mirror of
https://github.com/yuzu-emu/yuzu.git
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169 lines
4.6 KiB
C++
169 lines
4.6 KiB
C++
// Copyright 2014 Citra Emulator Project
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <memory>
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#include "audio_core/audio_core.h"
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#include "common/logging/log.h"
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#include "core/arm/arm_interface.h"
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#include "core/arm/dynarmic/arm_dynarmic.h"
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#include "core/arm/dyncom/arm_dyncom.h"
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#include "core/core.h"
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#include "core/core_timing.h"
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#include "core/gdbstub/gdbstub.h"
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#include "core/hle/kernel/kernel.h"
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#include "core/hle/kernel/memory.h"
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#include "core/hle/kernel/thread.h"
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#include "core/hle/service/service.h"
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#include "core/hw/hw.h"
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#include "core/loader/loader.h"
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#include "core/settings.h"
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#include "video_core/video_core.h"
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namespace Core {
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/*static*/ System System::s_instance;
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System::ResultStatus System::RunLoop(int tight_loop) {
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if (!cpu_core) {
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return ResultStatus::ErrorNotInitialized;
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}
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if (GDBStub::IsServerEnabled()) {
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GDBStub::HandlePacket();
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// If the loop is halted and we want to step, use a tiny (1) number of instructions to
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// execute. Otherwise, get out of the loop function.
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if (GDBStub::GetCpuHaltFlag()) {
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if (GDBStub::GetCpuStepFlag()) {
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GDBStub::SetCpuStepFlag(false);
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tight_loop = 1;
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} else {
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return ResultStatus::Success;
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}
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}
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}
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// If we don't have a currently active thread then don't execute instructions,
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// instead advance to the next event and try to yield to the next thread
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if (Kernel::GetCurrentThread() == nullptr) {
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LOG_TRACE(Core_ARM11, "Idling");
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CoreTiming::Idle();
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CoreTiming::Advance();
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PrepareReschedule();
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} else {
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cpu_core->Run(tight_loop);
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}
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HW::Update();
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Reschedule();
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return ResultStatus::Success;
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}
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System::ResultStatus System::SingleStep() {
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return RunLoop(1);
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}
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System::ResultStatus System::Load(EmuWindow* emu_window, const std::string& filepath) {
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app_loader = Loader::GetLoader(filepath);
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if (!app_loader) {
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LOG_CRITICAL(Core, "Failed to obtain loader for %s!", filepath.c_str());
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return ResultStatus::ErrorGetLoader;
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}
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boost::optional<u32> system_mode{app_loader->LoadKernelSystemMode()};
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if (!system_mode) {
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LOG_CRITICAL(Core, "Failed to determine system mode!");
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return ResultStatus::ErrorSystemMode;
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}
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ResultStatus init_result{Init(emu_window, system_mode.get())};
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if (init_result != ResultStatus::Success) {
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LOG_CRITICAL(Core, "Failed to initialize system (Error %i)!", init_result);
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System::Shutdown();
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return init_result;
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}
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const Loader::ResultStatus load_result{app_loader->Load()};
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if (Loader::ResultStatus::Success != load_result) {
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LOG_CRITICAL(Core, "Failed to load ROM (Error %i)!", load_result);
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System::Shutdown();
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switch (load_result) {
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case Loader::ResultStatus::ErrorEncrypted:
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return ResultStatus::ErrorLoader_ErrorEncrypted;
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case Loader::ResultStatus::ErrorInvalidFormat:
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return ResultStatus::ErrorLoader_ErrorInvalidFormat;
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default:
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return ResultStatus::ErrorLoader;
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}
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}
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return ResultStatus::Success;
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}
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void System::PrepareReschedule() {
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cpu_core->PrepareReschedule();
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reschedule_pending = true;
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}
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PerfStats::Results System::GetAndResetPerfStats() {
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return perf_stats.GetAndResetStats(CoreTiming::GetGlobalTimeUs());
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}
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void System::Reschedule() {
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if (!reschedule_pending) {
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return;
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}
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reschedule_pending = false;
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Kernel::Reschedule();
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}
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System::ResultStatus System::Init(EmuWindow* emu_window, u32 system_mode) {
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Memory::Init();
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if (Settings::values.use_cpu_jit) {
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cpu_core = std::make_unique<ARM_Dynarmic>(USER32MODE);
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} else {
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cpu_core = std::make_unique<ARM_DynCom>(USER32MODE);
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}
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CoreTiming::Init();
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HW::Init();
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Kernel::Init(system_mode);
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Service::Init();
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AudioCore::Init();
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GDBStub::Init();
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if (!VideoCore::Init(emu_window)) {
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return ResultStatus::ErrorVideoCore;
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}
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LOG_DEBUG(Core, "Initialized OK");
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// Reset counters and set time origin to current frame
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GetAndResetPerfStats();
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perf_stats.BeginSystemFrame();
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return ResultStatus::Success;
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}
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void System::Shutdown() {
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GDBStub::Shutdown();
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AudioCore::Shutdown();
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VideoCore::Shutdown();
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Service::Shutdown();
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Kernel::Shutdown();
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HW::Shutdown();
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CoreTiming::Shutdown();
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cpu_core = nullptr;
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app_loader = nullptr;
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LOG_DEBUG(Core, "Shutdown OK");
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}
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} // namespace
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