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SIG_IGN->SIG_DFL, fixes usb storage mode
[fceu.git] / fce.c
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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
c62d2810 97FCEUGI FCEUGameInfo;
c4980f9e 98void (*GameInterface)(int h, void *param);
c62d2810 99
100void FP_FASTAPASS(1) (*PPU_hook)(uint32 A);
101
102void (*GameStateRestore)(int version);
d97315ac 103void (*GameHBIRQHook)(void), (*GameHBIRQHook2)(void);
c62d2810 104
105readfunc ARead[0x10000];
106writefunc BWrite[0x10000];
107static readfunc *AReadG;
108static writefunc *BWriteG;
109static int RWWrap=0;
110
92e249b1 111#ifdef ASM_6502
112static void asmcpu_update(int32 cycles)
113{
92e249b1 114 // some code from x6502.c
115 fhcnt-=cycles;
116 if(fhcnt<=0)
117 {
118 FrameSoundUpdate();
119 fhcnt+=fhinc;
120 }
121
122 if(PCMIRQCount>0)
123 {
124 PCMIRQCount-=cycles;
125 if(PCMIRQCount<=0)
126 {
127 vdis=1;
128 if((PSG[0x10]&0x80) && !(PSG[0x10]&0x40))
129 {
130 extern uint8 SIRQStat;
131 SIRQStat|=0x80;
132 X6502_IRQBegin(FCEU_IQDPCM);
133 }
134 }
135 }
136}
137
138void asmcpu_unpack(void)
139{
140 nes_registers[0] = X.A << 24;
141 nes_registers[1] = X.X;
142 nes_registers[2] = X.Y;
143 pc_base = 0;
144 nes_registers[3] = X.PC;
c0bf6f9f 145 X6502_Rebase_a();
92e249b1 146 nes_registers[4] = X.S << 24;
147 nes_registers[4]|= X.IRQlow << 8;
8fa5eb33 148 nes_registers[7] = (uint32)X.count << 16;
92e249b1 149
150 // NVUB DIZC
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
154}
155
156void asmcpu_pack(void)
157{
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;
8fa5eb33 164 X.count = (int32) nes_registers[7] >> 16;
92e249b1 165
166 // NVUB DIZC
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
170}
171#endif
172
c62d2810 173DECLFW(BNull)
174{
175
176}
177
178DECLFR(ANull)
179{
180 return(X.DB);
181}
182
183int AllocGenieRW(void)
184{
185 if(!(AReadG=FCEU_malloc(0x8000*sizeof(readfunc))))
186 return 0;
187 if(!(BWriteG=FCEU_malloc(0x8000*sizeof(writefunc))))
188 return 0;
189 RWWrap=1;
190 return 1;
191}
192
193void FlushGenieRW(void)
194{
195 int32 x;
196
197 if(RWWrap)
198 {
199 for(x=0;x<0x8000;x++)
200 {
201 ARead[x+0x8000]=AReadG[x];
202 BWrite[x+0x8000]=BWriteG[x];
203 }
b8da43fb 204#ifdef ASM_6502
205 GenieSetPages(1);
206#endif
c62d2810 207 free(AReadG);
208 free(BWriteG);
209 AReadG=0;
210 BWriteG=0;
211 RWWrap=0;
212 }
213}
214
215readfunc FASTAPASS(1) GetReadHandler(int32 a)
216{
217 if(a>=0x8000 && RWWrap)
218 return AReadG[a-0x8000];
219 else
220 return ARead[a];
221}
222
223void FASTAPASS(3) SetReadHandler(int32 start, int32 end, readfunc func)
224{
225 int32 x;
226
227 if(!func)
228 func=ANull;
229
230 if(RWWrap)
231 for(x=end;x>=start;x--)
232 {
233 if(x>=0x8000)
234 AReadG[x-0x8000]=func;
235 else
236 ARead[x]=func;
237 }
238 else
239
240 for(x=end;x>=start;x--)
241 ARead[x]=func;
242}
243
244writefunc FASTAPASS(1) GetWriteHandler(int32 a)
245{
246 if(RWWrap && a>=0x8000)
247 return BWriteG[a-0x8000];
248 else
249 return BWrite[a];
250}
251
252void FASTAPASS(3) SetWriteHandler(int32 start, int32 end, writefunc func)
253{
254 int32 x;
255
256 if(!func)
257 func=BNull;
258
259 if(RWWrap)
260 for(x=end;x>=start;x--)
261 {
262 if(x>=0x8000)
263 BWriteG[x-0x8000]=func;
264 else
265 BWrite[x]=func;
266 }
267 else
268 for(x=end;x>=start;x--)
269 BWrite[x]=func;
270}
271
272uint8 vtoggle=0;
273uint8 XOffset=0;
274
275uint32 TempAddr,RefreshAddr;
276
c62d2810 277
278/* scanline is equal to the current visible scanline we're on. */
279
280int scanline;
c62d2810 281
9115e7d2 282uint8 GameMemBlock[131072] __attribute__ ((aligned (4)));
283uint8 NTARAM[0x800] __attribute__ ((aligned (4)));
284uint8 PALRAM[0x20] __attribute__ ((aligned (4)));
92e249b1 285#if !defined(ASM_6502) || defined(DEBUG_ASM_6502)
9115e7d2 286uint8 RAM[0x800] __attribute__ ((aligned (4)));
af32b6c2 287#endif
9115e7d2 288
c62d2810 289uint8 PPU[4];
290uint8 PPUSPL;
291
c62d2810 292uint8 PAL=0;
293
5232c20c 294
c62d2810 295#define MMC5BGVRAMADR(V) &MMC5BGVPage[(V)>>10][(V)]
296#define VRAMADR(V) &VPage[(V)>>10][(V)]
15300263 297
4fdfab07 298static int linestartts;
299static int tofix=0;
300
e328100e 301static uint8 *Plinef;
302
303extern uint8 sprlinebuf[256+8];
304extern int32 sphitx;
305extern uint8 sphitdata;
306
307extern int spork; /* spork the world. Any sprites on this line?
308 Then this will be set to 1. Needed for zapper
309 emulation and *gasp* sprite emulation.
310 */
311
312static void ResetRL(uint8 *target)
4fdfab07 313{
e328100e 314 if(InputScanlineHook)
315 InputScanlineHook(0,0,0,0);
316 Plinef=target;
4fdfab07 317 linestartts=timestamp*48+X6502_GetCycleCount();
318 tofix=1;
319}
320
321static INLINE void Fixit1(void);
322
e328100e 323/* faking FCEUPPU_LineUpdate() from later versions of the emu */
324static void FakedLineUpdate(void)
4fdfab07 325{
326 #define TOFIXNUM (272-0x4)
327 int lastpixel;
328
e328100e 329 if (scanline >= 240) return;
330
331 if (tofix || sphitx != 0x100)
4fdfab07 332 {
333 lastpixel = (timestamp*48-linestartts)>>4;
334 if (PAL) lastpixel += lastpixel>>4;
4fdfab07 335 //printf("lastpixel: %i\n", lastpixel);
e328100e 336 }
337
338 if (tofix && lastpixel>=TOFIXNUM)
339 {
340 Fixit1();
341 tofix=0;
342 }
4fdfab07 343
e328100e 344 // CheckSpriteHit()
345 if(sphitx!=0x100)
346 {
347 int l=lastpixel-16;
348 int x;
349
350 for(x=sphitx;x<(sphitx+8) && x<l;x++)
4fdfab07 351 {
e328100e 352 if((sphitdata&(0x80>>(x-sphitx))) && !(Plinef[x]&64))
353 {
354 PPU_status|=0x40;
355 sphitx=0x100;
356 break;
357 }
4fdfab07 358 }
359 }
360}
361
362
c62d2810 363static DECLFW(BRAML)
15300263 364{
c62d2810 365 RAM[A]=V;
366}
367
368static DECLFW(BRAMH)
369{
370 RAM[A&0x7FF]=V;
371}
372
373static DECLFR(ARAML)
374{
375 return RAM[A];
376}
377
378static DECLFR(ARAMH)
379{
380 return RAM[A&0x7FF];
381}
382
15300263 383
c62d2810 384static DECLFR(A2002)
385{
4fdfab07 386 /* merged */
c62d2810 387 uint8 ret;
4fdfab07 388
e328100e 389 FakedLineUpdate();
c62d2810 390 ret = PPU_status;
4fdfab07 391 ret|=PPUGenLatch&0x1F;
c62d2810 392 vtoggle=0;
393 PPU_status&=0x7F;
4fdfab07 394 PPUGenLatch=ret;
ea80a45b 395 //dprintf("r [2002] %02x",ret);
4fdfab07 396 return ret;
c62d2810 397}
398
399static DECLFR(A200x)
400{
4fdfab07 401 /* merged */
e328100e 402 FakedLineUpdate();
c62d2810 403 return PPUGenLatch;
404}
405
406static DECLFR(A2007)
407{
4fdfab07 408 /* merged */
c62d2810 409 uint8 ret;
410 uint32 tmp=RefreshAddr&0x3FFF;
411
e328100e 412 FakedLineUpdate();
4fdfab07 413
414 ret=VRAMBuffer;
415
c62d2810 416 if(PPU_hook) PPU_hook(tmp);
4fdfab07 417 PPUGenLatch=VRAMBuffer;
15300263 418 if(tmp<0x2000)
c62d2810 419 {
420 VRAMBuffer=VPage[tmp>>10][tmp];
421 }
15300263 422 else
c62d2810 423 {
424 VRAMBuffer=vnapage[(tmp>>10)&0x3][tmp&0x3FF];
425 }
426
427 if (INC32) RefreshAddr+=32;
428 else RefreshAddr++;
429 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
4fdfab07 430 dprintf("r [2007] %02x",ret);
c62d2810 431 return ret;
432}
433
434static DECLFW(B2000)
435{
4fdfab07 436 /* NMI2? */
e328100e 437 FakedLineUpdate();
c62d2810 438 PPUGenLatch=V;
439 PPU[0]=V;
440 TempAddr&=0xF3FF;
441 TempAddr|=(V&3)<<10;
442}
443
444static DECLFW(B2001)
445{
4fdfab07 446 /* merged */
e328100e 447 FakedLineUpdate();
c62d2810 448 PPUGenLatch=V;
449 PPU[1]=V;
450 if(V&0xE0)
451 deemp=V>>5;
452 //printf("$%04x:$%02x, %d\n",X.PC,V,scanline);
453}
454
455static DECLFW(B2002)
456{
4fdfab07 457 /* merged */
c62d2810 458 PPUGenLatch=V;
459}
460
461static DECLFW(B2003)
462{
4fdfab07 463 /* merged */
c62d2810 464 PPUGenLatch=V;
465 PPU[3]=V;
466 PPUSPL=V&0x7;
467}
468
469static DECLFW(B2004)
470{
4fdfab07 471 /* merged */
c62d2810 472 PPUGenLatch=V;
4fdfab07 473 if(PPUSPL>=8)
c62d2810 474 {
475 if(PPU[3]>=8)
476 SPRAM[PPU[3]]=V;
477 }
478 else
479 {
480 //printf("$%02x:$%02x\n",PPUSPL,V);
481 SPRAM[PPUSPL]=V;
c62d2810 482 }
483 PPU[3]++;
4fdfab07 484 PPUSPL++;
5232c20c 485
c62d2810 486}
487
488static DECLFW(B2005)
489{
4fdfab07 490 /* merged */
c62d2810 491 uint32 tmp=TempAddr;
e328100e 492 FakedLineUpdate();
c62d2810 493 PPUGenLatch=V;
494 if (!vtoggle)
495 {
496 tmp&=0xFFE0;
497 tmp|=V>>3;
498 XOffset=V&7;
499 }
500 else
501 {
502 tmp&=0x8C1F;
503 tmp|=((V&~0x7)<<2);
504 tmp|=(V&7)<<12;
505 }
506
507 TempAddr=tmp;
508 vtoggle^=1;
509}
510
511static DECLFW(B2006)
512{
4fdfab07 513 /* merged */
e328100e 514 FakedLineUpdate();
4fdfab07 515
c62d2810 516 PPUGenLatch=V;
517 if(!vtoggle)
518 {
519 TempAddr&=0x00FF;
520 TempAddr|=(V&0x3f)<<8;
521 }
522 else
523 {
524 TempAddr&=0xFF00;
525 TempAddr|=V;
c62d2810 526
4fdfab07 527 RefreshAddr=TempAddr;
c62d2810 528 if(PPU_hook)
529 PPU_hook(RefreshAddr);
530 }
531 vtoggle^=1;
532}
533
534static DECLFW(B2007)
15300263 535{
4fdfab07 536 /* merged */
c62d2810 537 uint32 tmp=RefreshAddr&0x3FFF;
c62d2810 538 PPUGenLatch=V;
539 if(tmp>=0x3F00)
540 {
4fdfab07 541 // hmmm....
542 if(!(tmp&0xf))
543 PALRAM[0x00]=PALRAM[0x04]=PALRAM[0x08]=PALRAM[0x0C]=V&0x3f;
544 else if(tmp&3) PALRAM[(tmp&0x1f)]=V&0x3f;
c62d2810 545 }
546 else if(tmp<0x2000)
547 {
548 if(PPUCHRRAM&(1<<(tmp>>10)))
549 VPage[tmp>>10][tmp]=V;
550 }
551 else
15300263 552 {
c62d2810 553 if(PPUNTARAM&(1<<((tmp&0xF00)>>10)))
554 vnapage[((tmp&0xF00)>>10)][tmp&0x3FF]=V;
555 }
556 if (INC32) RefreshAddr+=32;
557 else RefreshAddr++;
558 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
559}
560
561static DECLFW(B4014)
15300263 562{
c62d2810 563 uint32 t=V<<8;
564 int x;
4fdfab07 565
c62d2810 566 for(x=0;x<256;x++)
567 B2004(0x2004,X.DB=ARead[t+x](t+x));
568 X6502_AddCycles(512);
569}
570
5232c20c 571void BGRender(uint8 *target)
c62d2810 572{
4a1bf31b 573 uint32 tem, vofs;
574 vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
575
576 Pal[0]|=64;
577 Pal[4]|=64;
578 Pal[8]|=64;
579 Pal[0xC]|=64;
580 RefreshLine(target-XOffset, vofs);
581 Pal[0]&=63;
582 Pal[4]&=63;
583 Pal[8]&=63;
584 Pal[0xC]&=63;
585
c62d2810 586 if(!(PPU[1]&2))
587 {
9115e7d2 588 tem=Pal[0]|0x40;
589 tem|=tem<<8;
590 tem|=tem<<16;
c62d2810 591 *(uint32 *)target=*(uint32 *)(target+4)=tem;
592 }
593}
594
595#ifdef FRAMESKIP
5232c20c 596int FSkip=0;
c62d2810 597void FCEUI_FrameSkip(int x)
598{
599 FSkip=x;
600}
601#endif
602
603/* This is called at the beginning of each visible scanline */
e328100e 604static void LineUpdate(uint8 *target)
c62d2810 605{
606 uint32 tem;
c62d2810 607
078eb4c0 608 /* PRefreshLine() will not get called on skipped frames. This
609 * could cause a problem, but the solution would be rather complex,
610 * due to the current sprite 0 hit code.
611 */
612 if(FSkip) return;
613
614 if(scanline < FSettings.FirstSLine || scanline > FSettings.LastSLine)
e328100e 615 {
616 if(PPU_hook)
617 PRefreshLine();
618 }
619 else
620 {
621 if(ScreenON)
c62d2810 622 {
21afaa36 623 BGRender(target);
c62d2810 624 }
e328100e 625 else
c62d2810 626 {
e328100e 627 tem=Pal[0]|0x40;
628 tem|=tem << 8;
629 tem|=tem << 16;
630 FCEU_dwmemset(target,tem,256);
c62d2810 631 }
15300263 632 }
e328100e 633
c62d2810 634 if(InputScanlineHook)
e328100e 635 InputScanlineHook(target,spork?sprlinebuf:0,linestartts,256);
636}
637
638
639static void LineUpdateEnd(uint8 *target)
640{
641#ifdef GP2X
642 if(ScreenON || SpriteON) // Yes, very el-cheapo.
643 {
644 if(PPU[1]&0x01)
645 block_and(target, 256, 0x30);
646 }
647 if((PPU[1]>>5)==0x7)
648 block_or(target, 256, 0xc0);
649 else if(PPU[1]&0xE0)
650 block_or(target, 256, 0x40);
651 else
652 block_andor(target, 256, 0x3f, 0x80);
653#else
654 int x;
655
656 if(ScreenON || SpriteON) // Yes, very el-cheapo.
657 {
658 if(PPU[1]&0x01)
659 {
660 for(x=63;x>=0;x--)
661 *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])&0x30303030;
662 }
663 }
664 if((PPU[1]>>5)==0x7)
665 {
666 for(x=63;x>=0;x--)
667 *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0xc0c0c0c0;
668 }
669 else if(PPU[1]&0xE0)
670 for(x=63;x>=0;x--)
671 *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])|0x40404040;
672 else
673 for(x=63;x>=0;x--)
674 *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0x80808080;
675#endif
676
677 // black borders
678 ((uint32 *)target)[-2]=((uint32 *)target)[-1]=0;
679 ((uint32 *)target)[64]=((uint32 *)target)[65]=0;
c62d2810 680}
681
682#define PAL(c) ((c)+cc)
683
684
685static void PRefreshLine(void)
686{
078eb4c0 687 uint32 vofs;
688 int X1;
689 vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
690 void (*PPU_hook_)(uint32 A) = PPU_hook;
c62d2810 691
c62d2810 692
078eb4c0 693 for(X1=33;X1;X1--)
694 {
695 uint32 zz2;
696 uint32 vadr;
697
698 zz2=(RefreshAddr>>10)&3;
699 PPU_hook_(0x2000|(RefreshAddr&0xFFF));
700
701 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
702
703 PPU_hook_(vadr);
c62d2810 704
c62d2810 705 if((RefreshAddr&0x1f)==0x1f)
706 RefreshAddr^=0x41F;
707 else
708 RefreshAddr++;
078eb4c0 709 }
c62d2810 710}
711
4a1bf31b 712/* This high-level graphics MMC5 emulation code was written
713 for MMC5 carts in "CL" mode. It's probably not totally
714 correct for carts in "SL" mode.
715 */
716static void RefreshLine_MMC5Hack1(uint8 *P, uint32 vofs)
c62d2810 717{
4a1bf31b 718 int8 tochange, X1;
c62d2810 719
720 tochange=MMC5HackSPMode&0x1F;
721
722 for(X1=33;X1;X1--,P+=8)
723 {
724 uint8 *C;
5232c20c 725 uint8 cc,zz,zz2;
c62d2810 726 uint32 vadr;
727
15300263 728 if((tochange<=0 && MMC5HackSPMode&0x40) ||
c62d2810 729 (tochange>0 && !(MMC5HackSPMode&0x40)))
730 {
731 uint8 xs,ys;
732
15300263 733 xs=33-X1;
c62d2810 734 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
735 if(ys>=0x1E) ys-=0x1E;
736 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
737
738 C = MMC5HackVROMPTR+vadr;
739 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
740
741 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
742 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
743 }
744 else
745 {
746 zz=RefreshAddr&0x1F;
747 zz2=(RefreshAddr>>10)&3;
748 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
749 C = MMC5BGVRAMADR(vadr);
750 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
751 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
752 }
753 #include "fceline.h"
754
755 if((RefreshAddr&0x1f)==0x1f)
756 RefreshAddr^=0x41F;
757 else
758 RefreshAddr++;
759 tochange--;
760 }
4a1bf31b 761}
762
763static void RefreshLine_MMC5Hack2(uint8 *P, uint32 vofs)
764{
765 int8 tochange, X1;
c62d2810 766
767 tochange=MMC5HackSPMode&0x1F;
768
769 for(X1=33;X1;X1--,P+=8)
770 {
771 uint8 *C;
5232c20c 772 uint8 cc;
773 uint8 zz2;
c62d2810 774 uint32 vadr;
775
776 if((tochange<=0 && MMC5HackSPMode&0x40) ||
777 (tochange>0 && !(MMC5HackSPMode&0x40)))
778 {
779 uint8 xs,ys;
780
15300263 781 xs=33-X1;
c62d2810 782 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
783 if(ys>=0x1E) ys-=0x1E;
784 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
785
786 C = MMC5HackVROMPTR+vadr;
787 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
788
789 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
790 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
791 }
792 else
793 {
794 C=MMC5HackVROMPTR;
795 zz2=(RefreshAddr>>10)&3;
796 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
797 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
798 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
799 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
800 cc = vadr;
801 }
802 #include "fceline.h"
803 if((RefreshAddr&0x1f)==0x1f)
804 RefreshAddr^=0x41F;
805 else
806 RefreshAddr++;
807 tochange--;
808 }
4a1bf31b 809}
810
811static void RefreshLine_MMC5Hack3(uint8 *P, uint32 vofs)
812{
813 int8 X1;
c62d2810 814
c62d2810 815 for(X1=33;X1;X1--,P+=8)
816 {
15300263 817 uint8 *C;
5232c20c 818 uint8 cc;
819 uint8 zz2;
15300263 820 uint32 vadr;
c62d2810 821
822 C=MMC5HackVROMPTR;
823 zz2=(RefreshAddr>>10)&3;
824 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
15300263 825 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
c62d2810 826 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
827 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
828 cc = vadr;
829
830 #include "fceline.h"
831 if((RefreshAddr&0x1f)==0x1f)
832 RefreshAddr^=0x41F;
833 else
834 RefreshAddr++;
835 }
4a1bf31b 836}
837
838static void RefreshLine_MMC5Hack4(uint8 *P, uint32 vofs)
839{
840 int8 X1;
841
c62d2810 842 for(X1=33;X1;X1--,P+=8)
843 {
844 uint8 *C;
5232c20c 845 uint8 cc,zz,zz2;
c62d2810 846 uint32 vadr;
847
848 zz=RefreshAddr&0x1F;
849 zz2=(RefreshAddr>>10)&3;
850 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
851 C = MMC5BGVRAMADR(vadr);
852 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
853 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
854
855 #include "fceline.h"
15300263 856
c62d2810 857 if((RefreshAddr&0x1f)==0x1f)
858 RefreshAddr^=0x41F;
859 else
860 RefreshAddr++;
15300263 861 }
4a1bf31b 862}
863
864static void RefreshLine_PPU_hook(uint8 *P, uint32 vofs)
865{
866 int8 X1;
078eb4c0 867 void (*PPU_hook_)(uint32 A) = PPU_hook;
868 uint32 rfraddr = RefreshAddr;
869 uint8 *page = vnapage[(rfraddr>>10)&3];
c62d2810 870
c62d2810 871 for(X1=33;X1;X1--,P+=8)
872 {
15300263 873 uint8 *C;
078eb4c0 874 uint8 cc,zz;
15300263 875 uint32 vadr;
c62d2810 876
078eb4c0 877 zz=rfraddr&0x1F;
878 PPU_hook_(0x2000|(rfraddr&0xFFF));
879 cc=page[0x3c0+(zz>>2)+((rfraddr&0x380)>>4)];
880 cc=((cc >> ((zz&2) + ((rfraddr&0x40)>>4))) &3) <<2;
881 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
c62d2810 882 C = VRAMADR(vadr);
883
884 #include "fceline.h"
885
078eb4c0 886 PPU_hook_(vadr);
c62d2810 887
078eb4c0 888 if((rfraddr&0x1f)==0x1f) {
889 rfraddr^=0x41F;
890 page = vnapage[(rfraddr>>10)&3];
891 } else
892 rfraddr++;
c62d2810 893 }
078eb4c0 894 RefreshAddr = rfraddr;
4a1bf31b 895}
896
9115e7d2 897static void RefreshLine_normal(uint8 *P, uint32 vofs) // vofs is 0x107 max
4a1bf31b 898{
899 int8 X1;
9115e7d2 900 uint32 rfraddr = RefreshAddr;
901 uint8 *page = vnapage[(rfraddr>>10)&3];
902 uint32 cc2=0;
4a1bf31b 903
9115e7d2 904 if ((rfraddr&0xc)!=0)
905 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
906
907 for (X1=33;X1;X1--,P+=8)
c62d2810 908 {
9115e7d2 909 uint8 cc,*C;
c62d2810 910 uint32 vadr;
911
9115e7d2 912 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
c62d2810 913 C = VRAMADR(vadr);
9115e7d2 914 if ((rfraddr&0xc)==0)
915 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
916 cc=((cc2 >> ((rfraddr&2) + ((rfraddr&0x40)>>4) + ((rfraddr&0xc)<<1))) & 3) << 2;
4a1bf31b 917
9115e7d2 918 #include "fceline.h"
15300263 919
9115e7d2 920 if((rfraddr&0x1f)==0x1f) {
921 rfraddr^=0x41F;
922 page = vnapage[(rfraddr>>10)&3];
923 } else
924 rfraddr++;
c62d2810 925 }
9115e7d2 926 RefreshAddr = rfraddr;
4a1bf31b 927}
c62d2810 928
4a1bf31b 929static void SetRefreshLine(void)
930{
931 if(MMC5Hack && geniestage!=1)
932 {
933 if(MMC5HackCHRMode==0 && (MMC5HackSPMode&0x80))
934 {
935 if (RefreshLine != RefreshLine_MMC5Hack1) printf("set refr RefreshLine_MMC5Hack1\n");
936 RefreshLine = RefreshLine_MMC5Hack1;
937 }
938 else if(MMC5HackCHRMode==1 && (MMC5HackSPMode&0x80))
939 {
940 if (RefreshLine != RefreshLine_MMC5Hack2) printf("set refr RefreshLine_MMC5Hack2\n");
941 RefreshLine = RefreshLine_MMC5Hack2;
942 }
943 else if(MMC5HackCHRMode==1)
944 {
945 if (RefreshLine != RefreshLine_MMC5Hack3) printf("set refr RefreshLine_MMC5Hack3\n");
946 RefreshLine = RefreshLine_MMC5Hack3;
947 }
948 else
949 {
950 if (RefreshLine != RefreshLine_MMC5Hack4) printf("set refr RefreshLine_MMC5Hack4\n");
951 RefreshLine = RefreshLine_MMC5Hack4;
952 }
953 } // End if(MMC5Hack)
954 else if(PPU_hook)
955 {
956 if (RefreshLine != RefreshLine_PPU_hook) printf("set refr RefreshLine_PPU_hook\n");
957 RefreshLine = RefreshLine_PPU_hook;
958 }
959 else
960 {
961 if (RefreshLine != RefreshLine_normal) printf("set refr RefreshLine_normal\n");
962 RefreshLine = RefreshLine_normal;
963 }
c62d2810 964}
965
4fdfab07 966static INLINE
937bf65b 967void Fixit2(void)
c62d2810 968{
969 if(ScreenON || SpriteON)
970 {
971 uint32 rad=RefreshAddr;
972 rad&=0xFBE0;
973 rad|=TempAddr&0x041f;
974 RefreshAddr=rad;
975 //PPU_hook(RefreshAddr,-1);
976 }
977}
978
4fdfab07 979static INLINE
937bf65b 980void Fixit1(void)
c62d2810 981{
982 if(ScreenON || SpriteON)
983 {
984 uint32 rad=RefreshAddr;
985
986 if((rad&0x7000)==0x7000)
987 {
988 rad^=0x7000;
989 if((rad&0x3E0)==0x3A0)
990 {
991 rad^=0x3A0;
992 rad^=0x800;
993 }
994 else
995 {
996 if((rad&0x3E0)==0x3e0)
997 rad^=0x3e0;
998 else rad+=0x20;
999 }
1000 }
1001 else
1002 rad+=0x1000;
1003 RefreshAddr=rad;
1004 //PPU_hook(RefreshAddr,-1);
1005 }
1006}
1007
937bf65b 1008
5232c20c 1009// ============================//
1010// end of new code
1011// ===========================//
c62d2810 1012
1013void ResetMapping(void)
1014{
1015 int x;
1016
1017 SetReadHandler(0x0000,0xFFFF,ANull);
1018 SetWriteHandler(0x0000,0xFFFF,BNull);
1019
1020 SetReadHandler(0,0x7FF,ARAML);
1021 SetWriteHandler(0,0x7FF,BRAML);
1022
1023 SetReadHandler(0x800,0x1FFF,ARAMH); /* Part of a little */
1024 SetWriteHandler(0x800,0x1FFF,BRAMH); /* hack for a small speed boost. */
1025
1026 for(x=0x2000;x<0x4000;x+=8)
1027 {
1028 ARead[x]=A200x;
1029 BWrite[x]=B2000;
1030 ARead[x+1]=A200x;
1031 BWrite[x+1]=B2001;
1032 ARead[x+2]=A2002;
1033 BWrite[x+2]=B2002;
1034 ARead[x+3]=A200x;
1035 BWrite[x+3]=B2003;
1036 ARead[x+4]=A200x;
1037 BWrite[x+4]=B2004;
1038 ARead[x+5]=A200x;
1039 BWrite[x+5]=B2005;
1040 ARead[x+6]=A200x;
1041 BWrite[x+6]=B2006;
1042 ARead[x+7]=A2007;
1043 BWrite[x+7]=B2007;
1044 }
1045
1046 BWrite[0x4014]=B4014;
1047 SetNESSoundMap();
1048 InitializeInput();
1049}
1050
1051int GameLoaded=0;
1052void CloseGame(void)
1053{
c4980f9e 1054 FCEUI_StopMovie();
c62d2810 1055 if(GameLoaded)
1056 {
1057 if(FCEUGameInfo.type!=GIT_NSF)
92764e62 1058 FCEU_FlushGameCheats(0,0);
c62d2810 1059 #ifdef NETWORK
1060 if(FSettings.NetworkPlay) KillNetplay();
15300263 1061 #endif
c4980f9e 1062 GameInterface(GI_CLOSE, 0);
c62d2810 1063 CloseGenie();
1064 GameLoaded=0;
1065 }
1066}
1067
1068void ResetGameLoaded(void)
1069{
1070 if(GameLoaded) CloseGame();
1071 GameStateRestore=0;
1072 PPU_hook=0;
d97315ac 1073 GameHBIRQHook=GameHBIRQHook2=0;
c62d2810 1074 GameExpSound.Fill=0;
1075 GameExpSound.RChange=0;
1076 if(GameExpSound.Kill)
1077 GameExpSound.Kill();
1078 GameExpSound.Kill=0;
1079 MapIRQHook=0;
1080 MMC5Hack=0;
1081 PAL&=1;
1082 pale=0;
1083
1084 FCEUGameInfo.name=0;
1085 FCEUGameInfo.type=GIT_CART;
1086 FCEUGameInfo.vidsys=GIV_USER;
1087 FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=-1;
1088 FCEUGameInfo.inputfc=-1;
1089}
1090
5a2aa426 1091char lastLoadedGameName [2048];
989672f4 1092int LoadGameLastError = 0;
d97315ac 1093int UNIFLoad(const char *name, int fp);
1094int iNESLoad(const char *name, int fp);
1095int FDSLoad(const char *name, int fp);
1096int NSFLoad(int fp);
5a2aa426 1097
c62d2810 1098FCEUGI *FCEUI_LoadGame(char *name)
1099{
5a2aa426 1100 char name2[512];
1101 int have_movie = 0;
c62d2810 1102 int fp;
1103
b2b95d2e 1104 //Exit=1;
989672f4 1105 LoadGameLastError = 0;
c62d2810 1106 ResetGameLoaded();
1107
5a2aa426 1108 strncpy(name2, name, sizeof(name2));
1109 name2[sizeof(name2)-1] = 0;
1110
1111 fp=FCEU_fopen(name2,"rb");
c62d2810 1112 if(!fp)
1113 {
1114 FCEU_PrintError("Error opening \"%s\"!",name);
989672f4 1115 LoadGameLastError = 1;
c62d2810 1116 return 0;
1117 }
1118
5a2aa426 1119 {
1120 char *p = name2 + strlen(name2) - 4;
1121 if (strcmp(p, ".fcm") == 0)
1122 {
1123 // movie detected
1124 printf("movie detected\n");
1125 FCEU_fclose(fp);
1126 *p = 0;
1127 fp=FCEU_fopen(name2,"rb");
b2b95d2e 1128 if (!fp && p - name2 > 2) p[-2] = 0;
1129 fp=FCEU_fopen(name2,"rb");
5a2aa426 1130 if (!fp) {
1131 printf("no ROM for movie\n");
989672f4 1132 LoadGameLastError = 2;
5a2aa426 1133 return 0;
1134 }
1135 have_movie = 1;
1136 }
1137 }
1138
5a2aa426 1139 GetFileBase(name2);
1140 if(iNESLoad(name2,fp))
c62d2810 1141 goto endlseq;
1142 if(NSFLoad(fp))
1143 goto endlseq;
5a2aa426 1144 if(FDSLoad(name2,fp))
c62d2810 1145 goto endlseq;
5a2aa426 1146 if(UNIFLoad(name2,fp))
c62d2810 1147 goto endlseq;
1148
1149 FCEU_PrintError("An error occurred while loading the file.");
1150 FCEU_fclose(fp);
989672f4 1151 // format handlers may set LoadGameLastError themselves.
1152 if (LoadGameLastError == 0) LoadGameLastError = 3;
c62d2810 1153 return 0;
1154
1155 endlseq:
1156 FCEU_fclose(fp);
15300263 1157 GameLoaded=1;
c62d2810 1158
1159 FCEU_ResetVidSys();
1160 if(FCEUGameInfo.type!=GIT_NSF)
1161 if(FSettings.GameGenie)
1162 OpenGenie();
1163
1164 PowerNES();
1165 #ifdef NETWORK
1166 if(FSettings.NetworkPlay) InitNetplay();
1167 #endif
1168 SaveStateRefresh();
1169 if(FCEUGameInfo.type!=GIT_NSF)
1170 {
92764e62 1171 FCEU_LoadGamePalette();
1172 FCEU_LoadGameCheats(0);
c62d2810 1173 }
15300263 1174
c62d2810 1175 FCEU_ResetPalette();
1176 Exit=0;
5a2aa426 1177
1178 if (have_movie)
1179 FCEUI_LoadMovie(name, 1);
989672f4 1180
1181 strcpy(lastLoadedGameName, name2);
1182
c62d2810 1183 return(&FCEUGameInfo);
1184}
1185
1186
1187void FCEU_ResetVidSys(void)
1188{
1189 int w;
1190
1191 if(FCEUGameInfo.vidsys==GIV_NTSC)
1192 w=0;
1193 else if(FCEUGameInfo.vidsys==GIV_PAL)
1194 w=1;
1195 else
1196 w=FSettings.PAL;
1197
1198 if(w)
1199 {
1200 PAL=1;
c62d2810 1201 FSettings.FirstSLine=FSettings.UsrFirstSLine[1];
1202 FSettings.LastSLine=FSettings.UsrLastSLine[1];
1203 }
1204 else
1205 {
1206 PAL=0;
c62d2810 1207 FSettings.FirstSLine=FSettings.UsrFirstSLine[0];
1208 FSettings.LastSLine=FSettings.UsrLastSLine[0];
1209 }
0b65fdb3 1210 printf("ResetVidSys: PAL = %i\n", PAL);
c62d2810 1211 SetSoundVariables();
1212}
1213
1214int FCEUI_Initialize(void)
1215{
1216 if(!InitVirtualVideo())
1217 return 0;
1218 memset(&FSettings,0,sizeof(FSettings));
1219 FSettings.UsrFirstSLine[0]=8;
1220 FSettings.UsrFirstSLine[1]=0;
1221 FSettings.UsrLastSLine[0]=FSettings.UsrLastSLine[1]=239;
92764e62 1222 FSettings.SoundVolume=100;
c62d2810 1223 return 1;
1224}
1225
ea80a45b 1226void MMC5_hb(int); /* Ugh ugh ugh. */
e328100e 1227static void DoLine(void)
c62d2810 1228{
e328100e 1229 uint8 *target=XBuf+scanline*320+32;
1230
1231 LineUpdate(target);
c62d2810 1232
ea80a45b 1233 if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
1234
e328100e 1235 X6502_Run(256);
1236
f12b1f31 1237 // check: Battletoads & Double Dragon, Addams Family
1238 // sky glitches in SMB1 if done wrong
e328100e 1239 FakedLineUpdate();
1240
1241#ifdef FRAMESKIP
1242 if(!FSkip)
1243#endif
21afaa36 1244 if(scanline>=FSettings.FirstSLine && scanline<=FSettings.LastSLine)
1245 {
1246 if(SpriteON && spork)
1247 CopySprites(target);
e328100e 1248
21afaa36 1249 LineUpdateEnd(target);
1250 }
e328100e 1251 sphitx=0x100;
1252
1253 if(ScreenON || SpriteON)
1254 FetchSpriteData();
1255
1256 // DoHBlank();
1257 if(GameHBIRQHook && (ScreenON || SpriteON) && ((PPU[0]&0x38)!=0x18))
15300263 1258 {
e328100e 1259 X6502_Run(6);
1260 Fixit2();
1261 X6502_Run(4);
1262 GameHBIRQHook();
1263 X6502_Run(85-10-16);
c62d2810 1264 }
1265 else
1266 {
e328100e 1267 X6502_Run(6); // Tried 65, caused problems with Slalom(maybe others)
1268 Fixit2();
1269 X6502_Run(85-6-16);
c62d2810 1270 }
e328100e 1271
1272 if(SpriteON)
1273 RefreshSprites();
1274 if(GameHBIRQHook2 && (ScreenON || SpriteON))
1275 GameHBIRQHook2();
1276 scanline++;
1277 if (scanline<240)
1278 ResetRL(XBuf+scanline*320+32);
1279 X6502_Run(16);
c62d2810 1280}
c62d2810 1281
e328100e 1282
c62d2810 1283void EmLoop(void)
1284{
1285 for(;;)
1286 {
ea80a45b 1287 int x;
92e249b1 1288 uint32 scanlines_per_frame = PAL ? 312 : 262;
4fdfab07 1289 UpdateInput();
92764e62 1290 FCEU_ApplyPeriodicCheats();
4fdfab07 1291
1292 // FCEUPPU_Loop:
1293 if(ppudead) /* Needed for Knight Rider, possibly others. */
1294 {
6587f346 1295 //memset(XBuf, 0, 320*240);
4fdfab07 1296 X6502_Run(scanlines_per_frame*(256+85));
1297 ppudead--;
1298 goto update;
1299 }
ea80a45b 1300
c62d2810 1301 X6502_Run(256+85);
1302
1303 PPU[2]|=0x80;
1304 PPU[3]=PPUSPL=0; /* Not sure if this is correct. According
1305 to Matt Conte and my own tests, it is. Timing is probably
1306 off, though. NOTE: Not having this here
1307 breaks a Super Donkey Kong game. */
1308
1309 X6502_Run(12); /* I need to figure out the true nature and length
15300263 1310 of this delay.
c62d2810 1311 */
1312 if(FCEUGameInfo.type==GIT_NSF)
ea80a45b 1313 DoNSFFrame();
c62d2810 1314 else if(VBlankON)
1315 TriggerNMI();
1316
655f8df0 1317 // Note: this is needed for asm core
1318 // Warning: using 'scanline' var here breaks Castlevania III
1319 {
1320 int lines;
1321 X6502_Run(256+85-12);
1322 for (lines=scanlines_per_frame-242-1;lines;lines--)
1323 X6502_Run(256+85);
1324 }
1325 // X6502_Run((scanlines_per_frame-242)*(256+85)-12);
c62d2810 1326 PPU_status&=0x1f;
c62d2810 1327 X6502_Run(256);
ea80a45b 1328
c62d2810 1329 {
c62d2810 1330 if(ScreenON || SpriteON)
d97315ac 1331 {
c62d2810 1332 if(GameHBIRQHook)
1333 GameHBIRQHook();
ea80a45b 1334 if(PPU_hook)
1335 for(x=0;x<42;x++) {PPU_hook(0x2000); PPU_hook(0);} // ugh
d97315ac 1336 if(GameHBIRQHook2)
1337 GameHBIRQHook2();
1338 }
c62d2810 1339
4fdfab07 1340 X6502_Run(85-16);
c62d2810 1341
4fdfab07 1342 if(ScreenON || SpriteON)
1343 {
1344 RefreshAddr=TempAddr;
1345 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
1346 }
e328100e 1347 spork=0;
1348 ResetRL(XBuf+32);
4fdfab07 1349
1350 X6502_Run(16-kook);
1351 kook ^= 1;
c62d2810 1352 }
4fdfab07 1353
c62d2810 1354 if(FCEUGameInfo.type==GIT_NSF)
937bf65b 1355 {
6587f346 1356 // run scanlines for asm core to fuction
13624c8f 1357 for(scanline=0;scanline<240;scanline++)
1358 X6502_Run(256+85);
937bf65b 1359 }
c62d2810 1360 else
1361 {
1362 int x,max,maxref;
1363
1364 deemp=PPU[1]>>5;
4a1bf31b 1365 SetRefreshLine();
4fdfab07 1366 for(scanline=0;scanline<240;) // scanline is incremented in DoLine. Evil. :/
c62d2810 1367 {
1368 deempcnt[deemp]++;
e328100e 1369 DoLine();
c62d2810 1370 }
ea80a45b 1371 if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
c62d2810 1372 for(x=1,max=0,maxref=0;x<7;x++)
1373 {
1374 if(deempcnt[x]>max)
1375 {
1376 max=deempcnt[x];
1377 maxref=x;
1378 }
1379 deempcnt[x]=0;
1380 }
c62d2810 1381 SetNESDeemph(maxref,0);
1382 }
1383
4fdfab07 1384update:
47d0839e 1385 if(Exit)
1386 {
1387 //CloseGame();
1388 break;
1389 }
1390
c62d2810 1391 {
1392 int ssize;
1393
1394 ssize=FlushEmulateSound();
1395
4fdfab07 1396 timestampbase += timestamp;
1397 timestamp = 0;
1398
c62d2810 1399 #ifdef FRAMESKIP
1400 if(FSkip)
1401 {
1402 FCEU_PutImageDummy();
1403 FSkip--;
5232c20c 1404 FCEUD_Update(0,WaveFinalMono,ssize);
c62d2810 1405 }
1406 else
1407 #endif
1408 {
1409 FCEU_PutImage();
5232c20c 1410 FCEUD_Update(XBuf+8,WaveFinalMono,ssize);
c62d2810 1411 }
c62d2810 1412 }
1413
4fdfab07 1414 } // for
c62d2810 1415}
1416
1417#ifdef FPS
1418#include <sys/time.h>
1419uint64 frcount;
1420#endif
1421void FCEUI_Emulate(void)
1422{
1423 #ifdef FPS
1424 uint64 starttime,end;
1425 struct timeval tv;
1426 frcount=0;
1427 gettimeofday(&tv,0);
1428 starttime=((uint64)tv.tv_sec*1000000)+tv.tv_usec;
1429 #endif
1430 EmLoop();
1431
1432 #ifdef FPS
1433 // Probably won't work well on Windows port; for
1434 // debugging/speed testing.
1435 {
1436 uint64 w;
1437 int i,frac;
1438 gettimeofday(&tv,0);
1439 end=((uint64)tv.tv_sec*1000000)+tv.tv_usec;
1440 w=frcount*10000000000LL/(end-starttime);
1441 i=w/10000;
1442 frac=w-i*10000;
1443 printf("Average FPS: %d.%04d\n",i,frac);
1444 }
1445 #endif
1446
1447}
1448
1449void FCEUI_CloseGame(void)
1450{
1451 Exit=1;
1452}
1453
1454static void ResetPPU(void)
1455{
1456 VRAMBuffer=PPU[0]=PPU[1]=PPU[2]=PPU[3]=0;
1457 PPUSPL=0;
1458 PPUGenLatch=0;
1459 RefreshAddr=TempAddr=0;
1460 vtoggle = 0;
4fdfab07 1461 ppudead = 2;
1462 kook = 0;
c62d2810 1463}
1464
1465static void PowerPPU(void)
1466{
1467 memset(NTARAM,0x00,0x800);
1468 memset(PALRAM,0x00,0x20);
1469 memset(SPRAM,0x00,0x100);
1470 ResetPPU();
1471}
1472
1473void ResetNES(void)
1474{
92764e62 1475 if(!GameLoaded) return;
c4980f9e 1476 GameInterface(GI_RESETM2, 0);
c62d2810 1477 ResetSound();
1478 ResetPPU();
1479 X6502_Reset();
1480}
1481
b8da43fb 1482static void FCEU_MemoryRand(uint8 *ptr, uint32 size)
1483{
1484 int x=0;
1485 while(size)
1486 {
1487 *ptr=(x&4)?0xFF:0x00;
1488 x++;
1489 size--;
1490 ptr++;
1491 }
1492}
1493
15300263 1494void PowerNES(void)
c62d2810 1495{
1496 if(!GameLoaded) return;
1497
1498 FCEU_CheatResetRAM();
1499 FCEU_CheatAddRAM(2,0,RAM);
1500
1501 GeniePower();
1502
b8da43fb 1503#ifndef DEBUG_ASM_6502
1504 FCEU_MemoryRand(RAM,0x800);
1505#else
c62d2810 1506 memset(RAM,0x00,0x800);
b8da43fb 1507#endif
c62d2810 1508 ResetMapping();
c4980f9e 1509 GameInterface(GI_POWER, 0);
c62d2810 1510 PowerSound();
1511 PowerPPU();
1512 timestampbase=0;
b8da43fb 1513#ifdef ASM_6502
1514 if (geniestage)
1515 GenieSetPages(0);
1516#endif
c62d2810 1517 X6502_Power();
1518}
1519
890e37ba 1520
1521/* savestate stuff */
1522uint16 TempAddrT,RefreshAddrT;
1523
1524SFORMAT FCEUPPU_STATEINFO[]={
1525 { NTARAM, 0x800, "NTAR"},
1526 { PALRAM, 0x20, "PRAM"},
1527 { SPRAM, 0x100, "SPRA"},
1528 { PPU, 0x4, "PPUR"},
1529 { &XOffset, 1, "XOFF"},
1530 { &vtoggle, 1, "VTOG"},
1531 { &RefreshAddrT, 2|RLSB, "RADD"},
1532 { &TempAddrT, 2|RLSB, "TADD"},
1533 { &VRAMBuffer, 1, "VBUF"},
1534 { &PPUGenLatch, 1, "PGEN"},
1535 // from 0.98.15
1536 { &kook, 1, "KOOK"},
1537 { &ppudead, 1, "DEAD"},
1538 { &PPUSPL, 1, "PSPL"},
1539 { 0 }
1540 };
1541
1542
ARM optimized FCE Ultra port