| 1 | /* FCE Ultra - NES/Famicom Emulator |
| 2 | * |
| 3 | * Copyright notice for this file: |
| 4 | * Copyright (C) 2002 Xodnizel |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | |
| 21 | /* None of this code should use any of the iNES bank switching wrappers. */ |
| 22 | |
| 23 | #include "mapinc.h" |
| 24 | |
| 25 | static void (*sfun)(int P); |
| 26 | static void (*psfun)(void); |
| 27 | |
| 28 | void MMC5RunSound(int Count); |
| 29 | void MMC5RunSoundHQ(void); |
| 30 | |
| 31 | static INLINE void MMC5SPRVROM_BANK1(uint32 A,uint32 V) |
| 32 | { |
| 33 | if(CHRptr[0]) |
| 34 | { |
| 35 | V&=CHRmask1[0]; |
| 36 | MMC5SPRVPage[(A)>>10]=&CHRptr[0][(V)<<10]-(A); |
| 37 | } |
| 38 | } |
| 39 | |
| 40 | static INLINE void MMC5BGVROM_BANK1(uint32 A,uint32 V) {if(CHRptr[0]){V&=CHRmask1[0];MMC5BGVPage[(A)>>10]=&CHRptr[0][(V)<<10]-(A);}} |
| 41 | |
| 42 | 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);}} |
| 43 | 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);}} |
| 44 | |
| 45 | 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);}} |
| 46 | 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);}} |
| 47 | |
| 48 | 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];}} |
| 49 | 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];}} |
| 50 | |
| 51 | static uint8 PRGBanks[4]; |
| 52 | static uint8 WRAMPage; |
| 53 | static uint8 CHRBanksA[8], CHRBanksB[4]; |
| 54 | static uint8 WRAMMaskEnable[2]; |
| 55 | static uint8 ABMode; /* A=0, B=1 */ |
| 56 | |
| 57 | static uint8 IRQScanline,IRQEnable; |
| 58 | static uint8 CHRMode, NTAMirroring, NTFill, ATFill; |
| 59 | |
| 60 | static uint8 MMC5IRQR; |
| 61 | static uint8 MMC5LineCounter; |
| 62 | static uint8 mmc5psize, mmc5vsize; |
| 63 | static uint8 mul[2]; |
| 64 | |
| 65 | static uint8 *WRAM=NULL; |
| 66 | static uint8 *MMC5fill=NULL; |
| 67 | static uint8 *ExRAM=NULL; |
| 68 | |
| 69 | static uint8 MMC5WRAMsize; |
| 70 | static uint8 MMC5WRAMIndex[8]; |
| 71 | |
| 72 | static uint8 MMC5ROMWrProtect[4]; |
| 73 | static uint8 MMC5MemIn[5]; |
| 74 | |
| 75 | static void MMC5CHRA(void); |
| 76 | static void MMC5CHRB(void); |
| 77 | |
| 78 | typedef struct __cartdata { |
| 79 | uint32 crc32; |
| 80 | uint8 size; |
| 81 | } cartdata; |
| 82 | |
| 83 | |
| 84 | // ETROM seems to have 16KB of WRAM, ELROM seems to have 8KB |
| 85 | // EWROM seems to have 32KB of WRAM |
| 86 | |
| 87 | cartdata MMC5CartList[]= |
| 88 | { |
| 89 | {0x9c18762b,2}, /* L'Empereur */ |
| 90 | {0x26533405,2}, |
| 91 | {0x6396b988,2}, |
| 92 | |
| 93 | {0xaca15643,2}, /* Uncharted Waters */ |
| 94 | {0xfe3488d1,2}, /* Dai Koukai Jidai */ |
| 95 | |
| 96 | {0x15fe6d0f,2}, /* BKAC */ |
| 97 | {0x39f2ce4b,2}, /* Suikoden */ |
| 98 | |
| 99 | {0x8ce478db,2}, /* Nobunaga's Ambition 2 */ |
| 100 | {0xeee9a682,2}, |
| 101 | {0xf9b4240f,2}, |
| 102 | |
| 103 | {0x1ced086f,2}, /* Ishin no Arashi */ |
| 104 | |
| 105 | {0xf540677b,4}, /* Nobunaga...Bushou Fuuun Roku */ |
| 106 | |
| 107 | {0x6f4e4312,4}, /* Aoki Ookami..Genchou */ |
| 108 | |
| 109 | {0xf011e490,4}, /* Romance of the 3 Kingdoms 2 */ |
| 110 | {0x184c2124,4}, /* Sangokushi 2 */ |
| 111 | {0xee8e6553,4}, |
| 112 | }; |
| 113 | |
| 114 | #define MMC5_NOCARTS (sizeof(MMC5CartList)/sizeof(MMC5CartList[0])) |
| 115 | int DetectMMC5WRAMSize(uint32 crc32) |
| 116 | { |
| 117 | int x; |
| 118 | for(x=0;x<MMC5_NOCARTS;x++) |
| 119 | if(crc32==MMC5CartList[x].crc32) |
| 120 | { |
| 121 | FCEU_printf(" >8KB external WRAM present. Use UNIF if you hack the ROM image.\n"); |
| 122 | return(MMC5CartList[x].size*8); |
| 123 | } |
| 124 | return(8); |
| 125 | } |
| 126 | |
| 127 | static void BuildWRAMSizeTable(void) |
| 128 | { |
| 129 | int x; |
| 130 | for(x=0;x<8;x++) |
| 131 | { |
| 132 | switch(MMC5WRAMsize) |
| 133 | { |
| 134 | case 0: MMC5WRAMIndex[x]=255; break; |
| 135 | case 1: MMC5WRAMIndex[x]=(x>3)?255:0; break; |
| 136 | case 2: MMC5WRAMIndex[x]=(x&4)>>2; break; |
| 137 | case 4: MMC5WRAMIndex[x]=(x>3)?255:(x&3); break; |
| 138 | } |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | static void MMC5CHRA(void) |
| 143 | { |
| 144 | int x; |
| 145 | switch(mmc5vsize&3) |
| 146 | { |
| 147 | case 0: setchr8(CHRBanksA[7]); |
| 148 | MMC5SPRVROM_BANK8(CHRBanksA[7]); |
| 149 | break; |
| 150 | case 1: setchr4(0x0000,CHRBanksA[3]); |
| 151 | setchr4(0x1000,CHRBanksA[7]); |
| 152 | MMC5SPRVROM_BANK4(0x0000,CHRBanksA[3]); |
| 153 | MMC5SPRVROM_BANK4(0x1000,CHRBanksA[7]); |
| 154 | break; |
| 155 | case 2: setchr2(0x0000,CHRBanksA[1]); |
| 156 | setchr2(0x0800,CHRBanksA[3]); |
| 157 | setchr2(0x1000,CHRBanksA[5]); |
| 158 | setchr2(0x1800,CHRBanksA[7]); |
| 159 | MMC5SPRVROM_BANK2(0x0000,CHRBanksA[1]); |
| 160 | MMC5SPRVROM_BANK2(0x0800,CHRBanksA[3]); |
| 161 | MMC5SPRVROM_BANK2(0x1000,CHRBanksA[5]); |
| 162 | MMC5SPRVROM_BANK2(0x1800,CHRBanksA[7]); |
| 163 | break; |
| 164 | case 3: for(x=0;x<8;x++) |
| 165 | { |
| 166 | setchr1(x<<10,CHRBanksA[x]); |
| 167 | MMC5SPRVROM_BANK1(x<<10,CHRBanksA[x]); |
| 168 | } |
| 169 | break; |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | static void MMC5CHRB(void) |
| 174 | { |
| 175 | int x; |
| 176 | switch(mmc5vsize&3) |
| 177 | { |
| 178 | case 0: setchr8(CHRBanksB[3]); |
| 179 | MMC5BGVROM_BANK8(CHRBanksB[3]); |
| 180 | break; |
| 181 | case 1: setchr4(0x0000,CHRBanksB[3]); |
| 182 | setchr4(0x1000,CHRBanksB[3]); |
| 183 | MMC5BGVROM_BANK4(0x0000,CHRBanksB[3]); |
| 184 | MMC5BGVROM_BANK4(0x1000,CHRBanksB[3]); |
| 185 | break; |
| 186 | case 2: setchr2(0x0000,CHRBanksB[1]); |
| 187 | setchr2(0x0800,CHRBanksB[3]); |
| 188 | setchr2(0x1000,CHRBanksB[1]); |
| 189 | setchr2(0x1800,CHRBanksB[3]); |
| 190 | MMC5BGVROM_BANK2(0x0000,CHRBanksB[1]); |
| 191 | MMC5BGVROM_BANK2(0x0800,CHRBanksB[3]); |
| 192 | MMC5BGVROM_BANK2(0x1000,CHRBanksB[1]); |
| 193 | MMC5BGVROM_BANK2(0x1800,CHRBanksB[3]); |
| 194 | break; |
| 195 | case 3: for(x=0;x<8;x++) |
| 196 | { |
| 197 | setchr1(x<<10,CHRBanksB[x&3]); |
| 198 | MMC5BGVROM_BANK1(x<<10,CHRBanksB[x&3]); |
| 199 | } |
| 200 | break; |
| 201 | } |
| 202 | } |
| 203 | |
| 204 | static void FASTAPASS(2) MMC5WRAM(uint32 A, uint32 V) |
| 205 | { |
| 206 | //printf("%02x\n",V); |
| 207 | V=MMC5WRAMIndex[V&7]; |
| 208 | if(V!=255) |
| 209 | { |
| 210 | setprg8r(0x10,A,V); |
| 211 | MMC5MemIn[(A-0x6000)>>13]=1; |
| 212 | } |
| 213 | else |
| 214 | MMC5MemIn[(A-0x6000)>>13]=0; |
| 215 | } |
| 216 | |
| 217 | static void MMC5PRG(void) |
| 218 | { |
| 219 | int x; |
| 220 | switch(mmc5psize&3) |
| 221 | { |
| 222 | case 0: MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]= |
| 223 | MMC5ROMWrProtect[2]=MMC5ROMWrProtect[3]=1; |
| 224 | setprg32(0x8000,((PRGBanks[1]&0x7F)>>2)); |
| 225 | for(x=0;x<4;x++) |
| 226 | MMC5MemIn[1+x]=1; |
| 227 | break; |
| 228 | case 1: if(PRGBanks[1]&0x80) |
| 229 | { |
| 230 | MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=1; |
| 231 | setprg16(0x8000,(PRGBanks[1]>>1)); |
| 232 | MMC5MemIn[1]=MMC5MemIn[2]=1; |
| 233 | } |
| 234 | else |
| 235 | { |
| 236 | MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=0; |
| 237 | MMC5WRAM(0x8000,PRGBanks[1]&7&0xFE); |
| 238 | MMC5WRAM(0xA000,(PRGBanks[1]&7&0xFE)+1); |
| 239 | } |
| 240 | MMC5MemIn[3]=MMC5MemIn[4]=1; |
| 241 | MMC5ROMWrProtect[2]=MMC5ROMWrProtect[3]=1; |
| 242 | setprg16(0xC000,(PRGBanks[3]&0x7F)>>1); |
| 243 | break; |
| 244 | case 2: if(PRGBanks[1]&0x80) |
| 245 | { |
| 246 | MMC5MemIn[1]=MMC5MemIn[2]=1; |
| 247 | MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=1; |
| 248 | setprg16(0x8000,(PRGBanks[1]&0x7F)>>1); |
| 249 | } |
| 250 | else |
| 251 | { |
| 252 | MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=0; |
| 253 | MMC5WRAM(0x8000,PRGBanks[1]&7&0xFE); |
| 254 | MMC5WRAM(0xA000,(PRGBanks[1]&7&0xFE)+1); |
| 255 | } |
| 256 | if(PRGBanks[2]&0x80) |
| 257 | { |
| 258 | MMC5ROMWrProtect[2]=1; |
| 259 | MMC5MemIn[3]=1; |
| 260 | setprg8(0xC000,PRGBanks[2]&0x7F); |
| 261 | } |
| 262 | else |
| 263 | { |
| 264 | MMC5ROMWrProtect[2]=0; |
| 265 | MMC5WRAM(0xC000,PRGBanks[2]&7); |
| 266 | } |
| 267 | MMC5MemIn[4]=1; |
| 268 | MMC5ROMWrProtect[3]=1; |
| 269 | setprg8(0xE000,PRGBanks[3]&0x7F); |
| 270 | break; |
| 271 | case 3: for(x=0;x<3;x++) |
| 272 | if(PRGBanks[x]&0x80) |
| 273 | { |
| 274 | MMC5ROMWrProtect[x]=1; |
| 275 | setprg8(0x8000+(x<<13),PRGBanks[x]&0x7F); |
| 276 | MMC5MemIn[1+x]=1; |
| 277 | } |
| 278 | else |
| 279 | { |
| 280 | MMC5ROMWrProtect[x]=0; |
| 281 | MMC5WRAM(0x8000+(x<<13),PRGBanks[x]&7); |
| 282 | } |
| 283 | MMC5MemIn[4]=1; |
| 284 | MMC5ROMWrProtect[3]=1; |
| 285 | setprg8(0xE000,PRGBanks[3]&0x7F); |
| 286 | break; |
| 287 | } |
| 288 | } |
| 289 | |
| 290 | static DECLFW(Mapper5_write) |
| 291 | { |
| 292 | if(A>=0x5120&&A<=0x5127) |
| 293 | { |
| 294 | ABMode = 0; |
| 295 | CHRBanksA[A&7]=V; |
| 296 | MMC5CHRA(); |
| 297 | } |
| 298 | else switch(A) |
| 299 | { |
| 300 | case 0x5105: { |
| 301 | int x; |
| 302 | for(x=0;x<4;x++) |
| 303 | { |
| 304 | switch((V>>(x<<1))&3) |
| 305 | { |
| 306 | case 0:PPUNTARAM|=1<<x;vnapage[x]=NTARAM;break; |
| 307 | case 1:PPUNTARAM|=1<<x;vnapage[x]=NTARAM+0x400;break; |
| 308 | case 2:PPUNTARAM|=1<<x;vnapage[x]=ExRAM;break; |
| 309 | case 3:PPUNTARAM&=~(1<<x);vnapage[x]=MMC5fill;break; |
| 310 | } |
| 311 | } |
| 312 | } |
| 313 | NTAMirroring=V; |
| 314 | break; |
| 315 | case 0x5113: WRAMPage=V;MMC5WRAM(0x6000,V&7);break; |
| 316 | case 0x5100: mmc5psize=V;MMC5PRG();break; |
| 317 | case 0x5101: mmc5vsize=V; |
| 318 | if(!ABMode) |
| 319 | { MMC5CHRB();MMC5CHRA();} |
| 320 | else |
| 321 | { MMC5CHRA();MMC5CHRB();} |
| 322 | break; |
| 323 | case 0x5114: |
| 324 | case 0x5115: |
| 325 | case 0x5116: |
| 326 | case 0x5117: PRGBanks[A&3]=V;MMC5PRG();break; |
| 327 | case 0x5128: |
| 328 | case 0x5129: |
| 329 | case 0x512a: |
| 330 | case 0x512b: ABMode=1; |
| 331 | CHRBanksB[A&3]=V; |
| 332 | MMC5CHRB(); |
| 333 | break; |
| 334 | case 0x5102: WRAMMaskEnable[0]=V;break; |
| 335 | case 0x5103: WRAMMaskEnable[1]=V;break; |
| 336 | case 0x5104: CHRMode=V;MMC5HackCHRMode=V&3;break; |
| 337 | case 0x5106: if(V!=NTFill) |
| 338 | { |
| 339 | uint32 t; |
| 340 | t=V|(V<<8)|(V<<16)|(V<<24); |
| 341 | FCEU_dwmemset(MMC5fill,t,0x3c0); |
| 342 | } |
| 343 | NTFill=V; |
| 344 | break; |
| 345 | case 0x5107: if(V!=ATFill) |
| 346 | { |
| 347 | unsigned char moop; |
| 348 | uint32 t; |
| 349 | moop=V|(V<<2)|(V<<4)|(V<<6); |
| 350 | t=moop|(moop<<8)|(moop<<16)|(moop<<24); |
| 351 | FCEU_dwmemset(MMC5fill+0x3c0,t,0x40); |
| 352 | } |
| 353 | ATFill=V; |
| 354 | break; |
| 355 | case 0x5200: MMC5HackSPMode=V;break; |
| 356 | case 0x5201: MMC5HackSPScroll=(V>>3)&0x1F;break; |
| 357 | case 0x5202: MMC5HackSPPage=V&0x3F;break; |
| 358 | case 0x5203: X6502_IRQEnd(FCEU_IQEXT);IRQScanline=V;break; |
| 359 | case 0x5204: X6502_IRQEnd(FCEU_IQEXT);IRQEnable=V&0x80;break; |
| 360 | case 0x5205: mul[0]=V;break; |
| 361 | case 0x5206: mul[1]=V;break; |
| 362 | } |
| 363 | } |
| 364 | |
| 365 | static DECLFR(MMC5_ReadROMRAM) |
| 366 | { |
| 367 | if(MMC5MemIn[(A-0x6000)>>13]) |
| 368 | return Page[A>>11][A]; |
| 369 | else |
| 370 | return X.DB; |
| 371 | } |
| 372 | |
| 373 | static DECLFW(MMC5_WriteROMRAM) |
| 374 | { |
| 375 | if(A>=0x8000) |
| 376 | if(MMC5ROMWrProtect[(A-0x8000)>>13]) return; |
| 377 | if(MMC5MemIn[(A-0x6000)>>13]) |
| 378 | if(((WRAMMaskEnable[0]&3)|((WRAMMaskEnable[1]&3)<<2)) == 6) Page[A>>11][A]=V; |
| 379 | } |
| 380 | |
| 381 | static DECLFW(MMC5_ExRAMWr) |
| 382 | { |
| 383 | if(MMC5HackCHRMode!=3) |
| 384 | ExRAM[A&0x3ff]=V; |
| 385 | } |
| 386 | |
| 387 | static DECLFR(MMC5_ExRAMRd) |
| 388 | { |
| 389 | /* Not sure if this is correct, so I'll comment it out for now. */ |
| 390 | //if(MMC5HackCHRMode>=2) |
| 391 | return ExRAM[A&0x3ff]; |
| 392 | //else |
| 393 | // return(X.DB); |
| 394 | } |
| 395 | |
| 396 | static DECLFR(MMC5_read) |
| 397 | { |
| 398 | switch(A) |
| 399 | { |
| 400 | case 0x5204: X6502_IRQEnd(FCEU_IQEXT); |
| 401 | { |
| 402 | uint8 x; |
| 403 | x=MMC5IRQR; |
| 404 | #ifdef FCEUDEF_DEBUGGER |
| 405 | if(!fceuindbg) |
| 406 | #endif |
| 407 | MMC5IRQR&=0x40; |
| 408 | return x; |
| 409 | } |
| 410 | case 0x5205: return (mul[0]*mul[1]); |
| 411 | case 0x5206: return ((mul[0]*mul[1])>>8); |
| 412 | } |
| 413 | return(X.DB); |
| 414 | } |
| 415 | |
| 416 | void MMC5Synco(void) |
| 417 | { |
| 418 | int x; |
| 419 | |
| 420 | MMC5PRG(); |
| 421 | for(x=0;x<4;x++) |
| 422 | { |
| 423 | switch((NTAMirroring>>(x<<1))&3) |
| 424 | { |
| 425 | case 0:PPUNTARAM|=1<<x;vnapage[x]=NTARAM;break; |
| 426 | case 1:PPUNTARAM|=1<<x;vnapage[x]=NTARAM+0x400;break; |
| 427 | case 2:PPUNTARAM|=1<<x;vnapage[x]=ExRAM;break; |
| 428 | case 3:PPUNTARAM&=~(1<<x);vnapage[x]=MMC5fill;break; |
| 429 | } |
| 430 | } |
| 431 | MMC5WRAM(0x6000,WRAMPage&7); |
| 432 | if(!ABMode) |
| 433 | { |
| 434 | MMC5CHRB(); |
| 435 | MMC5CHRA(); |
| 436 | } |
| 437 | else |
| 438 | { |
| 439 | MMC5CHRA(); |
| 440 | MMC5CHRB(); |
| 441 | } |
| 442 | { |
| 443 | uint32 t; |
| 444 | t=NTFill|(NTFill<<8)|(NTFill<<16)|(NTFill<<24); |
| 445 | FCEU_dwmemset(MMC5fill,t,0x3c0); |
| 446 | } |
| 447 | { |
| 448 | unsigned char moop; |
| 449 | uint32 t; |
| 450 | moop=ATFill|(ATFill<<2)|(ATFill<<4)|(ATFill<<6); |
| 451 | t=moop|(moop<<8)|(moop<<16)|(moop<<24); |
| 452 | FCEU_dwmemset(MMC5fill+0x3c0,t,0x40); |
| 453 | } |
| 454 | X6502_IRQEnd(FCEU_IQEXT); |
| 455 | MMC5HackCHRMode=CHRMode&3; |
| 456 | } |
| 457 | |
| 458 | void MMC5_hb(int scanline) |
| 459 | { |
| 460 | if(scanline==240) |
| 461 | { |
| 462 | MMC5LineCounter=0; |
| 463 | MMC5IRQR=0x40; |
| 464 | return; |
| 465 | } |
| 466 | if(MMC5LineCounter<240) |
| 467 | { |
| 468 | if(MMC5LineCounter==IRQScanline) |
| 469 | { |
| 470 | MMC5IRQR|=0x80; |
| 471 | if(IRQEnable&0x80) |
| 472 | X6502_IRQBegin(FCEU_IQEXT); |
| 473 | } |
| 474 | MMC5LineCounter++; |
| 475 | } |
| 476 | if(MMC5LineCounter==240) |
| 477 | MMC5IRQR=0; |
| 478 | } |
| 479 | |
| 480 | void MMC5_StateRestore(int version) |
| 481 | { |
| 482 | MMC5Synco(); |
| 483 | } |
| 484 | |
| 485 | typedef struct { |
| 486 | uint16 wl[2]; |
| 487 | uint8 env[2]; |
| 488 | uint8 enable; |
| 489 | uint8 running; |
| 490 | uint8 raw; |
| 491 | uint8 rawcontrol; |
| 492 | int32 dcount[2]; |
| 493 | int32 BC[3]; |
| 494 | int32 vcount[2]; |
| 495 | } MMC5APU; |
| 496 | |
| 497 | static MMC5APU MMC5Sound; |
| 498 | |
| 499 | |
| 500 | static void Do5PCM() |
| 501 | { |
| 502 | int32 V; |
| 503 | int32 start,end; |
| 504 | |
| 505 | start=MMC5Sound.BC[2]; |
| 506 | end=(SOUNDTS<<16)/soundtsinc; |
| 507 | if(end<=start) return; |
| 508 | MMC5Sound.BC[2]=end; |
| 509 | |
| 510 | if(!(MMC5Sound.rawcontrol&0x40) && MMC5Sound.raw) |
| 511 | for(V=start;V<end;V++) |
| 512 | Wave[V>>4]+=MMC5Sound.raw<<1; |
| 513 | } |
| 514 | |
| 515 | static void Do5PCMHQ() |
| 516 | { |
| 517 | int32 V; |
| 518 | if(!(MMC5Sound.rawcontrol&0x40) && MMC5Sound.raw) |
| 519 | for(V=MMC5Sound.BC[2];V<SOUNDTS;V++) |
| 520 | WaveHi[V]+=MMC5Sound.raw<<5; |
| 521 | MMC5Sound.BC[2]=SOUNDTS; |
| 522 | } |
| 523 | |
| 524 | |
| 525 | static DECLFW(Mapper5_SW) |
| 526 | { |
| 527 | A&=0x1F; |
| 528 | |
| 529 | GameExpSound.Fill=MMC5RunSound; |
| 530 | GameExpSound.HiFill=MMC5RunSoundHQ; |
| 531 | |
| 532 | switch(A) |
| 533 | { |
| 534 | case 0x10:if(psfun) psfun();MMC5Sound.rawcontrol=V;break; |
| 535 | case 0x11:if(psfun) psfun();MMC5Sound.raw=V;break; |
| 536 | |
| 537 | case 0x0: |
| 538 | case 0x4://printf("%04x:$%02x\n",A,V&0x30); |
| 539 | if(sfun) sfun(A>>2); |
| 540 | MMC5Sound.env[A>>2]=V; |
| 541 | break; |
| 542 | case 0x2: |
| 543 | case 0x6: if(sfun) sfun(A>>2); |
| 544 | MMC5Sound.wl[A>>2]&=~0x00FF; |
| 545 | MMC5Sound.wl[A>>2]|=V&0xFF; |
| 546 | break; |
| 547 | case 0x3: |
| 548 | case 0x7://printf("%04x:$%02x\n",A,V>>3); |
| 549 | MMC5Sound.wl[A>>2]&=~0x0700; |
| 550 | MMC5Sound.wl[A>>2]|=(V&0x07)<<8; |
| 551 | MMC5Sound.running|=1<<(A>>2); |
| 552 | break; |
| 553 | case 0x15:if(sfun) |
| 554 | { |
| 555 | sfun(0); |
| 556 | sfun(1); |
| 557 | } |
| 558 | MMC5Sound.running&=V; |
| 559 | MMC5Sound.enable=V; |
| 560 | //printf("%02x\n",V); |
| 561 | break; |
| 562 | } |
| 563 | } |
| 564 | |
| 565 | static void Do5SQ(int P) |
| 566 | { |
| 567 | static int tal[4]={1,2,4,6}; |
| 568 | int32 V,amp,rthresh,wl; |
| 569 | int32 start,end; |
| 570 | |
| 571 | start=MMC5Sound.BC[P]; |
| 572 | end=(SOUNDTS<<16)/soundtsinc; |
| 573 | if(end<=start) return; |
| 574 | MMC5Sound.BC[P]=end; |
| 575 | |
| 576 | wl=MMC5Sound.wl[P]+1; |
| 577 | amp=(MMC5Sound.env[P]&0xF)<<4; |
| 578 | rthresh=tal[(MMC5Sound.env[P]&0xC0)>>6]; |
| 579 | |
| 580 | if(wl>=8 && (MMC5Sound.running&(P+1))) |
| 581 | { |
| 582 | int dc,vc; |
| 583 | |
| 584 | wl<<=18; |
| 585 | dc=MMC5Sound.dcount[P]; |
| 586 | vc=MMC5Sound.vcount[P]; |
| 587 | |
| 588 | for(V=start;V<end;V++) |
| 589 | { |
| 590 | if(dc<rthresh) |
| 591 | Wave[V>>4]+=amp; |
| 592 | vc-=nesincsize; |
| 593 | while(vc<=0) |
| 594 | { |
| 595 | vc+=wl; |
| 596 | dc=(dc+1)&7; |
| 597 | } |
| 598 | } |
| 599 | MMC5Sound.dcount[P]=dc; |
| 600 | MMC5Sound.vcount[P]=vc; |
| 601 | } |
| 602 | } |
| 603 | |
| 604 | static void Do5SQHQ(int P) |
| 605 | { |
| 606 | static int tal[4]={1,2,4,6}; |
| 607 | int32 V,amp,rthresh,wl; |
| 608 | |
| 609 | wl=MMC5Sound.wl[P]+1; |
| 610 | amp=((MMC5Sound.env[P]&0xF)<<8); |
| 611 | rthresh=tal[(MMC5Sound.env[P]&0xC0)>>6]; |
| 612 | |
| 613 | if(wl>=8 && (MMC5Sound.running&(P+1))) |
| 614 | { |
| 615 | int dc,vc; |
| 616 | |
| 617 | wl<<=1; |
| 618 | |
| 619 | dc=MMC5Sound.dcount[P]; |
| 620 | vc=MMC5Sound.vcount[P]; |
| 621 | for(V=MMC5Sound.BC[P];V<SOUNDTS;V++) |
| 622 | { |
| 623 | if(dc<rthresh) |
| 624 | WaveHi[V]+=amp; |
| 625 | vc--; |
| 626 | if(vc<=0) /* Less than zero when first started. */ |
| 627 | { |
| 628 | vc=wl; |
| 629 | dc=(dc+1)&7; |
| 630 | } |
| 631 | } |
| 632 | MMC5Sound.dcount[P]=dc; |
| 633 | MMC5Sound.vcount[P]=vc; |
| 634 | } |
| 635 | MMC5Sound.BC[P]=SOUNDTS; |
| 636 | } |
| 637 | |
| 638 | void MMC5RunSoundHQ(void) |
| 639 | { |
| 640 | Do5SQHQ(0); |
| 641 | Do5SQHQ(1); |
| 642 | Do5PCMHQ(); |
| 643 | } |
| 644 | |
| 645 | void MMC5HiSync(int32 ts) |
| 646 | { |
| 647 | int x; |
| 648 | for(x=0;x<3;x++) MMC5Sound.BC[x]=ts; |
| 649 | } |
| 650 | |
| 651 | void MMC5RunSound(int Count) |
| 652 | { |
| 653 | int x; |
| 654 | Do5SQ(0); |
| 655 | Do5SQ(1); |
| 656 | Do5PCM(); |
| 657 | for(x=0;x<3;x++) |
| 658 | MMC5Sound.BC[x]=Count; |
| 659 | } |
| 660 | |
| 661 | void Mapper5_ESI(void) |
| 662 | { |
| 663 | GameExpSound.RChange=Mapper5_ESI; |
| 664 | if(FSettings.SndRate) |
| 665 | { |
| 666 | if(FSettings.soundq>=1) |
| 667 | { |
| 668 | sfun=Do5SQHQ; |
| 669 | psfun=Do5PCMHQ; |
| 670 | } |
| 671 | else |
| 672 | { |
| 673 | sfun=Do5SQ; |
| 674 | psfun=Do5PCM; |
| 675 | } |
| 676 | } |
| 677 | else |
| 678 | { |
| 679 | sfun=0; |
| 680 | psfun=0; |
| 681 | } |
| 682 | memset(MMC5Sound.BC,0,sizeof(MMC5Sound.BC)); |
| 683 | memset(MMC5Sound.vcount,0,sizeof(MMC5Sound.vcount)); |
| 684 | GameExpSound.HiSync=MMC5HiSync; |
| 685 | } |
| 686 | |
| 687 | void NSFMMC5_Init(void) |
| 688 | { |
| 689 | memset(&MMC5Sound,0,sizeof(MMC5Sound)); |
| 690 | mul[0]=mul[1]=0; |
| 691 | ExRAM=(uint8*)FCEU_gmalloc(1024); |
| 692 | Mapper5_ESI(); |
| 693 | SetWriteHandler(0x5c00,0x5fef,MMC5_ExRAMWr); |
| 694 | SetReadHandler(0x5c00,0x5fef,MMC5_ExRAMRd); |
| 695 | MMC5HackCHRMode=2; |
| 696 | SetWriteHandler(0x5000,0x5015,Mapper5_SW); |
| 697 | SetWriteHandler(0x5205,0x5206,Mapper5_write); |
| 698 | SetReadHandler(0x5205,0x5206,MMC5_read); |
| 699 | } |
| 700 | |
| 701 | void NSFMMC5_Close(void) |
| 702 | { |
| 703 | FCEU_gfree(ExRAM); |
| 704 | ExRAM=0; |
| 705 | } |
| 706 | |
| 707 | static void GenMMC5Reset(void) |
| 708 | { |
| 709 | int x; |
| 710 | |
| 711 | for(x=0;x<4;x++) PRGBanks[x]=~0; |
| 712 | for(x=0;x<8;x++) CHRBanksA[x]=~0; |
| 713 | for(x=0;x<4;x++) CHRBanksB[x]=~0; |
| 714 | WRAMMaskEnable[0]=WRAMMaskEnable[1]=~0; |
| 715 | |
| 716 | mmc5psize=mmc5vsize=3; |
| 717 | CHRMode=0; |
| 718 | |
| 719 | NTAMirroring=NTFill=ATFill=0xFF; |
| 720 | |
| 721 | MMC5Synco(); |
| 722 | |
| 723 | SetWriteHandler(0x4020,0x5bff,Mapper5_write); |
| 724 | SetReadHandler(0x4020,0x5bff,MMC5_read); |
| 725 | |
| 726 | SetWriteHandler(0x5c00,0x5fff,MMC5_ExRAMWr); |
| 727 | SetReadHandler(0x5c00,0x5fff,MMC5_ExRAMRd); |
| 728 | |
| 729 | SetWriteHandler(0x6000,0xFFFF,MMC5_WriteROMRAM); |
| 730 | SetReadHandler(0x6000,0xFFFF,MMC5_ReadROMRAM); |
| 731 | |
| 732 | SetWriteHandler(0x5000,0x5015,Mapper5_SW); |
| 733 | SetWriteHandler(0x5205,0x5206,Mapper5_write); |
| 734 | SetReadHandler(0x5205,0x5206,MMC5_read); |
| 735 | |
| 736 | //GameHBIRQHook=MMC5_hb; |
| 737 | FCEU_CheatAddRAM(8,0x6000,WRAM); |
| 738 | FCEU_CheatAddRAM(1,0x5c00,ExRAM); |
| 739 | } |
| 740 | |
| 741 | static SFORMAT MMC5_StateRegs[]={ |
| 742 | { PRGBanks, 4, "PRGB"}, |
| 743 | { CHRBanksA, 8, "CHRA"}, |
| 744 | { CHRBanksB, 4, "CHRB"}, |
| 745 | { &WRAMPage, 1, "WRMP"}, |
| 746 | { WRAMMaskEnable, 2, "WRME"}, |
| 747 | { &ABMode, 1, "ABMD"}, |
| 748 | { &IRQScanline, 1, "IRQS"}, |
| 749 | { &IRQEnable, 1, "IRQE"}, |
| 750 | { &CHRMode, 1, "CHRM"}, |
| 751 | { &NTAMirroring, 1, "NTAM"}, |
| 752 | { &NTFill, 1, "NTFL"}, |
| 753 | { &ATFill, 1, "ATFL"}, |
| 754 | |
| 755 | { &MMC5Sound.wl[0], 2|FCEUSTATE_RLSB, "SDW0"}, |
| 756 | { &MMC5Sound.wl[1], 2|FCEUSTATE_RLSB, "SDW1"}, |
| 757 | { MMC5Sound.env, 2, "SDEV"}, |
| 758 | { &MMC5Sound.enable, 1, "SDEN"}, |
| 759 | { &MMC5Sound.running, 1, "SDRU"}, |
| 760 | { &MMC5Sound.raw, 1, "SDRW"}, |
| 761 | { &MMC5Sound.rawcontrol, 1, "SDRC"}, |
| 762 | {0} |
| 763 | }; |
| 764 | |
| 765 | static void GenMMC5_Init(CartInfo *info, int wsize, int battery) |
| 766 | { |
| 767 | if(wsize) |
| 768 | { |
| 769 | WRAM=(uint8*)FCEU_gmalloc(wsize*1024); |
| 770 | SetupCartPRGMapping(0x10,WRAM,wsize*1024,1); |
| 771 | AddExState(WRAM, wsize*1024, 0, "WRAM"); |
| 772 | } |
| 773 | |
| 774 | MMC5fill=(uint8*)FCEU_gmalloc(1024); |
| 775 | ExRAM=(uint8*)FCEU_gmalloc(1024); |
| 776 | |
| 777 | AddExState(MMC5_StateRegs, ~0, 0, 0); |
| 778 | AddExState(WRAM, wsize*1024, 0, "WRAM"); |
| 779 | AddExState(ExRAM, 1024, 0, "ERAM"); |
| 780 | AddExState(&MMC5HackSPMode, 1, 0, "SPLM"); |
| 781 | AddExState(&MMC5HackSPScroll, 1, 0, "SPLS"); |
| 782 | AddExState(&MMC5HackSPPage, 1, 0, "SPLP"); |
| 783 | |
| 784 | MMC5WRAMsize=wsize/8; |
| 785 | BuildWRAMSizeTable(); |
| 786 | GameStateRestore=MMC5_StateRestore; |
| 787 | info->Power=GenMMC5Reset; |
| 788 | |
| 789 | if(battery) |
| 790 | { |
| 791 | info->SaveGame[0]=WRAM; |
| 792 | if(wsize<=16) |
| 793 | info->SaveGameLen[0]=8192; |
| 794 | else |
| 795 | info->SaveGameLen[0]=32768; |
| 796 | } |
| 797 | |
| 798 | MMC5HackVROMMask=CHRmask4[0]; |
| 799 | MMC5HackExNTARAMPtr=ExRAM; |
| 800 | MMC5Hack=1; |
| 801 | MMC5HackVROMPTR=CHRptr[0]; |
| 802 | MMC5HackCHRMode=0; |
| 803 | MMC5HackSPMode=MMC5HackSPScroll=MMC5HackSPPage=0; |
| 804 | Mapper5_ESI(); |
| 805 | } |
| 806 | |
| 807 | void Mapper5_Init(CartInfo *info) |
| 808 | { |
| 809 | GenMMC5_Init(info, DetectMMC5WRAMSize(info->CRC32), info->battery); |
| 810 | } |
| 811 | |
| 812 | // ELROM seems to have 0KB of WRAM |
| 813 | // EKROM seems to have 8KB of WRAM |
| 814 | // ETROM seems to have 16KB of WRAM |
| 815 | // EWROM seems to have 32KB of WRAM |
| 816 | |
| 817 | // ETROM and EWROM are battery-backed, EKROM isn't. |
| 818 | |
| 819 | void ETROM_Init(CartInfo *info) |
| 820 | { |
| 821 | GenMMC5_Init(info, 16,info->battery); |
| 822 | } |
| 823 | |
| 824 | void ELROM_Init(CartInfo *info) |
| 825 | { |
| 826 | GenMMC5_Init(info,0,0); |
| 827 | } |
| 828 | |
| 829 | void EWROM_Init(CartInfo *info) |
| 830 | { |
| 831 | GenMMC5_Init(info,32,info->battery); |
| 832 | } |
| 833 | |
| 834 | void EKROM_Init(CartInfo *info) |
| 835 | { |
| 836 | GenMMC5_Init(info,8,info->battery); |
| 837 | } |