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c62d2810 1/* FCE Ultra - NES/Famicom Emulator
2 *
3 * Copyright notice for this file:
15300263 4 * Copyright (C) 1998 BERO
c62d2810 5 * Copyright (C) 2002 Ben Parnell
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22#include <string.h>
23#include <stdio.h>
24#include <stdlib.h>
25
26#include "types.h"
27#include "x6502.h"
28#include "fce.h"
29#include "sound.h"
30#include "svga.h"
31#include "netplay.h"
32#include "general.h"
33#include "endian.h"
34#include "version.h"
35#include "memory.h"
36
37#include "cart.h"
38#include "nsf.h"
39#include "fds.h"
40#include "ines.h"
41#include "unif.h"
42#include "cheat.h"
43
44#include "state.h"
45#include "video.h"
46#include "input.h"
47#include "file.h"
48#include "crc32.h"
5232c20c 49#include "ppu.h"
c62d2810 50
92764e62 51#include "palette.h"
5a2aa426 52#include "movie.h"
53
4fdfab07 54#include "dprintf.h"
55
6587f346 56#ifdef GP2X
57#include "drivers/gp2x/asmutils.h"
58#endif
59
c62d2810 60#define Pal (PALRAM)
61
5232c20c 62
4a1bf31b 63static void (*RefreshLine)(uint8 *P, uint32 vofs) = NULL;
c62d2810 64static void PRefreshLine(void);
5232c20c 65
c62d2810 66static void ResetPPU(void);
67static void PowerPPU(void);
68
69uint64 timestampbase=0;
70
4fdfab07 71static int ppudead=1;
72static int kook=0;
73
c62d2810 74int MMC5Hack;
75uint32 MMC5HackVROMMask;
76uint8 *MMC5HackExNTARAMPtr;
77uint8 *MMC5HackVROMPTR;
15300263 78uint8 MMC5HackCHRMode=0;
c62d2810 79uint8 MMC5HackSPMode;
80uint8 MMC5HackSPScroll;
81uint8 MMC5HackSPPage;
82
83uint8 *MMC5SPRVPage[8];
84uint8 *MMC5BGVPage[8];
85
86
87uint8 VRAMBuffer,PPUGenLatch;
88
89uint8 *vnapage[4];
90uint8 PPUNTARAM;
91uint8 PPUCHRRAM;
92
93/* Color deemphasis emulation. Joy... */
94static uint8 deemp=0;
95static int deempcnt[8];
96
5232c20c 97int tosprite=256;
c62d2810 98
99FCEUGI FCEUGameInfo;
100void (*GameInterface)(int h);
101
102void FP_FASTAPASS(1) (*PPU_hook)(uint32 A);
103
104void (*GameStateRestore)(int version);
d97315ac 105void (*GameHBIRQHook)(void), (*GameHBIRQHook2)(void);
c62d2810 106
107readfunc ARead[0x10000];
108writefunc BWrite[0x10000];
109static readfunc *AReadG;
110static writefunc *BWriteG;
111static int RWWrap=0;
112
92e249b1 113#ifdef ASM_6502
114static void asmcpu_update(int32 cycles)
115{
92e249b1 116 // some code from x6502.c
117 fhcnt-=cycles;
118 if(fhcnt<=0)
119 {
120 FrameSoundUpdate();
121 fhcnt+=fhinc;
122 }
123
124 if(PCMIRQCount>0)
125 {
126 PCMIRQCount-=cycles;
127 if(PCMIRQCount<=0)
128 {
129 vdis=1;
130 if((PSG[0x10]&0x80) && !(PSG[0x10]&0x40))
131 {
132 extern uint8 SIRQStat;
133 SIRQStat|=0x80;
134 X6502_IRQBegin(FCEU_IQDPCM);
135 }
136 }
137 }
138}
139
140void asmcpu_unpack(void)
141{
142 nes_registers[0] = X.A << 24;
143 nes_registers[1] = X.X;
144 nes_registers[2] = X.Y;
145 pc_base = 0;
146 nes_registers[3] = X.PC;
c0bf6f9f 147 X6502_Rebase_a();
92e249b1 148 nes_registers[4] = X.S << 24;
149 nes_registers[4]|= X.IRQlow << 8;
8fa5eb33 150 nes_registers[7] = (uint32)X.count << 16;
92e249b1 151
152 // NVUB DIZC
153 nes_registers[4]|= X.P & 0x5d;
154 nes_registers[5] = X.P << 24; // N
155 if (!(X.P&0x02)) nes_registers[5] |= 1; // Z
156}
157
158void asmcpu_pack(void)
159{
160 X.A = nes_registers[0] >> 24;
161 X.X = nes_registers[1];
162 X.Y = nes_registers[2];
163 X.PC= nes_registers[3] - pc_base;
164 X.S = nes_registers[4] >> 24;
165 X.IRQlow = nes_registers[4] >> 8;
8fa5eb33 166 X.count = (int32) nes_registers[7] >> 16;
92e249b1 167
168 // NVUB DIZC
169 X.P = nes_registers[4] & 0x5d;
170 if ( nes_registers[5]&0x80000000) X.P |= 0x80; // N
171 if (!(nes_registers[5]&0x000000ff)) X.P |= 0x02; // Z
172}
173#endif
174
c62d2810 175DECLFW(BNull)
176{
177
178}
179
180DECLFR(ANull)
181{
182 return(X.DB);
183}
184
185int AllocGenieRW(void)
186{
187 if(!(AReadG=FCEU_malloc(0x8000*sizeof(readfunc))))
188 return 0;
189 if(!(BWriteG=FCEU_malloc(0x8000*sizeof(writefunc))))
190 return 0;
191 RWWrap=1;
192 return 1;
193}
194
195void FlushGenieRW(void)
196{
197 int32 x;
198
199 if(RWWrap)
200 {
201 for(x=0;x<0x8000;x++)
202 {
203 ARead[x+0x8000]=AReadG[x];
204 BWrite[x+0x8000]=BWriteG[x];
205 }
b8da43fb 206#ifdef ASM_6502
207 GenieSetPages(1);
208#endif
c62d2810 209 free(AReadG);
210 free(BWriteG);
211 AReadG=0;
212 BWriteG=0;
213 RWWrap=0;
214 }
215}
216
217readfunc FASTAPASS(1) GetReadHandler(int32 a)
218{
219 if(a>=0x8000 && RWWrap)
220 return AReadG[a-0x8000];
221 else
222 return ARead[a];
223}
224
225void FASTAPASS(3) SetReadHandler(int32 start, int32 end, readfunc func)
226{
227 int32 x;
228
229 if(!func)
230 func=ANull;
231
232 if(RWWrap)
233 for(x=end;x>=start;x--)
234 {
235 if(x>=0x8000)
236 AReadG[x-0x8000]=func;
237 else
238 ARead[x]=func;
239 }
240 else
241
242 for(x=end;x>=start;x--)
243 ARead[x]=func;
244}
245
246writefunc FASTAPASS(1) GetWriteHandler(int32 a)
247{
248 if(RWWrap && a>=0x8000)
249 return BWriteG[a-0x8000];
250 else
251 return BWrite[a];
252}
253
254void FASTAPASS(3) SetWriteHandler(int32 start, int32 end, writefunc func)
255{
256 int32 x;
257
258 if(!func)
259 func=BNull;
260
261 if(RWWrap)
262 for(x=end;x>=start;x--)
263 {
264 if(x>=0x8000)
265 BWriteG[x-0x8000]=func;
266 else
267 BWrite[x]=func;
268 }
269 else
270 for(x=end;x>=start;x--)
271 BWrite[x]=func;
272}
273
274uint8 vtoggle=0;
275uint8 XOffset=0;
276
277uint32 TempAddr,RefreshAddr;
278
c62d2810 279
280/* scanline is equal to the current visible scanline we're on. */
281
282int scanline;
c62d2810 283
9115e7d2 284uint8 GameMemBlock[131072] __attribute__ ((aligned (4)));
285uint8 NTARAM[0x800] __attribute__ ((aligned (4)));
286uint8 PALRAM[0x20] __attribute__ ((aligned (4)));
92e249b1 287#if !defined(ASM_6502) || defined(DEBUG_ASM_6502)
9115e7d2 288uint8 RAM[0x800] __attribute__ ((aligned (4)));
af32b6c2 289#endif
9115e7d2 290
c62d2810 291uint8 PPU[4];
292uint8 PPUSPL;
293
c62d2810 294uint8 PAL=0;
295
5232c20c 296
c62d2810 297#define MMC5BGVRAMADR(V) &MMC5BGVPage[(V)>>10][(V)]
298#define VRAMADR(V) &VPage[(V)>>10][(V)]
15300263 299
4fdfab07 300static int linestartts;
301static int tofix=0;
302
303static void ResetRL(void)
304{
305 linestartts=timestamp*48+X6502_GetCycleCount();
306 tofix=1;
307}
308
309static INLINE void Fixit1(void);
310
311static void TryFixit1(void)
312{
313 #define TOFIXNUM (272-0x4)
314 int lastpixel;
315
316 if (scanline < 240 && tofix)
317 {
318 lastpixel = (timestamp*48-linestartts)>>4;
319 if (PAL) lastpixel += lastpixel>>4;
320
321 //printf("lastpixel: %i\n", lastpixel);
322
323 if(lastpixel>=TOFIXNUM)
324 {
325 Fixit1();
326 tofix=0;
327 }
328 }
329}
330
331
c62d2810 332static DECLFW(BRAML)
15300263 333{
c62d2810 334 RAM[A]=V;
335}
336
337static DECLFW(BRAMH)
338{
339 RAM[A&0x7FF]=V;
340}
341
342static DECLFR(ARAML)
343{
344 return RAM[A];
345}
346
347static DECLFR(ARAMH)
348{
349 return RAM[A&0x7FF];
350}
351
15300263 352
c62d2810 353static DECLFR(A2002)
354{
4fdfab07 355 /* merged */
c62d2810 356 uint8 ret;
4fdfab07 357
358 TryFixit1();
c62d2810 359 ret = PPU_status;
4fdfab07 360 ret|=PPUGenLatch&0x1F;
c62d2810 361 vtoggle=0;
362 PPU_status&=0x7F;
4fdfab07 363 PPUGenLatch=ret;
ea80a45b 364 //dprintf("r [2002] %02x",ret);
4fdfab07 365 return ret;
c62d2810 366}
367
368static DECLFR(A200x)
369{
4fdfab07 370 /* merged */
371 TryFixit1();
c62d2810 372 return PPUGenLatch;
373}
374
375static DECLFR(A2007)
376{
4fdfab07 377 /* merged */
c62d2810 378 uint8 ret;
379 uint32 tmp=RefreshAddr&0x3FFF;
380
4fdfab07 381 TryFixit1();
382
383 ret=VRAMBuffer;
384
c62d2810 385 if(PPU_hook) PPU_hook(tmp);
4fdfab07 386 PPUGenLatch=VRAMBuffer;
15300263 387 if(tmp<0x2000)
c62d2810 388 {
389 VRAMBuffer=VPage[tmp>>10][tmp];
390 }
15300263 391 else
c62d2810 392 {
393 VRAMBuffer=vnapage[(tmp>>10)&0x3][tmp&0x3FF];
394 }
395
396 if (INC32) RefreshAddr+=32;
397 else RefreshAddr++;
398 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
4fdfab07 399 dprintf("r [2007] %02x",ret);
c62d2810 400 return ret;
401}
402
403static DECLFW(B2000)
404{
4fdfab07 405 /* NMI2? */
406 TryFixit1();
c62d2810 407 PPUGenLatch=V;
408 PPU[0]=V;
409 TempAddr&=0xF3FF;
410 TempAddr|=(V&3)<<10;
411}
412
413static DECLFW(B2001)
414{
4fdfab07 415 /* merged */
416 TryFixit1();
c62d2810 417 PPUGenLatch=V;
418 PPU[1]=V;
419 if(V&0xE0)
420 deemp=V>>5;
421 //printf("$%04x:$%02x, %d\n",X.PC,V,scanline);
422}
423
424static DECLFW(B2002)
425{
4fdfab07 426 /* merged */
c62d2810 427 PPUGenLatch=V;
428}
429
430static DECLFW(B2003)
431{
4fdfab07 432 /* merged */
c62d2810 433 PPUGenLatch=V;
434 PPU[3]=V;
435 PPUSPL=V&0x7;
436}
437
438static DECLFW(B2004)
439{
4fdfab07 440 /* merged */
c62d2810 441 PPUGenLatch=V;
4fdfab07 442 if(PPUSPL>=8)
c62d2810 443 {
444 if(PPU[3]>=8)
445 SPRAM[PPU[3]]=V;
446 }
447 else
448 {
449 //printf("$%02x:$%02x\n",PPUSPL,V);
450 SPRAM[PPUSPL]=V;
c62d2810 451 }
452 PPU[3]++;
4fdfab07 453 PPUSPL++;
5232c20c 454
c62d2810 455}
456
457static DECLFW(B2005)
458{
4fdfab07 459 /* merged */
c62d2810 460 uint32 tmp=TempAddr;
4fdfab07 461 TryFixit1();
c62d2810 462 PPUGenLatch=V;
463 if (!vtoggle)
464 {
465 tmp&=0xFFE0;
466 tmp|=V>>3;
467 XOffset=V&7;
468 }
469 else
470 {
471 tmp&=0x8C1F;
472 tmp|=((V&~0x7)<<2);
473 tmp|=(V&7)<<12;
474 }
475
476 TempAddr=tmp;
477 vtoggle^=1;
478}
479
480static DECLFW(B2006)
481{
4fdfab07 482 /* merged */
483 TryFixit1();
484
c62d2810 485 PPUGenLatch=V;
486 if(!vtoggle)
487 {
488 TempAddr&=0x00FF;
489 TempAddr|=(V&0x3f)<<8;
490 }
491 else
492 {
493 TempAddr&=0xFF00;
494 TempAddr|=V;
c62d2810 495
4fdfab07 496 RefreshAddr=TempAddr;
c62d2810 497 if(PPU_hook)
498 PPU_hook(RefreshAddr);
499 }
500 vtoggle^=1;
501}
502
503static DECLFW(B2007)
15300263 504{
4fdfab07 505 /* merged */
c62d2810 506 uint32 tmp=RefreshAddr&0x3FFF;
c62d2810 507 PPUGenLatch=V;
508 if(tmp>=0x3F00)
509 {
4fdfab07 510 // hmmm....
511 if(!(tmp&0xf))
512 PALRAM[0x00]=PALRAM[0x04]=PALRAM[0x08]=PALRAM[0x0C]=V&0x3f;
513 else if(tmp&3) PALRAM[(tmp&0x1f)]=V&0x3f;
c62d2810 514 }
515 else if(tmp<0x2000)
516 {
517 if(PPUCHRRAM&(1<<(tmp>>10)))
518 VPage[tmp>>10][tmp]=V;
519 }
520 else
15300263 521 {
c62d2810 522 if(PPUNTARAM&(1<<((tmp&0xF00)>>10)))
523 vnapage[((tmp&0xF00)>>10)][tmp&0x3FF]=V;
524 }
525 if (INC32) RefreshAddr+=32;
526 else RefreshAddr++;
527 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
528}
529
530static DECLFW(B4014)
15300263 531{
c62d2810 532 uint32 t=V<<8;
533 int x;
4fdfab07 534
c62d2810 535 for(x=0;x<256;x++)
536 B2004(0x2004,X.DB=ARead[t+x](t+x));
537 X6502_AddCycles(512);
538}
539
5232c20c 540void BGRender(uint8 *target)
c62d2810 541{
4a1bf31b 542 uint32 tem, vofs;
543 vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
544
545 Pal[0]|=64;
546 Pal[4]|=64;
547 Pal[8]|=64;
548 Pal[0xC]|=64;
549 RefreshLine(target-XOffset, vofs);
550 Pal[0]&=63;
551 Pal[4]&=63;
552 Pal[8]&=63;
553 Pal[0xC]&=63;
554
c62d2810 555 if(!(PPU[1]&2))
556 {
9115e7d2 557 tem=Pal[0]|0x40;
558 tem|=tem<<8;
559 tem|=tem<<16;
c62d2810 560 *(uint32 *)target=*(uint32 *)(target+4)=tem;
561 }
562}
563
564#ifdef FRAMESKIP
5232c20c 565int FSkip=0;
c62d2810 566void FCEUI_FrameSkip(int x)
567{
568 FSkip=x;
569}
570#endif
571
572/* This is called at the beginning of each visible scanline */
573static void Loop6502(void)
574{
575 uint32 tem;
576 int x;
937bf65b 577 uint8 *target=XBuf+scanline*320+32;
c62d2810 578
579 if(ScreenON || SpriteON)
580 {
581 /* PRefreshLine() will not get called on skipped frames. This
582 could cause a problem, but the solution would be rather complex,
583 due to the current sprite 0 hit code.
584 */
585 #ifdef FRAMESKIP
586 if(!FSkip)
587 {
588 #endif
589 if(ScreenON)
590 {
0b65fdb3 591 if(scanline>=FSettings.FirstSLine && scanline<=FSettings.LastSLine)
c62d2810 592 BGRender(target);
593 else
594 {
595 if(PPU_hook)
596 PRefreshLine();
597 }
598 }
599 else
600 {
601 tem=Pal[0]|(Pal[0]<<8)|(Pal[0]<<16)|(Pal[0]<<24);
602 tem|=0x40404040;
603 FCEU_dwmemset(target,tem,264);
604 }
605 #ifdef FRAMESKIP
606 }
607 #endif
608 if (SpriteON && scanline)
609 RefreshSprite(target);
610 #ifdef FRAMESKIP
611 if(!FSkip)
612 {
613 #endif
614 if(PPU[1]&0x01)
15300263 615 {
c62d2810 616 for(x=63;x>=0;x--)
937bf65b 617 ((uint32 *)target)[x]=((uint32*)target)[x]&0xF0F0F0F0;
c62d2810 618 }
6587f346 619#ifdef GP2X
620 if((PPU[1]>>5)==0x7) block_or(target, 256, 0xc0);
621 else if(PPU[1]&0xE0) block_andor(target, 256, 0x3f, 0x40);
622 else block_andor(target, 256, 0x3f, 0x80);
623#else
c62d2810 624 if((PPU[1]>>5)==0x7)
625 for(x=63;x>=0;x--)
6587f346 626 ((uint32 *)target)[x]=(((uint32*)target)[x])|0xc0c0c0c0;
c62d2810 627 else if(PPU[1]&0xE0)
628 for(x=63;x>=0;x--)
6587f346 629 ((uint32 *)target)[x]=(((uint32*)target)[x]&0x3f3f3f3f)|0x40404040;
c62d2810 630 else
631 for(x=63;x>=0;x--)
6587f346 632 ((uint32 *)target)[x]=(((uint32*)target)[x]&0x3f3f3f3f)|0x80808080;
633#endif
634 // black borders
635 ((uint32 *)target)[-2]=((uint32 *)target)[-1]=0;
636 ((uint32 *)target)[64]=((uint32 *)target)[65]=0;
c62d2810 637 #ifdef FRAMESKIP
638 }
639 #endif
640 }
641 else
642 {
643 tem=Pal[0]|(Pal[0]<<8)|(Pal[0]<<16)|(Pal[0]<<24);
644 FCEU_dwmemset(target,tem,256);
15300263 645 }
c62d2810 646 if(InputScanlineHook)
647 InputScanlineHook(target, scanline);
648}
649
650#define PAL(c) ((c)+cc)
651
652
653static void PRefreshLine(void)
654{
655 uint32 vofs;
656 uint8 X1;
657
658 vofs = 0;
659 if (BGAdrHI) vofs = 0x1000;
660
661 vofs+=(RefreshAddr>>12)&7;
662
663 for(X1=33;X1;X1--)
664 {
665 register uint8 no;
666 register uint8 zz2;
667 zz2=(uint8)((RefreshAddr>>10)&3);
668 PPU_hook(0x2000|(RefreshAddr&0xFFF));
669 no = vnapage[zz2][(RefreshAddr&0x3ff)];
670 PPU_hook((no<<4)+vofs);
671 if((RefreshAddr&0x1f)==0x1f)
672 RefreshAddr^=0x41F;
673 else
674 RefreshAddr++;
675 }
676}
677
4a1bf31b 678/* This high-level graphics MMC5 emulation code was written
679 for MMC5 carts in "CL" mode. It's probably not totally
680 correct for carts in "SL" mode.
681 */
682static void RefreshLine_MMC5Hack1(uint8 *P, uint32 vofs)
c62d2810 683{
4a1bf31b 684 int8 tochange, X1;
c62d2810 685
686 tochange=MMC5HackSPMode&0x1F;
687
688 for(X1=33;X1;X1--,P+=8)
689 {
690 uint8 *C;
5232c20c 691 uint8 cc,zz,zz2;
c62d2810 692 uint32 vadr;
693
15300263 694 if((tochange<=0 && MMC5HackSPMode&0x40) ||
c62d2810 695 (tochange>0 && !(MMC5HackSPMode&0x40)))
696 {
697 uint8 xs,ys;
698
15300263 699 xs=33-X1;
c62d2810 700 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
701 if(ys>=0x1E) ys-=0x1E;
702 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
703
704 C = MMC5HackVROMPTR+vadr;
705 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
706
707 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
708 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
709 }
710 else
711 {
712 zz=RefreshAddr&0x1F;
713 zz2=(RefreshAddr>>10)&3;
714 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
715 C = MMC5BGVRAMADR(vadr);
716 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
717 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
718 }
719 #include "fceline.h"
720
721 if((RefreshAddr&0x1f)==0x1f)
722 RefreshAddr^=0x41F;
723 else
724 RefreshAddr++;
725 tochange--;
726 }
4a1bf31b 727}
728
729static void RefreshLine_MMC5Hack2(uint8 *P, uint32 vofs)
730{
731 int8 tochange, X1;
c62d2810 732
733 tochange=MMC5HackSPMode&0x1F;
734
735 for(X1=33;X1;X1--,P+=8)
736 {
737 uint8 *C;
5232c20c 738 uint8 cc;
739 uint8 zz2;
c62d2810 740 uint32 vadr;
741
742 if((tochange<=0 && MMC5HackSPMode&0x40) ||
743 (tochange>0 && !(MMC5HackSPMode&0x40)))
744 {
745 uint8 xs,ys;
746
15300263 747 xs=33-X1;
c62d2810 748 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
749 if(ys>=0x1E) ys-=0x1E;
750 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
751
752 C = MMC5HackVROMPTR+vadr;
753 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
754
755 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
756 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
757 }
758 else
759 {
760 C=MMC5HackVROMPTR;
761 zz2=(RefreshAddr>>10)&3;
762 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
763 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
764 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
765 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
766 cc = vadr;
767 }
768 #include "fceline.h"
769 if((RefreshAddr&0x1f)==0x1f)
770 RefreshAddr^=0x41F;
771 else
772 RefreshAddr++;
773 tochange--;
774 }
4a1bf31b 775}
776
777static void RefreshLine_MMC5Hack3(uint8 *P, uint32 vofs)
778{
779 int8 X1;
c62d2810 780
c62d2810 781 for(X1=33;X1;X1--,P+=8)
782 {
15300263 783 uint8 *C;
5232c20c 784 uint8 cc;
785 uint8 zz2;
15300263 786 uint32 vadr;
c62d2810 787
788 C=MMC5HackVROMPTR;
789 zz2=(RefreshAddr>>10)&3;
790 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
15300263 791 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
c62d2810 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 }
4a1bf31b 802}
803
804static void RefreshLine_MMC5Hack4(uint8 *P, uint32 vofs)
805{
806 int8 X1;
807
c62d2810 808 for(X1=33;X1;X1--,P+=8)
809 {
810 uint8 *C;
5232c20c 811 uint8 cc,zz,zz2;
c62d2810 812 uint32 vadr;
813
814 zz=RefreshAddr&0x1F;
815 zz2=(RefreshAddr>>10)&3;
816 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
817 C = MMC5BGVRAMADR(vadr);
818 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
819 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
820
821 #include "fceline.h"
15300263 822
c62d2810 823 if((RefreshAddr&0x1f)==0x1f)
824 RefreshAddr^=0x41F;
825 else
826 RefreshAddr++;
15300263 827 }
4a1bf31b 828}
829
830static void RefreshLine_PPU_hook(uint8 *P, uint32 vofs)
831{
832 int8 X1;
c62d2810 833
c62d2810 834 for(X1=33;X1;X1--,P+=8)
835 {
15300263 836 uint8 *C;
5232c20c 837 uint8 cc,zz,zz2;
15300263 838 uint32 vadr;
c62d2810 839
840 zz=RefreshAddr&0x1F;
841 zz2=(RefreshAddr>>10)&3;
842 PPU_hook(0x2000|(RefreshAddr&0xFFF));
843 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
844 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
845 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
846 C = VRAMADR(vadr);
847
848 #include "fceline.h"
849
850 PPU_hook(vadr);
851
852 if((RefreshAddr&0x1f)==0x1f)
853 RefreshAddr^=0x41F;
854 else
855 RefreshAddr++;
856 }
4a1bf31b 857}
858
9115e7d2 859static void RefreshLine_normal(uint8 *P, uint32 vofs) // vofs is 0x107 max
4a1bf31b 860{
861 int8 X1;
9115e7d2 862 uint32 rfraddr = RefreshAddr;
863 uint8 *page = vnapage[(rfraddr>>10)&3];
864 uint32 cc2=0;
4a1bf31b 865
9115e7d2 866 if ((rfraddr&0xc)!=0)
867 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
868
869 for (X1=33;X1;X1--,P+=8)
c62d2810 870 {
9115e7d2 871 uint8 cc,*C;
c62d2810 872 uint32 vadr;
873
9115e7d2 874 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
c62d2810 875 C = VRAMADR(vadr);
9115e7d2 876 if ((rfraddr&0xc)==0)
877 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
878 cc=((cc2 >> ((rfraddr&2) + ((rfraddr&0x40)>>4) + ((rfraddr&0xc)<<1))) & 3) << 2;
4a1bf31b 879
9115e7d2 880 #include "fceline.h"
15300263 881
9115e7d2 882 if((rfraddr&0x1f)==0x1f) {
883 rfraddr^=0x41F;
884 page = vnapage[(rfraddr>>10)&3];
885 } else
886 rfraddr++;
c62d2810 887 }
9115e7d2 888 RefreshAddr = rfraddr;
4a1bf31b 889}
c62d2810 890
4a1bf31b 891static void SetRefreshLine(void)
892{
893 if(MMC5Hack && geniestage!=1)
894 {
895 if(MMC5HackCHRMode==0 && (MMC5HackSPMode&0x80))
896 {
897 if (RefreshLine != RefreshLine_MMC5Hack1) printf("set refr RefreshLine_MMC5Hack1\n");
898 RefreshLine = RefreshLine_MMC5Hack1;
899 }
900 else if(MMC5HackCHRMode==1 && (MMC5HackSPMode&0x80))
901 {
902 if (RefreshLine != RefreshLine_MMC5Hack2) printf("set refr RefreshLine_MMC5Hack2\n");
903 RefreshLine = RefreshLine_MMC5Hack2;
904 }
905 else if(MMC5HackCHRMode==1)
906 {
907 if (RefreshLine != RefreshLine_MMC5Hack3) printf("set refr RefreshLine_MMC5Hack3\n");
908 RefreshLine = RefreshLine_MMC5Hack3;
909 }
910 else
911 {
912 if (RefreshLine != RefreshLine_MMC5Hack4) printf("set refr RefreshLine_MMC5Hack4\n");
913 RefreshLine = RefreshLine_MMC5Hack4;
914 }
915 } // End if(MMC5Hack)
916 else if(PPU_hook)
917 {
918 if (RefreshLine != RefreshLine_PPU_hook) printf("set refr RefreshLine_PPU_hook\n");
919 RefreshLine = RefreshLine_PPU_hook;
920 }
921 else
922 {
923 if (RefreshLine != RefreshLine_normal) printf("set refr RefreshLine_normal\n");
924 RefreshLine = RefreshLine_normal;
925 }
c62d2810 926}
927
4fdfab07 928static INLINE
937bf65b 929void Fixit2(void)
c62d2810 930{
931 if(ScreenON || SpriteON)
932 {
933 uint32 rad=RefreshAddr;
934 rad&=0xFBE0;
935 rad|=TempAddr&0x041f;
936 RefreshAddr=rad;
937 //PPU_hook(RefreshAddr,-1);
938 }
939}
940
4fdfab07 941static INLINE
937bf65b 942void Fixit1(void)
c62d2810 943{
944 if(ScreenON || SpriteON)
945 {
946 uint32 rad=RefreshAddr;
947
948 if((rad&0x7000)==0x7000)
949 {
950 rad^=0x7000;
951 if((rad&0x3E0)==0x3A0)
952 {
953 rad^=0x3A0;
954 rad^=0x800;
955 }
956 else
957 {
958 if((rad&0x3E0)==0x3e0)
959 rad^=0x3e0;
960 else rad+=0x20;
961 }
962 }
963 else
964 rad+=0x1000;
965 RefreshAddr=rad;
966 //PPU_hook(RefreshAddr,-1);
967 }
968}
969
937bf65b 970
c62d2810 971/* This is called at the beginning of all h-blanks on visible lines. */
972static void DoHBlank(void)
973{
974 if(ScreenON || SpriteON)
975 FetchSpriteData();
ea80a45b 976 if(GameHBIRQHook && (ScreenON || SpriteON) && ((PPU[0]&0x38)!=0x18))
c62d2810 977 {
4fdfab07 978 X6502_Run(6);
c62d2810 979 Fixit2();
4fdfab07 980 X6502_Run(4);
981 GameHBIRQHook();
982 X6502_Run(85-16-10);
c62d2810 983 }
984 else
985 {
4fdfab07 986 X6502_Run(6); // Tried 65, caused problems with Slalom(maybe others)
c62d2810 987 Fixit2();
4fdfab07 988 X6502_Run(85-6-16);
c62d2810 989 }
d97315ac 990 if(GameHBIRQHook2 && (ScreenON || SpriteON))
991 GameHBIRQHook2();
c62d2810 992 //PPU_hook(0,-1);
993 //fprintf(stderr,"%3d: $%04x\n",scanline,RefreshAddr);
4fdfab07 994 scanline++;
ea80a45b 995 if (scanline<240)
996 ResetRL();
4fdfab07 997 X6502_Run(16);
c62d2810 998}
c62d2810 999
c62d2810 1000
5232c20c 1001// ============================//
1002// end of new code
1003// ===========================//
c62d2810 1004
1005void ResetMapping(void)
1006{
1007 int x;
1008
1009 SetReadHandler(0x0000,0xFFFF,ANull);
1010 SetWriteHandler(0x0000,0xFFFF,BNull);
1011
1012 SetReadHandler(0,0x7FF,ARAML);
1013 SetWriteHandler(0,0x7FF,BRAML);
1014
1015 SetReadHandler(0x800,0x1FFF,ARAMH); /* Part of a little */
1016 SetWriteHandler(0x800,0x1FFF,BRAMH); /* hack for a small speed boost. */
1017
1018 for(x=0x2000;x<0x4000;x+=8)
1019 {
1020 ARead[x]=A200x;
1021 BWrite[x]=B2000;
1022 ARead[x+1]=A200x;
1023 BWrite[x+1]=B2001;
1024 ARead[x+2]=A2002;
1025 BWrite[x+2]=B2002;
1026 ARead[x+3]=A200x;
1027 BWrite[x+3]=B2003;
1028 ARead[x+4]=A200x;
1029 BWrite[x+4]=B2004;
1030 ARead[x+5]=A200x;
1031 BWrite[x+5]=B2005;
1032 ARead[x+6]=A200x;
1033 BWrite[x+6]=B2006;
1034 ARead[x+7]=A2007;
1035 BWrite[x+7]=B2007;
1036 }
1037
1038 BWrite[0x4014]=B4014;
1039 SetNESSoundMap();
1040 InitializeInput();
1041}
1042
1043int GameLoaded=0;
1044void CloseGame(void)
1045{
1046 if(GameLoaded)
1047 {
1048 if(FCEUGameInfo.type!=GIT_NSF)
92764e62 1049 FCEU_FlushGameCheats(0,0);
c62d2810 1050 #ifdef NETWORK
1051 if(FSettings.NetworkPlay) KillNetplay();
15300263 1052 #endif
c62d2810 1053 GameInterface(GI_CLOSE);
1054 CloseGenie();
1055 GameLoaded=0;
1056 }
1057}
1058
1059void ResetGameLoaded(void)
1060{
1061 if(GameLoaded) CloseGame();
1062 GameStateRestore=0;
1063 PPU_hook=0;
d97315ac 1064 GameHBIRQHook=GameHBIRQHook2=0;
c62d2810 1065 GameExpSound.Fill=0;
1066 GameExpSound.RChange=0;
1067 if(GameExpSound.Kill)
1068 GameExpSound.Kill();
1069 GameExpSound.Kill=0;
1070 MapIRQHook=0;
1071 MMC5Hack=0;
1072 PAL&=1;
1073 pale=0;
1074
1075 FCEUGameInfo.name=0;
1076 FCEUGameInfo.type=GIT_CART;
1077 FCEUGameInfo.vidsys=GIV_USER;
1078 FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=-1;
1079 FCEUGameInfo.inputfc=-1;
1080}
1081
5a2aa426 1082char lastLoadedGameName [2048];
989672f4 1083int LoadGameLastError = 0;
d97315ac 1084int UNIFLoad(const char *name, int fp);
1085int iNESLoad(const char *name, int fp);
1086int FDSLoad(const char *name, int fp);
1087int NSFLoad(int fp);
5a2aa426 1088
c62d2810 1089FCEUGI *FCEUI_LoadGame(char *name)
1090{
5a2aa426 1091 char name2[512];
1092 int have_movie = 0;
c62d2810 1093 int fp;
1094
b2b95d2e 1095 //Exit=1;
989672f4 1096 LoadGameLastError = 0;
c62d2810 1097 ResetGameLoaded();
1098
5a2aa426 1099 strncpy(name2, name, sizeof(name2));
1100 name2[sizeof(name2)-1] = 0;
1101
1102 fp=FCEU_fopen(name2,"rb");
c62d2810 1103 if(!fp)
1104 {
1105 FCEU_PrintError("Error opening \"%s\"!",name);
989672f4 1106 LoadGameLastError = 1;
c62d2810 1107 return 0;
1108 }
1109
5a2aa426 1110 {
1111 char *p = name2 + strlen(name2) - 4;
1112 if (strcmp(p, ".fcm") == 0)
1113 {
1114 // movie detected
1115 printf("movie detected\n");
1116 FCEU_fclose(fp);
1117 *p = 0;
1118 fp=FCEU_fopen(name2,"rb");
b2b95d2e 1119 if (!fp && p - name2 > 2) p[-2] = 0;
1120 fp=FCEU_fopen(name2,"rb");
5a2aa426 1121 if (!fp) {
1122 printf("no ROM for movie\n");
989672f4 1123 LoadGameLastError = 2;
5a2aa426 1124 return 0;
1125 }
1126 have_movie = 1;
1127 }
1128 }
1129
5a2aa426 1130 GetFileBase(name2);
1131 if(iNESLoad(name2,fp))
c62d2810 1132 goto endlseq;
1133 if(NSFLoad(fp))
1134 goto endlseq;
5a2aa426 1135 if(FDSLoad(name2,fp))
c62d2810 1136 goto endlseq;
5a2aa426 1137 if(UNIFLoad(name2,fp))
c62d2810 1138 goto endlseq;
1139
1140 FCEU_PrintError("An error occurred while loading the file.");
1141 FCEU_fclose(fp);
989672f4 1142 // format handlers may set LoadGameLastError themselves.
1143 if (LoadGameLastError == 0) LoadGameLastError = 3;
c62d2810 1144 return 0;
1145
1146 endlseq:
1147 FCEU_fclose(fp);
15300263 1148 GameLoaded=1;
c62d2810 1149
1150 FCEU_ResetVidSys();
1151 if(FCEUGameInfo.type!=GIT_NSF)
1152 if(FSettings.GameGenie)
1153 OpenGenie();
1154
1155 PowerNES();
1156 #ifdef NETWORK
1157 if(FSettings.NetworkPlay) InitNetplay();
1158 #endif
1159 SaveStateRefresh();
1160 if(FCEUGameInfo.type!=GIT_NSF)
1161 {
92764e62 1162 FCEU_LoadGamePalette();
1163 FCEU_LoadGameCheats(0);
c62d2810 1164 }
15300263 1165
c62d2810 1166 FCEU_ResetPalette();
1167 Exit=0;
5a2aa426 1168
1169 if (have_movie)
1170 FCEUI_LoadMovie(name, 1);
989672f4 1171
1172 strcpy(lastLoadedGameName, name2);
1173
c62d2810 1174 return(&FCEUGameInfo);
1175}
1176
1177
1178void FCEU_ResetVidSys(void)
1179{
1180 int w;
1181
1182 if(FCEUGameInfo.vidsys==GIV_NTSC)
1183 w=0;
1184 else if(FCEUGameInfo.vidsys==GIV_PAL)
1185 w=1;
1186 else
1187 w=FSettings.PAL;
1188
1189 if(w)
1190 {
1191 PAL=1;
c62d2810 1192 FSettings.FirstSLine=FSettings.UsrFirstSLine[1];
1193 FSettings.LastSLine=FSettings.UsrLastSLine[1];
1194 }
1195 else
1196 {
1197 PAL=0;
c62d2810 1198 FSettings.FirstSLine=FSettings.UsrFirstSLine[0];
1199 FSettings.LastSLine=FSettings.UsrLastSLine[0];
1200 }
0b65fdb3 1201 printf("ResetVidSys: PAL = %i\n", PAL);
c62d2810 1202 SetSoundVariables();
1203}
1204
1205int FCEUI_Initialize(void)
1206{
1207 if(!InitVirtualVideo())
1208 return 0;
1209 memset(&FSettings,0,sizeof(FSettings));
1210 FSettings.UsrFirstSLine[0]=8;
1211 FSettings.UsrFirstSLine[1]=0;
1212 FSettings.UsrLastSLine[0]=FSettings.UsrLastSLine[1]=239;
92764e62 1213 FSettings.SoundVolume=100;
c62d2810 1214 return 1;
1215}
1216
ea80a45b 1217void MMC5_hb(int); /* Ugh ugh ugh. */
c62d2810 1218static INLINE void Thingo(void)
1219{
1220 Loop6502();
1221
ea80a45b 1222 if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
1223
4fdfab07 1224 // check: Battletoads & Double Dragon
c62d2810 1225 if(tosprite>=256)
15300263 1226 {
4fdfab07 1227 X6502_Run(256);
c62d2810 1228 }
1229 else
1230 {
4fdfab07 1231 // sky glitches in SMB1 if done wrong
c62d2810 1232 X6502_Run(tosprite);
1233 PPU[2]|=0x40;
c62d2810 1234 X6502_Run(256-tosprite);
4fdfab07 1235 tosprite = 256;
c62d2810 1236 }
4fdfab07 1237 TryFixit1();
c62d2810 1238 DoHBlank();
1239}
c62d2810 1240
1241void EmLoop(void)
1242{
1243 for(;;)
1244 {
ea80a45b 1245 int x;
92e249b1 1246 uint32 scanlines_per_frame = PAL ? 312 : 262;
4fdfab07 1247 UpdateInput();
92764e62 1248 FCEU_ApplyPeriodicCheats();
4fdfab07 1249
1250 // FCEUPPU_Loop:
1251 if(ppudead) /* Needed for Knight Rider, possibly others. */
1252 {
6587f346 1253 //memset(XBuf, 0, 320*240);
4fdfab07 1254 X6502_Run(scanlines_per_frame*(256+85));
1255 ppudead--;
1256 goto update;
1257 }
ea80a45b 1258
c62d2810 1259 X6502_Run(256+85);
1260
1261 PPU[2]|=0x80;
1262 PPU[3]=PPUSPL=0; /* Not sure if this is correct. According
1263 to Matt Conte and my own tests, it is. Timing is probably
1264 off, though. NOTE: Not having this here
1265 breaks a Super Donkey Kong game. */
1266
1267 X6502_Run(12); /* I need to figure out the true nature and length
15300263 1268 of this delay.
c62d2810 1269 */
1270 if(FCEUGameInfo.type==GIT_NSF)
ea80a45b 1271 DoNSFFrame();
c62d2810 1272 else if(VBlankON)
1273 TriggerNMI();
1274
655f8df0 1275 // Note: this is needed for asm core
1276 // Warning: using 'scanline' var here breaks Castlevania III
1277 {
1278 int lines;
1279 X6502_Run(256+85-12);
1280 for (lines=scanlines_per_frame-242-1;lines;lines--)
1281 X6502_Run(256+85);
1282 }
1283 // X6502_Run((scanlines_per_frame-242)*(256+85)-12);
c62d2810 1284 PPU_status&=0x1f;
c62d2810 1285 X6502_Run(256);
ea80a45b 1286
c62d2810 1287 {
c62d2810 1288 if(ScreenON || SpriteON)
d97315ac 1289 {
c62d2810 1290 if(GameHBIRQHook)
1291 GameHBIRQHook();
ea80a45b 1292 if(PPU_hook)
1293 for(x=0;x<42;x++) {PPU_hook(0x2000); PPU_hook(0);} // ugh
d97315ac 1294 if(GameHBIRQHook2)
1295 GameHBIRQHook2();
1296 }
c62d2810 1297
4fdfab07 1298 X6502_Run(85-16);
c62d2810 1299
4fdfab07 1300 if(ScreenON || SpriteON)
1301 {
1302 RefreshAddr=TempAddr;
1303 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
1304 }
1305 ResetRL();
1306
1307 X6502_Run(16-kook);
1308 kook ^= 1;
c62d2810 1309 }
4fdfab07 1310
c62d2810 1311 if(FCEUGameInfo.type==GIT_NSF)
937bf65b 1312 {
6587f346 1313 // run scanlines for asm core to fuction
13624c8f 1314 for(scanline=0;scanline<240;scanline++)
1315 X6502_Run(256+85);
937bf65b 1316 }
c62d2810 1317 else
1318 {
1319 int x,max,maxref;
1320
1321 deemp=PPU[1]>>5;
4a1bf31b 1322 SetRefreshLine();
4fdfab07 1323 for(scanline=0;scanline<240;) // scanline is incremented in DoLine. Evil. :/
c62d2810 1324 {
1325 deempcnt[deemp]++;
1326 Thingo();
1327 }
ea80a45b 1328 if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
c62d2810 1329 for(x=1,max=0,maxref=0;x<7;x++)
1330 {
1331 if(deempcnt[x]>max)
1332 {
1333 max=deempcnt[x];
1334 maxref=x;
1335 }
1336 deempcnt[x]=0;
1337 }
c62d2810 1338 SetNESDeemph(maxref,0);
1339 }
1340
4fdfab07 1341update:
c62d2810 1342 {
1343 int ssize;
1344
1345 ssize=FlushEmulateSound();
1346
4fdfab07 1347 timestampbase += timestamp;
1348 timestamp = 0;
1349
c62d2810 1350 #ifdef FRAMESKIP
1351 if(FSkip)
1352 {
1353 FCEU_PutImageDummy();
1354 FSkip--;
5232c20c 1355 FCEUD_Update(0,WaveFinalMono,ssize);
c62d2810 1356 }
1357 else
1358 #endif
1359 {
1360 FCEU_PutImage();
5232c20c 1361 FCEUD_Update(XBuf+8,WaveFinalMono,ssize);
c62d2810 1362 }
c62d2810 1363 }
1364
1365 if(Exit)
1366 {
b2b95d2e 1367 //CloseGame();
c62d2810 1368 break;
1369 }
1370
4fdfab07 1371 } // for
c62d2810 1372}
1373
1374#ifdef FPS
1375#include <sys/time.h>
1376uint64 frcount;
1377#endif
1378void FCEUI_Emulate(void)
1379{
1380 #ifdef FPS
1381 uint64 starttime,end;
1382 struct timeval tv;
1383 frcount=0;
1384 gettimeofday(&tv,0);
1385 starttime=((uint64)tv.tv_sec*1000000)+tv.tv_usec;
1386 #endif
1387 EmLoop();
1388
1389 #ifdef FPS
1390 // Probably won't work well on Windows port; for
1391 // debugging/speed testing.
1392 {
1393 uint64 w;
1394 int i,frac;
1395 gettimeofday(&tv,0);
1396 end=((uint64)tv.tv_sec*1000000)+tv.tv_usec;
1397 w=frcount*10000000000LL/(end-starttime);
1398 i=w/10000;
1399 frac=w-i*10000;
1400 printf("Average FPS: %d.%04d\n",i,frac);
1401 }
1402 #endif
1403
1404}
1405
1406void FCEUI_CloseGame(void)
1407{
1408 Exit=1;
1409}
1410
1411static void ResetPPU(void)
1412{
1413 VRAMBuffer=PPU[0]=PPU[1]=PPU[2]=PPU[3]=0;
1414 PPUSPL=0;
1415 PPUGenLatch=0;
1416 RefreshAddr=TempAddr=0;
1417 vtoggle = 0;
4fdfab07 1418 ppudead = 2;
1419 kook = 0;
c62d2810 1420}
1421
1422static void PowerPPU(void)
1423{
1424 memset(NTARAM,0x00,0x800);
1425 memset(PALRAM,0x00,0x20);
1426 memset(SPRAM,0x00,0x100);
1427 ResetPPU();
1428}
1429
1430void ResetNES(void)
1431{
92764e62 1432 if(!GameLoaded) return;
c62d2810 1433 GameInterface(GI_RESETM2);
1434 ResetSound();
1435 ResetPPU();
1436 X6502_Reset();
1437}
1438
b8da43fb 1439static void FCEU_MemoryRand(uint8 *ptr, uint32 size)
1440{
1441 int x=0;
1442 while(size)
1443 {
1444 *ptr=(x&4)?0xFF:0x00;
1445 x++;
1446 size--;
1447 ptr++;
1448 }
1449}
1450
15300263 1451void PowerNES(void)
c62d2810 1452{
1453 if(!GameLoaded) return;
1454
1455 FCEU_CheatResetRAM();
1456 FCEU_CheatAddRAM(2,0,RAM);
1457
1458 GeniePower();
1459
b8da43fb 1460#ifndef DEBUG_ASM_6502
1461 FCEU_MemoryRand(RAM,0x800);
1462#else
c62d2810 1463 memset(RAM,0x00,0x800);
b8da43fb 1464#endif
c62d2810 1465 ResetMapping();
1466 GameInterface(GI_POWER);
1467 PowerSound();
1468 PowerPPU();
1469 timestampbase=0;
b8da43fb 1470#ifdef ASM_6502
1471 if (geniestage)
1472 GenieSetPages(0);
1473#endif
c62d2810 1474 X6502_Power();
1475}
1476
890e37ba 1477
1478/* savestate stuff */
1479uint16 TempAddrT,RefreshAddrT;
1480
1481SFORMAT FCEUPPU_STATEINFO[]={
1482 { NTARAM, 0x800, "NTAR"},
1483 { PALRAM, 0x20, "PRAM"},
1484 { SPRAM, 0x100, "SPRA"},
1485 { PPU, 0x4, "PPUR"},
1486 { &XOffset, 1, "XOFF"},
1487 { &vtoggle, 1, "VTOG"},
1488 { &RefreshAddrT, 2|RLSB, "RADD"},
1489 { &TempAddrT, 2|RLSB, "TADD"},
1490 { &VRAMBuffer, 1, "VBUF"},
1491 { &PPUGenLatch, 1, "PGEN"},
1492 // from 0.98.15
1493 { &kook, 1, "KOOK"},
1494 { &ppudead, 1, "DEAD"},
1495 { &PPUSPL, 1, "PSPL"},
1496 { 0 }
1497 };
1498
1499
ARM optimized FCE Ultra port