/**************************************************************************** * * * Project64 - A Nintendo 64 emulator. * * http://www.pj64-emu.com/ * * Copyright (C) 2012 Project64. All rights reserved. * * * * License: * * GNU/GPLv2 http://www.gnu.org/licenses/gpl-2.0.html * * * ****************************************************************************/ #pragma once #include #include "TranslateVaddr.h" #include #include #include #include #include #include #ifdef __arm__ #include #endif #ifndef _WIN32 #include /* siginfo_t */ #endif /* * To do: Have address translation functions here? * `return` either the translated address or the mask to XOR by? * * This will help us gradually be able to port Project64 for big-endian CPUs. * Currently it is written to assume 32-bit little-endian, like so: * * 0xAABBCCDD EEFFGGHH --> 0xDDCCBBAA HHGGFFEE * GPR bits[63..0] b1b2b3b4 b5b6b7b8 */ #if defined(__i386__) || defined(_M_IX86) class CX86RecompilerOps; #endif class CMipsMemoryVM : public CTransVaddr, private R4300iOp, private CPifRam, private CFlashram, private CSram, private CDMA { public: CMipsMemoryVM(bool SavesReadOnly); ~CMipsMemoryVM(); static void ReserveMemory(); static void FreeReservedMemory(); bool Initialize(); void Reset(bool EraseMemory); uint8_t * Rdram(); uint32_t RdramSize(); uint8_t * Dmem(); uint8_t * Imem(); uint8_t * PifRam(); bool LB_VAddr(uint32_t VAddr, uint8_t & Value); bool LH_VAddr(uint32_t VAddr, uint16_t & Value); bool LW_VAddr(uint32_t VAddr, uint32_t & Value); bool LD_VAddr(uint32_t VAddr, uint64_t & Value); bool LB_PAddr(uint32_t PAddr, uint8_t & Value); bool LH_PAddr(uint32_t PAddr, uint16_t & Value); bool LW_PAddr(uint32_t PAddr, uint32_t & Value); bool LD_PAddr(uint32_t PAddr, uint64_t & Value); bool SB_VAddr(uint32_t VAddr, uint8_t Value); bool SH_VAddr(uint32_t VAddr, uint16_t Value); bool SW_VAddr(uint32_t VAddr, uint32_t Value); bool SD_VAddr(uint32_t VAddr, uint64_t Value); bool SB_PAddr(uint32_t PAddr, uint8_t Value); bool SH_PAddr(uint32_t PAddr, uint16_t Value); bool SW_PAddr(uint32_t PAddr, uint32_t Value); bool SD_PAddr(uint32_t PAddr, uint64_t Value); int32_t MemoryFilter(uint32_t dwExptCode, void * lpExceptionPointer); void UpdateFieldSerration(uint32_t interlaced); #ifndef _WIN32 static bool SetupSegvHandler(void); static void segv_handler(int signal, siginfo_t *siginfo, void *sigcontext); #endif //Protect the Memory from being written to void ProtectMemory(uint32_t StartVaddr, uint32_t EndVaddr); void UnProtectMemory(uint32_t StartVaddr, uint32_t EndVaddr); //Functions for TLB notification void TLB_Mapped(uint32_t VAddr, uint32_t Len, uint32_t PAddr, bool bReadOnly); void TLB_Unmaped(uint32_t Vaddr, uint32_t Len); // CTransVaddr interface bool TranslateVaddr(uint32_t VAddr, uint32_t &PAddr) const; bool ValidVaddr(uint32_t VAddr) const; bool VAddrToRealAddr(uint32_t VAddr, void * &RealAddress) const; // Labels const char * LabelName(uint32_t Address) const; private: CMipsMemoryVM(); // Disable default constructor CMipsMemoryVM(const CMipsMemoryVM&); // Disable copy constructor CMipsMemoryVM& operator=(const CMipsMemoryVM&); // Disable assignment #if defined(__i386__) || defined(_M_IX86) friend CX86RecompilerOps; #endif static void RdramChanged(CMipsMemoryVM * _this); static void ChangeSpStatus(); static void ChangeMiIntrMask(); bool LB_NonMemory(uint32_t PAddr, uint32_t * Value, bool SignExtend); bool LH_NonMemory(uint32_t PAddr, uint32_t * Value, bool SignExtend); bool LW_NonMemory(uint32_t PAddr, uint32_t * Value); bool SB_NonMemory(uint32_t PAddr, uint8_t Value); bool SH_NonMemory(uint32_t PAddr, uint16_t Value); bool SW_NonMemory(uint32_t PAddr, uint32_t Value); static void Load32RDRAMRegisters(void); static void Load32SPRegisters(void); static void Load32DPCommand(void); static void Load32MIPSInterface(void); static void Load32VideoInterface(void); static void Load32AudioInterface(void); static void Load32PeripheralInterface(void); static void Load32RDRAMInterface(void); static void Load32SerialInterface(void); static void Load32CartridgeDomain1Address1(void); static void Load32CartridgeDomain1Address3(void); static void Load32CartridgeDomain2Address1(void); static void Load32CartridgeDomain2Address2(void); static void Load32PifRam(void); static void Load32Rom(void); static void Write32RDRAMRegisters(void); static void Write32SPRegisters(void); static void Write32DPCommandRegisters(void); static void Write32MIPSInterface(void); static void Write32VideoInterface(void); static void Write32AudioInterface(void); static void Write32PeripheralInterface(void); static void Write32RDRAMInterface(void); static void Write32SerialInterface(void); static void Write32CartridgeDomain2Address1(void); static void Write32CartridgeDomain2Address2(void); static void Write32PifRam(void); #if defined(__i386__) || defined(_M_IX86) typedef struct _X86_CONTEXT { uint32_t * Edi; uint32_t * Esi; uint32_t * Ebx; uint32_t * Edx; uint32_t * Ecx; uint32_t * Eax; uint32_t * Eip; uint32_t * Esp; uint32_t * Ebp; } X86_CONTEXT; static bool FilterX86Exception(uint32_t MemAddress, X86_CONTEXT & context); #endif #ifdef __arm__ static bool FilterArmException(uint32_t MemAddress, mcontext_t & context); #endif //Memory Locations static uint8_t * m_Reserve1, *m_Reserve2; uint8_t * m_RDRAM, *m_DMEM, *m_IMEM; uint32_t m_AllocatedRdramSize; //Rom Information bool m_RomMapped; uint8_t * m_Rom; uint32_t m_RomSize; bool m_RomWrittenTo; uint32_t m_RomWroteValue; //DDRom Information bool m_DDRomMapped; uint8_t * m_DDRom; uint32_t m_DDRomSize; //Current Half line void UpdateHalfLine(); uint32_t m_HalfLine; uint32_t m_HalfLineCheck; uint32_t m_FieldSerration; //Initializing and resetting information about the memory system void FreeMemory(); mutable char m_strLabelName[100]; //BIG look up table to quickly translate the tlb to real mem address size_t * m_TLB_ReadMap; size_t * m_TLB_WriteMap; static uint32_t m_MemLookupAddress; static MIPS_DWORD m_MemLookupValue; static bool m_MemLookupValid; static uint32_t RegModValue; };