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Diffstat (limited to 'src/memmap.h')
-rw-r--r-- | src/memmap.h | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/src/memmap.h b/src/memmap.h new file mode 100644 index 0000000..ca234ea --- /dev/null +++ b/src/memmap.h @@ -0,0 +1,200 @@ +/* + * Snes9x - Portable Super Nintendo Entertainment System (TM) emulator. + * + * (c) Copyright 1996 - 2001 Gary Henderson (gary.henderson@ntlworld.com) and + * Jerremy Koot (jkoot@snes9x.com) + * + * Super FX C emulator code + * (c) Copyright 1997 - 1999 Ivar (ivar@snes9x.com) and + * Gary Henderson. + * Super FX assembler emulator code (c) Copyright 1998 zsKnight and _Demo_. + * + * DSP1 emulator code (c) Copyright 1998 Ivar, _Demo_ and Gary Henderson. + * C4 asm and some C emulation code (c) Copyright 2000 zsKnight and _Demo_. + * C4 C code (c) Copyright 2001 Gary Henderson (gary.henderson@ntlworld.com). + * + * DOS port code contains the works of other authors. See headers in + * individual files. + * + * Snes9x homepage: http://www.snes9x.com + * + * Permission to use, copy, modify and distribute Snes9x in both binary and + * source form, for non-commercial purposes, is hereby granted without fee, + * providing that this license information and copyright notice appear with + * all copies and any derived work. + * + * This software is provided 'as-is', without any express or implied + * warranty. In no event shall the authors be held liable for any damages + * arising from the use of this software. + * + * Snes9x is freeware for PERSONAL USE only. Commercial users should + * seek permission of the copyright holders first. Commercial use includes + * charging money for Snes9x or software derived from Snes9x. + * + * The copyright holders request that bug fixes and improvements to the code + * should be forwarded to them so everyone can benefit from the modifications + * in future versions. + * + * Super NES and Super Nintendo Entertainment System are trademarks of + * Nintendo Co., Limited and its subsidiary companies. + */ +#ifndef _memmap_h_ +#define _memmap_h_ + +#include "snes9x.h" + +#ifdef FAST_LSB_WORD_ACCESS +#define READ_WORD(s) (*(uint16 *) (s)) +#define READ_DWORD(s) (*(uint32 *) (s)) +#define WRITE_WORD(s, d) (*(uint16 *) (s) = (d) +#define WRITE_DWORD(s, d) (*(uint32 *) (s) = (d) +#else +#define READ_WORD(s) ( *(uint8 *) (s) |\ + (*((uint8 *) (s) + 1) << 8)) +#define READ_DWORD(s) ( *(uint8 *) (s) |\ + (*((uint8 *) (s) + 1) << 8) |\ + (*((uint8 *) (s) + 2) << 16) |\ + (*((uint8 *) (s) + 3) << 24)) +#define WRITE_WORD(s, d) *(uint8 *) (s) = (d), \ + *((uint8 *) (s) + 1) = (d) >> 8 +#define WRITE_DWORD(s, d) *(uint8 *) (s) = (uint8) (d), \ + *((uint8 *) (s) + 1) = (uint8) ((d) >> 8),\ + *((uint8 *) (s) + 2) = (uint8) ((d) >> 16),\ + *((uint8 *) (s) + 3) = (uint8) ((d) >> 24) +#define WRITE_3WORD(s, d) *(uint8 *) (s) = (uint8) (d), \ + *((uint8 *) (s) + 1) = (uint8) ((d) >> 8),\ + *((uint8 *) (s) + 2) = (uint8) ((d) >> 16) +#define READ_3WORD(s) ( *(uint8 *) (s) |\ + (*((uint8 *) (s) + 1) << 8) |\ + (*((uint8 *) (s) + 2) << 16)) + +#endif + +#define MEMMAP_BLOCK_SIZE (0x1000) +#define MEMMAP_NUM_BLOCKS (0x1000000 / MEMMAP_BLOCK_SIZE) +#define MEMMAP_BLOCKS_PER_BANK (0x10000 / MEMMAP_BLOCK_SIZE) +#define MEMMAP_SHIFT 12 +#define MEMMAP_MASK (MEMMAP_BLOCK_SIZE - 1) +#define MEMMAP_MAX_SDD1_LOGGED_ENTRIES (0x10000 / 8) + +class CMemory { +public: + bool8_32 LoadROM (const char *); + void InitROM (bool8_32); + bool8_32 LoadSRAM (const char *); + bool8_32 SaveSRAM (const char *); + bool8_32 Init (); + void Deinit (); + void FreeSDD1Data (); + + void WriteProtectROM (); + void FixROMSpeed (); + void MapRAM (); + void MapExtraRAM (); + char *Safe (const char *); + + void LoROMMap (); + void LoROM24MBSMap (); + void SRAM512KLoROMMap (); + void SRAM1024KLoROMMap (); + void SufamiTurboLoROMMap (); + void HiROMMap (); + void SuperFXROMMap (); + void TalesROMMap (bool8_32); + void AlphaROMMap (); + void SA1ROMMap (); + void BSHiROMMap (); + bool8_32 AllASCII (uint8 *b, int size); + int ScoreHiROM (bool8_32 skip_header); + int ScoreLoROM (bool8_32 skip_header); + void ApplyROMFixes (); + void CheckForIPSPatch (const char *rom_filename, bool8_32 header, + int32 &rom_size); + + const char *TVStandard (); + const char *Speed (); + const char *StaticRAMSize (); + const char *MapType (); + const char *MapMode (); + const char *KartContents (); + const char *Size (); + const char *Headers (); + const char *ROMID (); + const char *CompanyID (); + uint32 caCRC32(uint8 *array, uint32 size, register uint32 crc32= 0xFFFFFFFF); + + enum { + MAP_PPU, MAP_CPU, MAP_DSP, MAP_LOROM_SRAM, MAP_HIROM_SRAM, + MAP_NONE, MAP_DEBUG, MAP_C4, MAP_BWRAM, MAP_BWRAM_BITMAP, + MAP_BWRAM_BITMAP2, MAP_SA1RAM, MAP_LAST + }; + enum { MAX_ROM_SIZE = 0x600000 }; + + uint8 *RAM; + uint8 *ROM; + uint8 *VRAM; + uint8 *SRAM; + uint8 *BWRAM; + uint8 *FillRAM; + uint8 *C4RAM; + bool8_32 HiROM; + bool8_32 LoROM; + uint16 SRAMMask; + uint8 SRAMSize; + uint8 *Map [MEMMAP_NUM_BLOCKS]; + uint8 *WriteMap [MEMMAP_NUM_BLOCKS]; + uint32 MemorySpeed [MEMMAP_NUM_BLOCKS]; + uint8 BlockIsRAM [MEMMAP_NUM_BLOCKS]; + uint8 BlockIsROM [MEMMAP_NUM_BLOCKS]; + char ROMName [ROM_NAME_LEN]; + char ROMId [5]; + char CompanyId [3]; + uint8 ROMSpeed; + uint8 ROMType; + uint8 ROMSize; + int32 ROMFramesPerSecond; + int32 HeaderCount; + uint32 CalculatedSize; + uint32 CalculatedChecksum; + uint32 ROMChecksum; + uint32 ROMComplementChecksum; + uint8 *SDD1Index; + uint8 *SDD1Data; + uint32 SDD1Entries; + uint32 SDD1LoggedDataCountPrev; + uint32 SDD1LoggedDataCount; + uint8 SDD1LoggedData [MEMMAP_MAX_SDD1_LOGGED_ENTRIES]; +#ifndef _SNESPPC + char ROMFilename [_MAX_PATH]; +#else + char ROMFilename [1024]; +#endif +}; + +START_EXTERN_C +extern CMemory Memory; +extern uint8 *SRAM; +extern uint8 *ROM; +extern uint8 *RegRAM; +void S9xDeinterleaveMode2 (); +void S9xSaveSRAM (void); +END_EXTERN_C + +void S9xAutoSaveSRAM (); + +#ifdef NO_INLINE_SET_GET +uint8 S9xGetByte (uint32 Address, struct SCPUState *); +uint16 S9xGetWord (uint32 Address, struct SCPUState *); +void S9xSetByte (uint8 Byte, uint32 Address, struct SCPUState * ); +void S9xSetWord (uint16 Byte, uint32 Address, struct SCPUState *); +void S9xSetPCBase (uint32 Address, struct SCPUState *); +uint8 *S9xGetMemPointer (uint32 Address); +uint8 *GetBasePointer (uint32 Address); +#else +#ifndef INLINE +#define INLINE inline +#endif +#include "getset.h" +#endif // NO_INLINE_SET_GET + +#endif // _memmap_h_ |