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
55 extern int cpu_repeat;
56 extern int cpu_lastval;
59 static void (*RefreshLine)(uint8 *P, uint32 vofs) = NULL;
60 static void PRefreshLine(void);
62 static void ResetPPU(void);
63 static void PowerPPU(void);
65 uint64 timestampbase=0;
68 uint32 MMC5HackVROMMask;
69 uint8 *MMC5HackExNTARAMPtr;
70 uint8 *MMC5HackVROMPTR;
71 uint8 MMC5HackCHRMode=0;
73 uint8 MMC5HackSPScroll;
76 uint8 *MMC5SPRVPage[8];
77 uint8 *MMC5BGVPage[8];
80 uint8 VRAMBuffer,PPUGenLatch;
86 /* Color deemphasis emulation. Joy... */
88 static int deempcnt[8];
93 void (*GameInterface)(int h);
95 void FP_FASTAPASS(1) (*PPU_hook)(uint32 A);
97 void (*GameStateRestore)(int version);
98 void (*GameHBIRQHook)(void);
100 readfunc ARead[0x10000];
101 writefunc BWrite[0x10000];
102 static readfunc *AReadG;
103 static writefunc *BWriteG;
107 static void asmcpu_update(int32 cycles)
110 timestamp += ((cycles >> 4) * 43) >> 7; // aproximating /= 48
112 // some code from x6502.c
126 if((PSG[0x10]&0x80) && !(PSG[0x10]&0x40))
128 extern uint8 SIRQStat;
130 X6502_IRQBegin(FCEU_IQDPCM);
136 void asmcpu_unpack(void)
138 nes_registers[0] = X.A << 24;
139 nes_registers[1] = X.X;
140 nes_registers[2] = X.Y;
142 nes_registers[3] = X.PC;
144 nes_registers[4] = X.S << 24;
145 nes_registers[4]|= X.IRQlow << 8;
146 nes_registers[7] = (uint32)X.count;
149 nes_registers[4]|= X.P & 0x5d;
150 nes_registers[5] = X.P << 24; // N
151 if (!(X.P&0x02)) nes_registers[5] |= 1; // Z
154 void asmcpu_pack(void)
156 X.A = nes_registers[0] >> 24;
157 X.X = nes_registers[1];
158 X.Y = nes_registers[2];
159 X.PC= nes_registers[3] - pc_base;
160 X.S = nes_registers[4] >> 24;
161 X.IRQlow = nes_registers[4] >> 8;
162 X.count = (int32) nes_registers[7];
165 X.P = nes_registers[4] & 0x5d;
166 if ( nes_registers[5]&0x80000000) X.P |= 0x80; // N
167 if (!(nes_registers[5]&0x000000ff)) X.P |= 0x02; // Z
181 int AllocGenieRW(void)
183 if(!(AReadG=FCEU_malloc(0x8000*sizeof(readfunc))))
185 if(!(BWriteG=FCEU_malloc(0x8000*sizeof(writefunc))))
191 void FlushGenieRW(void)
197 for(x=0;x<0x8000;x++)
199 ARead[x+0x8000]=AReadG[x];
200 BWrite[x+0x8000]=BWriteG[x];
210 readfunc FASTAPASS(1) GetReadHandler(int32 a)
212 if(a>=0x8000 && RWWrap)
213 return AReadG[a-0x8000];
218 void FASTAPASS(3) SetReadHandler(int32 start, int32 end, readfunc func)
226 for(x=end;x>=start;x--)
229 AReadG[x-0x8000]=func;
235 for(x=end;x>=start;x--)
239 writefunc FASTAPASS(1) GetWriteHandler(int32 a)
241 if(RWWrap && a>=0x8000)
242 return BWriteG[a-0x8000];
247 void FASTAPASS(3) SetWriteHandler(int32 start, int32 end, writefunc func)
255 for(x=end;x>=start;x--)
258 BWriteG[x-0x8000]=func;
263 for(x=end;x>=start;x--)
270 uint32 TempAddr,RefreshAddr;
273 /* scanline is equal to the current visible scanline we're on. */
277 uint8 GameMemBlock[131072] __attribute__ ((aligned (4)));
278 uint8 NTARAM[0x800] __attribute__ ((aligned (4)));
279 uint8 PALRAM[0x20] __attribute__ ((aligned (4)));
280 #if !defined(ASM_6502) || defined(DEBUG_ASM_6502)
281 uint8 RAM[0x800] __attribute__ ((aligned (4)));
290 #define MMC5BGVRAMADR(V) &MMC5BGVPage[(V)>>10][(V)]
291 #define VRAMADR(V) &VPage[(V)>>10][(V)]
317 #ifdef DEBUG_ASM_6502
318 if (cpu_repeat) return cpu_lastval;
323 #ifdef DEBUG_ASM_6502
324 cpu_lastval=ret|(PPUGenLatch&0x1F);
326 return ret|(PPUGenLatch&0x1F);
337 uint32 tmp=RefreshAddr&0x3FFF;
338 #ifdef DEBUG_ASM_6502
339 if (cpu_repeat) return cpu_lastval;
342 PPUGenLatch=ret=VRAMBuffer;
343 if(PPU_hook) PPU_hook(tmp);
346 VRAMBuffer=VPage[tmp>>10][tmp];
350 VRAMBuffer=vnapage[(tmp>>10)&0x3][tmp&0x3FF];
353 if (INC32) RefreshAddr+=32;
355 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
356 #ifdef DEBUG_ASM_6502
376 //printf("$%04x:$%02x, %d\n",X.PC,V,scanline);
402 //printf("$%02x:$%02x\n",PPUSPL,V);
438 TempAddr|=(V&0x3f)<<8;
444 RefreshAddr=TempAddr;
447 PPU_hook(RefreshAddr);
454 uint32 tmp=RefreshAddr&0x3FFF;
461 PALRAM[0x00]=PALRAM[0x04]=PALRAM[0x08]=PALRAM[0x0C]=
462 PALRAM[0x10]=PALRAM[0x14]=PALRAM[0x18]=PALRAM[0x1c]=V&0x3f;
463 else if(tmp&3) PALRAM[(tmp&0x1f)]=V&0x3f;
467 if(PPUCHRRAM&(1<<(tmp>>10)))
468 VPage[tmp>>10][tmp]=V;
472 if(PPUNTARAM&(1<<((tmp&0xF00)>>10)))
473 vnapage[((tmp&0xF00)>>10)][tmp&0x3FF]=V;
475 if (INC32) RefreshAddr+=32;
477 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
484 #ifdef DEBUG_ASM_6502
485 if (cpu_repeat) { X6502_AddCycles_a(512); return; }
487 B2004(0x2004,X.DB=ARead[t+x](t+x));
488 X6502_AddCycles_c(512);
491 B2004(0x2004,X.DB=ARead[t+x](t+x));
492 X6502_AddCycles(512);
496 void BGRender(uint8 *target)
499 vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
505 RefreshLine(target-XOffset, vofs);
516 *(uint32 *)target=*(uint32 *)(target+4)=tem;
521 int FSkip_setting=-1; // auto
523 void FCEUI_FrameSkip(int x)
529 /* This is called at the beginning of each visible scanline */
530 static void Loop6502(void)
534 uint8 *target=XBuf+scanline*320+32;
536 if(ScreenON || SpriteON)
538 /* PRefreshLine() will not get called on skipped frames. This
539 could cause a problem, but the solution would be rather complex,
540 due to the current sprite 0 hit code.
548 if(scanline>=FSettings.FirstSLine && scanline<=FSettings.LastSLine)
558 tem=Pal[0]|(Pal[0]<<8)|(Pal[0]<<16)|(Pal[0]<<24);
560 FCEU_dwmemset(target,tem,264);
565 if (SpriteON && scanline)
566 RefreshSprite(target);
574 ((uint32 *)target)[x]=((uint32*)target)[x]&0xF0F0F0F0;
578 ((uint32 *)target)[x]=(((uint32*)target)[x]&0x3f3f3f3f)|0x40404040;
581 ((uint32 *)target)[x]=((uint32*)target)[x]|0xC0C0C0C0;
584 ((uint32 *)target)[x]=((uint32*)target)[x]&0x3f3f3f3f;
585 FCEU_dwmemset(target- 8,0x3f3f3f3f,8);
586 FCEU_dwmemset(target+256,0x3f3f3f3f,8);
593 tem=Pal[0]|(Pal[0]<<8)|(Pal[0]<<16)|(Pal[0]<<24);
594 FCEU_dwmemset(target,tem,256);
596 if(InputScanlineHook)
597 InputScanlineHook(target, scanline);
600 #define PAL(c) ((c)+cc)
603 static void PRefreshLine(void)
609 if (BGAdrHI) vofs = 0x1000;
611 vofs+=(RefreshAddr>>12)&7;
617 zz2=(uint8)((RefreshAddr>>10)&3);
618 PPU_hook(0x2000|(RefreshAddr&0xFFF));
619 no = vnapage[zz2][(RefreshAddr&0x3ff)];
620 PPU_hook((no<<4)+vofs);
621 if((RefreshAddr&0x1f)==0x1f)
628 /* This high-level graphics MMC5 emulation code was written
629 for MMC5 carts in "CL" mode. It's probably not totally
630 correct for carts in "SL" mode.
632 static void RefreshLine_MMC5Hack1(uint8 *P, uint32 vofs)
636 tochange=MMC5HackSPMode&0x1F;
638 for(X1=33;X1;X1--,P+=8)
644 if((tochange<=0 && MMC5HackSPMode&0x40) ||
645 (tochange>0 && !(MMC5HackSPMode&0x40)))
650 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
651 if(ys>=0x1E) ys-=0x1E;
652 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
654 C = MMC5HackVROMPTR+vadr;
655 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
657 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
658 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
663 zz2=(RefreshAddr>>10)&3;
664 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
665 C = MMC5BGVRAMADR(vadr);
666 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
667 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
671 if((RefreshAddr&0x1f)==0x1f)
679 static void RefreshLine_MMC5Hack2(uint8 *P, uint32 vofs)
683 tochange=MMC5HackSPMode&0x1F;
685 for(X1=33;X1;X1--,P+=8)
692 if((tochange<=0 && MMC5HackSPMode&0x40) ||
693 (tochange>0 && !(MMC5HackSPMode&0x40)))
698 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
699 if(ys>=0x1E) ys-=0x1E;
700 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
702 C = MMC5HackVROMPTR+vadr;
703 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
705 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
706 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
711 zz2=(RefreshAddr>>10)&3;
712 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
713 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
714 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
715 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
719 if((RefreshAddr&0x1f)==0x1f)
727 static void RefreshLine_MMC5Hack3(uint8 *P, uint32 vofs)
731 for(X1=33;X1;X1--,P+=8)
739 zz2=(RefreshAddr>>10)&3;
740 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
741 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
742 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
743 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
747 if((RefreshAddr&0x1f)==0x1f)
754 static void RefreshLine_MMC5Hack4(uint8 *P, uint32 vofs)
758 for(X1=33;X1;X1--,P+=8)
765 zz2=(RefreshAddr>>10)&3;
766 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
767 C = MMC5BGVRAMADR(vadr);
768 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
769 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
773 if((RefreshAddr&0x1f)==0x1f)
780 static void RefreshLine_PPU_hook(uint8 *P, uint32 vofs)
784 for(X1=33;X1;X1--,P+=8)
791 zz2=(RefreshAddr>>10)&3;
792 PPU_hook(0x2000|(RefreshAddr&0xFFF));
793 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
794 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
795 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
802 if((RefreshAddr&0x1f)==0x1f)
809 static void RefreshLine_normal(uint8 *P, uint32 vofs) // vofs is 0x107 max
812 uint32 rfraddr = RefreshAddr;
813 uint8 *page = vnapage[(rfraddr>>10)&3];
816 if ((rfraddr&0xc)!=0)
817 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
819 for (X1=33;X1;X1--,P+=8)
824 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
826 if ((rfraddr&0xc)==0)
827 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
828 cc=((cc2 >> ((rfraddr&2) + ((rfraddr&0x40)>>4) + ((rfraddr&0xc)<<1))) & 3) << 2;
832 if((rfraddr&0x1f)==0x1f) {
834 page = vnapage[(rfraddr>>10)&3];
838 RefreshAddr = rfraddr;
841 static void SetRefreshLine(void)
843 if(MMC5Hack && geniestage!=1)
845 if(MMC5HackCHRMode==0 && (MMC5HackSPMode&0x80))
847 if (RefreshLine != RefreshLine_MMC5Hack1) printf("set refr RefreshLine_MMC5Hack1\n");
848 RefreshLine = RefreshLine_MMC5Hack1;
850 else if(MMC5HackCHRMode==1 && (MMC5HackSPMode&0x80))
852 if (RefreshLine != RefreshLine_MMC5Hack2) printf("set refr RefreshLine_MMC5Hack2\n");
853 RefreshLine = RefreshLine_MMC5Hack2;
855 else if(MMC5HackCHRMode==1)
857 if (RefreshLine != RefreshLine_MMC5Hack3) printf("set refr RefreshLine_MMC5Hack3\n");
858 RefreshLine = RefreshLine_MMC5Hack3;
862 if (RefreshLine != RefreshLine_MMC5Hack4) printf("set refr RefreshLine_MMC5Hack4\n");
863 RefreshLine = RefreshLine_MMC5Hack4;
865 } // End if(MMC5Hack)
868 if (RefreshLine != RefreshLine_PPU_hook) printf("set refr RefreshLine_PPU_hook\n");
869 RefreshLine = RefreshLine_PPU_hook;
873 if (RefreshLine != RefreshLine_normal) printf("set refr RefreshLine_normal\n");
874 RefreshLine = RefreshLine_normal;
881 if(ScreenON || SpriteON)
883 uint32 rad=RefreshAddr;
885 rad|=TempAddr&0x041f;
887 //PPU_hook(RefreshAddr,-1);
894 if(ScreenON || SpriteON)
896 uint32 rad=RefreshAddr;
898 if((rad&0x7000)==0x7000)
901 if((rad&0x3E0)==0x3A0)
908 if((rad&0x3E0)==0x3e0)
916 //PPU_hook(RefreshAddr,-1);
922 /* This is called at the beginning of all h-blanks on visible lines. */
924 static void DoHBlank(void)
926 if(ScreenON || SpriteON)
928 if(GameHBIRQHook && (ScreenON || SpriteON))
938 X6502_Run(25); // Tried 65, caused problems with Slalom(maybe others)
943 //fprintf(stderr,"%3d: $%04x\n",scanline,RefreshAddr);
948 // ============================//
950 // ===========================//
952 void ResetMapping(void)
956 SetReadHandler(0x0000,0xFFFF,ANull);
957 SetWriteHandler(0x0000,0xFFFF,BNull);
959 SetReadHandler(0,0x7FF,ARAML);
960 SetWriteHandler(0,0x7FF,BRAML);
962 SetReadHandler(0x800,0x1FFF,ARAMH); /* Part of a little */
963 SetWriteHandler(0x800,0x1FFF,BRAMH); /* hack for a small speed boost. */
965 for(x=0x2000;x<0x4000;x+=8)
985 BWrite[0x4014]=B4014;
995 if(FCEUGameInfo.type!=GIT_NSF)
998 if(FSettings.NetworkPlay) KillNetplay();
1000 GameInterface(GI_CLOSE);
1006 void ResetGameLoaded(void)
1008 if(GameLoaded) CloseGame();
1012 GameExpSound.Fill=0;
1013 GameExpSound.RChange=0;
1014 if(GameExpSound.Kill)
1015 GameExpSound.Kill();
1016 GameExpSound.Kill=0;
1022 FCEUGameInfo.name=0;
1023 FCEUGameInfo.type=GIT_CART;
1024 FCEUGameInfo.vidsys=GIV_USER;
1025 FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=-1;
1026 FCEUGameInfo.inputfc=-1;
1029 FCEUGI *FCEUI_LoadGame(char *name)
1036 fp=FCEU_fopen(name,"rb");
1039 FCEU_PrintError("Error opening \"%s\"!",name);
1044 if(iNESLoad(name,fp))
1048 if(FDSLoad(name,fp))
1050 if(UNIFLoad(name,fp))
1053 FCEU_PrintError("An error occurred while loading the file.");
1062 if(FCEUGameInfo.type!=GIT_NSF)
1063 if(FSettings.GameGenie)
1068 if(FSettings.NetworkPlay) InitNetplay();
1071 if(FCEUGameInfo.type!=GIT_NSF)
1077 FCEU_ResetPalette();
1079 return(&FCEUGameInfo);
1083 void FCEU_ResetVidSys(void)
1087 if(FCEUGameInfo.vidsys==GIV_NTSC)
1089 else if(FCEUGameInfo.vidsys==GIV_PAL)
1097 FSettings.FirstSLine=FSettings.UsrFirstSLine[1];
1098 FSettings.LastSLine=FSettings.UsrLastSLine[1];
1103 FSettings.FirstSLine=FSettings.UsrFirstSLine[0];
1104 FSettings.LastSLine=FSettings.UsrLastSLine[0];
1106 printf("PAL = %i\n", PAL);
1107 SetSoundVariables();
1110 int FCEUI_Initialize(void)
1112 if(!InitVirtualVideo())
1114 memset(&FSettings,0,sizeof(FSettings));
1115 FSettings.UsrFirstSLine[0]=8;
1116 FSettings.UsrFirstSLine[1]=0;
1117 FSettings.UsrLastSLine[0]=FSettings.UsrLastSLine[1]=239;
1118 FSettings.SoundVolume=65535; // 100%
1122 #define harko 0xe //0x9
1123 static INLINE void Thingo(void)
1130 X6502_Run(256-harko);
1138 X6502_Run(tosprite);
1140 X6502_Run(256-tosprite-harko);
1146 X6502_Run(256-harko);
1148 X6502_Run(tosprite-(256-harko));
1150 X6502_Run(256-tosprite);
1156 X6502_Run_scanline();
1165 uint32 scanlines_per_frame = PAL ? 312 : 262;
1167 //printf("asdc: %i\n", asdc);
1169 ApplyPeriodicCheats();
1173 PPU[3]=PPUSPL=0; /* Not sure if this is correct. According
1174 to Matt Conte and my own tests, it is. Timing is probably
1175 off, though. NOTE: Not having this here
1176 breaks a Super Donkey Kong game. */
1178 X6502_Run(12); /* I need to figure out the true nature and length
1181 if(FCEUGameInfo.type==GIT_NSF)
1186 X6502_Run(256+85-12);
1187 for(scanline=242+1;scanline<scanlines_per_frame;scanline++)
1195 if(ScreenON || SpriteON)
1203 if(ScreenON || SpriteON)
1205 RefreshAddr=TempAddr;
1206 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
1208 if(FCEUGameInfo.type==GIT_NSF)
1210 X6502_Run((256+85)*240);
1218 for(scanline=0;scanline<240;scanline++)
1223 for(x=1,max=0,maxref=0;x<7;x++)
1232 //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);
1233 //memset(deempcnt,0,sizeof(deempcnt));
1234 SetNESDeemph(maxref,0);
1240 ssize=FlushEmulateSound();
1245 FCEU_PutImageDummy();
1247 FCEUD_Update(0,WaveFinalMono,ssize);
1253 FCEUD_Update(XBuf+8,WaveFinalMono,ssize);
1268 #include <sys/time.h>
1271 void FCEUI_Emulate(void)
1274 uint64 starttime,end;
1277 gettimeofday(&tv,0);
1278 starttime=((uint64)tv.tv_sec*1000000)+tv.tv_usec;
1283 // Probably won't work well on Windows port; for
1284 // debugging/speed testing.
1288 gettimeofday(&tv,0);
1289 end=((uint64)tv.tv_sec*1000000)+tv.tv_usec;
1290 w=frcount*10000000000LL/(end-starttime);
1293 printf("Average FPS: %d.%04d\n",i,frac);
1299 void FCEUI_CloseGame(void)
1304 static void ResetPPU(void)
1306 VRAMBuffer=PPU[0]=PPU[1]=PPU[2]=PPU[3]=0;
1309 RefreshAddr=TempAddr=0;
1313 static void PowerPPU(void)
1315 memset(NTARAM,0x00,0x800);
1316 memset(PALRAM,0x00,0x20);
1317 memset(SPRAM,0x00,0x100);
1323 if(!GameLoaded || (FCEUGameInfo.type==GIT_NSF)) return;
1324 GameInterface(GI_RESETM2);
1332 if(!GameLoaded) return;
1334 FCEU_CheatResetRAM();
1335 FCEU_CheatAddRAM(2,0,RAM);
1339 printf("X.DB offs: %02x\n", (int)&X.DB - (int)&X);
1341 memset(RAM,0x00,0x800);
1343 GameInterface(GI_POWER);