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https://github.com/dolphin-emu/dolphin.git
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8ea6bef98f
While trying to work on adding audiodump support for CLI, I was alerted that it was important to first try moving the DSP configs to the new config before continuing, as that makes it substantially easier to write clean code to add such a feature. This commit aims to allow for Dolphin to only rely on the new config for DSP-related settings.
94 lines
2.9 KiB
C++
94 lines
2.9 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/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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namespace IOS::HLE::MIOS
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{
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static void ReinitHardware()
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{
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SConfig::GetInstance().bWii = false;
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// IOS clears mem2 and overwrites it with pseudo-random data (for security).
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std::memset(Memory::m_pEXRAM, 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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// DVDInterface::ResetDrive(true);
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PowerPC::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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DSP::Reinit(Config::Get(Config::MAIN_DSP_HLE));
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DSP::GetDSPEmulator()->Initialize(SConfig::GetInstance().bWii,
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Config::Get(Config::MAIN_DSP_THREAD));
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SystemTimers::ChangePPCClock(SystemTimers::Mode::GC);
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}
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constexpr u32 ADDRESS_INIT_SEMAPHORE = 0x30f8;
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bool Load()
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{
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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();
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NOTICE_LOG_FMT(IOS, "Reinitialised hardware.");
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// Load symbols for the IPL if they exist.
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if (!g_symbolDB.IsEmpty())
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{
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g_symbolDB.Clear();
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Host_NotifyMapLoaded();
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}
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if (g_symbolDB.LoadMap(File::GetUserPath(D_MAPS_IDX) + "mios-ipl.map"))
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{
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::HLE::Clear();
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::HLE::PatchFunctions();
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Host_NotifyMapLoaded();
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}
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const PowerPC::CoreMode core_mode = PowerPC::GetMode();
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PowerPC::SetMode(PowerPC::CoreMode::Interpreter);
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MSR.Hex = 0;
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PC = 0x3400;
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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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PowerPC::SingleStep();
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PowerPC::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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SConfig::GetInstance().m_is_mios = true;
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DVDInterface::UpdateRunningGameMetadata();
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SConfig::OnNewTitleLoad();
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return true;
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}
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} // namespace IOS::HLE::MIOS
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