fce.c

   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        "fceu098.h"
  30 #include        "sound.h"
  31 #include        "svga.h"
  32 #include        "netplay.h"
  33 #include        "general.h"
  34 #include        "endian.h"
  35 #include        "version.h"
  36 #include        "memory.h"
  37
  38 #include        "cart.h"
  39 #include        "nsf.h"
  40 #include        "fds.h"
  41 #include        "ines.h"
  42 #include        "unif.h"
  43 #include        "vsuni.h"
  44 #include        "cheat.h"
  45
  46 #include        "state.h"
  47 #include        "video.h"
  48 #include        "input.h"
  49 #include        "file.h"
  50 #include        "crc32.h"
  51 #include        "ppu.h"
  52 #include        "ppu098.h"
  53
  54 #include        "palette.h"
  55 #include        "movie.h"
  56
  57 #include        "dprintf.h"
  58
  59 #ifdef __arm__
  60 #include        "drivers/arm/asmutils.h"
  61 #endif
  62
  63 #define Pal     (PALRAM)
  64
  65
  66 static void (*RefreshLine)(uint8 *P, uint32 vofs) = NULL;
  67 static void PRefreshLine(void);
  68
  69 static void ResetPPU(void);
  70 static void PowerPPU(void);
  71
  72 uint64 timestampbase=0;
  73
  74 int ppudead=1;
  75 int kook=0;
  76
  77 int MMC5Hack;
  78 uint32 MMC5HackVROMMask;
  79 uint8 *MMC5HackExNTARAMPtr;
  80 uint8 *MMC5HackVROMPTR;
  81 uint8 MMC5HackCHRMode=0;
  82 uint8 MMC5HackSPMode;
  83 uint8 MMC5HackSPScroll;
  84 uint8 MMC5HackSPPage;
  85
  86 uint8 *MMC5SPRVPage[8];
  87 uint8 *MMC5BGVPage[8];
  88
  89
  90 uint8 VRAMBuffer,PPUGenLatch;
  91
  92 uint8 *vnapage[4];
  93 uint8 PPUNTARAM;
  94 uint8 PPUCHRRAM;
  95
  96 /* Color deemphasis emulation.  Joy... */
  97 static uint8 deemp=0;
  98 static int deempcnt[8];
  99
 100 FCEUGI FCEUGameInfo;
 101 FCEUGI *GameInfo = &FCEUGameInfo;
 102 void (*GameInterface)(int h, void *param);
 103
 104 void FP_FASTAPASS(1) (*PPU_hook)(uint32 A);
 105
 106 void (*GameStateRestore)(int version);
 107 void (*GameHBIRQHook)(void), (*GameHBIRQHook2)(void);
 108
 109 readfunc ARead[0x10000];
 110 writefunc BWrite[0x10000];
 111 static readfunc *AReadG;
 112 static writefunc *BWriteG;
 113 static int RWWrap=0;
 114
 115 #ifdef ASM_6502
 116 #ifdef DEBUG_ASM_6502
 117 extern uint8  nes_internal_ram[0x800];
 118 #endif
 119
 120 void asmcpu_unpack(void)
 121 {
 122         nes_registers[0] = X.A << 24;
 123         nes_registers[1] = X.X;
 124         nes_registers[2] = X.Y;
 125         pc_base = 0;
 126         nes_registers[3] = X.PC;
 127         X6502_Rebase_a();
 128         nes_registers[4] = X.S << 24;
 129         nes_registers[4]|= X.IRQlow << 8;
 130         if (MapIRQHook)
 131                 nes_registers[4] |= 1<<16; // MapIRQHook set bit
 132         nes_registers[7] = (uint32)X.count << 16;
 133
 134         // NVUB DIZC
 135         nes_registers[4]|= X.P & 0x5d;
 136         nes_registers[5] = X.P << 24; // N
 137         if (!(X.P&0x02)) nes_registers[5] |= 1; // Z
 138
 139 #ifdef DEBUG_ASM_6502
 140         memcpy(nes_internal_ram, RAM, 0x800);
 141 #endif
 142 }
 143
 144 void asmcpu_pack(void)
 145 {
 146         X.A = nes_registers[0] >> 24;
 147         X.X = nes_registers[1];
 148         X.Y = nes_registers[2];
 149         X.PC= nes_registers[3] - pc_base;
 150         X.S = nes_registers[4] >> 24;
 151         X.IRQlow = nes_registers[4] >> 8;
 152         X.count = (int32) nes_registers[7] >> 16;
 153
 154         // NVUB DIZC
 155         X.P = nes_registers[4] & 0x5d;
 156         if (  nes_registers[5]&0x80000000)  X.P |= 0x80; // N
 157         if (!(nes_registers[5]&0x000000ff)) X.P |= 0x02; // Z
 158 }
 159 #endif
 160
 161 DECLFW(BNull)
 162 {
 163
 164 }
 165
 166 DECLFR(ANull)
 167 {
 168  //printf("open [%04x] %02x @ %04x (%04x)\n", A, X.DB, X.PC, X.PC&0x7ff);
 169  return(X.DB);
 170 }
 171
 172 int AllocGenieRW(void)
 173 {
 174  if(!(AReadG=FCEU_malloc(0x8000*sizeof(readfunc))))
 175   return 0;
 176  if(!(BWriteG=FCEU_malloc(0x8000*sizeof(writefunc))))
 177   return 0;
 178  RWWrap=1;
 179  return 1;
 180 }
 181
 182 void FlushGenieRW(void)
 183 {
 184  int32 x;
 185
 186  if(RWWrap)
 187  {
 188   for(x=0;x<0x8000;x++)
 189   {
 190    ARead[x+0x8000]=AReadG[x];
 191    BWrite[x+0x8000]=BWriteG[x];
 192   }
 193 #ifdef ASM_6502
 194   GenieSetPages(1);
 195 #endif
 196   free(AReadG);
 197   free(BWriteG);
 198   AReadG=0;
 199   BWriteG=0;
 200   RWWrap=0;
 201  }
 202 }
 203
 204 readfunc FASTAPASS(1) GetReadHandler(int32 a)
 205 {
 206   if(a>=0x8000 && RWWrap)
 207    return AReadG[a-0x8000];
 208   else
 209    return ARead[a];
 210 }
 211
 212 void FASTAPASS(3) SetReadHandler(int32 start, int32 end, readfunc func)
 213 {
 214   int32 x;
 215
 216   if(!func)
 217    func=ANull;
 218
 219   if(RWWrap)
 220    for(x=end;x>=start;x--)
 221    {
 222     if(x>=0x8000)
 223      AReadG[x-0x8000]=func;
 224     else
 225      ARead[x]=func;
 226    }
 227   else
 228
 229    for(x=end;x>=start;x--)
 230     ARead[x]=func;
 231 }
 232
 233 writefunc FASTAPASS(1) GetWriteHandler(int32 a)
 234 {
 235   if(RWWrap && a>=0x8000)
 236    return BWriteG[a-0x8000];
 237   else
 238    return BWrite[a];
 239 }
 240
 241 void FASTAPASS(3) SetWriteHandler(int32 start, int32 end, writefunc func)
 242 {
 243   int32 x;
 244
 245   if(!func)
 246    func=BNull;
 247
 248   if(RWWrap)
 249    for(x=end;x>=start;x--)
 250    {
 251     if(x>=0x8000)
 252      BWriteG[x-0x8000]=func;
 253     else
 254      BWrite[x]=func;
 255    }
 256   else
 257    for(x=end;x>=start;x--)
 258     BWrite[x]=func;
 259 }
 260
 261 uint8 vtoggle=0;
 262 uint8 XOffset=0;
 263
 264 uint32 TempAddr,RefreshAddr;
 265
 266
 267 /* scanline is equal to the current visible scanline we're on. */
 268
 269 int scanline;
 270
 271 uint8 GameMemBlock[131072] __attribute__ ((aligned (4)));
 272 uint8 NTARAM[0x800] __attribute__ ((aligned (4)));
 273 uint8 PALRAM[0x20] __attribute__ ((aligned (4)));
 274 #if !defined(ASM_6502) || defined(DEBUG_ASM_6502)
 275 uint8 RAM[0x800] __attribute__ ((aligned (4)));
 276 #endif
 277
 278 uint8 PPU[4];
 279 uint8 PPUSPL;
 280
 281 uint8 PAL=0;
 282
 283
 284 #define MMC5BGVRAMADR(V)      &MMC5BGVPage[(V)>>10][(V)]
 285 #define VRAMADR(V)      &VPage[(V)>>10][(V)]
 286
 287 static int linestartts;
 288 static int tofix=0;
 289
 290 static uint8 *Plinef;
 291
 292 extern uint8 sprlinebuf[256+8];
 293 extern int32 sphitx;
 294 extern uint8 sphitdata;
 295
 296 extern int spork;       /* spork the world.  Any sprites on this line?
 297                            Then this will be set to 1.  Needed for zapper
 298                            emulation and *gasp* sprite emulation.
 299                         */
 300
 301 static void ResetRL(uint8 *target)
 302 {
 303  if(InputScanlineHook)
 304   InputScanlineHook(0,0,0,0);
 305  Plinef=target;
 306  linestartts=timestamp*48+X6502_GetCycleCount();
 307  tofix=1;
 308 }
 309
 310 static INLINE void Fixit1(void);
 311
 312 /* faking FCEUPPU_LineUpdate() from later versions of the emu */
 313 static void FakedLineUpdate(void)
 314 {
 315  #define TOFIXNUM (272-0x4)
 316  int lastpixel;
 317
 318  if (scanline >= 240) return;
 319
 320  if (tofix || sphitx != 0x100)
 321  {
 322   lastpixel = (timestamp*48-linestartts)>>4;
 323   if (PAL) lastpixel += lastpixel>>4;
 324   //printf("lastpixel: %i\n", lastpixel);
 325  }
 326
 327  if (tofix && lastpixel>=TOFIXNUM)
 328  {
 329   Fixit1();
 330   tofix=0;
 331  }
 332
 333  // CheckSpriteHit()
 334  if(sphitx!=0x100)
 335  {
 336   int l=lastpixel-16;
 337   int x;
 338
 339   for(x=sphitx;x<(sphitx+8) && x<l;x++)
 340   {
 341    if((sphitdata&(0x80>>(x-sphitx))) && !(Plinef[x]&64))
 342    {
 343     PPU_status|=0x40;
 344     sphitx=0x100;
 345     break;
 346    }
 347   }
 348  }
 349 }
 350
 351
 352 static DECLFW(BRAML)
 353 {
 354         RAM[A]=V;
 355 }
 356
 357 static DECLFW(BRAMH)
 358 {
 359         RAM[A&0x7FF]=V;
 360 }
 361
 362 static DECLFR(ARAML)
 363 {
 364         return RAM[A];
 365 }
 366
 367 static DECLFR(ARAMH)
 368 {
 369         return RAM[A&0x7FF];
 370 }
 371
 372
 373 static DECLFR(A2002)
 374 {
 375         /* merged */
 376                         uint8 ret;
 377
 378                         FakedLineUpdate();
 379                         ret = PPU_status;
 380                         ret|=PPUGenLatch&0x1F;
 381                         vtoggle=0;
 382                         PPU_status&=0x7F;
 383                          PPUGenLatch=ret;
 384                         //dprintf("r [2002] %02x",ret);
 385                         return ret;
 386 }
 387
 388 static DECLFR(A200x)
 389 {
 390         /* merged */
 391                         FakedLineUpdate();
 392                         return PPUGenLatch;
 393 }
 394
 395 static DECLFR(A2007)
 396 {
 397         /* merged */
 398                         uint8 ret;
 399                         uint32 tmp=RefreshAddr&0x3FFF;
 400
 401                         FakedLineUpdate();
 402
 403                         ret=VRAMBuffer;
 404
 405                         if(PPU_hook) PPU_hook(tmp);
 406                         PPUGenLatch=VRAMBuffer;
 407                         if(tmp<0x2000)
 408                         {
 409                          VRAMBuffer=VPage[tmp>>10][tmp];
 410                         }
 411                         else
 412                         {
 413                          VRAMBuffer=vnapage[(tmp>>10)&0x3][tmp&0x3FF];
 414                         }
 415
 416                         if (INC32) RefreshAddr+=32;
 417                         else RefreshAddr++;
 418                         if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
 419                         dprintf("r [2007] %02x",ret);
 420                         return ret;
 421 }
 422
 423 static DECLFW(B2000)
 424 {
 425         /* NMI2? */
 426                 FakedLineUpdate();
 427                 PPUGenLatch=V;
 428                 PPU[0]=V;
 429                 TempAddr&=0xF3FF;
 430                 TempAddr|=(V&3)<<10;
 431 }
 432
 433 static DECLFW(B2001)
 434 {
 435         /* merged */
 436                   FakedLineUpdate();
 437                   PPUGenLatch=V;
 438                   PPU[1]=V;
 439                   if(V&0xE0)
 440                    deemp=V>>5;
 441                   //printf("$%04x:$%02x, %d\n",X.PC,V,scanline);
 442 }
 443
 444 static DECLFW(B2002)
 445 {
 446         /* merged */
 447                  PPUGenLatch=V;
 448 }
 449
 450 static DECLFW(B2003)
 451 {
 452         /* merged */
 453                 PPUGenLatch=V;
 454                 PPU[3]=V;
 455                 PPUSPL=V&0x7;
 456 }
 457
 458 static DECLFW(B2004)
 459 {
 460         /* merged */
 461                 PPUGenLatch=V;
 462                 if(PPUSPL>=8)
 463                 {
 464                  if(PPU[3]>=8)
 465                   SPRAM[PPU[3]]=V;
 466                 }
 467                 else
 468                 {
 469                  //printf("$%02x:$%02x\n",PPUSPL,V);
 470                  SPRAM[PPUSPL]=V;
 471                 }
 472                 PPU[3]++;
 473                 PPUSPL++;
 474
 475 }
 476
 477 static DECLFW(B2005)
 478 {
 479         /* merged */
 480                 uint32 tmp=TempAddr;
 481                 FakedLineUpdate();
 482                 PPUGenLatch=V;
 483                 if (!vtoggle)
 484                 {
 485                  tmp&=0xFFE0;
 486                  tmp|=V>>3;
 487                  XOffset=V&7;
 488                 }
 489                 else
 490                 {
 491                  tmp&=0x8C1F;
 492                  tmp|=((V&~0x7)<<2);
 493                  tmp|=(V&7)<<12;
 494                 }
 495
 496                 TempAddr=tmp;
 497                 vtoggle^=1;
 498 }
 499
 500 static DECLFW(B2006)
 501 {
 502         /* merged */
 503                        FakedLineUpdate();
 504
 505                        PPUGenLatch=V;
 506                        if(!vtoggle)
 507                        {
 508                         TempAddr&=0x00FF;
 509                         TempAddr|=(V&0x3f)<<8;
 510                        }
 511                        else
 512                        {
 513                         TempAddr&=0xFF00;
 514                         TempAddr|=V;
 515
 516                         RefreshAddr=TempAddr;
 517                         if(PPU_hook)
 518                          PPU_hook(RefreshAddr);
 519                        }
 520                       vtoggle^=1;
 521 }
 522
 523 static DECLFW(B2007)
 524 {
 525         /* merged */
 526                         uint32 tmp=RefreshAddr&0x3FFF;
 527                         PPUGenLatch=V;
 528                         if(tmp>=0x3F00)
 529                         {
 530                          // hmmm....
 531                          if(!(tmp&0xf))
 532                           PALRAM[0x00]=PALRAM[0x04]=PALRAM[0x08]=PALRAM[0x0C]=V&0x3f;
 533                          else if(tmp&3) PALRAM[(tmp&0x1f)]=V&0x3f;
 534                         }
 535                         else if(tmp<0x2000)
 536                         {
 537                           if(PPUCHRRAM&(1<<(tmp>>10)))
 538                             VPage[tmp>>10][tmp]=V;
 539                         }
 540                         else
 541                         {
 542                          if(PPUNTARAM&(1<<((tmp&0xF00)>>10)))
 543                           vnapage[((tmp&0xF00)>>10)][tmp&0x3FF]=V;
 544                         }
 545                         if (INC32) RefreshAddr+=32;
 546                         else RefreshAddr++;
 547                         if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
 548 }
 549
 550 static DECLFW(B4014)
 551 {
 552         uint32 t=V<<8;
 553         int x;
 554
 555         for(x=0;x<256;x++)
 556          B2004(0x2004,X.DB=ARead[t+x](t+x));
 557         X6502_AddCycles(512);
 558 }
 559
 560 void BGRender(uint8 *target)
 561 {
 562         uint32 tem, vofs;
 563         vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
 564
 565         Pal[0]|=64;
 566         Pal[4]|=64;
 567         Pal[8]|=64;
 568         Pal[0xC]|=64;
 569         RefreshLine(target-XOffset, vofs);
 570         Pal[0]&=63;
 571         Pal[4]&=63;
 572         Pal[8]&=63;
 573         Pal[0xC]&=63;
 574
 575         if(!(PPU[1]&2))
 576         {
 577          tem=Pal[0]|0x40;
 578          tem|=tem<<8;
 579          tem|=tem<<16;
 580          *(uint32 *)target=*(uint32 *)(target+4)=tem;
 581         }
 582 }
 583
 584 #ifdef FRAMESKIP
 585 int FSkip=0;
 586 void FCEUI_FrameSkip(int x)
 587 {
 588  FSkip=x;
 589 }
 590 #endif
 591
 592 /*      This is called at the beginning of each visible scanline */
 593 static void LineUpdate(uint8 *target)
 594 {
 595         uint32 tem;
 596         int y;
 597
 598         /* PRefreshLine() will not get called on skipped frames.  This
 599          * could cause a problem, but the solution would be rather complex,
 600          * due to the current sprite 0 hit code.
 601          */
 602         if(FSkip)
 603         {
 604          y=(int)SPRAM[0] + 1;
 605          if(scanline==y && SpriteON) PPU_status|=0x40; // hack
 606          return;
 607         }
 608
 609         if(!ScreenON)
 610         {
 611           tem=Pal[0]|0x40;
 612           tem|=tem << 8;
 613           tem|=tem << 16;
 614           FCEU_dwmemset(target,tem,256);
 615         }
 616         else if(scanline < FSettings.FirstSLine || scanline > FSettings.LastSLine)
 617         {
 618            if(PPU_hook)
 619             PRefreshLine();
 620            y=(int)SPRAM[0] + 1;
 621            if(scanline==y && SpriteON) PPU_status|=0x40;
 622         }
 623         else
 624         {
 625          BGRender(target);
 626         }
 627
 628         if(InputScanlineHook)
 629          InputScanlineHook(target,spork?sprlinebuf:0,linestartts,256);
 630 }
 631
 632
 633 static void LineUpdateEnd(uint8 *target)
 634 {
 635 #ifdef __arm__
 636  if(ScreenON || SpriteON)  // Yes, very el-cheapo.
 637  {
 638   if(PPU[1]&0x01)
 639    block_and(target, 256, 0x30);
 640  }
 641  if((PPU[1]>>5)==0x7)
 642   block_or(target, 256, 0xc0);
 643  else if(PPU[1]&0xE0)
 644   block_or(target, 256, 0x40);
 645  else
 646   block_andor(target, 256, 0x3f, 0x80);
 647 #else
 648  int x;
 649
 650  if(ScreenON || SpriteON)  // Yes, very el-cheapo.
 651  {
 652   if(PPU[1]&0x01)
 653   {
 654    for(x=63;x>=0;x--)
 655    *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])&0x30303030;
 656   }
 657  }
 658  if((PPU[1]>>5)==0x7)
 659  {
 660   for(x=63;x>=0;x--)
 661    *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0xc0c0c0c0;
 662  }
 663  else if(PPU[1]&0xE0)
 664   for(x=63;x>=0;x--)
 665    *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])|0x40404040;
 666  else
 667   for(x=63;x>=0;x--)
 668    *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0x80808080;
 669 #endif
 670
 671  // black borders
 672  ((uint32 *)target)[-2]=((uint32 *)target)[-1]=0;
 673  ((uint32 *)target)[64]=((uint32 *)target)[65]=0;
 674 }
 675
 676 #define PAL(c)  ((c)+cc)
 677
 678
 679 static void PRefreshLine(void)
 680 {
 681          uint32 vofs;
 682          int X1;
 683          vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
 684          void (*PPU_hook_)(uint32 A) = PPU_hook;
 685
 686
 687          for(X1=33;X1;X1--)
 688          {
 689                 uint32 zz2;
 690                 uint32 vadr;
 691
 692                 zz2=(RefreshAddr>>10)&3;
 693                 PPU_hook_(0x2000|(RefreshAddr&0xFFF));
 694
 695                 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
 696
 697                 PPU_hook_(vadr);
 698
 699                 if((RefreshAddr&0x1f)==0x1f)
 700                  RefreshAddr^=0x41F;
 701                 else
 702                  RefreshAddr++;
 703          }
 704 }
 705
 706 /* This high-level graphics MMC5 emulation code was written
 707    for MMC5 carts in "CL" mode.  It's probably not totally
 708    correct for carts in "SL" mode.
 709    */
 710 static void RefreshLine_MMC5Hack1(uint8 *P, uint32 vofs)
 711 {
 712           int8 tochange, X1;
 713
 714           tochange=MMC5HackSPMode&0x1F;
 715
 716           for(X1=33;X1;X1--,P+=8)
 717           {
 718                 uint8 *C;
 719                 uint8 cc,zz,zz2;
 720                 uint32 vadr;
 721
 722                 if((tochange<=0 && MMC5HackSPMode&0x40) ||
 723                    (tochange>0 && !(MMC5HackSPMode&0x40)))
 724                 {
 725                  uint8 xs,ys;
 726
 727                  xs=33-X1;
 728                  ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
 729                  if(ys>=0x1E) ys-=0x1E;
 730                  vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
 731
 732                  C = MMC5HackVROMPTR+vadr;
 733                  C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
 734
 735                  cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
 736                  cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
 737                 }
 738                 else
 739                 {
 740                  zz=RefreshAddr&0x1F;
 741                  zz2=(RefreshAddr>>10)&3;
 742                  vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
 743                  C = MMC5BGVRAMADR(vadr);
 744                  cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
 745                  cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
 746                 }
 747                 #include "fceline.h"
 748
 749                 if((RefreshAddr&0x1f)==0x1f)
 750                  RefreshAddr^=0x41F;
 751                 else
 752                  RefreshAddr++;
 753                 tochange--;
 754           }
 755 }
 756
 757 static void RefreshLine_MMC5Hack2(uint8 *P, uint32 vofs)
 758 {
 759           int8 tochange, X1;
 760
 761           tochange=MMC5HackSPMode&0x1F;
 762
 763           for(X1=33;X1;X1--,P+=8)
 764           {
 765                 uint8 *C;
 766                 uint8 cc;
 767                 uint8 zz2;
 768                 uint32 vadr;
 769
 770                 if((tochange<=0 && MMC5HackSPMode&0x40) ||
 771                    (tochange>0 && !(MMC5HackSPMode&0x40)))
 772                 {
 773                  uint8 xs,ys;
 774
 775                  xs=33-X1;
 776                  ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
 777                  if(ys>=0x1E) ys-=0x1E;
 778                  vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
 779
 780                  C = MMC5HackVROMPTR+vadr;
 781                  C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
 782
 783                  cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
 784                  cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
 785                 }
 786                 else
 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                 tochange--;
 802           }
 803 }
 804
 805 static void RefreshLine_MMC5Hack3(uint8 *P, uint32 vofs)
 806 {
 807           int8 X1;
 808
 809           for(X1=33;X1;X1--,P+=8)
 810           {
 811                 uint8 *C;
 812                 uint8 cc;
 813                 uint8 zz2;
 814                 uint32 vadr;
 815
 816                 C=MMC5HackVROMPTR;
 817                 zz2=(RefreshAddr>>10)&3;
 818                 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
 819                 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
 820                         MMC5HackVROMMask) << 12) + (vadr & 0xfff);
 821                 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
 822                 cc = vadr;
 823
 824                 #include "fceline.h"
 825                 if((RefreshAddr&0x1f)==0x1f)
 826                  RefreshAddr^=0x41F;
 827                 else
 828                  RefreshAddr++;
 829           }
 830 }
 831
 832 static void RefreshLine_MMC5Hack4(uint8 *P, uint32 vofs)
 833 {
 834           int8 X1;
 835
 836           for(X1=33;X1;X1--,P+=8)
 837           {
 838                 uint8 *C;
 839                 uint8 cc,zz,zz2;
 840                 uint32 vadr;
 841
 842                 zz=RefreshAddr&0x1F;
 843                 zz2=(RefreshAddr>>10)&3;
 844                 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
 845                 C = MMC5BGVRAMADR(vadr);
 846                 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
 847                 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
 848
 849                 #include "fceline.h"
 850
 851                 if((RefreshAddr&0x1f)==0x1f)
 852                  RefreshAddr^=0x41F;
 853                 else
 854                  RefreshAddr++;
 855           }
 856 }
 857
 858 static void RefreshLine_PPU_hook(uint8 *P, uint32 vofs)
 859 {
 860          int8 X1;
 861          void (*PPU_hook_)(uint32 A) = PPU_hook;
 862          uint32 rfraddr = RefreshAddr;
 863          uint8 *page = vnapage[(rfraddr>>10)&3];
 864
 865          for(X1=33;X1;X1--,P+=8)
 866          {
 867                 uint8 *C;
 868                 uint8 cc,zz;
 869                 uint32 vadr;
 870
 871                 zz=rfraddr&0x1F;
 872                 PPU_hook_(0x2000|(rfraddr&0xFFF));
 873                 cc=page[0x3c0+(zz>>2)+((rfraddr&0x380)>>4)];
 874                 cc=((cc >> ((zz&2) + ((rfraddr&0x40)>>4))) &3) <<2;
 875                 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
 876                 C = VRAMADR(vadr);
 877
 878                 #include "fceline.h"
 879
 880                 PPU_hook_(vadr);
 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 RefreshLine_normal(uint8 *P, uint32 vofs) // vofs is 0x107 max
 892 {
 893          int8 X1;
 894          uint32 rfraddr = RefreshAddr;
 895          uint8 *page = vnapage[(rfraddr>>10)&3];
 896          uint32 cc2=0;
 897
 898          if ((rfraddr&0xc)!=0)
 899           cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
 900
 901          for (X1=33;X1;X1--,P+=8)
 902          {
 903                 uint8 cc,*C;
 904                 uint32 vadr;
 905
 906                 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
 907                 C = VRAMADR(vadr);
 908                 if ((rfraddr&0xc)==0)
 909                  cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
 910                 cc=((cc2 >> ((rfraddr&2) + ((rfraddr&0x40)>>4) + ((rfraddr&0xc)<<1))) & 3) << 2;
 911
 912                 #include "fceline.h"
 913
 914                 if((rfraddr&0x1f)==0x1f) {
 915                  rfraddr^=0x41F;
 916                  page = vnapage[(rfraddr>>10)&3];
 917                 } else
 918                  rfraddr++;
 919          }
 920          RefreshAddr = rfraddr;
 921 }
 922
 923 static void SetRefreshLine(void)
 924 {
 925         if(MMC5Hack && geniestage!=1)
 926         {
 927          if(MMC5HackCHRMode==0 && (MMC5HackSPMode&0x80))
 928          {
 929                  if (RefreshLine != RefreshLine_MMC5Hack1) printf("set refr RefreshLine_MMC5Hack1\n");
 930                  RefreshLine = RefreshLine_MMC5Hack1;
 931          }
 932          else if(MMC5HackCHRMode==1 && (MMC5HackSPMode&0x80))
 933          {
 934                 if (RefreshLine != RefreshLine_MMC5Hack2) printf("set refr RefreshLine_MMC5Hack2\n");
 935                  RefreshLine = RefreshLine_MMC5Hack2;
 936          }
 937          else if(MMC5HackCHRMode==1)
 938          {
 939                 if (RefreshLine != RefreshLine_MMC5Hack3) printf("set refr RefreshLine_MMC5Hack3\n");
 940                  RefreshLine = RefreshLine_MMC5Hack3;
 941          }
 942          else
 943          {
 944                 if (RefreshLine != RefreshLine_MMC5Hack4) printf("set refr RefreshLine_MMC5Hack4\n");
 945                  RefreshLine = RefreshLine_MMC5Hack4;
 946          }
 947         }       // End if(MMC5Hack)
 948         else if(PPU_hook)
 949         {
 950                 if (RefreshLine != RefreshLine_PPU_hook) printf("set refr RefreshLine_PPU_hook\n");
 951                 RefreshLine = RefreshLine_PPU_hook;
 952         }
 953         else
 954         {
 955                 if (RefreshLine != RefreshLine_normal) printf("set refr RefreshLine_normal\n");
 956                 RefreshLine = RefreshLine_normal;
 957         }
 958 }
 959
 960 static INLINE
 961 void Fixit2(void)
 962 {
 963    if(ScreenON || SpriteON)
 964    {
 965     uint32 rad=RefreshAddr;
 966     rad&=0xFBE0;
 967     rad|=TempAddr&0x041f;
 968     RefreshAddr=rad;
 969     //PPU_hook(RefreshAddr,-1);
 970    }
 971 }
 972
 973 static INLINE
 974 void Fixit1(void)
 975 {
 976    if(ScreenON || SpriteON)
 977    {
 978     uint32 rad=RefreshAddr;
 979
 980     if((rad&0x7000)==0x7000)
 981     {
 982      rad^=0x7000;
 983      if((rad&0x3E0)==0x3A0)
 984      {
 985       rad^=0x3A0;
 986       rad^=0x800;
 987      }
 988      else
 989      {
 990       if((rad&0x3E0)==0x3e0)
 991        rad^=0x3e0;
 992       else rad+=0x20;
 993      }
 994     }
 995     else
 996      rad+=0x1000;
 997     RefreshAddr=rad;
 998     //PPU_hook(RefreshAddr,-1);
 999    }
1000 }
1001
1002
1003 // ============================//
1004 // end of new code
1005 // ===========================//
1006
1007 void ResetMapping(void)
1008 {
1009         int x;
1010
1011         SetReadHandler(0x0000,0xFFFF,ANull);
1012         SetWriteHandler(0x0000,0xFFFF,BNull);
1013
1014         SetReadHandler(0,0x7FF,ARAML);
1015         SetWriteHandler(0,0x7FF,BRAML);
1016
1017         SetReadHandler(0x800,0x1FFF,ARAMH);  /* Part of a little */
1018         SetWriteHandler(0x800,0x1FFF,BRAMH); /* hack for a small speed boost. */
1019
1020         for(x=0x2000;x<0x4000;x+=8)
1021         {
1022          ARead[x]=A200x;
1023          BWrite[x]=B2000;
1024          ARead[x+1]=A200x;
1025          BWrite[x+1]=B2001;
1026          ARead[x+2]=A2002;
1027          BWrite[x+2]=B2002;
1028          ARead[x+3]=A200x;
1029          BWrite[x+3]=B2003;
1030          ARead[x+4]=A200x;
1031          BWrite[x+4]=B2004;
1032          ARead[x+5]=A200x;
1033          BWrite[x+5]=B2005;
1034          ARead[x+6]=A200x;
1035          BWrite[x+6]=B2006;
1036          ARead[x+7]=A2007;
1037          BWrite[x+7]=B2007;
1038         }
1039
1040         BWrite[0x4014]=B4014;
1041         SetNESSoundMap();
1042         InitializeInput();
1043 }
1044
1045 int GameLoaded=0;
1046 void CloseGame(void)
1047 {
1048  FCEUI_StopMovie();
1049  if(GameLoaded)
1050  {
1051   if(FCEUGameInfo.type!=GIT_NSF)
1052    FCEU_FlushGameCheats(0,0);
1053   #ifdef NETWORK
1054   if(FSettings.NetworkPlay) KillNetplay();
1055   #endif
1056   GameInterface(GI_CLOSE, 0);
1057   CloseGenie();
1058   GameLoaded=0;
1059  }
1060 }
1061
1062 void ResetGameLoaded(void)
1063 {
1064         if(GameLoaded) CloseGame();
1065         GameStateRestore=0;
1066         PPU_hook=0;
1067         GameHBIRQHook=GameHBIRQHook2=0;
1068         GameExpSound.Fill=0;
1069         GameExpSound.RChange=0;
1070         if(GameExpSound.Kill)
1071          GameExpSound.Kill();
1072         GameExpSound.Kill=0;
1073         MapIRQHook=0;
1074         MMC5Hack=0;
1075         PAL&=1;
1076         pale=0;
1077
1078         FCEUGameInfo.name=0;
1079         FCEUGameInfo.type=GIT_CART;
1080         FCEUGameInfo.vidsys=GIV_USER;
1081         FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=-1;
1082         FCEUGameInfo.inputfc=-1;
1083
1084         FCEUGameInfo.soundchan=0;
1085         FCEUGameInfo.soundrate=0;
1086         FCEUGameInfo.cspecial=0;
1087 }
1088
1089 char lastLoadedGameName [2048];
1090 int LoadGameLastError = 0;
1091 int UNIFLoad(const char *name, int fp);
1092 int iNESLoad(const char *name, int fp, int OverwriteVidMode);
1093 int FDSLoad(const char *name, int fp);
1094 int NSFLoad(int fp);
1095
1096 FCEUGI *FCEUI_LoadGame(char *name)
1097 {
1098         char name2[512];
1099         int have_movie = 0, have_ips = 0;
1100         int fp;
1101
1102         //Exit=1;
1103         LoadGameLastError = 0;
1104         ResetGameLoaded();
1105
1106         strncpy(name2, name, sizeof(name2));
1107         name2[sizeof(name2)-1] = 0;
1108
1109         fp=FCEU_fopen(name2,"rb");
1110         if(!fp)
1111         {
1112          FCEU_PrintError("Error opening \"%s\"!",name);
1113          LoadGameLastError = 1;
1114          return 0;
1115         }
1116
1117         {
1118          char *p = name2 + strlen(name2) - 4;
1119          if (strcasecmp(p, ".fcm") == 0) printf("movie detected\n"), have_movie = 1;
1120          if (strcasecmp(p, ".ips") == 0) printf("ips detected\n"), have_ips = 1;
1121          if (have_movie || have_ips)
1122          {
1123           // movie detected
1124           FCEU_fclose(fp);
1125           *p = 0;
1126           fp=FCEU_fopen(name2,"rb");
1127           if (!fp && p - name2 > 2)
1128           {
1129            for (p--; p > name2 && *p != '.'; p--);
1130            *p = 0;
1131            fp=FCEU_fopen(name2,"rb");
1132           }
1133           if (!fp) {
1134            printf("no ROM for ips/movie\n");
1135            LoadGameLastError = 2;
1136            return 0;
1137           }
1138          }
1139         }
1140
1141         // do IPS patch
1142         if (have_ips)
1143         {
1144          FCEU_fclose(fp);
1145          FILE *ips = fopen(name, "rb");
1146          if (!ips) return 0;
1147          fp=FCEU_fopen_forcemem(name2);
1148          if (!fp) { fclose(ips); return 0; }
1149          ApplyIPS(ips, fp); // closes ips
1150         }
1151
1152         GetFileBase(name2);
1153         if(iNESLoad(name2,fp,1))
1154          goto endlseq;
1155         if(NSFLoad(fp))
1156          goto endlseq;
1157         if(FDSLoad(name2,fp))
1158          goto endlseq;
1159         if(UNIFLoad(name2,fp))
1160          goto endlseq;
1161
1162         FCEU_PrintError("An error occurred while loading the file.");
1163         FCEU_fclose(fp);
1164         // format handlers may set LoadGameLastError themselves.
1165         if (LoadGameLastError == 0) LoadGameLastError = 3;
1166         return 0;
1167
1168         endlseq:
1169         FCEU_fclose(fp);
1170         GameLoaded=1;
1171
1172         FCEU_ResetVidSys();
1173         if(FCEUGameInfo.type!=GIT_NSF)
1174          if(FSettings.GameGenie)
1175           OpenGenie();
1176
1177         PowerNES();
1178         #ifdef NETWORK
1179         if(FSettings.NetworkPlay) InitNetplay();
1180         #endif
1181         SaveStateRefresh();
1182         if(FCEUGameInfo.type!=GIT_NSF)
1183         {
1184          FCEU_LoadGamePalette();
1185          FCEU_LoadGameCheats(0);
1186         }
1187
1188         FCEU_ResetPalette();
1189         Exit=0;
1190
1191         if (have_movie)
1192                 FCEUI_LoadMovie(name, 1);
1193
1194         strcpy(lastLoadedGameName, name2);
1195
1196         return(&FCEUGameInfo);
1197 }
1198
1199
1200 void FCEU_ResetVidSys(void)
1201 {
1202  int w;
1203
1204  if(FCEUGameInfo.vidsys==GIV_NTSC)
1205   w=0;
1206  else if(FCEUGameInfo.vidsys==GIV_PAL)
1207   w=1;
1208  else
1209   w=FSettings.PAL;
1210
1211  if(w)
1212  {
1213   PAL=1;
1214   FSettings.FirstSLine=FSettings.UsrFirstSLine[1];
1215   FSettings.LastSLine=FSettings.UsrLastSLine[1];
1216  }
1217  else
1218  {
1219   PAL=0;
1220   FSettings.FirstSLine=FSettings.UsrFirstSLine[0];
1221   FSettings.LastSLine=FSettings.UsrLastSLine[0];
1222  }
1223  printf("ResetVidSys: PAL = %i\n", PAL);
1224  SetSoundVariables();
1225 }
1226
1227 int FCEUI_Initialize(void)
1228 {
1229         if(!InitVirtualVideo())
1230          return 0;
1231         memset(&FSettings,0,sizeof(FSettings));
1232         FSettings.UsrFirstSLine[0]=8;
1233         FSettings.UsrFirstSLine[1]=0;
1234         FSettings.UsrLastSLine[0]=FSettings.UsrLastSLine[1]=239;
1235         FSettings.SoundVolume=100;
1236
1237         FCEUI_Initialize098();
1238         FCEUI_SetEmuMode(0);
1239
1240         X6502_Init();
1241
1242         return 1;
1243 }
1244
1245 void FCEUI_Kill(void)
1246 {
1247  FCEU_KillGenie();
1248 }
1249
1250 static void EmLoop(void);
1251
1252 int use098code = 0;
1253 void (*ResetNES)(void) = 0;
1254 void (*FCEUI_Emulate)(void) = 0;
1255
1256 void FCEUI_SetEmuMode(int is_new)
1257 {
1258    use098code = is_new;
1259    if (is_new)
1260    {
1261     ResetNES=ResetNES098;
1262     FCEUI_Emulate=FCEUI_Emulate098;
1263    }
1264    else
1265    {
1266     ResetNES=ResetNES081;
1267     FCEUI_Emulate=EmLoop;
1268    }
1269 }
1270
1271 void MMC5_hb(int);     /* Ugh ugh ugh. */
1272 static void DoLine(void)
1273 {
1274    uint8 *target=XBuf+scanline*320+32;
1275
1276    LineUpdate(target);
1277
1278    if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
1279
1280    X6502_Run(256);
1281
1282    // check: Battletoads & Double Dragon, Addams Family
1283    // sky glitches in SMB1 if done wrong
1284    FakedLineUpdate();
1285
1286 #ifdef FRAMESKIP
1287    if(!FSkip)
1288 #endif
1289    if(scanline>=FSettings.FirstSLine && scanline<=FSettings.LastSLine)
1290    {
1291     if(SpriteON && spork)
1292      CopySprites(target);
1293
1294     LineUpdateEnd(target);
1295    }
1296    sphitx=0x100;
1297
1298    if(ScreenON || SpriteON)
1299     FetchSpriteData();
1300
1301    // DoHBlank();
1302    if(GameHBIRQHook && (ScreenON || SpriteON) && ((PPU[0]&0x38)!=0x18))
1303    {
1304     X6502_Run(6);
1305     Fixit2();
1306     X6502_Run(4);
1307     GameHBIRQHook();
1308     X6502_Run(85-10-16);
1309    }
1310    else
1311    {
1312     X6502_Run(6);  // Tried 65, caused problems with Slalom(maybe others)
1313     Fixit2();
1314     X6502_Run(85-6-16);
1315    }
1316
1317    if(SpriteON)
1318     RefreshSprites();
1319    if(GameHBIRQHook2 && (ScreenON || SpriteON))
1320     GameHBIRQHook2();
1321    scanline++;
1322    if (scanline<240)
1323     ResetRL(XBuf+scanline*320+32);
1324    X6502_Run(16);
1325 }
1326
1327
1328 static void EmLoop(void)
1329 {
1330  for(;;)
1331  {
1332   int x;
1333   uint32 scanlines_per_frame = PAL ? 312 : 262;
1334   UpdateInput();
1335   FCEU_ApplyPeriodicCheats();
1336
1337   // FCEUPPU_Loop:
1338   if(ppudead) /* Needed for Knight Rider, possibly others. */
1339   {
1340    //memset(XBuf, 0, 320*240);
1341    //X6502_Run(scanlines_per_frame*(256+85));
1342    int lines;
1343    for (lines=scanlines_per_frame;lines;lines--)
1344      X6502_Run(256+85);
1345    ppudead--;
1346    goto update;
1347   }
1348
1349   X6502_Run(256+85);
1350
1351   PPU[2]|=0x80;
1352   PPU[3]=PPUSPL=0;             /* Not sure if this is correct.  According
1353                                   to Matt Conte and my own tests, it is.  Timing is probably
1354                                   off, though.  NOTE:  Not having this here
1355                                   breaks a Super Donkey Kong game. */
1356
1357   X6502_Run(12);                /* I need to figure out the true nature and length
1358                                    of this delay.
1359                                 */
1360   if(FCEUGameInfo.type==GIT_NSF)
1361    DoNSFFrame();
1362   else if(VBlankON)
1363    TriggerNMI();
1364
1365   // Note: this is needed for asm core
1366   // Warning: using 'scanline' var here breaks Castlevania III
1367   {
1368    int lines;
1369    X6502_Run(256+85-12);
1370    for (lines=scanlines_per_frame-242-1;lines;lines--)
1371      X6502_Run(256+85);
1372   }
1373   // X6502_Run((scanlines_per_frame-242)*(256+85)-12);
1374   PPU_status&=0x1f;
1375   X6502_Run(256);
1376
1377   {
1378    if(ScreenON || SpriteON)
1379    {
1380     if(GameHBIRQHook && (PPU[0]&0x38)!=0x18)
1381      GameHBIRQHook();
1382     if(PPU_hook)
1383      for(x=0;x<42;x++) {PPU_hook(0x2000); PPU_hook(0);} // ugh
1384     if(GameHBIRQHook2)
1385      GameHBIRQHook2();
1386    }
1387
1388    X6502_Run(85-16);
1389
1390    if(ScreenON || SpriteON)
1391    {
1392     RefreshAddr=TempAddr;
1393     if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
1394    }
1395    spork=0;
1396    ResetRL(XBuf+32);
1397
1398    X6502_Run(16-kook);
1399    kook ^= 1;
1400   }
1401
1402   if(FCEUGameInfo.type==GIT_NSF)
1403   {
1404    // run scanlines for asm core to fuction
1405    for(scanline=0;scanline<240;scanline++)
1406     X6502_Run(256+85);
1407   }
1408   else
1409   {
1410    int x,max,maxref;
1411
1412    deemp=PPU[1]>>5;
1413    SetRefreshLine();
1414    for(scanline=0;scanline<240;)       // scanline is incremented in  DoLine.  Evil. :/
1415    {
1416     deempcnt[deemp]++;
1417     DoLine();
1418    }
1419    if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
1420    for(x=1,max=0,maxref=0;x<7;x++)
1421    {
1422     if(deempcnt[x]>max)
1423     {
1424      max=deempcnt[x];
1425      maxref=x;
1426     }
1427     deempcnt[x]=0;
1428    }
1429    SetNESDeemph(maxref,0);
1430   }
1431
1432 update:
1433   if(Exit)
1434   {
1435    //CloseGame();
1436    break;
1437   }
1438
1439   {
1440    int ssize;
1441
1442    ssize=FlushEmulateSound();
1443
1444    timestampbase += timestamp;
1445    timestamp = 0;
1446
1447    #ifdef FRAMESKIP
1448    if(FSkip)
1449    {
1450     FCEU_PutImageDummy();
1451     FSkip--;
1452     FCEUD_Update(0,WaveFinalMono,ssize);
1453    }
1454    else
1455    #endif
1456    {
1457     FCEU_PutImage();
1458     FCEUD_Update(XBuf+8,WaveFinalMono,ssize);
1459    }
1460   }
1461
1462  } // for
1463 }
1464
1465 void FCEUI_CloseGame(void)
1466 {
1467         Exit=1;
1468 }
1469
1470 static void ResetPPU(void)
1471 {
1472         VRAMBuffer=PPU[0]=PPU[1]=PPU[2]=PPU[3]=0;
1473         PPUSPL=0;
1474         PPUGenLatch=0;
1475         RefreshAddr=TempAddr=0;
1476         vtoggle = 0;
1477         ppudead = 2;
1478         kook = 0;
1479 }
1480
1481 static void PowerPPU(void)
1482 {
1483         memset(NTARAM,0x00,0x800);
1484         memset(PALRAM,0x00,0x20);
1485         memset(SPRAM,0x00,0x100);
1486         ResetPPU();
1487 }
1488
1489 void ResetNES081(void)
1490 {
1491         if(!GameLoaded) return;
1492         GameInterface(GI_RESETM2, 0);
1493         FCEUSND_Reset();
1494         ResetPPU();
1495         X6502_Reset();
1496 }
1497
1498 void FCEU_MemoryRand(uint8 *ptr, uint32 size)
1499 {
1500 #ifndef DEBUG_ASM_6502
1501  int x=0;
1502  while(size)
1503  {
1504   *ptr=(x&4)?0xFF:0x00;
1505   x++;
1506   size--;
1507   ptr++;
1508  }
1509 #endif
1510 }
1511
1512 void PowerNES(void)
1513 {
1514         if(!GameLoaded) return;
1515
1516         FCEU_CheatResetRAM();
1517         FCEU_CheatAddRAM(2,0,RAM);
1518
1519         GeniePower();
1520
1521         FCEU_MemoryRand(RAM,0x800);
1522 #ifdef DEBUG_ASM_6502
1523         memset(RAM,0x00,0x800);
1524         memset(nes_internal_ram,0x00,0x800);
1525 #endif
1526         ResetMapping();
1527         FCEUSND_Power();
1528         PowerPPU();
1529
1530         if (use098code)
1531          FCEUPPU_Power();
1532
1533         /* Have the external game hardware "powered" after the internal NES stuff.
1534            Needed for the NSF code and VS System code.
1535         */
1536         GameInterface(GI_POWER, 0);
1537         if(FCEUGameInfo.type==GIT_VSUNI)
1538          FCEU_VSUniPower();
1539 #ifdef ASM_6502
1540         if (geniestage)
1541          GenieSetPages(0);
1542 #endif
1543         timestampbase=0;
1544         X6502_Power();
1545         FCEU_PowerCheats();
1546 }
1547
1548
1549 /* savestate stuff */
1550 uint16 TempAddrT,RefreshAddrT;
1551
1552 SFORMAT FCEUPPU_STATEINFO[]={
1553  { NTARAM, 0x800, "NTAR"},
1554  { PALRAM, 0x20, "PRAM"},
1555  { SPRAM, 0x100, "SPRA"},
1556  { PPU, 0x4, "PPUR"},
1557  { &XOffset, 1, "XOFF"},
1558  { &vtoggle, 1, "VTOG"},
1559  { &RefreshAddrT, 2|RLSB, "RADD"},
1560  { &TempAddrT, 2|RLSB, "TADD"},
1561  { &VRAMBuffer, 1, "VBUF"},
1562  { &PPUGenLatch, 1, "PGEN"},
1563  // from 0.98.15
1564  { &kook, 1, "KOOK"},
1565  { &ppudead, 1, "DEAD"},
1566  { &PPUSPL, 1, "PSPL"},
1567  { 0 }
1568  };
1569
1570