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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
c8c88d89 59#ifdef __arm__
60#include "drivers/arm/asmutils.h"
6587f346 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
282becab 115#ifdef DEBUG_ASM_6502
116extern uint8 nes_internal_ram[0x800];
117#else
92e249b1 118static void asmcpu_update(int32 cycles)
119{
92e249b1 120 // some code from x6502.c
121 fhcnt-=cycles;
122 if(fhcnt<=0)
123 {
124 FrameSoundUpdate();
125 fhcnt+=fhinc;
126 }
127
128 if(PCMIRQCount>0)
129 {
130 PCMIRQCount-=cycles;
131 if(PCMIRQCount<=0)
132 {
133 vdis=1;
134 if((PSG[0x10]&0x80) && !(PSG[0x10]&0x40))
135 {
136 extern uint8 SIRQStat;
137 SIRQStat|=0x80;
138 X6502_IRQBegin(FCEU_IQDPCM);
139 }
140 }
141 }
142}
cd9a6b51 143#endif
92e249b1 144
145void asmcpu_unpack(void)
146{
147 nes_registers[0] = X.A << 24;
148 nes_registers[1] = X.X;
149 nes_registers[2] = X.Y;
150 pc_base = 0;
151 nes_registers[3] = X.PC;
c0bf6f9f 152 X6502_Rebase_a();
92e249b1 153 nes_registers[4] = X.S << 24;
154 nes_registers[4]|= X.IRQlow << 8;
0bb3fe12 155 if (MapIRQHook)
156 nes_registers[4] |= 1<<16; // MapIRQHook set bit
8fa5eb33 157 nes_registers[7] = (uint32)X.count << 16;
92e249b1 158
159 // NVUB DIZC
160 nes_registers[4]|= X.P & 0x5d;
161 nes_registers[5] = X.P << 24; // N
162 if (!(X.P&0x02)) nes_registers[5] |= 1; // Z
282becab 163
164#ifdef DEBUG_ASM_6502
165 memcpy(nes_internal_ram, RAM, 0x800);
166#endif
92e249b1 167}
168
169void asmcpu_pack(void)
170{
171 X.A = nes_registers[0] >> 24;
172 X.X = nes_registers[1];
173 X.Y = nes_registers[2];
174 X.PC= nes_registers[3] - pc_base;
175 X.S = nes_registers[4] >> 24;
176 X.IRQlow = nes_registers[4] >> 8;
8fa5eb33 177 X.count = (int32) nes_registers[7] >> 16;
92e249b1 178
179 // NVUB DIZC
180 X.P = nes_registers[4] & 0x5d;
181 if ( nes_registers[5]&0x80000000) X.P |= 0x80; // N
182 if (!(nes_registers[5]&0x000000ff)) X.P |= 0x02; // Z
183}
184#endif
185
c62d2810 186DECLFW(BNull)
187{
188
189}
190
191DECLFR(ANull)
192{
282becab 193 //printf("open [%04x] %02x @ %04x (%04x)\n", A, X.DB, X.PC, X.PC&0x7ff);
c62d2810 194 return(X.DB);
195}
196
197int AllocGenieRW(void)
198{
199 if(!(AReadG=FCEU_malloc(0x8000*sizeof(readfunc))))
200 return 0;
201 if(!(BWriteG=FCEU_malloc(0x8000*sizeof(writefunc))))
202 return 0;
203 RWWrap=1;
204 return 1;
205}
206
207void FlushGenieRW(void)
208{
209 int32 x;
210
211 if(RWWrap)
212 {
213 for(x=0;x<0x8000;x++)
214 {
215 ARead[x+0x8000]=AReadG[x];
216 BWrite[x+0x8000]=BWriteG[x];
217 }
b8da43fb 218#ifdef ASM_6502
219 GenieSetPages(1);
220#endif
c62d2810 221 free(AReadG);
222 free(BWriteG);
223 AReadG=0;
224 BWriteG=0;
225 RWWrap=0;
226 }
227}
228
229readfunc FASTAPASS(1) GetReadHandler(int32 a)
230{
231 if(a>=0x8000 && RWWrap)
232 return AReadG[a-0x8000];
233 else
234 return ARead[a];
235}
236
237void FASTAPASS(3) SetReadHandler(int32 start, int32 end, readfunc func)
238{
239 int32 x;
240
241 if(!func)
242 func=ANull;
243
244 if(RWWrap)
245 for(x=end;x>=start;x--)
246 {
247 if(x>=0x8000)
248 AReadG[x-0x8000]=func;
249 else
250 ARead[x]=func;
251 }
252 else
253
254 for(x=end;x>=start;x--)
255 ARead[x]=func;
256}
257
258writefunc FASTAPASS(1) GetWriteHandler(int32 a)
259{
260 if(RWWrap && a>=0x8000)
261 return BWriteG[a-0x8000];
262 else
263 return BWrite[a];
264}
265
266void FASTAPASS(3) SetWriteHandler(int32 start, int32 end, writefunc func)
267{
268 int32 x;
269
270 if(!func)
271 func=BNull;
272
273 if(RWWrap)
274 for(x=end;x>=start;x--)
275 {
276 if(x>=0x8000)
277 BWriteG[x-0x8000]=func;
278 else
279 BWrite[x]=func;
280 }
281 else
282 for(x=end;x>=start;x--)
283 BWrite[x]=func;
284}
285
286uint8 vtoggle=0;
287uint8 XOffset=0;
288
289uint32 TempAddr,RefreshAddr;
290
c62d2810 291
292/* scanline is equal to the current visible scanline we're on. */
293
294int scanline;
c62d2810 295
9115e7d2 296uint8 GameMemBlock[131072] __attribute__ ((aligned (4)));
297uint8 NTARAM[0x800] __attribute__ ((aligned (4)));
298uint8 PALRAM[0x20] __attribute__ ((aligned (4)));
92e249b1 299#if !defined(ASM_6502) || defined(DEBUG_ASM_6502)
9115e7d2 300uint8 RAM[0x800] __attribute__ ((aligned (4)));
af32b6c2 301#endif
9115e7d2 302
c62d2810 303uint8 PPU[4];
304uint8 PPUSPL;
305
c62d2810 306uint8 PAL=0;
307
5232c20c 308
c62d2810 309#define MMC5BGVRAMADR(V) &MMC5BGVPage[(V)>>10][(V)]
310#define VRAMADR(V) &VPage[(V)>>10][(V)]
15300263 311
4fdfab07 312static int linestartts;
313static int tofix=0;
314
e328100e 315static uint8 *Plinef;
316
317extern uint8 sprlinebuf[256+8];
318extern int32 sphitx;
319extern uint8 sphitdata;
320
321extern int spork; /* spork the world. Any sprites on this line?
322 Then this will be set to 1. Needed for zapper
323 emulation and *gasp* sprite emulation.
324 */
325
326static void ResetRL(uint8 *target)
4fdfab07 327{
e328100e 328 if(InputScanlineHook)
329 InputScanlineHook(0,0,0,0);
330 Plinef=target;
4fdfab07 331 linestartts=timestamp*48+X6502_GetCycleCount();
332 tofix=1;
333}
334
335static INLINE void Fixit1(void);
336
e328100e 337/* faking FCEUPPU_LineUpdate() from later versions of the emu */
338static void FakedLineUpdate(void)
4fdfab07 339{
340 #define TOFIXNUM (272-0x4)
341 int lastpixel;
342
e328100e 343 if (scanline >= 240) return;
344
345 if (tofix || sphitx != 0x100)
4fdfab07 346 {
347 lastpixel = (timestamp*48-linestartts)>>4;
348 if (PAL) lastpixel += lastpixel>>4;
4fdfab07 349 //printf("lastpixel: %i\n", lastpixel);
e328100e 350 }
351
352 if (tofix && lastpixel>=TOFIXNUM)
353 {
354 Fixit1();
355 tofix=0;
356 }
4fdfab07 357
e328100e 358 // CheckSpriteHit()
359 if(sphitx!=0x100)
360 {
361 int l=lastpixel-16;
362 int x;
363
364 for(x=sphitx;x<(sphitx+8) && x<l;x++)
4fdfab07 365 {
e328100e 366 if((sphitdata&(0x80>>(x-sphitx))) && !(Plinef[x]&64))
367 {
368 PPU_status|=0x40;
369 sphitx=0x100;
370 break;
371 }
4fdfab07 372 }
373 }
374}
375
376
c62d2810 377static DECLFW(BRAML)
15300263 378{
c62d2810 379 RAM[A]=V;
380}
381
382static DECLFW(BRAMH)
383{
384 RAM[A&0x7FF]=V;
385}
386
387static DECLFR(ARAML)
388{
389 return RAM[A];
390}
391
392static DECLFR(ARAMH)
393{
394 return RAM[A&0x7FF];
395}
396
15300263 397
c62d2810 398static DECLFR(A2002)
399{
4fdfab07 400 /* merged */
c62d2810 401 uint8 ret;
4fdfab07 402
e328100e 403 FakedLineUpdate();
c62d2810 404 ret = PPU_status;
4fdfab07 405 ret|=PPUGenLatch&0x1F;
c62d2810 406 vtoggle=0;
407 PPU_status&=0x7F;
4fdfab07 408 PPUGenLatch=ret;
ea80a45b 409 //dprintf("r [2002] %02x",ret);
4fdfab07 410 return ret;
c62d2810 411}
412
413static DECLFR(A200x)
414{
4fdfab07 415 /* merged */
e328100e 416 FakedLineUpdate();
c62d2810 417 return PPUGenLatch;
418}
419
420static DECLFR(A2007)
421{
4fdfab07 422 /* merged */
c62d2810 423 uint8 ret;
424 uint32 tmp=RefreshAddr&0x3FFF;
425
e328100e 426 FakedLineUpdate();
4fdfab07 427
428 ret=VRAMBuffer;
429
c62d2810 430 if(PPU_hook) PPU_hook(tmp);
4fdfab07 431 PPUGenLatch=VRAMBuffer;
15300263 432 if(tmp<0x2000)
c62d2810 433 {
434 VRAMBuffer=VPage[tmp>>10][tmp];
435 }
15300263 436 else
c62d2810 437 {
438 VRAMBuffer=vnapage[(tmp>>10)&0x3][tmp&0x3FF];
439 }
440
441 if (INC32) RefreshAddr+=32;
442 else RefreshAddr++;
443 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
4fdfab07 444 dprintf("r [2007] %02x",ret);
c62d2810 445 return ret;
446}
447
448static DECLFW(B2000)
449{
4fdfab07 450 /* NMI2? */
e328100e 451 FakedLineUpdate();
c62d2810 452 PPUGenLatch=V;
453 PPU[0]=V;
454 TempAddr&=0xF3FF;
455 TempAddr|=(V&3)<<10;
456}
457
458static DECLFW(B2001)
459{
4fdfab07 460 /* merged */
e328100e 461 FakedLineUpdate();
c62d2810 462 PPUGenLatch=V;
463 PPU[1]=V;
464 if(V&0xE0)
465 deemp=V>>5;
466 //printf("$%04x:$%02x, %d\n",X.PC,V,scanline);
467}
468
469static DECLFW(B2002)
470{
4fdfab07 471 /* merged */
c62d2810 472 PPUGenLatch=V;
473}
474
475static DECLFW(B2003)
476{
4fdfab07 477 /* merged */
c62d2810 478 PPUGenLatch=V;
479 PPU[3]=V;
480 PPUSPL=V&0x7;
481}
482
483static DECLFW(B2004)
484{
4fdfab07 485 /* merged */
c62d2810 486 PPUGenLatch=V;
4fdfab07 487 if(PPUSPL>=8)
c62d2810 488 {
489 if(PPU[3]>=8)
490 SPRAM[PPU[3]]=V;
491 }
492 else
493 {
494 //printf("$%02x:$%02x\n",PPUSPL,V);
495 SPRAM[PPUSPL]=V;
c62d2810 496 }
497 PPU[3]++;
4fdfab07 498 PPUSPL++;
5232c20c 499
c62d2810 500}
501
502static DECLFW(B2005)
503{
4fdfab07 504 /* merged */
c62d2810 505 uint32 tmp=TempAddr;
e328100e 506 FakedLineUpdate();
c62d2810 507 PPUGenLatch=V;
508 if (!vtoggle)
509 {
510 tmp&=0xFFE0;
511 tmp|=V>>3;
512 XOffset=V&7;
513 }
514 else
515 {
516 tmp&=0x8C1F;
517 tmp|=((V&~0x7)<<2);
518 tmp|=(V&7)<<12;
519 }
520
521 TempAddr=tmp;
522 vtoggle^=1;
523}
524
525static DECLFW(B2006)
526{
4fdfab07 527 /* merged */
e328100e 528 FakedLineUpdate();
4fdfab07 529
c62d2810 530 PPUGenLatch=V;
531 if(!vtoggle)
532 {
533 TempAddr&=0x00FF;
534 TempAddr|=(V&0x3f)<<8;
535 }
536 else
537 {
538 TempAddr&=0xFF00;
539 TempAddr|=V;
c62d2810 540
4fdfab07 541 RefreshAddr=TempAddr;
c62d2810 542 if(PPU_hook)
543 PPU_hook(RefreshAddr);
544 }
545 vtoggle^=1;
546}
547
548static DECLFW(B2007)
15300263 549{
4fdfab07 550 /* merged */
c62d2810 551 uint32 tmp=RefreshAddr&0x3FFF;
c62d2810 552 PPUGenLatch=V;
553 if(tmp>=0x3F00)
554 {
4fdfab07 555 // hmmm....
556 if(!(tmp&0xf))
557 PALRAM[0x00]=PALRAM[0x04]=PALRAM[0x08]=PALRAM[0x0C]=V&0x3f;
558 else if(tmp&3) PALRAM[(tmp&0x1f)]=V&0x3f;
c62d2810 559 }
560 else if(tmp<0x2000)
561 {
562 if(PPUCHRRAM&(1<<(tmp>>10)))
563 VPage[tmp>>10][tmp]=V;
564 }
565 else
15300263 566 {
c62d2810 567 if(PPUNTARAM&(1<<((tmp&0xF00)>>10)))
568 vnapage[((tmp&0xF00)>>10)][tmp&0x3FF]=V;
569 }
570 if (INC32) RefreshAddr+=32;
571 else RefreshAddr++;
572 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
573}
574
575static DECLFW(B4014)
15300263 576{
c62d2810 577 uint32 t=V<<8;
578 int x;
4fdfab07 579
c62d2810 580 for(x=0;x<256;x++)
581 B2004(0x2004,X.DB=ARead[t+x](t+x));
582 X6502_AddCycles(512);
583}
584
5232c20c 585void BGRender(uint8 *target)
c62d2810 586{
4a1bf31b 587 uint32 tem, vofs;
588 vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
589
590 Pal[0]|=64;
591 Pal[4]|=64;
592 Pal[8]|=64;
593 Pal[0xC]|=64;
594 RefreshLine(target-XOffset, vofs);
595 Pal[0]&=63;
596 Pal[4]&=63;
597 Pal[8]&=63;
598 Pal[0xC]&=63;
599
c62d2810 600 if(!(PPU[1]&2))
601 {
9115e7d2 602 tem=Pal[0]|0x40;
603 tem|=tem<<8;
604 tem|=tem<<16;
c62d2810 605 *(uint32 *)target=*(uint32 *)(target+4)=tem;
606 }
607}
608
609#ifdef FRAMESKIP
5232c20c 610int FSkip=0;
c62d2810 611void FCEUI_FrameSkip(int x)
612{
613 FSkip=x;
614}
615#endif
616
617/* This is called at the beginning of each visible scanline */
e328100e 618static void LineUpdate(uint8 *target)
c62d2810 619{
620 uint32 tem;
c0623dcf 621 int y;
c62d2810 622
078eb4c0 623 /* PRefreshLine() will not get called on skipped frames. This
624 * could cause a problem, but the solution would be rather complex,
625 * due to the current sprite 0 hit code.
626 */
c0623dcf 627 if(FSkip)
628 {
629 y=(int)SPRAM[0] + 1;
630 if(scanline==y && SpriteON) PPU_status|=0x40; // hack
631 return;
632 }
078eb4c0 633
ea089273 634 if(!ScreenON)
635 {
636 tem=Pal[0]|0x40;
637 tem|=tem << 8;
638 tem|=tem << 16;
639 FCEU_dwmemset(target,tem,256);
640 }
641 else if(scanline < FSettings.FirstSLine || scanline > FSettings.LastSLine)
e328100e 642 {
643 if(PPU_hook)
644 PRefreshLine();
c0623dcf 645 y=(int)SPRAM[0] + 1;
646 if(scanline==y && SpriteON) PPU_status|=0x40;
e328100e 647 }
648 else
649 {
ea089273 650 BGRender(target);
15300263 651 }
e328100e 652
c62d2810 653 if(InputScanlineHook)
e328100e 654 InputScanlineHook(target,spork?sprlinebuf:0,linestartts,256);
655}
656
657
658static void LineUpdateEnd(uint8 *target)
659{
c8c88d89 660#ifdef __arm__
e328100e 661 if(ScreenON || SpriteON) // Yes, very el-cheapo.
662 {
663 if(PPU[1]&0x01)
664 block_and(target, 256, 0x30);
665 }
666 if((PPU[1]>>5)==0x7)
667 block_or(target, 256, 0xc0);
668 else if(PPU[1]&0xE0)
669 block_or(target, 256, 0x40);
670 else
671 block_andor(target, 256, 0x3f, 0x80);
672#else
673 int x;
674
675 if(ScreenON || SpriteON) // Yes, very el-cheapo.
676 {
677 if(PPU[1]&0x01)
678 {
679 for(x=63;x>=0;x--)
680 *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])&0x30303030;
681 }
682 }
683 if((PPU[1]>>5)==0x7)
684 {
685 for(x=63;x>=0;x--)
686 *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0xc0c0c0c0;
687 }
688 else if(PPU[1]&0xE0)
689 for(x=63;x>=0;x--)
690 *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])|0x40404040;
691 else
692 for(x=63;x>=0;x--)
693 *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0x80808080;
694#endif
695
696 // black borders
697 ((uint32 *)target)[-2]=((uint32 *)target)[-1]=0;
698 ((uint32 *)target)[64]=((uint32 *)target)[65]=0;
c62d2810 699}
700
701#define PAL(c) ((c)+cc)
702
703
704static void PRefreshLine(void)
705{
078eb4c0 706 uint32 vofs;
707 int X1;
708 vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
709 void (*PPU_hook_)(uint32 A) = PPU_hook;
c62d2810 710
c62d2810 711
078eb4c0 712 for(X1=33;X1;X1--)
713 {
714 uint32 zz2;
715 uint32 vadr;
716
717 zz2=(RefreshAddr>>10)&3;
718 PPU_hook_(0x2000|(RefreshAddr&0xFFF));
719
720 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
721
722 PPU_hook_(vadr);
c62d2810 723
c62d2810 724 if((RefreshAddr&0x1f)==0x1f)
725 RefreshAddr^=0x41F;
726 else
727 RefreshAddr++;
078eb4c0 728 }
c62d2810 729}
730
4a1bf31b 731/* This high-level graphics MMC5 emulation code was written
732 for MMC5 carts in "CL" mode. It's probably not totally
733 correct for carts in "SL" mode.
734 */
735static void RefreshLine_MMC5Hack1(uint8 *P, uint32 vofs)
c62d2810 736{
4a1bf31b 737 int8 tochange, X1;
c62d2810 738
739 tochange=MMC5HackSPMode&0x1F;
740
741 for(X1=33;X1;X1--,P+=8)
742 {
743 uint8 *C;
5232c20c 744 uint8 cc,zz,zz2;
c62d2810 745 uint32 vadr;
746
15300263 747 if((tochange<=0 && MMC5HackSPMode&0x40) ||
c62d2810 748 (tochange>0 && !(MMC5HackSPMode&0x40)))
749 {
750 uint8 xs,ys;
751
15300263 752 xs=33-X1;
c62d2810 753 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
754 if(ys>=0x1E) ys-=0x1E;
755 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
756
757 C = MMC5HackVROMPTR+vadr;
758 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
759
760 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
761 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
762 }
763 else
764 {
765 zz=RefreshAddr&0x1F;
766 zz2=(RefreshAddr>>10)&3;
767 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
768 C = MMC5BGVRAMADR(vadr);
769 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
770 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
771 }
772 #include "fceline.h"
773
774 if((RefreshAddr&0x1f)==0x1f)
775 RefreshAddr^=0x41F;
776 else
777 RefreshAddr++;
778 tochange--;
779 }
4a1bf31b 780}
781
782static void RefreshLine_MMC5Hack2(uint8 *P, uint32 vofs)
783{
784 int8 tochange, X1;
c62d2810 785
786 tochange=MMC5HackSPMode&0x1F;
787
788 for(X1=33;X1;X1--,P+=8)
789 {
790 uint8 *C;
5232c20c 791 uint8 cc;
792 uint8 zz2;
c62d2810 793 uint32 vadr;
794
795 if((tochange<=0 && MMC5HackSPMode&0x40) ||
796 (tochange>0 && !(MMC5HackSPMode&0x40)))
797 {
798 uint8 xs,ys;
799
15300263 800 xs=33-X1;
c62d2810 801 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
802 if(ys>=0x1E) ys-=0x1E;
803 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
804
805 C = MMC5HackVROMPTR+vadr;
806 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
807
808 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
809 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
810 }
811 else
812 {
813 C=MMC5HackVROMPTR;
814 zz2=(RefreshAddr>>10)&3;
815 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
816 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
817 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
818 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
819 cc = vadr;
820 }
821 #include "fceline.h"
822 if((RefreshAddr&0x1f)==0x1f)
823 RefreshAddr^=0x41F;
824 else
825 RefreshAddr++;
826 tochange--;
827 }
4a1bf31b 828}
829
830static void RefreshLine_MMC5Hack3(uint8 *P, uint32 vofs)
831{
832 int8 X1;
c62d2810 833
c62d2810 834 for(X1=33;X1;X1--,P+=8)
835 {
15300263 836 uint8 *C;
5232c20c 837 uint8 cc;
838 uint8 zz2;
15300263 839 uint32 vadr;
c62d2810 840
841 C=MMC5HackVROMPTR;
842 zz2=(RefreshAddr>>10)&3;
843 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
15300263 844 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
c62d2810 845 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
846 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
847 cc = vadr;
848
849 #include "fceline.h"
850 if((RefreshAddr&0x1f)==0x1f)
851 RefreshAddr^=0x41F;
852 else
853 RefreshAddr++;
854 }
4a1bf31b 855}
856
857static void RefreshLine_MMC5Hack4(uint8 *P, uint32 vofs)
858{
859 int8 X1;
860
c62d2810 861 for(X1=33;X1;X1--,P+=8)
862 {
863 uint8 *C;
5232c20c 864 uint8 cc,zz,zz2;
c62d2810 865 uint32 vadr;
866
867 zz=RefreshAddr&0x1F;
868 zz2=(RefreshAddr>>10)&3;
869 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
870 C = MMC5BGVRAMADR(vadr);
871 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
872 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
873
874 #include "fceline.h"
15300263 875
c62d2810 876 if((RefreshAddr&0x1f)==0x1f)
877 RefreshAddr^=0x41F;
878 else
879 RefreshAddr++;
15300263 880 }
4a1bf31b 881}
882
883static void RefreshLine_PPU_hook(uint8 *P, uint32 vofs)
884{
885 int8 X1;
078eb4c0 886 void (*PPU_hook_)(uint32 A) = PPU_hook;
887 uint32 rfraddr = RefreshAddr;
888 uint8 *page = vnapage[(rfraddr>>10)&3];
c62d2810 889
c62d2810 890 for(X1=33;X1;X1--,P+=8)
891 {
15300263 892 uint8 *C;
078eb4c0 893 uint8 cc,zz;
15300263 894 uint32 vadr;
c62d2810 895
078eb4c0 896 zz=rfraddr&0x1F;
897 PPU_hook_(0x2000|(rfraddr&0xFFF));
898 cc=page[0x3c0+(zz>>2)+((rfraddr&0x380)>>4)];
899 cc=((cc >> ((zz&2) + ((rfraddr&0x40)>>4))) &3) <<2;
900 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
c62d2810 901 C = VRAMADR(vadr);
902
903 #include "fceline.h"
904
078eb4c0 905 PPU_hook_(vadr);
c62d2810 906
078eb4c0 907 if((rfraddr&0x1f)==0x1f) {
908 rfraddr^=0x41F;
909 page = vnapage[(rfraddr>>10)&3];
910 } else
911 rfraddr++;
c62d2810 912 }
078eb4c0 913 RefreshAddr = rfraddr;
4a1bf31b 914}
915
9115e7d2 916static void RefreshLine_normal(uint8 *P, uint32 vofs) // vofs is 0x107 max
4a1bf31b 917{
918 int8 X1;
9115e7d2 919 uint32 rfraddr = RefreshAddr;
920 uint8 *page = vnapage[(rfraddr>>10)&3];
921 uint32 cc2=0;
4a1bf31b 922
9115e7d2 923 if ((rfraddr&0xc)!=0)
924 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
925
926 for (X1=33;X1;X1--,P+=8)
c62d2810 927 {
9115e7d2 928 uint8 cc,*C;
c62d2810 929 uint32 vadr;
930
9115e7d2 931 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
c62d2810 932 C = VRAMADR(vadr);
9115e7d2 933 if ((rfraddr&0xc)==0)
934 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
935 cc=((cc2 >> ((rfraddr&2) + ((rfraddr&0x40)>>4) + ((rfraddr&0xc)<<1))) & 3) << 2;
4a1bf31b 936
9115e7d2 937 #include "fceline.h"
15300263 938
9115e7d2 939 if((rfraddr&0x1f)==0x1f) {
940 rfraddr^=0x41F;
941 page = vnapage[(rfraddr>>10)&3];
942 } else
943 rfraddr++;
c62d2810 944 }
9115e7d2 945 RefreshAddr = rfraddr;
4a1bf31b 946}
c62d2810 947
4a1bf31b 948static void SetRefreshLine(void)
949{
950 if(MMC5Hack && geniestage!=1)
951 {
952 if(MMC5HackCHRMode==0 && (MMC5HackSPMode&0x80))
953 {
954 if (RefreshLine != RefreshLine_MMC5Hack1) printf("set refr RefreshLine_MMC5Hack1\n");
955 RefreshLine = RefreshLine_MMC5Hack1;
956 }
957 else if(MMC5HackCHRMode==1 && (MMC5HackSPMode&0x80))
958 {
959 if (RefreshLine != RefreshLine_MMC5Hack2) printf("set refr RefreshLine_MMC5Hack2\n");
960 RefreshLine = RefreshLine_MMC5Hack2;
961 }
962 else if(MMC5HackCHRMode==1)
963 {
964 if (RefreshLine != RefreshLine_MMC5Hack3) printf("set refr RefreshLine_MMC5Hack3\n");
965 RefreshLine = RefreshLine_MMC5Hack3;
966 }
967 else
968 {
969 if (RefreshLine != RefreshLine_MMC5Hack4) printf("set refr RefreshLine_MMC5Hack4\n");
970 RefreshLine = RefreshLine_MMC5Hack4;
971 }
972 } // End if(MMC5Hack)
973 else if(PPU_hook)
974 {
975 if (RefreshLine != RefreshLine_PPU_hook) printf("set refr RefreshLine_PPU_hook\n");
976 RefreshLine = RefreshLine_PPU_hook;
977 }
978 else
979 {
980 if (RefreshLine != RefreshLine_normal) printf("set refr RefreshLine_normal\n");
981 RefreshLine = RefreshLine_normal;
982 }
c62d2810 983}
984
4fdfab07 985static INLINE
937bf65b 986void Fixit2(void)
c62d2810 987{
988 if(ScreenON || SpriteON)
989 {
990 uint32 rad=RefreshAddr;
991 rad&=0xFBE0;
992 rad|=TempAddr&0x041f;
993 RefreshAddr=rad;
994 //PPU_hook(RefreshAddr,-1);
995 }
996}
997
4fdfab07 998static INLINE
937bf65b 999void Fixit1(void)
c62d2810 1000{
1001 if(ScreenON || SpriteON)
1002 {
1003 uint32 rad=RefreshAddr;
1004
1005 if((rad&0x7000)==0x7000)
1006 {
1007 rad^=0x7000;
1008 if((rad&0x3E0)==0x3A0)
1009 {
1010 rad^=0x3A0;
1011 rad^=0x800;
1012 }
1013 else
1014 {
1015 if((rad&0x3E0)==0x3e0)
1016 rad^=0x3e0;
1017 else rad+=0x20;
1018 }
1019 }
1020 else
1021 rad+=0x1000;
1022 RefreshAddr=rad;
1023 //PPU_hook(RefreshAddr,-1);
1024 }
1025}
1026
937bf65b 1027
5232c20c 1028// ============================//
1029// end of new code
1030// ===========================//
c62d2810 1031
1032void ResetMapping(void)
1033{
1034 int x;
1035
1036 SetReadHandler(0x0000,0xFFFF,ANull);
1037 SetWriteHandler(0x0000,0xFFFF,BNull);
1038
1039 SetReadHandler(0,0x7FF,ARAML);
1040 SetWriteHandler(0,0x7FF,BRAML);
1041
1042 SetReadHandler(0x800,0x1FFF,ARAMH); /* Part of a little */
1043 SetWriteHandler(0x800,0x1FFF,BRAMH); /* hack for a small speed boost. */
1044
1045 for(x=0x2000;x<0x4000;x+=8)
1046 {
1047 ARead[x]=A200x;
1048 BWrite[x]=B2000;
1049 ARead[x+1]=A200x;
1050 BWrite[x+1]=B2001;
1051 ARead[x+2]=A2002;
1052 BWrite[x+2]=B2002;
1053 ARead[x+3]=A200x;
1054 BWrite[x+3]=B2003;
1055 ARead[x+4]=A200x;
1056 BWrite[x+4]=B2004;
1057 ARead[x+5]=A200x;
1058 BWrite[x+5]=B2005;
1059 ARead[x+6]=A200x;
1060 BWrite[x+6]=B2006;
1061 ARead[x+7]=A2007;
1062 BWrite[x+7]=B2007;
1063 }
1064
1065 BWrite[0x4014]=B4014;
1066 SetNESSoundMap();
1067 InitializeInput();
1068}
1069
1070int GameLoaded=0;
1071void CloseGame(void)
1072{
c4980f9e 1073 FCEUI_StopMovie();
c62d2810 1074 if(GameLoaded)
1075 {
1076 if(FCEUGameInfo.type!=GIT_NSF)
92764e62 1077 FCEU_FlushGameCheats(0,0);
c62d2810 1078 #ifdef NETWORK
1079 if(FSettings.NetworkPlay) KillNetplay();
15300263 1080 #endif
c4980f9e 1081 GameInterface(GI_CLOSE, 0);
c62d2810 1082 CloseGenie();
1083 GameLoaded=0;
1084 }
1085}
1086
1087void ResetGameLoaded(void)
1088{
1089 if(GameLoaded) CloseGame();
1090 GameStateRestore=0;
1091 PPU_hook=0;
d97315ac 1092 GameHBIRQHook=GameHBIRQHook2=0;
c62d2810 1093 GameExpSound.Fill=0;
1094 GameExpSound.RChange=0;
1095 if(GameExpSound.Kill)
1096 GameExpSound.Kill();
1097 GameExpSound.Kill=0;
1098 MapIRQHook=0;
1099 MMC5Hack=0;
1100 PAL&=1;
1101 pale=0;
1102
1103 FCEUGameInfo.name=0;
1104 FCEUGameInfo.type=GIT_CART;
1105 FCEUGameInfo.vidsys=GIV_USER;
1106 FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=-1;
1107 FCEUGameInfo.inputfc=-1;
6244011f 1108
1109 FCEUGameInfo.soundchan=0;
1110 FCEUGameInfo.soundrate=0;
1111 FCEUGameInfo.cspecial=0;
c62d2810 1112}
1113
5a2aa426 1114char lastLoadedGameName [2048];
989672f4 1115int LoadGameLastError = 0;
d97315ac 1116int UNIFLoad(const char *name, int fp);
1117int iNESLoad(const char *name, int fp);
1118int FDSLoad(const char *name, int fp);
1119int NSFLoad(int fp);
5a2aa426 1120
c62d2810 1121FCEUGI *FCEUI_LoadGame(char *name)
1122{
5a2aa426 1123 char name2[512];
892b1f6c 1124 int have_movie = 0, have_ips = 0;
c62d2810 1125 int fp;
1126
b2b95d2e 1127 //Exit=1;
989672f4 1128 LoadGameLastError = 0;
c62d2810 1129 ResetGameLoaded();
1130
5a2aa426 1131 strncpy(name2, name, sizeof(name2));
1132 name2[sizeof(name2)-1] = 0;
1133
1134 fp=FCEU_fopen(name2,"rb");
c62d2810 1135 if(!fp)
1136 {
1137 FCEU_PrintError("Error opening \"%s\"!",name);
989672f4 1138 LoadGameLastError = 1;
c62d2810 1139 return 0;
1140 }
1141
5a2aa426 1142 {
1143 char *p = name2 + strlen(name2) - 4;
892b1f6c 1144 if (strcasecmp(p, ".fcm") == 0) printf("movie detected\n"), have_movie = 1;
1145 if (strcasecmp(p, ".ips") == 0) printf("ips detected\n"), have_ips = 1;
1146 if (have_movie || have_ips)
5a2aa426 1147 {
1148 // movie detected
5a2aa426 1149 FCEU_fclose(fp);
1150 *p = 0;
1151 fp=FCEU_fopen(name2,"rb");
892b1f6c 1152 if (!fp && p - name2 > 2)
1153 {
1154 for (p--; p > name2 && *p != '.'; p--);
1155 *p = 0;
1156 fp=FCEU_fopen(name2,"rb");
1157 }
5a2aa426 1158 if (!fp) {
892b1f6c 1159 printf("no ROM for ips/movie\n");
989672f4 1160 LoadGameLastError = 2;
5a2aa426 1161 return 0;
1162 }
5a2aa426 1163 }
1164 }
1165
892b1f6c 1166 // do IPS patch
1167 if (have_ips)
1168 {
1169 FCEU_fclose(fp);
1170 FILE *ips = fopen(name, "rb");
1171 if (!ips) return 0;
1172 fp=FCEU_fopen_forcemem(name2);
1173 if (!fp) { fclose(ips); return 0; }
1174 ApplyIPS(ips, fp); // closes ips
1175 }
1176
5a2aa426 1177 GetFileBase(name2);
1178 if(iNESLoad(name2,fp))
c62d2810 1179 goto endlseq;
1180 if(NSFLoad(fp))
1181 goto endlseq;
5a2aa426 1182 if(FDSLoad(name2,fp))
c62d2810 1183 goto endlseq;
5a2aa426 1184 if(UNIFLoad(name2,fp))
c62d2810 1185 goto endlseq;
1186
1187 FCEU_PrintError("An error occurred while loading the file.");
1188 FCEU_fclose(fp);
989672f4 1189 // format handlers may set LoadGameLastError themselves.
1190 if (LoadGameLastError == 0) LoadGameLastError = 3;
c62d2810 1191 return 0;
1192
1193 endlseq:
1194 FCEU_fclose(fp);
15300263 1195 GameLoaded=1;
c62d2810 1196
1197 FCEU_ResetVidSys();
1198 if(FCEUGameInfo.type!=GIT_NSF)
1199 if(FSettings.GameGenie)
1200 OpenGenie();
1201
1202 PowerNES();
1203 #ifdef NETWORK
1204 if(FSettings.NetworkPlay) InitNetplay();
1205 #endif
1206 SaveStateRefresh();
1207 if(FCEUGameInfo.type!=GIT_NSF)
1208 {
92764e62 1209 FCEU_LoadGamePalette();
1210 FCEU_LoadGameCheats(0);
c62d2810 1211 }
15300263 1212
c62d2810 1213 FCEU_ResetPalette();
1214 Exit=0;
5a2aa426 1215
1216 if (have_movie)
1217 FCEUI_LoadMovie(name, 1);
989672f4 1218
1219 strcpy(lastLoadedGameName, name2);
1220
c62d2810 1221 return(&FCEUGameInfo);
1222}
1223
1224
1225void FCEU_ResetVidSys(void)
1226{
1227 int w;
1228
1229 if(FCEUGameInfo.vidsys==GIV_NTSC)
1230 w=0;
1231 else if(FCEUGameInfo.vidsys==GIV_PAL)
1232 w=1;
1233 else
1234 w=FSettings.PAL;
1235
1236 if(w)
1237 {
1238 PAL=1;
c62d2810 1239 FSettings.FirstSLine=FSettings.UsrFirstSLine[1];
1240 FSettings.LastSLine=FSettings.UsrLastSLine[1];
1241 }
1242 else
1243 {
1244 PAL=0;
c62d2810 1245 FSettings.FirstSLine=FSettings.UsrFirstSLine[0];
1246 FSettings.LastSLine=FSettings.UsrLastSLine[0];
1247 }
0b65fdb3 1248 printf("ResetVidSys: PAL = %i\n", PAL);
c62d2810 1249 SetSoundVariables();
1250}
1251
1252int FCEUI_Initialize(void)
1253{
1254 if(!InitVirtualVideo())
1255 return 0;
1256 memset(&FSettings,0,sizeof(FSettings));
1257 FSettings.UsrFirstSLine[0]=8;
1258 FSettings.UsrFirstSLine[1]=0;
1259 FSettings.UsrLastSLine[0]=FSettings.UsrLastSLine[1]=239;
92764e62 1260 FSettings.SoundVolume=100;
6244011f 1261
1262 FCEUI_Initialize098();
1263 FCEUI_SetEmuMode(0);
1264
c62d2810 1265 return 1;
1266}
1267
6244011f 1268void FCEUI_Kill(void)
1269{
1270 FCEU_KillGenie();
1271}
1272
1273static void EmLoop(void);
1274
a384bf44 1275int use098code = 0;
6244011f 1276void (*ResetNES)(void) = 0;
6244011f 1277void (*FCEUI_Emulate)(void) = 0;
1278
1279void FCEUI_SetEmuMode(int is_new)
1280{
a384bf44 1281 use098code = is_new;
6244011f 1282 if (is_new)
1283 {
1284 ResetNES=ResetNES098;
6244011f 1285 FCEUI_Emulate=FCEUI_Emulate098;
1286 }
1287 else
1288 {
1289 ResetNES=ResetNES081;
6244011f 1290 FCEUI_Emulate=EmLoop;
1291 }
1292}
1293
ea80a45b 1294void MMC5_hb(int); /* Ugh ugh ugh. */
e328100e 1295static void DoLine(void)
c62d2810 1296{
e328100e 1297 uint8 *target=XBuf+scanline*320+32;
1298
1299 LineUpdate(target);
c62d2810 1300
ea80a45b 1301 if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
1302
e328100e 1303 X6502_Run(256);
1304
f12b1f31 1305 // check: Battletoads & Double Dragon, Addams Family
1306 // sky glitches in SMB1 if done wrong
e328100e 1307 FakedLineUpdate();
1308
1309#ifdef FRAMESKIP
1310 if(!FSkip)
1311#endif
21afaa36 1312 if(scanline>=FSettings.FirstSLine && scanline<=FSettings.LastSLine)
1313 {
1314 if(SpriteON && spork)
1315 CopySprites(target);
e328100e 1316
21afaa36 1317 LineUpdateEnd(target);
1318 }
e328100e 1319 sphitx=0x100;
1320
1321 if(ScreenON || SpriteON)
1322 FetchSpriteData();
1323
1324 // DoHBlank();
1325 if(GameHBIRQHook && (ScreenON || SpriteON) && ((PPU[0]&0x38)!=0x18))
15300263 1326 {
e328100e 1327 X6502_Run(6);
1328 Fixit2();
1329 X6502_Run(4);
1330 GameHBIRQHook();
1331 X6502_Run(85-10-16);
c62d2810 1332 }
1333 else
1334 {
e328100e 1335 X6502_Run(6); // Tried 65, caused problems with Slalom(maybe others)
1336 Fixit2();
1337 X6502_Run(85-6-16);
c62d2810 1338 }
e328100e 1339
1340 if(SpriteON)
1341 RefreshSprites();
1342 if(GameHBIRQHook2 && (ScreenON || SpriteON))
1343 GameHBIRQHook2();
1344 scanline++;
1345 if (scanline<240)
1346 ResetRL(XBuf+scanline*320+32);
1347 X6502_Run(16);
c62d2810 1348}
c62d2810 1349
e328100e 1350
6244011f 1351static void EmLoop(void)
c62d2810 1352{
1353 for(;;)
1354 {
ea80a45b 1355 int x;
92e249b1 1356 uint32 scanlines_per_frame = PAL ? 312 : 262;
4fdfab07 1357 UpdateInput();
92764e62 1358 FCEU_ApplyPeriodicCheats();
4fdfab07 1359
1360 // FCEUPPU_Loop:
1361 if(ppudead) /* Needed for Knight Rider, possibly others. */
1362 {
6587f346 1363 //memset(XBuf, 0, 320*240);
a384bf44 1364 //X6502_Run(scanlines_per_frame*(256+85));
1365 int lines;
1366 for (lines=scanlines_per_frame;lines;lines--)
1367 X6502_Run(256+85);
4fdfab07 1368 ppudead--;
1369 goto update;
1370 }
ea80a45b 1371
c62d2810 1372 X6502_Run(256+85);
1373
1374 PPU[2]|=0x80;
1375 PPU[3]=PPUSPL=0; /* Not sure if this is correct. According
1376 to Matt Conte and my own tests, it is. Timing is probably
1377 off, though. NOTE: Not having this here
1378 breaks a Super Donkey Kong game. */
1379
1380 X6502_Run(12); /* I need to figure out the true nature and length
15300263 1381 of this delay.
c62d2810 1382 */
1383 if(FCEUGameInfo.type==GIT_NSF)
ea80a45b 1384 DoNSFFrame();
c62d2810 1385 else if(VBlankON)
1386 TriggerNMI();
1387
655f8df0 1388 // Note: this is needed for asm core
1389 // Warning: using 'scanline' var here breaks Castlevania III
1390 {
1391 int lines;
1392 X6502_Run(256+85-12);
1393 for (lines=scanlines_per_frame-242-1;lines;lines--)
1394 X6502_Run(256+85);
1395 }
1396 // X6502_Run((scanlines_per_frame-242)*(256+85)-12);
c62d2810 1397 PPU_status&=0x1f;
c62d2810 1398 X6502_Run(256);
ea80a45b 1399
c62d2810 1400 {
c62d2810 1401 if(ScreenON || SpriteON)
d97315ac 1402 {
c62d2810 1403 if(GameHBIRQHook)
1404 GameHBIRQHook();
ea80a45b 1405 if(PPU_hook)
1406 for(x=0;x<42;x++) {PPU_hook(0x2000); PPU_hook(0);} // ugh
d97315ac 1407 if(GameHBIRQHook2)
1408 GameHBIRQHook2();
1409 }
c62d2810 1410
4fdfab07 1411 X6502_Run(85-16);
c62d2810 1412
4fdfab07 1413 if(ScreenON || SpriteON)
1414 {
1415 RefreshAddr=TempAddr;
1416 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
1417 }
e328100e 1418 spork=0;
1419 ResetRL(XBuf+32);
4fdfab07 1420
1421 X6502_Run(16-kook);
1422 kook ^= 1;
c62d2810 1423 }
4fdfab07 1424
c62d2810 1425 if(FCEUGameInfo.type==GIT_NSF)
937bf65b 1426 {
6587f346 1427 // run scanlines for asm core to fuction
13624c8f 1428 for(scanline=0;scanline<240;scanline++)
1429 X6502_Run(256+85);
937bf65b 1430 }
c62d2810 1431 else
1432 {
1433 int x,max,maxref;
1434
1435 deemp=PPU[1]>>5;
4a1bf31b 1436 SetRefreshLine();
4fdfab07 1437 for(scanline=0;scanline<240;) // scanline is incremented in DoLine. Evil. :/
c62d2810 1438 {
1439 deempcnt[deemp]++;
e328100e 1440 DoLine();
c62d2810 1441 }
ea80a45b 1442 if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
c62d2810 1443 for(x=1,max=0,maxref=0;x<7;x++)
1444 {
1445 if(deempcnt[x]>max)
1446 {
1447 max=deempcnt[x];
1448 maxref=x;
1449 }
1450 deempcnt[x]=0;
1451 }
c62d2810 1452 SetNESDeemph(maxref,0);
1453 }
1454
4fdfab07 1455update:
47d0839e 1456 if(Exit)
1457 {
1458 //CloseGame();
1459 break;
1460 }
1461
c62d2810 1462 {
1463 int ssize;
1464
1465 ssize=FlushEmulateSound();
1466
4fdfab07 1467 timestampbase += timestamp;
1468 timestamp = 0;
1469
c62d2810 1470 #ifdef FRAMESKIP
1471 if(FSkip)
1472 {
1473 FCEU_PutImageDummy();
1474 FSkip--;
5232c20c 1475 FCEUD_Update(0,WaveFinalMono,ssize);
c62d2810 1476 }
1477 else
1478 #endif
1479 {
1480 FCEU_PutImage();
5232c20c 1481 FCEUD_Update(XBuf+8,WaveFinalMono,ssize);
c62d2810 1482 }
c62d2810 1483 }
1484
4fdfab07 1485 } // for
c62d2810 1486}
1487
c62d2810 1488void FCEUI_CloseGame(void)
1489{
1490 Exit=1;
1491}
1492
1493static void ResetPPU(void)
1494{
1495 VRAMBuffer=PPU[0]=PPU[1]=PPU[2]=PPU[3]=0;
1496 PPUSPL=0;
1497 PPUGenLatch=0;
1498 RefreshAddr=TempAddr=0;
1499 vtoggle = 0;
4fdfab07 1500 ppudead = 2;
1501 kook = 0;
c62d2810 1502}
1503
1504static void PowerPPU(void)
1505{
1506 memset(NTARAM,0x00,0x800);
1507 memset(PALRAM,0x00,0x20);
1508 memset(SPRAM,0x00,0x100);
1509 ResetPPU();
1510}
1511
6244011f 1512void ResetNES081(void)
c62d2810 1513{
92764e62 1514 if(!GameLoaded) return;
c4980f9e 1515 GameInterface(GI_RESETM2, 0);
c62d2810 1516 ResetSound();
1517 ResetPPU();
1518 X6502_Reset();
1519}
1520
cd9a6b51 1521#ifndef DEBUG_ASM_6502
b8da43fb 1522static void FCEU_MemoryRand(uint8 *ptr, uint32 size)
1523{
1524 int x=0;
1525 while(size)
1526 {
1527 *ptr=(x&4)?0xFF:0x00;
1528 x++;
1529 size--;
1530 ptr++;
1531 }
1532}
cd9a6b51 1533#endif
b8da43fb 1534
642070a9 1535void PowerNES(void)
c62d2810 1536{
1537 if(!GameLoaded) return;
1538
1539 FCEU_CheatResetRAM();
1540 FCEU_CheatAddRAM(2,0,RAM);
1541
1542 GeniePower();
1543
b8da43fb 1544#ifndef DEBUG_ASM_6502
1545 FCEU_MemoryRand(RAM,0x800);
1546#else
c62d2810 1547 memset(RAM,0x00,0x800);
282becab 1548 memset(nes_internal_ram,0x00,0x800);
b8da43fb 1549#endif
c62d2810 1550 ResetMapping();
c62d2810 1551 PowerSound();
1552 PowerPPU();
642070a9 1553
1554 if (use098code)
1555 FCEUPPU_Power();
1556
1557 /* Have the external game hardware "powered" after the internal NES stuff.
1558 Needed for the NSF code and VS System code.
1559 */
0bb3fe12 1560 GameInterface(GI_POWER, 0);
15d2d258 1561 if(FCEUGameInfo.type==GIT_VSUNI)
1562 FCEU_VSUniPower();
b8da43fb 1563#ifdef ASM_6502
1564 if (geniestage)
1565 GenieSetPages(0);
1566#endif
15d2d258 1567 timestampbase=0;
c62d2810 1568 X6502_Power();
15d2d258 1569 FCEU_PowerCheats();
c62d2810 1570}
1571
890e37ba 1572
1573/* savestate stuff */
1574uint16 TempAddrT,RefreshAddrT;
1575
1576SFORMAT FCEUPPU_STATEINFO[]={
1577 { NTARAM, 0x800, "NTAR"},
1578 { PALRAM, 0x20, "PRAM"},
1579 { SPRAM, 0x100, "SPRA"},
1580 { PPU, 0x4, "PPUR"},
1581 { &XOffset, 1, "XOFF"},
1582 { &vtoggle, 1, "VTOG"},
1583 { &RefreshAddrT, 2|RLSB, "RADD"},
1584 { &TempAddrT, 2|RLSB, "TADD"},
1585 { &VRAMBuffer, 1, "VBUF"},
1586 { &PPUGenLatch, 1, "PGEN"},
1587 // from 0.98.15
1588 { &kook, 1, "KOOK"},
1589 { &ppudead, 1, "DEAD"},
1590 { &PPUSPL, 1, "PSPL"},
1591 { 0 }
1592 };
1593
1594
ARM optimized FCE Ultra port