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merged ppu code, added input+zapper, FDS/VS insert in menu
[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;
98void (*GameInterface)(int h);
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
e328100e 608 if(FSkip)
609 {
610 if(PPU_hook)
611 PRefreshLine();
612 }
613 else
614 {
615 if(ScreenON)
c62d2810 616 {
0b65fdb3 617 if(scanline>=FSettings.FirstSLine && scanline<=FSettings.LastSLine)
c62d2810 618 BGRender(target);
619 else
620 {
621 if(PPU_hook)
622 PRefreshLine();
623 }
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{
687 uint32 vofs;
688 uint8 X1;
689
690 vofs = 0;
691 if (BGAdrHI) vofs = 0x1000;
692
693 vofs+=(RefreshAddr>>12)&7;
694
695 for(X1=33;X1;X1--)
696 {
697 register uint8 no;
698 register uint8 zz2;
699 zz2=(uint8)((RefreshAddr>>10)&3);
700 PPU_hook(0x2000|(RefreshAddr&0xFFF));
701 no = vnapage[zz2][(RefreshAddr&0x3ff)];
702 PPU_hook((no<<4)+vofs);
703 if((RefreshAddr&0x1f)==0x1f)
704 RefreshAddr^=0x41F;
705 else
706 RefreshAddr++;
707 }
708}
709
4a1bf31b 710/* This high-level graphics MMC5 emulation code was written
711 for MMC5 carts in "CL" mode. It's probably not totally
712 correct for carts in "SL" mode.
713 */
714static void RefreshLine_MMC5Hack1(uint8 *P, uint32 vofs)
c62d2810 715{
4a1bf31b 716 int8 tochange, X1;
c62d2810 717
718 tochange=MMC5HackSPMode&0x1F;
719
720 for(X1=33;X1;X1--,P+=8)
721 {
722 uint8 *C;
5232c20c 723 uint8 cc,zz,zz2;
c62d2810 724 uint32 vadr;
725
15300263 726 if((tochange<=0 && MMC5HackSPMode&0x40) ||
c62d2810 727 (tochange>0 && !(MMC5HackSPMode&0x40)))
728 {
729 uint8 xs,ys;
730
15300263 731 xs=33-X1;
c62d2810 732 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
733 if(ys>=0x1E) ys-=0x1E;
734 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
735
736 C = MMC5HackVROMPTR+vadr;
737 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
738
739 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
740 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
741 }
742 else
743 {
744 zz=RefreshAddr&0x1F;
745 zz2=(RefreshAddr>>10)&3;
746 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
747 C = MMC5BGVRAMADR(vadr);
748 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
749 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
750 }
751 #include "fceline.h"
752
753 if((RefreshAddr&0x1f)==0x1f)
754 RefreshAddr^=0x41F;
755 else
756 RefreshAddr++;
757 tochange--;
758 }
4a1bf31b 759}
760
761static void RefreshLine_MMC5Hack2(uint8 *P, uint32 vofs)
762{
763 int8 tochange, X1;
c62d2810 764
765 tochange=MMC5HackSPMode&0x1F;
766
767 for(X1=33;X1;X1--,P+=8)
768 {
769 uint8 *C;
5232c20c 770 uint8 cc;
771 uint8 zz2;
c62d2810 772 uint32 vadr;
773
774 if((tochange<=0 && MMC5HackSPMode&0x40) ||
775 (tochange>0 && !(MMC5HackSPMode&0x40)))
776 {
777 uint8 xs,ys;
778
15300263 779 xs=33-X1;
c62d2810 780 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
781 if(ys>=0x1E) ys-=0x1E;
782 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
783
784 C = MMC5HackVROMPTR+vadr;
785 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
786
787 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
788 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
789 }
790 else
791 {
792 C=MMC5HackVROMPTR;
793 zz2=(RefreshAddr>>10)&3;
794 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
795 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
796 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
797 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
798 cc = vadr;
799 }
800 #include "fceline.h"
801 if((RefreshAddr&0x1f)==0x1f)
802 RefreshAddr^=0x41F;
803 else
804 RefreshAddr++;
805 tochange--;
806 }
4a1bf31b 807}
808
809static void RefreshLine_MMC5Hack3(uint8 *P, uint32 vofs)
810{
811 int8 X1;
c62d2810 812
c62d2810 813 for(X1=33;X1;X1--,P+=8)
814 {
15300263 815 uint8 *C;
5232c20c 816 uint8 cc;
817 uint8 zz2;
15300263 818 uint32 vadr;
c62d2810 819
820 C=MMC5HackVROMPTR;
821 zz2=(RefreshAddr>>10)&3;
822 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
15300263 823 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
c62d2810 824 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
825 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
826 cc = vadr;
827
828 #include "fceline.h"
829 if((RefreshAddr&0x1f)==0x1f)
830 RefreshAddr^=0x41F;
831 else
832 RefreshAddr++;
833 }
4a1bf31b 834}
835
836static void RefreshLine_MMC5Hack4(uint8 *P, uint32 vofs)
837{
838 int8 X1;
839
c62d2810 840 for(X1=33;X1;X1--,P+=8)
841 {
842 uint8 *C;
5232c20c 843 uint8 cc,zz,zz2;
c62d2810 844 uint32 vadr;
845
846 zz=RefreshAddr&0x1F;
847 zz2=(RefreshAddr>>10)&3;
848 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
849 C = MMC5BGVRAMADR(vadr);
850 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
851 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
852
853 #include "fceline.h"
15300263 854
c62d2810 855 if((RefreshAddr&0x1f)==0x1f)
856 RefreshAddr^=0x41F;
857 else
858 RefreshAddr++;
15300263 859 }
4a1bf31b 860}
861
862static void RefreshLine_PPU_hook(uint8 *P, uint32 vofs)
863{
864 int8 X1;
c62d2810 865
c62d2810 866 for(X1=33;X1;X1--,P+=8)
867 {
15300263 868 uint8 *C;
5232c20c 869 uint8 cc,zz,zz2;
15300263 870 uint32 vadr;
c62d2810 871
872 zz=RefreshAddr&0x1F;
873 zz2=(RefreshAddr>>10)&3;
874 PPU_hook(0x2000|(RefreshAddr&0xFFF));
875 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
876 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
877 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
878 C = VRAMADR(vadr);
879
880 #include "fceline.h"
881
882 PPU_hook(vadr);
883
884 if((RefreshAddr&0x1f)==0x1f)
885 RefreshAddr^=0x41F;
886 else
887 RefreshAddr++;
888 }
4a1bf31b 889}
890
9115e7d2 891static void RefreshLine_normal(uint8 *P, uint32 vofs) // vofs is 0x107 max
4a1bf31b 892{
893 int8 X1;
9115e7d2 894 uint32 rfraddr = RefreshAddr;
895 uint8 *page = vnapage[(rfraddr>>10)&3];
896 uint32 cc2=0;
4a1bf31b 897
9115e7d2 898 if ((rfraddr&0xc)!=0)
899 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
900
901 for (X1=33;X1;X1--,P+=8)
c62d2810 902 {
9115e7d2 903 uint8 cc,*C;
c62d2810 904 uint32 vadr;
905
9115e7d2 906 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
c62d2810 907 C = VRAMADR(vadr);
9115e7d2 908 if ((rfraddr&0xc)==0)
909 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
910 cc=((cc2 >> ((rfraddr&2) + ((rfraddr&0x40)>>4) + ((rfraddr&0xc)<<1))) & 3) << 2;
4a1bf31b 911
9115e7d2 912 #include "fceline.h"
15300263 913
9115e7d2 914 if((rfraddr&0x1f)==0x1f) {
915 rfraddr^=0x41F;
916 page = vnapage[(rfraddr>>10)&3];
917 } else
918 rfraddr++;
c62d2810 919 }
9115e7d2 920 RefreshAddr = rfraddr;
4a1bf31b 921}
c62d2810 922
4a1bf31b 923static void SetRefreshLine(void)
924{
925 if(MMC5Hack && geniestage!=1)
926 {
927 if(MMC5HackCHRMode==0 && (MMC5HackSPMode&0x80))
928 {
929 if (RefreshLine != RefreshLine_MMC5Hack1) printf("set refr RefreshLine_MMC5Hack1\n");
930 RefreshLine = RefreshLine_MMC5Hack1;
931 }
932 else if(MMC5HackCHRMode==1 && (MMC5HackSPMode&0x80))
933 {
934 if (RefreshLine != RefreshLine_MMC5Hack2) printf("set refr RefreshLine_MMC5Hack2\n");
935 RefreshLine = RefreshLine_MMC5Hack2;
936 }
937 else if(MMC5HackCHRMode==1)
938 {
939 if (RefreshLine != RefreshLine_MMC5Hack3) printf("set refr RefreshLine_MMC5Hack3\n");
940 RefreshLine = RefreshLine_MMC5Hack3;
941 }
942 else
943 {
944 if (RefreshLine != RefreshLine_MMC5Hack4) printf("set refr RefreshLine_MMC5Hack4\n");
945 RefreshLine = RefreshLine_MMC5Hack4;
946 }
947 } // End if(MMC5Hack)
948 else if(PPU_hook)
949 {
950 if (RefreshLine != RefreshLine_PPU_hook) printf("set refr RefreshLine_PPU_hook\n");
951 RefreshLine = RefreshLine_PPU_hook;
952 }
953 else
954 {
955 if (RefreshLine != RefreshLine_normal) printf("set refr RefreshLine_normal\n");
956 RefreshLine = RefreshLine_normal;
957 }
c62d2810 958}
959
4fdfab07 960static INLINE
937bf65b 961void Fixit2(void)
c62d2810 962{
963 if(ScreenON || SpriteON)
964 {
965 uint32 rad=RefreshAddr;
966 rad&=0xFBE0;
967 rad|=TempAddr&0x041f;
968 RefreshAddr=rad;
969 //PPU_hook(RefreshAddr,-1);
970 }
971}
972
4fdfab07 973static INLINE
937bf65b 974void Fixit1(void)
c62d2810 975{
976 if(ScreenON || SpriteON)
977 {
978 uint32 rad=RefreshAddr;
979
980 if((rad&0x7000)==0x7000)
981 {
982 rad^=0x7000;
983 if((rad&0x3E0)==0x3A0)
984 {
985 rad^=0x3A0;
986 rad^=0x800;
987 }
988 else
989 {
990 if((rad&0x3E0)==0x3e0)
991 rad^=0x3e0;
992 else rad+=0x20;
993 }
994 }
995 else
996 rad+=0x1000;
997 RefreshAddr=rad;
998 //PPU_hook(RefreshAddr,-1);
999 }
1000}
1001
937bf65b 1002
5232c20c 1003// ============================//
1004// end of new code
1005// ===========================//
c62d2810 1006
1007void ResetMapping(void)
1008{
1009 int x;
1010
1011 SetReadHandler(0x0000,0xFFFF,ANull);
1012 SetWriteHandler(0x0000,0xFFFF,BNull);
1013
1014 SetReadHandler(0,0x7FF,ARAML);
1015 SetWriteHandler(0,0x7FF,BRAML);
1016
1017 SetReadHandler(0x800,0x1FFF,ARAMH); /* Part of a little */
1018 SetWriteHandler(0x800,0x1FFF,BRAMH); /* hack for a small speed boost. */
1019
1020 for(x=0x2000;x<0x4000;x+=8)
1021 {
1022 ARead[x]=A200x;
1023 BWrite[x]=B2000;
1024 ARead[x+1]=A200x;
1025 BWrite[x+1]=B2001;
1026 ARead[x+2]=A2002;
1027 BWrite[x+2]=B2002;
1028 ARead[x+3]=A200x;
1029 BWrite[x+3]=B2003;
1030 ARead[x+4]=A200x;
1031 BWrite[x+4]=B2004;
1032 ARead[x+5]=A200x;
1033 BWrite[x+5]=B2005;
1034 ARead[x+6]=A200x;
1035 BWrite[x+6]=B2006;
1036 ARead[x+7]=A2007;
1037 BWrite[x+7]=B2007;
1038 }
1039
1040 BWrite[0x4014]=B4014;
1041 SetNESSoundMap();
1042 InitializeInput();
1043}
1044
1045int GameLoaded=0;
1046void CloseGame(void)
1047{
1048 if(GameLoaded)
1049 {
1050 if(FCEUGameInfo.type!=GIT_NSF)
92764e62 1051 FCEU_FlushGameCheats(0,0);
c62d2810 1052 #ifdef NETWORK
1053 if(FSettings.NetworkPlay) KillNetplay();
15300263 1054 #endif
c62d2810 1055 GameInterface(GI_CLOSE);
1056 CloseGenie();
1057 GameLoaded=0;
1058 }
1059}
1060
1061void ResetGameLoaded(void)
1062{
1063 if(GameLoaded) CloseGame();
1064 GameStateRestore=0;
1065 PPU_hook=0;
d97315ac 1066 GameHBIRQHook=GameHBIRQHook2=0;
c62d2810 1067 GameExpSound.Fill=0;
1068 GameExpSound.RChange=0;
1069 if(GameExpSound.Kill)
1070 GameExpSound.Kill();
1071 GameExpSound.Kill=0;
1072 MapIRQHook=0;
1073 MMC5Hack=0;
1074 PAL&=1;
1075 pale=0;
1076
1077 FCEUGameInfo.name=0;
1078 FCEUGameInfo.type=GIT_CART;
1079 FCEUGameInfo.vidsys=GIV_USER;
1080 FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=-1;
1081 FCEUGameInfo.inputfc=-1;
1082}
1083
5a2aa426 1084char lastLoadedGameName [2048];
989672f4 1085int LoadGameLastError = 0;
d97315ac 1086int UNIFLoad(const char *name, int fp);
1087int iNESLoad(const char *name, int fp);
1088int FDSLoad(const char *name, int fp);
1089int NSFLoad(int fp);
5a2aa426 1090
c62d2810 1091FCEUGI *FCEUI_LoadGame(char *name)
1092{
5a2aa426 1093 char name2[512];
1094 int have_movie = 0;
c62d2810 1095 int fp;
1096
b2b95d2e 1097 //Exit=1;
989672f4 1098 LoadGameLastError = 0;
c62d2810 1099 ResetGameLoaded();
1100
5a2aa426 1101 strncpy(name2, name, sizeof(name2));
1102 name2[sizeof(name2)-1] = 0;
1103
1104 fp=FCEU_fopen(name2,"rb");
c62d2810 1105 if(!fp)
1106 {
1107 FCEU_PrintError("Error opening \"%s\"!",name);
989672f4 1108 LoadGameLastError = 1;
c62d2810 1109 return 0;
1110 }
1111
5a2aa426 1112 {
1113 char *p = name2 + strlen(name2) - 4;
1114 if (strcmp(p, ".fcm") == 0)
1115 {
1116 // movie detected
1117 printf("movie detected\n");
1118 FCEU_fclose(fp);
1119 *p = 0;
1120 fp=FCEU_fopen(name2,"rb");
b2b95d2e 1121 if (!fp && p - name2 > 2) p[-2] = 0;
1122 fp=FCEU_fopen(name2,"rb");
5a2aa426 1123 if (!fp) {
1124 printf("no ROM for movie\n");
989672f4 1125 LoadGameLastError = 2;
5a2aa426 1126 return 0;
1127 }
1128 have_movie = 1;
1129 }
1130 }
1131
5a2aa426 1132 GetFileBase(name2);
1133 if(iNESLoad(name2,fp))
c62d2810 1134 goto endlseq;
1135 if(NSFLoad(fp))
1136 goto endlseq;
5a2aa426 1137 if(FDSLoad(name2,fp))
c62d2810 1138 goto endlseq;
5a2aa426 1139 if(UNIFLoad(name2,fp))
c62d2810 1140 goto endlseq;
1141
1142 FCEU_PrintError("An error occurred while loading the file.");
1143 FCEU_fclose(fp);
989672f4 1144 // format handlers may set LoadGameLastError themselves.
1145 if (LoadGameLastError == 0) LoadGameLastError = 3;
c62d2810 1146 return 0;
1147
1148 endlseq:
1149 FCEU_fclose(fp);
15300263 1150 GameLoaded=1;
c62d2810 1151
1152 FCEU_ResetVidSys();
1153 if(FCEUGameInfo.type!=GIT_NSF)
1154 if(FSettings.GameGenie)
1155 OpenGenie();
1156
1157 PowerNES();
1158 #ifdef NETWORK
1159 if(FSettings.NetworkPlay) InitNetplay();
1160 #endif
1161 SaveStateRefresh();
1162 if(FCEUGameInfo.type!=GIT_NSF)
1163 {
92764e62 1164 FCEU_LoadGamePalette();
1165 FCEU_LoadGameCheats(0);
c62d2810 1166 }
15300263 1167
c62d2810 1168 FCEU_ResetPalette();
1169 Exit=0;
5a2aa426 1170
1171 if (have_movie)
1172 FCEUI_LoadMovie(name, 1);
989672f4 1173
1174 strcpy(lastLoadedGameName, name2);
1175
c62d2810 1176 return(&FCEUGameInfo);
1177}
1178
1179
1180void FCEU_ResetVidSys(void)
1181{
1182 int w;
1183
1184 if(FCEUGameInfo.vidsys==GIV_NTSC)
1185 w=0;
1186 else if(FCEUGameInfo.vidsys==GIV_PAL)
1187 w=1;
1188 else
1189 w=FSettings.PAL;
1190
1191 if(w)
1192 {
1193 PAL=1;
c62d2810 1194 FSettings.FirstSLine=FSettings.UsrFirstSLine[1];
1195 FSettings.LastSLine=FSettings.UsrLastSLine[1];
1196 }
1197 else
1198 {
1199 PAL=0;
c62d2810 1200 FSettings.FirstSLine=FSettings.UsrFirstSLine[0];
1201 FSettings.LastSLine=FSettings.UsrLastSLine[0];
1202 }
0b65fdb3 1203 printf("ResetVidSys: PAL = %i\n", PAL);
c62d2810 1204 SetSoundVariables();
1205}
1206
1207int FCEUI_Initialize(void)
1208{
1209 if(!InitVirtualVideo())
1210 return 0;
1211 memset(&FSettings,0,sizeof(FSettings));
1212 FSettings.UsrFirstSLine[0]=8;
1213 FSettings.UsrFirstSLine[1]=0;
1214 FSettings.UsrLastSLine[0]=FSettings.UsrLastSLine[1]=239;
92764e62 1215 FSettings.SoundVolume=100;
c62d2810 1216 return 1;
1217}
1218
ea80a45b 1219void MMC5_hb(int); /* Ugh ugh ugh. */
e328100e 1220static void DoLine(void)
c62d2810 1221{
e328100e 1222 uint8 *target=XBuf+scanline*320+32;
1223
1224 LineUpdate(target);
c62d2810 1225
ea80a45b 1226 if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
1227
e328100e 1228 X6502_Run(256);
1229
f12b1f31 1230 // check: Battletoads & Double Dragon, Addams Family
1231 // sky glitches in SMB1 if done wrong
e328100e 1232 FakedLineUpdate();
1233
1234#ifdef FRAMESKIP
1235 if(!FSkip)
1236#endif
1237 if(SpriteON && spork)
1238 CopySprites(target);
1239
1240#ifdef FRAMESKIP
1241 if(!FSkip)
1242#endif
1243 LineUpdateEnd(target);
1244 sphitx=0x100;
1245
1246 if(ScreenON || SpriteON)
1247 FetchSpriteData();
1248
1249 // DoHBlank();
1250 if(GameHBIRQHook && (ScreenON || SpriteON) && ((PPU[0]&0x38)!=0x18))
15300263 1251 {
e328100e 1252 X6502_Run(6);
1253 Fixit2();
1254 X6502_Run(4);
1255 GameHBIRQHook();
1256 X6502_Run(85-10-16);
c62d2810 1257 }
1258 else
1259 {
e328100e 1260 X6502_Run(6); // Tried 65, caused problems with Slalom(maybe others)
1261 Fixit2();
1262 X6502_Run(85-6-16);
c62d2810 1263 }
e328100e 1264
1265 if(SpriteON)
1266 RefreshSprites();
1267 if(GameHBIRQHook2 && (ScreenON || SpriteON))
1268 GameHBIRQHook2();
1269 scanline++;
1270 if (scanline<240)
1271 ResetRL(XBuf+scanline*320+32);
1272 X6502_Run(16);
c62d2810 1273}
c62d2810 1274
e328100e 1275
c62d2810 1276void EmLoop(void)
1277{
1278 for(;;)
1279 {
ea80a45b 1280 int x;
92e249b1 1281 uint32 scanlines_per_frame = PAL ? 312 : 262;
4fdfab07 1282 UpdateInput();
92764e62 1283 FCEU_ApplyPeriodicCheats();
4fdfab07 1284
1285 // FCEUPPU_Loop:
1286 if(ppudead) /* Needed for Knight Rider, possibly others. */
1287 {
6587f346 1288 //memset(XBuf, 0, 320*240);
4fdfab07 1289 X6502_Run(scanlines_per_frame*(256+85));
1290 ppudead--;
1291 goto update;
1292 }
ea80a45b 1293
c62d2810 1294 X6502_Run(256+85);
1295
1296 PPU[2]|=0x80;
1297 PPU[3]=PPUSPL=0; /* Not sure if this is correct. According
1298 to Matt Conte and my own tests, it is. Timing is probably
1299 off, though. NOTE: Not having this here
1300 breaks a Super Donkey Kong game. */
1301
1302 X6502_Run(12); /* I need to figure out the true nature and length
15300263 1303 of this delay.
c62d2810 1304 */
1305 if(FCEUGameInfo.type==GIT_NSF)
ea80a45b 1306 DoNSFFrame();
c62d2810 1307 else if(VBlankON)
1308 TriggerNMI();
1309
655f8df0 1310 // Note: this is needed for asm core
1311 // Warning: using 'scanline' var here breaks Castlevania III
1312 {
1313 int lines;
1314 X6502_Run(256+85-12);
1315 for (lines=scanlines_per_frame-242-1;lines;lines--)
1316 X6502_Run(256+85);
1317 }
1318 // X6502_Run((scanlines_per_frame-242)*(256+85)-12);
c62d2810 1319 PPU_status&=0x1f;
c62d2810 1320 X6502_Run(256);
ea80a45b 1321
c62d2810 1322 {
c62d2810 1323 if(ScreenON || SpriteON)
d97315ac 1324 {
c62d2810 1325 if(GameHBIRQHook)
1326 GameHBIRQHook();
ea80a45b 1327 if(PPU_hook)
1328 for(x=0;x<42;x++) {PPU_hook(0x2000); PPU_hook(0);} // ugh
d97315ac 1329 if(GameHBIRQHook2)
1330 GameHBIRQHook2();
1331 }
c62d2810 1332
4fdfab07 1333 X6502_Run(85-16);
c62d2810 1334
4fdfab07 1335 if(ScreenON || SpriteON)
1336 {
1337 RefreshAddr=TempAddr;
1338 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
1339 }
e328100e 1340 spork=0;
1341 ResetRL(XBuf+32);
4fdfab07 1342
1343 X6502_Run(16-kook);
1344 kook ^= 1;
c62d2810 1345 }
4fdfab07 1346
c62d2810 1347 if(FCEUGameInfo.type==GIT_NSF)
937bf65b 1348 {
6587f346 1349 // run scanlines for asm core to fuction
13624c8f 1350 for(scanline=0;scanline<240;scanline++)
1351 X6502_Run(256+85);
937bf65b 1352 }
c62d2810 1353 else
1354 {
1355 int x,max,maxref;
1356
1357 deemp=PPU[1]>>5;
4a1bf31b 1358 SetRefreshLine();
4fdfab07 1359 for(scanline=0;scanline<240;) // scanline is incremented in DoLine. Evil. :/
c62d2810 1360 {
1361 deempcnt[deemp]++;
e328100e 1362 DoLine();
c62d2810 1363 }
ea80a45b 1364 if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
c62d2810 1365 for(x=1,max=0,maxref=0;x<7;x++)
1366 {
1367 if(deempcnt[x]>max)
1368 {
1369 max=deempcnt[x];
1370 maxref=x;
1371 }
1372 deempcnt[x]=0;
1373 }
c62d2810 1374 SetNESDeemph(maxref,0);
1375 }
1376
4fdfab07 1377update:
c62d2810 1378 {
1379 int ssize;
1380
1381 ssize=FlushEmulateSound();
1382
4fdfab07 1383 timestampbase += timestamp;
1384 timestamp = 0;
1385
c62d2810 1386 #ifdef FRAMESKIP
1387 if(FSkip)
1388 {
1389 FCEU_PutImageDummy();
1390 FSkip--;
5232c20c 1391 FCEUD_Update(0,WaveFinalMono,ssize);
c62d2810 1392 }
1393 else
1394 #endif
1395 {
1396 FCEU_PutImage();
5232c20c 1397 FCEUD_Update(XBuf+8,WaveFinalMono,ssize);
c62d2810 1398 }
c62d2810 1399 }
1400
1401 if(Exit)
1402 {
b2b95d2e 1403 //CloseGame();
c62d2810 1404 break;
1405 }
1406
4fdfab07 1407 } // for
c62d2810 1408}
1409
1410#ifdef FPS
1411#include <sys/time.h>
1412uint64 frcount;
1413#endif
1414void FCEUI_Emulate(void)
1415{
1416 #ifdef FPS
1417 uint64 starttime,end;
1418 struct timeval tv;
1419 frcount=0;
1420 gettimeofday(&tv,0);
1421 starttime=((uint64)tv.tv_sec*1000000)+tv.tv_usec;
1422 #endif
1423 EmLoop();
1424
1425 #ifdef FPS
1426 // Probably won't work well on Windows port; for
1427 // debugging/speed testing.
1428 {
1429 uint64 w;
1430 int i,frac;
1431 gettimeofday(&tv,0);
1432 end=((uint64)tv.tv_sec*1000000)+tv.tv_usec;
1433 w=frcount*10000000000LL/(end-starttime);
1434 i=w/10000;
1435 frac=w-i*10000;
1436 printf("Average FPS: %d.%04d\n",i,frac);
1437 }
1438 #endif
1439
1440}
1441
1442void FCEUI_CloseGame(void)
1443{
1444 Exit=1;
1445}
1446
1447static void ResetPPU(void)
1448{
1449 VRAMBuffer=PPU[0]=PPU[1]=PPU[2]=PPU[3]=0;
1450 PPUSPL=0;
1451 PPUGenLatch=0;
1452 RefreshAddr=TempAddr=0;
1453 vtoggle = 0;
4fdfab07 1454 ppudead = 2;
1455 kook = 0;
c62d2810 1456}
1457
1458static void PowerPPU(void)
1459{
1460 memset(NTARAM,0x00,0x800);
1461 memset(PALRAM,0x00,0x20);
1462 memset(SPRAM,0x00,0x100);
1463 ResetPPU();
1464}
1465
1466void ResetNES(void)
1467{
92764e62 1468 if(!GameLoaded) return;
c62d2810 1469 GameInterface(GI_RESETM2);
1470 ResetSound();
1471 ResetPPU();
1472 X6502_Reset();
1473}
1474
b8da43fb 1475static void FCEU_MemoryRand(uint8 *ptr, uint32 size)
1476{
1477 int x=0;
1478 while(size)
1479 {
1480 *ptr=(x&4)?0xFF:0x00;
1481 x++;
1482 size--;
1483 ptr++;
1484 }
1485}
1486
15300263 1487void PowerNES(void)
c62d2810 1488{
1489 if(!GameLoaded) return;
1490
1491 FCEU_CheatResetRAM();
1492 FCEU_CheatAddRAM(2,0,RAM);
1493
1494 GeniePower();
1495
b8da43fb 1496#ifndef DEBUG_ASM_6502
1497 FCEU_MemoryRand(RAM,0x800);
1498#else
c62d2810 1499 memset(RAM,0x00,0x800);
b8da43fb 1500#endif
c62d2810 1501 ResetMapping();
1502 GameInterface(GI_POWER);
1503 PowerSound();
1504 PowerPPU();
1505 timestampbase=0;
b8da43fb 1506#ifdef ASM_6502
1507 if (geniestage)
1508 GenieSetPages(0);
1509#endif
c62d2810 1510 X6502_Power();
1511}
1512
890e37ba 1513
1514/* savestate stuff */
1515uint16 TempAddrT,RefreshAddrT;
1516
1517SFORMAT FCEUPPU_STATEINFO[]={
1518 { NTARAM, 0x800, "NTAR"},
1519 { PALRAM, 0x20, "PRAM"},
1520 { SPRAM, 0x100, "SPRA"},
1521 { PPU, 0x4, "PPUR"},
1522 { &XOffset, 1, "XOFF"},
1523 { &vtoggle, 1, "VTOG"},
1524 { &RefreshAddrT, 2|RLSB, "RADD"},
1525 { &TempAddrT, 2|RLSB, "TADD"},
1526 { &VRAMBuffer, 1, "VBUF"},
1527 { &PPUGenLatch, 1, "PGEN"},
1528 // from 0.98.15
1529 { &kook, 1, "KOOK"},
1530 { &ppudead, 1, "DEAD"},
1531 { &PPUSPL, 1, "PSPL"},
1532 { 0 }
1533 };
1534
1535
ARM optimized FCE Ultra port