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
  53 #include        "palette.h"
  54 #include        "movie.h"
  55
  56 #include        "dprintf.h"
  57
  58 #ifdef GP2X
  59 #include        "drivers/gp2x/asmutils.h"
  60 #endif
  61
  62 #define Pal     (PALRAM)
  63
  64
  65 static void (*RefreshLine)(uint8 *P, uint32 vofs) = NULL;
  66 static void PRefreshLine(void);
  67
  68 static void ResetPPU(void);
  69 static void PowerPPU(void);
  70
  71 uint64 timestampbase=0;
  72
  73 int ppudead=1;
  74 int kook=0;
  75
  76 int MMC5Hack;
  77 uint32 MMC5HackVROMMask;
  78 uint8 *MMC5HackExNTARAMPtr;
  79 uint8 *MMC5HackVROMPTR;
  80 uint8 MMC5HackCHRMode=0;
  81 uint8 MMC5HackSPMode;
  82 uint8 MMC5HackSPScroll;
  83 uint8 MMC5HackSPPage;
  84
  85 uint8 *MMC5SPRVPage[8];
  86 uint8 *MMC5BGVPage[8];
  87
  88
  89 uint8 VRAMBuffer,PPUGenLatch;
  90
  91 uint8 *vnapage[4];
  92 uint8 PPUNTARAM;
  93 uint8 PPUCHRRAM;
  94
  95 /* Color deemphasis emulation.  Joy... */
  96 static uint8 deemp=0;
  97 static int deempcnt[8];
  98
  99 FCEUGI FCEUGameInfo;
 100 void (*GameInterface)(int h, void *param);
 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 #ifndef DEBUG_ASM_6502
 115 static void asmcpu_update(int32 cycles)
 116 {
 117  // some code from x6502.c
 118  fhcnt-=cycles;
 119  if(fhcnt<=0)
 120  {
 121   FrameSoundUpdate();
 122   fhcnt+=fhinc;
 123  }
 124
 125  if(PCMIRQCount>0)
 126  {
 127   PCMIRQCount-=cycles;
 128   if(PCMIRQCount<=0)
 129   {
 130    vdis=1;
 131    if((PSG[0x10]&0x80) && !(PSG[0x10]&0x40))
 132    {
 133     extern uint8 SIRQStat;
 134     SIRQStat|=0x80;
 135     X6502_IRQBegin(FCEU_IQDPCM);
 136    }
 137   }
 138  }
 139 }
 140 #endif
 141
 142 void asmcpu_unpack(void)
 143 {
 144         nes_registers[0] = X.A << 24;
 145         nes_registers[1] = X.X;
 146         nes_registers[2] = X.Y;
 147         pc_base = 0;
 148         nes_registers[3] = X.PC;
 149         X6502_Rebase_a();
 150         nes_registers[4] = X.S << 24;
 151         nes_registers[4]|= X.IRQlow << 8;
 152         if (MapIRQHook)
 153                 nes_registers[4] |= 1<<16; // MapIRQHook set bit
 154         nes_registers[7] = (uint32)X.count << 16;
 155
 156         // NVUB DIZC
 157         nes_registers[4]|= X.P & 0x5d;
 158         nes_registers[5] = X.P << 24; // N
 159         if (!(X.P&0x02)) nes_registers[5] |= 1; // Z
 160 }
 161
 162 void asmcpu_pack(void)
 163 {
 164         X.A = nes_registers[0] >> 24;
 165         X.X = nes_registers[1];
 166         X.Y = nes_registers[2];
 167         X.PC= nes_registers[3] - pc_base;
 168         X.S = nes_registers[4] >> 24;
 169         X.IRQlow = nes_registers[4] >> 8;
 170         X.count = (int32) nes_registers[7] >> 16;
 171
 172         // NVUB DIZC
 173         X.P = nes_registers[4] & 0x5d;
 174         if (  nes_registers[5]&0x80000000)  X.P |= 0x80; // N
 175         if (!(nes_registers[5]&0x000000ff)) X.P |= 0x02; // Z
 176 }
 177 #endif
 178
 179 DECLFW(BNull)
 180 {
 181
 182 }
 183
 184 DECLFR(ANull)
 185 {
 186  return(X.DB);
 187 }
 188
 189 int AllocGenieRW(void)
 190 {
 191  if(!(AReadG=FCEU_malloc(0x8000*sizeof(readfunc))))
 192   return 0;
 193  if(!(BWriteG=FCEU_malloc(0x8000*sizeof(writefunc))))
 194   return 0;
 195  RWWrap=1;
 196  return 1;
 197 }
 198
 199 void FlushGenieRW(void)
 200 {
 201  int32 x;
 202
 203  if(RWWrap)
 204  {
 205   for(x=0;x<0x8000;x++)
 206   {
 207    ARead[x+0x8000]=AReadG[x];
 208    BWrite[x+0x8000]=BWriteG[x];
 209   }
 210 #ifdef ASM_6502
 211   GenieSetPages(1);
 212 #endif
 213   free(AReadG);
 214   free(BWriteG);
 215   AReadG=0;
 216   BWriteG=0;
 217   RWWrap=0;
 218  }
 219 }
 220
 221 readfunc FASTAPASS(1) GetReadHandler(int32 a)
 222 {
 223   if(a>=0x8000 && RWWrap)
 224    return AReadG[a-0x8000];
 225   else
 226    return ARead[a];
 227 }
 228
 229 void FASTAPASS(3) SetReadHandler(int32 start, int32 end, readfunc func)
 230 {
 231   int32 x;
 232
 233   if(!func)
 234    func=ANull;
 235
 236   if(RWWrap)
 237    for(x=end;x>=start;x--)
 238    {
 239     if(x>=0x8000)
 240      AReadG[x-0x8000]=func;
 241     else
 242      ARead[x]=func;
 243    }
 244   else
 245
 246    for(x=end;x>=start;x--)
 247     ARead[x]=func;
 248 }
 249
 250 writefunc FASTAPASS(1) GetWriteHandler(int32 a)
 251 {
 252   if(RWWrap && a>=0x8000)
 253    return BWriteG[a-0x8000];
 254   else
 255    return BWrite[a];
 256 }
 257
 258 void FASTAPASS(3) SetWriteHandler(int32 start, int32 end, writefunc func)
 259 {
 260   int32 x;
 261
 262   if(!func)
 263    func=BNull;
 264
 265   if(RWWrap)
 266    for(x=end;x>=start;x--)
 267    {
 268     if(x>=0x8000)
 269      BWriteG[x-0x8000]=func;
 270     else
 271      BWrite[x]=func;
 272    }
 273   else
 274    for(x=end;x>=start;x--)
 275     BWrite[x]=func;
 276 }
 277
 278 uint8 vtoggle=0;
 279 uint8 XOffset=0;
 280
 281 uint32 TempAddr,RefreshAddr;
 282
 283
 284 /* scanline is equal to the current visible scanline we're on. */
 285
 286 int scanline;
 287
 288 uint8 GameMemBlock[131072] __attribute__ ((aligned (4)));
 289 uint8 NTARAM[0x800] __attribute__ ((aligned (4)));
 290 uint8 PALRAM[0x20] __attribute__ ((aligned (4)));
 291 #if !defined(ASM_6502) || defined(DEBUG_ASM_6502)
 292 uint8 RAM[0x800] __attribute__ ((aligned (4)));
 293 #endif
 294
 295 uint8 PPU[4];
 296 uint8 PPUSPL;
 297
 298 uint8 PAL=0;
 299
 300
 301 #define MMC5BGVRAMADR(V)      &MMC5BGVPage[(V)>>10][(V)]
 302 #define VRAMADR(V)      &VPage[(V)>>10][(V)]
 303
 304 static int linestartts;
 305 static int tofix=0;
 306
 307 static uint8 *Plinef;
 308
 309 extern uint8 sprlinebuf[256+8];
 310 extern int32 sphitx;
 311 extern uint8 sphitdata;
 312
 313 extern int spork;       /* spork the world.  Any sprites on this line?
 314                            Then this will be set to 1.  Needed for zapper
 315                            emulation and *gasp* sprite emulation.
 316                         */
 317
 318 static void ResetRL(uint8 *target)
 319 {
 320  if(InputScanlineHook)
 321   InputScanlineHook(0,0,0,0);
 322  Plinef=target;
 323  linestartts=timestamp*48+X6502_GetCycleCount();
 324  tofix=1;
 325 }
 326
 327 static INLINE void Fixit1(void);
 328
 329 /* faking FCEUPPU_LineUpdate() from later versions of the emu */
 330 static void FakedLineUpdate(void)
 331 {
 332  #define TOFIXNUM (272-0x4)
 333  int lastpixel;
 334
 335  if (scanline >= 240) return;
 336
 337  if (tofix || sphitx != 0x100)
 338  {
 339   lastpixel = (timestamp*48-linestartts)>>4;
 340   if (PAL) lastpixel += lastpixel>>4;
 341   //printf("lastpixel: %i\n", lastpixel);
 342  }
 343
 344  if (tofix && lastpixel>=TOFIXNUM)
 345  {
 346   Fixit1();
 347   tofix=0;
 348  }
 349
 350  // CheckSpriteHit()
 351  if(sphitx!=0x100)
 352  {
 353   int l=lastpixel-16;
 354   int x;
 355
 356   for(x=sphitx;x<(sphitx+8) && x<l;x++)
 357   {
 358    if((sphitdata&(0x80>>(x-sphitx))) && !(Plinef[x]&64))
 359    {
 360     PPU_status|=0x40;
 361     sphitx=0x100;
 362     break;
 363    }
 364   }
 365  }
 366 }
 367
 368
 369 static DECLFW(BRAML)
 370 {
 371         RAM[A]=V;
 372 }
 373
 374 static DECLFW(BRAMH)
 375 {
 376         RAM[A&0x7FF]=V;
 377 }
 378
 379 static DECLFR(ARAML)
 380 {
 381         return RAM[A];
 382 }
 383
 384 static DECLFR(ARAMH)
 385 {
 386         return RAM[A&0x7FF];
 387 }
 388
 389
 390 static DECLFR(A2002)
 391 {
 392         /* merged */
 393                         uint8 ret;
 394
 395                         FakedLineUpdate();
 396                         ret = PPU_status;
 397                         ret|=PPUGenLatch&0x1F;
 398                         vtoggle=0;
 399                         PPU_status&=0x7F;
 400                          PPUGenLatch=ret;
 401                         //dprintf("r [2002] %02x",ret);
 402                         return ret;
 403 }
 404
 405 static DECLFR(A200x)
 406 {
 407         /* merged */
 408                         FakedLineUpdate();
 409                         return PPUGenLatch;
 410 }
 411
 412 static DECLFR(A2007)
 413 {
 414         /* merged */
 415                         uint8 ret;
 416                         uint32 tmp=RefreshAddr&0x3FFF;
 417
 418                         FakedLineUpdate();
 419
 420                         ret=VRAMBuffer;
 421
 422                         if(PPU_hook) PPU_hook(tmp);
 423                         PPUGenLatch=VRAMBuffer;
 424                         if(tmp<0x2000)
 425                         {
 426                          VRAMBuffer=VPage[tmp>>10][tmp];
 427                         }
 428                         else
 429                         {
 430                          VRAMBuffer=vnapage[(tmp>>10)&0x3][tmp&0x3FF];
 431                         }
 432
 433                         if (INC32) RefreshAddr+=32;
 434                         else RefreshAddr++;
 435                         if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
 436                         dprintf("r [2007] %02x",ret);
 437                         return ret;
 438 }
 439
 440 static DECLFW(B2000)
 441 {
 442         /* NMI2? */
 443                 FakedLineUpdate();
 444                 PPUGenLatch=V;
 445                 PPU[0]=V;
 446                 TempAddr&=0xF3FF;
 447                 TempAddr|=(V&3)<<10;
 448 }
 449
 450 static DECLFW(B2001)
 451 {
 452         /* merged */
 453                   FakedLineUpdate();
 454                   PPUGenLatch=V;
 455                   PPU[1]=V;
 456                   if(V&0xE0)
 457                    deemp=V>>5;
 458                   //printf("$%04x:$%02x, %d\n",X.PC,V,scanline);
 459 }
 460
 461 static DECLFW(B2002)
 462 {
 463         /* merged */
 464                  PPUGenLatch=V;
 465 }
 466
 467 static DECLFW(B2003)
 468 {
 469         /* merged */
 470                 PPUGenLatch=V;
 471                 PPU[3]=V;
 472                 PPUSPL=V&0x7;
 473 }
 474
 475 static DECLFW(B2004)
 476 {
 477         /* merged */
 478                 PPUGenLatch=V;
 479                 if(PPUSPL>=8)
 480                 {
 481                  if(PPU[3]>=8)
 482                   SPRAM[PPU[3]]=V;
 483                 }
 484                 else
 485                 {
 486                  //printf("$%02x:$%02x\n",PPUSPL,V);
 487                  SPRAM[PPUSPL]=V;
 488                 }
 489                 PPU[3]++;
 490                 PPUSPL++;
 491
 492 }
 493
 494 static DECLFW(B2005)
 495 {
 496         /* merged */
 497                 uint32 tmp=TempAddr;
 498                 FakedLineUpdate();
 499                 PPUGenLatch=V;
 500                 if (!vtoggle)
 501                 {
 502                  tmp&=0xFFE0;
 503                  tmp|=V>>3;
 504                  XOffset=V&7;
 505                 }
 506                 else
 507                 {
 508                  tmp&=0x8C1F;
 509                  tmp|=((V&~0x7)<<2);
 510                  tmp|=(V&7)<<12;
 511                 }
 512
 513                 TempAddr=tmp;
 514                 vtoggle^=1;
 515 }
 516
 517 static DECLFW(B2006)
 518 {
 519         /* merged */
 520                        FakedLineUpdate();
 521
 522                        PPUGenLatch=V;
 523                        if(!vtoggle)
 524                        {
 525                         TempAddr&=0x00FF;
 526                         TempAddr|=(V&0x3f)<<8;
 527                        }
 528                        else
 529                        {
 530                         TempAddr&=0xFF00;
 531                         TempAddr|=V;
 532
 533                         RefreshAddr=TempAddr;
 534                         if(PPU_hook)
 535                          PPU_hook(RefreshAddr);
 536                        }
 537                       vtoggle^=1;
 538 }
 539
 540 static DECLFW(B2007)
 541 {
 542         /* merged */
 543                         uint32 tmp=RefreshAddr&0x3FFF;
 544                         PPUGenLatch=V;
 545                         if(tmp>=0x3F00)
 546                         {
 547                          // hmmm....
 548                          if(!(tmp&0xf))
 549                           PALRAM[0x00]=PALRAM[0x04]=PALRAM[0x08]=PALRAM[0x0C]=V&0x3f;
 550                          else if(tmp&3) PALRAM[(tmp&0x1f)]=V&0x3f;
 551                         }
 552                         else if(tmp<0x2000)
 553                         {
 554                           if(PPUCHRRAM&(1<<(tmp>>10)))
 555                             VPage[tmp>>10][tmp]=V;
 556                         }
 557                         else
 558                         {
 559                          if(PPUNTARAM&(1<<((tmp&0xF00)>>10)))
 560                           vnapage[((tmp&0xF00)>>10)][tmp&0x3FF]=V;
 561                         }
 562                         if (INC32) RefreshAddr+=32;
 563                         else RefreshAddr++;
 564                         if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
 565 }
 566
 567 static DECLFW(B4014)
 568 {
 569         uint32 t=V<<8;
 570         int x;
 571
 572         for(x=0;x<256;x++)
 573          B2004(0x2004,X.DB=ARead[t+x](t+x));
 574         X6502_AddCycles(512);
 575 }
 576
 577 void BGRender(uint8 *target)
 578 {
 579         uint32 tem, vofs;
 580         vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
 581
 582         Pal[0]|=64;
 583         Pal[4]|=64;
 584         Pal[8]|=64;
 585         Pal[0xC]|=64;
 586         RefreshLine(target-XOffset, vofs);
 587         Pal[0]&=63;
 588         Pal[4]&=63;
 589         Pal[8]&=63;
 590         Pal[0xC]&=63;
 591
 592         if(!(PPU[1]&2))
 593         {
 594          tem=Pal[0]|0x40;
 595          tem|=tem<<8;
 596          tem|=tem<<16;
 597          *(uint32 *)target=*(uint32 *)(target+4)=tem;
 598         }
 599 }
 600
 601 #ifdef FRAMESKIP
 602 int FSkip=0;
 603 void FCEUI_FrameSkip(int x)
 604 {
 605  FSkip=x;
 606 }
 607 #endif
 608
 609 /*      This is called at the beginning of each visible scanline */
 610 static void LineUpdate(uint8 *target)
 611 {
 612         uint32 tem;
 613         int y;
 614
 615         /* PRefreshLine() will not get called on skipped frames.  This
 616          * could cause a problem, but the solution would be rather complex,
 617          * due to the current sprite 0 hit code.
 618          */
 619         if(FSkip)
 620         {
 621          y=(int)SPRAM[0] + 1;
 622          if(scanline==y && SpriteON) PPU_status|=0x40; // hack
 623          return;
 624         }
 625
 626         if(scanline < FSettings.FirstSLine || scanline > FSettings.LastSLine)
 627         {
 628            if(PPU_hook)
 629             PRefreshLine();
 630            y=(int)SPRAM[0] + 1;
 631            if(scanline==y && SpriteON) PPU_status|=0x40;
 632         }
 633         else
 634         {
 635          if(ScreenON)
 636          {
 637            BGRender(target);
 638          }
 639          else
 640          {
 641            tem=Pal[0]|0x40;
 642            tem|=tem << 8;
 643            tem|=tem << 16;
 644            FCEU_dwmemset(target,tem,256);
 645          }
 646         }
 647
 648         if(InputScanlineHook)
 649          InputScanlineHook(target,spork?sprlinebuf:0,linestartts,256);
 650 }
 651
 652
 653 static void LineUpdateEnd(uint8 *target)
 654 {
 655 #ifdef GP2X
 656  if(ScreenON || SpriteON)  // Yes, very el-cheapo.
 657  {
 658   if(PPU[1]&0x01)
 659    block_and(target, 256, 0x30);
 660  }
 661  if((PPU[1]>>5)==0x7)
 662   block_or(target, 256, 0xc0);
 663  else if(PPU[1]&0xE0)
 664   block_or(target, 256, 0x40);
 665  else
 666   block_andor(target, 256, 0x3f, 0x80);
 667 #else
 668  int x;
 669
 670  if(ScreenON || SpriteON)  // Yes, very el-cheapo.
 671  {
 672   if(PPU[1]&0x01)
 673   {
 674    for(x=63;x>=0;x--)
 675    *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])&0x30303030;
 676   }
 677  }
 678  if((PPU[1]>>5)==0x7)
 679  {
 680   for(x=63;x>=0;x--)
 681    *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0xc0c0c0c0;
 682  }
 683  else if(PPU[1]&0xE0)
 684   for(x=63;x>=0;x--)
 685    *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])|0x40404040;
 686  else
 687   for(x=63;x>=0;x--)
 688    *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0x80808080;
 689 #endif
 690
 691  // black borders
 692  ((uint32 *)target)[-2]=((uint32 *)target)[-1]=0;
 693  ((uint32 *)target)[64]=((uint32 *)target)[65]=0;
 694 }
 695
 696 #define PAL(c)  ((c)+cc)
 697
 698
 699 static void PRefreshLine(void)
 700 {
 701          uint32 vofs;
 702          int X1;
 703          vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
 704          void (*PPU_hook_)(uint32 A) = PPU_hook;
 705
 706
 707          for(X1=33;X1;X1--)
 708          {
 709                 uint32 zz2;
 710                 uint32 vadr;
 711
 712                 zz2=(RefreshAddr>>10)&3;
 713                 PPU_hook_(0x2000|(RefreshAddr&0xFFF));
 714
 715                 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
 716
 717                 PPU_hook_(vadr);
 718
 719                 if((RefreshAddr&0x1f)==0x1f)
 720                  RefreshAddr^=0x41F;
 721                 else
 722                  RefreshAddr++;
 723          }
 724 }
 725
 726 /* This high-level graphics MMC5 emulation code was written
 727    for MMC5 carts in "CL" mode.  It's probably not totally
 728    correct for carts in "SL" mode.
 729    */
 730 static void RefreshLine_MMC5Hack1(uint8 *P, uint32 vofs)
 731 {
 732           int8 tochange, X1;
 733
 734           tochange=MMC5HackSPMode&0x1F;
 735
 736           for(X1=33;X1;X1--,P+=8)
 737           {
 738                 uint8 *C;
 739                 uint8 cc,zz,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                  zz=RefreshAddr&0x1F;
 761                  zz2=(RefreshAddr>>10)&3;
 762                  vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
 763                  C = MMC5BGVRAMADR(vadr);
 764                  cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
 765                  cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
 766                 }
 767                 #include "fceline.h"
 768
 769                 if((RefreshAddr&0x1f)==0x1f)
 770                  RefreshAddr^=0x41F;
 771                 else
 772                  RefreshAddr++;
 773                 tochange--;
 774           }
 775 }
 776
 777 static void RefreshLine_MMC5Hack2(uint8 *P, uint32 vofs)
 778 {
 779           int8 tochange, X1;
 780
 781           tochange=MMC5HackSPMode&0x1F;
 782
 783           for(X1=33;X1;X1--,P+=8)
 784           {
 785                 uint8 *C;
 786                 uint8 cc;
 787                 uint8 zz2;
 788                 uint32 vadr;
 789
 790                 if((tochange<=0 && MMC5HackSPMode&0x40) ||
 791                    (tochange>0 && !(MMC5HackSPMode&0x40)))
 792                 {
 793                  uint8 xs,ys;
 794
 795                  xs=33-X1;
 796                  ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
 797                  if(ys>=0x1E) ys-=0x1E;
 798                  vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
 799
 800                  C = MMC5HackVROMPTR+vadr;
 801                  C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
 802
 803                  cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
 804                  cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
 805                 }
 806                 else
 807                 {
 808                  C=MMC5HackVROMPTR;
 809                  zz2=(RefreshAddr>>10)&3;
 810                  vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
 811                  C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
 812                          MMC5HackVROMMask) << 12) + (vadr & 0xfff);
 813                  vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
 814                  cc = vadr;
 815                 }
 816                 #include "fceline.h"
 817                 if((RefreshAddr&0x1f)==0x1f)
 818                  RefreshAddr^=0x41F;
 819                 else
 820                  RefreshAddr++;
 821                 tochange--;
 822           }
 823 }
 824
 825 static void RefreshLine_MMC5Hack3(uint8 *P, uint32 vofs)
 826 {
 827           int8 X1;
 828
 829           for(X1=33;X1;X1--,P+=8)
 830           {
 831                 uint8 *C;
 832                 uint8 cc;
 833                 uint8 zz2;
 834                 uint32 vadr;
 835
 836                 C=MMC5HackVROMPTR;
 837                 zz2=(RefreshAddr>>10)&3;
 838                 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
 839                 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
 840                         MMC5HackVROMMask) << 12) + (vadr & 0xfff);
 841                 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
 842                 cc = vadr;
 843
 844                 #include "fceline.h"
 845                 if((RefreshAddr&0x1f)==0x1f)
 846                  RefreshAddr^=0x41F;
 847                 else
 848                  RefreshAddr++;
 849           }
 850 }
 851
 852 static void RefreshLine_MMC5Hack4(uint8 *P, uint32 vofs)
 853 {
 854           int8 X1;
 855
 856           for(X1=33;X1;X1--,P+=8)
 857           {
 858                 uint8 *C;
 859                 uint8 cc,zz,zz2;
 860                 uint32 vadr;
 861
 862                 zz=RefreshAddr&0x1F;
 863                 zz2=(RefreshAddr>>10)&3;
 864                 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
 865                 C = MMC5BGVRAMADR(vadr);
 866                 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
 867                 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
 868
 869                 #include "fceline.h"
 870
 871                 if((RefreshAddr&0x1f)==0x1f)
 872                  RefreshAddr^=0x41F;
 873                 else
 874                  RefreshAddr++;
 875           }
 876 }
 877
 878 static void RefreshLine_PPU_hook(uint8 *P, uint32 vofs)
 879 {
 880          int8 X1;
 881          void (*PPU_hook_)(uint32 A) = PPU_hook;
 882          uint32 rfraddr = RefreshAddr;
 883          uint8 *page = vnapage[(rfraddr>>10)&3];
 884
 885          for(X1=33;X1;X1--,P+=8)
 886          {
 887                 uint8 *C;
 888                 uint8 cc,zz;
 889                 uint32 vadr;
 890
 891                 zz=rfraddr&0x1F;
 892                 PPU_hook_(0x2000|(rfraddr&0xFFF));
 893                 cc=page[0x3c0+(zz>>2)+((rfraddr&0x380)>>4)];
 894                 cc=((cc >> ((zz&2) + ((rfraddr&0x40)>>4))) &3) <<2;
 895                 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
 896                 C = VRAMADR(vadr);
 897
 898                 #include "fceline.h"
 899
 900                 PPU_hook_(vadr);
 901
 902                 if((rfraddr&0x1f)==0x1f) {
 903                  rfraddr^=0x41F;
 904                  page = vnapage[(rfraddr>>10)&3];
 905                 } else
 906                  rfraddr++;
 907          }
 908          RefreshAddr = rfraddr;
 909 }
 910
 911 static void RefreshLine_normal(uint8 *P, uint32 vofs) // vofs is 0x107 max
 912 {
 913          int8 X1;
 914          uint32 rfraddr = RefreshAddr;
 915          uint8 *page = vnapage[(rfraddr>>10)&3];
 916          uint32 cc2=0;
 917
 918          if ((rfraddr&0xc)!=0)
 919           cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
 920
 921          for (X1=33;X1;X1--,P+=8)
 922          {
 923                 uint8 cc,*C;
 924                 uint32 vadr;
 925
 926                 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
 927                 C = VRAMADR(vadr);
 928                 if ((rfraddr&0xc)==0)
 929                  cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
 930                 cc=((cc2 >> ((rfraddr&2) + ((rfraddr&0x40)>>4) + ((rfraddr&0xc)<<1))) & 3) << 2;
 931
 932                 #include "fceline.h"
 933
 934                 if((rfraddr&0x1f)==0x1f) {
 935                  rfraddr^=0x41F;
 936                  page = vnapage[(rfraddr>>10)&3];
 937                 } else
 938                  rfraddr++;
 939          }
 940          RefreshAddr = rfraddr;
 941 }
 942
 943 static void SetRefreshLine(void)
 944 {
 945         if(MMC5Hack && geniestage!=1)
 946         {
 947          if(MMC5HackCHRMode==0 && (MMC5HackSPMode&0x80))
 948          {
 949                  if (RefreshLine != RefreshLine_MMC5Hack1) printf("set refr RefreshLine_MMC5Hack1\n");
 950                  RefreshLine = RefreshLine_MMC5Hack1;
 951          }
 952          else if(MMC5HackCHRMode==1 && (MMC5HackSPMode&0x80))
 953          {
 954                 if (RefreshLine != RefreshLine_MMC5Hack2) printf("set refr RefreshLine_MMC5Hack2\n");
 955                  RefreshLine = RefreshLine_MMC5Hack2;
 956          }
 957          else if(MMC5HackCHRMode==1)
 958          {
 959                 if (RefreshLine != RefreshLine_MMC5Hack3) printf("set refr RefreshLine_MMC5Hack3\n");
 960                  RefreshLine = RefreshLine_MMC5Hack3;
 961          }
 962          else
 963          {
 964                 if (RefreshLine != RefreshLine_MMC5Hack4) printf("set refr RefreshLine_MMC5Hack4\n");
 965                  RefreshLine = RefreshLine_MMC5Hack4;
 966          }
 967         }       // End if(MMC5Hack)
 968         else if(PPU_hook)
 969         {
 970                 if (RefreshLine != RefreshLine_PPU_hook) printf("set refr RefreshLine_PPU_hook\n");
 971                 RefreshLine = RefreshLine_PPU_hook;
 972         }
 973         else
 974         {
 975                 if (RefreshLine != RefreshLine_normal) printf("set refr RefreshLine_normal\n");
 976                 RefreshLine = RefreshLine_normal;
 977         }
 978 }
 979
 980 static INLINE
 981 void Fixit2(void)
 982 {
 983    if(ScreenON || SpriteON)
 984    {
 985     uint32 rad=RefreshAddr;
 986     rad&=0xFBE0;
 987     rad|=TempAddr&0x041f;
 988     RefreshAddr=rad;
 989     //PPU_hook(RefreshAddr,-1);
 990    }
 991 }
 992
 993 static INLINE
 994 void Fixit1(void)
 995 {
 996    if(ScreenON || SpriteON)
 997    {
 998     uint32 rad=RefreshAddr;
 999
1000     if((rad&0x7000)==0x7000)
1001     {
1002      rad^=0x7000;
1003      if((rad&0x3E0)==0x3A0)
1004      {
1005       rad^=0x3A0;
1006       rad^=0x800;
1007      }
1008      else
1009      {
1010       if((rad&0x3E0)==0x3e0)
1011        rad^=0x3e0;
1012       else rad+=0x20;
1013      }
1014     }
1015     else
1016      rad+=0x1000;
1017     RefreshAddr=rad;
1018     //PPU_hook(RefreshAddr,-1);
1019    }
1020 }
1021
1022
1023 // ============================//
1024 // end of new code
1025 // ===========================//
1026
1027 void ResetMapping(void)
1028 {
1029         int x;
1030
1031         SetReadHandler(0x0000,0xFFFF,ANull);
1032         SetWriteHandler(0x0000,0xFFFF,BNull);
1033
1034         SetReadHandler(0,0x7FF,ARAML);
1035         SetWriteHandler(0,0x7FF,BRAML);
1036
1037         SetReadHandler(0x800,0x1FFF,ARAMH);  /* Part of a little */
1038         SetWriteHandler(0x800,0x1FFF,BRAMH); /* hack for a small speed boost. */
1039
1040         for(x=0x2000;x<0x4000;x+=8)
1041         {
1042          ARead[x]=A200x;
1043          BWrite[x]=B2000;
1044          ARead[x+1]=A200x;
1045          BWrite[x+1]=B2001;
1046          ARead[x+2]=A2002;
1047          BWrite[x+2]=B2002;
1048          ARead[x+3]=A200x;
1049          BWrite[x+3]=B2003;
1050          ARead[x+4]=A200x;
1051          BWrite[x+4]=B2004;
1052          ARead[x+5]=A200x;
1053          BWrite[x+5]=B2005;
1054          ARead[x+6]=A200x;
1055          BWrite[x+6]=B2006;
1056          ARead[x+7]=A2007;
1057          BWrite[x+7]=B2007;
1058         }
1059
1060         BWrite[0x4014]=B4014;
1061         SetNESSoundMap();
1062         InitializeInput();
1063 }
1064
1065 int GameLoaded=0;
1066 void CloseGame(void)
1067 {
1068  FCEUI_StopMovie();
1069  if(GameLoaded)
1070  {
1071   if(FCEUGameInfo.type!=GIT_NSF)
1072    FCEU_FlushGameCheats(0,0);
1073   #ifdef NETWORK
1074   if(FSettings.NetworkPlay) KillNetplay();
1075   #endif
1076   GameInterface(GI_CLOSE, 0);
1077   CloseGenie();
1078   GameLoaded=0;
1079  }
1080 }
1081
1082 void ResetGameLoaded(void)
1083 {
1084         if(GameLoaded) CloseGame();
1085         GameStateRestore=0;
1086         PPU_hook=0;
1087         GameHBIRQHook=GameHBIRQHook2=0;
1088         GameExpSound.Fill=0;
1089         GameExpSound.RChange=0;
1090         if(GameExpSound.Kill)
1091          GameExpSound.Kill();
1092         GameExpSound.Kill=0;
1093         MapIRQHook=0;
1094         MMC5Hack=0;
1095         PAL&=1;
1096         pale=0;
1097
1098         FCEUGameInfo.name=0;
1099         FCEUGameInfo.type=GIT_CART;
1100         FCEUGameInfo.vidsys=GIV_USER;
1101         FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=-1;
1102         FCEUGameInfo.inputfc=-1;
1103
1104         FCEUGameInfo.soundchan=0;
1105         FCEUGameInfo.soundrate=0;
1106         FCEUGameInfo.cspecial=0;
1107 }
1108
1109 char lastLoadedGameName [2048];
1110 int LoadGameLastError = 0;
1111 int UNIFLoad(const char *name, int fp);
1112 int iNESLoad(const char *name, int fp);
1113 int FDSLoad(const char *name, int fp);
1114 int NSFLoad(int fp);
1115
1116 FCEUGI *FCEUI_LoadGame(char *name)
1117 {
1118         char name2[512];
1119         int have_movie = 0, have_ips = 0;
1120         int fp;
1121
1122         //Exit=1;
1123         LoadGameLastError = 0;
1124         ResetGameLoaded();
1125
1126         strncpy(name2, name, sizeof(name2));
1127         name2[sizeof(name2)-1] = 0;
1128
1129         fp=FCEU_fopen(name2,"rb");
1130         if(!fp)
1131         {
1132          FCEU_PrintError("Error opening \"%s\"!",name);
1133          LoadGameLastError = 1;
1134          return 0;
1135         }
1136
1137         {
1138          char *p = name2 + strlen(name2) - 4;
1139          if (strcasecmp(p, ".fcm") == 0) printf("movie detected\n"), have_movie = 1;
1140          if (strcasecmp(p, ".ips") == 0) printf("ips detected\n"), have_ips = 1;
1141          if (have_movie || have_ips)
1142          {
1143           // movie detected
1144           FCEU_fclose(fp);
1145           *p = 0;
1146           fp=FCEU_fopen(name2,"rb");
1147           if (!fp && p - name2 > 2)
1148           {
1149            for (p--; p > name2 && *p != '.'; p--);
1150            *p = 0;
1151            fp=FCEU_fopen(name2,"rb");
1152           }
1153           if (!fp) {
1154            printf("no ROM for ips/movie\n");
1155            LoadGameLastError = 2;
1156            return 0;
1157           }
1158          }
1159         }
1160
1161         // do IPS patch
1162         if (have_ips)
1163         {
1164          FCEU_fclose(fp);
1165          FILE *ips = fopen(name, "rb");
1166          if (!ips) return 0;
1167          fp=FCEU_fopen_forcemem(name2);
1168          if (!fp) { fclose(ips); return 0; }
1169          ApplyIPS(ips, fp); // closes ips
1170         }
1171
1172         GetFileBase(name2);
1173         if(iNESLoad(name2,fp))
1174          goto endlseq;
1175         if(NSFLoad(fp))
1176          goto endlseq;
1177         if(FDSLoad(name2,fp))
1178          goto endlseq;
1179         if(UNIFLoad(name2,fp))
1180          goto endlseq;
1181
1182         FCEU_PrintError("An error occurred while loading the file.");
1183         FCEU_fclose(fp);
1184         // format handlers may set LoadGameLastError themselves.
1185         if (LoadGameLastError == 0) LoadGameLastError = 3;
1186         return 0;
1187
1188         endlseq:
1189         FCEU_fclose(fp);
1190         GameLoaded=1;
1191
1192         FCEU_ResetVidSys();
1193         if(FCEUGameInfo.type!=GIT_NSF)
1194          if(FSettings.GameGenie)
1195           OpenGenie();
1196
1197         PowerNES();
1198         #ifdef NETWORK
1199         if(FSettings.NetworkPlay) InitNetplay();
1200         #endif
1201         SaveStateRefresh();
1202         if(FCEUGameInfo.type!=GIT_NSF)
1203         {
1204          FCEU_LoadGamePalette();
1205          FCEU_LoadGameCheats(0);
1206         }
1207
1208         FCEU_ResetPalette();
1209         Exit=0;
1210
1211         if (have_movie)
1212                 FCEUI_LoadMovie(name, 1);
1213
1214         strcpy(lastLoadedGameName, name2);
1215
1216         return(&FCEUGameInfo);
1217 }
1218
1219
1220 void FCEU_ResetVidSys(void)
1221 {
1222  int w;
1223
1224  if(FCEUGameInfo.vidsys==GIV_NTSC)
1225   w=0;
1226  else if(FCEUGameInfo.vidsys==GIV_PAL)
1227   w=1;
1228  else
1229   w=FSettings.PAL;
1230
1231  if(w)
1232  {
1233   PAL=1;
1234   FSettings.FirstSLine=FSettings.UsrFirstSLine[1];
1235   FSettings.LastSLine=FSettings.UsrLastSLine[1];
1236  }
1237  else
1238  {
1239   PAL=0;
1240   FSettings.FirstSLine=FSettings.UsrFirstSLine[0];
1241   FSettings.LastSLine=FSettings.UsrLastSLine[0];
1242  }
1243  printf("ResetVidSys: PAL = %i\n", PAL);
1244  SetSoundVariables();
1245 }
1246
1247 int FCEUI_Initialize(void)
1248 {
1249         if(!InitVirtualVideo())
1250          return 0;
1251         memset(&FSettings,0,sizeof(FSettings));
1252         FSettings.UsrFirstSLine[0]=8;
1253         FSettings.UsrFirstSLine[1]=0;
1254         FSettings.UsrLastSLine[0]=FSettings.UsrLastSLine[1]=239;
1255         FSettings.SoundVolume=100;
1256
1257         FCEUI_Initialize098();
1258         FCEUI_SetEmuMode(0);
1259
1260         return 1;
1261 }
1262
1263 void FCEUI_Kill(void)
1264 {
1265  FCEU_KillGenie();
1266 }
1267
1268 static void EmLoop(void);
1269
1270 int use098code = 0;
1271 void (*ResetNES)(void) = 0;
1272 void (*PowerNES)(void) = 0;
1273 void (*FCEUI_Emulate)(void) = 0;
1274
1275 void FCEUI_SetEmuMode(int is_new)
1276 {
1277    use098code = is_new;
1278    if (is_new)
1279    {
1280     ResetNES=ResetNES098;
1281     PowerNES=PowerNES098;
1282     FCEUI_Emulate=FCEUI_Emulate098;
1283    }
1284    else
1285    {
1286     ResetNES=ResetNES081;
1287     PowerNES=PowerNES081;
1288     FCEUI_Emulate=EmLoop;
1289    }
1290 }
1291
1292 void MMC5_hb(int);     /* Ugh ugh ugh. */
1293 static void DoLine(void)
1294 {
1295    uint8 *target=XBuf+scanline*320+32;
1296
1297    LineUpdate(target);
1298
1299    if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
1300
1301    X6502_Run(256);
1302
1303    // check: Battletoads & Double Dragon, Addams Family
1304    // sky glitches in SMB1 if done wrong
1305    FakedLineUpdate();
1306
1307 #ifdef FRAMESKIP
1308    if(!FSkip)
1309 #endif
1310    if(scanline>=FSettings.FirstSLine && scanline<=FSettings.LastSLine)
1311    {
1312     if(SpriteON && spork)
1313      CopySprites(target);
1314
1315     LineUpdateEnd(target);
1316    }
1317    sphitx=0x100;
1318
1319    if(ScreenON || SpriteON)
1320     FetchSpriteData();
1321
1322    // DoHBlank();
1323    if(GameHBIRQHook && (ScreenON || SpriteON) && ((PPU[0]&0x38)!=0x18))
1324    {
1325     X6502_Run(6);
1326     Fixit2();
1327     X6502_Run(4);
1328     GameHBIRQHook();
1329     X6502_Run(85-10-16);
1330    }
1331    else
1332    {
1333     X6502_Run(6);  // Tried 65, caused problems with Slalom(maybe others)
1334     Fixit2();
1335     X6502_Run(85-6-16);
1336    }
1337
1338    if(SpriteON)
1339     RefreshSprites();
1340    if(GameHBIRQHook2 && (ScreenON || SpriteON))
1341     GameHBIRQHook2();
1342    scanline++;
1343    if (scanline<240)
1344     ResetRL(XBuf+scanline*320+32);
1345    X6502_Run(16);
1346 }
1347
1348
1349 static void EmLoop(void)
1350 {
1351  for(;;)
1352  {
1353   int x;
1354   uint32 scanlines_per_frame = PAL ? 312 : 262;
1355   UpdateInput();
1356   FCEU_ApplyPeriodicCheats();
1357
1358   // FCEUPPU_Loop:
1359   if(ppudead) /* Needed for Knight Rider, possibly others. */
1360   {
1361    //memset(XBuf, 0, 320*240);
1362    //X6502_Run(scanlines_per_frame*(256+85));
1363    int lines;
1364    for (lines=scanlines_per_frame;lines;lines--)
1365      X6502_Run(256+85);
1366    ppudead--;
1367    goto update;
1368   }
1369
1370   X6502_Run(256+85);
1371
1372   PPU[2]|=0x80;
1373   PPU[3]=PPUSPL=0;             /* Not sure if this is correct.  According
1374                                   to Matt Conte and my own tests, it is.  Timing is probably
1375                                   off, though.  NOTE:  Not having this here
1376                                   breaks a Super Donkey Kong game. */
1377
1378   X6502_Run(12);                /* I need to figure out the true nature and length
1379                                    of this delay.
1380                                 */
1381   if(FCEUGameInfo.type==GIT_NSF)
1382    DoNSFFrame();
1383   else if(VBlankON)
1384    TriggerNMI();
1385
1386   // Note: this is needed for asm core
1387   // Warning: using 'scanline' var here breaks Castlevania III
1388   {
1389    int lines;
1390    X6502_Run(256+85-12);
1391    for (lines=scanlines_per_frame-242-1;lines;lines--)
1392      X6502_Run(256+85);
1393   }
1394   // X6502_Run((scanlines_per_frame-242)*(256+85)-12);
1395   PPU_status&=0x1f;
1396   X6502_Run(256);
1397
1398   {
1399    if(ScreenON || SpriteON)
1400    {
1401     if(GameHBIRQHook)
1402      GameHBIRQHook();
1403      if(PPU_hook)
1404       for(x=0;x<42;x++) {PPU_hook(0x2000); PPU_hook(0);} // ugh
1405     if(GameHBIRQHook2)
1406      GameHBIRQHook2();
1407    }
1408
1409    X6502_Run(85-16);
1410
1411    if(ScreenON || SpriteON)
1412    {
1413     RefreshAddr=TempAddr;
1414     if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
1415    }
1416    spork=0;
1417    ResetRL(XBuf+32);
1418
1419    X6502_Run(16-kook);
1420    kook ^= 1;
1421   }
1422
1423   if(FCEUGameInfo.type==GIT_NSF)
1424   {
1425    // run scanlines for asm core to fuction
1426    for(scanline=0;scanline<240;scanline++)
1427     X6502_Run(256+85);
1428   }
1429   else
1430   {
1431    int x,max,maxref;
1432
1433    deemp=PPU[1]>>5;
1434    SetRefreshLine();
1435    for(scanline=0;scanline<240;)       // scanline is incremented in  DoLine.  Evil. :/
1436    {
1437     deempcnt[deemp]++;
1438     DoLine();
1439    }
1440    if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
1441    for(x=1,max=0,maxref=0;x<7;x++)
1442    {
1443     if(deempcnt[x]>max)
1444     {
1445      max=deempcnt[x];
1446      maxref=x;
1447     }
1448     deempcnt[x]=0;
1449    }
1450    SetNESDeemph(maxref,0);
1451   }
1452
1453 update:
1454   if(Exit)
1455   {
1456    //CloseGame();
1457    break;
1458   }
1459
1460   {
1461    int ssize;
1462
1463    ssize=FlushEmulateSound();
1464
1465    timestampbase += timestamp;
1466    timestamp = 0;
1467
1468    #ifdef FRAMESKIP
1469    if(FSkip)
1470    {
1471     FCEU_PutImageDummy();
1472     FSkip--;
1473     FCEUD_Update(0,WaveFinalMono,ssize);
1474    }
1475    else
1476    #endif
1477    {
1478     FCEU_PutImage();
1479     FCEUD_Update(XBuf+8,WaveFinalMono,ssize);
1480    }
1481   }
1482
1483  } // for
1484 }
1485
1486 void FCEUI_CloseGame(void)
1487 {
1488         Exit=1;
1489 }
1490
1491 static void ResetPPU(void)
1492 {
1493         VRAMBuffer=PPU[0]=PPU[1]=PPU[2]=PPU[3]=0;
1494         PPUSPL=0;
1495         PPUGenLatch=0;
1496         RefreshAddr=TempAddr=0;
1497         vtoggle = 0;
1498         ppudead = 2;
1499         kook = 0;
1500 }
1501
1502 static void PowerPPU(void)
1503 {
1504         memset(NTARAM,0x00,0x800);
1505         memset(PALRAM,0x00,0x20);
1506         memset(SPRAM,0x00,0x100);
1507         ResetPPU();
1508 }
1509
1510 void ResetNES081(void)
1511 {
1512         if(!GameLoaded) return;
1513         GameInterface(GI_RESETM2, 0);
1514         ResetSound();
1515         ResetPPU();
1516         X6502_Reset();
1517 }
1518
1519 #ifndef DEBUG_ASM_6502
1520 static void FCEU_MemoryRand(uint8 *ptr, uint32 size)
1521 {
1522  int x=0;
1523  while(size)
1524  {
1525   *ptr=(x&4)?0xFF:0x00;
1526   x++;
1527   size--;
1528   ptr++;
1529  }
1530 }
1531 #endif
1532
1533 void PowerNES081(void)
1534 {
1535         if(!GameLoaded) return;
1536
1537         FCEU_CheatResetRAM();
1538         FCEU_CheatAddRAM(2,0,RAM);
1539
1540         GeniePower();
1541
1542 #ifndef DEBUG_ASM_6502
1543         FCEU_MemoryRand(RAM,0x800);
1544 #else
1545         memset(RAM,0x00,0x800);
1546 #endif
1547         ResetMapping();
1548         PowerSound();
1549         PowerPPU();
1550         GameInterface(GI_POWER, 0);
1551         if(FCEUGameInfo.type==GIT_VSUNI)
1552          FCEU_VSUniPower();
1553 #ifdef ASM_6502
1554         if (geniestage)
1555          GenieSetPages(0);
1556 #endif
1557         timestampbase=0;
1558         X6502_Power();
1559         FCEU_PowerCheats();
1560 }
1561
1562
1563 /* savestate stuff */
1564 uint16 TempAddrT,RefreshAddrT;
1565
1566 SFORMAT FCEUPPU_STATEINFO[]={
1567  { NTARAM, 0x800, "NTAR"},
1568  { PALRAM, 0x20, "PRAM"},
1569  { SPRAM, 0x100, "SPRA"},
1570  { PPU, 0x4, "PPUR"},
1571  { &XOffset, 1, "XOFF"},
1572  { &vtoggle, 1, "VTOG"},
1573  { &RefreshAddrT, 2|RLSB, "RADD"},
1574  { &TempAddrT, 2|RLSB, "TADD"},
1575  { &VRAMBuffer, 1, "VBUF"},
1576  { &PPUGenLatch, 1, "PGEN"},
1577  // from 0.98.15
1578  { &kook, 1, "KOOK"},
1579  { &ppudead, 1, "DEAD"},
1580  { &PPUSPL, 1, "PSPL"},
1581  { 0 }
1582  };
1583
1584