mirror of
https://github.com/Retropex/dolphin.git
synced 2025-05-29 05:22:30 +02:00
ff6b3eb9ac
This commit removes the last usage of NANDContentManager in IOS code. Another cleanup change is that loading ARM (IOS) binaries is now done by the kernel in the BootIOS syscall, instead of being handled as a special case in the MIOS code. This is more similar to how console works and lets us easily extend the same logic to other IOS binaries in the future, if we decide to actually load them.
87 lines
2.4 KiB
C++
87 lines
2.4 KiB
C++
// Copyright 2017 Dolphin Emulator Project
|
|
// Licensed under GPLv2+
|
|
// Refer to the license.txt file included.
|
|
|
|
#include "Core/IOS/MIOS.h"
|
|
|
|
#include <cstring>
|
|
#include <utility>
|
|
|
|
#include "Common/CommonTypes.h"
|
|
#include "Common/FileUtil.h"
|
|
#include "Common/Logging/Log.h"
|
|
#include "Common/MsgHandler.h"
|
|
#include "Common/Swap.h"
|
|
#include "Core/ConfigManager.h"
|
|
#include "Core/Core.h"
|
|
#include "Core/DSPEmulator.h"
|
|
#include "Core/HLE/HLE.h"
|
|
#include "Core/HW/DSP.h"
|
|
#include "Core/HW/DVD/DVDInterface.h"
|
|
#include "Core/HW/Memmap.h"
|
|
#include "Core/HW/SystemTimers.h"
|
|
#include "Core/PowerPC/PPCSymbolDB.h"
|
|
#include "Core/PowerPC/PowerPC.h"
|
|
|
|
namespace IOS
|
|
{
|
|
namespace HLE
|
|
{
|
|
namespace MIOS
|
|
{
|
|
static void ReinitHardware()
|
|
{
|
|
SConfig::GetInstance().bWii = false;
|
|
|
|
// IOS clears mem2 and overwrites it with pseudo-random data (for security).
|
|
std::memset(Memory::m_pEXRAM, 0, Memory::EXRAM_SIZE);
|
|
// MIOS appears to only reset the DI and the PPC.
|
|
DVDInterface::Reset();
|
|
PowerPC::Reset();
|
|
// Note: this is specific to Dolphin and is required because we initialised it in Wii mode.
|
|
DSP::Reinit(SConfig::GetInstance().bDSPHLE);
|
|
DSP::GetDSPEmulator()->Initialize(SConfig::GetInstance().bWii, SConfig::GetInstance().bDSPThread);
|
|
|
|
SystemTimers::ChangePPCClock(SystemTimers::Mode::GC);
|
|
}
|
|
|
|
constexpr u32 ADDRESS_INIT_SEMAPHORE = 0x30f8;
|
|
|
|
bool Load()
|
|
{
|
|
Memory::Write_U32(0x00000000, ADDRESS_INIT_SEMAPHORE);
|
|
Memory::Write_U32(0x09142001, 0x3180);
|
|
|
|
ReinitHardware();
|
|
NOTICE_LOG(IOS, "Reinitialised hardware.");
|
|
|
|
// Load symbols for the IPL if they exist.
|
|
g_symbolDB.Clear();
|
|
if (g_symbolDB.LoadMap(File::GetUserPath(D_MAPS_IDX) + "mios-ipl.map"))
|
|
{
|
|
::HLE::Clear();
|
|
::HLE::PatchFunctions();
|
|
}
|
|
|
|
const PowerPC::CoreMode core_mode = PowerPC::GetMode();
|
|
PowerPC::SetMode(PowerPC::CoreMode::Interpreter);
|
|
MSR = 0;
|
|
PC = 0x3400;
|
|
NOTICE_LOG(IOS, "Loaded MIOS and bootstrapped PPC.");
|
|
|
|
// IOS writes 0 to 0x30f8 before bootstrapping the PPC. Once started, the IPL eventually writes
|
|
// 0xdeadbeef there, then waits for it to be cleared by IOS before continuing.
|
|
while (Memory::Read_U32(ADDRESS_INIT_SEMAPHORE) != 0xdeadbeef)
|
|
PowerPC::SingleStep();
|
|
PowerPC::SetMode(core_mode);
|
|
|
|
Memory::Write_U32(0x00000000, ADDRESS_INIT_SEMAPHORE);
|
|
NOTICE_LOG(IOS, "IPL ready.");
|
|
SConfig::GetInstance().m_is_mios = true;
|
|
DVDInterface::UpdateRunningGameMetadata();
|
|
return true;
|
|
}
|
|
} // namespace MIOS
|
|
} // namespace HLE
|
|
} // namespace IOS
|