/
MemoryVirtualMem.cpp
executable file
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MemoryVirtualMem.cpp
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#include "stdafx.h"
#include <Project64-core\N64System\Mips\MemoryVirtualMem.h>
#include <Project64-core\N64System\SystemGlobals.h>
#include <Project64-core\N64System\N64Rom.h>
#include <Project64-core\N64System\N64System.h>
#include <Project64-core\N64System\Recompiler\RecompilerCodeLog.h>
#include <Project64-core\N64System\Mips\OpcodeName.h>
#include <Project64-core\N64System\Mips\Disk.h>
#include <Project64-core\ExceptionHandler.h>
#include <stdio.h>
#include <Common/MemoryManagement.h>
uint8_t * CMipsMemoryVM::m_Reserve1 = nullptr;
uint8_t * CMipsMemoryVM::m_Reserve2 = nullptr;
uint32_t CMipsMemoryVM::m_MemLookupAddress = 0;
MIPS_DWORD CMipsMemoryVM::m_MemLookupValue;
bool CMipsMemoryVM::m_MemLookupValid = true;
uint32_t CMipsMemoryVM::RegModValue;
#pragma warning(disable:4355) // Disable 'this' : used in base member initializer list
CMipsMemoryVM::CMipsMemoryVM(CRegisters & Reg, bool SavesReadOnly) :
CPifRam(SavesReadOnly),
CFlashram(SavesReadOnly),
CSram(SavesReadOnly),
CDMA(*this, *this),
m_Reg(Reg),
m_RomMapped(false),
m_PeripheralInterfaceHandler(*this, Reg),
m_RDRAMInterfaceHandler(Reg),
m_Rom(nullptr),
m_RomSize(0),
m_RomWrittenTo(false),
m_RomWroteValue(0),
m_HalfLine(0),
m_HalfLineCheck(false),
m_FieldSerration(0),
m_TLB_ReadMap(nullptr),
m_TLB_WriteMap(nullptr),
m_RDRAM(nullptr),
m_DMEM(nullptr),
m_IMEM(nullptr),
m_DDRomMapped(false),
m_DDRom(nullptr),
m_DDRomSize(0)
{
g_Settings->RegisterChangeCB(Game_RDRamSize, this, (CSettings::SettingChangedFunc)RdramChanged);
}
uint32_t swap32by8(uint32_t word)
{
const uint32_t swapped =
#if defined(_MSC_VER)
_byteswap_ulong(word)
#elif defined(__GNUC__)
__builtin_bswap32(word)
#else
(word & 0x000000FFul) << 24
| (word & 0x0000FF00ul) << 8
| (word & 0x00FF0000ul) >> 8
| (word & 0xFF000000ul) >> 24
#endif
;
return (swapped & 0xFFFFFFFFul);
}
CMipsMemoryVM::~CMipsMemoryVM()
{
g_Settings->UnregisterChangeCB(Game_RDRamSize, this, (CSettings::SettingChangedFunc)RdramChanged);
FreeMemory();
}
void CMipsMemoryVM::Reset(bool /*EraseMemory*/)
{
if (m_TLB_ReadMap)
{
size_t address;
memset(m_TLB_ReadMap, 0, 0xFFFFF * sizeof(size_t));
memset(m_TLB_WriteMap, 0, 0xFFFFF * sizeof(size_t));
for (address = 0x80000000; address < 0xC0000000; address += 0x1000)
{
m_TLB_ReadMap[address >> 12] = ((size_t)m_RDRAM + (address & 0x1FFFFFFF)) - address;
m_TLB_WriteMap[address >> 12] = ((size_t)m_RDRAM + (address & 0x1FFFFFFF)) - address;
}
if (g_Settings->LoadDword(Rdb_TLB_VAddrStart) != 0)
{
size_t Start = g_Settings->LoadDword(Rdb_TLB_VAddrStart); //0x7F000000;
size_t Len = g_Settings->LoadDword(Rdb_TLB_VAddrLen); //0x01000000;
size_t PAddr = g_Settings->LoadDword(Rdb_TLB_PAddrStart); //0x10034b30;
size_t End = Start + Len;
for (address = Start; address < End; address += 0x1000)
{
m_TLB_ReadMap[address >> 12] = ((size_t)m_RDRAM + (address - Start + PAddr)) - address;
m_TLB_WriteMap[address >> 12] = ((size_t)m_RDRAM + (address - Start + PAddr)) - address;
}
}
}
}
void CMipsMemoryVM::ReserveMemory()
{
m_Reserve1 = (uint8_t *)AllocateAddressSpace(0x20000000, (void *)g_Settings->LoadDword(Setting_FixedRdramAddress));
m_Reserve2 = (uint8_t *)AllocateAddressSpace(0x04002000);
}
void CMipsMemoryVM::FreeReservedMemory()
{
if (m_Reserve1)
{
FreeAddressSpace(m_Reserve1, 0x20000000);
m_Reserve1 = nullptr;
}
if (m_Reserve2)
{
FreeAddressSpace(m_Reserve2, 0x20000000);
m_Reserve2 = nullptr;
}
}
bool CMipsMemoryVM::Initialize(bool SyncSystem)
{
if (m_RDRAM != nullptr)
{
return true;
}
if (!SyncSystem && m_RDRAM == nullptr && m_Reserve1 != nullptr)
{
m_RDRAM = m_Reserve1;
m_Reserve1 = nullptr;
}
if (SyncSystem && m_RDRAM == nullptr && m_Reserve2 != nullptr)
{
m_RDRAM = m_Reserve2;
m_Reserve2 = nullptr;
}
if (m_RDRAM == nullptr)
{
m_RDRAM = (uint8_t *)AllocateAddressSpace(0x20000000);
}
if (m_RDRAM == nullptr)
{
WriteTrace(TraceN64System, TraceError, "Failed to reserve RDRAM (Size: 0x%X)", 0x20000000);
FreeMemory();
return false;
}
m_AllocatedRdramSize = g_Settings->LoadDword(Game_RDRamSize);
if (CommitMemory(m_RDRAM, m_AllocatedRdramSize, MEM_READWRITE) == nullptr)
{
WriteTrace(TraceN64System, TraceError, "Failed to allocate RDRAM (Size: 0x%X)", m_AllocatedRdramSize);
FreeMemory();
return false;
}
if (CommitMemory(m_RDRAM + 0x04000000, 0x2000, MEM_READWRITE) == nullptr)
{
WriteTrace(TraceN64System, TraceError, "Failed to allocate DMEM/IMEM (Size: 0x%X)", 0x2000);
FreeMemory();
return false;
}
m_DMEM = (uint8_t *)(m_RDRAM + 0x04000000);
m_IMEM = (uint8_t *)(m_RDRAM + 0x04001000);
if (g_Settings->LoadBool(Game_LoadRomToMemory))
{
m_RomMapped = true;
m_Rom = m_RDRAM + 0x10000000;
m_RomSize = g_Rom->GetRomSize();
if (CommitMemory(m_Rom, g_Rom->GetRomSize(), MEM_READWRITE) == nullptr)
{
WriteTrace(TraceN64System, TraceError, "Failed to allocate ROM (Size: 0x%X)", g_Rom->GetRomSize());
FreeMemory();
return false;
}
memcpy(m_Rom, g_Rom->GetRomAddress(), g_Rom->GetRomSize());
::ProtectMemory(m_Rom, g_Rom->GetRomSize(), MEM_READONLY);
}
else
{
m_RomMapped = false;
m_Rom = g_Rom->GetRomAddress();
m_RomSize = g_Rom->GetRomSize();
}
// 64DD IPL
if (g_DDRom != nullptr)
{
if (g_Settings->LoadBool(Game_LoadRomToMemory))
{
m_DDRomMapped = true;
m_DDRom = m_RDRAM + 0x06000000;
m_DDRomSize = g_DDRom->GetRomSize();
if (CommitMemory(m_DDRom, g_DDRom->GetRomSize(), MEM_READWRITE) == nullptr)
{
WriteTrace(TraceN64System, TraceError, "Failed to allocate ROM (Size: 0x%X)", g_DDRom->GetRomSize());
FreeMemory();
return false;
}
memcpy(m_DDRom, g_DDRom->GetRomAddress(), g_DDRom->GetRomSize());
::ProtectMemory(m_DDRom, g_DDRom->GetRomSize(), MEM_READONLY);
}
else
{
m_DDRomMapped = false;
m_DDRom = g_DDRom->GetRomAddress();
m_DDRomSize = g_DDRom->GetRomSize();
}
}
CPifRam::Reset();
m_TLB_ReadMap = new size_t[0x100000];
if (m_TLB_ReadMap == nullptr)
{
WriteTrace(TraceN64System, TraceError, "Failed to allocate m_TLB_ReadMap (Size: 0x%X)", 0x100000 * sizeof(size_t));
FreeMemory();
return false;
}
m_TLB_WriteMap = new size_t[0x100000];
if (m_TLB_WriteMap == nullptr)
{
WriteTrace(TraceN64System, TraceError, "Failed to allocate m_TLB_WriteMap (Size: 0x%X)", 0xFFFFF * sizeof(size_t));
FreeMemory();
return false;
}
Reset(false);
return true;
}
void CMipsMemoryVM::FreeMemory()
{
if (m_RDRAM)
{
if (DecommitMemory(m_RDRAM, 0x20000000))
{
if (m_Reserve1 == nullptr)
{
m_Reserve1 = m_RDRAM;
}
else if (m_Reserve2 == nullptr)
{
m_Reserve2 = m_RDRAM;
}
else
{
FreeAddressSpace(m_RDRAM, 0x20000000);
}
}
else
{
FreeAddressSpace(m_RDRAM, 0x20000000);
}
m_RDRAM = nullptr;
m_IMEM = nullptr;
m_DMEM = nullptr;
}
if (m_TLB_ReadMap)
{
delete[] m_TLB_ReadMap;
m_TLB_ReadMap = nullptr;
}
if (m_TLB_WriteMap)
{
delete[] m_TLB_WriteMap;
m_TLB_WriteMap = nullptr;
}
CPifRam::Reset();
}
uint8_t * CMipsMemoryVM::Rdram()
{
return m_RDRAM;
}
uint32_t CMipsMemoryVM::RdramSize()
{
return m_AllocatedRdramSize;
}
uint8_t * CMipsMemoryVM::Dmem()
{
return m_DMEM;
}
uint8_t * CMipsMemoryVM::Imem()
{
return m_IMEM;
}
uint8_t * CMipsMemoryVM::PifRam()
{
return m_PifRam;
}
CSram* CMipsMemoryVM::GetSram(void)
{
return dynamic_cast<CSram*>(this);
}
CFlashram* CMipsMemoryVM::GetFlashram()
{
return dynamic_cast<CFlashram*>(this);
}
bool CMipsMemoryVM::LB_VAddr(uint32_t VAddr, uint8_t& Value)
{
if (m_TLB_ReadMap[VAddr >> 12] == 0)
{
return false;
}
Value = *(uint8_t*)(m_TLB_ReadMap[VAddr >> 12] + (VAddr ^ 3));
return true;
}
bool CMipsMemoryVM::LH_VAddr(uint32_t VAddr, uint16_t& Value)
{
if (m_TLB_ReadMap[VAddr >> 12] == 0)
{
return false;
}
Value = *(uint16_t*)(m_TLB_ReadMap[VAddr >> 12] + (VAddr ^ 2));
return true;
}
bool CMipsMemoryVM::LW_VAddr(uint32_t VAddr, uint32_t& Value)
{
if (VAddr >= 0xA3F00000 && VAddr < 0xC0000000)
{
if ((VAddr & 0xFFFFE000ul) != 0xA4000000ul) // !(A4000000 <= addr < A4002000)
{
VAddr &= 0x1FFFFFFF;
LW_NonMemory(VAddr, &Value);
return true;
}
}
uint8_t* BaseAddress = (uint8_t*)m_TLB_ReadMap[VAddr >> 12];
if (BaseAddress == nullptr)
{
return false;
}
Value = *(uint32_t*)(BaseAddress + VAddr);
// if (LookUpMode == FuncFind_ChangeMemory)
// {
// g_Notify->BreakPoint(__FILE__, __LINE__);
// if ( (Command.Hex >> 16) == 0x7C7C)
// {
// Command.Hex = OrigMem[(Command.Hex & 0xFFFF)].OriginalValue;
// }
// }
return true;
}
bool CMipsMemoryVM::LD_VAddr(uint32_t VAddr, uint64_t& Value)
{
if (m_TLB_ReadMap[VAddr >> 12] == 0)
{
return false;
}
*((uint32_t*)(&Value) + 1) = *(uint32_t*)(m_TLB_ReadMap[VAddr >> 12] + VAddr);
*((uint32_t*)(&Value) + 0) = *(uint32_t*)(m_TLB_ReadMap[VAddr >> 12] + VAddr + 4);
return true;
}
bool CMipsMemoryVM::LB_PAddr(uint32_t PAddr, uint8_t& Value)
{
if (PAddr < RdramSize())
{
Value = *(uint8_t*)(m_RDRAM + (PAddr ^ 3));
return true;
}
if (PAddr > 0x18000000)
{
return false;
}
g_Notify->BreakPoint(__FILE__, __LINE__);
return false;
}
bool CMipsMemoryVM::LH_PAddr(uint32_t PAddr, uint16_t& Value)
{
if (PAddr < RdramSize())
{
Value = *(uint16_t*)(m_RDRAM + (PAddr ^ 2));
return true;
}
if (PAddr > 0x18000000)
{
return false;
}
g_Notify->BreakPoint(__FILE__, __LINE__);
return false;
}
bool CMipsMemoryVM::LW_PAddr(uint32_t PAddr, uint32_t& Value)
{
if (PAddr < RdramSize())
{
Value = *(uint32_t*)(m_RDRAM + PAddr);
return true;
}
if (PAddr > 0x18000000)
{
return false;
}
g_Notify->BreakPoint(__FILE__, __LINE__);
return false;
}
bool CMipsMemoryVM::LD_PAddr(uint32_t PAddr, uint64_t& Value)
{
if (PAddr < RdramSize())
{
*((uint32_t*)(&Value) + 1) = *(uint32_t*)(m_RDRAM + PAddr);
*((uint32_t*)(&Value) + 0) = *(uint32_t*)(m_RDRAM + PAddr + 4);
return true;
}
if (PAddr > 0x18000000)
{
return false;
}
g_Notify->BreakPoint(__FILE__, __LINE__);
return false;
}
bool CMipsMemoryVM::SB_VAddr(uint32_t VAddr, uint8_t Value)
{
if (m_TLB_WriteMap[VAddr >> 12] == 0)
{
return false;
}
*(uint8_t*)(m_TLB_WriteMap[VAddr >> 12] + (VAddr ^ 3)) = Value;
return true;
}
bool CMipsMemoryVM::SH_VAddr(uint32_t VAddr, uint16_t Value)
{
if (m_TLB_WriteMap[VAddr >> 12] == 0)
{
return false;
}
*(uint16_t*)(m_TLB_WriteMap[VAddr >> 12] + (VAddr ^ 2)) = Value;
return true;
}
bool CMipsMemoryVM::SW_VAddr(uint32_t VAddr, uint32_t Value)
{
if (VAddr >= 0xA3F00000 && VAddr < 0xC0000000)
{
if ((VAddr & 0xFFFFE000ul) != 0xA4000000ul) // !(A4000000 <= addr < A4002000)
{
VAddr &= 0x1FFFFFFF;
SW_NonMemory(VAddr, Value);
return true;
}
}
if (m_TLB_WriteMap[VAddr >> 12] == 0)
{
return false;
}
*(uint32_t*)(m_TLB_WriteMap[VAddr >> 12] + VAddr) = Value;
return true;
}
bool CMipsMemoryVM::SD_VAddr(uint32_t VAddr, uint64_t Value)
{
if (m_TLB_WriteMap[VAddr >> 12] == 0)
{
return false;
}
*(uint32_t*)(m_TLB_WriteMap[VAddr >> 12] + VAddr + 0) = *((uint32_t*)(&Value) + 1);
*(uint32_t*)(m_TLB_WriteMap[VAddr >> 12] + VAddr + 4) = *((uint32_t*)(&Value));
return true;
}
bool CMipsMemoryVM::SB_PAddr(uint32_t PAddr, uint8_t Value)
{
if (PAddr < RdramSize())
{
*(uint8_t*)(m_RDRAM + (PAddr ^ 3)) = Value;
return true;
}
if (PAddr > 0x18000000)
{
return false;
}
g_Notify->BreakPoint(__FILE__, __LINE__);
return false;
}
bool CMipsMemoryVM::SH_PAddr(uint32_t PAddr, uint16_t Value)
{
if (PAddr < RdramSize())
{
*(uint16_t*)(m_RDRAM + (PAddr ^ 2)) = Value;
return true;
}
if (PAddr > 0x18000000)
{
return false;
}
g_Notify->BreakPoint(__FILE__, __LINE__);
return false;
}
bool CMipsMemoryVM::SW_PAddr(uint32_t PAddr, uint32_t Value)
{
if (PAddr < RdramSize())
{
*(uint32_t*)(m_RDRAM + PAddr) = Value;
return true;
}
if (PAddr > 0x18000000)
{
return false;
}
g_Notify->BreakPoint(__FILE__, __LINE__);
return false;
}
bool CMipsMemoryVM::SD_PAddr(uint32_t PAddr, uint64_t Value)
{
if (PAddr < RdramSize())
{
*(uint32_t*)(m_RDRAM + PAddr + 0) = *((uint32_t*)(&Value) + 1);
*(uint32_t*)(m_RDRAM + PAddr + 4) = *((uint32_t*)(&Value));
return true;
}
if (PAddr > 0x18000000)
{
return false;
}
g_Notify->BreakPoint(__FILE__, __LINE__);
return false;
}
bool CMipsMemoryVM::ValidVaddr(uint32_t VAddr) const
{
return m_TLB_ReadMap[VAddr >> 12] != 0;
}
bool CMipsMemoryVM::VAddrToRealAddr(uint32_t VAddr, void * &RealAddress) const
{
if (m_TLB_ReadMap[VAddr >> 12] == 0)
{
return false;
}
RealAddress = (uint8_t *)(m_TLB_ReadMap[VAddr >> 12] + VAddr);
return true;
}
bool CMipsMemoryVM::TranslateVaddr(uint32_t VAddr, uint32_t &PAddr) const
{
// Change the virtual address to a physical address
if (m_TLB_ReadMap[VAddr >> 12] == 0)
{
return false;
}
PAddr = (uint32_t)((uint8_t *)(m_TLB_ReadMap[VAddr >> 12] + VAddr) - m_RDRAM);
return true;
}
bool CMipsMemoryVM::LB_NonMemory(uint32_t PAddr, uint32_t* Value, bool /*SignExtend*/)
{
if (PAddr < 0x800000)
{
*Value = 0;
return true;
}
if (PAddr >= 0x10000000 && PAddr < 0x16000000)
{
g_Notify->BreakPoint(__FILE__, __LINE__);
}
*Value = 0;
return true;
}
bool CMipsMemoryVM::LH_NonMemory(uint32_t PAddr, uint32_t* Value, bool/* SignExtend*/)
{
if (PAddr < 0x800000)
{
*Value = 0;
return true;
}
if (PAddr >= 0x10000000 && PAddr < 0x16000000)
{
g_Notify->BreakPoint(__FILE__, __LINE__);
}
*Value = 0;
return false;
}
bool CMipsMemoryVM::LW_NonMemory(uint32_t PAddr, uint32_t* Value)
{
m_MemLookupAddress = PAddr;
if (PAddr >= 0x10000000 && PAddr < 0x16000000)
{
Load32Rom();
}
else
{
switch (PAddr & 0xFFF00000)
{
case 0x03F00000: Load32RDRAMRegisters(); break;
case 0x04000000: Load32SPRegisters(); break;
case 0x04100000: Load32DPCommand(); break;
case 0x04300000: Load32MIPSInterface(); break;
case 0x04400000: Load32VideoInterface(); break;
case 0x04500000: Load32AudioInterface(); break;
case 0x04600000: m_PeripheralInterfaceHandler.Read32(PAddr, m_MemLookupValue.UW[0]); break;
case 0x04700000: m_RDRAMInterfaceHandler.Read32(PAddr, m_MemLookupValue.UW[0]); break;
case 0x04800000: Load32SerialInterface(); break;
case 0x05000000: Load32CartridgeDomain2Address1(); break;
case 0x06000000: Load32CartridgeDomain1Address1(); break;
case 0x08000000: Load32CartridgeDomain2Address2(); break;
case 0x1FC00000: Load32PifRam(); break;
case 0x1FF00000: Load32CartridgeDomain1Address3(); break;
default:
m_MemLookupValue.UW[0] = PAddr & 0xFFFF;
m_MemLookupValue.UW[0] = (m_MemLookupValue.UW[0] << 16) | m_MemLookupValue.UW[0];
}
}
*Value = m_MemLookupValue.UW[0];
return true;
}
bool CMipsMemoryVM::SB_NonMemory(uint32_t PAddr, uint8_t Value)
{
switch (PAddr & 0xFFF00000)
{
case 0x00000000:
case 0x00100000:
case 0x00200000:
case 0x00300000:
case 0x00400000:
case 0x00500000:
case 0x00600000:
case 0x00700000:
if (PAddr < RdramSize())
{
g_Recompiler->ClearRecompCode_Phys(PAddr & ~0xFFF, 0xFFC, CRecompiler::Remove_ProtectedMem);
::ProtectMemory(m_RDRAM + (PAddr & ~0xFFF), 0xFFC, MEM_READWRITE);
*(uint8_t *)(m_RDRAM + PAddr) = Value;
}
break;
default:
return false;
}
return true;
}
bool CMipsMemoryVM::SH_NonMemory(uint32_t PAddr, uint16_t Value)
{
switch (PAddr & 0xFFF00000)
{
case 0x00000000:
case 0x00100000:
case 0x00200000:
case 0x00300000:
case 0x00400000:
case 0x00500000:
case 0x00600000:
case 0x00700000:
if (PAddr < RdramSize())
{
g_Recompiler->ClearRecompCode_Phys(PAddr & ~0xFFF, 0x1000, CRecompiler::Remove_ProtectedMem);
::ProtectMemory(m_RDRAM + (PAddr & ~0xFFF), 0xFFC, MEM_READWRITE);
*(uint16_t *)(m_RDRAM + PAddr) = Value;
}
break;
default:
return false;
}
return true;
}
bool CMipsMemoryVM::SW_NonMemory(uint32_t PAddr, uint32_t Value)
{
m_MemLookupValue.UW[0] = Value;
m_MemLookupAddress = PAddr;
if (PAddr >= 0x10000000 && PAddr < 0x16000000)
{
if ((PAddr - 0x10000000) < g_Rom->GetRomSize())
{
m_RomWrittenTo = true;
m_RomWroteValue = Value;
}
else
{
return false;
}
}
switch (PAddr & 0xFFF00000)
{
case 0x00000000:
case 0x00100000:
case 0x00200000:
case 0x00300000:
case 0x00400000:
case 0x00500000:
case 0x00600000:
case 0x00700000:
if (PAddr < RdramSize())
{
g_Recompiler->ClearRecompCode_Phys(PAddr & ~0xFFF, 0x1000, CRecompiler::Remove_ProtectedMem);
::ProtectMemory(m_RDRAM + (PAddr & ~0xFFF), 0xFFC, MEM_READWRITE);
*(uint32_t *)(m_RDRAM + PAddr) = Value;
}
break;
case 0x03F00000: Write32RDRAMRegisters(); break;
case 0x04000000:
if (PAddr < 0x04002000)
{
g_Recompiler->ClearRecompCode_Phys(PAddr & ~0xFFF, 0xFFF, CRecompiler::Remove_ProtectedMem);
*(uint32_t *)(m_RDRAM + PAddr) = Value;
}
else
{
Write32SPRegisters();
}
break;
case 0x04100000: Write32DPCommandRegisters(); break;
case 0x04300000: Write32MIPSInterface(); break;
case 0x04400000: Write32VideoInterface(); break;
case 0x04500000: Write32AudioInterface(); break;
case 0x04600000: m_PeripheralInterfaceHandler.Write32(PAddr, Value, 0xFFFFFFFF); break;
case 0x04700000: m_RDRAMInterfaceHandler.Write32(PAddr, Value, 0xFFFFFFFF); break;
case 0x04800000: Write32SerialInterface(); break;
case 0x05000000: Write32CartridgeDomain2Address1(); break;
case 0x08000000: Write32CartridgeDomain2Address2(); break;
case 0x1FC00000: Write32PifRam(); break;
default:
return false;
break;
}
return true;
}
void CMipsMemoryVM::UpdateHalfLine()
{
uint32_t NextViTimer = g_SystemTimer->GetTimer(CSystemTimer::ViTimer);
if (*g_NextTimer < 0)
{
m_HalfLine = 0;
return;
}
int32_t check_value = (int32_t)(m_HalfLineCheck - NextViTimer);
if (check_value > 0 && check_value < 40)
{
*g_NextTimer -= g_System->ViRefreshRate();
if (*g_NextTimer < 0)
{
*g_NextTimer = 0 - g_System->CountPerOp();
}
g_SystemTimer->UpdateTimers();
NextViTimer = g_SystemTimer->GetTimer(CSystemTimer::ViTimer);
}
m_HalfLine = (uint32_t)(*g_NextTimer / g_System->ViRefreshRate());
m_HalfLine &= ~1;
m_HalfLine |= m_FieldSerration;
g_Reg->VI_V_CURRENT_LINE_REG = m_HalfLine;
m_HalfLineCheck = NextViTimer;
}
void CMipsMemoryVM::UpdateFieldSerration(uint32_t interlaced)
{
m_FieldSerration ^= 1;
m_FieldSerration &= interlaced;
}
void CMipsMemoryVM::ProtectMemory(uint32_t StartVaddr, uint32_t EndVaddr)
{
WriteTrace(TraceProtectedMem, TraceDebug, "StartVaddr: %08X EndVaddr: %08X", StartVaddr, EndVaddr);
if (!ValidVaddr(StartVaddr) || !ValidVaddr(EndVaddr))
{
return;
}
// Get physical addresses passed
uint32_t StartPAddr, EndPAddr;
if (!TranslateVaddr(StartVaddr, StartPAddr))
{
g_Notify->BreakPoint(__FILE__, __LINE__);
}
if (!TranslateVaddr(EndVaddr, EndPAddr))
{
g_Notify->BreakPoint(__FILE__, __LINE__);
}
// Get length of memory being protected
int32_t Length = ((EndPAddr + 3) - StartPAddr) & ~3;
if (Length < 0)
{
g_Notify->BreakPoint(__FILE__, __LINE__);
}
// Protect that memory address space
uint8_t * MemLoc = Rdram() + StartPAddr;
WriteTrace(TraceProtectedMem, TraceDebug, "Paddr: %08X Length: %X", StartPAddr, Length);
::ProtectMemory(MemLoc, Length, MEM_READONLY);
}
void CMipsMemoryVM::UnProtectMemory(uint32_t StartVaddr, uint32_t EndVaddr)
{
WriteTrace(TraceProtectedMem, TraceDebug, "StartVaddr: %08X EndVaddr: %08X", StartVaddr, EndVaddr);
if (!ValidVaddr(StartVaddr) || !ValidVaddr(EndVaddr)) { return; }
// Get physical addresses passed
uint32_t StartPAddr, EndPAddr;
if (!TranslateVaddr(StartVaddr, StartPAddr))
{
g_Notify->BreakPoint(__FILE__, __LINE__);
}
if (!TranslateVaddr(EndVaddr, EndPAddr))
{
g_Notify->BreakPoint(__FILE__, __LINE__);
}
// Get length of memory being protected
int32_t Length = ((EndPAddr + 3) - StartPAddr) & ~3;
if (Length < 0)
{
g_Notify->BreakPoint(__FILE__, __LINE__);
}
//Protect that memory address space
uint8_t * MemLoc = Rdram() + StartPAddr;
::ProtectMemory(MemLoc, Length, MEM_READWRITE);
}
const char * CMipsMemoryVM::LabelName(uint32_t Address) const
{
sprintf(m_strLabelName, "0x%08X", Address);
return m_strLabelName;
}
void CMipsMemoryVM::TLB_Mapped(uint32_t VAddr, uint32_t Len, uint32_t PAddr, bool bReadOnly)
{
size_t count, VEnd;
VEnd = VAddr + Len;
for (count = VAddr; count < VEnd; count += 0x1000)
{
size_t Index = count >> 12;
m_TLB_ReadMap[Index] = ((size_t)m_RDRAM + (count - VAddr + PAddr)) - count;
if (!bReadOnly)
{
m_TLB_WriteMap[Index] = ((size_t)m_RDRAM + (count - VAddr + PAddr)) - count;
}
}
}
void CMipsMemoryVM::TLB_Unmaped(uint32_t Vaddr, uint32_t Len)
{
size_t count, End;
End = Vaddr + Len;
for (count = Vaddr; count < End; count += 0x1000)
{
size_t Index = count >> 12;
m_TLB_ReadMap[Index] = 0;
m_TLB_WriteMap[Index] = 0;
}
}
void CMipsMemoryVM::RdramChanged(CMipsMemoryVM * _this)
{
const size_t new_size = g_Settings->LoadDword(Game_RDRamSize);
const size_t old_size = _this->m_AllocatedRdramSize;
if (old_size == new_size)
{
return;
}
if (old_size > new_size)
{
DecommitMemory(_this->m_RDRAM + new_size, old_size - new_size);
}
else
{
void * result = CommitMemory(_this->m_RDRAM + old_size, new_size - old_size, MEM_READWRITE);
if (result == nullptr)
{
WriteTrace(TraceN64System, TraceError, "Failed to allocate extended memory");
g_Notify->FatalError(GS(MSG_MEM_ALLOC_ERROR));
}
}
if (new_size > 0xFFFFFFFFul)
{ // Should be unreachable because: size_t new_size = g_Settings->(uint32_t)
g_Notify->BreakPoint(__FILE__, __LINE__);
} // However, FFFFFFFF also is a limit to RCP addressing, so we care
_this->m_AllocatedRdramSize = (uint32_t)new_size;
}
void CMipsMemoryVM::ChangeSpStatus()
{
if ((RegModValue & SP_CLR_HALT) != 0)
{
g_Reg->SP_STATUS_REG &= ~SP_STATUS_HALT;
}
if ((RegModValue & SP_SET_HALT) != 0)
{
g_Reg->SP_STATUS_REG |= SP_STATUS_HALT;
}
if ((RegModValue & SP_CLR_BROKE) != 0)
{
g_Reg->SP_STATUS_REG &= ~SP_STATUS_BROKE;
}
if ((RegModValue & SP_CLR_INTR) != 0)
{
g_Reg->MI_INTR_REG &= ~MI_INTR_SP;
g_Reg->m_RspIntrReg &= ~MI_INTR_SP;
g_Reg->CheckInterrupts();
}
if ((RegModValue & SP_SET_INTR) != 0 && HaveDebugger())
{
g_Notify->DisplayError("SP_SET_INTR");
}
if ((RegModValue & SP_CLR_SSTEP) != 0)
{
g_Reg->SP_STATUS_REG &= ~SP_STATUS_SSTEP;
}
if ((RegModValue & SP_SET_SSTEP) != 0)
{
g_Reg->SP_STATUS_REG |= SP_STATUS_SSTEP;
}
if ((RegModValue & SP_CLR_INTR_BREAK) != 0)
{
g_Reg->SP_STATUS_REG &= ~SP_STATUS_INTR_BREAK;
}
if ((RegModValue & SP_SET_INTR_BREAK) != 0)
{
g_Reg->SP_STATUS_REG |= SP_STATUS_INTR_BREAK;
}
if ((RegModValue & SP_CLR_SIG0) != 0)
{
g_Reg->SP_STATUS_REG &= ~SP_STATUS_SIG0;
}
if ((RegModValue & SP_SET_SIG0) != 0)
{
g_Reg->SP_STATUS_REG |= SP_STATUS_SIG0;
}
if ((RegModValue & SP_CLR_SIG1) != 0)
{
g_Reg->SP_STATUS_REG &= ~SP_STATUS_SIG1;
}
if ((RegModValue & SP_SET_SIG1) != 0)
{
g_Reg->SP_STATUS_REG |= SP_STATUS_SIG1;
}
if ((RegModValue & SP_CLR_SIG2) != 0)
{
g_Reg->SP_STATUS_REG &= ~SP_STATUS_SIG2;
}