| 1 | /* FCE Ultra - NES/Famicom Emulator |
| 2 | * |
| 3 | * Copyright notice for this file: |
| 4 | * Copyright (C) 1998 BERO |
| 5 | * Copyright (C) 2002 Ben Parnell |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 20 | */ |
| 21 | |
| 22 | #include <string.h> |
| 23 | #include <stdio.h> |
| 24 | #include <stdlib.h> |
| 25 | |
| 26 | #include "types.h" |
| 27 | #include "x6502.h" |
| 28 | #include "fce.h" |
| 29 | #include "sound.h" |
| 30 | #include "svga.h" |
| 31 | #include "netplay.h" |
| 32 | #include "general.h" |
| 33 | #include "endian.h" |
| 34 | #include "version.h" |
| 35 | #include "memory.h" |
| 36 | |
| 37 | #include "cart.h" |
| 38 | #include "nsf.h" |
| 39 | #include "fds.h" |
| 40 | #include "ines.h" |
| 41 | #include "unif.h" |
| 42 | #include "cheat.h" |
| 43 | |
| 44 | #include "state.h" |
| 45 | #include "video.h" |
| 46 | #include "input.h" |
| 47 | #include "file.h" |
| 48 | #include "crc32.h" |
| 49 | #include "ppu.h" |
| 50 | |
| 51 | #include "palette.h" |
| 52 | #include "movie.h" |
| 53 | |
| 54 | #include "dprintf.h" |
| 55 | |
| 56 | #ifdef GP2X |
| 57 | #include "drivers/gp2x/asmutils.h" |
| 58 | #endif |
| 59 | |
| 60 | #define Pal (PALRAM) |
| 61 | |
| 62 | |
| 63 | static void (*RefreshLine)(uint8 *P, uint32 vofs) = NULL; |
| 64 | static void PRefreshLine(void); |
| 65 | |
| 66 | static void ResetPPU(void); |
| 67 | static void PowerPPU(void); |
| 68 | |
| 69 | uint64 timestampbase=0; |
| 70 | |
| 71 | static int ppudead=1; |
| 72 | static int kook=0; |
| 73 | |
| 74 | int MMC5Hack; |
| 75 | uint32 MMC5HackVROMMask; |
| 76 | uint8 *MMC5HackExNTARAMPtr; |
| 77 | uint8 *MMC5HackVROMPTR; |
| 78 | uint8 MMC5HackCHRMode=0; |
| 79 | uint8 MMC5HackSPMode; |
| 80 | uint8 MMC5HackSPScroll; |
| 81 | uint8 MMC5HackSPPage; |
| 82 | |
| 83 | uint8 *MMC5SPRVPage[8]; |
| 84 | uint8 *MMC5BGVPage[8]; |
| 85 | |
| 86 | |
| 87 | uint8 VRAMBuffer,PPUGenLatch; |
| 88 | |
| 89 | uint8 *vnapage[4]; |
| 90 | uint8 PPUNTARAM; |
| 91 | uint8 PPUCHRRAM; |
| 92 | |
| 93 | /* Color deemphasis emulation. Joy... */ |
| 94 | static uint8 deemp=0; |
| 95 | static int deempcnt[8]; |
| 96 | |
| 97 | int tosprite=256; |
| 98 | |
| 99 | FCEUGI FCEUGameInfo; |
| 100 | void (*GameInterface)(int h); |
| 101 | |
| 102 | void FP_FASTAPASS(1) (*PPU_hook)(uint32 A); |
| 103 | |
| 104 | void (*GameStateRestore)(int version); |
| 105 | void (*GameHBIRQHook)(void), (*GameHBIRQHook2)(void); |
| 106 | |
| 107 | readfunc ARead[0x10000]; |
| 108 | writefunc BWrite[0x10000]; |
| 109 | static readfunc *AReadG; |
| 110 | static writefunc *BWriteG; |
| 111 | static int RWWrap=0; |
| 112 | |
| 113 | #ifdef ASM_6502 |
| 114 | static void asmcpu_update(int32 cycles) |
| 115 | { |
| 116 | // some code from x6502.c |
| 117 | fhcnt-=cycles; |
| 118 | if(fhcnt<=0) |
| 119 | { |
| 120 | FrameSoundUpdate(); |
| 121 | fhcnt+=fhinc; |
| 122 | } |
| 123 | |
| 124 | if(PCMIRQCount>0) |
| 125 | { |
| 126 | PCMIRQCount-=cycles; |
| 127 | if(PCMIRQCount<=0) |
| 128 | { |
| 129 | vdis=1; |
| 130 | if((PSG[0x10]&0x80) && !(PSG[0x10]&0x40)) |
| 131 | { |
| 132 | extern uint8 SIRQStat; |
| 133 | SIRQStat|=0x80; |
| 134 | X6502_IRQBegin(FCEU_IQDPCM); |
| 135 | } |
| 136 | } |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | void asmcpu_unpack(void) |
| 141 | { |
| 142 | nes_registers[0] = X.A << 24; |
| 143 | nes_registers[1] = X.X; |
| 144 | nes_registers[2] = X.Y; |
| 145 | pc_base = 0; |
| 146 | nes_registers[3] = X.PC; |
| 147 | X6502_Rebase_a(); |
| 148 | nes_registers[4] = X.S << 24; |
| 149 | nes_registers[4]|= X.IRQlow << 8; |
| 150 | nes_registers[7] = (uint32)X.count << 16; |
| 151 | |
| 152 | // NVUB DIZC |
| 153 | nes_registers[4]|= X.P & 0x5d; |
| 154 | nes_registers[5] = X.P << 24; // N |
| 155 | if (!(X.P&0x02)) nes_registers[5] |= 1; // Z |
| 156 | } |
| 157 | |
| 158 | void asmcpu_pack(void) |
| 159 | { |
| 160 | X.A = nes_registers[0] >> 24; |
| 161 | X.X = nes_registers[1]; |
| 162 | X.Y = nes_registers[2]; |
| 163 | X.PC= nes_registers[3] - pc_base; |
| 164 | X.S = nes_registers[4] >> 24; |
| 165 | X.IRQlow = nes_registers[4] >> 8; |
| 166 | X.count = (int32) nes_registers[7] >> 16; |
| 167 | |
| 168 | // NVUB DIZC |
| 169 | X.P = nes_registers[4] & 0x5d; |
| 170 | if ( nes_registers[5]&0x80000000) X.P |= 0x80; // N |
| 171 | if (!(nes_registers[5]&0x000000ff)) X.P |= 0x02; // Z |
| 172 | } |
| 173 | #endif |
| 174 | |
| 175 | DECLFW(BNull) |
| 176 | { |
| 177 | |
| 178 | } |
| 179 | |
| 180 | DECLFR(ANull) |
| 181 | { |
| 182 | return(X.DB); |
| 183 | } |
| 184 | |
| 185 | int AllocGenieRW(void) |
| 186 | { |
| 187 | if(!(AReadG=FCEU_malloc(0x8000*sizeof(readfunc)))) |
| 188 | return 0; |
| 189 | if(!(BWriteG=FCEU_malloc(0x8000*sizeof(writefunc)))) |
| 190 | return 0; |
| 191 | RWWrap=1; |
| 192 | return 1; |
| 193 | } |
| 194 | |
| 195 | void FlushGenieRW(void) |
| 196 | { |
| 197 | int32 x; |
| 198 | |
| 199 | if(RWWrap) |
| 200 | { |
| 201 | for(x=0;x<0x8000;x++) |
| 202 | { |
| 203 | ARead[x+0x8000]=AReadG[x]; |
| 204 | BWrite[x+0x8000]=BWriteG[x]; |
| 205 | } |
| 206 | #ifdef ASM_6502 |
| 207 | GenieSetPages(1); |
| 208 | #endif |
| 209 | free(AReadG); |
| 210 | free(BWriteG); |
| 211 | AReadG=0; |
| 212 | BWriteG=0; |
| 213 | RWWrap=0; |
| 214 | } |
| 215 | } |
| 216 | |
| 217 | readfunc FASTAPASS(1) GetReadHandler(int32 a) |
| 218 | { |
| 219 | if(a>=0x8000 && RWWrap) |
| 220 | return AReadG[a-0x8000]; |
| 221 | else |
| 222 | return ARead[a]; |
| 223 | } |
| 224 | |
| 225 | void FASTAPASS(3) SetReadHandler(int32 start, int32 end, readfunc func) |
| 226 | { |
| 227 | int32 x; |
| 228 | |
| 229 | if(!func) |
| 230 | func=ANull; |
| 231 | |
| 232 | if(RWWrap) |
| 233 | for(x=end;x>=start;x--) |
| 234 | { |
| 235 | if(x>=0x8000) |
| 236 | AReadG[x-0x8000]=func; |
| 237 | else |
| 238 | ARead[x]=func; |
| 239 | } |
| 240 | else |
| 241 | |
| 242 | for(x=end;x>=start;x--) |
| 243 | ARead[x]=func; |
| 244 | } |
| 245 | |
| 246 | writefunc FASTAPASS(1) GetWriteHandler(int32 a) |
| 247 | { |
| 248 | if(RWWrap && a>=0x8000) |
| 249 | return BWriteG[a-0x8000]; |
| 250 | else |
| 251 | return BWrite[a]; |
| 252 | } |
| 253 | |
| 254 | void FASTAPASS(3) SetWriteHandler(int32 start, int32 end, writefunc func) |
| 255 | { |
| 256 | int32 x; |
| 257 | |
| 258 | if(!func) |
| 259 | func=BNull; |
| 260 | |
| 261 | if(RWWrap) |
| 262 | for(x=end;x>=start;x--) |
| 263 | { |
| 264 | if(x>=0x8000) |
| 265 | BWriteG[x-0x8000]=func; |
| 266 | else |
| 267 | BWrite[x]=func; |
| 268 | } |
| 269 | else |
| 270 | for(x=end;x>=start;x--) |
| 271 | BWrite[x]=func; |
| 272 | } |
| 273 | |
| 274 | uint8 vtoggle=0; |
| 275 | uint8 XOffset=0; |
| 276 | |
| 277 | uint32 TempAddr,RefreshAddr; |
| 278 | |
| 279 | |
| 280 | /* scanline is equal to the current visible scanline we're on. */ |
| 281 | |
| 282 | int scanline; |
| 283 | |
| 284 | uint8 GameMemBlock[131072] __attribute__ ((aligned (4))); |
| 285 | uint8 NTARAM[0x800] __attribute__ ((aligned (4))); |
| 286 | uint8 PALRAM[0x20] __attribute__ ((aligned (4))); |
| 287 | #if !defined(ASM_6502) || defined(DEBUG_ASM_6502) |
| 288 | uint8 RAM[0x800] __attribute__ ((aligned (4))); |
| 289 | #endif |
| 290 | |
| 291 | uint8 PPU[4]; |
| 292 | uint8 PPUSPL; |
| 293 | |
| 294 | uint8 PAL=0; |
| 295 | |
| 296 | |
| 297 | #define MMC5BGVRAMADR(V) &MMC5BGVPage[(V)>>10][(V)] |
| 298 | #define VRAMADR(V) &VPage[(V)>>10][(V)] |
| 299 | |
| 300 | static int linestartts; |
| 301 | static int tofix=0; |
| 302 | |
| 303 | static void ResetRL(void) |
| 304 | { |
| 305 | linestartts=timestamp*48+X6502_GetCycleCount(); |
| 306 | tofix=1; |
| 307 | } |
| 308 | |
| 309 | static INLINE void Fixit1(void); |
| 310 | |
| 311 | static void TryFixit1(void) |
| 312 | { |
| 313 | #define TOFIXNUM (272-0x4) |
| 314 | int lastpixel; |
| 315 | |
| 316 | if (scanline < 240 && tofix) |
| 317 | { |
| 318 | lastpixel = (timestamp*48-linestartts)>>4; |
| 319 | if (PAL) lastpixel += lastpixel>>4; |
| 320 | |
| 321 | //printf("lastpixel: %i\n", lastpixel); |
| 322 | |
| 323 | if(lastpixel>=TOFIXNUM) |
| 324 | { |
| 325 | Fixit1(); |
| 326 | tofix=0; |
| 327 | } |
| 328 | } |
| 329 | } |
| 330 | |
| 331 | |
| 332 | static DECLFW(BRAML) |
| 333 | { |
| 334 | RAM[A]=V; |
| 335 | } |
| 336 | |
| 337 | static DECLFW(BRAMH) |
| 338 | { |
| 339 | RAM[A&0x7FF]=V; |
| 340 | } |
| 341 | |
| 342 | static DECLFR(ARAML) |
| 343 | { |
| 344 | return RAM[A]; |
| 345 | } |
| 346 | |
| 347 | static DECLFR(ARAMH) |
| 348 | { |
| 349 | return RAM[A&0x7FF]; |
| 350 | } |
| 351 | |
| 352 | |
| 353 | static DECLFR(A2002) |
| 354 | { |
| 355 | /* merged */ |
| 356 | uint8 ret; |
| 357 | |
| 358 | TryFixit1(); |
| 359 | ret = PPU_status; |
| 360 | ret|=PPUGenLatch&0x1F; |
| 361 | vtoggle=0; |
| 362 | PPU_status&=0x7F; |
| 363 | PPUGenLatch=ret; |
| 364 | //dprintf("r [2002] %02x",ret); |
| 365 | return ret; |
| 366 | } |
| 367 | |
| 368 | static DECLFR(A200x) |
| 369 | { |
| 370 | /* merged */ |
| 371 | TryFixit1(); |
| 372 | return PPUGenLatch; |
| 373 | } |
| 374 | |
| 375 | static DECLFR(A2007) |
| 376 | { |
| 377 | /* merged */ |
| 378 | uint8 ret; |
| 379 | uint32 tmp=RefreshAddr&0x3FFF; |
| 380 | |
| 381 | TryFixit1(); |
| 382 | |
| 383 | ret=VRAMBuffer; |
| 384 | |
| 385 | if(PPU_hook) PPU_hook(tmp); |
| 386 | PPUGenLatch=VRAMBuffer; |
| 387 | if(tmp<0x2000) |
| 388 | { |
| 389 | VRAMBuffer=VPage[tmp>>10][tmp]; |
| 390 | } |
| 391 | else |
| 392 | { |
| 393 | VRAMBuffer=vnapage[(tmp>>10)&0x3][tmp&0x3FF]; |
| 394 | } |
| 395 | |
| 396 | if (INC32) RefreshAddr+=32; |
| 397 | else RefreshAddr++; |
| 398 | if(PPU_hook) PPU_hook(RefreshAddr&0x3fff); |
| 399 | dprintf("r [2007] %02x",ret); |
| 400 | return ret; |
| 401 | } |
| 402 | |
| 403 | static DECLFW(B2000) |
| 404 | { |
| 405 | /* NMI2? */ |
| 406 | TryFixit1(); |
| 407 | PPUGenLatch=V; |
| 408 | PPU[0]=V; |
| 409 | TempAddr&=0xF3FF; |
| 410 | TempAddr|=(V&3)<<10; |
| 411 | } |
| 412 | |
| 413 | static DECLFW(B2001) |
| 414 | { |
| 415 | /* merged */ |
| 416 | TryFixit1(); |
| 417 | PPUGenLatch=V; |
| 418 | PPU[1]=V; |
| 419 | if(V&0xE0) |
| 420 | deemp=V>>5; |
| 421 | //printf("$%04x:$%02x, %d\n",X.PC,V,scanline); |
| 422 | } |
| 423 | |
| 424 | static DECLFW(B2002) |
| 425 | { |
| 426 | /* merged */ |
| 427 | PPUGenLatch=V; |
| 428 | } |
| 429 | |
| 430 | static DECLFW(B2003) |
| 431 | { |
| 432 | /* merged */ |
| 433 | PPUGenLatch=V; |
| 434 | PPU[3]=V; |
| 435 | PPUSPL=V&0x7; |
| 436 | } |
| 437 | |
| 438 | static DECLFW(B2004) |
| 439 | { |
| 440 | /* merged */ |
| 441 | PPUGenLatch=V; |
| 442 | if(PPUSPL>=8) |
| 443 | { |
| 444 | if(PPU[3]>=8) |
| 445 | SPRAM[PPU[3]]=V; |
| 446 | } |
| 447 | else |
| 448 | { |
| 449 | //printf("$%02x:$%02x\n",PPUSPL,V); |
| 450 | SPRAM[PPUSPL]=V; |
| 451 | } |
| 452 | PPU[3]++; |
| 453 | PPUSPL++; |
| 454 | |
| 455 | } |
| 456 | |
| 457 | static DECLFW(B2005) |
| 458 | { |
| 459 | /* merged */ |
| 460 | uint32 tmp=TempAddr; |
| 461 | TryFixit1(); |
| 462 | PPUGenLatch=V; |
| 463 | if (!vtoggle) |
| 464 | { |
| 465 | tmp&=0xFFE0; |
| 466 | tmp|=V>>3; |
| 467 | XOffset=V&7; |
| 468 | } |
| 469 | else |
| 470 | { |
| 471 | tmp&=0x8C1F; |
| 472 | tmp|=((V&~0x7)<<2); |
| 473 | tmp|=(V&7)<<12; |
| 474 | } |
| 475 | |
| 476 | TempAddr=tmp; |
| 477 | vtoggle^=1; |
| 478 | } |
| 479 | |
| 480 | static DECLFW(B2006) |
| 481 | { |
| 482 | /* merged */ |
| 483 | TryFixit1(); |
| 484 | |
| 485 | PPUGenLatch=V; |
| 486 | if(!vtoggle) |
| 487 | { |
| 488 | TempAddr&=0x00FF; |
| 489 | TempAddr|=(V&0x3f)<<8; |
| 490 | } |
| 491 | else |
| 492 | { |
| 493 | TempAddr&=0xFF00; |
| 494 | TempAddr|=V; |
| 495 | |
| 496 | RefreshAddr=TempAddr; |
| 497 | if(PPU_hook) |
| 498 | PPU_hook(RefreshAddr); |
| 499 | } |
| 500 | vtoggle^=1; |
| 501 | } |
| 502 | |
| 503 | static DECLFW(B2007) |
| 504 | { |
| 505 | /* merged */ |
| 506 | uint32 tmp=RefreshAddr&0x3FFF; |
| 507 | PPUGenLatch=V; |
| 508 | if(tmp>=0x3F00) |
| 509 | { |
| 510 | // hmmm.... |
| 511 | if(!(tmp&0xf)) |
| 512 | PALRAM[0x00]=PALRAM[0x04]=PALRAM[0x08]=PALRAM[0x0C]=V&0x3f; |
| 513 | else if(tmp&3) PALRAM[(tmp&0x1f)]=V&0x3f; |
| 514 | } |
| 515 | else if(tmp<0x2000) |
| 516 | { |
| 517 | if(PPUCHRRAM&(1<<(tmp>>10))) |
| 518 | VPage[tmp>>10][tmp]=V; |
| 519 | } |
| 520 | else |
| 521 | { |
| 522 | if(PPUNTARAM&(1<<((tmp&0xF00)>>10))) |
| 523 | vnapage[((tmp&0xF00)>>10)][tmp&0x3FF]=V; |
| 524 | } |
| 525 | if (INC32) RefreshAddr+=32; |
| 526 | else RefreshAddr++; |
| 527 | if(PPU_hook) PPU_hook(RefreshAddr&0x3fff); |
| 528 | } |
| 529 | |
| 530 | static DECLFW(B4014) |
| 531 | { |
| 532 | uint32 t=V<<8; |
| 533 | int x; |
| 534 | |
| 535 | for(x=0;x<256;x++) |
| 536 | B2004(0x2004,X.DB=ARead[t+x](t+x)); |
| 537 | X6502_AddCycles(512); |
| 538 | } |
| 539 | |
| 540 | void BGRender(uint8 *target) |
| 541 | { |
| 542 | uint32 tem, vofs; |
| 543 | vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7); |
| 544 | |
| 545 | Pal[0]|=64; |
| 546 | Pal[4]|=64; |
| 547 | Pal[8]|=64; |
| 548 | Pal[0xC]|=64; |
| 549 | RefreshLine(target-XOffset, vofs); |
| 550 | Pal[0]&=63; |
| 551 | Pal[4]&=63; |
| 552 | Pal[8]&=63; |
| 553 | Pal[0xC]&=63; |
| 554 | |
| 555 | if(!(PPU[1]&2)) |
| 556 | { |
| 557 | tem=Pal[0]|0x40; |
| 558 | tem|=tem<<8; |
| 559 | tem|=tem<<16; |
| 560 | *(uint32 *)target=*(uint32 *)(target+4)=tem; |
| 561 | } |
| 562 | } |
| 563 | |
| 564 | #ifdef FRAMESKIP |
| 565 | int FSkip=0; |
| 566 | void FCEUI_FrameSkip(int x) |
| 567 | { |
| 568 | FSkip=x; |
| 569 | } |
| 570 | #endif |
| 571 | |
| 572 | /* This is called at the beginning of each visible scanline */ |
| 573 | static void Loop6502(void) |
| 574 | { |
| 575 | uint32 tem; |
| 576 | int x; |
| 577 | uint8 *target=XBuf+scanline*320+32; |
| 578 | |
| 579 | if(ScreenON || SpriteON) |
| 580 | { |
| 581 | /* PRefreshLine() will not get called on skipped frames. This |
| 582 | could cause a problem, but the solution would be rather complex, |
| 583 | due to the current sprite 0 hit code. |
| 584 | */ |
| 585 | #ifdef FRAMESKIP |
| 586 | if(!FSkip) |
| 587 | { |
| 588 | #endif |
| 589 | if(ScreenON) |
| 590 | { |
| 591 | if(scanline>=FSettings.FirstSLine && scanline<=FSettings.LastSLine) |
| 592 | BGRender(target); |
| 593 | else |
| 594 | { |
| 595 | if(PPU_hook) |
| 596 | PRefreshLine(); |
| 597 | } |
| 598 | } |
| 599 | else |
| 600 | { |
| 601 | tem=Pal[0]|(Pal[0]<<8)|(Pal[0]<<16)|(Pal[0]<<24); |
| 602 | tem|=0x40404040; |
| 603 | FCEU_dwmemset(target,tem,264); |
| 604 | } |
| 605 | #ifdef FRAMESKIP |
| 606 | } |
| 607 | #endif |
| 608 | if (SpriteON && scanline) |
| 609 | RefreshSprite(target); |
| 610 | #ifdef FRAMESKIP |
| 611 | if(!FSkip) |
| 612 | { |
| 613 | #endif |
| 614 | if(PPU[1]&0x01) |
| 615 | { |
| 616 | for(x=63;x>=0;x--) |
| 617 | ((uint32 *)target)[x]=((uint32*)target)[x]&0xF0F0F0F0; |
| 618 | } |
| 619 | #ifdef GP2X |
| 620 | if((PPU[1]>>5)==0x7) block_or(target, 256, 0xc0); |
| 621 | else if(PPU[1]&0xE0) block_andor(target, 256, 0x3f, 0x40); |
| 622 | else block_andor(target, 256, 0x3f, 0x80); |
| 623 | #else |
| 624 | if((PPU[1]>>5)==0x7) |
| 625 | for(x=63;x>=0;x--) |
| 626 | ((uint32 *)target)[x]=(((uint32*)target)[x])|0xc0c0c0c0; |
| 627 | else if(PPU[1]&0xE0) |
| 628 | for(x=63;x>=0;x--) |
| 629 | ((uint32 *)target)[x]=(((uint32*)target)[x]&0x3f3f3f3f)|0x40404040; |
| 630 | else |
| 631 | for(x=63;x>=0;x--) |
| 632 | ((uint32 *)target)[x]=(((uint32*)target)[x]&0x3f3f3f3f)|0x80808080; |
| 633 | #endif |
| 634 | // black borders |
| 635 | ((uint32 *)target)[-2]=((uint32 *)target)[-1]=0; |
| 636 | ((uint32 *)target)[64]=((uint32 *)target)[65]=0; |
| 637 | #ifdef FRAMESKIP |
| 638 | } |
| 639 | #endif |
| 640 | } |
| 641 | else |
| 642 | { |
| 643 | tem=Pal[0]|(Pal[0]<<8)|(Pal[0]<<16)|(Pal[0]<<24); |
| 644 | FCEU_dwmemset(target,tem,256); |
| 645 | } |
| 646 | if(InputScanlineHook) |
| 647 | InputScanlineHook(target, scanline); |
| 648 | } |
| 649 | |
| 650 | #define PAL(c) ((c)+cc) |
| 651 | |
| 652 | |
| 653 | static void PRefreshLine(void) |
| 654 | { |
| 655 | uint32 vofs; |
| 656 | uint8 X1; |
| 657 | |
| 658 | vofs = 0; |
| 659 | if (BGAdrHI) vofs = 0x1000; |
| 660 | |
| 661 | vofs+=(RefreshAddr>>12)&7; |
| 662 | |
| 663 | for(X1=33;X1;X1--) |
| 664 | { |
| 665 | register uint8 no; |
| 666 | register uint8 zz2; |
| 667 | zz2=(uint8)((RefreshAddr>>10)&3); |
| 668 | PPU_hook(0x2000|(RefreshAddr&0xFFF)); |
| 669 | no = vnapage[zz2][(RefreshAddr&0x3ff)]; |
| 670 | PPU_hook((no<<4)+vofs); |
| 671 | if((RefreshAddr&0x1f)==0x1f) |
| 672 | RefreshAddr^=0x41F; |
| 673 | else |
| 674 | RefreshAddr++; |
| 675 | } |
| 676 | } |
| 677 | |
| 678 | /* This high-level graphics MMC5 emulation code was written |
| 679 | for MMC5 carts in "CL" mode. It's probably not totally |
| 680 | correct for carts in "SL" mode. |
| 681 | */ |
| 682 | static void RefreshLine_MMC5Hack1(uint8 *P, uint32 vofs) |
| 683 | { |
| 684 | int8 tochange, X1; |
| 685 | |
| 686 | tochange=MMC5HackSPMode&0x1F; |
| 687 | |
| 688 | for(X1=33;X1;X1--,P+=8) |
| 689 | { |
| 690 | uint8 *C; |
| 691 | uint8 cc,zz,zz2; |
| 692 | uint32 vadr; |
| 693 | |
| 694 | if((tochange<=0 && MMC5HackSPMode&0x40) || |
| 695 | (tochange>0 && !(MMC5HackSPMode&0x40))) |
| 696 | { |
| 697 | uint8 xs,ys; |
| 698 | |
| 699 | xs=33-X1; |
| 700 | ys=((scanline>>3)+MMC5HackSPScroll)&0x1F; |
| 701 | if(ys>=0x1E) ys-=0x1E; |
| 702 | vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7); |
| 703 | |
| 704 | C = MMC5HackVROMPTR+vadr; |
| 705 | C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12); |
| 706 | |
| 707 | cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)]; |
| 708 | cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2; |
| 709 | } |
| 710 | else |
| 711 | { |
| 712 | zz=RefreshAddr&0x1F; |
| 713 | zz2=(RefreshAddr>>10)&3; |
| 714 | vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs; |
| 715 | C = MMC5BGVRAMADR(vadr); |
| 716 | cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)]; |
| 717 | cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2; |
| 718 | } |
| 719 | #include "fceline.h" |
| 720 | |
| 721 | if((RefreshAddr&0x1f)==0x1f) |
| 722 | RefreshAddr^=0x41F; |
| 723 | else |
| 724 | RefreshAddr++; |
| 725 | tochange--; |
| 726 | } |
| 727 | } |
| 728 | |
| 729 | static void RefreshLine_MMC5Hack2(uint8 *P, uint32 vofs) |
| 730 | { |
| 731 | int8 tochange, X1; |
| 732 | |
| 733 | tochange=MMC5HackSPMode&0x1F; |
| 734 | |
| 735 | for(X1=33;X1;X1--,P+=8) |
| 736 | { |
| 737 | uint8 *C; |
| 738 | uint8 cc; |
| 739 | uint8 zz2; |
| 740 | uint32 vadr; |
| 741 | |
| 742 | if((tochange<=0 && MMC5HackSPMode&0x40) || |
| 743 | (tochange>0 && !(MMC5HackSPMode&0x40))) |
| 744 | { |
| 745 | uint8 xs,ys; |
| 746 | |
| 747 | xs=33-X1; |
| 748 | ys=((scanline>>3)+MMC5HackSPScroll)&0x1F; |
| 749 | if(ys>=0x1E) ys-=0x1E; |
| 750 | vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7); |
| 751 | |
| 752 | C = MMC5HackVROMPTR+vadr; |
| 753 | C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12); |
| 754 | |
| 755 | cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)]; |
| 756 | cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2; |
| 757 | } |
| 758 | else |
| 759 | { |
| 760 | C=MMC5HackVROMPTR; |
| 761 | zz2=(RefreshAddr>>10)&3; |
| 762 | vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs; |
| 763 | C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f & |
| 764 | MMC5HackVROMMask) << 12) + (vadr & 0xfff); |
| 765 | vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4; |
| 766 | cc = vadr; |
| 767 | } |
| 768 | #include "fceline.h" |
| 769 | if((RefreshAddr&0x1f)==0x1f) |
| 770 | RefreshAddr^=0x41F; |
| 771 | else |
| 772 | RefreshAddr++; |
| 773 | tochange--; |
| 774 | } |
| 775 | } |
| 776 | |
| 777 | static void RefreshLine_MMC5Hack3(uint8 *P, uint32 vofs) |
| 778 | { |
| 779 | int8 X1; |
| 780 | |
| 781 | for(X1=33;X1;X1--,P+=8) |
| 782 | { |
| 783 | uint8 *C; |
| 784 | uint8 cc; |
| 785 | uint8 zz2; |
| 786 | uint32 vadr; |
| 787 | |
| 788 | C=MMC5HackVROMPTR; |
| 789 | zz2=(RefreshAddr>>10)&3; |
| 790 | vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs; |
| 791 | C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f & |
| 792 | MMC5HackVROMMask) << 12) + (vadr & 0xfff); |
| 793 | vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4; |
| 794 | cc = vadr; |
| 795 | |
| 796 | #include "fceline.h" |
| 797 | if((RefreshAddr&0x1f)==0x1f) |
| 798 | RefreshAddr^=0x41F; |
| 799 | else |
| 800 | RefreshAddr++; |
| 801 | } |
| 802 | } |
| 803 | |
| 804 | static void RefreshLine_MMC5Hack4(uint8 *P, uint32 vofs) |
| 805 | { |
| 806 | int8 X1; |
| 807 | |
| 808 | for(X1=33;X1;X1--,P+=8) |
| 809 | { |
| 810 | uint8 *C; |
| 811 | uint8 cc,zz,zz2; |
| 812 | uint32 vadr; |
| 813 | |
| 814 | zz=RefreshAddr&0x1F; |
| 815 | zz2=(RefreshAddr>>10)&3; |
| 816 | vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs; |
| 817 | C = MMC5BGVRAMADR(vadr); |
| 818 | cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)]; |
| 819 | cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2; |
| 820 | |
| 821 | #include "fceline.h" |
| 822 | |
| 823 | if((RefreshAddr&0x1f)==0x1f) |
| 824 | RefreshAddr^=0x41F; |
| 825 | else |
| 826 | RefreshAddr++; |
| 827 | } |
| 828 | } |
| 829 | |
| 830 | static void RefreshLine_PPU_hook(uint8 *P, uint32 vofs) |
| 831 | { |
| 832 | int8 X1; |
| 833 | |
| 834 | for(X1=33;X1;X1--,P+=8) |
| 835 | { |
| 836 | uint8 *C; |
| 837 | uint8 cc,zz,zz2; |
| 838 | uint32 vadr; |
| 839 | |
| 840 | zz=RefreshAddr&0x1F; |
| 841 | zz2=(RefreshAddr>>10)&3; |
| 842 | PPU_hook(0x2000|(RefreshAddr&0xFFF)); |
| 843 | cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)]; |
| 844 | cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2; |
| 845 | vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs; |
| 846 | C = VRAMADR(vadr); |
| 847 | |
| 848 | #include "fceline.h" |
| 849 | |
| 850 | PPU_hook(vadr); |
| 851 | |
| 852 | if((RefreshAddr&0x1f)==0x1f) |
| 853 | RefreshAddr^=0x41F; |
| 854 | else |
| 855 | RefreshAddr++; |
| 856 | } |
| 857 | } |
| 858 | |
| 859 | static void RefreshLine_normal(uint8 *P, uint32 vofs) // vofs is 0x107 max |
| 860 | { |
| 861 | int8 X1; |
| 862 | uint32 rfraddr = RefreshAddr; |
| 863 | uint8 *page = vnapage[(rfraddr>>10)&3]; |
| 864 | uint32 cc2=0; |
| 865 | |
| 866 | if ((rfraddr&0xc)!=0) |
| 867 | cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0); |
| 868 | |
| 869 | for (X1=33;X1;X1--,P+=8) |
| 870 | { |
| 871 | uint8 cc,*C; |
| 872 | uint32 vadr; |
| 873 | |
| 874 | vadr=(page[rfraddr&0x3ff]<<4)+vofs; |
| 875 | C = VRAMADR(vadr); |
| 876 | if ((rfraddr&0xc)==0) |
| 877 | cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0); |
| 878 | cc=((cc2 >> ((rfraddr&2) + ((rfraddr&0x40)>>4) + ((rfraddr&0xc)<<1))) & 3) << 2; |
| 879 | |
| 880 | #include "fceline.h" |
| 881 | |
| 882 | if((rfraddr&0x1f)==0x1f) { |
| 883 | rfraddr^=0x41F; |
| 884 | page = vnapage[(rfraddr>>10)&3]; |
| 885 | } else |
| 886 | rfraddr++; |
| 887 | } |
| 888 | RefreshAddr = rfraddr; |
| 889 | } |
| 890 | |
| 891 | static void SetRefreshLine(void) |
| 892 | { |
| 893 | if(MMC5Hack && geniestage!=1) |
| 894 | { |
| 895 | if(MMC5HackCHRMode==0 && (MMC5HackSPMode&0x80)) |
| 896 | { |
| 897 | if (RefreshLine != RefreshLine_MMC5Hack1) printf("set refr RefreshLine_MMC5Hack1\n"); |
| 898 | RefreshLine = RefreshLine_MMC5Hack1; |
| 899 | } |
| 900 | else if(MMC5HackCHRMode==1 && (MMC5HackSPMode&0x80)) |
| 901 | { |
| 902 | if (RefreshLine != RefreshLine_MMC5Hack2) printf("set refr RefreshLine_MMC5Hack2\n"); |
| 903 | RefreshLine = RefreshLine_MMC5Hack2; |
| 904 | } |
| 905 | else if(MMC5HackCHRMode==1) |
| 906 | { |
| 907 | if (RefreshLine != RefreshLine_MMC5Hack3) printf("set refr RefreshLine_MMC5Hack3\n"); |
| 908 | RefreshLine = RefreshLine_MMC5Hack3; |
| 909 | } |
| 910 | else |
| 911 | { |
| 912 | if (RefreshLine != RefreshLine_MMC5Hack4) printf("set refr RefreshLine_MMC5Hack4\n"); |
| 913 | RefreshLine = RefreshLine_MMC5Hack4; |
| 914 | } |
| 915 | } // End if(MMC5Hack) |
| 916 | else if(PPU_hook) |
| 917 | { |
| 918 | if (RefreshLine != RefreshLine_PPU_hook) printf("set refr RefreshLine_PPU_hook\n"); |
| 919 | RefreshLine = RefreshLine_PPU_hook; |
| 920 | } |
| 921 | else |
| 922 | { |
| 923 | if (RefreshLine != RefreshLine_normal) printf("set refr RefreshLine_normal\n"); |
| 924 | RefreshLine = RefreshLine_normal; |
| 925 | } |
| 926 | } |
| 927 | |
| 928 | static INLINE |
| 929 | void Fixit2(void) |
| 930 | { |
| 931 | if(ScreenON || SpriteON) |
| 932 | { |
| 933 | uint32 rad=RefreshAddr; |
| 934 | rad&=0xFBE0; |
| 935 | rad|=TempAddr&0x041f; |
| 936 | RefreshAddr=rad; |
| 937 | //PPU_hook(RefreshAddr,-1); |
| 938 | } |
| 939 | } |
| 940 | |
| 941 | static INLINE |
| 942 | void Fixit1(void) |
| 943 | { |
| 944 | if(ScreenON || SpriteON) |
| 945 | { |
| 946 | uint32 rad=RefreshAddr; |
| 947 | |
| 948 | if((rad&0x7000)==0x7000) |
| 949 | { |
| 950 | rad^=0x7000; |
| 951 | if((rad&0x3E0)==0x3A0) |
| 952 | { |
| 953 | rad^=0x3A0; |
| 954 | rad^=0x800; |
| 955 | } |
| 956 | else |
| 957 | { |
| 958 | if((rad&0x3E0)==0x3e0) |
| 959 | rad^=0x3e0; |
| 960 | else rad+=0x20; |
| 961 | } |
| 962 | } |
| 963 | else |
| 964 | rad+=0x1000; |
| 965 | RefreshAddr=rad; |
| 966 | //PPU_hook(RefreshAddr,-1); |
| 967 | } |
| 968 | } |
| 969 | |
| 970 | |
| 971 | /* This is called at the beginning of all h-blanks on visible lines. */ |
| 972 | static void DoHBlank(void) |
| 973 | { |
| 974 | if(ScreenON || SpriteON) |
| 975 | FetchSpriteData(); |
| 976 | if(GameHBIRQHook && (ScreenON || SpriteON) && ((PPU[0]&0x38)!=0x18)) |
| 977 | { |
| 978 | X6502_Run(6); |
| 979 | Fixit2(); |
| 980 | X6502_Run(4); |
| 981 | GameHBIRQHook(); |
| 982 | X6502_Run(85-16-10); |
| 983 | } |
| 984 | else |
| 985 | { |
| 986 | X6502_Run(6); // Tried 65, caused problems with Slalom(maybe others) |
| 987 | Fixit2(); |
| 988 | X6502_Run(85-6-16); |
| 989 | } |
| 990 | if(GameHBIRQHook2 && (ScreenON || SpriteON)) |
| 991 | GameHBIRQHook2(); |
| 992 | //PPU_hook(0,-1); |
| 993 | //fprintf(stderr,"%3d: $%04x\n",scanline,RefreshAddr); |
| 994 | scanline++; |
| 995 | if (scanline<240) |
| 996 | ResetRL(); |
| 997 | X6502_Run(16); |
| 998 | } |
| 999 | |
| 1000 | |
| 1001 | // ============================// |
| 1002 | // end of new code |
| 1003 | // ===========================// |
| 1004 | |
| 1005 | void ResetMapping(void) |
| 1006 | { |
| 1007 | int x; |
| 1008 | |
| 1009 | SetReadHandler(0x0000,0xFFFF,ANull); |
| 1010 | SetWriteHandler(0x0000,0xFFFF,BNull); |
| 1011 | |
| 1012 | SetReadHandler(0,0x7FF,ARAML); |
| 1013 | SetWriteHandler(0,0x7FF,BRAML); |
| 1014 | |
| 1015 | SetReadHandler(0x800,0x1FFF,ARAMH); /* Part of a little */ |
| 1016 | SetWriteHandler(0x800,0x1FFF,BRAMH); /* hack for a small speed boost. */ |
| 1017 | |
| 1018 | for(x=0x2000;x<0x4000;x+=8) |
| 1019 | { |
| 1020 | ARead[x]=A200x; |
| 1021 | BWrite[x]=B2000; |
| 1022 | ARead[x+1]=A200x; |
| 1023 | BWrite[x+1]=B2001; |
| 1024 | ARead[x+2]=A2002; |
| 1025 | BWrite[x+2]=B2002; |
| 1026 | ARead[x+3]=A200x; |
| 1027 | BWrite[x+3]=B2003; |
| 1028 | ARead[x+4]=A200x; |
| 1029 | BWrite[x+4]=B2004; |
| 1030 | ARead[x+5]=A200x; |
| 1031 | BWrite[x+5]=B2005; |
| 1032 | ARead[x+6]=A200x; |
| 1033 | BWrite[x+6]=B2006; |
| 1034 | ARead[x+7]=A2007; |
| 1035 | BWrite[x+7]=B2007; |
| 1036 | } |
| 1037 | |
| 1038 | BWrite[0x4014]=B4014; |
| 1039 | SetNESSoundMap(); |
| 1040 | InitializeInput(); |
| 1041 | } |
| 1042 | |
| 1043 | int GameLoaded=0; |
| 1044 | void CloseGame(void) |
| 1045 | { |
| 1046 | if(GameLoaded) |
| 1047 | { |
| 1048 | if(FCEUGameInfo.type!=GIT_NSF) |
| 1049 | FCEU_FlushGameCheats(0,0); |
| 1050 | #ifdef NETWORK |
| 1051 | if(FSettings.NetworkPlay) KillNetplay(); |
| 1052 | #endif |
| 1053 | GameInterface(GI_CLOSE); |
| 1054 | CloseGenie(); |
| 1055 | GameLoaded=0; |
| 1056 | } |
| 1057 | } |
| 1058 | |
| 1059 | void ResetGameLoaded(void) |
| 1060 | { |
| 1061 | if(GameLoaded) CloseGame(); |
| 1062 | GameStateRestore=0; |
| 1063 | PPU_hook=0; |
| 1064 | GameHBIRQHook=GameHBIRQHook2=0; |
| 1065 | GameExpSound.Fill=0; |
| 1066 | GameExpSound.RChange=0; |
| 1067 | if(GameExpSound.Kill) |
| 1068 | GameExpSound.Kill(); |
| 1069 | GameExpSound.Kill=0; |
| 1070 | MapIRQHook=0; |
| 1071 | MMC5Hack=0; |
| 1072 | PAL&=1; |
| 1073 | pale=0; |
| 1074 | |
| 1075 | FCEUGameInfo.name=0; |
| 1076 | FCEUGameInfo.type=GIT_CART; |
| 1077 | FCEUGameInfo.vidsys=GIV_USER; |
| 1078 | FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=-1; |
| 1079 | FCEUGameInfo.inputfc=-1; |
| 1080 | } |
| 1081 | |
| 1082 | char lastLoadedGameName [2048]; |
| 1083 | int LoadGameLastError = 0; |
| 1084 | int UNIFLoad(const char *name, int fp); |
| 1085 | int iNESLoad(const char *name, int fp); |
| 1086 | int FDSLoad(const char *name, int fp); |
| 1087 | int NSFLoad(int fp); |
| 1088 | |
| 1089 | FCEUGI *FCEUI_LoadGame(char *name) |
| 1090 | { |
| 1091 | char name2[512]; |
| 1092 | int have_movie = 0; |
| 1093 | int fp; |
| 1094 | |
| 1095 | //Exit=1; |
| 1096 | LoadGameLastError = 0; |
| 1097 | ResetGameLoaded(); |
| 1098 | |
| 1099 | strncpy(name2, name, sizeof(name2)); |
| 1100 | name2[sizeof(name2)-1] = 0; |
| 1101 | |
| 1102 | fp=FCEU_fopen(name2,"rb"); |
| 1103 | if(!fp) |
| 1104 | { |
| 1105 | FCEU_PrintError("Error opening \"%s\"!",name); |
| 1106 | LoadGameLastError = 1; |
| 1107 | return 0; |
| 1108 | } |
| 1109 | |
| 1110 | { |
| 1111 | char *p = name2 + strlen(name2) - 4; |
| 1112 | if (strcmp(p, ".fcm") == 0) |
| 1113 | { |
| 1114 | // movie detected |
| 1115 | printf("movie detected\n"); |
| 1116 | FCEU_fclose(fp); |
| 1117 | *p = 0; |
| 1118 | fp=FCEU_fopen(name2,"rb"); |
| 1119 | if (!fp && p - name2 > 2) p[-2] = 0; |
| 1120 | fp=FCEU_fopen(name2,"rb"); |
| 1121 | if (!fp) { |
| 1122 | printf("no ROM for movie\n"); |
| 1123 | LoadGameLastError = 2; |
| 1124 | return 0; |
| 1125 | } |
| 1126 | have_movie = 1; |
| 1127 | } |
| 1128 | } |
| 1129 | |
| 1130 | GetFileBase(name2); |
| 1131 | if(iNESLoad(name2,fp)) |
| 1132 | goto endlseq; |
| 1133 | if(NSFLoad(fp)) |
| 1134 | goto endlseq; |
| 1135 | if(FDSLoad(name2,fp)) |
| 1136 | goto endlseq; |
| 1137 | if(UNIFLoad(name2,fp)) |
| 1138 | goto endlseq; |
| 1139 | |
| 1140 | FCEU_PrintError("An error occurred while loading the file."); |
| 1141 | FCEU_fclose(fp); |
| 1142 | // format handlers may set LoadGameLastError themselves. |
| 1143 | if (LoadGameLastError == 0) LoadGameLastError = 3; |
| 1144 | return 0; |
| 1145 | |
| 1146 | endlseq: |
| 1147 | FCEU_fclose(fp); |
| 1148 | GameLoaded=1; |
| 1149 | |
| 1150 | FCEU_ResetVidSys(); |
| 1151 | if(FCEUGameInfo.type!=GIT_NSF) |
| 1152 | if(FSettings.GameGenie) |
| 1153 | OpenGenie(); |
| 1154 | |
| 1155 | PowerNES(); |
| 1156 | #ifdef NETWORK |
| 1157 | if(FSettings.NetworkPlay) InitNetplay(); |
| 1158 | #endif |
| 1159 | SaveStateRefresh(); |
| 1160 | if(FCEUGameInfo.type!=GIT_NSF) |
| 1161 | { |
| 1162 | FCEU_LoadGamePalette(); |
| 1163 | FCEU_LoadGameCheats(0); |
| 1164 | } |
| 1165 | |
| 1166 | FCEU_ResetPalette(); |
| 1167 | Exit=0; |
| 1168 | |
| 1169 | if (have_movie) |
| 1170 | FCEUI_LoadMovie(name, 1); |
| 1171 | |
| 1172 | strcpy(lastLoadedGameName, name2); |
| 1173 | |
| 1174 | return(&FCEUGameInfo); |
| 1175 | } |
| 1176 | |
| 1177 | |
| 1178 | void FCEU_ResetVidSys(void) |
| 1179 | { |
| 1180 | int w; |
| 1181 | |
| 1182 | if(FCEUGameInfo.vidsys==GIV_NTSC) |
| 1183 | w=0; |
| 1184 | else if(FCEUGameInfo.vidsys==GIV_PAL) |
| 1185 | w=1; |
| 1186 | else |
| 1187 | w=FSettings.PAL; |
| 1188 | |
| 1189 | if(w) |
| 1190 | { |
| 1191 | PAL=1; |
| 1192 | FSettings.FirstSLine=FSettings.UsrFirstSLine[1]; |
| 1193 | FSettings.LastSLine=FSettings.UsrLastSLine[1]; |
| 1194 | } |
| 1195 | else |
| 1196 | { |
| 1197 | PAL=0; |
| 1198 | FSettings.FirstSLine=FSettings.UsrFirstSLine[0]; |
| 1199 | FSettings.LastSLine=FSettings.UsrLastSLine[0]; |
| 1200 | } |
| 1201 | printf("ResetVidSys: PAL = %i\n", PAL); |
| 1202 | SetSoundVariables(); |
| 1203 | } |
| 1204 | |
| 1205 | int FCEUI_Initialize(void) |
| 1206 | { |
| 1207 | if(!InitVirtualVideo()) |
| 1208 | return 0; |
| 1209 | memset(&FSettings,0,sizeof(FSettings)); |
| 1210 | FSettings.UsrFirstSLine[0]=8; |
| 1211 | FSettings.UsrFirstSLine[1]=0; |
| 1212 | FSettings.UsrLastSLine[0]=FSettings.UsrLastSLine[1]=239; |
| 1213 | FSettings.SoundVolume=100; |
| 1214 | return 1; |
| 1215 | } |
| 1216 | |
| 1217 | void MMC5_hb(int); /* Ugh ugh ugh. */ |
| 1218 | static INLINE void Thingo(void) |
| 1219 | { |
| 1220 | Loop6502(); |
| 1221 | |
| 1222 | if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline); |
| 1223 | |
| 1224 | // check: Battletoads & Double Dragon |
| 1225 | if(tosprite>=256) |
| 1226 | { |
| 1227 | X6502_Run(256); |
| 1228 | } |
| 1229 | else |
| 1230 | { |
| 1231 | // sky glitches in SMB1 if done wrong |
| 1232 | X6502_Run(tosprite); |
| 1233 | PPU[2]|=0x40; |
| 1234 | X6502_Run(256-tosprite); |
| 1235 | tosprite = 256; |
| 1236 | } |
| 1237 | TryFixit1(); |
| 1238 | DoHBlank(); |
| 1239 | } |
| 1240 | |
| 1241 | void EmLoop(void) |
| 1242 | { |
| 1243 | for(;;) |
| 1244 | { |
| 1245 | int x; |
| 1246 | uint32 scanlines_per_frame = PAL ? 312 : 262; |
| 1247 | UpdateInput(); |
| 1248 | FCEU_ApplyPeriodicCheats(); |
| 1249 | |
| 1250 | // FCEUPPU_Loop: |
| 1251 | if(ppudead) /* Needed for Knight Rider, possibly others. */ |
| 1252 | { |
| 1253 | //memset(XBuf, 0, 320*240); |
| 1254 | X6502_Run(scanlines_per_frame*(256+85)); |
| 1255 | ppudead--; |
| 1256 | goto update; |
| 1257 | } |
| 1258 | |
| 1259 | X6502_Run(256+85); |
| 1260 | |
| 1261 | PPU[2]|=0x80; |
| 1262 | PPU[3]=PPUSPL=0; /* Not sure if this is correct. According |
| 1263 | to Matt Conte and my own tests, it is. Timing is probably |
| 1264 | off, though. NOTE: Not having this here |
| 1265 | breaks a Super Donkey Kong game. */ |
| 1266 | |
| 1267 | X6502_Run(12); /* I need to figure out the true nature and length |
| 1268 | of this delay. |
| 1269 | */ |
| 1270 | if(FCEUGameInfo.type==GIT_NSF) |
| 1271 | DoNSFFrame(); |
| 1272 | else if(VBlankON) |
| 1273 | TriggerNMI(); |
| 1274 | |
| 1275 | // Note: this is needed for asm core |
| 1276 | // Warning: using 'scanline' var here breaks Castlevania III |
| 1277 | { |
| 1278 | int lines; |
| 1279 | X6502_Run(256+85-12); |
| 1280 | for (lines=scanlines_per_frame-242-1;lines;lines--) |
| 1281 | X6502_Run(256+85); |
| 1282 | } |
| 1283 | // X6502_Run((scanlines_per_frame-242)*(256+85)-12); |
| 1284 | PPU_status&=0x1f; |
| 1285 | X6502_Run(256); |
| 1286 | |
| 1287 | { |
| 1288 | if(ScreenON || SpriteON) |
| 1289 | { |
| 1290 | if(GameHBIRQHook) |
| 1291 | GameHBIRQHook(); |
| 1292 | if(PPU_hook) |
| 1293 | for(x=0;x<42;x++) {PPU_hook(0x2000); PPU_hook(0);} // ugh |
| 1294 | if(GameHBIRQHook2) |
| 1295 | GameHBIRQHook2(); |
| 1296 | } |
| 1297 | |
| 1298 | X6502_Run(85-16); |
| 1299 | |
| 1300 | if(ScreenON || SpriteON) |
| 1301 | { |
| 1302 | RefreshAddr=TempAddr; |
| 1303 | if(PPU_hook) PPU_hook(RefreshAddr&0x3fff); |
| 1304 | } |
| 1305 | ResetRL(); |
| 1306 | |
| 1307 | X6502_Run(16-kook); |
| 1308 | kook ^= 1; |
| 1309 | } |
| 1310 | |
| 1311 | if(FCEUGameInfo.type==GIT_NSF) |
| 1312 | { |
| 1313 | // run scanlines for asm core to fuction |
| 1314 | for(scanline=0;scanline<240;scanline++) |
| 1315 | X6502_Run(256+85); |
| 1316 | } |
| 1317 | else |
| 1318 | { |
| 1319 | int x,max,maxref; |
| 1320 | |
| 1321 | deemp=PPU[1]>>5; |
| 1322 | SetRefreshLine(); |
| 1323 | for(scanline=0;scanline<240;) // scanline is incremented in DoLine. Evil. :/ |
| 1324 | { |
| 1325 | deempcnt[deemp]++; |
| 1326 | Thingo(); |
| 1327 | } |
| 1328 | if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline); |
| 1329 | for(x=1,max=0,maxref=0;x<7;x++) |
| 1330 | { |
| 1331 | if(deempcnt[x]>max) |
| 1332 | { |
| 1333 | max=deempcnt[x]; |
| 1334 | maxref=x; |
| 1335 | } |
| 1336 | deempcnt[x]=0; |
| 1337 | } |
| 1338 | SetNESDeemph(maxref,0); |
| 1339 | } |
| 1340 | |
| 1341 | update: |
| 1342 | { |
| 1343 | int ssize; |
| 1344 | |
| 1345 | ssize=FlushEmulateSound(); |
| 1346 | |
| 1347 | timestampbase += timestamp; |
| 1348 | timestamp = 0; |
| 1349 | |
| 1350 | #ifdef FRAMESKIP |
| 1351 | if(FSkip) |
| 1352 | { |
| 1353 | FCEU_PutImageDummy(); |
| 1354 | FSkip--; |
| 1355 | FCEUD_Update(0,WaveFinalMono,ssize); |
| 1356 | } |
| 1357 | else |
| 1358 | #endif |
| 1359 | { |
| 1360 | FCEU_PutImage(); |
| 1361 | FCEUD_Update(XBuf+8,WaveFinalMono,ssize); |
| 1362 | } |
| 1363 | } |
| 1364 | |
| 1365 | if(Exit) |
| 1366 | { |
| 1367 | //CloseGame(); |
| 1368 | break; |
| 1369 | } |
| 1370 | |
| 1371 | } // for |
| 1372 | } |
| 1373 | |
| 1374 | #ifdef FPS |
| 1375 | #include <sys/time.h> |
| 1376 | uint64 frcount; |
| 1377 | #endif |
| 1378 | void FCEUI_Emulate(void) |
| 1379 | { |
| 1380 | #ifdef FPS |
| 1381 | uint64 starttime,end; |
| 1382 | struct timeval tv; |
| 1383 | frcount=0; |
| 1384 | gettimeofday(&tv,0); |
| 1385 | starttime=((uint64)tv.tv_sec*1000000)+tv.tv_usec; |
| 1386 | #endif |
| 1387 | EmLoop(); |
| 1388 | |
| 1389 | #ifdef FPS |
| 1390 | // Probably won't work well on Windows port; for |
| 1391 | // debugging/speed testing. |
| 1392 | { |
| 1393 | uint64 w; |
| 1394 | int i,frac; |
| 1395 | gettimeofday(&tv,0); |
| 1396 | end=((uint64)tv.tv_sec*1000000)+tv.tv_usec; |
| 1397 | w=frcount*10000000000LL/(end-starttime); |
| 1398 | i=w/10000; |
| 1399 | frac=w-i*10000; |
| 1400 | printf("Average FPS: %d.%04d\n",i,frac); |
| 1401 | } |
| 1402 | #endif |
| 1403 | |
| 1404 | } |
| 1405 | |
| 1406 | void FCEUI_CloseGame(void) |
| 1407 | { |
| 1408 | Exit=1; |
| 1409 | } |
| 1410 | |
| 1411 | static void ResetPPU(void) |
| 1412 | { |
| 1413 | VRAMBuffer=PPU[0]=PPU[1]=PPU[2]=PPU[3]=0; |
| 1414 | PPUSPL=0; |
| 1415 | PPUGenLatch=0; |
| 1416 | RefreshAddr=TempAddr=0; |
| 1417 | vtoggle = 0; |
| 1418 | ppudead = 2; |
| 1419 | kook = 0; |
| 1420 | } |
| 1421 | |
| 1422 | static void PowerPPU(void) |
| 1423 | { |
| 1424 | memset(NTARAM,0x00,0x800); |
| 1425 | memset(PALRAM,0x00,0x20); |
| 1426 | memset(SPRAM,0x00,0x100); |
| 1427 | ResetPPU(); |
| 1428 | } |
| 1429 | |
| 1430 | void ResetNES(void) |
| 1431 | { |
| 1432 | if(!GameLoaded) return; |
| 1433 | GameInterface(GI_RESETM2); |
| 1434 | ResetSound(); |
| 1435 | ResetPPU(); |
| 1436 | X6502_Reset(); |
| 1437 | } |
| 1438 | |
| 1439 | static void FCEU_MemoryRand(uint8 *ptr, uint32 size) |
| 1440 | { |
| 1441 | int x=0; |
| 1442 | while(size) |
| 1443 | { |
| 1444 | *ptr=(x&4)?0xFF:0x00; |
| 1445 | x++; |
| 1446 | size--; |
| 1447 | ptr++; |
| 1448 | } |
| 1449 | } |
| 1450 | |
| 1451 | void PowerNES(void) |
| 1452 | { |
| 1453 | if(!GameLoaded) return; |
| 1454 | |
| 1455 | FCEU_CheatResetRAM(); |
| 1456 | FCEU_CheatAddRAM(2,0,RAM); |
| 1457 | |
| 1458 | GeniePower(); |
| 1459 | |
| 1460 | #ifndef DEBUG_ASM_6502 |
| 1461 | FCEU_MemoryRand(RAM,0x800); |
| 1462 | #else |
| 1463 | memset(RAM,0x00,0x800); |
| 1464 | #endif |
| 1465 | ResetMapping(); |
| 1466 | GameInterface(GI_POWER); |
| 1467 | PowerSound(); |
| 1468 | PowerPPU(); |
| 1469 | timestampbase=0; |
| 1470 | #ifdef ASM_6502 |
| 1471 | if (geniestage) |
| 1472 | GenieSetPages(0); |
| 1473 | #endif |
| 1474 | X6502_Power(); |
| 1475 | } |
| 1476 | |
| 1477 | |
| 1478 | /* savestate stuff */ |
| 1479 | uint16 TempAddrT,RefreshAddrT; |
| 1480 | |
| 1481 | SFORMAT FCEUPPU_STATEINFO[]={ |
| 1482 | { NTARAM, 0x800, "NTAR"}, |
| 1483 | { PALRAM, 0x20, "PRAM"}, |
| 1484 | { SPRAM, 0x100, "SPRA"}, |
| 1485 | { PPU, 0x4, "PPUR"}, |
| 1486 | { &XOffset, 1, "XOFF"}, |
| 1487 | { &vtoggle, 1, "VTOG"}, |
| 1488 | { &RefreshAddrT, 2|RLSB, "RADD"}, |
| 1489 | { &TempAddrT, 2|RLSB, "TADD"}, |
| 1490 | { &VRAMBuffer, 1, "VBUF"}, |
| 1491 | { &PPUGenLatch, 1, "PGEN"}, |
| 1492 | // from 0.98.15 |
| 1493 | { &kook, 1, "KOOK"}, |
| 1494 | { &ppudead, 1, "DEAD"}, |
| 1495 | { &PPUSPL, 1, "PSPL"}, |
| 1496 | { 0 } |
| 1497 | }; |
| 1498 | |
| 1499 | |