;
|
|
CBreakpoint *bpToReset = NULL;
|
|
if (m_bpReached != NULL)
|
|
{
|
|
bpAddr = m_bpReached->addr;
|
|
bpToReset = m_bpReached;
|
|
}
|
|
|
|
// Reset all control flags
|
|
m_stateUpdated = false;
|
|
m_step = false;
|
|
m_steppingOver = false;
|
|
m_steppingOut = false;
|
|
m_count = 0;
|
|
m_until = 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;
|
|
UpdateExecMasks();
|
|
|
|
// Wait for instruction from user
|
|
WaitCommand(reason);
|
|
|
|
// Reset breakpoint, if any
|
|
if (bpToReset != NULL && m_bpTable != NULL)
|
|
{
|
|
// Check breakpoint to reset was not deleted by user
|
|
CBreakpoint *bp = (CBreakpoint*)m_bpTable->Get(bpAddr);
|
|
if (bp == bpToReset)
|
|
bp->Reset();
|
|
}
|
|
|
|
// If stepping over, get step over address if available
|
|
if (m_step && m_stepMode == StepOver)
|
|
m_steppingOver = GetJumpRetAddr(pc, opcode, m_stepOverAddr);
|
|
}
|
|
|
|
// If stepping out, then make sure step over any jumps and if encounter a return instruction then break at return address
|
|
if (m_step && m_stepMode == StepOut)
|
|
{
|
|
if (!m_steppingOver)
|
|
m_steppingOver = GetJumpRetAddr(pc, opcode, m_stepOverAddr);
|
|
if (!m_steppingOver)
|
|
m_steppingOut = GetReturnAddr(pc, opcode, m_stepOutAddr);
|
|
}
|
|
|
|
return m_stateUpdated;
|
|
}
|
|
}
|
|
|
|
#endif // INCLUDED_CPUDEBUG_H
|
|
#endif // SUPERMODEL_DEBUGGER
|