mirror of
https://github.com/libretro/ppsspp.git
synced 2024-12-04 23:16:41 +00:00
150 lines
2.8 KiB
C++
150 lines
2.8 KiB
C++
// Copyright (c) 2012- PPSSPP Project.
|
|
|
|
// This program 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, version 2.0 or later versions.
|
|
|
|
// This program 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 2.0 for more details.
|
|
|
|
// A copy of the GPL 2.0 should have been included with the program.
|
|
// If not, see http://www.gnu.org/licenses/
|
|
|
|
// Official git repository and contact information can be found at
|
|
// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
|
|
|
|
#include "base/mutex.h"
|
|
#include "base/timeutil.h"
|
|
|
|
#include "../Globals.h"
|
|
#include "Core.h"
|
|
#include "MemMap.h"
|
|
#include "MIPS/MIPS.h"
|
|
|
|
#include "Host.h"
|
|
|
|
#include "Debugger/Breakpoints.h"
|
|
|
|
// HANDLE m_hStepEvent;
|
|
event m_hStepEvent;
|
|
recursive_mutex m_hStepMutex;
|
|
|
|
// This can be read and written from ANYWHERE.
|
|
volatile CoreState coreState = CORE_STEPPING;
|
|
|
|
void Core_ErrorPause()
|
|
{
|
|
coreState = CORE_ERROR;
|
|
}
|
|
|
|
void Core_Pause()
|
|
{
|
|
Core_EnableStepping(true);
|
|
}
|
|
|
|
void Core_Halt(const char *msg)
|
|
{
|
|
Core_EnableStepping(true);
|
|
ERROR_LOG(CPU, "CPU HALTED : %s",msg);
|
|
_dbg_update_();
|
|
}
|
|
|
|
void Core_Stop()
|
|
{
|
|
coreState = CORE_POWERDOWN;
|
|
m_hStepEvent.notify_one();
|
|
}
|
|
|
|
bool Core_IsStepping()
|
|
{
|
|
return coreState == CORE_STEPPING || coreState == CORE_POWERDOWN;
|
|
}
|
|
|
|
void Core_RunLoop()
|
|
{
|
|
currentMIPS->RunLoopUntil(0xFFFFFFFFFFFFFFFULL);
|
|
}
|
|
|
|
void Core_DoSingleStep()
|
|
{
|
|
m_hStepEvent.notify_one();
|
|
}
|
|
|
|
void Core_SingleStep()
|
|
{
|
|
currentMIPS->SingleStep();
|
|
}
|
|
|
|
|
|
// Some platforms, like Android, do not call this function but handle things on their own.
|
|
void Core_Run()
|
|
{
|
|
#if _DEBUG
|
|
host->UpdateDisassembly();
|
|
#endif
|
|
|
|
while (true)
|
|
{
|
|
reswitch:
|
|
switch(coreState)
|
|
{
|
|
case CORE_RUNNING:
|
|
//1: enter a fast runloop
|
|
Core_RunLoop();
|
|
break;
|
|
|
|
// We should never get here on Android.
|
|
case CORE_STEPPING:
|
|
//1: wait for step command..
|
|
m_hStepEvent.wait(m_hStepMutex);
|
|
if (coreState == CORE_POWERDOWN)
|
|
return;
|
|
if (coreState != CORE_STEPPING)
|
|
goto reswitch;
|
|
|
|
currentCPU = &mipsr4k;
|
|
Core_SingleStep();
|
|
//4: update disasm dialog
|
|
#ifdef _DEBUG
|
|
host->UpdateDisassembly();
|
|
host->UpdateMemView();
|
|
#endif
|
|
break;
|
|
|
|
case CORE_POWERDOWN:
|
|
case CORE_ERROR:
|
|
//1: Exit loop!!
|
|
return;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
void Core_EnableStepping(bool step)
|
|
{
|
|
if (step)
|
|
{
|
|
//PowerPC::Pause();
|
|
// Sleep(1);
|
|
sleep_ms(1);
|
|
#if _DEBUG
|
|
host->SetDebugMode(true);
|
|
#endif
|
|
coreState=CORE_STEPPING;
|
|
}
|
|
else
|
|
{
|
|
#if _DEBUG
|
|
host->SetDebugMode(false);
|
|
#endif
|
|
coreState = CORE_RUNNING;
|
|
//PowerPC::Start();
|
|
///SetEvent(m_hStepEvent); //TODO: pulseevent is flawed and can be lost
|
|
m_hStepEvent.notify_one();
|
|
|
|
}
|
|
|
|
}
|