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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;
c0623dcf 607 int y;
c62d2810 608
078eb4c0 609 /* PRefreshLine() will not get called on skipped frames. This
610 * could cause a problem, but the solution would be rather complex,
611 * due to the current sprite 0 hit code.
612 */
c0623dcf 613 if(FSkip)
614 {
615 y=(int)SPRAM[0] + 1;
616 if(scanline==y && SpriteON) PPU_status|=0x40; // hack
617 return;
618 }
078eb4c0 619
620 if(scanline < FSettings.FirstSLine || scanline > FSettings.LastSLine)
e328100e 621 {
622 if(PPU_hook)
623 PRefreshLine();
c0623dcf 624 y=(int)SPRAM[0] + 1;
625 if(scanline==y && SpriteON) PPU_status|=0x40;
e328100e 626 }
627 else
628 {
629 if(ScreenON)
c62d2810 630 {
21afaa36 631 BGRender(target);
c62d2810 632 }
e328100e 633 else
c62d2810 634 {
e328100e 635 tem=Pal[0]|0x40;
636 tem|=tem << 8;
637 tem|=tem << 16;
638 FCEU_dwmemset(target,tem,256);
c62d2810 639 }
15300263 640 }
e328100e 641
c62d2810 642 if(InputScanlineHook)
e328100e 643 InputScanlineHook(target,spork?sprlinebuf:0,linestartts,256);
644}
645
646
647static void LineUpdateEnd(uint8 *target)
648{
649#ifdef GP2X
650 if(ScreenON || SpriteON) // Yes, very el-cheapo.
651 {
652 if(PPU[1]&0x01)
653 block_and(target, 256, 0x30);
654 }
655 if((PPU[1]>>5)==0x7)
656 block_or(target, 256, 0xc0);
657 else if(PPU[1]&0xE0)
658 block_or(target, 256, 0x40);
659 else
660 block_andor(target, 256, 0x3f, 0x80);
661#else
662 int x;
663
664 if(ScreenON || SpriteON) // Yes, very el-cheapo.
665 {
666 if(PPU[1]&0x01)
667 {
668 for(x=63;x>=0;x--)
669 *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])&0x30303030;
670 }
671 }
672 if((PPU[1]>>5)==0x7)
673 {
674 for(x=63;x>=0;x--)
675 *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0xc0c0c0c0;
676 }
677 else if(PPU[1]&0xE0)
678 for(x=63;x>=0;x--)
679 *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])|0x40404040;
680 else
681 for(x=63;x>=0;x--)
682 *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0x80808080;
683#endif
684
685 // black borders
686 ((uint32 *)target)[-2]=((uint32 *)target)[-1]=0;
687 ((uint32 *)target)[64]=((uint32 *)target)[65]=0;
c62d2810 688}
689
690#define PAL(c) ((c)+cc)
691
692
693static void PRefreshLine(void)
694{
078eb4c0 695 uint32 vofs;
696 int X1;
697 vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
698 void (*PPU_hook_)(uint32 A) = PPU_hook;
c62d2810 699
c62d2810 700
078eb4c0 701 for(X1=33;X1;X1--)
702 {
703 uint32 zz2;
704 uint32 vadr;
705
706 zz2=(RefreshAddr>>10)&3;
707 PPU_hook_(0x2000|(RefreshAddr&0xFFF));
708
709 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
710
711 PPU_hook_(vadr);
c62d2810 712
c62d2810 713 if((RefreshAddr&0x1f)==0x1f)
714 RefreshAddr^=0x41F;
715 else
716 RefreshAddr++;
078eb4c0 717 }
c62d2810 718}
719
4a1bf31b 720/* This high-level graphics MMC5 emulation code was written
721 for MMC5 carts in "CL" mode. It's probably not totally
722 correct for carts in "SL" mode.
723 */
724static void RefreshLine_MMC5Hack1(uint8 *P, uint32 vofs)
c62d2810 725{
4a1bf31b 726 int8 tochange, X1;
c62d2810 727
728 tochange=MMC5HackSPMode&0x1F;
729
730 for(X1=33;X1;X1--,P+=8)
731 {
732 uint8 *C;
5232c20c 733 uint8 cc,zz,zz2;
c62d2810 734 uint32 vadr;
735
15300263 736 if((tochange<=0 && MMC5HackSPMode&0x40) ||
c62d2810 737 (tochange>0 && !(MMC5HackSPMode&0x40)))
738 {
739 uint8 xs,ys;
740
15300263 741 xs=33-X1;
c62d2810 742 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
743 if(ys>=0x1E) ys-=0x1E;
744 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
745
746 C = MMC5HackVROMPTR+vadr;
747 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
748
749 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
750 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
751 }
752 else
753 {
754 zz=RefreshAddr&0x1F;
755 zz2=(RefreshAddr>>10)&3;
756 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
757 C = MMC5BGVRAMADR(vadr);
758 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
759 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
760 }
761 #include "fceline.h"
762
763 if((RefreshAddr&0x1f)==0x1f)
764 RefreshAddr^=0x41F;
765 else
766 RefreshAddr++;
767 tochange--;
768 }
4a1bf31b 769}
770
771static void RefreshLine_MMC5Hack2(uint8 *P, uint32 vofs)
772{
773 int8 tochange, X1;
c62d2810 774
775 tochange=MMC5HackSPMode&0x1F;
776
777 for(X1=33;X1;X1--,P+=8)
778 {
779 uint8 *C;
5232c20c 780 uint8 cc;
781 uint8 zz2;
c62d2810 782 uint32 vadr;
783
784 if((tochange<=0 && MMC5HackSPMode&0x40) ||
785 (tochange>0 && !(MMC5HackSPMode&0x40)))
786 {
787 uint8 xs,ys;
788
15300263 789 xs=33-X1;
c62d2810 790 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
791 if(ys>=0x1E) ys-=0x1E;
792 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
793
794 C = MMC5HackVROMPTR+vadr;
795 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
796
797 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
798 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
799 }
800 else
801 {
802 C=MMC5HackVROMPTR;
803 zz2=(RefreshAddr>>10)&3;
804 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
805 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
806 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
807 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
808 cc = vadr;
809 }
810 #include "fceline.h"
811 if((RefreshAddr&0x1f)==0x1f)
812 RefreshAddr^=0x41F;
813 else
814 RefreshAddr++;
815 tochange--;
816 }
4a1bf31b 817}
818
819static void RefreshLine_MMC5Hack3(uint8 *P, uint32 vofs)
820{
821 int8 X1;
c62d2810 822
c62d2810 823 for(X1=33;X1;X1--,P+=8)
824 {
15300263 825 uint8 *C;
5232c20c 826 uint8 cc;
827 uint8 zz2;
15300263 828 uint32 vadr;
c62d2810 829
830 C=MMC5HackVROMPTR;
831 zz2=(RefreshAddr>>10)&3;
832 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
15300263 833 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
c62d2810 834 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
835 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
836 cc = vadr;
837
838 #include "fceline.h"
839 if((RefreshAddr&0x1f)==0x1f)
840 RefreshAddr^=0x41F;
841 else
842 RefreshAddr++;
843 }
4a1bf31b 844}
845
846static void RefreshLine_MMC5Hack4(uint8 *P, uint32 vofs)
847{
848 int8 X1;
849
c62d2810 850 for(X1=33;X1;X1--,P+=8)
851 {
852 uint8 *C;
5232c20c 853 uint8 cc,zz,zz2;
c62d2810 854 uint32 vadr;
855
856 zz=RefreshAddr&0x1F;
857 zz2=(RefreshAddr>>10)&3;
858 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
859 C = MMC5BGVRAMADR(vadr);
860 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
861 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
862
863 #include "fceline.h"
15300263 864
c62d2810 865 if((RefreshAddr&0x1f)==0x1f)
866 RefreshAddr^=0x41F;
867 else
868 RefreshAddr++;
15300263 869 }
4a1bf31b 870}
871
872static void RefreshLine_PPU_hook(uint8 *P, uint32 vofs)
873{
874 int8 X1;
078eb4c0 875 void (*PPU_hook_)(uint32 A) = PPU_hook;
876 uint32 rfraddr = RefreshAddr;
877 uint8 *page = vnapage[(rfraddr>>10)&3];
c62d2810 878
c62d2810 879 for(X1=33;X1;X1--,P+=8)
880 {
15300263 881 uint8 *C;
078eb4c0 882 uint8 cc,zz;
15300263 883 uint32 vadr;
c62d2810 884
078eb4c0 885 zz=rfraddr&0x1F;
886 PPU_hook_(0x2000|(rfraddr&0xFFF));
887 cc=page[0x3c0+(zz>>2)+((rfraddr&0x380)>>4)];
888 cc=((cc >> ((zz&2) + ((rfraddr&0x40)>>4))) &3) <<2;
889 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
c62d2810 890 C = VRAMADR(vadr);
891
892 #include "fceline.h"
893
078eb4c0 894 PPU_hook_(vadr);
c62d2810 895
078eb4c0 896 if((rfraddr&0x1f)==0x1f) {
897 rfraddr^=0x41F;
898 page = vnapage[(rfraddr>>10)&3];
899 } else
900 rfraddr++;
c62d2810 901 }
078eb4c0 902 RefreshAddr = rfraddr;
4a1bf31b 903}
904
9115e7d2 905static void RefreshLine_normal(uint8 *P, uint32 vofs) // vofs is 0x107 max
4a1bf31b 906{
907 int8 X1;
9115e7d2 908 uint32 rfraddr = RefreshAddr;
909 uint8 *page = vnapage[(rfraddr>>10)&3];
910 uint32 cc2=0;
4a1bf31b 911
9115e7d2 912 if ((rfraddr&0xc)!=0)
913 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
914
915 for (X1=33;X1;X1--,P+=8)
c62d2810 916 {
9115e7d2 917 uint8 cc,*C;
c62d2810 918 uint32 vadr;
919
9115e7d2 920 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
c62d2810 921 C = VRAMADR(vadr);
9115e7d2 922 if ((rfraddr&0xc)==0)
923 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
924 cc=((cc2 >> ((rfraddr&2) + ((rfraddr&0x40)>>4) + ((rfraddr&0xc)<<1))) & 3) << 2;
4a1bf31b 925
9115e7d2 926 #include "fceline.h"
15300263 927
9115e7d2 928 if((rfraddr&0x1f)==0x1f) {
929 rfraddr^=0x41F;
930 page = vnapage[(rfraddr>>10)&3];
931 } else
932 rfraddr++;
c62d2810 933 }
9115e7d2 934 RefreshAddr = rfraddr;
4a1bf31b 935}
c62d2810 936
4a1bf31b 937static void SetRefreshLine(void)
938{
939 if(MMC5Hack && geniestage!=1)
940 {
941 if(MMC5HackCHRMode==0 && (MMC5HackSPMode&0x80))
942 {
943 if (RefreshLine != RefreshLine_MMC5Hack1) printf("set refr RefreshLine_MMC5Hack1\n");
944 RefreshLine = RefreshLine_MMC5Hack1;
945 }
946 else if(MMC5HackCHRMode==1 && (MMC5HackSPMode&0x80))
947 {
948 if (RefreshLine != RefreshLine_MMC5Hack2) printf("set refr RefreshLine_MMC5Hack2\n");
949 RefreshLine = RefreshLine_MMC5Hack2;
950 }
951 else if(MMC5HackCHRMode==1)
952 {
953 if (RefreshLine != RefreshLine_MMC5Hack3) printf("set refr RefreshLine_MMC5Hack3\n");
954 RefreshLine = RefreshLine_MMC5Hack3;
955 }
956 else
957 {
958 if (RefreshLine != RefreshLine_MMC5Hack4) printf("set refr RefreshLine_MMC5Hack4\n");
959 RefreshLine = RefreshLine_MMC5Hack4;
960 }
961 } // End if(MMC5Hack)
962 else if(PPU_hook)
963 {
964 if (RefreshLine != RefreshLine_PPU_hook) printf("set refr RefreshLine_PPU_hook\n");
965 RefreshLine = RefreshLine_PPU_hook;
966 }
967 else
968 {
969 if (RefreshLine != RefreshLine_normal) printf("set refr RefreshLine_normal\n");
970 RefreshLine = RefreshLine_normal;
971 }
c62d2810 972}
973
4fdfab07 974static INLINE
937bf65b 975void Fixit2(void)
c62d2810 976{
977 if(ScreenON || SpriteON)
978 {
979 uint32 rad=RefreshAddr;
980 rad&=0xFBE0;
981 rad|=TempAddr&0x041f;
982 RefreshAddr=rad;
983 //PPU_hook(RefreshAddr,-1);
984 }
985}
986
4fdfab07 987static INLINE
937bf65b 988void Fixit1(void)
c62d2810 989{
990 if(ScreenON || SpriteON)
991 {
992 uint32 rad=RefreshAddr;
993
994 if((rad&0x7000)==0x7000)
995 {
996 rad^=0x7000;
997 if((rad&0x3E0)==0x3A0)
998 {
999 rad^=0x3A0;
1000 rad^=0x800;
1001 }
1002 else
1003 {
1004 if((rad&0x3E0)==0x3e0)
1005 rad^=0x3e0;
1006 else rad+=0x20;
1007 }
1008 }
1009 else
1010 rad+=0x1000;
1011 RefreshAddr=rad;
1012 //PPU_hook(RefreshAddr,-1);
1013 }
1014}
1015
937bf65b 1016
5232c20c 1017// ============================//
1018// end of new code
1019// ===========================//
c62d2810 1020
1021void ResetMapping(void)
1022{
1023 int x;
1024
1025 SetReadHandler(0x0000,0xFFFF,ANull);
1026 SetWriteHandler(0x0000,0xFFFF,BNull);
1027
1028 SetReadHandler(0,0x7FF,ARAML);
1029 SetWriteHandler(0,0x7FF,BRAML);
1030
1031 SetReadHandler(0x800,0x1FFF,ARAMH); /* Part of a little */
1032 SetWriteHandler(0x800,0x1FFF,BRAMH); /* hack for a small speed boost. */
1033
1034 for(x=0x2000;x<0x4000;x+=8)
1035 {
1036 ARead[x]=A200x;
1037 BWrite[x]=B2000;
1038 ARead[x+1]=A200x;
1039 BWrite[x+1]=B2001;
1040 ARead[x+2]=A2002;
1041 BWrite[x+2]=B2002;
1042 ARead[x+3]=A200x;
1043 BWrite[x+3]=B2003;
1044 ARead[x+4]=A200x;
1045 BWrite[x+4]=B2004;
1046 ARead[x+5]=A200x;
1047 BWrite[x+5]=B2005;
1048 ARead[x+6]=A200x;
1049 BWrite[x+6]=B2006;
1050 ARead[x+7]=A2007;
1051 BWrite[x+7]=B2007;
1052 }
1053
1054 BWrite[0x4014]=B4014;
1055 SetNESSoundMap();
1056 InitializeInput();
1057}
1058
1059int GameLoaded=0;
1060void CloseGame(void)
1061{
c4980f9e 1062 FCEUI_StopMovie();
c62d2810 1063 if(GameLoaded)
1064 {
1065 if(FCEUGameInfo.type!=GIT_NSF)
92764e62 1066 FCEU_FlushGameCheats(0,0);
c62d2810 1067 #ifdef NETWORK
1068 if(FSettings.NetworkPlay) KillNetplay();
15300263 1069 #endif
c4980f9e 1070 GameInterface(GI_CLOSE, 0);
c62d2810 1071 CloseGenie();
1072 GameLoaded=0;
1073 }
1074}
1075
1076void ResetGameLoaded(void)
1077{
1078 if(GameLoaded) CloseGame();
1079 GameStateRestore=0;
1080 PPU_hook=0;
d97315ac 1081 GameHBIRQHook=GameHBIRQHook2=0;
c62d2810 1082 GameExpSound.Fill=0;
1083 GameExpSound.RChange=0;
1084 if(GameExpSound.Kill)
1085 GameExpSound.Kill();
1086 GameExpSound.Kill=0;
1087 MapIRQHook=0;
1088 MMC5Hack=0;
1089 PAL&=1;
1090 pale=0;
1091
1092 FCEUGameInfo.name=0;
1093 FCEUGameInfo.type=GIT_CART;
1094 FCEUGameInfo.vidsys=GIV_USER;
1095 FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=-1;
1096 FCEUGameInfo.inputfc=-1;
1097}
1098
5a2aa426 1099char lastLoadedGameName [2048];
989672f4 1100int LoadGameLastError = 0;
d97315ac 1101int UNIFLoad(const char *name, int fp);
1102int iNESLoad(const char *name, int fp);
1103int FDSLoad(const char *name, int fp);
1104int NSFLoad(int fp);
5a2aa426 1105
c62d2810 1106FCEUGI *FCEUI_LoadGame(char *name)
1107{
5a2aa426 1108 char name2[512];
1109 int have_movie = 0;
c62d2810 1110 int fp;
1111
b2b95d2e 1112 //Exit=1;
989672f4 1113 LoadGameLastError = 0;
c62d2810 1114 ResetGameLoaded();
1115
5a2aa426 1116 strncpy(name2, name, sizeof(name2));
1117 name2[sizeof(name2)-1] = 0;
1118
1119 fp=FCEU_fopen(name2,"rb");
c62d2810 1120 if(!fp)
1121 {
1122 FCEU_PrintError("Error opening \"%s\"!",name);
989672f4 1123 LoadGameLastError = 1;
c62d2810 1124 return 0;
1125 }
1126
5a2aa426 1127 {
1128 char *p = name2 + strlen(name2) - 4;
1129 if (strcmp(p, ".fcm") == 0)
1130 {
1131 // movie detected
1132 printf("movie detected\n");
1133 FCEU_fclose(fp);
1134 *p = 0;
1135 fp=FCEU_fopen(name2,"rb");
b2b95d2e 1136 if (!fp && p - name2 > 2) p[-2] = 0;
1137 fp=FCEU_fopen(name2,"rb");
5a2aa426 1138 if (!fp) {
1139 printf("no ROM for movie\n");
989672f4 1140 LoadGameLastError = 2;
5a2aa426 1141 return 0;
1142 }
1143 have_movie = 1;
1144 }
1145 }
1146
5a2aa426 1147 GetFileBase(name2);
1148 if(iNESLoad(name2,fp))
c62d2810 1149 goto endlseq;
1150 if(NSFLoad(fp))
1151 goto endlseq;
5a2aa426 1152 if(FDSLoad(name2,fp))
c62d2810 1153 goto endlseq;
5a2aa426 1154 if(UNIFLoad(name2,fp))
c62d2810 1155 goto endlseq;
1156
1157 FCEU_PrintError("An error occurred while loading the file.");
1158 FCEU_fclose(fp);
989672f4 1159 // format handlers may set LoadGameLastError themselves.
1160 if (LoadGameLastError == 0) LoadGameLastError = 3;
c62d2810 1161 return 0;
1162
1163 endlseq:
1164 FCEU_fclose(fp);
15300263 1165 GameLoaded=1;
c62d2810 1166
1167 FCEU_ResetVidSys();
1168 if(FCEUGameInfo.type!=GIT_NSF)
1169 if(FSettings.GameGenie)
1170 OpenGenie();
1171
1172 PowerNES();
1173 #ifdef NETWORK
1174 if(FSettings.NetworkPlay) InitNetplay();
1175 #endif
1176 SaveStateRefresh();
1177 if(FCEUGameInfo.type!=GIT_NSF)
1178 {
92764e62 1179 FCEU_LoadGamePalette();
1180 FCEU_LoadGameCheats(0);
c62d2810 1181 }
15300263 1182
c62d2810 1183 FCEU_ResetPalette();
1184 Exit=0;
5a2aa426 1185
1186 if (have_movie)
1187 FCEUI_LoadMovie(name, 1);
989672f4 1188
1189 strcpy(lastLoadedGameName, name2);
1190
c62d2810 1191 return(&FCEUGameInfo);
1192}
1193
1194
1195void FCEU_ResetVidSys(void)
1196{
1197 int w;
1198
1199 if(FCEUGameInfo.vidsys==GIV_NTSC)
1200 w=0;
1201 else if(FCEUGameInfo.vidsys==GIV_PAL)
1202 w=1;
1203 else
1204 w=FSettings.PAL;
1205
1206 if(w)
1207 {
1208 PAL=1;
c62d2810 1209 FSettings.FirstSLine=FSettings.UsrFirstSLine[1];
1210 FSettings.LastSLine=FSettings.UsrLastSLine[1];
1211 }
1212 else
1213 {
1214 PAL=0;
c62d2810 1215 FSettings.FirstSLine=FSettings.UsrFirstSLine[0];
1216 FSettings.LastSLine=FSettings.UsrLastSLine[0];
1217 }
0b65fdb3 1218 printf("ResetVidSys: PAL = %i\n", PAL);
c62d2810 1219 SetSoundVariables();
1220}
1221
1222int FCEUI_Initialize(void)
1223{
1224 if(!InitVirtualVideo())
1225 return 0;
1226 memset(&FSettings,0,sizeof(FSettings));
1227 FSettings.UsrFirstSLine[0]=8;
1228 FSettings.UsrFirstSLine[1]=0;
1229 FSettings.UsrLastSLine[0]=FSettings.UsrLastSLine[1]=239;
92764e62 1230 FSettings.SoundVolume=100;
c62d2810 1231 return 1;
1232}
1233
ea80a45b 1234void MMC5_hb(int); /* Ugh ugh ugh. */
e328100e 1235static void DoLine(void)
c62d2810 1236{
e328100e 1237 uint8 *target=XBuf+scanline*320+32;
1238
1239 LineUpdate(target);
c62d2810 1240
ea80a45b 1241 if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
1242
e328100e 1243 X6502_Run(256);
1244
f12b1f31 1245 // check: Battletoads & Double Dragon, Addams Family
1246 // sky glitches in SMB1 if done wrong
e328100e 1247 FakedLineUpdate();
1248
1249#ifdef FRAMESKIP
1250 if(!FSkip)
1251#endif
21afaa36 1252 if(scanline>=FSettings.FirstSLine && scanline<=FSettings.LastSLine)
1253 {
1254 if(SpriteON && spork)
1255 CopySprites(target);
e328100e 1256
21afaa36 1257 LineUpdateEnd(target);
1258 }
e328100e 1259 sphitx=0x100;
1260
1261 if(ScreenON || SpriteON)
1262 FetchSpriteData();
1263
1264 // DoHBlank();
1265 if(GameHBIRQHook && (ScreenON || SpriteON) && ((PPU[0]&0x38)!=0x18))
15300263 1266 {
e328100e 1267 X6502_Run(6);
1268 Fixit2();
1269 X6502_Run(4);
1270 GameHBIRQHook();
1271 X6502_Run(85-10-16);
c62d2810 1272 }
1273 else
1274 {
e328100e 1275 X6502_Run(6); // Tried 65, caused problems with Slalom(maybe others)
1276 Fixit2();
1277 X6502_Run(85-6-16);
c62d2810 1278 }
e328100e 1279
1280 if(SpriteON)
1281 RefreshSprites();
1282 if(GameHBIRQHook2 && (ScreenON || SpriteON))
1283 GameHBIRQHook2();
1284 scanline++;
1285 if (scanline<240)
1286 ResetRL(XBuf+scanline*320+32);
1287 X6502_Run(16);
c62d2810 1288}
c62d2810 1289
e328100e 1290
c62d2810 1291void EmLoop(void)
1292{
1293 for(;;)
1294 {
ea80a45b 1295 int x;
92e249b1 1296 uint32 scanlines_per_frame = PAL ? 312 : 262;
4fdfab07 1297 UpdateInput();
92764e62 1298 FCEU_ApplyPeriodicCheats();
4fdfab07 1299
1300 // FCEUPPU_Loop:
1301 if(ppudead) /* Needed for Knight Rider, possibly others. */
1302 {
6587f346 1303 //memset(XBuf, 0, 320*240);
4fdfab07 1304 X6502_Run(scanlines_per_frame*(256+85));
1305 ppudead--;
1306 goto update;
1307 }
ea80a45b 1308
c62d2810 1309 X6502_Run(256+85);
1310
1311 PPU[2]|=0x80;
1312 PPU[3]=PPUSPL=0; /* Not sure if this is correct. According
1313 to Matt Conte and my own tests, it is. Timing is probably
1314 off, though. NOTE: Not having this here
1315 breaks a Super Donkey Kong game. */
1316
1317 X6502_Run(12); /* I need to figure out the true nature and length
15300263 1318 of this delay.
c62d2810 1319 */
1320 if(FCEUGameInfo.type==GIT_NSF)
ea80a45b 1321 DoNSFFrame();
c62d2810 1322 else if(VBlankON)
1323 TriggerNMI();
1324
655f8df0 1325 // Note: this is needed for asm core
1326 // Warning: using 'scanline' var here breaks Castlevania III
1327 {
1328 int lines;
1329 X6502_Run(256+85-12);
1330 for (lines=scanlines_per_frame-242-1;lines;lines--)
1331 X6502_Run(256+85);
1332 }
1333 // X6502_Run((scanlines_per_frame-242)*(256+85)-12);
c62d2810 1334 PPU_status&=0x1f;
c62d2810 1335 X6502_Run(256);
ea80a45b 1336
c62d2810 1337 {
c62d2810 1338 if(ScreenON || SpriteON)
d97315ac 1339 {
c62d2810 1340 if(GameHBIRQHook)
1341 GameHBIRQHook();
ea80a45b 1342 if(PPU_hook)
1343 for(x=0;x<42;x++) {PPU_hook(0x2000); PPU_hook(0);} // ugh
d97315ac 1344 if(GameHBIRQHook2)
1345 GameHBIRQHook2();
1346 }
c62d2810 1347
4fdfab07 1348 X6502_Run(85-16);
c62d2810 1349
4fdfab07 1350 if(ScreenON || SpriteON)
1351 {
1352 RefreshAddr=TempAddr;
1353 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
1354 }
e328100e 1355 spork=0;
1356 ResetRL(XBuf+32);
4fdfab07 1357
1358 X6502_Run(16-kook);
1359 kook ^= 1;
c62d2810 1360 }
4fdfab07 1361
c62d2810 1362 if(FCEUGameInfo.type==GIT_NSF)
937bf65b 1363 {
6587f346 1364 // run scanlines for asm core to fuction
13624c8f 1365 for(scanline=0;scanline<240;scanline++)
1366 X6502_Run(256+85);
937bf65b 1367 }
c62d2810 1368 else
1369 {
1370 int x,max,maxref;
1371
1372 deemp=PPU[1]>>5;
4a1bf31b 1373 SetRefreshLine();
4fdfab07 1374 for(scanline=0;scanline<240;) // scanline is incremented in DoLine. Evil. :/
c62d2810 1375 {
1376 deempcnt[deemp]++;
e328100e 1377 DoLine();
c62d2810 1378 }
ea80a45b 1379 if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
c62d2810 1380 for(x=1,max=0,maxref=0;x<7;x++)
1381 {
1382 if(deempcnt[x]>max)
1383 {
1384 max=deempcnt[x];
1385 maxref=x;
1386 }
1387 deempcnt[x]=0;
1388 }
c62d2810 1389 SetNESDeemph(maxref,0);
1390 }
1391
4fdfab07 1392update:
47d0839e 1393 if(Exit)
1394 {
1395 //CloseGame();
1396 break;
1397 }
1398
c62d2810 1399 {
1400 int ssize;
1401
1402 ssize=FlushEmulateSound();
1403
4fdfab07 1404 timestampbase += timestamp;
1405 timestamp = 0;
1406
c62d2810 1407 #ifdef FRAMESKIP
1408 if(FSkip)
1409 {
1410 FCEU_PutImageDummy();
1411 FSkip--;
5232c20c 1412 FCEUD_Update(0,WaveFinalMono,ssize);
c62d2810 1413 }
1414 else
1415 #endif
1416 {
1417 FCEU_PutImage();
5232c20c 1418 FCEUD_Update(XBuf+8,WaveFinalMono,ssize);
c62d2810 1419 }
c62d2810 1420 }
1421
4fdfab07 1422 } // for
c62d2810 1423}
1424
1425#ifdef FPS
1426#include <sys/time.h>
1427uint64 frcount;
1428#endif
1429void FCEUI_Emulate(void)
1430{
1431 #ifdef FPS
1432 uint64 starttime,end;
1433 struct timeval tv;
1434 frcount=0;
1435 gettimeofday(&tv,0);
1436 starttime=((uint64)tv.tv_sec*1000000)+tv.tv_usec;
1437 #endif
1438 EmLoop();
1439
1440 #ifdef FPS
1441 // Probably won't work well on Windows port; for
1442 // debugging/speed testing.
1443 {
1444 uint64 w;
1445 int i,frac;
1446 gettimeofday(&tv,0);
1447 end=((uint64)tv.tv_sec*1000000)+tv.tv_usec;
1448 w=frcount*10000000000LL/(end-starttime);
1449 i=w/10000;
1450 frac=w-i*10000;
1451 printf("Average FPS: %d.%04d\n",i,frac);
1452 }
1453 #endif
1454
1455}
1456
1457void FCEUI_CloseGame(void)
1458{
1459 Exit=1;
1460}
1461
1462static void ResetPPU(void)
1463{
1464 VRAMBuffer=PPU[0]=PPU[1]=PPU[2]=PPU[3]=0;
1465 PPUSPL=0;
1466 PPUGenLatch=0;
1467 RefreshAddr=TempAddr=0;
1468 vtoggle = 0;
4fdfab07 1469 ppudead = 2;
1470 kook = 0;
c62d2810 1471}
1472
1473static void PowerPPU(void)
1474{
1475 memset(NTARAM,0x00,0x800);
1476 memset(PALRAM,0x00,0x20);
1477 memset(SPRAM,0x00,0x100);
1478 ResetPPU();
1479}
1480
1481void ResetNES(void)
1482{
92764e62 1483 if(!GameLoaded) return;
c4980f9e 1484 GameInterface(GI_RESETM2, 0);
c62d2810 1485 ResetSound();
1486 ResetPPU();
1487 X6502_Reset();
1488}
1489
b8da43fb 1490static void FCEU_MemoryRand(uint8 *ptr, uint32 size)
1491{
1492 int x=0;
1493 while(size)
1494 {
1495 *ptr=(x&4)?0xFF:0x00;
1496 x++;
1497 size--;
1498 ptr++;
1499 }
1500}
1501
15300263 1502void PowerNES(void)
c62d2810 1503{
1504 if(!GameLoaded) return;
1505
1506 FCEU_CheatResetRAM();
1507 FCEU_CheatAddRAM(2,0,RAM);
1508
1509 GeniePower();
1510
b8da43fb 1511#ifndef DEBUG_ASM_6502
1512 FCEU_MemoryRand(RAM,0x800);
1513#else
c62d2810 1514 memset(RAM,0x00,0x800);
b8da43fb 1515#endif
c62d2810 1516 ResetMapping();
c4980f9e 1517 GameInterface(GI_POWER, 0);
c62d2810 1518 PowerSound();
1519 PowerPPU();
1520 timestampbase=0;
b8da43fb 1521#ifdef ASM_6502
1522 if (geniestage)
1523 GenieSetPages(0);
1524#endif
c62d2810 1525 X6502_Power();
1526}
1527
890e37ba 1528
1529/* savestate stuff */
1530uint16 TempAddrT,RefreshAddrT;
1531
1532SFORMAT FCEUPPU_STATEINFO[]={
1533 { NTARAM, 0x800, "NTAR"},
1534 { PALRAM, 0x20, "PRAM"},
1535 { SPRAM, 0x100, "SPRA"},
1536 { PPU, 0x4, "PPUR"},
1537 { &XOffset, 1, "XOFF"},
1538 { &vtoggle, 1, "VTOG"},
1539 { &RefreshAddrT, 2|RLSB, "RADD"},
1540 { &TempAddrT, 2|RLSB, "TADD"},
1541 { &VRAMBuffer, 1, "VBUF"},
1542 { &PPUGenLatch, 1, "PGEN"},
1543 // from 0.98.15
1544 { &kook, 1, "KOOK"},
1545 { &ppudead, 1, "DEAD"},
1546 { &PPUSPL, 1, "PSPL"},
1547 { 0 }
1548 };
1549
1550
ARM optimized FCE Ultra port