| 1 | /* FCE Ultra - NES/Famicom Emulator |
| 2 | * |
| 3 | * Copyright notice for this file: |
| 4 | * Copyright (C) 2002 Ben Parnell |
| 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 | /* TODO: Battery backup file saving, mirror force */ |
| 22 | /* **INCOMPLETE** */ |
| 23 | /* Override stuff: CHR RAM instead of CHR ROM, |
| 24 | mirroring. |
| 25 | */ |
| 26 | |
| 27 | #include <stdio.h> |
| 28 | #include <stdlib.h> |
| 29 | #include <string.h> |
| 30 | #ifdef GP2X |
| 31 | #include <unistd.h> |
| 32 | #endif |
| 33 | |
| 34 | |
| 35 | #include "types.h" |
| 36 | #include "fce.h" |
| 37 | #include "unif.h" |
| 38 | #include "version.h" |
| 39 | #include "svga.h" |
| 40 | #include "general.h" |
| 41 | #include "state.h" |
| 42 | #include "endian.h" |
| 43 | #include "file.h" |
| 44 | #include "cart.h" |
| 45 | #include "memory.h" |
| 46 | #include "input.h" |
| 47 | |
| 48 | typedef struct { |
| 49 | char ID[4]; |
| 50 | uint32 info; |
| 51 | } UNIF_HEADER; |
| 52 | |
| 53 | typedef struct { |
| 54 | char *name; |
| 55 | void (*init)(void); |
| 56 | int flags; |
| 57 | } BMAPPING; |
| 58 | |
| 59 | typedef struct { |
| 60 | char *name; |
| 61 | int (*init)(int fp); |
| 62 | } BFMAPPING; |
| 63 | |
| 64 | void (*BoardClose)(void); |
| 65 | void (*BoardPower)(void); |
| 66 | void (*BoardReset)(void); |
| 67 | |
| 68 | static int vramo; |
| 69 | static int mirrortodo; |
| 70 | int UNIFbattery; |
| 71 | static char *boardname; |
| 72 | static char *sboardname; |
| 73 | char *UNIFchrrama; |
| 74 | |
| 75 | static UNIF_HEADER unhead; |
| 76 | static UNIF_HEADER uchead; |
| 77 | |
| 78 | |
| 79 | static uint8 *malloced[32]; |
| 80 | |
| 81 | static int FixRomSize(uint32 size, uint32 minimum) |
| 82 | { |
| 83 | int x=1; |
| 84 | |
| 85 | if(size<minimum) |
| 86 | return minimum; |
| 87 | while(x<size) |
| 88 | x<<=1; |
| 89 | return x; |
| 90 | } |
| 91 | |
| 92 | static void FreeUNIF(void) |
| 93 | { |
| 94 | int x; |
| 95 | if(UNIFchrrama) |
| 96 | {free(UNIFchrrama);UNIFchrrama=0;} |
| 97 | if(boardname) |
| 98 | {free(boardname);boardname=0;} |
| 99 | for(x=0;x<32;x++) |
| 100 | { |
| 101 | if(malloced[x]) |
| 102 | {free(malloced[x]);malloced[x]=0;} |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | static void ResetUNIF(void) |
| 107 | { |
| 108 | int x; |
| 109 | for(x=0;x<32;x++) |
| 110 | malloced[x]=0; |
| 111 | vramo=0; |
| 112 | UNIFbattery=0; |
| 113 | boardname=0; |
| 114 | mirrortodo=0; |
| 115 | BoardReset=BoardPower=BoardClose=0; |
| 116 | UNIFchrrama=0; |
| 117 | } |
| 118 | |
| 119 | static uint8 exntar[2048]; |
| 120 | |
| 121 | static void MooMirroring(void) |
| 122 | { |
| 123 | if(mirrortodo<0x4) |
| 124 | SetupCartMirroring(mirrortodo,1,0); |
| 125 | else if(mirrortodo==0x4) |
| 126 | { |
| 127 | SetupCartMirroring(4,1,exntar); |
| 128 | AddExState(exntar, 2048, 0,"EXNR"); |
| 129 | } |
| 130 | else |
| 131 | SetupCartMirroring(0,0,0); |
| 132 | } |
| 133 | |
| 134 | static int DoMirroring(int fp) |
| 135 | { |
| 136 | uint8 t; |
| 137 | t=FCEU_fgetc(fp); |
| 138 | mirrortodo=t; |
| 139 | |
| 140 | { |
| 141 | static char *stuffo[6]={"Horizontal","Vertical","$2000","$2400","\"Four-screen\"","Controlled by Mapper Hardware"}; |
| 142 | if(t<6) |
| 143 | printf(" Name/Attribute Table Mirroring: %s\n",stuffo[t]); |
| 144 | } |
| 145 | return(1); |
| 146 | } |
| 147 | |
| 148 | static int CTRL(int fp) |
| 149 | { |
| 150 | int t; |
| 151 | |
| 152 | if((t=FCEU_fgetc(fp))==EOF) |
| 153 | return(0); |
| 154 | /* The information stored in this byte isn't very helpful, but it's |
| 155 | better than nothing...maybe. |
| 156 | */ |
| 157 | |
| 158 | if(t&1) FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=SI_GAMEPAD; |
| 159 | else FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=SI_NONE; |
| 160 | |
| 161 | if(t&2) FCEUGameInfo.input[1]=SI_ZAPPER; |
| 162 | else if(t&0x10) FCEUGameInfo.input[1]=SI_POWERPAD; |
| 163 | |
| 164 | return(1); |
| 165 | } |
| 166 | |
| 167 | static int TVCI(int fp) |
| 168 | { |
| 169 | int t; |
| 170 | if( (t=FCEU_fgetc(fp)) ==EOF) |
| 171 | return(0); |
| 172 | if(t<=2) |
| 173 | { |
| 174 | char *stuffo[3]={"NTSC","PAL","NTSC and PAL"}; |
| 175 | if(t==0) |
| 176 | FCEUGameInfo.vidsys=GIV_NTSC; |
| 177 | else if(t==1) |
| 178 | FCEUGameInfo.vidsys=GIV_PAL; |
| 179 | printf(" TV Standard Compatibility: %s\n",stuffo[t]); |
| 180 | } |
| 181 | return(1); |
| 182 | } |
| 183 | |
| 184 | static int EnableBattery(int fp) |
| 185 | { |
| 186 | puts(" Battery-backed."); |
| 187 | if(FCEU_fgetc(fp)==EOF) |
| 188 | return(0); |
| 189 | UNIFbattery=1; |
| 190 | return(1); |
| 191 | } |
| 192 | |
| 193 | static int LoadPRG(int fp) |
| 194 | { |
| 195 | int z,t; |
| 196 | z=uchead.ID[3]-'0'; |
| 197 | |
| 198 | if(z<0 || z>15) |
| 199 | return(0); |
| 200 | printf(" PRG ROM %d size: %d",z,(int) uchead.info); |
| 201 | if(malloced[z]) |
| 202 | free(malloced[z]); |
| 203 | t=FixRomSize(uchead.info,2048); |
| 204 | if(!(malloced[z]=FCEU_malloc(t))) |
| 205 | return(0); |
| 206 | memset(malloced[z]+uchead.info,0xFF,t-uchead.info); |
| 207 | if(FCEU_fread(malloced[z],1,uchead.info,fp)!=uchead.info) |
| 208 | { |
| 209 | puts("Read Error!"); |
| 210 | return(0); |
| 211 | } |
| 212 | else |
| 213 | puts(""); |
| 214 | |
| 215 | SetupCartPRGMapping(z,malloced[z],t,0); |
| 216 | return(1); |
| 217 | } |
| 218 | |
| 219 | static int SetBoardName(int fp) |
| 220 | { |
| 221 | if(!(boardname=FCEU_malloc(uchead.info+1))) |
| 222 | return(0); |
| 223 | FCEU_fread(boardname,1,uchead.info,fp); |
| 224 | boardname[uchead.info]=0; |
| 225 | printf(" Board name: %s\n",boardname); |
| 226 | sboardname=boardname; |
| 227 | if(!memcmp(boardname,"NES-",4) || !memcmp(boardname,"UNL-",4) || !memcmp(boardname,"HVC-",4) || !memcmp(boardname,"BTL-",4) || !memcmp(boardname,"BMC-",4)) |
| 228 | sboardname+=4; |
| 229 | return(1); |
| 230 | } |
| 231 | |
| 232 | static int LoadCHR(int fp) |
| 233 | { |
| 234 | int z,t; |
| 235 | z=uchead.ID[3]-'0'; |
| 236 | if(z<0 || z>15) |
| 237 | return(0); |
| 238 | printf(" CHR ROM %d size: %d",z,(int) uchead.info); |
| 239 | if(malloced[16+z]) |
| 240 | free(malloced[16+z]); |
| 241 | t=FixRomSize(uchead.info,8192); |
| 242 | if(!(malloced[16+z]=FCEU_malloc(t))) |
| 243 | return(0); |
| 244 | memset(malloced[16+z]+uchead.info,0xFF,t-uchead.info); |
| 245 | if(FCEU_fread(malloced[16+z],1,uchead.info,fp)!=uchead.info) |
| 246 | { |
| 247 | puts("Read Error!"); |
| 248 | return(0); |
| 249 | } |
| 250 | else |
| 251 | puts(""); |
| 252 | |
| 253 | SetupCartCHRMapping(z,malloced[16+z],t,0); |
| 254 | return(1); |
| 255 | } |
| 256 | |
| 257 | |
| 258 | #define BMCFLAG_FORCE4 1 |
| 259 | #define BMCFLAG_CHRROK 2 // Ok for generic UNIF code to make available |
| 260 | // 8KB of CHR RAM if no CHR ROM is present. |
| 261 | #define BMC 48 |
| 262 | |
| 263 | BMAPPING bmap[BMC] = { |
| 264 | |
| 265 | /* Sachen Carts */ |
| 266 | { "TC-U01-1.5M", TCU01_Init,0}, |
| 267 | { "Sachen-8259B", S8259B_Init,BMCFLAG_CHRROK}, |
| 268 | { "Sachen-8259A", S8259A_Init,BMCFLAG_CHRROK}, |
| 269 | { "Sachen-74LS374N", S74LS374N_Init,0}, |
| 270 | { "SA-016-1M", SA0161M_Init,0}, |
| 271 | { "SA-72007", SA72007_Init,0}, |
| 272 | { "SA-72008", SA72008_Init,0}, |
| 273 | { "SA-0036", SA0036_Init,0}, |
| 274 | { "SA-0037", SA0037_Init,0}, |
| 275 | |
| 276 | { "H2288", H2288_Init,0}, |
| 277 | // /* AVE carts. */ |
| 278 | // { "MB-91", MB91_Init,0}, // DeathBots |
| 279 | // { "NINA-06", NINA06_Init,0}, // F-15 City War |
| 280 | // { "NINA-03", NINA03_Init,0}, // Tiles of Fate |
| 281 | // { "NINA-001", NINA001_Init,0}, // Impossible Mission 2 |
| 282 | |
| 283 | { "HKROM", HKROM_Init,0}, |
| 284 | |
| 285 | { "EWROM", EWROM_Init,0}, |
| 286 | { "EKROM", EKROM_Init,0}, |
| 287 | { "ELROM", ELROM_Init,0}, |
| 288 | { "ETROM", ETROM_Init,0}, |
| 289 | |
| 290 | { "SAROM", SAROM_Init,0}, |
| 291 | { "SBROM", SBROM_Init,0}, |
| 292 | { "SCROM", SCROM_Init,0}, |
| 293 | { "SEROM", SEROM_Init,0}, |
| 294 | { "SGROM", SGROM_Init,0}, |
| 295 | { "SKROM", SKROM_Init,0}, |
| 296 | { "SLROM", SLROM_Init,0}, |
| 297 | { "SL1ROM", SL1ROM_Init,0}, |
| 298 | { "SNROM", SNROM_Init,0}, |
| 299 | { "SOROM", SOROM_Init,0}, |
| 300 | |
| 301 | { "TGROM", TGROM_Init,0}, |
| 302 | { "TR1ROM", TFROM_Init,BMCFLAG_FORCE4}, |
| 303 | { "TFROM", TFROM_Init,0}, |
| 304 | { "TLROM", TLROM_Init,0}, |
| 305 | { "TKROM", TKROM_Init,0}, |
| 306 | { "TSROM", TSROM_Init,0}, |
| 307 | |
| 308 | { "TLSROM", TLSROM_Init,0}, |
| 309 | { "TKSROM", TKSROM_Init,0}, |
| 310 | { "TQROM", TQROM_Init,0}, |
| 311 | { "TVROM", TLROM_Init,BMCFLAG_FORCE4}, |
| 312 | |
| 313 | { "CPROM", CPROM_Init,0}, |
| 314 | { "CNROM", CNROM_Init,0}, |
| 315 | { "NROM", NROM256_Init,0 }, |
| 316 | { "RROM", NROM128_Init,0 }, |
| 317 | { "RROM-128", NROM128_Init,0 }, |
| 318 | { "NROM-128", NROM128_Init,0 }, |
| 319 | { "NROM-256", NROM256_Init,0 }, |
| 320 | { "MHROM", MHROM_Init,0}, |
| 321 | { "UNROM", UNROM_Init,0}, |
| 322 | { "MARIO1-MALEE2", MALEE_Init,0}, |
| 323 | { "Supervision16in1", Supervision16_Init,0}, |
| 324 | { "NovelDiamond9999999in1", Novel_Init,0}, |
| 325 | { "Super24in1SC03", Super24_Init,0} |
| 326 | }; |
| 327 | |
| 328 | #define BMF 7 |
| 329 | BFMAPPING bfunc[BMF] = { |
| 330 | { "CTRL", CTRL }, |
| 331 | { "TVCI", TVCI }, |
| 332 | { "BATR", EnableBattery }, |
| 333 | { "MIRR", DoMirroring }, |
| 334 | { "PRG", LoadPRG }, |
| 335 | { "CHR", LoadCHR }, |
| 336 | { "MAPR", SetBoardName } |
| 337 | }; |
| 338 | |
| 339 | int LoadUNIFChunks(int fp) |
| 340 | { |
| 341 | int x; |
| 342 | int t; |
| 343 | for(;;) |
| 344 | { |
| 345 | t=FCEU_fread(&uchead,1,4,fp); |
| 346 | if(t<4) |
| 347 | { |
| 348 | if(t>0) |
| 349 | return 0; |
| 350 | return 1; |
| 351 | } |
| 352 | if(!(FCEU_read32(&uchead.info,fp))) |
| 353 | return 0; |
| 354 | t=0; |
| 355 | for(x=0;x<BMF;x++) |
| 356 | { |
| 357 | if(memcmp(&uchead,bfunc[x].name,strlen(bfunc[x].name))) |
| 358 | continue; |
| 359 | if(!bfunc[x].init(fp)) |
| 360 | return 0; |
| 361 | t=1; |
| 362 | break; |
| 363 | } |
| 364 | if(!t) |
| 365 | if(FCEU_fseek(fp,uchead.info,SEEK_CUR)) |
| 366 | return(0); |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | static int InitializeBoard(void) |
| 371 | { |
| 372 | int x; |
| 373 | |
| 374 | for(x=0;x<BMC;x++) |
| 375 | { |
| 376 | if(strcmp(sboardname,bmap[x].name)) continue; |
| 377 | if(!malloced[16] && (bmap[x].flags&BMCFLAG_CHRROK)) |
| 378 | { |
| 379 | UNIFchrrama=FCEU_malloc(8192); |
| 380 | if((malloced[16]=(uint8 *)UNIFchrrama)) |
| 381 | { |
| 382 | SetupCartCHRMapping(0,(uint8 *)UNIFchrrama,8192,1); |
| 383 | AddExState(UNIFchrrama, 8192, 0,"CHRR"); |
| 384 | } |
| 385 | else |
| 386 | return(-1); |
| 387 | } |
| 388 | if(bmap[x].flags&BMCFLAG_FORCE4) |
| 389 | mirrortodo=4; |
| 390 | MooMirroring(); |
| 391 | bmap[x].init(); |
| 392 | return(1); |
| 393 | } |
| 394 | FCEU_PrintError("Board type not supported."); |
| 395 | return(0); |
| 396 | } |
| 397 | |
| 398 | static void UNIFGI(int h) |
| 399 | { |
| 400 | switch(h) |
| 401 | { |
| 402 | case GI_RESETM2: |
| 403 | if(BoardReset) BoardReset(); |
| 404 | break; |
| 405 | case GI_POWER: |
| 406 | if(BoardPower) BoardPower(); |
| 407 | if(UNIFchrrama) memset(UNIFchrrama,0,8192); |
| 408 | break; |
| 409 | case GI_CLOSE: |
| 410 | if(BoardClose) |
| 411 | BoardClose(); |
| 412 | FreeUNIF(); |
| 413 | break; |
| 414 | } |
| 415 | } |
| 416 | |
| 417 | int UNIFLoad(char *name, int fp) |
| 418 | { |
| 419 | FCEU_fseek(fp,0,SEEK_SET); |
| 420 | FCEU_fread(&unhead,1,4,fp); |
| 421 | if(memcmp(&unhead,"UNIF",4)) |
| 422 | return 0; |
| 423 | |
| 424 | ResetCartMapping(); |
| 425 | |
| 426 | ResetExState(); |
| 427 | ResetUNIF(); |
| 428 | if(!FCEU_read32(&unhead.info,fp)) |
| 429 | goto aborto; |
| 430 | if(FCEU_fseek(fp,0x20,SEEK_SET)<0) |
| 431 | goto aborto; |
| 432 | if(!LoadUNIFChunks(fp)) |
| 433 | goto aborto; |
| 434 | if(!InitializeBoard()) |
| 435 | goto aborto; |
| 436 | |
| 437 | GameInterface=UNIFGI; |
| 438 | return 1; |
| 439 | |
| 440 | aborto: |
| 441 | |
| 442 | FreeUNIF(); |
| 443 | ResetUNIF(); |
| 444 | return 0; |
| 445 | } |
| 446 | |
| 447 | static FILE *fssp=0; |
| 448 | |
| 449 | void UNIFOpenWRAM(int t, char *ext, int override) |
| 450 | { |
| 451 | if(UNIFbattery|override) |
| 452 | { |
| 453 | fssp=fopen(FCEU_MakeFName(FCEUMKF_SAV,0,(ext?ext:"sav")),(t==UOW_RD)?"rb":"wb"); |
| 454 | } |
| 455 | } |
| 456 | |
| 457 | void UNIFWriteWRAM(uint8 *p, int size) |
| 458 | { |
| 459 | if(fssp) |
| 460 | fwrite(p, size, 1, fssp); |
| 461 | } |
| 462 | |
| 463 | void UNIFReadWRAM(uint8 *p, int size) |
| 464 | { |
| 465 | if(fssp) |
| 466 | fread(p, size, 1, fssp); |
| 467 | } |
| 468 | void UNIFCloseWRAM(void) |
| 469 | { |
| 470 | if(fssp) |
| 471 | fclose(fssp); |
| 472 | fssp=0; |
| 473 | #ifdef GP2X |
| 474 | sync(); |
| 475 | #endif |
| 476 | } |