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b52a08d533
There were three distinct mechanisms for signaling symbol changes in DolphinQt: `Host::NotifyMapLoaded`, `MenuBar::NotifySymbolsUpdated`, and `CodeViewWidget::SymbolsChanged`. The behavior of these signals has been consolidated into the new `Host::PPCSymbolsUpdated` signal, which can be emitted from anywhere in DolphinQt to properly update symbols everywhere in DolphinQt.
110 lines
3.4 KiB
C++
110 lines
3.4 KiB
C++
// Copyright 2017 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include "Core/IOS/MIOS.h"
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#include <cstring>
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#include <utility>
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#include "Common/Assert.h"
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#include "Common/CommonTypes.h"
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#include "Common/FileUtil.h"
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#include "Common/Logging/Log.h"
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#include "Common/MsgHandler.h"
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#include "Common/Swap.h"
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#include "Core/Config/MainSettings.h"
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#include "Core/ConfigManager.h"
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#include "Core/Core.h"
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#include "Core/DSPEmulator.h"
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#include "Core/HLE/HLE.h"
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#include "Core/HW/DSP.h"
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#include "Core/HW/DVD/DVDInterface.h"
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#include "Core/HW/Memmap.h"
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#include "Core/HW/SystemTimers.h"
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#include "Core/HW/Wiimote.h"
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#include "Core/Host.h"
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#include "Core/PowerPC/PPCSymbolDB.h"
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#include "Core/PowerPC/PowerPC.h"
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#include "Core/System.h"
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namespace IOS::HLE::MIOS
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{
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static void ReinitHardware(Core::System& system)
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{
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system.SetIsWii(false);
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// IOS clears mem2 and overwrites it with pseudo-random data (for security).
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auto& memory = system.GetMemory();
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std::memset(memory.GetEXRAM(), 0, memory.GetExRamSizeReal());
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// MIOS appears to only reset the DI and the PPC.
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// HACK However, resetting DI will reset the DTK config, which is set by the system menu
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// (and not by MIOS), causing games that use DTK to break. Perhaps MIOS doesn't actually
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// reset DI fully, in such a way that the DTK config isn't cleared?
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// system.GetDVDInterface().ResetDrive(true);
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system.GetPowerPC().Reset();
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Wiimote::ResetAllWiimotes();
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// Note: this is specific to Dolphin and is required because we initialised it in Wii mode.
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auto& dsp = system.GetDSP();
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dsp.Reinit(Config::Get(Config::MAIN_DSP_HLE));
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dsp.GetDSPEmulator()->Initialize(system.IsWii(), Config::Get(Config::MAIN_DSP_THREAD));
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system.GetSystemTimers().ChangePPCClock(SystemTimers::Mode::GC);
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}
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constexpr u32 ADDRESS_INIT_SEMAPHORE = 0x30f8;
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bool Load(Core::System& system)
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{
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auto& memory = system.GetMemory();
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ASSERT(Core::IsCPUThread());
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Core::CPUThreadGuard guard(system);
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memory.Write_U32(0x00000000, ADDRESS_INIT_SEMAPHORE);
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memory.Write_U32(0x09142001, 0x3180);
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ReinitHardware(system);
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NOTICE_LOG_FMT(IOS, "Reinitialised hardware.");
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auto& power_pc = system.GetPowerPC();
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auto& ppc_symbol_db = power_pc.GetSymbolDB();
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// Load symbols for the IPL if they exist.
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if (!ppc_symbol_db.IsEmpty())
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{
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ppc_symbol_db.Clear();
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Host_PPCSymbolsChanged();
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}
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if (ppc_symbol_db.LoadMap(guard, File::GetUserPath(D_MAPS_IDX) + "mios-ipl.map"))
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{
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::HLE::Clear();
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::HLE::PatchFunctions(system);
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Host_PPCSymbolsChanged();
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}
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const PowerPC::CoreMode core_mode = power_pc.GetMode();
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power_pc.SetMode(PowerPC::CoreMode::Interpreter);
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PowerPC::PowerPCState& ppc_state = power_pc.GetPPCState();
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ppc_state.msr.Hex = 0;
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ppc_state.pc = 0x3400;
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PowerPC::MSRUpdated(ppc_state);
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NOTICE_LOG_FMT(IOS, "Loaded MIOS and bootstrapped PPC.");
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// IOS writes 0 to 0x30f8 before bootstrapping the PPC. Once started, the IPL eventually writes
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// 0xdeadbeef there, then waits for it to be cleared by IOS before continuing.
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while (memory.Read_U32(ADDRESS_INIT_SEMAPHORE) != 0xdeadbeef)
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power_pc.SingleStep();
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power_pc.SetMode(core_mode);
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memory.Write_U32(0x00000000, ADDRESS_INIT_SEMAPHORE);
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NOTICE_LOG_FMT(IOS, "IPL ready.");
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system.SetIsMIOS(true);
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system.GetDVDInterface().UpdateRunningGameMetadata();
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SConfig::OnNewTitleLoad(guard);
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return true;
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}
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} // namespace IOS::HLE::MIOS
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