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[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"
15d2d258 42#include "vsuni.h"
c62d2810 43#include "cheat.h"
44
45#include "state.h"
46#include "video.h"
47#include "input.h"
48#include "file.h"
49#include "crc32.h"
5232c20c 50#include "ppu.h"
c62d2810 51
92764e62 52#include "palette.h"
5a2aa426 53#include "movie.h"
54
4fdfab07 55#include "dprintf.h"
56
6587f346 57#ifdef GP2X
58#include "drivers/gp2x/asmutils.h"
59#endif
60
c62d2810 61#define Pal (PALRAM)
62
5232c20c 63
4a1bf31b 64static void (*RefreshLine)(uint8 *P, uint32 vofs) = NULL;
c62d2810 65static void PRefreshLine(void);
5232c20c 66
c62d2810 67static void ResetPPU(void);
68static void PowerPPU(void);
69
70uint64 timestampbase=0;
71
4fdfab07 72static int ppudead=1;
73static int kook=0;
74
c62d2810 75int MMC5Hack;
76uint32 MMC5HackVROMMask;
77uint8 *MMC5HackExNTARAMPtr;
78uint8 *MMC5HackVROMPTR;
15300263 79uint8 MMC5HackCHRMode=0;
c62d2810 80uint8 MMC5HackSPMode;
81uint8 MMC5HackSPScroll;
82uint8 MMC5HackSPPage;
83
84uint8 *MMC5SPRVPage[8];
85uint8 *MMC5BGVPage[8];
86
87
88uint8 VRAMBuffer,PPUGenLatch;
89
90uint8 *vnapage[4];
91uint8 PPUNTARAM;
92uint8 PPUCHRRAM;
93
94/* Color deemphasis emulation. Joy... */
95static uint8 deemp=0;
96static int deempcnt[8];
97
c62d2810 98FCEUGI FCEUGameInfo;
c4980f9e 99void (*GameInterface)(int h, void *param);
c62d2810 100
101void FP_FASTAPASS(1) (*PPU_hook)(uint32 A);
102
103void (*GameStateRestore)(int version);
d97315ac 104void (*GameHBIRQHook)(void), (*GameHBIRQHook2)(void);
c62d2810 105
106readfunc ARead[0x10000];
107writefunc BWrite[0x10000];
108static readfunc *AReadG;
109static writefunc *BWriteG;
110static int RWWrap=0;
111
92e249b1 112#ifdef ASM_6502
113static void asmcpu_update(int32 cycles)
114{
92e249b1 115 // some code from x6502.c
116 fhcnt-=cycles;
117 if(fhcnt<=0)
118 {
119 FrameSoundUpdate();
120 fhcnt+=fhinc;
121 }
122
123 if(PCMIRQCount>0)
124 {
125 PCMIRQCount-=cycles;
126 if(PCMIRQCount<=0)
127 {
128 vdis=1;
129 if((PSG[0x10]&0x80) && !(PSG[0x10]&0x40))
130 {
131 extern uint8 SIRQStat;
132 SIRQStat|=0x80;
133 X6502_IRQBegin(FCEU_IQDPCM);
134 }
135 }
136 }
137}
138
139void asmcpu_unpack(void)
140{
141 nes_registers[0] = X.A << 24;
142 nes_registers[1] = X.X;
143 nes_registers[2] = X.Y;
144 pc_base = 0;
145 nes_registers[3] = X.PC;
c0bf6f9f 146 X6502_Rebase_a();
92e249b1 147 nes_registers[4] = X.S << 24;
148 nes_registers[4]|= X.IRQlow << 8;
0bb3fe12 149 if (MapIRQHook)
150 nes_registers[4] |= 1<<16; // MapIRQHook set bit
8fa5eb33 151 nes_registers[7] = (uint32)X.count << 16;
92e249b1 152
153 // NVUB DIZC
154 nes_registers[4]|= X.P & 0x5d;
155 nes_registers[5] = X.P << 24; // N
156 if (!(X.P&0x02)) nes_registers[5] |= 1; // Z
157}
158
159void asmcpu_pack(void)
160{
161 X.A = nes_registers[0] >> 24;
162 X.X = nes_registers[1];
163 X.Y = nes_registers[2];
164 X.PC= nes_registers[3] - pc_base;
165 X.S = nes_registers[4] >> 24;
166 X.IRQlow = nes_registers[4] >> 8;
8fa5eb33 167 X.count = (int32) nes_registers[7] >> 16;
92e249b1 168
169 // NVUB DIZC
170 X.P = nes_registers[4] & 0x5d;
171 if ( nes_registers[5]&0x80000000) X.P |= 0x80; // N
172 if (!(nes_registers[5]&0x000000ff)) X.P |= 0x02; // Z
173}
174#endif
175
c62d2810 176DECLFW(BNull)
177{
178
179}
180
181DECLFR(ANull)
182{
183 return(X.DB);
184}
185
186int AllocGenieRW(void)
187{
188 if(!(AReadG=FCEU_malloc(0x8000*sizeof(readfunc))))
189 return 0;
190 if(!(BWriteG=FCEU_malloc(0x8000*sizeof(writefunc))))
191 return 0;
192 RWWrap=1;
193 return 1;
194}
195
196void FlushGenieRW(void)
197{
198 int32 x;
199
200 if(RWWrap)
201 {
202 for(x=0;x<0x8000;x++)
203 {
204 ARead[x+0x8000]=AReadG[x];
205 BWrite[x+0x8000]=BWriteG[x];
206 }
b8da43fb 207#ifdef ASM_6502
208 GenieSetPages(1);
209#endif
c62d2810 210 free(AReadG);
211 free(BWriteG);
212 AReadG=0;
213 BWriteG=0;
214 RWWrap=0;
215 }
216}
217
218readfunc FASTAPASS(1) GetReadHandler(int32 a)
219{
220 if(a>=0x8000 && RWWrap)
221 return AReadG[a-0x8000];
222 else
223 return ARead[a];
224}
225
226void FASTAPASS(3) SetReadHandler(int32 start, int32 end, readfunc func)
227{
228 int32 x;
229
230 if(!func)
231 func=ANull;
232
233 if(RWWrap)
234 for(x=end;x>=start;x--)
235 {
236 if(x>=0x8000)
237 AReadG[x-0x8000]=func;
238 else
239 ARead[x]=func;
240 }
241 else
242
243 for(x=end;x>=start;x--)
244 ARead[x]=func;
245}
246
247writefunc FASTAPASS(1) GetWriteHandler(int32 a)
248{
249 if(RWWrap && a>=0x8000)
250 return BWriteG[a-0x8000];
251 else
252 return BWrite[a];
253}
254
255void FASTAPASS(3) SetWriteHandler(int32 start, int32 end, writefunc func)
256{
257 int32 x;
258
259 if(!func)
260 func=BNull;
261
262 if(RWWrap)
263 for(x=end;x>=start;x--)
264 {
265 if(x>=0x8000)
266 BWriteG[x-0x8000]=func;
267 else
268 BWrite[x]=func;
269 }
270 else
271 for(x=end;x>=start;x--)
272 BWrite[x]=func;
273}
274
275uint8 vtoggle=0;
276uint8 XOffset=0;
277
278uint32 TempAddr,RefreshAddr;
279
c62d2810 280
281/* scanline is equal to the current visible scanline we're on. */
282
283int scanline;
c62d2810 284
9115e7d2 285uint8 GameMemBlock[131072] __attribute__ ((aligned (4)));
286uint8 NTARAM[0x800] __attribute__ ((aligned (4)));
287uint8 PALRAM[0x20] __attribute__ ((aligned (4)));
92e249b1 288#if !defined(ASM_6502) || defined(DEBUG_ASM_6502)
9115e7d2 289uint8 RAM[0x800] __attribute__ ((aligned (4)));
af32b6c2 290#endif
9115e7d2 291
c62d2810 292uint8 PPU[4];
293uint8 PPUSPL;
294
c62d2810 295uint8 PAL=0;
296
5232c20c 297
c62d2810 298#define MMC5BGVRAMADR(V) &MMC5BGVPage[(V)>>10][(V)]
299#define VRAMADR(V) &VPage[(V)>>10][(V)]
15300263 300
4fdfab07 301static int linestartts;
302static int tofix=0;
303
e328100e 304static uint8 *Plinef;
305
306extern uint8 sprlinebuf[256+8];
307extern int32 sphitx;
308extern uint8 sphitdata;
309
310extern int spork; /* spork the world. Any sprites on this line?
311 Then this will be set to 1. Needed for zapper
312 emulation and *gasp* sprite emulation.
313 */
314
315static void ResetRL(uint8 *target)
4fdfab07 316{
e328100e 317 if(InputScanlineHook)
318 InputScanlineHook(0,0,0,0);
319 Plinef=target;
4fdfab07 320 linestartts=timestamp*48+X6502_GetCycleCount();
321 tofix=1;
322}
323
324static INLINE void Fixit1(void);
325
e328100e 326/* faking FCEUPPU_LineUpdate() from later versions of the emu */
327static void FakedLineUpdate(void)
4fdfab07 328{
329 #define TOFIXNUM (272-0x4)
330 int lastpixel;
331
e328100e 332 if (scanline >= 240) return;
333
334 if (tofix || sphitx != 0x100)
4fdfab07 335 {
336 lastpixel = (timestamp*48-linestartts)>>4;
337 if (PAL) lastpixel += lastpixel>>4;
4fdfab07 338 //printf("lastpixel: %i\n", lastpixel);
e328100e 339 }
340
341 if (tofix && lastpixel>=TOFIXNUM)
342 {
343 Fixit1();
344 tofix=0;
345 }
4fdfab07 346
e328100e 347 // CheckSpriteHit()
348 if(sphitx!=0x100)
349 {
350 int l=lastpixel-16;
351 int x;
352
353 for(x=sphitx;x<(sphitx+8) && x<l;x++)
4fdfab07 354 {
e328100e 355 if((sphitdata&(0x80>>(x-sphitx))) && !(Plinef[x]&64))
356 {
357 PPU_status|=0x40;
358 sphitx=0x100;
359 break;
360 }
4fdfab07 361 }
362 }
363}
364
365
c62d2810 366static DECLFW(BRAML)
15300263 367{
c62d2810 368 RAM[A]=V;
369}
370
371static DECLFW(BRAMH)
372{
373 RAM[A&0x7FF]=V;
374}
375
376static DECLFR(ARAML)
377{
378 return RAM[A];
379}
380
381static DECLFR(ARAMH)
382{
383 return RAM[A&0x7FF];
384}
385
15300263 386
c62d2810 387static DECLFR(A2002)
388{
4fdfab07 389 /* merged */
c62d2810 390 uint8 ret;
4fdfab07 391
e328100e 392 FakedLineUpdate();
c62d2810 393 ret = PPU_status;
4fdfab07 394 ret|=PPUGenLatch&0x1F;
c62d2810 395 vtoggle=0;
396 PPU_status&=0x7F;
4fdfab07 397 PPUGenLatch=ret;
ea80a45b 398 //dprintf("r [2002] %02x",ret);
4fdfab07 399 return ret;
c62d2810 400}
401
402static DECLFR(A200x)
403{
4fdfab07 404 /* merged */
e328100e 405 FakedLineUpdate();
c62d2810 406 return PPUGenLatch;
407}
408
409static DECLFR(A2007)
410{
4fdfab07 411 /* merged */
c62d2810 412 uint8 ret;
413 uint32 tmp=RefreshAddr&0x3FFF;
414
e328100e 415 FakedLineUpdate();
4fdfab07 416
417 ret=VRAMBuffer;
418
c62d2810 419 if(PPU_hook) PPU_hook(tmp);
4fdfab07 420 PPUGenLatch=VRAMBuffer;
15300263 421 if(tmp<0x2000)
c62d2810 422 {
423 VRAMBuffer=VPage[tmp>>10][tmp];
424 }
15300263 425 else
c62d2810 426 {
427 VRAMBuffer=vnapage[(tmp>>10)&0x3][tmp&0x3FF];
428 }
429
430 if (INC32) RefreshAddr+=32;
431 else RefreshAddr++;
432 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
4fdfab07 433 dprintf("r [2007] %02x",ret);
c62d2810 434 return ret;
435}
436
437static DECLFW(B2000)
438{
4fdfab07 439 /* NMI2? */
e328100e 440 FakedLineUpdate();
c62d2810 441 PPUGenLatch=V;
442 PPU[0]=V;
443 TempAddr&=0xF3FF;
444 TempAddr|=(V&3)<<10;
445}
446
447static DECLFW(B2001)
448{
4fdfab07 449 /* merged */
e328100e 450 FakedLineUpdate();
c62d2810 451 PPUGenLatch=V;
452 PPU[1]=V;
453 if(V&0xE0)
454 deemp=V>>5;
455 //printf("$%04x:$%02x, %d\n",X.PC,V,scanline);
456}
457
458static DECLFW(B2002)
459{
4fdfab07 460 /* merged */
c62d2810 461 PPUGenLatch=V;
462}
463
464static DECLFW(B2003)
465{
4fdfab07 466 /* merged */
c62d2810 467 PPUGenLatch=V;
468 PPU[3]=V;
469 PPUSPL=V&0x7;
470}
471
472static DECLFW(B2004)
473{
4fdfab07 474 /* merged */
c62d2810 475 PPUGenLatch=V;
4fdfab07 476 if(PPUSPL>=8)
c62d2810 477 {
478 if(PPU[3]>=8)
479 SPRAM[PPU[3]]=V;
480 }
481 else
482 {
483 //printf("$%02x:$%02x\n",PPUSPL,V);
484 SPRAM[PPUSPL]=V;
c62d2810 485 }
486 PPU[3]++;
4fdfab07 487 PPUSPL++;
5232c20c 488
c62d2810 489}
490
491static DECLFW(B2005)
492{
4fdfab07 493 /* merged */
c62d2810 494 uint32 tmp=TempAddr;
e328100e 495 FakedLineUpdate();
c62d2810 496 PPUGenLatch=V;
497 if (!vtoggle)
498 {
499 tmp&=0xFFE0;
500 tmp|=V>>3;
501 XOffset=V&7;
502 }
503 else
504 {
505 tmp&=0x8C1F;
506 tmp|=((V&~0x7)<<2);
507 tmp|=(V&7)<<12;
508 }
509
510 TempAddr=tmp;
511 vtoggle^=1;
512}
513
514static DECLFW(B2006)
515{
4fdfab07 516 /* merged */
e328100e 517 FakedLineUpdate();
4fdfab07 518
c62d2810 519 PPUGenLatch=V;
520 if(!vtoggle)
521 {
522 TempAddr&=0x00FF;
523 TempAddr|=(V&0x3f)<<8;
524 }
525 else
526 {
527 TempAddr&=0xFF00;
528 TempAddr|=V;
c62d2810 529
4fdfab07 530 RefreshAddr=TempAddr;
c62d2810 531 if(PPU_hook)
532 PPU_hook(RefreshAddr);
533 }
534 vtoggle^=1;
535}
536
537static DECLFW(B2007)
15300263 538{
4fdfab07 539 /* merged */
c62d2810 540 uint32 tmp=RefreshAddr&0x3FFF;
c62d2810 541 PPUGenLatch=V;
542 if(tmp>=0x3F00)
543 {
4fdfab07 544 // hmmm....
545 if(!(tmp&0xf))
546 PALRAM[0x00]=PALRAM[0x04]=PALRAM[0x08]=PALRAM[0x0C]=V&0x3f;
547 else if(tmp&3) PALRAM[(tmp&0x1f)]=V&0x3f;
c62d2810 548 }
549 else if(tmp<0x2000)
550 {
551 if(PPUCHRRAM&(1<<(tmp>>10)))
552 VPage[tmp>>10][tmp]=V;
553 }
554 else
15300263 555 {
c62d2810 556 if(PPUNTARAM&(1<<((tmp&0xF00)>>10)))
557 vnapage[((tmp&0xF00)>>10)][tmp&0x3FF]=V;
558 }
559 if (INC32) RefreshAddr+=32;
560 else RefreshAddr++;
561 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
562}
563
564static DECLFW(B4014)
15300263 565{
c62d2810 566 uint32 t=V<<8;
567 int x;
4fdfab07 568
c62d2810 569 for(x=0;x<256;x++)
570 B2004(0x2004,X.DB=ARead[t+x](t+x));
571 X6502_AddCycles(512);
572}
573
5232c20c 574void BGRender(uint8 *target)
c62d2810 575{
4a1bf31b 576 uint32 tem, vofs;
577 vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
578
579 Pal[0]|=64;
580 Pal[4]|=64;
581 Pal[8]|=64;
582 Pal[0xC]|=64;
583 RefreshLine(target-XOffset, vofs);
584 Pal[0]&=63;
585 Pal[4]&=63;
586 Pal[8]&=63;
587 Pal[0xC]&=63;
588
c62d2810 589 if(!(PPU[1]&2))
590 {
9115e7d2 591 tem=Pal[0]|0x40;
592 tem|=tem<<8;
593 tem|=tem<<16;
c62d2810 594 *(uint32 *)target=*(uint32 *)(target+4)=tem;
595 }
596}
597
598#ifdef FRAMESKIP
5232c20c 599int FSkip=0;
c62d2810 600void FCEUI_FrameSkip(int x)
601{
602 FSkip=x;
603}
604#endif
605
606/* This is called at the beginning of each visible scanline */
e328100e 607static void LineUpdate(uint8 *target)
c62d2810 608{
609 uint32 tem;
c0623dcf 610 int y;
c62d2810 611
078eb4c0 612 /* PRefreshLine() will not get called on skipped frames. This
613 * could cause a problem, but the solution would be rather complex,
614 * due to the current sprite 0 hit code.
615 */
c0623dcf 616 if(FSkip)
617 {
618 y=(int)SPRAM[0] + 1;
619 if(scanline==y && SpriteON) PPU_status|=0x40; // hack
620 return;
621 }
078eb4c0 622
623 if(scanline < FSettings.FirstSLine || scanline > FSettings.LastSLine)
e328100e 624 {
625 if(PPU_hook)
626 PRefreshLine();
c0623dcf 627 y=(int)SPRAM[0] + 1;
628 if(scanline==y && SpriteON) PPU_status|=0x40;
e328100e 629 }
630 else
631 {
632 if(ScreenON)
c62d2810 633 {
21afaa36 634 BGRender(target);
c62d2810 635 }
e328100e 636 else
c62d2810 637 {
e328100e 638 tem=Pal[0]|0x40;
639 tem|=tem << 8;
640 tem|=tem << 16;
641 FCEU_dwmemset(target,tem,256);
c62d2810 642 }
15300263 643 }
e328100e 644
c62d2810 645 if(InputScanlineHook)
e328100e 646 InputScanlineHook(target,spork?sprlinebuf:0,linestartts,256);
647}
648
649
650static void LineUpdateEnd(uint8 *target)
651{
652#ifdef GP2X
653 if(ScreenON || SpriteON) // Yes, very el-cheapo.
654 {
655 if(PPU[1]&0x01)
656 block_and(target, 256, 0x30);
657 }
658 if((PPU[1]>>5)==0x7)
659 block_or(target, 256, 0xc0);
660 else if(PPU[1]&0xE0)
661 block_or(target, 256, 0x40);
662 else
663 block_andor(target, 256, 0x3f, 0x80);
664#else
665 int x;
666
667 if(ScreenON || SpriteON) // Yes, very el-cheapo.
668 {
669 if(PPU[1]&0x01)
670 {
671 for(x=63;x>=0;x--)
672 *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])&0x30303030;
673 }
674 }
675 if((PPU[1]>>5)==0x7)
676 {
677 for(x=63;x>=0;x--)
678 *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0xc0c0c0c0;
679 }
680 else if(PPU[1]&0xE0)
681 for(x=63;x>=0;x--)
682 *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])|0x40404040;
683 else
684 for(x=63;x>=0;x--)
685 *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0x80808080;
686#endif
687
688 // black borders
689 ((uint32 *)target)[-2]=((uint32 *)target)[-1]=0;
690 ((uint32 *)target)[64]=((uint32 *)target)[65]=0;
c62d2810 691}
692
693#define PAL(c) ((c)+cc)
694
695
696static void PRefreshLine(void)
697{
078eb4c0 698 uint32 vofs;
699 int X1;
700 vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
701 void (*PPU_hook_)(uint32 A) = PPU_hook;
c62d2810 702
c62d2810 703
078eb4c0 704 for(X1=33;X1;X1--)
705 {
706 uint32 zz2;
707 uint32 vadr;
708
709 zz2=(RefreshAddr>>10)&3;
710 PPU_hook_(0x2000|(RefreshAddr&0xFFF));
711
712 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
713
714 PPU_hook_(vadr);
c62d2810 715
c62d2810 716 if((RefreshAddr&0x1f)==0x1f)
717 RefreshAddr^=0x41F;
718 else
719 RefreshAddr++;
078eb4c0 720 }
c62d2810 721}
722
4a1bf31b 723/* This high-level graphics MMC5 emulation code was written
724 for MMC5 carts in "CL" mode. It's probably not totally
725 correct for carts in "SL" mode.
726 */
727static void RefreshLine_MMC5Hack1(uint8 *P, uint32 vofs)
c62d2810 728{
4a1bf31b 729 int8 tochange, X1;
c62d2810 730
731 tochange=MMC5HackSPMode&0x1F;
732
733 for(X1=33;X1;X1--,P+=8)
734 {
735 uint8 *C;
5232c20c 736 uint8 cc,zz,zz2;
c62d2810 737 uint32 vadr;
738
15300263 739 if((tochange<=0 && MMC5HackSPMode&0x40) ||
c62d2810 740 (tochange>0 && !(MMC5HackSPMode&0x40)))
741 {
742 uint8 xs,ys;
743
15300263 744 xs=33-X1;
c62d2810 745 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
746 if(ys>=0x1E) ys-=0x1E;
747 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
748
749 C = MMC5HackVROMPTR+vadr;
750 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
751
752 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
753 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
754 }
755 else
756 {
757 zz=RefreshAddr&0x1F;
758 zz2=(RefreshAddr>>10)&3;
759 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
760 C = MMC5BGVRAMADR(vadr);
761 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
762 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
763 }
764 #include "fceline.h"
765
766 if((RefreshAddr&0x1f)==0x1f)
767 RefreshAddr^=0x41F;
768 else
769 RefreshAddr++;
770 tochange--;
771 }
4a1bf31b 772}
773
774static void RefreshLine_MMC5Hack2(uint8 *P, uint32 vofs)
775{
776 int8 tochange, X1;
c62d2810 777
778 tochange=MMC5HackSPMode&0x1F;
779
780 for(X1=33;X1;X1--,P+=8)
781 {
782 uint8 *C;
5232c20c 783 uint8 cc;
784 uint8 zz2;
c62d2810 785 uint32 vadr;
786
787 if((tochange<=0 && MMC5HackSPMode&0x40) ||
788 (tochange>0 && !(MMC5HackSPMode&0x40)))
789 {
790 uint8 xs,ys;
791
15300263 792 xs=33-X1;
c62d2810 793 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
794 if(ys>=0x1E) ys-=0x1E;
795 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
796
797 C = MMC5HackVROMPTR+vadr;
798 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
799
800 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
801 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
802 }
803 else
804 {
805 C=MMC5HackVROMPTR;
806 zz2=(RefreshAddr>>10)&3;
807 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
808 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
809 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
810 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
811 cc = vadr;
812 }
813 #include "fceline.h"
814 if((RefreshAddr&0x1f)==0x1f)
815 RefreshAddr^=0x41F;
816 else
817 RefreshAddr++;
818 tochange--;
819 }
4a1bf31b 820}
821
822static void RefreshLine_MMC5Hack3(uint8 *P, uint32 vofs)
823{
824 int8 X1;
c62d2810 825
c62d2810 826 for(X1=33;X1;X1--,P+=8)
827 {
15300263 828 uint8 *C;
5232c20c 829 uint8 cc;
830 uint8 zz2;
15300263 831 uint32 vadr;
c62d2810 832
833 C=MMC5HackVROMPTR;
834 zz2=(RefreshAddr>>10)&3;
835 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
15300263 836 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
c62d2810 837 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
838 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
839 cc = vadr;
840
841 #include "fceline.h"
842 if((RefreshAddr&0x1f)==0x1f)
843 RefreshAddr^=0x41F;
844 else
845 RefreshAddr++;
846 }
4a1bf31b 847}
848
849static void RefreshLine_MMC5Hack4(uint8 *P, uint32 vofs)
850{
851 int8 X1;
852
c62d2810 853 for(X1=33;X1;X1--,P+=8)
854 {
855 uint8 *C;
5232c20c 856 uint8 cc,zz,zz2;
c62d2810 857 uint32 vadr;
858
859 zz=RefreshAddr&0x1F;
860 zz2=(RefreshAddr>>10)&3;
861 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
862 C = MMC5BGVRAMADR(vadr);
863 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
864 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
865
866 #include "fceline.h"
15300263 867
c62d2810 868 if((RefreshAddr&0x1f)==0x1f)
869 RefreshAddr^=0x41F;
870 else
871 RefreshAddr++;
15300263 872 }
4a1bf31b 873}
874
875static void RefreshLine_PPU_hook(uint8 *P, uint32 vofs)
876{
877 int8 X1;
078eb4c0 878 void (*PPU_hook_)(uint32 A) = PPU_hook;
879 uint32 rfraddr = RefreshAddr;
880 uint8 *page = vnapage[(rfraddr>>10)&3];
c62d2810 881
c62d2810 882 for(X1=33;X1;X1--,P+=8)
883 {
15300263 884 uint8 *C;
078eb4c0 885 uint8 cc,zz;
15300263 886 uint32 vadr;
c62d2810 887
078eb4c0 888 zz=rfraddr&0x1F;
889 PPU_hook_(0x2000|(rfraddr&0xFFF));
890 cc=page[0x3c0+(zz>>2)+((rfraddr&0x380)>>4)];
891 cc=((cc >> ((zz&2) + ((rfraddr&0x40)>>4))) &3) <<2;
892 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
c62d2810 893 C = VRAMADR(vadr);
894
895 #include "fceline.h"
896
078eb4c0 897 PPU_hook_(vadr);
c62d2810 898
078eb4c0 899 if((rfraddr&0x1f)==0x1f) {
900 rfraddr^=0x41F;
901 page = vnapage[(rfraddr>>10)&3];
902 } else
903 rfraddr++;
c62d2810 904 }
078eb4c0 905 RefreshAddr = rfraddr;
4a1bf31b 906}
907
9115e7d2 908static void RefreshLine_normal(uint8 *P, uint32 vofs) // vofs is 0x107 max
4a1bf31b 909{
910 int8 X1;
9115e7d2 911 uint32 rfraddr = RefreshAddr;
912 uint8 *page = vnapage[(rfraddr>>10)&3];
913 uint32 cc2=0;
4a1bf31b 914
9115e7d2 915 if ((rfraddr&0xc)!=0)
916 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
917
918 for (X1=33;X1;X1--,P+=8)
c62d2810 919 {
9115e7d2 920 uint8 cc,*C;
c62d2810 921 uint32 vadr;
922
9115e7d2 923 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
c62d2810 924 C = VRAMADR(vadr);
9115e7d2 925 if ((rfraddr&0xc)==0)
926 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
927 cc=((cc2 >> ((rfraddr&2) + ((rfraddr&0x40)>>4) + ((rfraddr&0xc)<<1))) & 3) << 2;
4a1bf31b 928
9115e7d2 929 #include "fceline.h"
15300263 930
9115e7d2 931 if((rfraddr&0x1f)==0x1f) {
932 rfraddr^=0x41F;
933 page = vnapage[(rfraddr>>10)&3];
934 } else
935 rfraddr++;
c62d2810 936 }
9115e7d2 937 RefreshAddr = rfraddr;
4a1bf31b 938}
c62d2810 939
4a1bf31b 940static void SetRefreshLine(void)
941{
942 if(MMC5Hack && geniestage!=1)
943 {
944 if(MMC5HackCHRMode==0 && (MMC5HackSPMode&0x80))
945 {
946 if (RefreshLine != RefreshLine_MMC5Hack1) printf("set refr RefreshLine_MMC5Hack1\n");
947 RefreshLine = RefreshLine_MMC5Hack1;
948 }
949 else if(MMC5HackCHRMode==1 && (MMC5HackSPMode&0x80))
950 {
951 if (RefreshLine != RefreshLine_MMC5Hack2) printf("set refr RefreshLine_MMC5Hack2\n");
952 RefreshLine = RefreshLine_MMC5Hack2;
953 }
954 else if(MMC5HackCHRMode==1)
955 {
956 if (RefreshLine != RefreshLine_MMC5Hack3) printf("set refr RefreshLine_MMC5Hack3\n");
957 RefreshLine = RefreshLine_MMC5Hack3;
958 }
959 else
960 {
961 if (RefreshLine != RefreshLine_MMC5Hack4) printf("set refr RefreshLine_MMC5Hack4\n");
962 RefreshLine = RefreshLine_MMC5Hack4;
963 }
964 } // End if(MMC5Hack)
965 else if(PPU_hook)
966 {
967 if (RefreshLine != RefreshLine_PPU_hook) printf("set refr RefreshLine_PPU_hook\n");
968 RefreshLine = RefreshLine_PPU_hook;
969 }
970 else
971 {
972 if (RefreshLine != RefreshLine_normal) printf("set refr RefreshLine_normal\n");
973 RefreshLine = RefreshLine_normal;
974 }
c62d2810 975}
976
4fdfab07 977static INLINE
937bf65b 978void Fixit2(void)
c62d2810 979{
980 if(ScreenON || SpriteON)
981 {
982 uint32 rad=RefreshAddr;
983 rad&=0xFBE0;
984 rad|=TempAddr&0x041f;
985 RefreshAddr=rad;
986 //PPU_hook(RefreshAddr,-1);
987 }
988}
989
4fdfab07 990static INLINE
937bf65b 991void Fixit1(void)
c62d2810 992{
993 if(ScreenON || SpriteON)
994 {
995 uint32 rad=RefreshAddr;
996
997 if((rad&0x7000)==0x7000)
998 {
999 rad^=0x7000;
1000 if((rad&0x3E0)==0x3A0)
1001 {
1002 rad^=0x3A0;
1003 rad^=0x800;
1004 }
1005 else
1006 {
1007 if((rad&0x3E0)==0x3e0)
1008 rad^=0x3e0;
1009 else rad+=0x20;
1010 }
1011 }
1012 else
1013 rad+=0x1000;
1014 RefreshAddr=rad;
1015 //PPU_hook(RefreshAddr,-1);
1016 }
1017}
1018
937bf65b 1019
5232c20c 1020// ============================//
1021// end of new code
1022// ===========================//
c62d2810 1023
1024void ResetMapping(void)
1025{
1026 int x;
1027
1028 SetReadHandler(0x0000,0xFFFF,ANull);
1029 SetWriteHandler(0x0000,0xFFFF,BNull);
1030
1031 SetReadHandler(0,0x7FF,ARAML);
1032 SetWriteHandler(0,0x7FF,BRAML);
1033
1034 SetReadHandler(0x800,0x1FFF,ARAMH); /* Part of a little */
1035 SetWriteHandler(0x800,0x1FFF,BRAMH); /* hack for a small speed boost. */
1036
1037 for(x=0x2000;x<0x4000;x+=8)
1038 {
1039 ARead[x]=A200x;
1040 BWrite[x]=B2000;
1041 ARead[x+1]=A200x;
1042 BWrite[x+1]=B2001;
1043 ARead[x+2]=A2002;
1044 BWrite[x+2]=B2002;
1045 ARead[x+3]=A200x;
1046 BWrite[x+3]=B2003;
1047 ARead[x+4]=A200x;
1048 BWrite[x+4]=B2004;
1049 ARead[x+5]=A200x;
1050 BWrite[x+5]=B2005;
1051 ARead[x+6]=A200x;
1052 BWrite[x+6]=B2006;
1053 ARead[x+7]=A2007;
1054 BWrite[x+7]=B2007;
1055 }
1056
1057 BWrite[0x4014]=B4014;
1058 SetNESSoundMap();
1059 InitializeInput();
1060}
1061
1062int GameLoaded=0;
1063void CloseGame(void)
1064{
c4980f9e 1065 FCEUI_StopMovie();
c62d2810 1066 if(GameLoaded)
1067 {
1068 if(FCEUGameInfo.type!=GIT_NSF)
92764e62 1069 FCEU_FlushGameCheats(0,0);
c62d2810 1070 #ifdef NETWORK
1071 if(FSettings.NetworkPlay) KillNetplay();
15300263 1072 #endif
c4980f9e 1073 GameInterface(GI_CLOSE, 0);
c62d2810 1074 CloseGenie();
1075 GameLoaded=0;
1076 }
1077}
1078
1079void ResetGameLoaded(void)
1080{
1081 if(GameLoaded) CloseGame();
1082 GameStateRestore=0;
1083 PPU_hook=0;
d97315ac 1084 GameHBIRQHook=GameHBIRQHook2=0;
c62d2810 1085 GameExpSound.Fill=0;
1086 GameExpSound.RChange=0;
1087 if(GameExpSound.Kill)
1088 GameExpSound.Kill();
1089 GameExpSound.Kill=0;
1090 MapIRQHook=0;
1091 MMC5Hack=0;
1092 PAL&=1;
1093 pale=0;
1094
1095 FCEUGameInfo.name=0;
1096 FCEUGameInfo.type=GIT_CART;
1097 FCEUGameInfo.vidsys=GIV_USER;
1098 FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=-1;
1099 FCEUGameInfo.inputfc=-1;
1100}
1101
5a2aa426 1102char lastLoadedGameName [2048];
989672f4 1103int LoadGameLastError = 0;
d97315ac 1104int UNIFLoad(const char *name, int fp);
1105int iNESLoad(const char *name, int fp);
1106int FDSLoad(const char *name, int fp);
1107int NSFLoad(int fp);
5a2aa426 1108
c62d2810 1109FCEUGI *FCEUI_LoadGame(char *name)
1110{
5a2aa426 1111 char name2[512];
892b1f6c 1112 int have_movie = 0, have_ips = 0;
c62d2810 1113 int fp;
1114
b2b95d2e 1115 //Exit=1;
989672f4 1116 LoadGameLastError = 0;
c62d2810 1117 ResetGameLoaded();
1118
5a2aa426 1119 strncpy(name2, name, sizeof(name2));
1120 name2[sizeof(name2)-1] = 0;
1121
1122 fp=FCEU_fopen(name2,"rb");
c62d2810 1123 if(!fp)
1124 {
1125 FCEU_PrintError("Error opening \"%s\"!",name);
989672f4 1126 LoadGameLastError = 1;
c62d2810 1127 return 0;
1128 }
1129
5a2aa426 1130 {
1131 char *p = name2 + strlen(name2) - 4;
892b1f6c 1132 if (strcasecmp(p, ".fcm") == 0) printf("movie detected\n"), have_movie = 1;
1133 if (strcasecmp(p, ".ips") == 0) printf("ips detected\n"), have_ips = 1;
1134 if (have_movie || have_ips)
5a2aa426 1135 {
1136 // movie detected
5a2aa426 1137 FCEU_fclose(fp);
1138 *p = 0;
1139 fp=FCEU_fopen(name2,"rb");
892b1f6c 1140 if (!fp && p - name2 > 2)
1141 {
1142 for (p--; p > name2 && *p != '.'; p--);
1143 *p = 0;
1144 fp=FCEU_fopen(name2,"rb");
1145 }
5a2aa426 1146 if (!fp) {
892b1f6c 1147 printf("no ROM for ips/movie\n");
989672f4 1148 LoadGameLastError = 2;
5a2aa426 1149 return 0;
1150 }
5a2aa426 1151 }
1152 }
1153
892b1f6c 1154 // do IPS patch
1155 if (have_ips)
1156 {
1157 FCEU_fclose(fp);
1158 FILE *ips = fopen(name, "rb");
1159 if (!ips) return 0;
1160 fp=FCEU_fopen_forcemem(name2);
1161 if (!fp) { fclose(ips); return 0; }
1162 ApplyIPS(ips, fp); // closes ips
1163 }
1164
5a2aa426 1165 GetFileBase(name2);
1166 if(iNESLoad(name2,fp))
c62d2810 1167 goto endlseq;
1168 if(NSFLoad(fp))
1169 goto endlseq;
5a2aa426 1170 if(FDSLoad(name2,fp))
c62d2810 1171 goto endlseq;
5a2aa426 1172 if(UNIFLoad(name2,fp))
c62d2810 1173 goto endlseq;
1174
1175 FCEU_PrintError("An error occurred while loading the file.");
1176 FCEU_fclose(fp);
989672f4 1177 // format handlers may set LoadGameLastError themselves.
1178 if (LoadGameLastError == 0) LoadGameLastError = 3;
c62d2810 1179 return 0;
1180
1181 endlseq:
1182 FCEU_fclose(fp);
15300263 1183 GameLoaded=1;
c62d2810 1184
1185 FCEU_ResetVidSys();
1186 if(FCEUGameInfo.type!=GIT_NSF)
1187 if(FSettings.GameGenie)
1188 OpenGenie();
1189
1190 PowerNES();
1191 #ifdef NETWORK
1192 if(FSettings.NetworkPlay) InitNetplay();
1193 #endif
1194 SaveStateRefresh();
1195 if(FCEUGameInfo.type!=GIT_NSF)
1196 {
92764e62 1197 FCEU_LoadGamePalette();
1198 FCEU_LoadGameCheats(0);
c62d2810 1199 }
15300263 1200
c62d2810 1201 FCEU_ResetPalette();
1202 Exit=0;
5a2aa426 1203
1204 if (have_movie)
1205 FCEUI_LoadMovie(name, 1);
989672f4 1206
1207 strcpy(lastLoadedGameName, name2);
1208
c62d2810 1209 return(&FCEUGameInfo);
1210}
1211
1212
1213void FCEU_ResetVidSys(void)
1214{
1215 int w;
1216
1217 if(FCEUGameInfo.vidsys==GIV_NTSC)
1218 w=0;
1219 else if(FCEUGameInfo.vidsys==GIV_PAL)
1220 w=1;
1221 else
1222 w=FSettings.PAL;
1223
1224 if(w)
1225 {
1226 PAL=1;
c62d2810 1227 FSettings.FirstSLine=FSettings.UsrFirstSLine[1];
1228 FSettings.LastSLine=FSettings.UsrLastSLine[1];
1229 }
1230 else
1231 {
1232 PAL=0;
c62d2810 1233 FSettings.FirstSLine=FSettings.UsrFirstSLine[0];
1234 FSettings.LastSLine=FSettings.UsrLastSLine[0];
1235 }
0b65fdb3 1236 printf("ResetVidSys: PAL = %i\n", PAL);
c62d2810 1237 SetSoundVariables();
1238}
1239
1240int FCEUI_Initialize(void)
1241{
1242 if(!InitVirtualVideo())
1243 return 0;
1244 memset(&FSettings,0,sizeof(FSettings));
1245 FSettings.UsrFirstSLine[0]=8;
1246 FSettings.UsrFirstSLine[1]=0;
1247 FSettings.UsrLastSLine[0]=FSettings.UsrLastSLine[1]=239;
92764e62 1248 FSettings.SoundVolume=100;
c62d2810 1249 return 1;
1250}
1251
ea80a45b 1252void MMC5_hb(int); /* Ugh ugh ugh. */
e328100e 1253static void DoLine(void)
c62d2810 1254{
e328100e 1255 uint8 *target=XBuf+scanline*320+32;
1256
1257 LineUpdate(target);
c62d2810 1258
ea80a45b 1259 if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
1260
e328100e 1261 X6502_Run(256);
1262
f12b1f31 1263 // check: Battletoads & Double Dragon, Addams Family
1264 // sky glitches in SMB1 if done wrong
e328100e 1265 FakedLineUpdate();
1266
1267#ifdef FRAMESKIP
1268 if(!FSkip)
1269#endif
21afaa36 1270 if(scanline>=FSettings.FirstSLine && scanline<=FSettings.LastSLine)
1271 {
1272 if(SpriteON && spork)
1273 CopySprites(target);
e328100e 1274
21afaa36 1275 LineUpdateEnd(target);
1276 }
e328100e 1277 sphitx=0x100;
1278
1279 if(ScreenON || SpriteON)
1280 FetchSpriteData();
1281
1282 // DoHBlank();
1283 if(GameHBIRQHook && (ScreenON || SpriteON) && ((PPU[0]&0x38)!=0x18))
15300263 1284 {
e328100e 1285 X6502_Run(6);
1286 Fixit2();
1287 X6502_Run(4);
1288 GameHBIRQHook();
1289 X6502_Run(85-10-16);
c62d2810 1290 }
1291 else
1292 {
e328100e 1293 X6502_Run(6); // Tried 65, caused problems with Slalom(maybe others)
1294 Fixit2();
1295 X6502_Run(85-6-16);
c62d2810 1296 }
e328100e 1297
1298 if(SpriteON)
1299 RefreshSprites();
1300 if(GameHBIRQHook2 && (ScreenON || SpriteON))
1301 GameHBIRQHook2();
1302 scanline++;
1303 if (scanline<240)
1304 ResetRL(XBuf+scanline*320+32);
1305 X6502_Run(16);
c62d2810 1306}
c62d2810 1307
e328100e 1308
c62d2810 1309void EmLoop(void)
1310{
1311 for(;;)
1312 {
ea80a45b 1313 int x;
92e249b1 1314 uint32 scanlines_per_frame = PAL ? 312 : 262;
4fdfab07 1315 UpdateInput();
92764e62 1316 FCEU_ApplyPeriodicCheats();
4fdfab07 1317
1318 // FCEUPPU_Loop:
1319 if(ppudead) /* Needed for Knight Rider, possibly others. */
1320 {
6587f346 1321 //memset(XBuf, 0, 320*240);
4fdfab07 1322 X6502_Run(scanlines_per_frame*(256+85));
1323 ppudead--;
1324 goto update;
1325 }
ea80a45b 1326
c62d2810 1327 X6502_Run(256+85);
1328
1329 PPU[2]|=0x80;
1330 PPU[3]=PPUSPL=0; /* Not sure if this is correct. According
1331 to Matt Conte and my own tests, it is. Timing is probably
1332 off, though. NOTE: Not having this here
1333 breaks a Super Donkey Kong game. */
1334
1335 X6502_Run(12); /* I need to figure out the true nature and length
15300263 1336 of this delay.
c62d2810 1337 */
1338 if(FCEUGameInfo.type==GIT_NSF)
ea80a45b 1339 DoNSFFrame();
c62d2810 1340 else if(VBlankON)
1341 TriggerNMI();
1342
655f8df0 1343 // Note: this is needed for asm core
1344 // Warning: using 'scanline' var here breaks Castlevania III
1345 {
1346 int lines;
1347 X6502_Run(256+85-12);
1348 for (lines=scanlines_per_frame-242-1;lines;lines--)
1349 X6502_Run(256+85);
1350 }
1351 // X6502_Run((scanlines_per_frame-242)*(256+85)-12);
c62d2810 1352 PPU_status&=0x1f;
c62d2810 1353 X6502_Run(256);
ea80a45b 1354
c62d2810 1355 {
c62d2810 1356 if(ScreenON || SpriteON)
d97315ac 1357 {
c62d2810 1358 if(GameHBIRQHook)
1359 GameHBIRQHook();
ea80a45b 1360 if(PPU_hook)
1361 for(x=0;x<42;x++) {PPU_hook(0x2000); PPU_hook(0);} // ugh
d97315ac 1362 if(GameHBIRQHook2)
1363 GameHBIRQHook2();
1364 }
c62d2810 1365
4fdfab07 1366 X6502_Run(85-16);
c62d2810 1367
4fdfab07 1368 if(ScreenON || SpriteON)
1369 {
1370 RefreshAddr=TempAddr;
1371 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
1372 }
e328100e 1373 spork=0;
1374 ResetRL(XBuf+32);
4fdfab07 1375
1376 X6502_Run(16-kook);
1377 kook ^= 1;
c62d2810 1378 }
4fdfab07 1379
c62d2810 1380 if(FCEUGameInfo.type==GIT_NSF)
937bf65b 1381 {
6587f346 1382 // run scanlines for asm core to fuction
13624c8f 1383 for(scanline=0;scanline<240;scanline++)
1384 X6502_Run(256+85);
937bf65b 1385 }
c62d2810 1386 else
1387 {
1388 int x,max,maxref;
1389
1390 deemp=PPU[1]>>5;
4a1bf31b 1391 SetRefreshLine();
4fdfab07 1392 for(scanline=0;scanline<240;) // scanline is incremented in DoLine. Evil. :/
c62d2810 1393 {
1394 deempcnt[deemp]++;
e328100e 1395 DoLine();
c62d2810 1396 }
ea80a45b 1397 if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
c62d2810 1398 for(x=1,max=0,maxref=0;x<7;x++)
1399 {
1400 if(deempcnt[x]>max)
1401 {
1402 max=deempcnt[x];
1403 maxref=x;
1404 }
1405 deempcnt[x]=0;
1406 }
c62d2810 1407 SetNESDeemph(maxref,0);
1408 }
1409
4fdfab07 1410update:
47d0839e 1411 if(Exit)
1412 {
1413 //CloseGame();
1414 break;
1415 }
1416
c62d2810 1417 {
1418 int ssize;
1419
1420 ssize=FlushEmulateSound();
1421
4fdfab07 1422 timestampbase += timestamp;
1423 timestamp = 0;
1424
c62d2810 1425 #ifdef FRAMESKIP
1426 if(FSkip)
1427 {
1428 FCEU_PutImageDummy();
1429 FSkip--;
5232c20c 1430 FCEUD_Update(0,WaveFinalMono,ssize);
c62d2810 1431 }
1432 else
1433 #endif
1434 {
1435 FCEU_PutImage();
5232c20c 1436 FCEUD_Update(XBuf+8,WaveFinalMono,ssize);
c62d2810 1437 }
c62d2810 1438 }
1439
4fdfab07 1440 } // for
c62d2810 1441}
1442
1443#ifdef FPS
1444#include <sys/time.h>
1445uint64 frcount;
1446#endif
1447void FCEUI_Emulate(void)
1448{
1449 #ifdef FPS
1450 uint64 starttime,end;
1451 struct timeval tv;
1452 frcount=0;
1453 gettimeofday(&tv,0);
1454 starttime=((uint64)tv.tv_sec*1000000)+tv.tv_usec;
1455 #endif
1456 EmLoop();
1457
1458 #ifdef FPS
1459 // Probably won't work well on Windows port; for
1460 // debugging/speed testing.
1461 {
1462 uint64 w;
1463 int i,frac;
1464 gettimeofday(&tv,0);
1465 end=((uint64)tv.tv_sec*1000000)+tv.tv_usec;
1466 w=frcount*10000000000LL/(end-starttime);
1467 i=w/10000;
1468 frac=w-i*10000;
1469 printf("Average FPS: %d.%04d\n",i,frac);
1470 }
1471 #endif
1472
1473}
1474
1475void FCEUI_CloseGame(void)
1476{
1477 Exit=1;
1478}
1479
1480static void ResetPPU(void)
1481{
1482 VRAMBuffer=PPU[0]=PPU[1]=PPU[2]=PPU[3]=0;
1483 PPUSPL=0;
1484 PPUGenLatch=0;
1485 RefreshAddr=TempAddr=0;
1486 vtoggle = 0;
4fdfab07 1487 ppudead = 2;
1488 kook = 0;
c62d2810 1489}
1490
1491static void PowerPPU(void)
1492{
1493 memset(NTARAM,0x00,0x800);
1494 memset(PALRAM,0x00,0x20);
1495 memset(SPRAM,0x00,0x100);
1496 ResetPPU();
1497}
1498
1499void ResetNES(void)
1500{
92764e62 1501 if(!GameLoaded) return;
c4980f9e 1502 GameInterface(GI_RESETM2, 0);
c62d2810 1503 ResetSound();
1504 ResetPPU();
1505 X6502_Reset();
1506}
1507
b8da43fb 1508static void FCEU_MemoryRand(uint8 *ptr, uint32 size)
1509{
1510 int x=0;
1511 while(size)
1512 {
1513 *ptr=(x&4)?0xFF:0x00;
1514 x++;
1515 size--;
1516 ptr++;
1517 }
1518}
1519
15300263 1520void PowerNES(void)
c62d2810 1521{
1522 if(!GameLoaded) return;
1523
1524 FCEU_CheatResetRAM();
1525 FCEU_CheatAddRAM(2,0,RAM);
1526
1527 GeniePower();
1528
b8da43fb 1529#ifndef DEBUG_ASM_6502
1530 FCEU_MemoryRand(RAM,0x800);
1531#else
c62d2810 1532 memset(RAM,0x00,0x800);
b8da43fb 1533#endif
c62d2810 1534 ResetMapping();
c62d2810 1535 PowerSound();
1536 PowerPPU();
0bb3fe12 1537 GameInterface(GI_POWER, 0);
15d2d258 1538 if(FCEUGameInfo.type==GIT_VSUNI)
1539 FCEU_VSUniPower();
b8da43fb 1540#ifdef ASM_6502
1541 if (geniestage)
1542 GenieSetPages(0);
1543#endif
15d2d258 1544 timestampbase=0;
c62d2810 1545 X6502_Power();
15d2d258 1546 FCEU_PowerCheats();
c62d2810 1547}
1548
890e37ba 1549
1550/* savestate stuff */
1551uint16 TempAddrT,RefreshAddrT;
1552
1553SFORMAT FCEUPPU_STATEINFO[]={
1554 { NTARAM, 0x800, "NTAR"},
1555 { PALRAM, 0x20, "PRAM"},
1556 { SPRAM, 0x100, "SPRA"},
1557 { PPU, 0x4, "PPUR"},
1558 { &XOffset, 1, "XOFF"},
1559 { &vtoggle, 1, "VTOG"},
1560 { &RefreshAddrT, 2|RLSB, "RADD"},
1561 { &TempAddrT, 2|RLSB, "TADD"},
1562 { &VRAMBuffer, 1, "VBUF"},
1563 { &PPUGenLatch, 1, "PGEN"},
1564 // from 0.98.15
1565 { &kook, 1, "KOOK"},
1566 { &ppudead, 1, "DEAD"},
1567 { &PPUSPL, 1, "PSPL"},
1568 { 0 }
1569 };
1570
1571
ARM optimized FCE Ultra port