1 /* FCE Ultra - NES/Famicom Emulator
3 * Copyright notice for this file:
4 * Copyright (C) 1998 BERO
5 * Copyright (C) 2002 Ben Parnell
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.
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.
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
57 extern int cpu_repeat;
58 extern int cpu_lastval;
61 static void (*RefreshLine)(uint8 *P, uint32 vofs) = NULL;
62 static void PRefreshLine(void);
64 static void ResetPPU(void);
65 static void PowerPPU(void);
67 uint64 timestampbase=0;
70 uint32 MMC5HackVROMMask;
71 uint8 *MMC5HackExNTARAMPtr;
72 uint8 *MMC5HackVROMPTR;
73 uint8 MMC5HackCHRMode=0;
75 uint8 MMC5HackSPScroll;
78 uint8 *MMC5SPRVPage[8];
79 uint8 *MMC5BGVPage[8];
82 uint8 VRAMBuffer,PPUGenLatch;
88 /* Color deemphasis emulation. Joy... */
90 static int deempcnt[8];
95 void (*GameInterface)(int h);
97 void FP_FASTAPASS(1) (*PPU_hook)(uint32 A);
99 void (*GameStateRestore)(int version);
100 void (*GameHBIRQHook)(void);
102 readfunc ARead[0x10000];
103 writefunc BWrite[0x10000];
104 static readfunc *AReadG;
105 static writefunc *BWriteG;
109 static void asmcpu_update(int32 cycles)
112 timestamp += ((cycles >> 4) * 43) >> 7; // aproximating /= 48
114 // some code from x6502.c
128 if((PSG[0x10]&0x80) && !(PSG[0x10]&0x40))
130 extern uint8 SIRQStat;
132 X6502_IRQBegin(FCEU_IQDPCM);
138 void asmcpu_unpack(void)
140 nes_registers[0] = X.A << 24;
141 nes_registers[1] = X.X;
142 nes_registers[2] = X.Y;
144 nes_registers[3] = X.PC;
146 nes_registers[4] = X.S << 24;
147 nes_registers[4]|= X.IRQlow << 8;
148 nes_registers[7] = (uint32)X.count;
151 nes_registers[4]|= X.P & 0x5d;
152 nes_registers[5] = X.P << 24; // N
153 if (!(X.P&0x02)) nes_registers[5] |= 1; // Z
156 void asmcpu_pack(void)
158 X.A = nes_registers[0] >> 24;
159 X.X = nes_registers[1];
160 X.Y = nes_registers[2];
161 X.PC= nes_registers[3] - pc_base;
162 X.S = nes_registers[4] >> 24;
163 X.IRQlow = nes_registers[4] >> 8;
164 X.count = (int32) nes_registers[7];
167 X.P = nes_registers[4] & 0x5d;
168 if ( nes_registers[5]&0x80000000) X.P |= 0x80; // N
169 if (!(nes_registers[5]&0x000000ff)) X.P |= 0x02; // Z
183 int AllocGenieRW(void)
185 if(!(AReadG=FCEU_malloc(0x8000*sizeof(readfunc))))
187 if(!(BWriteG=FCEU_malloc(0x8000*sizeof(writefunc))))
193 void FlushGenieRW(void)
199 for(x=0;x<0x8000;x++)
201 ARead[x+0x8000]=AReadG[x];
202 BWrite[x+0x8000]=BWriteG[x];
212 readfunc FASTAPASS(1) GetReadHandler(int32 a)
214 if(a>=0x8000 && RWWrap)
215 return AReadG[a-0x8000];
220 void FASTAPASS(3) SetReadHandler(int32 start, int32 end, readfunc func)
228 for(x=end;x>=start;x--)
231 AReadG[x-0x8000]=func;
237 for(x=end;x>=start;x--)
241 writefunc FASTAPASS(1) GetWriteHandler(int32 a)
243 if(RWWrap && a>=0x8000)
244 return BWriteG[a-0x8000];
249 void FASTAPASS(3) SetWriteHandler(int32 start, int32 end, writefunc func)
257 for(x=end;x>=start;x--)
260 BWriteG[x-0x8000]=func;
265 for(x=end;x>=start;x--)
272 uint32 TempAddr,RefreshAddr;
275 /* scanline is equal to the current visible scanline we're on. */
279 uint8 GameMemBlock[131072] __attribute__ ((aligned (4)));
280 uint8 NTARAM[0x800] __attribute__ ((aligned (4)));
281 uint8 PALRAM[0x20] __attribute__ ((aligned (4)));
282 #if !defined(ASM_6502) || defined(DEBUG_ASM_6502)
283 uint8 RAM[0x800] __attribute__ ((aligned (4)));
292 #define MMC5BGVRAMADR(V) &MMC5BGVPage[(V)>>10][(V)]
293 #define VRAMADR(V) &VPage[(V)>>10][(V)]
319 #ifdef DEBUG_ASM_6502
320 if (cpu_repeat) return cpu_lastval;
325 #ifdef DEBUG_ASM_6502
326 // cpu_lastval=ret|(PPUGenLatch&0x1F);
328 return ret|(PPUGenLatch&0x1F);
339 uint32 tmp=RefreshAddr&0x3FFF;
340 #ifdef DEBUG_ASM_6502
341 if (cpu_repeat) return cpu_lastval;
344 PPUGenLatch=ret=VRAMBuffer;
345 if(PPU_hook) PPU_hook(tmp);
348 VRAMBuffer=VPage[tmp>>10][tmp];
352 VRAMBuffer=vnapage[(tmp>>10)&0x3][tmp&0x3FF];
355 if (INC32) RefreshAddr+=32;
357 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
358 #ifdef DEBUG_ASM_6502
378 //printf("$%04x:$%02x, %d\n",X.PC,V,scanline);
404 //printf("$%02x:$%02x\n",PPUSPL,V);
440 TempAddr|=(V&0x3f)<<8;
446 RefreshAddr=TempAddr;
449 PPU_hook(RefreshAddr);
456 uint32 tmp=RefreshAddr&0x3FFF;
463 PALRAM[0x00]=PALRAM[0x04]=PALRAM[0x08]=PALRAM[0x0C]=
464 PALRAM[0x10]=PALRAM[0x14]=PALRAM[0x18]=PALRAM[0x1c]=V&0x3f;
465 else if(tmp&3) PALRAM[(tmp&0x1f)]=V&0x3f;
469 if(PPUCHRRAM&(1<<(tmp>>10)))
470 VPage[tmp>>10][tmp]=V;
474 if(PPUNTARAM&(1<<((tmp&0xF00)>>10)))
475 vnapage[((tmp&0xF00)>>10)][tmp&0x3FF]=V;
477 if (INC32) RefreshAddr+=32;
479 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
487 B2004(0x2004,X.DB=ARead[t+x](t+x));
488 X6502_AddCycles(512);
491 void BGRender(uint8 *target)
494 vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
500 RefreshLine(target-XOffset, vofs);
511 *(uint32 *)target=*(uint32 *)(target+4)=tem;
516 int FSkip_setting=-1; // auto
518 void FCEUI_FrameSkip(int x)
524 /* This is called at the beginning of each visible scanline */
525 static void Loop6502(void)
529 uint8 *target=XBuf+scanline*320+32;
531 if(ScreenON || SpriteON)
533 /* PRefreshLine() will not get called on skipped frames. This
534 could cause a problem, but the solution would be rather complex,
535 due to the current sprite 0 hit code.
543 if(scanline>=FSettings.FirstSLine && scanline<=FSettings.LastSLine)
553 tem=Pal[0]|(Pal[0]<<8)|(Pal[0]<<16)|(Pal[0]<<24);
555 FCEU_dwmemset(target,tem,264);
560 if (SpriteON && scanline)
561 RefreshSprite(target);
569 ((uint32 *)target)[x]=((uint32*)target)[x]&0xF0F0F0F0;
573 ((uint32 *)target)[x]=(((uint32*)target)[x]&0x3f3f3f3f)|0x40404040;
576 ((uint32 *)target)[x]=((uint32*)target)[x]|0xC0C0C0C0;
579 ((uint32 *)target)[x]=((uint32*)target)[x]&0x3f3f3f3f;
580 FCEU_dwmemset(target- 8,0x3f3f3f3f,8);
581 FCEU_dwmemset(target+256,0x3f3f3f3f,8);
588 tem=Pal[0]|(Pal[0]<<8)|(Pal[0]<<16)|(Pal[0]<<24);
589 FCEU_dwmemset(target,tem,256);
591 if(InputScanlineHook)
592 InputScanlineHook(target, scanline);
595 #define PAL(c) ((c)+cc)
598 static void PRefreshLine(void)
604 if (BGAdrHI) vofs = 0x1000;
606 vofs+=(RefreshAddr>>12)&7;
612 zz2=(uint8)((RefreshAddr>>10)&3);
613 PPU_hook(0x2000|(RefreshAddr&0xFFF));
614 no = vnapage[zz2][(RefreshAddr&0x3ff)];
615 PPU_hook((no<<4)+vofs);
616 if((RefreshAddr&0x1f)==0x1f)
623 /* This high-level graphics MMC5 emulation code was written
624 for MMC5 carts in "CL" mode. It's probably not totally
625 correct for carts in "SL" mode.
627 static void RefreshLine_MMC5Hack1(uint8 *P, uint32 vofs)
631 tochange=MMC5HackSPMode&0x1F;
633 for(X1=33;X1;X1--,P+=8)
639 if((tochange<=0 && MMC5HackSPMode&0x40) ||
640 (tochange>0 && !(MMC5HackSPMode&0x40)))
645 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
646 if(ys>=0x1E) ys-=0x1E;
647 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
649 C = MMC5HackVROMPTR+vadr;
650 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
652 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
653 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
658 zz2=(RefreshAddr>>10)&3;
659 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
660 C = MMC5BGVRAMADR(vadr);
661 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
662 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
666 if((RefreshAddr&0x1f)==0x1f)
674 static void RefreshLine_MMC5Hack2(uint8 *P, uint32 vofs)
678 tochange=MMC5HackSPMode&0x1F;
680 for(X1=33;X1;X1--,P+=8)
687 if((tochange<=0 && MMC5HackSPMode&0x40) ||
688 (tochange>0 && !(MMC5HackSPMode&0x40)))
693 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
694 if(ys>=0x1E) ys-=0x1E;
695 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
697 C = MMC5HackVROMPTR+vadr;
698 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
700 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
701 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
706 zz2=(RefreshAddr>>10)&3;
707 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
708 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
709 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
710 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
714 if((RefreshAddr&0x1f)==0x1f)
722 static void RefreshLine_MMC5Hack3(uint8 *P, uint32 vofs)
726 for(X1=33;X1;X1--,P+=8)
734 zz2=(RefreshAddr>>10)&3;
735 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
736 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
737 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
738 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
742 if((RefreshAddr&0x1f)==0x1f)
749 static void RefreshLine_MMC5Hack4(uint8 *P, uint32 vofs)
753 for(X1=33;X1;X1--,P+=8)
760 zz2=(RefreshAddr>>10)&3;
761 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
762 C = MMC5BGVRAMADR(vadr);
763 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
764 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
768 if((RefreshAddr&0x1f)==0x1f)
775 static void RefreshLine_PPU_hook(uint8 *P, uint32 vofs)
779 for(X1=33;X1;X1--,P+=8)
786 zz2=(RefreshAddr>>10)&3;
787 PPU_hook(0x2000|(RefreshAddr&0xFFF));
788 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
789 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
790 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
797 if((RefreshAddr&0x1f)==0x1f)
804 static void RefreshLine_normal(uint8 *P, uint32 vofs) // vofs is 0x107 max
807 uint32 rfraddr = RefreshAddr;
808 uint8 *page = vnapage[(rfraddr>>10)&3];
811 if ((rfraddr&0xc)!=0)
812 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
814 for (X1=33;X1;X1--,P+=8)
819 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
821 if ((rfraddr&0xc)==0)
822 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
823 cc=((cc2 >> ((rfraddr&2) + ((rfraddr&0x40)>>4) + ((rfraddr&0xc)<<1))) & 3) << 2;
827 if((rfraddr&0x1f)==0x1f) {
829 page = vnapage[(rfraddr>>10)&3];
833 RefreshAddr = rfraddr;
836 static void SetRefreshLine(void)
838 if(MMC5Hack && geniestage!=1)
840 if(MMC5HackCHRMode==0 && (MMC5HackSPMode&0x80))
842 if (RefreshLine != RefreshLine_MMC5Hack1) printf("set refr RefreshLine_MMC5Hack1\n");
843 RefreshLine = RefreshLine_MMC5Hack1;
845 else if(MMC5HackCHRMode==1 && (MMC5HackSPMode&0x80))
847 if (RefreshLine != RefreshLine_MMC5Hack2) printf("set refr RefreshLine_MMC5Hack2\n");
848 RefreshLine = RefreshLine_MMC5Hack2;
850 else if(MMC5HackCHRMode==1)
852 if (RefreshLine != RefreshLine_MMC5Hack3) printf("set refr RefreshLine_MMC5Hack3\n");
853 RefreshLine = RefreshLine_MMC5Hack3;
857 if (RefreshLine != RefreshLine_MMC5Hack4) printf("set refr RefreshLine_MMC5Hack4\n");
858 RefreshLine = RefreshLine_MMC5Hack4;
860 } // End if(MMC5Hack)
863 if (RefreshLine != RefreshLine_PPU_hook) printf("set refr RefreshLine_PPU_hook\n");
864 RefreshLine = RefreshLine_PPU_hook;
868 if (RefreshLine != RefreshLine_normal) printf("set refr RefreshLine_normal\n");
869 RefreshLine = RefreshLine_normal;
876 if(ScreenON || SpriteON)
878 uint32 rad=RefreshAddr;
880 rad|=TempAddr&0x041f;
882 //PPU_hook(RefreshAddr,-1);
889 if(ScreenON || SpriteON)
891 uint32 rad=RefreshAddr;
893 if((rad&0x7000)==0x7000)
896 if((rad&0x3E0)==0x3A0)
903 if((rad&0x3E0)==0x3e0)
911 //PPU_hook(RefreshAddr,-1);
917 /* This is called at the beginning of all h-blanks on visible lines. */
919 static void DoHBlank(void)
921 if(ScreenON || SpriteON)
923 if(GameHBIRQHook && (ScreenON || SpriteON))
933 X6502_Run(25); // Tried 65, caused problems with Slalom(maybe others)
938 //fprintf(stderr,"%3d: $%04x\n",scanline,RefreshAddr);
943 // ============================//
945 // ===========================//
947 void ResetMapping(void)
951 SetReadHandler(0x0000,0xFFFF,ANull);
952 SetWriteHandler(0x0000,0xFFFF,BNull);
954 SetReadHandler(0,0x7FF,ARAML);
955 SetWriteHandler(0,0x7FF,BRAML);
957 SetReadHandler(0x800,0x1FFF,ARAMH); /* Part of a little */
958 SetWriteHandler(0x800,0x1FFF,BRAMH); /* hack for a small speed boost. */
960 for(x=0x2000;x<0x4000;x+=8)
980 BWrite[0x4014]=B4014;
990 if(FCEUGameInfo.type!=GIT_NSF)
993 if(FSettings.NetworkPlay) KillNetplay();
995 GameInterface(GI_CLOSE);
1001 void ResetGameLoaded(void)
1003 if(GameLoaded) CloseGame();
1007 GameExpSound.Fill=0;
1008 GameExpSound.RChange=0;
1009 if(GameExpSound.Kill)
1010 GameExpSound.Kill();
1011 GameExpSound.Kill=0;
1017 FCEUGameInfo.name=0;
1018 FCEUGameInfo.type=GIT_CART;
1019 FCEUGameInfo.vidsys=GIV_USER;
1020 FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=-1;
1021 FCEUGameInfo.inputfc=-1;
1024 char lastLoadedGameName [2048];
1026 FCEUGI *FCEUI_LoadGame(char *name)
1035 strncpy(name2, name, sizeof(name2));
1036 name2[sizeof(name2)-1] = 0;
1038 fp=FCEU_fopen(name2,"rb");
1041 FCEU_PrintError("Error opening \"%s\"!",name);
1046 char *p = name2 + strlen(name2) - 4;
1047 if (strcmp(p, ".fcm") == 0)
1050 printf("movie detected\n");
1053 fp=FCEU_fopen(name2,"rb");
1055 printf("no ROM for movie\n");
1062 strcpy(lastLoadedGameName, name2);
1065 if(iNESLoad(name2,fp))
1069 if(FDSLoad(name2,fp))
1071 if(UNIFLoad(name2,fp))
1074 FCEU_PrintError("An error occurred while loading the file.");
1083 if(FCEUGameInfo.type!=GIT_NSF)
1084 if(FSettings.GameGenie)
1089 if(FSettings.NetworkPlay) InitNetplay();
1092 if(FCEUGameInfo.type!=GIT_NSF)
1098 FCEU_ResetPalette();
1102 FCEUI_LoadMovie(name, 1);
1103 return(&FCEUGameInfo);
1107 void FCEU_ResetVidSys(void)
1111 if(FCEUGameInfo.vidsys==GIV_NTSC)
1113 else if(FCEUGameInfo.vidsys==GIV_PAL)
1121 FSettings.FirstSLine=FSettings.UsrFirstSLine[1];
1122 FSettings.LastSLine=FSettings.UsrLastSLine[1];
1127 FSettings.FirstSLine=FSettings.UsrFirstSLine[0];
1128 FSettings.LastSLine=FSettings.UsrLastSLine[0];
1130 printf("PAL = %i\n", PAL);
1131 SetSoundVariables();
1134 int FCEUI_Initialize(void)
1136 if(!InitVirtualVideo())
1138 memset(&FSettings,0,sizeof(FSettings));
1139 FSettings.UsrFirstSLine[0]=8;
1140 FSettings.UsrFirstSLine[1]=0;
1141 FSettings.UsrLastSLine[0]=FSettings.UsrLastSLine[1]=239;
1142 FSettings.SoundVolume=65535; // 100%
1146 #define harko 0xe //0x9
1147 static INLINE void Thingo(void)
1154 X6502_Run(256-harko);
1162 X6502_Run(tosprite);
1164 X6502_Run(256-tosprite-harko);
1170 X6502_Run(256-harko);
1172 X6502_Run(tosprite-(256-harko));
1174 X6502_Run(256-tosprite);
1180 X6502_Run_scanline();
1189 uint32 scanlines_per_frame = PAL ? 312 : 262;
1191 //printf("asdc: %i\n", asdc);
1193 ApplyPeriodicCheats();
1197 PPU[3]=PPUSPL=0; /* Not sure if this is correct. According
1198 to Matt Conte and my own tests, it is. Timing is probably
1199 off, though. NOTE: Not having this here
1200 breaks a Super Donkey Kong game. */
1202 X6502_Run(12); /* I need to figure out the true nature and length
1205 if(FCEUGameInfo.type==GIT_NSF)
1210 X6502_Run(256+85-12);
1211 for(scanline=242+1;scanline<scanlines_per_frame;scanline++)
1219 if(ScreenON || SpriteON)
1227 if(ScreenON || SpriteON)
1229 RefreshAddr=TempAddr;
1230 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
1232 if(FCEUGameInfo.type==GIT_NSF)
1234 X6502_Run((256+85)*240);
1242 for(scanline=0;scanline<240;scanline++)
1247 for(x=1,max=0,maxref=0;x<7;x++)
1256 //FCEU_DispMessage("%2x:%2x:%2x:%2x:%2x:%2x:%2x:%2x %d",deempcnt[0],deempcnt[1],deempcnt[2],deempcnt[3],deempcnt[4],deempcnt[5],deempcnt[6],deempcnt[7],maxref);
1257 //memset(deempcnt,0,sizeof(deempcnt));
1258 SetNESDeemph(maxref,0);
1264 ssize=FlushEmulateSound();
1269 FCEU_PutImageDummy();
1271 FCEUD_Update(0,WaveFinalMono,ssize);
1277 FCEUD_Update(XBuf+8,WaveFinalMono,ssize);
1292 #include <sys/time.h>
1295 void FCEUI_Emulate(void)
1298 uint64 starttime,end;
1301 gettimeofday(&tv,0);
1302 starttime=((uint64)tv.tv_sec*1000000)+tv.tv_usec;
1307 // Probably won't work well on Windows port; for
1308 // debugging/speed testing.
1312 gettimeofday(&tv,0);
1313 end=((uint64)tv.tv_sec*1000000)+tv.tv_usec;
1314 w=frcount*10000000000LL/(end-starttime);
1317 printf("Average FPS: %d.%04d\n",i,frac);
1323 void FCEUI_CloseGame(void)
1328 static void ResetPPU(void)
1330 VRAMBuffer=PPU[0]=PPU[1]=PPU[2]=PPU[3]=0;
1333 RefreshAddr=TempAddr=0;
1337 static void PowerPPU(void)
1339 memset(NTARAM,0x00,0x800);
1340 memset(PALRAM,0x00,0x20);
1341 memset(SPRAM,0x00,0x100);
1347 if(!GameLoaded || (FCEUGameInfo.type==GIT_NSF)) return;
1348 GameInterface(GI_RESETM2);
1356 if(!GameLoaded) return;
1358 FCEU_CheatResetRAM();
1359 FCEU_CheatAddRAM(2,0,RAM);
1363 memset(RAM,0x00,0x800);
1365 GameInterface(GI_POWER);