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// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/assert.h"
#include "core/arm/exclusive_monitor.h"
#include "core/core.h"
#include "core/core_cpu.h"
#include "core/core_timing.h"
#include "core/cpu_core_manager.h"
#include "core/gdbstub/gdbstub.h"
#include "core/settings.h"
namespace Core {
namespace {
void RunCpuCore(const System& system, Cpu& cpu_state) {
while (system.IsPoweredOn()) {
cpu_state.RunLoop(true);
}
}
} // Anonymous namespace
CpuCoreManager::CpuCoreManager(System& system) : system{system} {}
CpuCoreManager::~CpuCoreManager() = default;
void CpuCoreManager::Initialize() {
for (std::size_t index = 0; index < cores.size(); ++index) {
cores[index] = std::make_unique<Cpu>(system, index);
}
}
void CpuCoreManager::Shutdown() {
for (auto& cpu_core : cores) {
cpu_core.reset();
}
}
Cpu& CpuCoreManager::GetCore(std::size_t index) {
return *cores.at(index);
}
const Cpu& CpuCoreManager::GetCore(std::size_t index) const {
return *cores.at(index);
}
Cpu& CpuCoreManager::GetCurrentCore() {
// Otherwise, use single-threaded mode active_core variable
return *cores[active_core];
}
const Cpu& CpuCoreManager::GetCurrentCore() const {
// Otherwise, use single-threaded mode active_core variable
return *cores[active_core];
}
void CpuCoreManager::RunLoop(bool tight_loop) {
if (GDBStub::IsServerEnabled()) {
GDBStub::HandlePacket();
// If the loop is halted and we want to step, use a tiny (1) number of instructions to
// execute. Otherwise, get out of the loop function.
if (GDBStub::GetCpuHaltFlag()) {
if (GDBStub::GetCpuStepFlag()) {
tight_loop = false;
} else {
return;
}
}
}
auto& core_timing = system.CoreTiming();
core_timing.ResetRun();
bool keep_running{};
do {
keep_running = false;
for (active_core = 0; active_core < NUM_CPU_CORES; ++active_core) {
core_timing.SwitchContext(active_core);
if (core_timing.CanCurrentContextRun()) {
cores[active_core]->RunLoop(tight_loop);
}
keep_running |= core_timing.CanCurrentContextRun();
}
} while (keep_running);
if (GDBStub::IsServerEnabled()) {
GDBStub::SetCpuStepFlag(false);
}
}
} // namespace Core
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