mirror of
https://github.com/RetroDECK/Supermodel.git
synced 2024-11-22 22:05:38 +00:00
525 lines
12 KiB
C++
525 lines
12 KiB
C++
/**
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** Supermodel
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** A Sega Model 3 Arcade Emulator.
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** Copyright 2011 Bart Trzynadlowski, Nik Henson
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**
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** This file is part of Supermodel.
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**
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** Supermodel is free software: you can redistribute it and/or modify it under
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** the terms of the GNU General Public License as published by the Free
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** Software Foundation, either version 3 of the License, or (at your option)
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** any later version.
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**
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** Supermodel is distributed in the hope that it will be useful, but WITHOUT
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** ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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** FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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** more details.
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**
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** You should have received a copy of the GNU General Public License along
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** with Supermodel. If not, see <http://www.gnu.org/licenses/>.
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**/
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/*
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* Debugger.cpp
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*/
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#ifdef SUPERMODEL_DEBUGGER
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#include "Debugger.h"
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#include "CPUDebug.h"
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#include <cctype>
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#include <string>
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namespace Debugger
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{
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unsigned CDebugger::GetDataSize(UINT64 data)
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{
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if (data <= 0xFFULL) return 1;
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else if (data <= 0xFFFFULL) return 2;
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else if (data <= 0xFFFFFFULL) return 3;
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else if (data <= 0xFFFFFFFFULL) return 4;
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else if (data <= 0xFFFFFFFFFFULL) return 5;
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else if (data <= 0xFFFFFFFFFFFFULL) return 6;
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else if (data <= 0xFFFFFFFFFFFFFFULL) return 7;
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else return 8;
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}
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const char *CDebugger::GetSizeString(unsigned dataSize)
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{
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switch (dataSize)
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{
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case 1: return "8-bit";
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case 2: return "16-bit";
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case 3: return "24-bit";
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case 4: return "32-bit";
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case 5: return "40-bit";
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case 6: return "48-bit";
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case 7: return "56-bit";
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case 8: return "64-bit";
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default: return "";
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}
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}
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UINT64 CDebugger::MaskData(unsigned dataSize, UINT64 data)
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{
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switch (dataSize)
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{
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case 0: return 0;
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case 1: return data&0xFFULL;
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case 2: return data&0xFFFFULL;
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case 3: return data&0xFFFFFFULL;
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case 4: return data&0xFFFFFFFFULL;
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case 5: return data&0xFFFFFFFFFFULL;
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case 6: return data&0xFFFFFFFFFFFFULL;
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case 7: return data&0xFFFFFFFFFFFFFFULL;
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default: return data;
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}
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}
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UINT64 CDebugger::GetSlottedData(UINT32 addr, unsigned dataSize, UINT64 data, UINT32 slotAddr, unsigned slotDataSize)
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{
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if (addr == slotAddr && dataSize == slotDataSize)
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{
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// Data perfectly aligned with slot
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return MaskData(slotDataSize, data);
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}
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unsigned overlap, shift;
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if (addr >= slotAddr)
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{
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// Data starts after slot beginning
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overlap = slotAddr + slotDataSize - addr;
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if (overlap < dataSize)
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{
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// Data ends after slot end
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shift = dataSize - overlap;
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return MaskData(overlap, data>>(8 * shift));
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}
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else
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{
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// Data falls completely inside slot
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shift = overlap - dataSize;
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return MaskData(dataSize, data)<<(8 * shift);
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}
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}
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else
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{
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// Data starts before slot beginning
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overlap = addr + dataSize - slotAddr;
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if (overlap < slotDataSize)
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{
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// Data ends before slot end
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shift = slotDataSize - overlap;
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return MaskData(overlap, data)<<(8 * shift);
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}
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else
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{
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// Slot lies completely inside data
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shift = overlap - slotDataSize;
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return MaskData(slotDataSize, data>>(8 * shift));
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}
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}
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}
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bool CDebugger::ParseInt(const char *str, int *val)
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{
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return sscanf(str, "%d", val) == 1;
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}
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CDebugger::CDebugger() : m_exit(false), m_pause(false), m_break(false), m_breakUser(false),
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frameCount(0), logDebug(true), logInfo(true), logError(true)
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{
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#ifdef DEBUGGER_HASTHREAD
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m_mutex = CThread::CreateMutex();
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m_primaryCPU = NULL;
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#endif // DEBUGGER_HASTHREAD
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}
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CDebugger::~CDebugger()
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{
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DeleteCPUs();
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}
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void CDebugger::DeleteCPUs()
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{
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for (vector<CCPUDebug*>::iterator it = cpus.begin(); it != cpus.end(); it++)
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delete *it;
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cpus.clear();
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}
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void CDebugger::AddCPU(CCPUDebug *cpu)
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{
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cpu->AttachToDebugger(this);
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cpus.push_back(cpu);
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if (m_break)
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cpu->ForceBreak(m_breakUser);
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}
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void CDebugger::RemoveCPU(CCPUDebug *cpu)
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{
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cpu->DetachFromDebugger(this);
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vector<CCPUDebug*>::iterator it = find(cpus.begin(), cpus.end(), cpu);
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if (it != cpus.end())
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cpus.erase(it);
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}
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CCPUDebug *CDebugger::GetCPU(const char *name)
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{
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for (vector<CCPUDebug*>::iterator it = cpus.begin(); it != cpus.end(); it++)
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{
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if (stricmp(name, (*it)->name) == 0)
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return *it;
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}
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return NULL;
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}
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void CDebugger::SetExit()
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{
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m_exit = true;
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for (vector<CCPUDebug*>::iterator it = cpus.begin(); it != cpus.end(); it++)
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{
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//(*it)->RemoveAllExceptionTraps();
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(*it)->RemoveAllMemWatches();
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(*it)->RemoveAllIOWatches();
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(*it)->RemoveAllBreakpoints();
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(*it)->RemoveAllRegMonitors();
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(*it)->SetContinue();
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}
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}
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void CDebugger::SetPause(bool pause)
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{
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m_pause = pause;
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}
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void CDebugger::ForceBreak(bool user)
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{
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m_break = true;
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m_breakUser = user;
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for (vector<CCPUDebug*>::iterator it = cpus.begin(); it != cpus.end(); it++)
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(*it)->ForceBreak(user);
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}
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void CDebugger::ClearBreak()
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{
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m_break = false;
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m_breakUser = false;
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for (vector<CCPUDebug*>::iterator it = cpus.begin(); it != cpus.end(); it++)
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(*it)->ClearBreak();
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}
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#ifdef DEBUGGER_HASTHREAD
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bool CDebugger::MakePrimary(CCPUDebug *cpu)
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{
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m_mutex->Lock();
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bool isPrimary = m_primaryCPU == NULL || m_primaryCPU == cpu;
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if (isPrimary)
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m_primaryCPU = cpu;
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m_mutex->Unlock();
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if (isPrimary)
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{
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for (vector<CCPUDebug*>::iterator it = cpus.begin(); it != cpus.end(); it++)
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{
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if ((*it) != m_primaryCPU)
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(*it)->ForceWait();
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}
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for (vector<CCPUDebug*>::iterator it = cpus.begin(); it != cpus.end(); it++)
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{
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if ((*it) != m_primaryCPU)
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(*it)->WaitForHalt();
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}
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}
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return isPrimary;
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}
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void CDebugger::ReleasePrimary()
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{
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m_mutex->Lock();
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m_primaryCPU = NULL;
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for (vector<CCPUDebug*>::iterator it = cpus.begin(); it != cpus.end(); it++)
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{
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if ((*it) == m_primaryCPU)
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(*it)->ClearBreak();
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else
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(*it)->ClearWait();
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}
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m_mutex->Unlock();
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}
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#endif // DEBUGGER_HASTHREAD
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void CDebugger::Attach()
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{
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AddCPUs();
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for (vector<CCPUDebug*>::iterator it = cpus.begin(); it != cpus.end(); it++)
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(*it)->AttachToCPU();
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}
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void CDebugger::Detach()
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{
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for (vector<CCPUDebug*>::iterator it = cpus.begin(); it != cpus.end(); it++)
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(*it)->DetachFromCPU();
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DeleteCPUs();
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}
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void CDebugger::Reset()
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{
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frameCount = 0;
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for (vector<CCPUDebug*>::iterator it = cpus.begin(); it != cpus.end(); it++)
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(*it)->DebuggerReset();
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}
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void CDebugger::Poll()
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{
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frameCount++;
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for (vector<CCPUDebug*>::iterator it = cpus.begin(); it != cpus.end(); it++)
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(*it)->DebuggerPolled();
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}
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void CDebugger::PrintEvent(CCPUDebug *cpu, const char *fmt, ...)
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{
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va_list vl;
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va_start(vl, fmt);
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Log(cpu, NULL, fmt, vl);
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va_end(vl);
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}
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#ifdef DEBUGGER_HASLOGGER
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void CDebugger::DebugLog(const char *fmt, va_list vl)
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{
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if (logDebug)
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Log(NULL, "Debug", fmt, vl);
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}
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void CDebugger::InfoLog(const char *fmt, va_list vl)
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{
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if (logInfo)
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Log(NULL, "Info", fmt, vl);
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}
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void CDebugger::ErrorLog(const char *fmt, va_list vl)
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{
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if (logError)
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Log(NULL, "Error", fmt, vl);
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}
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#endif // DEBUGGER_HASLOGGER
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bool CDebugger::ParseData(const char *str, EFormat format, unsigned dataSize, UINT64 *data)
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{
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unsigned i;
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char upperStr[255];
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const char *p;
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switch (format)
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{
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case Hex:
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case Hex0x:
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case HexDollar:
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case HexPostH:
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for (i = 0; str[i] && i < 254; i++)
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upperStr[i] = toupper(str[i]);
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upperStr[i] = '\0';
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if (sscanf(upperStr, "%llX", data) != 1 &&
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sscanf(upperStr, "0x%llX", data) != 1 &&
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sscanf(upperStr, "$%llX", data) != 1 &&
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sscanf(upperStr, "%llXH", data) != 1)
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return false;
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break;
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case Decimal:
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if (sscanf(str, "%llu", data) != 1)
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return false;
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break;
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case Binary:
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p = str;
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while (*p != '\0' && *p != '0' && *p != '1')
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p++;
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if (*p == '\0')
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return false;
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*data = 0;
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for (i = 0; i < dataSize * 8; i++)
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{
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if (*p == '1')
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*data |= 1;
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else if (*p != '0')
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break;
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*data <<= 1;
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p++;
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}
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break;
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case ASCII:
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// TODO
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return false;
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default:
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return false;
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}
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switch (dataSize)
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{
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case 0: return 0;
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case 1: return *data <= (UINT64)0xFF;
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case 2: return *data <= (UINT64)0xFFFF;
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case 3: return *data <= (UINT64)0xFFFFFF;
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case 4: return *data <= (UINT64)0xFFFFFFFF;
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case 5: return *data <= (UINT64)0xFFFFFFFFFF;
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case 6: return *data <= (UINT64)0xFFFFFFFFFFFF;
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case 7: return *data <= (UINT64)0xFFFFFFFFFFFFFF;
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default: return true;
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}
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}
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void CDebugger::FormatData(char *str, EFormat format, unsigned dataSize, INT64 data)
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{
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if (data >= 0)
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FormatData(str, format, dataSize, (UINT64)data);
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else
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{
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*str++ = '-';
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FormatData(str, format, dataSize, (UINT64)(data >= 0 ? data : -data)); // No portable abs64 available
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}
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}
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void CDebugger::FormatData(char *str, EFormat format, unsigned dataSize, UINT64 data)
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{
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data = MaskData(dataSize, data);
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unsigned i;
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switch (format)
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{
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case Hex: sprintf(str, "%0*llX", (int)dataSize * 2, data); break;
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case Hex0x: sprintf(str, "0x%0*llX", (int)dataSize * 2, data); break;
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case HexDollar: sprintf(str, "$%0*llX", (int)dataSize * 2, data); break;
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case HexPostH: sprintf(str, "%0*llXh", (int)dataSize * 2, data); break;
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case Decimal: sprintf(str, "%llu", data); break;
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case Binary:
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str += dataSize * 8;
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*str-- = '\0';
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for (i = 0; i < dataSize * 8; i++)
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{
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*str-- = ((data&1) ? '1' : '0');
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data >>= 1;
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}
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break;
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case ASCII:
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for (i = 0; i < dataSize; i++)
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{
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*str++ = (char)(data & 0xFF);
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data >>= 8;
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}
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*str++ = '\0';
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break;
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default:
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str[0] = '\0';
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break;
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}
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}
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bool CDebugger::HasState()
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{
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for (vector<CCPUDebug*>::iterator it = cpus.begin(); it != cpus.end(); it++)
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{
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if ((*it)->labels.size() + (*it)->comments.size() > 0)
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return true;
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}
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return false;
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}
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bool CDebugger::LoadState(const char *fileName)
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{
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#ifdef DEBUGGER_HASBLOCKFILE
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// Open file and find header
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CBlockFile state;
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if (state.Load(fileName) != OKAY)
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return false;
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if (state.FindBlock("Debugger State") != OKAY)
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{
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state.Close();
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return false;
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}
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// Check version in header matches
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unsigned version;
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state.Read(&version, sizeof(version));
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if (version != DEBUGGER_STATEFILE_VERSION)
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{
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state.Close();
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return false;
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}
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// Load debugger state
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if (!LoadState(&state))
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{
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state.Close();
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return false;
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}
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// Load state for each CPU
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for (vector<CCPUDebug*>::iterator it = cpus.begin(); it != cpus.end(); it++)
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{
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if (!(*it)->LoadState(&state))
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{
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state.Close();
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return false;
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}
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}
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state.Close();
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return true;
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#else
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return false;
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#endif // DEBUGGER_HASBLOCKFILE
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}
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bool CDebugger::SaveState(const char *fileName)
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{
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#ifdef DEBUGGER_HASBLOCKFILE
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// Create file with header
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CBlockFile state;
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if (state.Create(fileName, "Debugger State", __FILE__) != OKAY)
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return false;
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// Write out version in header
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unsigned version = DEBUGGER_STATEFILE_VERSION;
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state.Write(&version, sizeof(version));
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// Save debugger state
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if (!SaveState(&state))
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{
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state.Close();
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return false;
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}
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// Save state for each CPU
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for (vector<CCPUDebug*>::iterator it = cpus.begin(); it != cpus.end(); it++)
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{
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if (!(*it)->SaveState(&state))
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return false;
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}
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state.Close();
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return true;
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#else
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return false;
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#endif // DEBUGGER_HASBLOCKFILE
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}
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#ifdef DEBUGGER_HASBLOCKFILE
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bool CDebugger::LoadState(CBlockFile *state)
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{
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return true;
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}
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bool CDebugger::SaveState(CBlockFile *state)
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{
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return true;
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}
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#endif
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}
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#endif // SUPERMODEL_DEBUGGER
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