Mesen-SX/Core/GsuDebugger.cpp
Sour 7ae6605e77 Debugger: Performance improvements + refactoring
-Reduce breakpoint check overhead
-Only run SPC/DSP when needed
-Only build disassembly cache when needed
2019-10-11 16:07:30 -04:00

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3.1 KiB
C++

#include "stdafx.h"
#include "GsuDebugger.h"
#include "DisassemblyInfo.h"
#include "Disassembler.h"
#include "BaseCartridge.h"
#include "Gsu.h"
#include "TraceLogger.h"
#include "CallstackManager.h"
#include "BreakpointManager.h"
#include "ExpressionEvaluator.h"
#include "MemoryManager.h"
#include "Debugger.h"
#include "Console.h"
#include "EmuSettings.h"
#include "MemoryAccessCounter.h"
GsuDebugger::GsuDebugger(Debugger* debugger)
{
_debugger = debugger;
_traceLogger = debugger->GetTraceLogger().get();
_disassembler = debugger->GetDisassembler().get();
_memoryAccessCounter = debugger->GetMemoryAccessCounter().get();
_gsu = debugger->GetConsole()->GetCartridge()->GetGsu();
_memoryManager = debugger->GetConsole()->GetMemoryManager().get();
_settings = debugger->GetConsole()->GetSettings().get();
_breakpointManager.reset(new BreakpointManager(debugger, CpuType::Gsu));
_step.reset(new StepRequest());
}
void GsuDebugger::Reset()
{
_prevOpCode = 0xFF;
}
void GsuDebugger::ProcessRead(uint32_t addr, uint8_t value, MemoryOperationType type)
{
if(type == MemoryOperationType::DummyRead) {
//Ignore all dummy reads for now
return;
}
AddressInfo addressInfo = _gsu->GetMemoryMappings()->GetAbsoluteAddress(addr);
MemoryOperationInfo operation { addr, value, type };
if(type == MemoryOperationType::ExecOpCode) {
if(_traceLogger->IsCpuLogged(CpuType::Gsu) || _settings->CheckDebuggerFlag(DebuggerFlags::GsuDebuggerEnabled)) {
GsuState gsuState = _gsu->GetState();
_disassembler->BuildCache(addressInfo, gsuState.SFR.GetFlagsHigh() & 0x13, CpuType::Gsu);
if(_traceLogger->IsCpuLogged(CpuType::Gsu)) {
DebugState debugState;
_debugger->GetState(debugState, true);
debugState.Gsu.R[15] = addr;
DisassemblyInfo disInfo = _disassembler->GetDisassemblyInfo(addressInfo);
_traceLogger->Log(CpuType::Gsu, debugState, disInfo);
}
}
_prevOpCode = value;
_prevProgramCounter = addr;
if(_step->StepCount > 0) {
_step->StepCount--;
}
}
_debugger->ProcessBreakConditions(_step->StepCount == 0, GetBreakpointManager(), operation, addressInfo);
_memoryAccessCounter->ProcessMemoryAccess(addressInfo, type, _memoryManager->GetMasterClock());
}
void GsuDebugger::ProcessWrite(uint32_t addr, uint8_t value, MemoryOperationType type)
{
AddressInfo addressInfo = _gsu->GetMemoryMappings()->GetAbsoluteAddress(addr);
MemoryOperationInfo operation { addr, value, type };
_debugger->ProcessBreakConditions(false, GetBreakpointManager(), operation, addressInfo);
_disassembler->InvalidateCache(addressInfo, CpuType::Gsu);
_memoryAccessCounter->ProcessMemoryAccess(addressInfo, type, _memoryManager->GetMasterClock());
}
void GsuDebugger::Run()
{
_step.reset(new StepRequest());
}
void GsuDebugger::Step(int32_t stepCount, StepType type)
{
StepRequest step;
switch(type) {
case StepType::StepOut:
case StepType::StepOver:
case StepType::Step: step.StepCount = stepCount; break;
case StepType::SpecificScanline:
case StepType::PpuStep:
break;
}
_step.reset(new StepRequest(step));
}
BreakpointManager* GsuDebugger::GetBreakpointManager()
{
return _breakpointManager.get();
}