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bugfixes, r171 release
[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"
6244011f 29#include "fceu098.h"
c62d2810 30#include "sound.h"
77887306 31#include "svga.h"
c62d2810 32#include "netplay.h"
33#include "general.h"
34#include "endian.h"
35#include "version.h"
36#include "memory.h"
37
38#include "cart.h"
39#include "nsf.h"
40#include "fds.h"
41#include "ines.h"
42#include "unif.h"
15d2d258 43#include "vsuni.h"
c62d2810 44#include "cheat.h"
45
46#include "state.h"
47#include "video.h"
48#include "input.h"
49#include "file.h"
50#include "crc32.h"
5232c20c 51#include "ppu.h"
642070a9 52#include "ppu098.h"
c62d2810 53
92764e62 54#include "palette.h"
5a2aa426 55#include "movie.h"
56
4fdfab07 57#include "dprintf.h"
58
6587f346 59#ifdef GP2X
60#include "drivers/gp2x/asmutils.h"
61#endif
62
c62d2810 63#define Pal (PALRAM)
64
5232c20c 65
4a1bf31b 66static void (*RefreshLine)(uint8 *P, uint32 vofs) = NULL;
c62d2810 67static void PRefreshLine(void);
5232c20c 68
c62d2810 69static void ResetPPU(void);
70static void PowerPPU(void);
71
72uint64 timestampbase=0;
73
6244011f 74int ppudead=1;
75int kook=0;
4fdfab07 76
c62d2810 77int MMC5Hack;
78uint32 MMC5HackVROMMask;
79uint8 *MMC5HackExNTARAMPtr;
80uint8 *MMC5HackVROMPTR;
15300263 81uint8 MMC5HackCHRMode=0;
c62d2810 82uint8 MMC5HackSPMode;
83uint8 MMC5HackSPScroll;
84uint8 MMC5HackSPPage;
85
86uint8 *MMC5SPRVPage[8];
87uint8 *MMC5BGVPage[8];
88
89
90uint8 VRAMBuffer,PPUGenLatch;
91
92uint8 *vnapage[4];
93uint8 PPUNTARAM;
94uint8 PPUCHRRAM;
95
96/* Color deemphasis emulation. Joy... */
97static uint8 deemp=0;
98static int deempcnt[8];
99
c62d2810 100FCEUGI FCEUGameInfo;
c4980f9e 101void (*GameInterface)(int h, void *param);
c62d2810 102
103void FP_FASTAPASS(1) (*PPU_hook)(uint32 A);
104
105void (*GameStateRestore)(int version);
d97315ac 106void (*GameHBIRQHook)(void), (*GameHBIRQHook2)(void);
c62d2810 107
108readfunc ARead[0x10000];
109writefunc BWrite[0x10000];
110static readfunc *AReadG;
111static writefunc *BWriteG;
112static int RWWrap=0;
113
92e249b1 114#ifdef ASM_6502
cd9a6b51 115#ifndef DEBUG_ASM_6502
92e249b1 116static void asmcpu_update(int32 cycles)
117{
92e249b1 118 // some code from x6502.c
119 fhcnt-=cycles;
120 if(fhcnt<=0)
121 {
122 FrameSoundUpdate();
123 fhcnt+=fhinc;
124 }
125
126 if(PCMIRQCount>0)
127 {
128 PCMIRQCount-=cycles;
129 if(PCMIRQCount<=0)
130 {
131 vdis=1;
132 if((PSG[0x10]&0x80) && !(PSG[0x10]&0x40))
133 {
134 extern uint8 SIRQStat;
135 SIRQStat|=0x80;
136 X6502_IRQBegin(FCEU_IQDPCM);
137 }
138 }
139 }
140}
cd9a6b51 141#endif
92e249b1 142
143void asmcpu_unpack(void)
144{
145 nes_registers[0] = X.A << 24;
146 nes_registers[1] = X.X;
147 nes_registers[2] = X.Y;
148 pc_base = 0;
149 nes_registers[3] = X.PC;
c0bf6f9f 150 X6502_Rebase_a();
92e249b1 151 nes_registers[4] = X.S << 24;
152 nes_registers[4]|= X.IRQlow << 8;
0bb3fe12 153 if (MapIRQHook)
154 nes_registers[4] |= 1<<16; // MapIRQHook set bit
8fa5eb33 155 nes_registers[7] = (uint32)X.count << 16;
92e249b1 156
157 // NVUB DIZC
158 nes_registers[4]|= X.P & 0x5d;
159 nes_registers[5] = X.P << 24; // N
160 if (!(X.P&0x02)) nes_registers[5] |= 1; // Z
161}
162
163void asmcpu_pack(void)
164{
165 X.A = nes_registers[0] >> 24;
166 X.X = nes_registers[1];
167 X.Y = nes_registers[2];
168 X.PC= nes_registers[3] - pc_base;
169 X.S = nes_registers[4] >> 24;
170 X.IRQlow = nes_registers[4] >> 8;
8fa5eb33 171 X.count = (int32) nes_registers[7] >> 16;
92e249b1 172
173 // NVUB DIZC
174 X.P = nes_registers[4] & 0x5d;
175 if ( nes_registers[5]&0x80000000) X.P |= 0x80; // N
176 if (!(nes_registers[5]&0x000000ff)) X.P |= 0x02; // Z
177}
178#endif
179
c62d2810 180DECLFW(BNull)
181{
182
183}
184
185DECLFR(ANull)
186{
187 return(X.DB);
188}
189
190int AllocGenieRW(void)
191{
192 if(!(AReadG=FCEU_malloc(0x8000*sizeof(readfunc))))
193 return 0;
194 if(!(BWriteG=FCEU_malloc(0x8000*sizeof(writefunc))))
195 return 0;
196 RWWrap=1;
197 return 1;
198}
199
200void FlushGenieRW(void)
201{
202 int32 x;
203
204 if(RWWrap)
205 {
206 for(x=0;x<0x8000;x++)
207 {
208 ARead[x+0x8000]=AReadG[x];
209 BWrite[x+0x8000]=BWriteG[x];
210 }
b8da43fb 211#ifdef ASM_6502
212 GenieSetPages(1);
213#endif
c62d2810 214 free(AReadG);
215 free(BWriteG);
216 AReadG=0;
217 BWriteG=0;
218 RWWrap=0;
219 }
220}
221
222readfunc FASTAPASS(1) GetReadHandler(int32 a)
223{
224 if(a>=0x8000 && RWWrap)
225 return AReadG[a-0x8000];
226 else
227 return ARead[a];
228}
229
230void FASTAPASS(3) SetReadHandler(int32 start, int32 end, readfunc func)
231{
232 int32 x;
233
234 if(!func)
235 func=ANull;
236
237 if(RWWrap)
238 for(x=end;x>=start;x--)
239 {
240 if(x>=0x8000)
241 AReadG[x-0x8000]=func;
242 else
243 ARead[x]=func;
244 }
245 else
246
247 for(x=end;x>=start;x--)
248 ARead[x]=func;
249}
250
251writefunc FASTAPASS(1) GetWriteHandler(int32 a)
252{
253 if(RWWrap && a>=0x8000)
254 return BWriteG[a-0x8000];
255 else
256 return BWrite[a];
257}
258
259void FASTAPASS(3) SetWriteHandler(int32 start, int32 end, writefunc func)
260{
261 int32 x;
262
263 if(!func)
264 func=BNull;
265
266 if(RWWrap)
267 for(x=end;x>=start;x--)
268 {
269 if(x>=0x8000)
270 BWriteG[x-0x8000]=func;
271 else
272 BWrite[x]=func;
273 }
274 else
275 for(x=end;x>=start;x--)
276 BWrite[x]=func;
277}
278
279uint8 vtoggle=0;
280uint8 XOffset=0;
281
282uint32 TempAddr,RefreshAddr;
283
c62d2810 284
285/* scanline is equal to the current visible scanline we're on. */
286
287int scanline;
c62d2810 288
9115e7d2 289uint8 GameMemBlock[131072] __attribute__ ((aligned (4)));
290uint8 NTARAM[0x800] __attribute__ ((aligned (4)));
291uint8 PALRAM[0x20] __attribute__ ((aligned (4)));
92e249b1 292#if !defined(ASM_6502) || defined(DEBUG_ASM_6502)
9115e7d2 293uint8 RAM[0x800] __attribute__ ((aligned (4)));
af32b6c2 294#endif
9115e7d2 295
c62d2810 296uint8 PPU[4];
297uint8 PPUSPL;
298
c62d2810 299uint8 PAL=0;
300
5232c20c 301
c62d2810 302#define MMC5BGVRAMADR(V) &MMC5BGVPage[(V)>>10][(V)]
303#define VRAMADR(V) &VPage[(V)>>10][(V)]
15300263 304
4fdfab07 305static int linestartts;
306static int tofix=0;
307
e328100e 308static uint8 *Plinef;
309
310extern uint8 sprlinebuf[256+8];
311extern int32 sphitx;
312extern uint8 sphitdata;
313
314extern int spork; /* spork the world. Any sprites on this line?
315 Then this will be set to 1. Needed for zapper
316 emulation and *gasp* sprite emulation.
317 */
318
319static void ResetRL(uint8 *target)
4fdfab07 320{
e328100e 321 if(InputScanlineHook)
322 InputScanlineHook(0,0,0,0);
323 Plinef=target;
4fdfab07 324 linestartts=timestamp*48+X6502_GetCycleCount();
325 tofix=1;
326}
327
328static INLINE void Fixit1(void);
329
e328100e 330/* faking FCEUPPU_LineUpdate() from later versions of the emu */
331static void FakedLineUpdate(void)
4fdfab07 332{
333 #define TOFIXNUM (272-0x4)
334 int lastpixel;
335
e328100e 336 if (scanline >= 240) return;
337
338 if (tofix || sphitx != 0x100)
4fdfab07 339 {
340 lastpixel = (timestamp*48-linestartts)>>4;
341 if (PAL) lastpixel += lastpixel>>4;
4fdfab07 342 //printf("lastpixel: %i\n", lastpixel);
e328100e 343 }
344
345 if (tofix && lastpixel>=TOFIXNUM)
346 {
347 Fixit1();
348 tofix=0;
349 }
4fdfab07 350
e328100e 351 // CheckSpriteHit()
352 if(sphitx!=0x100)
353 {
354 int l=lastpixel-16;
355 int x;
356
357 for(x=sphitx;x<(sphitx+8) && x<l;x++)
4fdfab07 358 {
e328100e 359 if((sphitdata&(0x80>>(x-sphitx))) && !(Plinef[x]&64))
360 {
361 PPU_status|=0x40;
362 sphitx=0x100;
363 break;
364 }
4fdfab07 365 }
366 }
367}
368
369
c62d2810 370static DECLFW(BRAML)
15300263 371{
c62d2810 372 RAM[A]=V;
373}
374
375static DECLFW(BRAMH)
376{
377 RAM[A&0x7FF]=V;
378}
379
380static DECLFR(ARAML)
381{
382 return RAM[A];
383}
384
385static DECLFR(ARAMH)
386{
387 return RAM[A&0x7FF];
388}
389
15300263 390
c62d2810 391static DECLFR(A2002)
392{
4fdfab07 393 /* merged */
c62d2810 394 uint8 ret;
4fdfab07 395
e328100e 396 FakedLineUpdate();
c62d2810 397 ret = PPU_status;
4fdfab07 398 ret|=PPUGenLatch&0x1F;
c62d2810 399 vtoggle=0;
400 PPU_status&=0x7F;
4fdfab07 401 PPUGenLatch=ret;
ea80a45b 402 //dprintf("r [2002] %02x",ret);
4fdfab07 403 return ret;
c62d2810 404}
405
406static DECLFR(A200x)
407{
4fdfab07 408 /* merged */
e328100e 409 FakedLineUpdate();
c62d2810 410 return PPUGenLatch;
411}
412
413static DECLFR(A2007)
414{
4fdfab07 415 /* merged */
c62d2810 416 uint8 ret;
417 uint32 tmp=RefreshAddr&0x3FFF;
418
e328100e 419 FakedLineUpdate();
4fdfab07 420
421 ret=VRAMBuffer;
422
c62d2810 423 if(PPU_hook) PPU_hook(tmp);
4fdfab07 424 PPUGenLatch=VRAMBuffer;
15300263 425 if(tmp<0x2000)
c62d2810 426 {
427 VRAMBuffer=VPage[tmp>>10][tmp];
428 }
15300263 429 else
c62d2810 430 {
431 VRAMBuffer=vnapage[(tmp>>10)&0x3][tmp&0x3FF];
432 }
433
434 if (INC32) RefreshAddr+=32;
435 else RefreshAddr++;
436 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
4fdfab07 437 dprintf("r [2007] %02x",ret);
c62d2810 438 return ret;
439}
440
441static DECLFW(B2000)
442{
4fdfab07 443 /* NMI2? */
e328100e 444 FakedLineUpdate();
c62d2810 445 PPUGenLatch=V;
446 PPU[0]=V;
447 TempAddr&=0xF3FF;
448 TempAddr|=(V&3)<<10;
449}
450
451static DECLFW(B2001)
452{
4fdfab07 453 /* merged */
e328100e 454 FakedLineUpdate();
c62d2810 455 PPUGenLatch=V;
456 PPU[1]=V;
457 if(V&0xE0)
458 deemp=V>>5;
459 //printf("$%04x:$%02x, %d\n",X.PC,V,scanline);
460}
461
462static DECLFW(B2002)
463{
4fdfab07 464 /* merged */
c62d2810 465 PPUGenLatch=V;
466}
467
468static DECLFW(B2003)
469{
4fdfab07 470 /* merged */
c62d2810 471 PPUGenLatch=V;
472 PPU[3]=V;
473 PPUSPL=V&0x7;
474}
475
476static DECLFW(B2004)
477{
4fdfab07 478 /* merged */
c62d2810 479 PPUGenLatch=V;
4fdfab07 480 if(PPUSPL>=8)
c62d2810 481 {
482 if(PPU[3]>=8)
483 SPRAM[PPU[3]]=V;
484 }
485 else
486 {
487 //printf("$%02x:$%02x\n",PPUSPL,V);
488 SPRAM[PPUSPL]=V;
c62d2810 489 }
490 PPU[3]++;
4fdfab07 491 PPUSPL++;
5232c20c 492
c62d2810 493}
494
495static DECLFW(B2005)
496{
4fdfab07 497 /* merged */
c62d2810 498 uint32 tmp=TempAddr;
e328100e 499 FakedLineUpdate();
c62d2810 500 PPUGenLatch=V;
501 if (!vtoggle)
502 {
503 tmp&=0xFFE0;
504 tmp|=V>>3;
505 XOffset=V&7;
506 }
507 else
508 {
509 tmp&=0x8C1F;
510 tmp|=((V&~0x7)<<2);
511 tmp|=(V&7)<<12;
512 }
513
514 TempAddr=tmp;
515 vtoggle^=1;
516}
517
518static DECLFW(B2006)
519{
4fdfab07 520 /* merged */
e328100e 521 FakedLineUpdate();
4fdfab07 522
c62d2810 523 PPUGenLatch=V;
524 if(!vtoggle)
525 {
526 TempAddr&=0x00FF;
527 TempAddr|=(V&0x3f)<<8;
528 }
529 else
530 {
531 TempAddr&=0xFF00;
532 TempAddr|=V;
c62d2810 533
4fdfab07 534 RefreshAddr=TempAddr;
c62d2810 535 if(PPU_hook)
536 PPU_hook(RefreshAddr);
537 }
538 vtoggle^=1;
539}
540
541static DECLFW(B2007)
15300263 542{
4fdfab07 543 /* merged */
c62d2810 544 uint32 tmp=RefreshAddr&0x3FFF;
c62d2810 545 PPUGenLatch=V;
546 if(tmp>=0x3F00)
547 {
4fdfab07 548 // hmmm....
549 if(!(tmp&0xf))
550 PALRAM[0x00]=PALRAM[0x04]=PALRAM[0x08]=PALRAM[0x0C]=V&0x3f;
551 else if(tmp&3) PALRAM[(tmp&0x1f)]=V&0x3f;
c62d2810 552 }
553 else if(tmp<0x2000)
554 {
555 if(PPUCHRRAM&(1<<(tmp>>10)))
556 VPage[tmp>>10][tmp]=V;
557 }
558 else
15300263 559 {
c62d2810 560 if(PPUNTARAM&(1<<((tmp&0xF00)>>10)))
561 vnapage[((tmp&0xF00)>>10)][tmp&0x3FF]=V;
562 }
563 if (INC32) RefreshAddr+=32;
564 else RefreshAddr++;
565 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
566}
567
568static DECLFW(B4014)
15300263 569{
c62d2810 570 uint32 t=V<<8;
571 int x;
4fdfab07 572
c62d2810 573 for(x=0;x<256;x++)
574 B2004(0x2004,X.DB=ARead[t+x](t+x));
575 X6502_AddCycles(512);
576}
577
5232c20c 578void BGRender(uint8 *target)
c62d2810 579{
4a1bf31b 580 uint32 tem, vofs;
581 vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
582
583 Pal[0]|=64;
584 Pal[4]|=64;
585 Pal[8]|=64;
586 Pal[0xC]|=64;
587 RefreshLine(target-XOffset, vofs);
588 Pal[0]&=63;
589 Pal[4]&=63;
590 Pal[8]&=63;
591 Pal[0xC]&=63;
592
c62d2810 593 if(!(PPU[1]&2))
594 {
9115e7d2 595 tem=Pal[0]|0x40;
596 tem|=tem<<8;
597 tem|=tem<<16;
c62d2810 598 *(uint32 *)target=*(uint32 *)(target+4)=tem;
599 }
600}
601
602#ifdef FRAMESKIP
5232c20c 603int FSkip=0;
c62d2810 604void FCEUI_FrameSkip(int x)
605{
606 FSkip=x;
607}
608#endif
609
610/* This is called at the beginning of each visible scanline */
e328100e 611static void LineUpdate(uint8 *target)
c62d2810 612{
613 uint32 tem;
c0623dcf 614 int y;
c62d2810 615
078eb4c0 616 /* PRefreshLine() will not get called on skipped frames. This
617 * could cause a problem, but the solution would be rather complex,
618 * due to the current sprite 0 hit code.
619 */
c0623dcf 620 if(FSkip)
621 {
622 y=(int)SPRAM[0] + 1;
623 if(scanline==y && SpriteON) PPU_status|=0x40; // hack
624 return;
625 }
078eb4c0 626
627 if(scanline < FSettings.FirstSLine || scanline > FSettings.LastSLine)
e328100e 628 {
629 if(PPU_hook)
630 PRefreshLine();
c0623dcf 631 y=(int)SPRAM[0] + 1;
632 if(scanline==y && SpriteON) PPU_status|=0x40;
e328100e 633 }
634 else
635 {
636 if(ScreenON)
c62d2810 637 {
21afaa36 638 BGRender(target);
c62d2810 639 }
e328100e 640 else
c62d2810 641 {
e328100e 642 tem=Pal[0]|0x40;
643 tem|=tem << 8;
644 tem|=tem << 16;
645 FCEU_dwmemset(target,tem,256);
c62d2810 646 }
15300263 647 }
e328100e 648
c62d2810 649 if(InputScanlineHook)
e328100e 650 InputScanlineHook(target,spork?sprlinebuf:0,linestartts,256);
651}
652
653
654static void LineUpdateEnd(uint8 *target)
655{
656#ifdef GP2X
657 if(ScreenON || SpriteON) // Yes, very el-cheapo.
658 {
659 if(PPU[1]&0x01)
660 block_and(target, 256, 0x30);
661 }
662 if((PPU[1]>>5)==0x7)
663 block_or(target, 256, 0xc0);
664 else if(PPU[1]&0xE0)
665 block_or(target, 256, 0x40);
666 else
667 block_andor(target, 256, 0x3f, 0x80);
668#else
669 int x;
670
671 if(ScreenON || SpriteON) // Yes, very el-cheapo.
672 {
673 if(PPU[1]&0x01)
674 {
675 for(x=63;x>=0;x--)
676 *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])&0x30303030;
677 }
678 }
679 if((PPU[1]>>5)==0x7)
680 {
681 for(x=63;x>=0;x--)
682 *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0xc0c0c0c0;
683 }
684 else if(PPU[1]&0xE0)
685 for(x=63;x>=0;x--)
686 *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])|0x40404040;
687 else
688 for(x=63;x>=0;x--)
689 *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0x80808080;
690#endif
691
692 // black borders
693 ((uint32 *)target)[-2]=((uint32 *)target)[-1]=0;
694 ((uint32 *)target)[64]=((uint32 *)target)[65]=0;
c62d2810 695}
696
697#define PAL(c) ((c)+cc)
698
699
700static void PRefreshLine(void)
701{
078eb4c0 702 uint32 vofs;
703 int X1;
704 vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
705 void (*PPU_hook_)(uint32 A) = PPU_hook;
c62d2810 706
c62d2810 707
078eb4c0 708 for(X1=33;X1;X1--)
709 {
710 uint32 zz2;
711 uint32 vadr;
712
713 zz2=(RefreshAddr>>10)&3;
714 PPU_hook_(0x2000|(RefreshAddr&0xFFF));
715
716 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
717
718 PPU_hook_(vadr);
c62d2810 719
c62d2810 720 if((RefreshAddr&0x1f)==0x1f)
721 RefreshAddr^=0x41F;
722 else
723 RefreshAddr++;
078eb4c0 724 }
c62d2810 725}
726
4a1bf31b 727/* This high-level graphics MMC5 emulation code was written
728 for MMC5 carts in "CL" mode. It's probably not totally
729 correct for carts in "SL" mode.
730 */
731static void RefreshLine_MMC5Hack1(uint8 *P, uint32 vofs)
c62d2810 732{
4a1bf31b 733 int8 tochange, X1;
c62d2810 734
735 tochange=MMC5HackSPMode&0x1F;
736
737 for(X1=33;X1;X1--,P+=8)
738 {
739 uint8 *C;
5232c20c 740 uint8 cc,zz,zz2;
c62d2810 741 uint32 vadr;
742
15300263 743 if((tochange<=0 && MMC5HackSPMode&0x40) ||
c62d2810 744 (tochange>0 && !(MMC5HackSPMode&0x40)))
745 {
746 uint8 xs,ys;
747
15300263 748 xs=33-X1;
c62d2810 749 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
750 if(ys>=0x1E) ys-=0x1E;
751 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
752
753 C = MMC5HackVROMPTR+vadr;
754 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
755
756 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
757 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
758 }
759 else
760 {
761 zz=RefreshAddr&0x1F;
762 zz2=(RefreshAddr>>10)&3;
763 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
764 C = MMC5BGVRAMADR(vadr);
765 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
766 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
767 }
768 #include "fceline.h"
769
770 if((RefreshAddr&0x1f)==0x1f)
771 RefreshAddr^=0x41F;
772 else
773 RefreshAddr++;
774 tochange--;
775 }
4a1bf31b 776}
777
778static void RefreshLine_MMC5Hack2(uint8 *P, uint32 vofs)
779{
780 int8 tochange, X1;
c62d2810 781
782 tochange=MMC5HackSPMode&0x1F;
783
784 for(X1=33;X1;X1--,P+=8)
785 {
786 uint8 *C;
5232c20c 787 uint8 cc;
788 uint8 zz2;
c62d2810 789 uint32 vadr;
790
791 if((tochange<=0 && MMC5HackSPMode&0x40) ||
792 (tochange>0 && !(MMC5HackSPMode&0x40)))
793 {
794 uint8 xs,ys;
795
15300263 796 xs=33-X1;
c62d2810 797 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
798 if(ys>=0x1E) ys-=0x1E;
799 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
800
801 C = MMC5HackVROMPTR+vadr;
802 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
803
804 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
805 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
806 }
807 else
808 {
809 C=MMC5HackVROMPTR;
810 zz2=(RefreshAddr>>10)&3;
811 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
812 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
813 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
814 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
815 cc = vadr;
816 }
817 #include "fceline.h"
818 if((RefreshAddr&0x1f)==0x1f)
819 RefreshAddr^=0x41F;
820 else
821 RefreshAddr++;
822 tochange--;
823 }
4a1bf31b 824}
825
826static void RefreshLine_MMC5Hack3(uint8 *P, uint32 vofs)
827{
828 int8 X1;
c62d2810 829
c62d2810 830 for(X1=33;X1;X1--,P+=8)
831 {
15300263 832 uint8 *C;
5232c20c 833 uint8 cc;
834 uint8 zz2;
15300263 835 uint32 vadr;
c62d2810 836
837 C=MMC5HackVROMPTR;
838 zz2=(RefreshAddr>>10)&3;
839 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
15300263 840 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
c62d2810 841 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
842 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
843 cc = vadr;
844
845 #include "fceline.h"
846 if((RefreshAddr&0x1f)==0x1f)
847 RefreshAddr^=0x41F;
848 else
849 RefreshAddr++;
850 }
4a1bf31b 851}
852
853static void RefreshLine_MMC5Hack4(uint8 *P, uint32 vofs)
854{
855 int8 X1;
856
c62d2810 857 for(X1=33;X1;X1--,P+=8)
858 {
859 uint8 *C;
5232c20c 860 uint8 cc,zz,zz2;
c62d2810 861 uint32 vadr;
862
863 zz=RefreshAddr&0x1F;
864 zz2=(RefreshAddr>>10)&3;
865 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
866 C = MMC5BGVRAMADR(vadr);
867 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
868 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
869
870 #include "fceline.h"
15300263 871
c62d2810 872 if((RefreshAddr&0x1f)==0x1f)
873 RefreshAddr^=0x41F;
874 else
875 RefreshAddr++;
15300263 876 }
4a1bf31b 877}
878
879static void RefreshLine_PPU_hook(uint8 *P, uint32 vofs)
880{
881 int8 X1;
078eb4c0 882 void (*PPU_hook_)(uint32 A) = PPU_hook;
883 uint32 rfraddr = RefreshAddr;
884 uint8 *page = vnapage[(rfraddr>>10)&3];
c62d2810 885
c62d2810 886 for(X1=33;X1;X1--,P+=8)
887 {
15300263 888 uint8 *C;
078eb4c0 889 uint8 cc,zz;
15300263 890 uint32 vadr;
c62d2810 891
078eb4c0 892 zz=rfraddr&0x1F;
893 PPU_hook_(0x2000|(rfraddr&0xFFF));
894 cc=page[0x3c0+(zz>>2)+((rfraddr&0x380)>>4)];
895 cc=((cc >> ((zz&2) + ((rfraddr&0x40)>>4))) &3) <<2;
896 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
c62d2810 897 C = VRAMADR(vadr);
898
899 #include "fceline.h"
900
078eb4c0 901 PPU_hook_(vadr);
c62d2810 902
078eb4c0 903 if((rfraddr&0x1f)==0x1f) {
904 rfraddr^=0x41F;
905 page = vnapage[(rfraddr>>10)&3];
906 } else
907 rfraddr++;
c62d2810 908 }
078eb4c0 909 RefreshAddr = rfraddr;
4a1bf31b 910}
911
9115e7d2 912static void RefreshLine_normal(uint8 *P, uint32 vofs) // vofs is 0x107 max
4a1bf31b 913{
914 int8 X1;
9115e7d2 915 uint32 rfraddr = RefreshAddr;
916 uint8 *page = vnapage[(rfraddr>>10)&3];
917 uint32 cc2=0;
4a1bf31b 918
9115e7d2 919 if ((rfraddr&0xc)!=0)
920 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
921
922 for (X1=33;X1;X1--,P+=8)
c62d2810 923 {
9115e7d2 924 uint8 cc,*C;
c62d2810 925 uint32 vadr;
926
9115e7d2 927 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
c62d2810 928 C = VRAMADR(vadr);
9115e7d2 929 if ((rfraddr&0xc)==0)
930 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
931 cc=((cc2 >> ((rfraddr&2) + ((rfraddr&0x40)>>4) + ((rfraddr&0xc)<<1))) & 3) << 2;
4a1bf31b 932
9115e7d2 933 #include "fceline.h"
15300263 934
9115e7d2 935 if((rfraddr&0x1f)==0x1f) {
936 rfraddr^=0x41F;
937 page = vnapage[(rfraddr>>10)&3];
938 } else
939 rfraddr++;
c62d2810 940 }
9115e7d2 941 RefreshAddr = rfraddr;
4a1bf31b 942}
c62d2810 943
4a1bf31b 944static void SetRefreshLine(void)
945{
946 if(MMC5Hack && geniestage!=1)
947 {
948 if(MMC5HackCHRMode==0 && (MMC5HackSPMode&0x80))
949 {
950 if (RefreshLine != RefreshLine_MMC5Hack1) printf("set refr RefreshLine_MMC5Hack1\n");
951 RefreshLine = RefreshLine_MMC5Hack1;
952 }
953 else if(MMC5HackCHRMode==1 && (MMC5HackSPMode&0x80))
954 {
955 if (RefreshLine != RefreshLine_MMC5Hack2) printf("set refr RefreshLine_MMC5Hack2\n");
956 RefreshLine = RefreshLine_MMC5Hack2;
957 }
958 else if(MMC5HackCHRMode==1)
959 {
960 if (RefreshLine != RefreshLine_MMC5Hack3) printf("set refr RefreshLine_MMC5Hack3\n");
961 RefreshLine = RefreshLine_MMC5Hack3;
962 }
963 else
964 {
965 if (RefreshLine != RefreshLine_MMC5Hack4) printf("set refr RefreshLine_MMC5Hack4\n");
966 RefreshLine = RefreshLine_MMC5Hack4;
967 }
968 } // End if(MMC5Hack)
969 else if(PPU_hook)
970 {
971 if (RefreshLine != RefreshLine_PPU_hook) printf("set refr RefreshLine_PPU_hook\n");
972 RefreshLine = RefreshLine_PPU_hook;
973 }
974 else
975 {
976 if (RefreshLine != RefreshLine_normal) printf("set refr RefreshLine_normal\n");
977 RefreshLine = RefreshLine_normal;
978 }
c62d2810 979}
980
4fdfab07 981static INLINE
937bf65b 982void Fixit2(void)
c62d2810 983{
984 if(ScreenON || SpriteON)
985 {
986 uint32 rad=RefreshAddr;
987 rad&=0xFBE0;
988 rad|=TempAddr&0x041f;
989 RefreshAddr=rad;
990 //PPU_hook(RefreshAddr,-1);
991 }
992}
993
4fdfab07 994static INLINE
937bf65b 995void Fixit1(void)
c62d2810 996{
997 if(ScreenON || SpriteON)
998 {
999 uint32 rad=RefreshAddr;
1000
1001 if((rad&0x7000)==0x7000)
1002 {
1003 rad^=0x7000;
1004 if((rad&0x3E0)==0x3A0)
1005 {
1006 rad^=0x3A0;
1007 rad^=0x800;
1008 }
1009 else
1010 {
1011 if((rad&0x3E0)==0x3e0)
1012 rad^=0x3e0;
1013 else rad+=0x20;
1014 }
1015 }
1016 else
1017 rad+=0x1000;
1018 RefreshAddr=rad;
1019 //PPU_hook(RefreshAddr,-1);
1020 }
1021}
1022
937bf65b 1023
5232c20c 1024// ============================//
1025// end of new code
1026// ===========================//
c62d2810 1027
1028void ResetMapping(void)
1029{
1030 int x;
1031
1032 SetReadHandler(0x0000,0xFFFF,ANull);
1033 SetWriteHandler(0x0000,0xFFFF,BNull);
1034
1035 SetReadHandler(0,0x7FF,ARAML);
1036 SetWriteHandler(0,0x7FF,BRAML);
1037
1038 SetReadHandler(0x800,0x1FFF,ARAMH); /* Part of a little */
1039 SetWriteHandler(0x800,0x1FFF,BRAMH); /* hack for a small speed boost. */
1040
1041 for(x=0x2000;x<0x4000;x+=8)
1042 {
1043 ARead[x]=A200x;
1044 BWrite[x]=B2000;
1045 ARead[x+1]=A200x;
1046 BWrite[x+1]=B2001;
1047 ARead[x+2]=A2002;
1048 BWrite[x+2]=B2002;
1049 ARead[x+3]=A200x;
1050 BWrite[x+3]=B2003;
1051 ARead[x+4]=A200x;
1052 BWrite[x+4]=B2004;
1053 ARead[x+5]=A200x;
1054 BWrite[x+5]=B2005;
1055 ARead[x+6]=A200x;
1056 BWrite[x+6]=B2006;
1057 ARead[x+7]=A2007;
1058 BWrite[x+7]=B2007;
1059 }
1060
1061 BWrite[0x4014]=B4014;
1062 SetNESSoundMap();
1063 InitializeInput();
1064}
1065
1066int GameLoaded=0;
1067void CloseGame(void)
1068{
c4980f9e 1069 FCEUI_StopMovie();
c62d2810 1070 if(GameLoaded)
1071 {
1072 if(FCEUGameInfo.type!=GIT_NSF)
92764e62 1073 FCEU_FlushGameCheats(0,0);
c62d2810 1074 #ifdef NETWORK
1075 if(FSettings.NetworkPlay) KillNetplay();
15300263 1076 #endif
c4980f9e 1077 GameInterface(GI_CLOSE, 0);
c62d2810 1078 CloseGenie();
1079 GameLoaded=0;
1080 }
1081}
1082
1083void ResetGameLoaded(void)
1084{
1085 if(GameLoaded) CloseGame();
1086 GameStateRestore=0;
1087 PPU_hook=0;
d97315ac 1088 GameHBIRQHook=GameHBIRQHook2=0;
c62d2810 1089 GameExpSound.Fill=0;
1090 GameExpSound.RChange=0;
1091 if(GameExpSound.Kill)
1092 GameExpSound.Kill();
1093 GameExpSound.Kill=0;
1094 MapIRQHook=0;
1095 MMC5Hack=0;
1096 PAL&=1;
1097 pale=0;
1098
1099 FCEUGameInfo.name=0;
1100 FCEUGameInfo.type=GIT_CART;
1101 FCEUGameInfo.vidsys=GIV_USER;
1102 FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=-1;
1103 FCEUGameInfo.inputfc=-1;
6244011f 1104
1105 FCEUGameInfo.soundchan=0;
1106 FCEUGameInfo.soundrate=0;
1107 FCEUGameInfo.cspecial=0;
c62d2810 1108}
1109
5a2aa426 1110char lastLoadedGameName [2048];
989672f4 1111int LoadGameLastError = 0;
d97315ac 1112int UNIFLoad(const char *name, int fp);
1113int iNESLoad(const char *name, int fp);
1114int FDSLoad(const char *name, int fp);
1115int NSFLoad(int fp);
5a2aa426 1116
c62d2810 1117FCEUGI *FCEUI_LoadGame(char *name)
1118{
5a2aa426 1119 char name2[512];
892b1f6c 1120 int have_movie = 0, have_ips = 0;
c62d2810 1121 int fp;
1122
b2b95d2e 1123 //Exit=1;
989672f4 1124 LoadGameLastError = 0;
c62d2810 1125 ResetGameLoaded();
1126
5a2aa426 1127 strncpy(name2, name, sizeof(name2));
1128 name2[sizeof(name2)-1] = 0;
1129
1130 fp=FCEU_fopen(name2,"rb");
c62d2810 1131 if(!fp)
1132 {
1133 FCEU_PrintError("Error opening \"%s\"!",name);
989672f4 1134 LoadGameLastError = 1;
c62d2810 1135 return 0;
1136 }
1137
5a2aa426 1138 {
1139 char *p = name2 + strlen(name2) - 4;
892b1f6c 1140 if (strcasecmp(p, ".fcm") == 0) printf("movie detected\n"), have_movie = 1;
1141 if (strcasecmp(p, ".ips") == 0) printf("ips detected\n"), have_ips = 1;
1142 if (have_movie || have_ips)
5a2aa426 1143 {
1144 // movie detected
5a2aa426 1145 FCEU_fclose(fp);
1146 *p = 0;
1147 fp=FCEU_fopen(name2,"rb");
892b1f6c 1148 if (!fp && p - name2 > 2)
1149 {
1150 for (p--; p > name2 && *p != '.'; p--);
1151 *p = 0;
1152 fp=FCEU_fopen(name2,"rb");
1153 }
5a2aa426 1154 if (!fp) {
892b1f6c 1155 printf("no ROM for ips/movie\n");
989672f4 1156 LoadGameLastError = 2;
5a2aa426 1157 return 0;
1158 }
5a2aa426 1159 }
1160 }
1161
892b1f6c 1162 // do IPS patch
1163 if (have_ips)
1164 {
1165 FCEU_fclose(fp);
1166 FILE *ips = fopen(name, "rb");
1167 if (!ips) return 0;
1168 fp=FCEU_fopen_forcemem(name2);
1169 if (!fp) { fclose(ips); return 0; }
1170 ApplyIPS(ips, fp); // closes ips
1171 }
1172
5a2aa426 1173 GetFileBase(name2);
1174 if(iNESLoad(name2,fp))
c62d2810 1175 goto endlseq;
1176 if(NSFLoad(fp))
1177 goto endlseq;
5a2aa426 1178 if(FDSLoad(name2,fp))
c62d2810 1179 goto endlseq;
5a2aa426 1180 if(UNIFLoad(name2,fp))
c62d2810 1181 goto endlseq;
1182
1183 FCEU_PrintError("An error occurred while loading the file.");
1184 FCEU_fclose(fp);
989672f4 1185 // format handlers may set LoadGameLastError themselves.
1186 if (LoadGameLastError == 0) LoadGameLastError = 3;
c62d2810 1187 return 0;
1188
1189 endlseq:
1190 FCEU_fclose(fp);
15300263 1191 GameLoaded=1;
c62d2810 1192
1193 FCEU_ResetVidSys();
1194 if(FCEUGameInfo.type!=GIT_NSF)
1195 if(FSettings.GameGenie)
1196 OpenGenie();
1197
1198 PowerNES();
1199 #ifdef NETWORK
1200 if(FSettings.NetworkPlay) InitNetplay();
1201 #endif
1202 SaveStateRefresh();
1203 if(FCEUGameInfo.type!=GIT_NSF)
1204 {
92764e62 1205 FCEU_LoadGamePalette();
1206 FCEU_LoadGameCheats(0);
c62d2810 1207 }
15300263 1208
c62d2810 1209 FCEU_ResetPalette();
1210 Exit=0;
5a2aa426 1211
1212 if (have_movie)
1213 FCEUI_LoadMovie(name, 1);
989672f4 1214
1215 strcpy(lastLoadedGameName, name2);
1216
c62d2810 1217 return(&FCEUGameInfo);
1218}
1219
1220
1221void FCEU_ResetVidSys(void)
1222{
1223 int w;
1224
1225 if(FCEUGameInfo.vidsys==GIV_NTSC)
1226 w=0;
1227 else if(FCEUGameInfo.vidsys==GIV_PAL)
1228 w=1;
1229 else
1230 w=FSettings.PAL;
1231
1232 if(w)
1233 {
1234 PAL=1;
c62d2810 1235 FSettings.FirstSLine=FSettings.UsrFirstSLine[1];
1236 FSettings.LastSLine=FSettings.UsrLastSLine[1];
1237 }
1238 else
1239 {
1240 PAL=0;
c62d2810 1241 FSettings.FirstSLine=FSettings.UsrFirstSLine[0];
1242 FSettings.LastSLine=FSettings.UsrLastSLine[0];
1243 }
0b65fdb3 1244 printf("ResetVidSys: PAL = %i\n", PAL);
c62d2810 1245 SetSoundVariables();
1246}
1247
1248int FCEUI_Initialize(void)
1249{
1250 if(!InitVirtualVideo())
1251 return 0;
1252 memset(&FSettings,0,sizeof(FSettings));
1253 FSettings.UsrFirstSLine[0]=8;
1254 FSettings.UsrFirstSLine[1]=0;
1255 FSettings.UsrLastSLine[0]=FSettings.UsrLastSLine[1]=239;
92764e62 1256 FSettings.SoundVolume=100;
6244011f 1257
1258 FCEUI_Initialize098();
1259 FCEUI_SetEmuMode(0);
1260
c62d2810 1261 return 1;
1262}
1263
6244011f 1264void FCEUI_Kill(void)
1265{
1266 FCEU_KillGenie();
1267}
1268
1269static void EmLoop(void);
1270
a384bf44 1271int use098code = 0;
6244011f 1272void (*ResetNES)(void) = 0;
6244011f 1273void (*FCEUI_Emulate)(void) = 0;
1274
1275void FCEUI_SetEmuMode(int is_new)
1276{
a384bf44 1277 use098code = is_new;
6244011f 1278 if (is_new)
1279 {
1280 ResetNES=ResetNES098;
6244011f 1281 FCEUI_Emulate=FCEUI_Emulate098;
1282 }
1283 else
1284 {
1285 ResetNES=ResetNES081;
6244011f 1286 FCEUI_Emulate=EmLoop;
1287 }
1288}
1289
ea80a45b 1290void MMC5_hb(int); /* Ugh ugh ugh. */
e328100e 1291static void DoLine(void)
c62d2810 1292{
e328100e 1293 uint8 *target=XBuf+scanline*320+32;
1294
1295 LineUpdate(target);
c62d2810 1296
ea80a45b 1297 if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
1298
e328100e 1299 X6502_Run(256);
1300
f12b1f31 1301 // check: Battletoads & Double Dragon, Addams Family
1302 // sky glitches in SMB1 if done wrong
e328100e 1303 FakedLineUpdate();
1304
1305#ifdef FRAMESKIP
1306 if(!FSkip)
1307#endif
21afaa36 1308 if(scanline>=FSettings.FirstSLine && scanline<=FSettings.LastSLine)
1309 {
1310 if(SpriteON && spork)
1311 CopySprites(target);
e328100e 1312
21afaa36 1313 LineUpdateEnd(target);
1314 }
e328100e 1315 sphitx=0x100;
1316
1317 if(ScreenON || SpriteON)
1318 FetchSpriteData();
1319
1320 // DoHBlank();
1321 if(GameHBIRQHook && (ScreenON || SpriteON) && ((PPU[0]&0x38)!=0x18))
15300263 1322 {
e328100e 1323 X6502_Run(6);
1324 Fixit2();
1325 X6502_Run(4);
1326 GameHBIRQHook();
1327 X6502_Run(85-10-16);
c62d2810 1328 }
1329 else
1330 {
e328100e 1331 X6502_Run(6); // Tried 65, caused problems with Slalom(maybe others)
1332 Fixit2();
1333 X6502_Run(85-6-16);
c62d2810 1334 }
e328100e 1335
1336 if(SpriteON)
1337 RefreshSprites();
1338 if(GameHBIRQHook2 && (ScreenON || SpriteON))
1339 GameHBIRQHook2();
1340 scanline++;
1341 if (scanline<240)
1342 ResetRL(XBuf+scanline*320+32);
1343 X6502_Run(16);
c62d2810 1344}
c62d2810 1345
e328100e 1346
6244011f 1347static void EmLoop(void)
c62d2810 1348{
1349 for(;;)
1350 {
ea80a45b 1351 int x;
92e249b1 1352 uint32 scanlines_per_frame = PAL ? 312 : 262;
4fdfab07 1353 UpdateInput();
92764e62 1354 FCEU_ApplyPeriodicCheats();
4fdfab07 1355
1356 // FCEUPPU_Loop:
1357 if(ppudead) /* Needed for Knight Rider, possibly others. */
1358 {
6587f346 1359 //memset(XBuf, 0, 320*240);
a384bf44 1360 //X6502_Run(scanlines_per_frame*(256+85));
1361 int lines;
1362 for (lines=scanlines_per_frame;lines;lines--)
1363 X6502_Run(256+85);
4fdfab07 1364 ppudead--;
1365 goto update;
1366 }
ea80a45b 1367
c62d2810 1368 X6502_Run(256+85);
1369
1370 PPU[2]|=0x80;
1371 PPU[3]=PPUSPL=0; /* Not sure if this is correct. According
1372 to Matt Conte and my own tests, it is. Timing is probably
1373 off, though. NOTE: Not having this here
1374 breaks a Super Donkey Kong game. */
1375
1376 X6502_Run(12); /* I need to figure out the true nature and length
15300263 1377 of this delay.
c62d2810 1378 */
1379 if(FCEUGameInfo.type==GIT_NSF)
ea80a45b 1380 DoNSFFrame();
c62d2810 1381 else if(VBlankON)
1382 TriggerNMI();
1383
655f8df0 1384 // Note: this is needed for asm core
1385 // Warning: using 'scanline' var here breaks Castlevania III
1386 {
1387 int lines;
1388 X6502_Run(256+85-12);
1389 for (lines=scanlines_per_frame-242-1;lines;lines--)
1390 X6502_Run(256+85);
1391 }
1392 // X6502_Run((scanlines_per_frame-242)*(256+85)-12);
c62d2810 1393 PPU_status&=0x1f;
c62d2810 1394 X6502_Run(256);
ea80a45b 1395
c62d2810 1396 {
c62d2810 1397 if(ScreenON || SpriteON)
d97315ac 1398 {
c62d2810 1399 if(GameHBIRQHook)
1400 GameHBIRQHook();
ea80a45b 1401 if(PPU_hook)
1402 for(x=0;x<42;x++) {PPU_hook(0x2000); PPU_hook(0);} // ugh
d97315ac 1403 if(GameHBIRQHook2)
1404 GameHBIRQHook2();
1405 }
c62d2810 1406
4fdfab07 1407 X6502_Run(85-16);
c62d2810 1408
4fdfab07 1409 if(ScreenON || SpriteON)
1410 {
1411 RefreshAddr=TempAddr;
1412 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
1413 }
e328100e 1414 spork=0;
1415 ResetRL(XBuf+32);
4fdfab07 1416
1417 X6502_Run(16-kook);
1418 kook ^= 1;
c62d2810 1419 }
4fdfab07 1420
c62d2810 1421 if(FCEUGameInfo.type==GIT_NSF)
937bf65b 1422 {
6587f346 1423 // run scanlines for asm core to fuction
13624c8f 1424 for(scanline=0;scanline<240;scanline++)
1425 X6502_Run(256+85);
937bf65b 1426 }
c62d2810 1427 else
1428 {
1429 int x,max,maxref;
1430
1431 deemp=PPU[1]>>5;
4a1bf31b 1432 SetRefreshLine();
4fdfab07 1433 for(scanline=0;scanline<240;) // scanline is incremented in DoLine. Evil. :/
c62d2810 1434 {
1435 deempcnt[deemp]++;
e328100e 1436 DoLine();
c62d2810 1437 }
ea80a45b 1438 if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
c62d2810 1439 for(x=1,max=0,maxref=0;x<7;x++)
1440 {
1441 if(deempcnt[x]>max)
1442 {
1443 max=deempcnt[x];
1444 maxref=x;
1445 }
1446 deempcnt[x]=0;
1447 }
c62d2810 1448 SetNESDeemph(maxref,0);
1449 }
1450
4fdfab07 1451update:
47d0839e 1452 if(Exit)
1453 {
1454 //CloseGame();
1455 break;
1456 }
1457
c62d2810 1458 {
1459 int ssize;
1460
1461 ssize=FlushEmulateSound();
1462
4fdfab07 1463 timestampbase += timestamp;
1464 timestamp = 0;
1465
c62d2810 1466 #ifdef FRAMESKIP
1467 if(FSkip)
1468 {
1469 FCEU_PutImageDummy();
1470 FSkip--;
5232c20c 1471 FCEUD_Update(0,WaveFinalMono,ssize);
c62d2810 1472 }
1473 else
1474 #endif
1475 {
1476 FCEU_PutImage();
5232c20c 1477 FCEUD_Update(XBuf+8,WaveFinalMono,ssize);
c62d2810 1478 }
c62d2810 1479 }
1480
4fdfab07 1481 } // for
c62d2810 1482}
1483
c62d2810 1484void FCEUI_CloseGame(void)
1485{
1486 Exit=1;
1487}
1488
1489static void ResetPPU(void)
1490{
1491 VRAMBuffer=PPU[0]=PPU[1]=PPU[2]=PPU[3]=0;
1492 PPUSPL=0;
1493 PPUGenLatch=0;
1494 RefreshAddr=TempAddr=0;
1495 vtoggle = 0;
4fdfab07 1496 ppudead = 2;
1497 kook = 0;
c62d2810 1498}
1499
1500static void PowerPPU(void)
1501{
1502 memset(NTARAM,0x00,0x800);
1503 memset(PALRAM,0x00,0x20);
1504 memset(SPRAM,0x00,0x100);
1505 ResetPPU();
1506}
1507
6244011f 1508void ResetNES081(void)
c62d2810 1509{
92764e62 1510 if(!GameLoaded) return;
c4980f9e 1511 GameInterface(GI_RESETM2, 0);
c62d2810 1512 ResetSound();
1513 ResetPPU();
1514 X6502_Reset();
1515}
1516
cd9a6b51 1517#ifndef DEBUG_ASM_6502
b8da43fb 1518static void FCEU_MemoryRand(uint8 *ptr, uint32 size)
1519{
1520 int x=0;
1521 while(size)
1522 {
1523 *ptr=(x&4)?0xFF:0x00;
1524 x++;
1525 size--;
1526 ptr++;
1527 }
1528}
cd9a6b51 1529#endif
b8da43fb 1530
642070a9 1531void PowerNES(void)
c62d2810 1532{
1533 if(!GameLoaded) return;
1534
1535 FCEU_CheatResetRAM();
1536 FCEU_CheatAddRAM(2,0,RAM);
1537
1538 GeniePower();
1539
b8da43fb 1540#ifndef DEBUG_ASM_6502
1541 FCEU_MemoryRand(RAM,0x800);
1542#else
c62d2810 1543 memset(RAM,0x00,0x800);
b8da43fb 1544#endif
c62d2810 1545 ResetMapping();
c62d2810 1546 PowerSound();
1547 PowerPPU();
642070a9 1548
1549 if (use098code)
1550 FCEUPPU_Power();
1551
1552 /* Have the external game hardware "powered" after the internal NES stuff.
1553 Needed for the NSF code and VS System code.
1554 */
0bb3fe12 1555 GameInterface(GI_POWER, 0);
15d2d258 1556 if(FCEUGameInfo.type==GIT_VSUNI)
1557 FCEU_VSUniPower();
b8da43fb 1558#ifdef ASM_6502
1559 if (geniestage)
1560 GenieSetPages(0);
1561#endif
15d2d258 1562 timestampbase=0;
c62d2810 1563 X6502_Power();
15d2d258 1564 FCEU_PowerCheats();
c62d2810 1565}
1566
890e37ba 1567
1568/* savestate stuff */
1569uint16 TempAddrT,RefreshAddrT;
1570
1571SFORMAT FCEUPPU_STATEINFO[]={
1572 { NTARAM, 0x800, "NTAR"},
1573 { PALRAM, 0x20, "PRAM"},
1574 { SPRAM, 0x100, "SPRA"},
1575 { PPU, 0x4, "PPUR"},
1576 { &XOffset, 1, "XOFF"},
1577 { &vtoggle, 1, "VTOG"},
1578 { &RefreshAddrT, 2|RLSB, "RADD"},
1579 { &TempAddrT, 2|RLSB, "TADD"},
1580 { &VRAMBuffer, 1, "VBUF"},
1581 { &PPUGenLatch, 1, "PGEN"},
1582 // from 0.98.15
1583 { &kook, 1, "KOOK"},
1584 { &ppudead, 1, "DEAD"},
1585 { &PPUSPL, 1, "PSPL"},
1586 { 0 }
1587 };
1588
1589
ARM optimized FCE Ultra port