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split generic ARM code from gp2x
[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
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
634 if(scanline < FSettings.FirstSLine || scanline > FSettings.LastSLine)
e328100e 635 {
636 if(PPU_hook)
637 PRefreshLine();
c0623dcf 638 y=(int)SPRAM[0] + 1;
639 if(scanline==y && SpriteON) PPU_status|=0x40;
e328100e 640 }
641 else
642 {
643 if(ScreenON)
c62d2810 644 {
21afaa36 645 BGRender(target);
c62d2810 646 }
e328100e 647 else
c62d2810 648 {
e328100e 649 tem=Pal[0]|0x40;
650 tem|=tem << 8;
651 tem|=tem << 16;
652 FCEU_dwmemset(target,tem,256);
c62d2810 653 }
15300263 654 }
e328100e 655
c62d2810 656 if(InputScanlineHook)
e328100e 657 InputScanlineHook(target,spork?sprlinebuf:0,linestartts,256);
658}
659
660
661static void LineUpdateEnd(uint8 *target)
662{
c8c88d89 663#ifdef __arm__
e328100e 664 if(ScreenON || SpriteON) // Yes, very el-cheapo.
665 {
666 if(PPU[1]&0x01)
667 block_and(target, 256, 0x30);
668 }
669 if((PPU[1]>>5)==0x7)
670 block_or(target, 256, 0xc0);
671 else if(PPU[1]&0xE0)
672 block_or(target, 256, 0x40);
673 else
674 block_andor(target, 256, 0x3f, 0x80);
675#else
676 int x;
677
678 if(ScreenON || SpriteON) // Yes, very el-cheapo.
679 {
680 if(PPU[1]&0x01)
681 {
682 for(x=63;x>=0;x--)
683 *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])&0x30303030;
684 }
685 }
686 if((PPU[1]>>5)==0x7)
687 {
688 for(x=63;x>=0;x--)
689 *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0xc0c0c0c0;
690 }
691 else if(PPU[1]&0xE0)
692 for(x=63;x>=0;x--)
693 *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])|0x40404040;
694 else
695 for(x=63;x>=0;x--)
696 *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0x80808080;
697#endif
698
699 // black borders
700 ((uint32 *)target)[-2]=((uint32 *)target)[-1]=0;
701 ((uint32 *)target)[64]=((uint32 *)target)[65]=0;
c62d2810 702}
703
704#define PAL(c) ((c)+cc)
705
706
707static void PRefreshLine(void)
708{
078eb4c0 709 uint32 vofs;
710 int X1;
711 vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7);
712 void (*PPU_hook_)(uint32 A) = PPU_hook;
c62d2810 713
c62d2810 714
078eb4c0 715 for(X1=33;X1;X1--)
716 {
717 uint32 zz2;
718 uint32 vadr;
719
720 zz2=(RefreshAddr>>10)&3;
721 PPU_hook_(0x2000|(RefreshAddr&0xFFF));
722
723 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
724
725 PPU_hook_(vadr);
c62d2810 726
c62d2810 727 if((RefreshAddr&0x1f)==0x1f)
728 RefreshAddr^=0x41F;
729 else
730 RefreshAddr++;
078eb4c0 731 }
c62d2810 732}
733
4a1bf31b 734/* This high-level graphics MMC5 emulation code was written
735 for MMC5 carts in "CL" mode. It's probably not totally
736 correct for carts in "SL" mode.
737 */
738static void RefreshLine_MMC5Hack1(uint8 *P, uint32 vofs)
c62d2810 739{
4a1bf31b 740 int8 tochange, X1;
c62d2810 741
742 tochange=MMC5HackSPMode&0x1F;
743
744 for(X1=33;X1;X1--,P+=8)
745 {
746 uint8 *C;
5232c20c 747 uint8 cc,zz,zz2;
c62d2810 748 uint32 vadr;
749
15300263 750 if((tochange<=0 && MMC5HackSPMode&0x40) ||
c62d2810 751 (tochange>0 && !(MMC5HackSPMode&0x40)))
752 {
753 uint8 xs,ys;
754
15300263 755 xs=33-X1;
c62d2810 756 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
757 if(ys>=0x1E) ys-=0x1E;
758 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
759
760 C = MMC5HackVROMPTR+vadr;
761 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
762
763 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
764 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
765 }
766 else
767 {
768 zz=RefreshAddr&0x1F;
769 zz2=(RefreshAddr>>10)&3;
770 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
771 C = MMC5BGVRAMADR(vadr);
772 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
773 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
774 }
775 #include "fceline.h"
776
777 if((RefreshAddr&0x1f)==0x1f)
778 RefreshAddr^=0x41F;
779 else
780 RefreshAddr++;
781 tochange--;
782 }
4a1bf31b 783}
784
785static void RefreshLine_MMC5Hack2(uint8 *P, uint32 vofs)
786{
787 int8 tochange, X1;
c62d2810 788
789 tochange=MMC5HackSPMode&0x1F;
790
791 for(X1=33;X1;X1--,P+=8)
792 {
793 uint8 *C;
5232c20c 794 uint8 cc;
795 uint8 zz2;
c62d2810 796 uint32 vadr;
797
798 if((tochange<=0 && MMC5HackSPMode&0x40) ||
799 (tochange>0 && !(MMC5HackSPMode&0x40)))
800 {
801 uint8 xs,ys;
802
15300263 803 xs=33-X1;
c62d2810 804 ys=((scanline>>3)+MMC5HackSPScroll)&0x1F;
805 if(ys>=0x1E) ys-=0x1E;
806 vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7);
807
808 C = MMC5HackVROMPTR+vadr;
809 C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12);
810
811 cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)];
812 cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2;
813 }
814 else
815 {
816 C=MMC5HackVROMPTR;
817 zz2=(RefreshAddr>>10)&3;
818 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
819 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
820 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
821 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
822 cc = vadr;
823 }
824 #include "fceline.h"
825 if((RefreshAddr&0x1f)==0x1f)
826 RefreshAddr^=0x41F;
827 else
828 RefreshAddr++;
829 tochange--;
830 }
4a1bf31b 831}
832
833static void RefreshLine_MMC5Hack3(uint8 *P, uint32 vofs)
834{
835 int8 X1;
c62d2810 836
c62d2810 837 for(X1=33;X1;X1--,P+=8)
838 {
15300263 839 uint8 *C;
5232c20c 840 uint8 cc;
841 uint8 zz2;
15300263 842 uint32 vadr;
c62d2810 843
844 C=MMC5HackVROMPTR;
845 zz2=(RefreshAddr>>10)&3;
846 vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs;
15300263 847 C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f &
c62d2810 848 MMC5HackVROMMask) << 12) + (vadr & 0xfff);
849 vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4;
850 cc = vadr;
851
852 #include "fceline.h"
853 if((RefreshAddr&0x1f)==0x1f)
854 RefreshAddr^=0x41F;
855 else
856 RefreshAddr++;
857 }
4a1bf31b 858}
859
860static void RefreshLine_MMC5Hack4(uint8 *P, uint32 vofs)
861{
862 int8 X1;
863
c62d2810 864 for(X1=33;X1;X1--,P+=8)
865 {
866 uint8 *C;
5232c20c 867 uint8 cc,zz,zz2;
c62d2810 868 uint32 vadr;
869
870 zz=RefreshAddr&0x1F;
871 zz2=(RefreshAddr>>10)&3;
872 vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs;
873 C = MMC5BGVRAMADR(vadr);
874 cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)];
875 cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2;
876
877 #include "fceline.h"
15300263 878
c62d2810 879 if((RefreshAddr&0x1f)==0x1f)
880 RefreshAddr^=0x41F;
881 else
882 RefreshAddr++;
15300263 883 }
4a1bf31b 884}
885
886static void RefreshLine_PPU_hook(uint8 *P, uint32 vofs)
887{
888 int8 X1;
078eb4c0 889 void (*PPU_hook_)(uint32 A) = PPU_hook;
890 uint32 rfraddr = RefreshAddr;
891 uint8 *page = vnapage[(rfraddr>>10)&3];
c62d2810 892
c62d2810 893 for(X1=33;X1;X1--,P+=8)
894 {
15300263 895 uint8 *C;
078eb4c0 896 uint8 cc,zz;
15300263 897 uint32 vadr;
c62d2810 898
078eb4c0 899 zz=rfraddr&0x1F;
900 PPU_hook_(0x2000|(rfraddr&0xFFF));
901 cc=page[0x3c0+(zz>>2)+((rfraddr&0x380)>>4)];
902 cc=((cc >> ((zz&2) + ((rfraddr&0x40)>>4))) &3) <<2;
903 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
c62d2810 904 C = VRAMADR(vadr);
905
906 #include "fceline.h"
907
078eb4c0 908 PPU_hook_(vadr);
c62d2810 909
078eb4c0 910 if((rfraddr&0x1f)==0x1f) {
911 rfraddr^=0x41F;
912 page = vnapage[(rfraddr>>10)&3];
913 } else
914 rfraddr++;
c62d2810 915 }
078eb4c0 916 RefreshAddr = rfraddr;
4a1bf31b 917}
918
9115e7d2 919static void RefreshLine_normal(uint8 *P, uint32 vofs) // vofs is 0x107 max
4a1bf31b 920{
921 int8 X1;
9115e7d2 922 uint32 rfraddr = RefreshAddr;
923 uint8 *page = vnapage[(rfraddr>>10)&3];
924 uint32 cc2=0;
4a1bf31b 925
9115e7d2 926 if ((rfraddr&0xc)!=0)
927 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
928
929 for (X1=33;X1;X1--,P+=8)
c62d2810 930 {
9115e7d2 931 uint8 cc,*C;
c62d2810 932 uint32 vadr;
933
9115e7d2 934 vadr=(page[rfraddr&0x3ff]<<4)+vofs;
c62d2810 935 C = VRAMADR(vadr);
9115e7d2 936 if ((rfraddr&0xc)==0)
937 cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0);
938 cc=((cc2 >> ((rfraddr&2) + ((rfraddr&0x40)>>4) + ((rfraddr&0xc)<<1))) & 3) << 2;
4a1bf31b 939
9115e7d2 940 #include "fceline.h"
15300263 941
9115e7d2 942 if((rfraddr&0x1f)==0x1f) {
943 rfraddr^=0x41F;
944 page = vnapage[(rfraddr>>10)&3];
945 } else
946 rfraddr++;
c62d2810 947 }
9115e7d2 948 RefreshAddr = rfraddr;
4a1bf31b 949}
c62d2810 950
4a1bf31b 951static void SetRefreshLine(void)
952{
953 if(MMC5Hack && geniestage!=1)
954 {
955 if(MMC5HackCHRMode==0 && (MMC5HackSPMode&0x80))
956 {
957 if (RefreshLine != RefreshLine_MMC5Hack1) printf("set refr RefreshLine_MMC5Hack1\n");
958 RefreshLine = RefreshLine_MMC5Hack1;
959 }
960 else if(MMC5HackCHRMode==1 && (MMC5HackSPMode&0x80))
961 {
962 if (RefreshLine != RefreshLine_MMC5Hack2) printf("set refr RefreshLine_MMC5Hack2\n");
963 RefreshLine = RefreshLine_MMC5Hack2;
964 }
965 else if(MMC5HackCHRMode==1)
966 {
967 if (RefreshLine != RefreshLine_MMC5Hack3) printf("set refr RefreshLine_MMC5Hack3\n");
968 RefreshLine = RefreshLine_MMC5Hack3;
969 }
970 else
971 {
972 if (RefreshLine != RefreshLine_MMC5Hack4) printf("set refr RefreshLine_MMC5Hack4\n");
973 RefreshLine = RefreshLine_MMC5Hack4;
974 }
975 } // End if(MMC5Hack)
976 else if(PPU_hook)
977 {
978 if (RefreshLine != RefreshLine_PPU_hook) printf("set refr RefreshLine_PPU_hook\n");
979 RefreshLine = RefreshLine_PPU_hook;
980 }
981 else
982 {
983 if (RefreshLine != RefreshLine_normal) printf("set refr RefreshLine_normal\n");
984 RefreshLine = RefreshLine_normal;
985 }
c62d2810 986}
987
4fdfab07 988static INLINE
937bf65b 989void Fixit2(void)
c62d2810 990{
991 if(ScreenON || SpriteON)
992 {
993 uint32 rad=RefreshAddr;
994 rad&=0xFBE0;
995 rad|=TempAddr&0x041f;
996 RefreshAddr=rad;
997 //PPU_hook(RefreshAddr,-1);
998 }
999}
1000
4fdfab07 1001static INLINE
937bf65b 1002void Fixit1(void)
c62d2810 1003{
1004 if(ScreenON || SpriteON)
1005 {
1006 uint32 rad=RefreshAddr;
1007
1008 if((rad&0x7000)==0x7000)
1009 {
1010 rad^=0x7000;
1011 if((rad&0x3E0)==0x3A0)
1012 {
1013 rad^=0x3A0;
1014 rad^=0x800;
1015 }
1016 else
1017 {
1018 if((rad&0x3E0)==0x3e0)
1019 rad^=0x3e0;
1020 else rad+=0x20;
1021 }
1022 }
1023 else
1024 rad+=0x1000;
1025 RefreshAddr=rad;
1026 //PPU_hook(RefreshAddr,-1);
1027 }
1028}
1029
937bf65b 1030
5232c20c 1031// ============================//
1032// end of new code
1033// ===========================//
c62d2810 1034
1035void ResetMapping(void)
1036{
1037 int x;
1038
1039 SetReadHandler(0x0000,0xFFFF,ANull);
1040 SetWriteHandler(0x0000,0xFFFF,BNull);
1041
1042 SetReadHandler(0,0x7FF,ARAML);
1043 SetWriteHandler(0,0x7FF,BRAML);
1044
1045 SetReadHandler(0x800,0x1FFF,ARAMH); /* Part of a little */
1046 SetWriteHandler(0x800,0x1FFF,BRAMH); /* hack for a small speed boost. */
1047
1048 for(x=0x2000;x<0x4000;x+=8)
1049 {
1050 ARead[x]=A200x;
1051 BWrite[x]=B2000;
1052 ARead[x+1]=A200x;
1053 BWrite[x+1]=B2001;
1054 ARead[x+2]=A2002;
1055 BWrite[x+2]=B2002;
1056 ARead[x+3]=A200x;
1057 BWrite[x+3]=B2003;
1058 ARead[x+4]=A200x;
1059 BWrite[x+4]=B2004;
1060 ARead[x+5]=A200x;
1061 BWrite[x+5]=B2005;
1062 ARead[x+6]=A200x;
1063 BWrite[x+6]=B2006;
1064 ARead[x+7]=A2007;
1065 BWrite[x+7]=B2007;
1066 }
1067
1068 BWrite[0x4014]=B4014;
1069 SetNESSoundMap();
1070 InitializeInput();
1071}
1072
1073int GameLoaded=0;
1074void CloseGame(void)
1075{
c4980f9e 1076 FCEUI_StopMovie();
c62d2810 1077 if(GameLoaded)
1078 {
1079 if(FCEUGameInfo.type!=GIT_NSF)
92764e62 1080 FCEU_FlushGameCheats(0,0);
c62d2810 1081 #ifdef NETWORK
1082 if(FSettings.NetworkPlay) KillNetplay();
15300263 1083 #endif
c4980f9e 1084 GameInterface(GI_CLOSE, 0);
c62d2810 1085 CloseGenie();
1086 GameLoaded=0;
1087 }
1088}
1089
1090void ResetGameLoaded(void)
1091{
1092 if(GameLoaded) CloseGame();
1093 GameStateRestore=0;
1094 PPU_hook=0;
d97315ac 1095 GameHBIRQHook=GameHBIRQHook2=0;
c62d2810 1096 GameExpSound.Fill=0;
1097 GameExpSound.RChange=0;
1098 if(GameExpSound.Kill)
1099 GameExpSound.Kill();
1100 GameExpSound.Kill=0;
1101 MapIRQHook=0;
1102 MMC5Hack=0;
1103 PAL&=1;
1104 pale=0;
1105
1106 FCEUGameInfo.name=0;
1107 FCEUGameInfo.type=GIT_CART;
1108 FCEUGameInfo.vidsys=GIV_USER;
1109 FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=-1;
1110 FCEUGameInfo.inputfc=-1;
6244011f 1111
1112 FCEUGameInfo.soundchan=0;
1113 FCEUGameInfo.soundrate=0;
1114 FCEUGameInfo.cspecial=0;
c62d2810 1115}
1116
5a2aa426 1117char lastLoadedGameName [2048];
989672f4 1118int LoadGameLastError = 0;
d97315ac 1119int UNIFLoad(const char *name, int fp);
1120int iNESLoad(const char *name, int fp);
1121int FDSLoad(const char *name, int fp);
1122int NSFLoad(int fp);
5a2aa426 1123
c62d2810 1124FCEUGI *FCEUI_LoadGame(char *name)
1125{
5a2aa426 1126 char name2[512];
892b1f6c 1127 int have_movie = 0, have_ips = 0;
c62d2810 1128 int fp;
1129
b2b95d2e 1130 //Exit=1;
989672f4 1131 LoadGameLastError = 0;
c62d2810 1132 ResetGameLoaded();
1133
5a2aa426 1134 strncpy(name2, name, sizeof(name2));
1135 name2[sizeof(name2)-1] = 0;
1136
1137 fp=FCEU_fopen(name2,"rb");
c62d2810 1138 if(!fp)
1139 {
1140 FCEU_PrintError("Error opening \"%s\"!",name);
989672f4 1141 LoadGameLastError = 1;
c62d2810 1142 return 0;
1143 }
1144
5a2aa426 1145 {
1146 char *p = name2 + strlen(name2) - 4;
892b1f6c 1147 if (strcasecmp(p, ".fcm") == 0) printf("movie detected\n"), have_movie = 1;
1148 if (strcasecmp(p, ".ips") == 0) printf("ips detected\n"), have_ips = 1;
1149 if (have_movie || have_ips)
5a2aa426 1150 {
1151 // movie detected
5a2aa426 1152 FCEU_fclose(fp);
1153 *p = 0;
1154 fp=FCEU_fopen(name2,"rb");
892b1f6c 1155 if (!fp && p - name2 > 2)
1156 {
1157 for (p--; p > name2 && *p != '.'; p--);
1158 *p = 0;
1159 fp=FCEU_fopen(name2,"rb");
1160 }
5a2aa426 1161 if (!fp) {
892b1f6c 1162 printf("no ROM for ips/movie\n");
989672f4 1163 LoadGameLastError = 2;
5a2aa426 1164 return 0;
1165 }
5a2aa426 1166 }
1167 }
1168
892b1f6c 1169 // do IPS patch
1170 if (have_ips)
1171 {
1172 FCEU_fclose(fp);
1173 FILE *ips = fopen(name, "rb");
1174 if (!ips) return 0;
1175 fp=FCEU_fopen_forcemem(name2);
1176 if (!fp) { fclose(ips); return 0; }
1177 ApplyIPS(ips, fp); // closes ips
1178 }
1179
5a2aa426 1180 GetFileBase(name2);
1181 if(iNESLoad(name2,fp))
c62d2810 1182 goto endlseq;
1183 if(NSFLoad(fp))
1184 goto endlseq;
5a2aa426 1185 if(FDSLoad(name2,fp))
c62d2810 1186 goto endlseq;
5a2aa426 1187 if(UNIFLoad(name2,fp))
c62d2810 1188 goto endlseq;
1189
1190 FCEU_PrintError("An error occurred while loading the file.");
1191 FCEU_fclose(fp);
989672f4 1192 // format handlers may set LoadGameLastError themselves.
1193 if (LoadGameLastError == 0) LoadGameLastError = 3;
c62d2810 1194 return 0;
1195
1196 endlseq:
1197 FCEU_fclose(fp);
15300263 1198 GameLoaded=1;
c62d2810 1199
1200 FCEU_ResetVidSys();
1201 if(FCEUGameInfo.type!=GIT_NSF)
1202 if(FSettings.GameGenie)
1203 OpenGenie();
1204
1205 PowerNES();
1206 #ifdef NETWORK
1207 if(FSettings.NetworkPlay) InitNetplay();
1208 #endif
1209 SaveStateRefresh();
1210 if(FCEUGameInfo.type!=GIT_NSF)
1211 {
92764e62 1212 FCEU_LoadGamePalette();
1213 FCEU_LoadGameCheats(0);
c62d2810 1214 }
15300263 1215
c62d2810 1216 FCEU_ResetPalette();
1217 Exit=0;
5a2aa426 1218
1219 if (have_movie)
1220 FCEUI_LoadMovie(name, 1);
989672f4 1221
1222 strcpy(lastLoadedGameName, name2);
1223
c62d2810 1224 return(&FCEUGameInfo);
1225}
1226
1227
1228void FCEU_ResetVidSys(void)
1229{
1230 int w;
1231
1232 if(FCEUGameInfo.vidsys==GIV_NTSC)
1233 w=0;
1234 else if(FCEUGameInfo.vidsys==GIV_PAL)
1235 w=1;
1236 else
1237 w=FSettings.PAL;
1238
1239 if(w)
1240 {
1241 PAL=1;
c62d2810 1242 FSettings.FirstSLine=FSettings.UsrFirstSLine[1];
1243 FSettings.LastSLine=FSettings.UsrLastSLine[1];
1244 }
1245 else
1246 {
1247 PAL=0;
c62d2810 1248 FSettings.FirstSLine=FSettings.UsrFirstSLine[0];
1249 FSettings.LastSLine=FSettings.UsrLastSLine[0];
1250 }
0b65fdb3 1251 printf("ResetVidSys: PAL = %i\n", PAL);
c62d2810 1252 SetSoundVariables();
1253}
1254
1255int FCEUI_Initialize(void)
1256{
1257 if(!InitVirtualVideo())
1258 return 0;
1259 memset(&FSettings,0,sizeof(FSettings));
1260 FSettings.UsrFirstSLine[0]=8;
1261 FSettings.UsrFirstSLine[1]=0;
1262 FSettings.UsrLastSLine[0]=FSettings.UsrLastSLine[1]=239;
92764e62 1263 FSettings.SoundVolume=100;
6244011f 1264
1265 FCEUI_Initialize098();
1266 FCEUI_SetEmuMode(0);
1267
c62d2810 1268 return 1;
1269}
1270
6244011f 1271void FCEUI_Kill(void)
1272{
1273 FCEU_KillGenie();
1274}
1275
1276static void EmLoop(void);
1277
a384bf44 1278int use098code = 0;
6244011f 1279void (*ResetNES)(void) = 0;
6244011f 1280void (*FCEUI_Emulate)(void) = 0;
1281
1282void FCEUI_SetEmuMode(int is_new)
1283{
a384bf44 1284 use098code = is_new;
6244011f 1285 if (is_new)
1286 {
1287 ResetNES=ResetNES098;
6244011f 1288 FCEUI_Emulate=FCEUI_Emulate098;
1289 }
1290 else
1291 {
1292 ResetNES=ResetNES081;
6244011f 1293 FCEUI_Emulate=EmLoop;
1294 }
1295}
1296
ea80a45b 1297void MMC5_hb(int); /* Ugh ugh ugh. */
e328100e 1298static void DoLine(void)
c62d2810 1299{
e328100e 1300 uint8 *target=XBuf+scanline*320+32;
1301
1302 LineUpdate(target);
c62d2810 1303
ea80a45b 1304 if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
1305
e328100e 1306 X6502_Run(256);
1307
f12b1f31 1308 // check: Battletoads & Double Dragon, Addams Family
1309 // sky glitches in SMB1 if done wrong
e328100e 1310 FakedLineUpdate();
1311
1312#ifdef FRAMESKIP
1313 if(!FSkip)
1314#endif
21afaa36 1315 if(scanline>=FSettings.FirstSLine && scanline<=FSettings.LastSLine)
1316 {
1317 if(SpriteON && spork)
1318 CopySprites(target);
e328100e 1319
21afaa36 1320 LineUpdateEnd(target);
1321 }
e328100e 1322 sphitx=0x100;
1323
1324 if(ScreenON || SpriteON)
1325 FetchSpriteData();
1326
1327 // DoHBlank();
1328 if(GameHBIRQHook && (ScreenON || SpriteON) && ((PPU[0]&0x38)!=0x18))
15300263 1329 {
e328100e 1330 X6502_Run(6);
1331 Fixit2();
1332 X6502_Run(4);
1333 GameHBIRQHook();
1334 X6502_Run(85-10-16);
c62d2810 1335 }
1336 else
1337 {
e328100e 1338 X6502_Run(6); // Tried 65, caused problems with Slalom(maybe others)
1339 Fixit2();
1340 X6502_Run(85-6-16);
c62d2810 1341 }
e328100e 1342
1343 if(SpriteON)
1344 RefreshSprites();
1345 if(GameHBIRQHook2 && (ScreenON || SpriteON))
1346 GameHBIRQHook2();
1347 scanline++;
1348 if (scanline<240)
1349 ResetRL(XBuf+scanline*320+32);
1350 X6502_Run(16);
c62d2810 1351}
c62d2810 1352
e328100e 1353
6244011f 1354static void EmLoop(void)
c62d2810 1355{
1356 for(;;)
1357 {
ea80a45b 1358 int x;
92e249b1 1359 uint32 scanlines_per_frame = PAL ? 312 : 262;
4fdfab07 1360 UpdateInput();
92764e62 1361 FCEU_ApplyPeriodicCheats();
4fdfab07 1362
1363 // FCEUPPU_Loop:
1364 if(ppudead) /* Needed for Knight Rider, possibly others. */
1365 {
6587f346 1366 //memset(XBuf, 0, 320*240);
a384bf44 1367 //X6502_Run(scanlines_per_frame*(256+85));
1368 int lines;
1369 for (lines=scanlines_per_frame;lines;lines--)
1370 X6502_Run(256+85);
4fdfab07 1371 ppudead--;
1372 goto update;
1373 }
ea80a45b 1374
c62d2810 1375 X6502_Run(256+85);
1376
1377 PPU[2]|=0x80;
1378 PPU[3]=PPUSPL=0; /* Not sure if this is correct. According
1379 to Matt Conte and my own tests, it is. Timing is probably
1380 off, though. NOTE: Not having this here
1381 breaks a Super Donkey Kong game. */
1382
1383 X6502_Run(12); /* I need to figure out the true nature and length
15300263 1384 of this delay.
c62d2810 1385 */
1386 if(FCEUGameInfo.type==GIT_NSF)
ea80a45b 1387 DoNSFFrame();
c62d2810 1388 else if(VBlankON)
1389 TriggerNMI();
1390
655f8df0 1391 // Note: this is needed for asm core
1392 // Warning: using 'scanline' var here breaks Castlevania III
1393 {
1394 int lines;
1395 X6502_Run(256+85-12);
1396 for (lines=scanlines_per_frame-242-1;lines;lines--)
1397 X6502_Run(256+85);
1398 }
1399 // X6502_Run((scanlines_per_frame-242)*(256+85)-12);
c62d2810 1400 PPU_status&=0x1f;
c62d2810 1401 X6502_Run(256);
ea80a45b 1402
c62d2810 1403 {
c62d2810 1404 if(ScreenON || SpriteON)
d97315ac 1405 {
c62d2810 1406 if(GameHBIRQHook)
1407 GameHBIRQHook();
ea80a45b 1408 if(PPU_hook)
1409 for(x=0;x<42;x++) {PPU_hook(0x2000); PPU_hook(0);} // ugh
d97315ac 1410 if(GameHBIRQHook2)
1411 GameHBIRQHook2();
1412 }
c62d2810 1413
4fdfab07 1414 X6502_Run(85-16);
c62d2810 1415
4fdfab07 1416 if(ScreenON || SpriteON)
1417 {
1418 RefreshAddr=TempAddr;
1419 if(PPU_hook) PPU_hook(RefreshAddr&0x3fff);
1420 }
e328100e 1421 spork=0;
1422 ResetRL(XBuf+32);
4fdfab07 1423
1424 X6502_Run(16-kook);
1425 kook ^= 1;
c62d2810 1426 }
4fdfab07 1427
c62d2810 1428 if(FCEUGameInfo.type==GIT_NSF)
937bf65b 1429 {
6587f346 1430 // run scanlines for asm core to fuction
13624c8f 1431 for(scanline=0;scanline<240;scanline++)
1432 X6502_Run(256+85);
937bf65b 1433 }
c62d2810 1434 else
1435 {
1436 int x,max,maxref;
1437
1438 deemp=PPU[1]>>5;
4a1bf31b 1439 SetRefreshLine();
4fdfab07 1440 for(scanline=0;scanline<240;) // scanline is incremented in DoLine. Evil. :/
c62d2810 1441 {
1442 deempcnt[deemp]++;
e328100e 1443 DoLine();
c62d2810 1444 }
ea80a45b 1445 if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline);
c62d2810 1446 for(x=1,max=0,maxref=0;x<7;x++)
1447 {
1448 if(deempcnt[x]>max)
1449 {
1450 max=deempcnt[x];
1451 maxref=x;
1452 }
1453 deempcnt[x]=0;
1454 }
c62d2810 1455 SetNESDeemph(maxref,0);
1456 }
1457
4fdfab07 1458update:
47d0839e 1459 if(Exit)
1460 {
1461 //CloseGame();
1462 break;
1463 }
1464
c62d2810 1465 {
1466 int ssize;
1467
1468 ssize=FlushEmulateSound();
1469
4fdfab07 1470 timestampbase += timestamp;
1471 timestamp = 0;
1472
c62d2810 1473 #ifdef FRAMESKIP
1474 if(FSkip)
1475 {
1476 FCEU_PutImageDummy();
1477 FSkip--;
5232c20c 1478 FCEUD_Update(0,WaveFinalMono,ssize);
c62d2810 1479 }
1480 else
1481 #endif
1482 {
1483 FCEU_PutImage();
5232c20c 1484 FCEUD_Update(XBuf+8,WaveFinalMono,ssize);
c62d2810 1485 }
c62d2810 1486 }
1487
4fdfab07 1488 } // for
c62d2810 1489}
1490
c62d2810 1491void FCEUI_CloseGame(void)
1492{
1493 Exit=1;
1494}
1495
1496static void ResetPPU(void)
1497{
1498 VRAMBuffer=PPU[0]=PPU[1]=PPU[2]=PPU[3]=0;
1499 PPUSPL=0;
1500 PPUGenLatch=0;
1501 RefreshAddr=TempAddr=0;
1502 vtoggle = 0;
4fdfab07 1503 ppudead = 2;
1504 kook = 0;
c62d2810 1505}
1506
1507static void PowerPPU(void)
1508{
1509 memset(NTARAM,0x00,0x800);
1510 memset(PALRAM,0x00,0x20);
1511 memset(SPRAM,0x00,0x100);
1512 ResetPPU();
1513}
1514
6244011f 1515void ResetNES081(void)
c62d2810 1516{
92764e62 1517 if(!GameLoaded) return;
c4980f9e 1518 GameInterface(GI_RESETM2, 0);
c62d2810 1519 ResetSound();
1520 ResetPPU();
1521 X6502_Reset();
1522}
1523
cd9a6b51 1524#ifndef DEBUG_ASM_6502
b8da43fb 1525static void FCEU_MemoryRand(uint8 *ptr, uint32 size)
1526{
1527 int x=0;
1528 while(size)
1529 {
1530 *ptr=(x&4)?0xFF:0x00;
1531 x++;
1532 size--;
1533 ptr++;
1534 }
1535}
cd9a6b51 1536#endif
b8da43fb 1537
642070a9 1538void PowerNES(void)
c62d2810 1539{
1540 if(!GameLoaded) return;
1541
1542 FCEU_CheatResetRAM();
1543 FCEU_CheatAddRAM(2,0,RAM);
1544
1545 GeniePower();
1546
b8da43fb 1547#ifndef DEBUG_ASM_6502
1548 FCEU_MemoryRand(RAM,0x800);
1549#else
c62d2810 1550 memset(RAM,0x00,0x800);
282becab 1551 memset(nes_internal_ram,0x00,0x800);
b8da43fb 1552#endif
c62d2810 1553 ResetMapping();
c62d2810 1554 PowerSound();
1555 PowerPPU();
642070a9 1556
1557 if (use098code)
1558 FCEUPPU_Power();
1559
1560 /* Have the external game hardware "powered" after the internal NES stuff.
1561 Needed for the NSF code and VS System code.
1562 */
0bb3fe12 1563 GameInterface(GI_POWER, 0);
15d2d258 1564 if(FCEUGameInfo.type==GIT_VSUNI)
1565 FCEU_VSUniPower();
b8da43fb 1566#ifdef ASM_6502
1567 if (geniestage)
1568 GenieSetPages(0);
1569#endif
15d2d258 1570 timestampbase=0;
c62d2810 1571 X6502_Power();
15d2d258 1572 FCEU_PowerCheats();
c62d2810 1573}
1574
890e37ba 1575
1576/* savestate stuff */
1577uint16 TempAddrT,RefreshAddrT;
1578
1579SFORMAT FCEUPPU_STATEINFO[]={
1580 { NTARAM, 0x800, "NTAR"},
1581 { PALRAM, 0x20, "PRAM"},
1582 { SPRAM, 0x100, "SPRA"},
1583 { PPU, 0x4, "PPUR"},
1584 { &XOffset, 1, "XOFF"},
1585 { &vtoggle, 1, "VTOG"},
1586 { &RefreshAddrT, 2|RLSB, "RADD"},
1587 { &TempAddrT, 2|RLSB, "TADD"},
1588 { &VRAMBuffer, 1, "VBUF"},
1589 { &PPUGenLatch, 1, "PGEN"},
1590 // from 0.98.15
1591 { &kook, 1, "KOOK"},
1592 { &ppudead, 1, "DEAD"},
1593 { &PPUSPL, 1, "PSPL"},
1594 { 0 }
1595 };
1596
1597
ARM optimized FCE Ultra port