-/* FCE Ultra - NES/Famicom Emulator\r
- *\r
- * Copyright notice for this file:\r
- * Copyright (C) 2002 Xodnizel\r
- *\r
- * This program is free software; you can redistribute it and/or modify\r
- * it under the terms of the GNU General Public License as published by\r
- * the Free Software Foundation; either version 2 of the License, or\r
- * (at your option) any later version.\r
- *\r
- * This program is distributed in the hope that it will be useful,\r
- * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
- * GNU General Public License for more details.\r
- *\r
- * You should have received a copy of the GNU General Public License\r
- * along with this program; if not, write to the Free Software\r
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\r
- */\r
-\r
-/* None of this code should use any of the iNES bank switching wrappers. */\r
-\r
-#include "mapinc.h"\r
-\r
-static void (*sfun)(int P);\r
-static void (*psfun)(void);\r
-\r
-void MMC5RunSound(int Count);\r
-void MMC5RunSoundHQ(void);\r
-\r
-static INLINE void MMC5SPRVROM_BANK1(uint32 A,uint32 V)\r
-{\r
- if(CHRptr[0])\r
- {\r
- V&=CHRmask1[0];\r
- MMC5SPRVPage[(A)>>10]=&CHRptr[0][(V)<<10]-(A);\r
- }\r
-}\r
-\r
-static INLINE void MMC5BGVROM_BANK1(uint32 A,uint32 V) {if(CHRptr[0]){V&=CHRmask1[0];MMC5BGVPage[(A)>>10]=&CHRptr[0][(V)<<10]-(A);}}\r
-\r
-static INLINE void MMC5SPRVROM_BANK2(uint32 A,uint32 V) {if(CHRptr[0]){V&=CHRmask2[0];MMC5SPRVPage[(A)>>10]=MMC5SPRVPage[((A)>>10)+1]=&CHRptr[0][(V)<<11]-(A);}}\r
-static INLINE void MMC5BGVROM_BANK2(uint32 A,uint32 V) {if(CHRptr[0]){V&=CHRmask2[0];MMC5BGVPage[(A)>>10]=MMC5BGVPage[((A)>>10)+1]=&CHRptr[0][(V)<<11]-(A);}}\r
-\r
-static INLINE void MMC5SPRVROM_BANK4(uint32 A,uint32 V) {if(CHRptr[0]){V&=CHRmask4[0];MMC5SPRVPage[(A)>>10]=MMC5SPRVPage[((A)>>10)+1]= MMC5SPRVPage[((A)>>10)+2]=MMC5SPRVPage[((A)>>10)+3]=&CHRptr[0][(V)<<12]-(A);}}\r
-static INLINE void MMC5BGVROM_BANK4(uint32 A,uint32 V) {if(CHRptr[0]){V&=CHRmask4[0];MMC5BGVPage[(A)>>10]=MMC5BGVPage[((A)>>10)+1]=MMC5BGVPage[((A)>>10)+2]=MMC5BGVPage[((A)>>10)+3]=&CHRptr[0][(V)<<12]-(A);}}\r
-\r
-static INLINE void MMC5SPRVROM_BANK8(uint32 V) {if(CHRptr[0]){V&=CHRmask8[0];MMC5SPRVPage[0]=MMC5SPRVPage[1]=MMC5SPRVPage[2]=MMC5SPRVPage[3]=MMC5SPRVPage[4]=MMC5SPRVPage[5]=MMC5SPRVPage[6]=MMC5SPRVPage[7]=&CHRptr[0][(V)<<13];}}\r
-static INLINE void MMC5BGVROM_BANK8(uint32 V) {if(CHRptr[0]){V&=CHRmask8[0];MMC5BGVPage[0]=MMC5BGVPage[1]=MMC5BGVPage[2]=MMC5BGVPage[3]=MMC5BGVPage[4]=MMC5BGVPage[5]=MMC5BGVPage[6]=MMC5BGVPage[7]=&CHRptr[0][(V)<<13];}}\r
-\r
-static uint8 PRGBanks[4];\r
-static uint8 WRAMPage;\r
-static uint16 CHRBanksA[8], CHRBanksB[4];\r
-static uint8 WRAMMaskEnable[2];\r
-uint8 mmc5ABMode; /* A=0, B=1 */\r
-\r
-static uint8 IRQScanline,IRQEnable;\r
-static uint8 CHRMode, NTAMirroring, NTFill, ATFill;\r
-\r
-static uint8 MMC5IRQR;\r
-static uint8 MMC5LineCounter;\r
-static uint8 mmc5psize, mmc5vsize;\r
-static uint8 mul[2];\r
-\r
-static uint8 *WRAM=NULL;\r
-static uint8 *MMC5fill=NULL;\r
-static uint8 *ExRAM=NULL;\r
-\r
-static uint8 MMC5WRAMsize;\r
-static uint8 MMC5WRAMIndex[8];\r
-\r
-static uint8 MMC5ROMWrProtect[4];\r
-static uint8 MMC5MemIn[5];\r
-\r
-static void MMC5CHRA(void);\r
-static void MMC5CHRB(void);\r
-\r
-typedef struct __cartdata {\r
- uint32 crc32;\r
- uint8 size;\r
-} cartdata;\r
-\r
-#define Sprite16 (PPU[0]&0x20) //Sprites 8x16/8x8 \r
-//#define MMC5SPRVRAMADR(V) &MMC5SPRVPage[(V)>>10][(V)]\r
-static inline uint8 * MMC5BGVRAMADR(uint32 A)\r
-{\r
- if(!Sprite16) {\r
- if(mmc5ABMode==0)\r
- return &MMC5SPRVPage[(A)>>10][(A)];\r
- else \r
- return &MMC5BGVPage[(A)>>10][(A)];\r
- } else return &MMC5BGVPage[(A)>>10][(A)];\r
-}\r
-\r
-static void mmc5_PPUWrite(uint32 A, uint8 V) {\r
- uint32 tmp = A;\r
- extern uint8 PALRAM[0x20];\r
-\r
- if(tmp>=0x3F00)\r
- {\r
- // hmmm....\r
- if(!(tmp&0xf))\r
- PALRAM[0x00]=PALRAM[0x04]=PALRAM[0x08]=PALRAM[0x0C]=V&0x3F;\r
- else if(tmp&3) PALRAM[(tmp&0x1f)]=V&0x3f;\r
- }\r
- else if(tmp<0x2000)\r
- {\r
- if(PPUCHRRAM&(1<<(tmp>>10)))\r
- VPage[tmp>>10][tmp]=V;\r
- } \r
- else\r
- {\r
- if(PPUNTARAM&(1<<((tmp&0xF00)>>10)))\r
- vnapage[((tmp&0xF00)>>10)][tmp&0x3FF]=V;\r
- }\r
-}\r
-\r
-uint8 FASTCALL mmc5_PPURead(uint32 A) {\r
- if(A<0x2000)\r
- {\r
- if(ppuphase == PPUPHASE_BG)\r
- return *MMC5BGVRAMADR(A);\r
- else return MMC5SPRVPage[(A)>>10][(A)];\r
- }\r
- else\r
- { \r
- return vnapage[(A>>10)&0x3][A&0x3FF];\r
- }\r
-}\r
-\r
-\r
-\r
-// ELROM seems to have 8KB of RAM\r
-// ETROM seems to have 16KB of WRAM\r
-// EWROM seems to have 32KB of WRAM\r
-\r
-cartdata MMC5CartList[]=\r
-{\r
- {0x9c18762b,2}, /* L'Empereur */\r
- {0x26533405,2},\r
- {0x6396b988,2},\r
- {0xaca15643,2}, /* Uncharted Waters */\r
- {0xfe3488d1,2}, /* Dai Koukai Jidai */\r
- {0x15fe6d0f,2}, /* BKAC */\r
- {0x39f2ce4b,2}, /* Suikoden */\r
- {0x8ce478db,2}, /* Nobunaga's Ambition 2 */\r
- {0xeee9a682,2},\r
- {0xf9b4240f,2},\r
- {0x1ced086f,2}, /* Ishin no Arashi */\r
- {0xf540677b,4}, /* Nobunaga...Bushou Fuuun Roku */\r
- {0x6f4e4312,4}, /* Aoki Ookami..Genchou */\r
- {0xf011e490,4}, /* Romance of the 3 Kingdoms 2 */\r
- {0x184c2124,4}, /* Sangokushi 2 */\r
- {0xee8e6553,4},\r
-};\r
-\r
-#define MMC5_NOCARTS (sizeof(MMC5CartList)/sizeof(MMC5CartList[0]))\r
-int DetectMMC5WRAMSize(uint32 crc32)\r
-{\r
- int x;\r
- for(x=0;x<MMC5_NOCARTS;x++) {\r
- if(crc32==MMC5CartList[x].crc32) {\r
- FCEU_printf(" >8KB external WRAM present. Use UNIF if you hack the ROM image.\n");\r
- return(MMC5CartList[x].size*8);\r
- }\r
- }\r
-\r
- //mbg 04-aug-08 - previously, this was returning 8KB\r
- //but I changed it to return 64 because unlisted carts are probably homebrews, and they should probably use 64 (why not use it all?)\r
- //ch4 10-dec-08 - then f***ng for what all this shit above? let's give em all this 64k shit! Damn\r
- // homebrew must use it's own emulators or standart features.\r
- //adelikat 20-dec-08 - reverting back to return 64, sounds like it was changed back to 8 simply on principle. FCEUX is all encompassing, and that include\r
- //rom-hacking. We want it to be the best emulator for such purposes. So unless return 64 harms compatibility with anything else, I see now reason not to have it\r
- //mbg 29-mar-09 - I should note that mmc5 is in principle capable of 64KB, even if no real carts ever supported it.\r
- //This does not in principle break any games which share this mapper, and it should be OK for homebrew.\r
- //if there are games which need 8KB instead of 64KB default then lets add them to the list\r
- return 64;\r
-}\r
-\r
-static void BuildWRAMSizeTable(void)\r
-{\r
- int x;\r
- for(x=0;x<8;x++)\r
- {\r
- switch(MMC5WRAMsize)\r
- {\r
- case 0: MMC5WRAMIndex[x]=255; break; //X,X,X,X,X,X,X,X\r
- case 1: MMC5WRAMIndex[x]=(x>3)?255:0; break; //0,0,0,0,X,X,X,X\r
- case 2: MMC5WRAMIndex[x]=(x&4)>>2; break; //0,0,0,0,1,1,1,1\r
- case 4: MMC5WRAMIndex[x]=(x>3)?255:(x&3); break; //0,1,2,3,X,X,X,X\r
- case 8: MMC5WRAMIndex[x]=x; break; //0,1,2,3,4,5,6,7,8 \r
- //mbg 8/6/08 - i added this to support 64KB of wram\r
- //now, I have at least one example (laser invasion) which actually uses size 1 but isnt in the crc list\r
- //so, whereas before my change on 8/4/08 we would have selected size 1, now we select size 8\r
- //this means that we could have just introduced an emulation bug, in case those games happened to \r
- //address, say, page 3. with size 1 that would resolve to [0] but in size 8 it resolves to [3].\r
- //so, you know what to do if there are problems.\r
- }\r
- }\r
-}\r
-\r
-static void MMC5CHRA(void)\r
-{\r
- int x;\r
- switch(mmc5vsize&3)\r
- {\r
- case 0: setchr8(CHRBanksA[7]);\r
- MMC5SPRVROM_BANK8(CHRBanksA[7]);\r
- break;\r
- case 1: setchr4(0x0000,CHRBanksA[3]);\r
- setchr4(0x1000,CHRBanksA[7]);\r
- MMC5SPRVROM_BANK4(0x0000,CHRBanksA[3]);\r
- MMC5SPRVROM_BANK4(0x1000,CHRBanksA[7]);\r
- break;\r
- case 2: setchr2(0x0000,CHRBanksA[1]);\r
- setchr2(0x0800,CHRBanksA[3]);\r
- setchr2(0x1000,CHRBanksA[5]);\r
- setchr2(0x1800,CHRBanksA[7]);\r
- MMC5SPRVROM_BANK2(0x0000,CHRBanksA[1]);\r
- MMC5SPRVROM_BANK2(0x0800,CHRBanksA[3]);\r
- MMC5SPRVROM_BANK2(0x1000,CHRBanksA[5]);\r
- MMC5SPRVROM_BANK2(0x1800,CHRBanksA[7]);\r
- break;\r
- case 3: for(x=0;x<8;x++)\r
- {\r
- setchr1(x<<10,CHRBanksA[x]);\r
- MMC5SPRVROM_BANK1(x<<10,CHRBanksA[x]);\r
- }\r
- break;\r
- }\r
-}\r
-\r
-static void MMC5CHRB(void)\r
-{\r
- int x;\r
- switch(mmc5vsize&3)\r
- {\r
- case 0: setchr8(CHRBanksB[3]);\r
- MMC5BGVROM_BANK8(CHRBanksB[3]);\r
- break;\r
- case 1: setchr4(0x0000,CHRBanksB[3]);\r
- setchr4(0x1000,CHRBanksB[3]);\r
- MMC5BGVROM_BANK4(0x0000,CHRBanksB[3]);\r
- MMC5BGVROM_BANK4(0x1000,CHRBanksB[3]);\r
- break;\r
- case 2: setchr2(0x0000,CHRBanksB[1]);\r
- setchr2(0x0800,CHRBanksB[3]);\r
- setchr2(0x1000,CHRBanksB[1]);\r
- setchr2(0x1800,CHRBanksB[3]);\r
- MMC5BGVROM_BANK2(0x0000,CHRBanksB[1]);\r
- MMC5BGVROM_BANK2(0x0800,CHRBanksB[3]);\r
- MMC5BGVROM_BANK2(0x1000,CHRBanksB[1]);\r
- MMC5BGVROM_BANK2(0x1800,CHRBanksB[3]);\r
- break;\r
- case 3: for(x=0;x<8;x++)\r
- {\r
- setchr1(x<<10,CHRBanksB[x&3]);\r
- MMC5BGVROM_BANK1(x<<10,CHRBanksB[x&3]);\r
- }\r
- break;\r
- }\r
-}\r
-\r
-static void MMC5WRAM(uint32 A, uint32 V)\r
-{\r
- //printf("%02x\n",V);\r
- V=MMC5WRAMIndex[V&7];\r
- if(V!=255)\r
- {\r
- setprg8r(0x10,A,V);\r
- MMC5MemIn[(A-0x6000)>>13]=1;\r
- }\r
- else\r
- MMC5MemIn[(A-0x6000)>>13]=0;\r
-}\r
-\r
-static void MMC5PRG(void)\r
-{\r
- int x;\r
- switch(mmc5psize&3)\r
- {\r
- case 0: MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=\r
- MMC5ROMWrProtect[2]=MMC5ROMWrProtect[3]=1;\r
- setprg32(0x8000,((PRGBanks[1]&0x7F)>>2));\r
- for(x=0;x<4;x++)\r
- MMC5MemIn[1+x]=1;\r
- break;\r
- case 1: if(PRGBanks[1]&0x80)\r
- {\r
- MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=1;\r
- setprg16(0x8000,(PRGBanks[1]>>1));\r
- MMC5MemIn[1]=MMC5MemIn[2]=1;\r
- }\r
- else\r
- {\r
- MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=0;\r
- MMC5WRAM(0x8000,PRGBanks[1]&7&0xFE);\r
- MMC5WRAM(0xA000,(PRGBanks[1]&7&0xFE)+1);\r
- }\r
- MMC5MemIn[3]=MMC5MemIn[4]=1;\r
- MMC5ROMWrProtect[2]=MMC5ROMWrProtect[3]=1;\r
- setprg16(0xC000,(PRGBanks[3]&0x7F)>>1);\r
- break;\r
- case 2: if(PRGBanks[1]&0x80)\r
- {\r
- MMC5MemIn[1]=MMC5MemIn[2]=1;\r
- MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=1;\r
- setprg16(0x8000,(PRGBanks[1]&0x7F)>>1);\r
- }\r
- else\r
- {\r
- MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=0;\r
- MMC5WRAM(0x8000,PRGBanks[1]&7&0xFE);\r
- MMC5WRAM(0xA000,(PRGBanks[1]&7&0xFE)+1);\r
- }\r
- if(PRGBanks[2]&0x80)\r
- {\r
- MMC5ROMWrProtect[2]=1;\r
- MMC5MemIn[3]=1;\r
- setprg8(0xC000,PRGBanks[2]&0x7F);\r
- }\r
- else\r
- {\r
- MMC5ROMWrProtect[2]=0;\r
- MMC5WRAM(0xC000,PRGBanks[2]&7);\r
- }\r
- MMC5MemIn[4]=1;\r
- MMC5ROMWrProtect[3]=1;\r
- setprg8(0xE000,PRGBanks[3]&0x7F);\r
- break;\r
- case 3: for(x=0;x<3;x++)\r
- if(PRGBanks[x]&0x80)\r
- {\r
- MMC5ROMWrProtect[x]=1;\r
- setprg8(0x8000+(x<<13),PRGBanks[x]&0x7F);\r
- MMC5MemIn[1+x]=1;\r
- }\r
- else\r
- {\r
- MMC5ROMWrProtect[x]=0;\r
- MMC5WRAM(0x8000+(x<<13),PRGBanks[x]&7);\r
- }\r
- MMC5MemIn[4]=1;\r
- MMC5ROMWrProtect[3]=1;\r
- setprg8(0xE000,PRGBanks[3]&0x7F);\r
- break;\r
- }\r
-}\r
-\r
-static DECLFW(Mapper5_write)\r
-{\r
- if(A>=0x5120&&A<=0x5127)\r
- {\r
- mmc5ABMode = 0;\r
- CHRBanksA[A&7]=V | ((MMC50x5130&0x3)<<8); //if we had a test case for this then we could test this, but it hasnt been verified\r
- //CHRBanksA[A&7]=V;\r
- MMC5CHRA();\r
- }\r
- else switch(A)\r
- {\r
- case 0x5105: {\r
- int x;\r
- for(x=0;x<4;x++)\r
- {\r
- switch((V>>(x<<1))&3)\r
- {\r
- case 0:\r
- PPUNTARAM|=1<<x;vnapage[x]=NTARAM;break;\r
- case 1:\r
- PPUNTARAM|=1<<x;vnapage[x]=NTARAM+0x400;break;\r
- case 2:\r
- PPUNTARAM|=1<<x;vnapage[x]=ExRAM;break;\r
- case 3:\r
- PPUNTARAM&=~(1<<x);vnapage[x]=MMC5fill;break;\r
- }\r
- }\r
- }\r
- NTAMirroring=V;\r
- break;\r
- case 0x5113: WRAMPage=V;MMC5WRAM(0x6000,V&7);break;\r
- case 0x5100: mmc5psize=V;MMC5PRG();break;\r
- case 0x5101: mmc5vsize=V;\r
- if(!mmc5ABMode)\r
- { MMC5CHRB();MMC5CHRA();}\r
- else\r
- { MMC5CHRA();MMC5CHRB();}\r
- break;\r
- case 0x5114:\r
- case 0x5115:\r
- case 0x5116:\r
- case 0x5117: PRGBanks[A&3]=V;MMC5PRG();break;\r
- case 0x5128:\r
- case 0x5129:\r
- case 0x512a:\r
- case 0x512b: mmc5ABMode=1;\r
- CHRBanksB[A&3]=V;\r
- MMC5CHRB();\r
- break;\r
- case 0x5102: WRAMMaskEnable[0]=V;break;\r
- case 0x5103: WRAMMaskEnable[1]=V;break;\r
- case 0x5104: CHRMode=V;MMC5HackCHRMode=V&3;break;\r
- case 0x5106: if(V!=NTFill)\r
- {\r
- uint32 t;\r
- t=V|(V<<8)|(V<<16)|(V<<24);\r
- FCEU_dwmemset(MMC5fill,t,0x3c0);\r
- }\r
- NTFill=V;\r
- break;\r
- case 0x5107: if(V!=ATFill)\r
- {\r
- unsigned char moop;\r
- uint32 t;\r
- moop=V|(V<<2)|(V<<4)|(V<<6);\r
- t=moop|(moop<<8)|(moop<<16)|(moop<<24);\r
- FCEU_dwmemset(MMC5fill+0x3c0,t,0x40);\r
- }\r
- ATFill=V;\r
- break;\r
- case 0x5130: MMC50x5130=V;break;\r
-\r
- case 0x5200: MMC5HackSPMode=V;break;\r
- case 0x5201: MMC5HackSPScroll=(V>>3)&0x1F;break;\r
- case 0x5202: MMC5HackSPPage=V&0x3F;break;\r
- case 0x5203: X6502_IRQEnd(FCEU_IQEXT);IRQScanline=V;break;\r
- case 0x5204: X6502_IRQEnd(FCEU_IQEXT);IRQEnable=V&0x80;break;\r
- case 0x5205: mul[0]=V;break;\r
- case 0x5206: mul[1]=V;break;\r
- }\r
-}\r
-\r
-static DECLFR(MMC5_ReadROMRAM)\r
-{\r
- if(MMC5MemIn[(A-0x6000)>>13])\r
- return Page[A>>11][A];\r
- else\r
- return X.DB;\r
-}\r
-\r
-static DECLFW(MMC5_WriteROMRAM)\r
-{\r
- if(A>=0x8000)\r
- if(MMC5ROMWrProtect[(A-0x8000)>>13]) return;\r
- if(MMC5MemIn[(A-0x6000)>>13])\r
- if(((WRAMMaskEnable[0]&3)|((WRAMMaskEnable[1]&3)<<2)) == 6) \r
- Page[A>>11][A]=V;\r
-}\r
-\r
-static DECLFW(MMC5_ExRAMWr)\r
-{\r
- if(MMC5HackCHRMode!=3)\r
- ExRAM[A&0x3ff]=V;\r
-}\r
-\r
-static DECLFR(MMC5_ExRAMRd)\r
-{\r
- /* Not sure if this is correct, so I'll comment it out for now. */\r
- //if(MMC5HackCHRMode>=2)\r
- return ExRAM[A&0x3ff];\r
- //else\r
- // return(X.DB);\r
-}\r
-\r
-static DECLFR(MMC5_read)\r
-{\r
- switch(A)\r
- {\r
- case 0x5204: X6502_IRQEnd(FCEU_IQEXT);\r
- {\r
- uint8 x;\r
- x=MMC5IRQR;\r
- if(!fceuindbg)\r
- MMC5IRQR&=0x40;\r
- return x;\r
- }\r
- case 0x5205: return (mul[0]*mul[1]);\r
- case 0x5206: return ((mul[0]*mul[1])>>8);\r
- }\r
- return(X.DB);\r
-}\r
-\r
-void MMC5Synco(void)\r
-{\r
- int x;\r
-\r
- MMC5PRG();\r
- for(x=0;x<4;x++)\r
- {\r
- switch((NTAMirroring>>(x<<1))&3)\r
- {\r
- case 0:PPUNTARAM|=1<<x;vnapage[x]=NTARAM;break;\r
- case 1:PPUNTARAM|=1<<x;vnapage[x]=NTARAM+0x400;break;\r
- case 2:PPUNTARAM|=1<<x;vnapage[x]=ExRAM;break;\r
- case 3:PPUNTARAM&=~(1<<x);vnapage[x]=MMC5fill;break;\r
- }\r
- }\r
- MMC5WRAM(0x6000,WRAMPage&7);\r
- if(!mmc5ABMode)\r
- {\r
- MMC5CHRB();\r
- MMC5CHRA();\r
- }\r
- else\r
- {\r
- MMC5CHRA();\r
- MMC5CHRB();\r
- }\r
- {\r
- uint32 t;\r
- t=NTFill|(NTFill<<8)|(NTFill<<16)|(NTFill<<24);\r
- FCEU_dwmemset(MMC5fill,t,0x3c0);\r
- }\r
- {\r
- unsigned char moop;\r
- uint32 t;\r
- moop=ATFill|(ATFill<<2)|(ATFill<<4)|(ATFill<<6);\r
- t=moop|(moop<<8)|(moop<<16)|(moop<<24);\r
- FCEU_dwmemset(MMC5fill+0x3c0,t,0x40);\r
- }\r
- X6502_IRQEnd(FCEU_IQEXT);\r
- MMC5HackCHRMode=CHRMode&3;\r
-}\r
-\r
-void MMC5_hb(int scanline)\r
-{\r
- if(scanline==240)\r
- {\r
- MMC5LineCounter=0;\r
- MMC5IRQR=0x40;\r
- return;\r
- }\r
- if(MMC5LineCounter<240)\r
- {\r
- if(MMC5LineCounter==IRQScanline)\r
- {\r
- MMC5IRQR|=0x80;\r
- if(IRQEnable&0x80)\r
- X6502_IRQBegin(FCEU_IQEXT);\r
- }\r
- MMC5LineCounter++;\r
- }\r
- if(MMC5LineCounter==240)\r
- MMC5IRQR=0;\r
-}\r
-\r
-void MMC5_StateRestore(int version)\r
-{\r
- MMC5Synco();\r
-}\r
-\r
-typedef struct {\r
- uint16 wl[2];\r
- uint8 env[2];\r
- uint8 enable;\r
- uint8 running;\r
- uint8 raw;\r
- uint8 rawcontrol;\r
- int32 dcount[2];\r
- int32 BC[3];\r
- int32 vcount[2];\r
-} MMC5APU;\r
-\r
-static MMC5APU MMC5Sound;\r
-\r
-\r
-static void Do5PCM()\r
-{\r
- int32 V;\r
- int32 start,end;\r
-\r
- start=MMC5Sound.BC[2];\r
- end=(SOUNDTS<<16)/soundtsinc;\r
- if(end<=start) return;\r
- MMC5Sound.BC[2]=end;\r
-\r
- if(!(MMC5Sound.rawcontrol&0x40) && MMC5Sound.raw)\r
- for(V=start;V<end;V++)\r
- Wave[V>>4]+=MMC5Sound.raw<<1;\r
-}\r
-\r
-static void Do5PCMHQ()\r
-{\r
- uint32 V; //mbg merge 7/17/06 made uint32\r
- if(!(MMC5Sound.rawcontrol&0x40) && MMC5Sound.raw)\r
- for(V=MMC5Sound.BC[2];V<SOUNDTS;V++)\r
- WaveHi[V]+=MMC5Sound.raw<<5;\r
- MMC5Sound.BC[2]=SOUNDTS;\r
-}\r
-\r
-\r
-static DECLFW(Mapper5_SW)\r
-{\r
- A&=0x1F;\r
-\r
- GameExpSound.Fill=MMC5RunSound;\r
- GameExpSound.HiFill=MMC5RunSoundHQ;\r
-\r
- switch(A)\r
- {\r
- case 0x10:if(psfun) psfun();MMC5Sound.rawcontrol=V;break;\r
- case 0x11:if(psfun) psfun();MMC5Sound.raw=V;break;\r
-\r
- case 0x0:\r
- case 0x4://printf("%04x:$%02x\n",A,V&0x30);\r
- if(sfun) sfun(A>>2);\r
- MMC5Sound.env[A>>2]=V;\r
- break;\r
- case 0x2:\r
- case 0x6: if(sfun) sfun(A>>2);\r
- MMC5Sound.wl[A>>2]&=~0x00FF;\r
- MMC5Sound.wl[A>>2]|=V&0xFF;\r
- break;\r
- case 0x3:\r
- case 0x7://printf("%04x:$%02x\n",A,V>>3);\r
- MMC5Sound.wl[A>>2]&=~0x0700;\r
- MMC5Sound.wl[A>>2]|=(V&0x07)<<8;\r
- MMC5Sound.running|=1<<(A>>2);\r
- break;\r
- case 0x15:if(sfun)\r
- {\r
- sfun(0);\r
- sfun(1);\r
- }\r
- MMC5Sound.running&=V;\r
- MMC5Sound.enable=V;\r
- //printf("%02x\n",V);\r
- break;\r
- }\r
-}\r
-\r
-static void Do5SQ(int P)\r
-{\r
- static int tal[4]={1,2,4,6};\r
- int32 V,amp,rthresh,wl;\r
- int32 start,end;\r
-\r
- start=MMC5Sound.BC[P];\r
- end=(SOUNDTS<<16)/soundtsinc;\r
- if(end<=start) return;\r
- MMC5Sound.BC[P]=end;\r
-\r
- wl=MMC5Sound.wl[P]+1;\r
- amp=(MMC5Sound.env[P]&0xF)<<4;\r
- rthresh=tal[(MMC5Sound.env[P]&0xC0)>>6];\r
-\r
- if(wl>=8 && (MMC5Sound.running&(P+1)))\r
- {\r
- int dc,vc;\r
-\r
- wl<<=18;\r
- dc=MMC5Sound.dcount[P];\r
- vc=MMC5Sound.vcount[P];\r
-\r
- for(V=start;V<end;V++)\r
- {\r
- if(dc<rthresh)\r
- Wave[V>>4]+=amp;\r
- vc-=nesincsize;\r
- while(vc<=0)\r
- {\r
- vc+=wl;\r
- dc=(dc+1)&7;\r
- }\r
- }\r
- MMC5Sound.dcount[P]=dc;\r
- MMC5Sound.vcount[P]=vc;\r
- }\r
-}\r
-\r
-static void Do5SQHQ(int P)\r
-{\r
- static int tal[4]={1,2,4,6};\r
- uint32 V; //mbg merge 7/17/06 made uint32\r
- int32 amp,rthresh,wl;\r
-\r
- wl=MMC5Sound.wl[P]+1;\r
- amp=((MMC5Sound.env[P]&0xF)<<8);\r
- rthresh=tal[(MMC5Sound.env[P]&0xC0)>>6];\r
-\r
- if(wl>=8 && (MMC5Sound.running&(P+1)))\r
- {\r
- int dc,vc;\r
-\r
- wl<<=1;\r
-\r
- dc=MMC5Sound.dcount[P];\r
- vc=MMC5Sound.vcount[P];\r
- for(V=MMC5Sound.BC[P];V<SOUNDTS;V++)\r
- {\r
- if(dc<rthresh)\r
- WaveHi[V]+=amp;\r
- vc--;\r
- if(vc<=0) /* Less than zero when first started. */\r
- {\r
- vc=wl;\r
- dc=(dc+1)&7;\r
- }\r
- }\r
- MMC5Sound.dcount[P]=dc;\r
- MMC5Sound.vcount[P]=vc;\r
- }\r
- MMC5Sound.BC[P]=SOUNDTS;\r
-}\r
-\r
-void MMC5RunSoundHQ(void)\r
-{\r
- Do5SQHQ(0);\r
- Do5SQHQ(1);\r
- Do5PCMHQ();\r
-}\r
-\r
-void MMC5HiSync(int32 ts)\r
-{\r
- int x;\r
- for(x=0;x<3;x++) MMC5Sound.BC[x]=ts;\r
-}\r
-\r
-void MMC5RunSound(int Count)\r
-{\r
- int x;\r
- Do5SQ(0);\r
- Do5SQ(1);\r
- Do5PCM();\r
- for(x=0;x<3;x++)\r
- MMC5Sound.BC[x]=Count;\r
-}\r
-\r
-void Mapper5_ESI(void)\r
-{\r
- GameExpSound.RChange=Mapper5_ESI;\r
- if(FSettings.SndRate)\r
- {\r
- if(FSettings.soundq>=1)\r
- {\r
- sfun=Do5SQHQ;\r
- psfun=Do5PCMHQ;\r
- }\r
- else\r
- {\r
- sfun=Do5SQ;\r
- psfun=Do5PCM;\r
- }\r
- }\r
- else\r
- {\r
- sfun=0;\r
- psfun=0;\r
- }\r
- memset(MMC5Sound.BC,0,sizeof(MMC5Sound.BC));\r
- memset(MMC5Sound.vcount,0,sizeof(MMC5Sound.vcount));\r
- GameExpSound.HiSync=MMC5HiSync;\r
-}\r
-\r
-void NSFMMC5_Init(void)\r
-{\r
- memset(&MMC5Sound,0,sizeof(MMC5Sound));\r
- mul[0]=mul[1]=0;\r
- ExRAM=(uint8*)FCEU_gmalloc(1024);\r
- Mapper5_ESI();\r
- SetWriteHandler(0x5c00,0x5fef,MMC5_ExRAMWr);\r
- SetReadHandler(0x5c00,0x5fef,MMC5_ExRAMRd);\r
- MMC5HackCHRMode=2;\r
- SetWriteHandler(0x5000,0x5015,Mapper5_SW);\r
- SetWriteHandler(0x5205,0x5206,Mapper5_write);\r
- SetReadHandler(0x5205,0x5206,MMC5_read);\r
-}\r
-\r
-void NSFMMC5_Close(void)\r
-{\r
- FCEU_gfree(ExRAM);\r
- ExRAM=0;\r
-}\r
-\r
-static void GenMMC5Reset(void)\r
-{\r
- int x;\r
-\r
- for(x=0;x<4;x++) PRGBanks[x]=~0;\r
- for(x=0;x<8;x++) CHRBanksA[x]=~0;\r
- for(x=0;x<4;x++) CHRBanksB[x]=~0;\r
- WRAMMaskEnable[0]=WRAMMaskEnable[1]=~0;\r
-\r
- mmc5psize=mmc5vsize=3;\r
- CHRMode=0;\r
-\r
- NTAMirroring=NTFill=ATFill=0xFF;\r
-\r
- MMC5Synco();\r
-\r
- SetWriteHandler(0x4020,0x5bff,Mapper5_write);\r
- SetReadHandler(0x4020,0x5bff,MMC5_read);\r
-\r
- SetWriteHandler(0x5c00,0x5fff,MMC5_ExRAMWr);\r
- SetReadHandler(0x5c00,0x5fff,MMC5_ExRAMRd);\r
-\r
- SetWriteHandler(0x6000,0xFFFF,MMC5_WriteROMRAM);\r
- SetReadHandler(0x6000,0xFFFF,MMC5_ReadROMRAM);\r
-\r
- SetWriteHandler(0x5000,0x5015,Mapper5_SW);\r
- SetWriteHandler(0x5205,0x5206,Mapper5_write);\r
- SetReadHandler(0x5205,0x5206,MMC5_read);\r
-\r
- //GameHBIRQHook=MMC5_hb;\r
- FCEU_CheatAddRAM(8,0x6000,WRAM);\r
- FCEU_CheatAddRAM(1,0x5c00,ExRAM);\r
-}\r
-\r
-static SFORMAT MMC5_StateRegs[]={\r
- { PRGBanks, 4, "PRGB"},\r
- { CHRBanksA, 16, "CHRA"},\r
- { CHRBanksB, 8, "CHRB"},\r
- { &WRAMPage, 1, "WRMP"},\r
- { WRAMMaskEnable, 2, "WRME"},\r
- { &mmc5ABMode, 1, "ABMD"},\r
- { &IRQScanline, 1, "IRQS"},\r
- { &IRQEnable, 1, "IRQE"},\r
- { &CHRMode, 1, "CHRM"},\r
- { &NTAMirroring, 1, "NTAM"},\r
- { &NTFill, 1, "NTFL"},\r
- { &ATFill, 1, "ATFL"},\r
-\r
- { &MMC5Sound.wl[0], 2|FCEUSTATE_RLSB, "SDW0"},\r
- { &MMC5Sound.wl[1], 2|FCEUSTATE_RLSB, "SDW1"},\r
- { MMC5Sound.env, 2, "SDEV"},\r
- { &MMC5Sound.enable, 1, "SDEN"},\r
- { &MMC5Sound.running, 1, "SDRU"},\r
- { &MMC5Sound.raw, 1, "SDRW"},\r
- { &MMC5Sound.rawcontrol, 1, "SDRC"},\r
- {0}\r
-};\r
-\r
-static void GenMMC5_Init(CartInfo *info, int wsize, int battery)\r
-{\r
- if(wsize)\r
- {\r
- WRAM=(uint8*)FCEU_gmalloc(wsize*1024);\r
- SetupCartPRGMapping(0x10,WRAM,wsize*1024,1);\r
- AddExState(WRAM, wsize*1024, 0, "WRAM");\r
- }\r
-\r
- MMC5fill=(uint8*)FCEU_gmalloc(1024);\r
- ExRAM=(uint8*)FCEU_gmalloc(1024);\r
-\r
- AddExState(MMC5_StateRegs, ~0, 0, 0);\r
- AddExState(WRAM, wsize*1024, 0, "WRAM");\r
- AddExState(ExRAM, 1024, 0, "ERAM");\r
- AddExState(&MMC5HackSPMode, 1, 0, "SPLM");\r
- AddExState(&MMC5HackSPScroll, 1, 0, "SPLS");\r
- AddExState(&MMC5HackSPPage, 1, 0, "SPLP");\r
- AddExState(&MMC50x5130, 1, 0, "5130");\r
-\r
- MMC5WRAMsize=wsize/8;\r
- BuildWRAMSizeTable();\r
- GameStateRestore=MMC5_StateRestore;\r
- info->Power=GenMMC5Reset;\r
-\r
- if(battery)\r
- {\r
- info->SaveGame[0]=WRAM;\r
- if(wsize<=16)\r
- info->SaveGameLen[0]=8192;\r
- else\r
- info->SaveGameLen[0]=32768;\r
- }\r
-\r
- MMC5HackVROMMask=CHRmask4[0];\r
- MMC5HackExNTARAMPtr=ExRAM;\r
- MMC5Hack=1;\r
- MMC5HackVROMPTR=CHRptr[0];\r
- MMC5HackCHRMode=0;\r
- MMC5HackSPMode=MMC5HackSPScroll=MMC5HackSPPage=0;\r
- Mapper5_ESI();\r
-\r
- FFCEUX_PPURead = mmc5_PPURead;\r
- FFCEUX_PPUWrite = mmc5_PPUWrite;\r
-}\r
-\r
-void Mapper5_Init(CartInfo *info)\r
-{\r
- GenMMC5_Init(info, DetectMMC5WRAMSize(info->CRC32), info->battery);\r
-}\r
-\r
-// ELROM seems to have 0KB of WRAM\r
-// EKROM seems to have 8KB of WRAM\r
-// ETROM seems to have 16KB of WRAM\r
-// EWROM seems to have 32KB of WRAM\r
-\r
-// ETROM and EWROM are battery-backed, EKROM isn't.\r
-\r
-void ETROM_Init(CartInfo *info)\r
-{\r
- GenMMC5_Init(info, 16,info->battery);\r
-}\r
-\r
-void ELROM_Init(CartInfo *info)\r
-{\r
- GenMMC5_Init(info,0,0);\r
-}\r
-\r
-void EWROM_Init(CartInfo *info)\r
-{\r
- GenMMC5_Init(info,32,info->battery);\r
-}\r
-\r
-void EKROM_Init(CartInfo *info)\r
-{\r
- GenMMC5_Init(info,8,info->battery);\r
-}\r
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ * Copyright (C) 2002 Xodnizel
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/* None of this code should use any of the iNES bank switching wrappers. */
+
+#include "mapinc.h"
+
+static void (*sfun)(int P);
+static void (*psfun)(void);
+
+void MMC5RunSound(int Count);
+void MMC5RunSoundHQ(void);
+
+static INLINE void MMC5SPRVROM_BANK1(uint32 A,uint32 V)
+{
+ if(CHRptr[0])
+ {
+ V&=CHRmask1[0];
+ MMC5SPRVPage[(A)>>10]=&CHRptr[0][(V)<<10]-(A);
+ }
+}
+
+static INLINE void MMC5BGVROM_BANK1(uint32 A,uint32 V) {if(CHRptr[0]){V&=CHRmask1[0];MMC5BGVPage[(A)>>10]=&CHRptr[0][(V)<<10]-(A);}}
+
+static INLINE void MMC5SPRVROM_BANK2(uint32 A,uint32 V) {if(CHRptr[0]){V&=CHRmask2[0];MMC5SPRVPage[(A)>>10]=MMC5SPRVPage[((A)>>10)+1]=&CHRptr[0][(V)<<11]-(A);}}
+static INLINE void MMC5BGVROM_BANK2(uint32 A,uint32 V) {if(CHRptr[0]){V&=CHRmask2[0];MMC5BGVPage[(A)>>10]=MMC5BGVPage[((A)>>10)+1]=&CHRptr[0][(V)<<11]-(A);}}
+
+static INLINE void MMC5SPRVROM_BANK4(uint32 A,uint32 V) {if(CHRptr[0]){V&=CHRmask4[0];MMC5SPRVPage[(A)>>10]=MMC5SPRVPage[((A)>>10)+1]= MMC5SPRVPage[((A)>>10)+2]=MMC5SPRVPage[((A)>>10)+3]=&CHRptr[0][(V)<<12]-(A);}}
+static INLINE void MMC5BGVROM_BANK4(uint32 A,uint32 V) {if(CHRptr[0]){V&=CHRmask4[0];MMC5BGVPage[(A)>>10]=MMC5BGVPage[((A)>>10)+1]=MMC5BGVPage[((A)>>10)+2]=MMC5BGVPage[((A)>>10)+3]=&CHRptr[0][(V)<<12]-(A);}}
+
+static INLINE void MMC5SPRVROM_BANK8(uint32 V) {if(CHRptr[0]){V&=CHRmask8[0];MMC5SPRVPage[0]=MMC5SPRVPage[1]=MMC5SPRVPage[2]=MMC5SPRVPage[3]=MMC5SPRVPage[4]=MMC5SPRVPage[5]=MMC5SPRVPage[6]=MMC5SPRVPage[7]=&CHRptr[0][(V)<<13];}}
+static INLINE void MMC5BGVROM_BANK8(uint32 V) {if(CHRptr[0]){V&=CHRmask8[0];MMC5BGVPage[0]=MMC5BGVPage[1]=MMC5BGVPage[2]=MMC5BGVPage[3]=MMC5BGVPage[4]=MMC5BGVPage[5]=MMC5BGVPage[6]=MMC5BGVPage[7]=&CHRptr[0][(V)<<13];}}
+
+static uint8 PRGBanks[4];
+static uint8 WRAMPage;
+static uint8 CHRBanksA[8], CHRBanksB[4];
+static uint8 WRAMMaskEnable[2];
+static uint8 ABMode; /* A=0, B=1 */
+
+static uint8 IRQScanline,IRQEnable;
+static uint8 CHRMode, NTAMirroring, NTFill, ATFill;
+
+static uint8 MMC5IRQR;
+static uint8 MMC5LineCounter;
+static uint8 mmc5psize, mmc5vsize;
+static uint8 mul[2];
+
+static uint8 *WRAM=NULL;
+static uint8 *MMC5fill=NULL;
+static uint8 *ExRAM=NULL;
+
+static uint8 MMC5WRAMsize;
+static uint8 MMC5WRAMIndex[8];
+
+static uint8 MMC5ROMWrProtect[4];
+static uint8 MMC5MemIn[5];
+
+static void MMC5CHRA(void);
+static void MMC5CHRB(void);
+
+typedef struct __cartdata {
+ uint32 crc32;
+ uint8 size;
+} cartdata;
+
+
+// ETROM seems to have 16KB of WRAM, ELROM seems to have 8KB
+// EWROM seems to have 32KB of WRAM
+
+cartdata MMC5CartList[]=
+{
+ {0x9c18762b,2}, /* L'Empereur */
+ {0x26533405,2},
+ {0x6396b988,2},
+
+ {0xaca15643,2}, /* Uncharted Waters */
+ {0xfe3488d1,2}, /* Dai Koukai Jidai */
+
+ {0x15fe6d0f,2}, /* BKAC */
+ {0x39f2ce4b,2}, /* Suikoden */
+
+ {0x8ce478db,2}, /* Nobunaga's Ambition 2 */
+ {0xeee9a682,2},
+ {0xf9b4240f,2},
+
+ {0x1ced086f,2}, /* Ishin no Arashi */
+
+ {0xf540677b,4}, /* Nobunaga...Bushou Fuuun Roku */
+
+ {0x6f4e4312,4}, /* Aoki Ookami..Genchou */
+
+ {0xf011e490,4}, /* Romance of the 3 Kingdoms 2 */
+ {0x184c2124,4}, /* Sangokushi 2 */
+ {0xee8e6553,4},
+};
+
+#define MMC5_NOCARTS (sizeof(MMC5CartList)/sizeof(MMC5CartList[0]))
+int DetectMMC5WRAMSize(uint32 crc32)
+{
+ int x;
+ for(x=0;x<MMC5_NOCARTS;x++)
+ if(crc32==MMC5CartList[x].crc32)
+ {
+ FCEU_printf(" >8KB external WRAM present. Use UNIF if you hack the ROM image.\n");
+ return(MMC5CartList[x].size*8);
+ }
+ return(8);
+}
+
+static void BuildWRAMSizeTable(void)
+{
+ int x;
+ for(x=0;x<8;x++)
+ {
+ switch(MMC5WRAMsize)
+ {
+ case 0: MMC5WRAMIndex[x]=255; break;
+ case 1: MMC5WRAMIndex[x]=(x>3)?255:0; break;
+ case 2: MMC5WRAMIndex[x]=(x&4)>>2; break;
+ case 4: MMC5WRAMIndex[x]=(x>3)?255:(x&3); break;
+ }
+ }
+}
+
+static void MMC5CHRA(void)
+{
+ int x;
+ switch(mmc5vsize&3)
+ {
+ case 0: setchr8(CHRBanksA[7]);
+ MMC5SPRVROM_BANK8(CHRBanksA[7]);
+ break;
+ case 1: setchr4(0x0000,CHRBanksA[3]);
+ setchr4(0x1000,CHRBanksA[7]);
+ MMC5SPRVROM_BANK4(0x0000,CHRBanksA[3]);
+ MMC5SPRVROM_BANK4(0x1000,CHRBanksA[7]);
+ break;
+ case 2: setchr2(0x0000,CHRBanksA[1]);
+ setchr2(0x0800,CHRBanksA[3]);
+ setchr2(0x1000,CHRBanksA[5]);
+ setchr2(0x1800,CHRBanksA[7]);
+ MMC5SPRVROM_BANK2(0x0000,CHRBanksA[1]);
+ MMC5SPRVROM_BANK2(0x0800,CHRBanksA[3]);
+ MMC5SPRVROM_BANK2(0x1000,CHRBanksA[5]);
+ MMC5SPRVROM_BANK2(0x1800,CHRBanksA[7]);
+ break;
+ case 3: for(x=0;x<8;x++)
+ {
+ setchr1(x<<10,CHRBanksA[x]);
+ MMC5SPRVROM_BANK1(x<<10,CHRBanksA[x]);
+ }
+ break;
+ }
+}
+
+static void MMC5CHRB(void)
+{
+ int x;
+ switch(mmc5vsize&3)
+ {
+ case 0: setchr8(CHRBanksB[3]);
+ MMC5BGVROM_BANK8(CHRBanksB[3]);
+ break;
+ case 1: setchr4(0x0000,CHRBanksB[3]);
+ setchr4(0x1000,CHRBanksB[3]);
+ MMC5BGVROM_BANK4(0x0000,CHRBanksB[3]);
+ MMC5BGVROM_BANK4(0x1000,CHRBanksB[3]);
+ break;
+ case 2: setchr2(0x0000,CHRBanksB[1]);
+ setchr2(0x0800,CHRBanksB[3]);
+ setchr2(0x1000,CHRBanksB[1]);
+ setchr2(0x1800,CHRBanksB[3]);
+ MMC5BGVROM_BANK2(0x0000,CHRBanksB[1]);
+ MMC5BGVROM_BANK2(0x0800,CHRBanksB[3]);
+ MMC5BGVROM_BANK2(0x1000,CHRBanksB[1]);
+ MMC5BGVROM_BANK2(0x1800,CHRBanksB[3]);
+ break;
+ case 3: for(x=0;x<8;x++)
+ {
+ setchr1(x<<10,CHRBanksB[x&3]);
+ MMC5BGVROM_BANK1(x<<10,CHRBanksB[x&3]);
+ }
+ break;
+ }
+}
+
+static void FASTAPASS(2) MMC5WRAM(uint32 A, uint32 V)
+{
+ //printf("%02x\n",V);
+ V=MMC5WRAMIndex[V&7];
+ if(V!=255)
+ {
+ setprg8r(0x10,A,V);
+ MMC5MemIn[(A-0x6000)>>13]=1;
+ }
+ else
+ MMC5MemIn[(A-0x6000)>>13]=0;
+}
+
+static void MMC5PRG(void)
+{
+ int x;
+ switch(mmc5psize&3)
+ {
+ case 0: MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=
+ MMC5ROMWrProtect[2]=MMC5ROMWrProtect[3]=1;
+ setprg32(0x8000,((PRGBanks[1]&0x7F)>>2));
+ for(x=0;x<4;x++)
+ MMC5MemIn[1+x]=1;
+ break;
+ case 1: if(PRGBanks[1]&0x80)
+ {
+ MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=1;
+ setprg16(0x8000,(PRGBanks[1]>>1));
+ MMC5MemIn[1]=MMC5MemIn[2]=1;
+ }
+ else
+ {
+ MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=0;
+ MMC5WRAM(0x8000,PRGBanks[1]&7&0xFE);
+ MMC5WRAM(0xA000,(PRGBanks[1]&7&0xFE)+1);
+ }
+ MMC5MemIn[3]=MMC5MemIn[4]=1;
+ MMC5ROMWrProtect[2]=MMC5ROMWrProtect[3]=1;
+ setprg16(0xC000,(PRGBanks[3]&0x7F)>>1);
+ break;
+ case 2: if(PRGBanks[1]&0x80)
+ {
+ MMC5MemIn[1]=MMC5MemIn[2]=1;
+ MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=1;
+ setprg16(0x8000,(PRGBanks[1]&0x7F)>>1);
+ }
+ else
+ {
+ MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=0;
+ MMC5WRAM(0x8000,PRGBanks[1]&7&0xFE);
+ MMC5WRAM(0xA000,(PRGBanks[1]&7&0xFE)+1);
+ }
+ if(PRGBanks[2]&0x80)
+ {
+ MMC5ROMWrProtect[2]=1;
+ MMC5MemIn[3]=1;
+ setprg8(0xC000,PRGBanks[2]&0x7F);
+ }
+ else
+ {
+ MMC5ROMWrProtect[2]=0;
+ MMC5WRAM(0xC000,PRGBanks[2]&7);
+ }
+ MMC5MemIn[4]=1;
+ MMC5ROMWrProtect[3]=1;
+ setprg8(0xE000,PRGBanks[3]&0x7F);
+ break;
+ case 3: for(x=0;x<3;x++)
+ if(PRGBanks[x]&0x80)
+ {
+ MMC5ROMWrProtect[x]=1;
+ setprg8(0x8000+(x<<13),PRGBanks[x]&0x7F);
+ MMC5MemIn[1+x]=1;
+ }
+ else
+ {
+ MMC5ROMWrProtect[x]=0;
+ MMC5WRAM(0x8000+(x<<13),PRGBanks[x]&7);
+ }
+ MMC5MemIn[4]=1;
+ MMC5ROMWrProtect[3]=1;
+ setprg8(0xE000,PRGBanks[3]&0x7F);
+ break;
+ }
+}
+
+static DECLFW(Mapper5_write)
+{
+ if(A>=0x5120&&A<=0x5127)
+ {
+ ABMode = 0;
+ CHRBanksA[A&7]=V;
+ MMC5CHRA();
+ }
+ else switch(A)
+ {
+ case 0x5105: {
+ int x;
+ for(x=0;x<4;x++)
+ {
+ switch((V>>(x<<1))&3)
+ {
+ case 0:PPUNTARAM|=1<<x;vnapage[x]=NTARAM;break;
+ case 1:PPUNTARAM|=1<<x;vnapage[x]=NTARAM+0x400;break;
+ case 2:PPUNTARAM|=1<<x;vnapage[x]=ExRAM;break;
+ case 3:PPUNTARAM&=~(1<<x);vnapage[x]=MMC5fill;break;
+ }
+ }
+ }
+ NTAMirroring=V;
+ break;
+ case 0x5113: WRAMPage=V;MMC5WRAM(0x6000,V&7);break;
+ case 0x5100: mmc5psize=V;MMC5PRG();break;
+ case 0x5101: mmc5vsize=V;
+ if(!ABMode)
+ { MMC5CHRB();MMC5CHRA();}
+ else
+ { MMC5CHRA();MMC5CHRB();}
+ break;
+ case 0x5114:
+ case 0x5115:
+ case 0x5116:
+ case 0x5117: PRGBanks[A&3]=V;MMC5PRG();break;
+ case 0x5128:
+ case 0x5129:
+ case 0x512a:
+ case 0x512b: ABMode=1;
+ CHRBanksB[A&3]=V;
+ MMC5CHRB();
+ break;
+ case 0x5102: WRAMMaskEnable[0]=V;break;
+ case 0x5103: WRAMMaskEnable[1]=V;break;
+ case 0x5104: CHRMode=V;MMC5HackCHRMode=V&3;break;
+ case 0x5106: if(V!=NTFill)
+ {
+ uint32 t;
+ t=V|(V<<8)|(V<<16)|(V<<24);
+ FCEU_dwmemset(MMC5fill,t,0x3c0);
+ }
+ NTFill=V;
+ break;
+ case 0x5107: if(V!=ATFill)
+ {
+ unsigned char moop;
+ uint32 t;
+ moop=V|(V<<2)|(V<<4)|(V<<6);
+ t=moop|(moop<<8)|(moop<<16)|(moop<<24);
+ FCEU_dwmemset(MMC5fill+0x3c0,t,0x40);
+ }
+ ATFill=V;
+ break;
+ case 0x5200: MMC5HackSPMode=V;break;
+ case 0x5201: MMC5HackSPScroll=(V>>3)&0x1F;break;
+ case 0x5202: MMC5HackSPPage=V&0x3F;break;
+ case 0x5203: X6502_IRQEnd(FCEU_IQEXT);IRQScanline=V;break;
+ case 0x5204: X6502_IRQEnd(FCEU_IQEXT);IRQEnable=V&0x80;break;
+ case 0x5205: mul[0]=V;break;
+ case 0x5206: mul[1]=V;break;
+ }
+}
+
+static DECLFR(MMC5_ReadROMRAM)
+{
+ if(MMC5MemIn[(A-0x6000)>>13])
+ return Page[A>>11][A];
+ else
+ return X.DB;
+}
+
+static DECLFW(MMC5_WriteROMRAM)
+{
+ if(A>=0x8000)
+ if(MMC5ROMWrProtect[(A-0x8000)>>13]) return;
+ if(MMC5MemIn[(A-0x6000)>>13])
+ if(((WRAMMaskEnable[0]&3)|((WRAMMaskEnable[1]&3)<<2)) == 6) Page[A>>11][A]=V;
+}
+
+static DECLFW(MMC5_ExRAMWr)
+{
+ if(MMC5HackCHRMode!=3)
+ ExRAM[A&0x3ff]=V;
+}
+
+static DECLFR(MMC5_ExRAMRd)
+{
+ /* Not sure if this is correct, so I'll comment it out for now. */
+ //if(MMC5HackCHRMode>=2)
+ return ExRAM[A&0x3ff];
+ //else
+ // return(X.DB);
+}
+
+static DECLFR(MMC5_read)
+{
+ switch(A)
+ {
+ case 0x5204: X6502_IRQEnd(FCEU_IQEXT);
+ {
+ uint8 x;
+ x=MMC5IRQR;
+ #ifdef FCEUDEF_DEBUGGER
+ if(!fceuindbg)
+ #endif
+ MMC5IRQR&=0x40;
+ return x;
+ }
+ case 0x5205: return (mul[0]*mul[1]);
+ case 0x5206: return ((mul[0]*mul[1])>>8);
+ }
+ return(X.DB);
+}
+
+void MMC5Synco(void)
+{
+ int x;
+
+ MMC5PRG();
+ for(x=0;x<4;x++)
+ {
+ switch((NTAMirroring>>(x<<1))&3)
+ {
+ case 0:PPUNTARAM|=1<<x;vnapage[x]=NTARAM;break;
+ case 1:PPUNTARAM|=1<<x;vnapage[x]=NTARAM+0x400;break;
+ case 2:PPUNTARAM|=1<<x;vnapage[x]=ExRAM;break;
+ case 3:PPUNTARAM&=~(1<<x);vnapage[x]=MMC5fill;break;
+ }
+ }
+ MMC5WRAM(0x6000,WRAMPage&7);
+ if(!ABMode)
+ {
+ MMC5CHRB();
+ MMC5CHRA();
+ }
+ else
+ {
+ MMC5CHRA();
+ MMC5CHRB();
+ }
+ {
+ uint32 t;
+ t=NTFill|(NTFill<<8)|(NTFill<<16)|(NTFill<<24);
+ FCEU_dwmemset(MMC5fill,t,0x3c0);
+ }
+ {
+ unsigned char moop;
+ uint32 t;
+ moop=ATFill|(ATFill<<2)|(ATFill<<4)|(ATFill<<6);
+ t=moop|(moop<<8)|(moop<<16)|(moop<<24);
+ FCEU_dwmemset(MMC5fill+0x3c0,t,0x40);
+ }
+ X6502_IRQEnd(FCEU_IQEXT);
+ MMC5HackCHRMode=CHRMode&3;
+}
+
+void MMC5_hb(int scanline)
+{
+ if(scanline==240)
+ {
+ MMC5LineCounter=0;
+ MMC5IRQR=0x40;
+ return;
+ }
+ if(MMC5LineCounter<240)
+ {
+ if(MMC5LineCounter==IRQScanline)
+ {
+ MMC5IRQR|=0x80;
+ if(IRQEnable&0x80)
+ X6502_IRQBegin(FCEU_IQEXT);
+ }
+ MMC5LineCounter++;
+ }
+ if(MMC5LineCounter==240)
+ MMC5IRQR=0;
+}
+
+void MMC5_StateRestore(int version)
+{
+ MMC5Synco();
+}
+
+typedef struct {
+ uint16 wl[2];
+ uint8 env[2];
+ uint8 enable;
+ uint8 running;
+ uint8 raw;
+ uint8 rawcontrol;
+ int32 dcount[2];
+ int32 BC[3];
+ int32 vcount[2];
+} MMC5APU;
+
+static MMC5APU MMC5Sound;
+
+
+static void Do5PCM()
+{
+ int32 V;
+ int32 start,end;
+
+ start=MMC5Sound.BC[2];
+ end=(SOUNDTS<<16)/soundtsinc;
+ if(end<=start) return;
+ MMC5Sound.BC[2]=end;
+
+ if(!(MMC5Sound.rawcontrol&0x40) && MMC5Sound.raw)
+ for(V=start;V<end;V++)
+ Wave[V>>4]+=MMC5Sound.raw<<1;
+}
+
+static void Do5PCMHQ()
+{
+ int32 V;
+ if(!(MMC5Sound.rawcontrol&0x40) && MMC5Sound.raw)
+ for(V=MMC5Sound.BC[2];V<SOUNDTS;V++)
+ WaveHi[V]+=MMC5Sound.raw<<5;
+ MMC5Sound.BC[2]=SOUNDTS;
+}
+
+
+static DECLFW(Mapper5_SW)
+{
+ A&=0x1F;
+
+ GameExpSound.Fill=MMC5RunSound;
+ GameExpSound.HiFill=MMC5RunSoundHQ;
+
+ switch(A)
+ {
+ case 0x10:if(psfun) psfun();MMC5Sound.rawcontrol=V;break;
+ case 0x11:if(psfun) psfun();MMC5Sound.raw=V;break;
+
+ case 0x0:
+ case 0x4://printf("%04x:$%02x\n",A,V&0x30);
+ if(sfun) sfun(A>>2);
+ MMC5Sound.env[A>>2]=V;
+ break;
+ case 0x2:
+ case 0x6: if(sfun) sfun(A>>2);
+ MMC5Sound.wl[A>>2]&=~0x00FF;
+ MMC5Sound.wl[A>>2]|=V&0xFF;
+ break;
+ case 0x3:
+ case 0x7://printf("%04x:$%02x\n",A,V>>3);
+ MMC5Sound.wl[A>>2]&=~0x0700;
+ MMC5Sound.wl[A>>2]|=(V&0x07)<<8;
+ MMC5Sound.running|=1<<(A>>2);
+ break;
+ case 0x15:if(sfun)
+ {
+ sfun(0);
+ sfun(1);
+ }
+ MMC5Sound.running&=V;
+ MMC5Sound.enable=V;
+ //printf("%02x\n",V);
+ break;
+ }
+}
+
+static void Do5SQ(int P)
+{
+ static int tal[4]={1,2,4,6};
+ int32 V,amp,rthresh,wl;
+ int32 start,end;
+
+ start=MMC5Sound.BC[P];
+ end=(SOUNDTS<<16)/soundtsinc;
+ if(end<=start) return;
+ MMC5Sound.BC[P]=end;
+
+ wl=MMC5Sound.wl[P]+1;
+ amp=(MMC5Sound.env[P]&0xF)<<4;
+ rthresh=tal[(MMC5Sound.env[P]&0xC0)>>6];
+
+ if(wl>=8 && (MMC5Sound.running&(P+1)))
+ {
+ int dc,vc;
+
+ wl<<=18;
+ dc=MMC5Sound.dcount[P];
+ vc=MMC5Sound.vcount[P];
+
+ for(V=start;V<end;V++)
+ {
+ if(dc<rthresh)
+ Wave[V>>4]+=amp;
+ vc-=nesincsize;
+ while(vc<=0)
+ {
+ vc+=wl;
+ dc=(dc+1)&7;
+ }
+ }
+ MMC5Sound.dcount[P]=dc;
+ MMC5Sound.vcount[P]=vc;
+ }
+}
+
+static void Do5SQHQ(int P)
+{
+ static int tal[4]={1,2,4,6};
+ int32 V,amp,rthresh,wl;
+
+ wl=MMC5Sound.wl[P]+1;
+ amp=((MMC5Sound.env[P]&0xF)<<8);
+ rthresh=tal[(MMC5Sound.env[P]&0xC0)>>6];
+
+ if(wl>=8 && (MMC5Sound.running&(P+1)))
+ {
+ int dc,vc;
+
+ wl<<=1;
+
+ dc=MMC5Sound.dcount[P];
+ vc=MMC5Sound.vcount[P];
+ for(V=MMC5Sound.BC[P];V<SOUNDTS;V++)
+ {
+ if(dc<rthresh)
+ WaveHi[V]+=amp;
+ vc--;
+ if(vc<=0) /* Less than zero when first started. */
+ {
+ vc=wl;
+ dc=(dc+1)&7;
+ }
+ }
+ MMC5Sound.dcount[P]=dc;
+ MMC5Sound.vcount[P]=vc;
+ }
+ MMC5Sound.BC[P]=SOUNDTS;
+}
+
+void MMC5RunSoundHQ(void)
+{
+ Do5SQHQ(0);
+ Do5SQHQ(1);
+ Do5PCMHQ();
+}
+
+void MMC5HiSync(int32 ts)
+{
+ int x;
+ for(x=0;x<3;x++) MMC5Sound.BC[x]=ts;
+}
+
+void MMC5RunSound(int Count)
+{
+ int x;
+ Do5SQ(0);
+ Do5SQ(1);
+ Do5PCM();
+ for(x=0;x<3;x++)
+ MMC5Sound.BC[x]=Count;
+}
+
+void Mapper5_ESI(void)
+{
+ GameExpSound.RChange=Mapper5_ESI;
+ if(FSettings.SndRate)
+ {
+ if(FSettings.soundq>=1)
+ {
+ sfun=Do5SQHQ;
+ psfun=Do5PCMHQ;
+ }
+ else
+ {
+ sfun=Do5SQ;
+ psfun=Do5PCM;
+ }
+ }
+ else
+ {
+ sfun=0;
+ psfun=0;
+ }
+ memset(MMC5Sound.BC,0,sizeof(MMC5Sound.BC));
+ memset(MMC5Sound.vcount,0,sizeof(MMC5Sound.vcount));
+ GameExpSound.HiSync=MMC5HiSync;
+}
+
+void NSFMMC5_Init(void)
+{
+ memset(&MMC5Sound,0,sizeof(MMC5Sound));
+ mul[0]=mul[1]=0;
+ ExRAM=(uint8*)FCEU_gmalloc(1024);
+ Mapper5_ESI();
+ SetWriteHandler(0x5c00,0x5fef,MMC5_ExRAMWr);
+ SetReadHandler(0x5c00,0x5fef,MMC5_ExRAMRd);
+ MMC5HackCHRMode=2;
+ SetWriteHandler(0x5000,0x5015,Mapper5_SW);
+ SetWriteHandler(0x5205,0x5206,Mapper5_write);
+ SetReadHandler(0x5205,0x5206,MMC5_read);
+}
+
+void NSFMMC5_Close(void)
+{
+ FCEU_gfree(ExRAM);
+ ExRAM=0;
+}
+
+static void GenMMC5Reset(void)
+{
+ int x;
+
+ for(x=0;x<4;x++) PRGBanks[x]=~0;
+ for(x=0;x<8;x++) CHRBanksA[x]=~0;
+ for(x=0;x<4;x++) CHRBanksB[x]=~0;
+ WRAMMaskEnable[0]=WRAMMaskEnable[1]=~0;
+
+ mmc5psize=mmc5vsize=3;
+ CHRMode=0;
+
+ NTAMirroring=NTFill=ATFill=0xFF;
+
+ MMC5Synco();
+
+ SetWriteHandler(0x4020,0x5bff,Mapper5_write);
+ SetReadHandler(0x4020,0x5bff,MMC5_read);
+
+ SetWriteHandler(0x5c00,0x5fff,MMC5_ExRAMWr);
+ SetReadHandler(0x5c00,0x5fff,MMC5_ExRAMRd);
+
+ SetWriteHandler(0x6000,0xFFFF,MMC5_WriteROMRAM);
+ SetReadHandler(0x6000,0xFFFF,MMC5_ReadROMRAM);
+
+ SetWriteHandler(0x5000,0x5015,Mapper5_SW);
+ SetWriteHandler(0x5205,0x5206,Mapper5_write);
+ SetReadHandler(0x5205,0x5206,MMC5_read);
+
+ //GameHBIRQHook=MMC5_hb;
+ FCEU_CheatAddRAM(8,0x6000,WRAM);
+ FCEU_CheatAddRAM(1,0x5c00,ExRAM);
+}
+
+static SFORMAT MMC5_StateRegs[]={
+ { PRGBanks, 4, "PRGB"},
+ { CHRBanksA, 8, "CHRA"},
+ { CHRBanksB, 4, "CHRB"},
+ { &WRAMPage, 1, "WRMP"},
+ { WRAMMaskEnable, 2, "WRME"},
+ { &ABMode, 1, "ABMD"},
+ { &IRQScanline, 1, "IRQS"},
+ { &IRQEnable, 1, "IRQE"},
+ { &CHRMode, 1, "CHRM"},
+ { &NTAMirroring, 1, "NTAM"},
+ { &NTFill, 1, "NTFL"},
+ { &ATFill, 1, "ATFL"},
+
+ { &MMC5Sound.wl[0], 2|FCEUSTATE_RLSB, "SDW0"},
+ { &MMC5Sound.wl[1], 2|FCEUSTATE_RLSB, "SDW1"},
+ { MMC5Sound.env, 2, "SDEV"},
+ { &MMC5Sound.enable, 1, "SDEN"},
+ { &MMC5Sound.running, 1, "SDRU"},
+ { &MMC5Sound.raw, 1, "SDRW"},
+ { &MMC5Sound.rawcontrol, 1, "SDRC"},
+ {0}
+};
+
+static void GenMMC5_Init(CartInfo *info, int wsize, int battery)
+{
+ if(wsize)
+ {
+ WRAM=(uint8*)FCEU_gmalloc(wsize*1024);
+ SetupCartPRGMapping(0x10,WRAM,wsize*1024,1);
+ AddExState(WRAM, wsize*1024, 0, "WRAM");
+ }
+
+ MMC5fill=(uint8*)FCEU_gmalloc(1024);
+ ExRAM=(uint8*)FCEU_gmalloc(1024);
+
+ AddExState(MMC5_StateRegs, ~0, 0, 0);
+ AddExState(WRAM, wsize*1024, 0, "WRAM");
+ AddExState(ExRAM, 1024, 0, "ERAM");
+ AddExState(&MMC5HackSPMode, 1, 0, "SPLM");
+ AddExState(&MMC5HackSPScroll, 1, 0, "SPLS");
+ AddExState(&MMC5HackSPPage, 1, 0, "SPLP");
+
+ MMC5WRAMsize=wsize/8;
+ BuildWRAMSizeTable();
+ GameStateRestore=MMC5_StateRestore;
+ info->Power=GenMMC5Reset;
+
+ if(battery)
+ {
+ info->SaveGame[0]=WRAM;
+ if(wsize<=16)
+ info->SaveGameLen[0]=8192;
+ else
+ info->SaveGameLen[0]=32768;
+ }
+
+ MMC5HackVROMMask=CHRmask4[0];
+ MMC5HackExNTARAMPtr=ExRAM;
+ MMC5Hack=1;
+ MMC5HackVROMPTR=CHRptr[0];
+ MMC5HackCHRMode=0;
+ MMC5HackSPMode=MMC5HackSPScroll=MMC5HackSPPage=0;
+ Mapper5_ESI();
+}
+
+void Mapper5_Init(CartInfo *info)
+{
+ GenMMC5_Init(info, DetectMMC5WRAMSize(info->CRC32), info->battery);
+}
+
+// ELROM seems to have 0KB of WRAM
+// EKROM seems to have 8KB of WRAM
+// ETROM seems to have 16KB of WRAM
+// EWROM seems to have 32KB of WRAM
+
+// ETROM and EWROM are battery-backed, EKROM isn't.
+
+void ETROM_Init(CartInfo *info)
+{
+ GenMMC5_Init(info, 16,info->battery);
+}
+
+void ELROM_Init(CartInfo *info)
+{
+ GenMMC5_Init(info,0,0);
+}
+
+void EWROM_Init(CartInfo *info)
+{
+ GenMMC5_Init(info,32,info->battery);
+}
+
+void EKROM_Init(CartInfo *info)
+{
+ GenMMC5_Init(info,8,info->battery);
+}
notaz.gp2x.de / fceu.git / blobdiff