c62d2810 |
1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
4 | * Copyright (C) 1998 BERO |
5 | * Copyright (C) 2002 Ben Parnell |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by |
9 | * the Free Software Foundation; either version 2 of the License, or |
10 | * (at your option) any later version. |
11 | * |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * GNU General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program; if not, write to the Free Software |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
20 | */ |
21 | |
22 | #include <string.h> |
23 | #include <stdio.h> |
24 | #include <stdlib.h> |
25 | |
26 | #include "types.h" |
27 | #include "x6502.h" |
28 | #include "fce.h" |
29 | #include "sound.h" |
30 | #include "svga.h" |
31 | #include "netplay.h" |
32 | #include "general.h" |
33 | #include "endian.h" |
34 | #include "version.h" |
35 | #include "memory.h" |
36 | |
37 | #include "cart.h" |
38 | #include "nsf.h" |
39 | #include "fds.h" |
40 | #include "ines.h" |
41 | #include "unif.h" |
42 | #include "cheat.h" |
43 | |
44 | #include "state.h" |
45 | #include "video.h" |
46 | #include "input.h" |
47 | #include "file.h" |
48 | #include "crc32.h" |
49 | |
50 | #define Pal (PALRAM) |
51 | |
52 | static void FetchSpriteData(void); |
53 | static void FASTAPASS(1) RefreshLine(uint8 *target); |
54 | static void PRefreshLine(void); |
55 | static void FASTAPASS(1) RefreshSprite(uint8 *target); |
56 | static void ResetPPU(void); |
57 | static void PowerPPU(void); |
58 | |
59 | uint64 timestampbase=0; |
60 | |
61 | int MMC5Hack; |
62 | uint32 MMC5HackVROMMask; |
63 | uint8 *MMC5HackExNTARAMPtr; |
64 | uint8 *MMC5HackVROMPTR; |
65 | uint8 MMC5HackCHRMode=0; |
66 | uint8 MMC5HackSPMode; |
67 | uint8 MMC5HackSPScroll; |
68 | uint8 MMC5HackSPPage; |
69 | |
70 | uint8 *MMC5SPRVPage[8]; |
71 | uint8 *MMC5BGVPage[8]; |
72 | |
73 | |
74 | uint8 VRAMBuffer,PPUGenLatch; |
75 | |
76 | uint8 *vnapage[4]; |
77 | uint8 PPUNTARAM; |
78 | uint8 PPUCHRRAM; |
79 | |
80 | /* Color deemphasis emulation. Joy... */ |
81 | static uint8 deemp=0; |
82 | static int deempcnt[8]; |
83 | |
84 | static int tosprite=256; |
85 | |
86 | FCEUGI FCEUGameInfo; |
87 | void (*GameInterface)(int h); |
88 | |
89 | void FP_FASTAPASS(1) (*PPU_hook)(uint32 A); |
90 | |
91 | void (*GameStateRestore)(int version); |
92 | void (*GameHBIRQHook)(void); |
93 | |
94 | readfunc ARead[0x10000]; |
95 | writefunc BWrite[0x10000]; |
96 | static readfunc *AReadG; |
97 | static writefunc *BWriteG; |
98 | static int RWWrap=0; |
99 | |
100 | DECLFW(BNull) |
101 | { |
102 | |
103 | } |
104 | |
105 | DECLFR(ANull) |
106 | { |
107 | return(X.DB); |
108 | } |
109 | |
110 | int AllocGenieRW(void) |
111 | { |
112 | if(!(AReadG=FCEU_malloc(0x8000*sizeof(readfunc)))) |
113 | return 0; |
114 | if(!(BWriteG=FCEU_malloc(0x8000*sizeof(writefunc)))) |
115 | return 0; |
116 | RWWrap=1; |
117 | return 1; |
118 | } |
119 | |
120 | void FlushGenieRW(void) |
121 | { |
122 | int32 x; |
123 | |
124 | if(RWWrap) |
125 | { |
126 | for(x=0;x<0x8000;x++) |
127 | { |
128 | ARead[x+0x8000]=AReadG[x]; |
129 | BWrite[x+0x8000]=BWriteG[x]; |
130 | } |
131 | free(AReadG); |
132 | free(BWriteG); |
133 | AReadG=0; |
134 | BWriteG=0; |
135 | RWWrap=0; |
136 | } |
137 | } |
138 | |
139 | readfunc FASTAPASS(1) GetReadHandler(int32 a) |
140 | { |
141 | if(a>=0x8000 && RWWrap) |
142 | return AReadG[a-0x8000]; |
143 | else |
144 | return ARead[a]; |
145 | } |
146 | |
147 | void FASTAPASS(3) SetReadHandler(int32 start, int32 end, readfunc func) |
148 | { |
149 | int32 x; |
150 | |
151 | if(!func) |
152 | func=ANull; |
153 | |
154 | if(RWWrap) |
155 | for(x=end;x>=start;x--) |
156 | { |
157 | if(x>=0x8000) |
158 | AReadG[x-0x8000]=func; |
159 | else |
160 | ARead[x]=func; |
161 | } |
162 | else |
163 | |
164 | for(x=end;x>=start;x--) |
165 | ARead[x]=func; |
166 | } |
167 | |
168 | writefunc FASTAPASS(1) GetWriteHandler(int32 a) |
169 | { |
170 | if(RWWrap && a>=0x8000) |
171 | return BWriteG[a-0x8000]; |
172 | else |
173 | return BWrite[a]; |
174 | } |
175 | |
176 | void FASTAPASS(3) SetWriteHandler(int32 start, int32 end, writefunc func) |
177 | { |
178 | int32 x; |
179 | |
180 | if(!func) |
181 | func=BNull; |
182 | |
183 | if(RWWrap) |
184 | for(x=end;x>=start;x--) |
185 | { |
186 | if(x>=0x8000) |
187 | BWriteG[x-0x8000]=func; |
188 | else |
189 | BWrite[x]=func; |
190 | } |
191 | else |
192 | for(x=end;x>=start;x--) |
193 | BWrite[x]=func; |
194 | } |
195 | |
196 | uint8 vtoggle=0; |
197 | uint8 XOffset=0; |
198 | |
199 | uint32 TempAddr,RefreshAddr; |
200 | |
201 | static int maxsprites=8; |
202 | |
203 | /* scanline is equal to the current visible scanline we're on. */ |
204 | |
205 | int scanline; |
206 | static uint32 scanlines_per_frame; |
207 | |
208 | uint8 PPU[4]; |
209 | uint8 PPUSPL; |
210 | |
211 | uint8 GameMemBlock[131072]; |
212 | uint8 NTARAM[0x800],PALRAM[0x20],SPRAM[0x100],SPRBUF[0x100]; |
213 | uint8 RAM[0x800]; |
214 | |
215 | uint8 PAL=0; |
216 | |
217 | #define MMC5SPRVRAMADR(V) &MMC5SPRVPage[(V)>>10][(V)] |
218 | #define MMC5BGVRAMADR(V) &MMC5BGVPage[(V)>>10][(V)] |
219 | #define VRAMADR(V) &VPage[(V)>>10][(V)] |
220 | |
221 | static DECLFW(BRAML) |
222 | { |
223 | RAM[A]=V; |
224 | } |
225 | |
226 | static DECLFW(BRAMH) |
227 | { |
228 | RAM[A&0x7FF]=V; |
229 | } |
230 | |
231 | static DECLFR(ARAML) |
232 | { |
233 | return RAM[A]; |
234 | } |
235 | |
236 | static DECLFR(ARAMH) |
237 | { |
238 | return RAM[A&0x7FF]; |
239 | } |
240 | |
241 | |
242 | static DECLFR(A2002) |
243 | { |
244 | uint8 ret; |
245 | ret = PPU_status; |
246 | vtoggle=0; |
247 | PPU_status&=0x7F; |
248 | return ret|(PPUGenLatch&0x1F); |
249 | } |
250 | |
251 | static DECLFR(A200x) |
252 | { |
253 | return PPUGenLatch; |
254 | } |
255 | |
256 | static DECLFR(A2007) |
257 | { |
258 | uint8 ret; |
259 | uint32 tmp=RefreshAddr&0x3FFF; |
260 | |
261 | PPUGenLatch=ret=VRAMBuffer; |
262 | if(PPU_hook) PPU_hook(tmp); |
263 | if(tmp<0x2000) |
264 | { |
265 | VRAMBuffer=VPage[tmp>>10][tmp]; |
266 | } |
267 | else |
268 | { |
269 | VRAMBuffer=vnapage[(tmp>>10)&0x3][tmp&0x3FF]; |
270 | } |
271 | |
272 | if (INC32) RefreshAddr+=32; |
273 | else RefreshAddr++; |
274 | if(PPU_hook) PPU_hook(RefreshAddr&0x3fff); |
275 | return ret; |
276 | } |
277 | |
278 | static DECLFW(B2000) |
279 | { |
280 | PPUGenLatch=V; |
281 | PPU[0]=V; |
282 | TempAddr&=0xF3FF; |
283 | TempAddr|=(V&3)<<10; |
284 | } |
285 | |
286 | static DECLFW(B2001) |
287 | { |
288 | PPUGenLatch=V; |
289 | PPU[1]=V; |
290 | if(V&0xE0) |
291 | deemp=V>>5; |
292 | //printf("$%04x:$%02x, %d\n",X.PC,V,scanline); |
293 | } |
294 | |
295 | static DECLFW(B2002) |
296 | { |
297 | PPUGenLatch=V; |
298 | } |
299 | |
300 | static DECLFW(B2003) |
301 | { |
302 | PPUGenLatch=V; |
303 | PPU[3]=V; |
304 | PPUSPL=V&0x7; |
305 | } |
306 | |
307 | static DECLFW(B2004) |
308 | { |
309 | PPUGenLatch=V; |
310 | //SPRAM[PPU[3]++]=V; |
311 | if(PPUSPL&8) |
312 | { |
313 | if(PPU[3]>=8) |
314 | SPRAM[PPU[3]]=V; |
315 | } |
316 | else |
317 | { |
318 | //printf("$%02x:$%02x\n",PPUSPL,V); |
319 | SPRAM[PPUSPL]=V; |
320 | PPUSPL++; |
321 | } |
322 | PPU[3]++; |
323 | } |
324 | |
325 | static DECLFW(B2005) |
326 | { |
327 | uint32 tmp=TempAddr; |
328 | |
329 | PPUGenLatch=V; |
330 | if (!vtoggle) |
331 | { |
332 | tmp&=0xFFE0; |
333 | tmp|=V>>3; |
334 | XOffset=V&7; |
335 | } |
336 | else |
337 | { |
338 | tmp&=0x8C1F; |
339 | tmp|=((V&~0x7)<<2); |
340 | tmp|=(V&7)<<12; |
341 | } |
342 | |
343 | TempAddr=tmp; |
344 | vtoggle^=1; |
345 | } |
346 | |
347 | static DECLFW(B2006) |
348 | { |
349 | PPUGenLatch=V; |
350 | if(!vtoggle) |
351 | { |
352 | TempAddr&=0x00FF; |
353 | TempAddr|=(V&0x3f)<<8; |
354 | } |
355 | else |
356 | { |
357 | TempAddr&=0xFF00; |
358 | TempAddr|=V; |
359 | RefreshAddr=TempAddr; |
360 | |
361 | if(PPU_hook) |
362 | PPU_hook(RefreshAddr); |
363 | } |
364 | vtoggle^=1; |
365 | } |
366 | |
367 | static DECLFW(B2007) |
368 | { |
369 | uint32 tmp=RefreshAddr&0x3FFF; |
370 | |
371 | PPUGenLatch=V; |
372 | if(tmp>=0x3F00) |
373 | { |
374 | // hmmm.... |
375 | if(!(tmp&0xf)) |
376 | PALRAM[0x00]=PALRAM[0x04]=PALRAM[0x08]=PALRAM[0x0C]= |
377 | PALRAM[0x10]=PALRAM[0x14]=PALRAM[0x18]=PALRAM[0x1c]=V&0x3f; |
378 | else if(tmp&3) PALRAM[(tmp&0x1f)]=V&0x3f; |
379 | } |
380 | else if(tmp<0x2000) |
381 | { |
382 | if(PPUCHRRAM&(1<<(tmp>>10))) |
383 | VPage[tmp>>10][tmp]=V; |
384 | } |
385 | else |
386 | { |
387 | if(PPUNTARAM&(1<<((tmp&0xF00)>>10))) |
388 | vnapage[((tmp&0xF00)>>10)][tmp&0x3FF]=V; |
389 | } |
390 | if (INC32) RefreshAddr+=32; |
391 | else RefreshAddr++; |
392 | if(PPU_hook) PPU_hook(RefreshAddr&0x3fff); |
393 | } |
394 | |
395 | static DECLFW(B4014) |
396 | { |
397 | uint32 t=V<<8; |
398 | int x; |
399 | for(x=0;x<256;x++) |
400 | B2004(0x2004,X.DB=ARead[t+x](t+x)); |
401 | X6502_AddCycles(512); |
402 | } |
403 | |
404 | static void FASTAPASS(1) BGRender(uint8 *target) |
405 | { |
406 | uint32 tem; |
407 | RefreshLine(target); |
408 | if(!(PPU[1]&2)) |
409 | { |
410 | tem=Pal[0]|(Pal[0]<<8)|(Pal[0]<<16)|(Pal[0]<<24); |
411 | tem|=0x40404040; |
412 | *(uint32 *)target=*(uint32 *)(target+4)=tem; |
413 | } |
414 | } |
415 | |
416 | #ifdef FRAMESKIP |
417 | static int FSkip=0; |
418 | void FCEUI_FrameSkip(int x) |
419 | { |
420 | FSkip=x; |
421 | } |
422 | #endif |
423 | |
424 | /* This is called at the beginning of each visible scanline */ |
425 | static void Loop6502(void) |
426 | { |
427 | uint32 tem; |
428 | int x; |
429 | uint8 *target=XBuf+(scanline<<8)+(scanline<<4)+8; |
430 | |
431 | if(ScreenON || SpriteON) |
432 | { |
433 | /* PRefreshLine() will not get called on skipped frames. This |
434 | could cause a problem, but the solution would be rather complex, |
435 | due to the current sprite 0 hit code. |
436 | */ |
437 | #ifdef FRAMESKIP |
438 | if(!FSkip) |
439 | { |
440 | #endif |
441 | if(ScreenON) |
442 | { |
443 | if(scanline>=FSettings.FirstSLine && scanline<=FSettings.LastSLine) |
444 | BGRender(target); |
445 | else |
446 | { |
447 | if(PPU_hook) |
448 | PRefreshLine(); |
449 | } |
450 | } |
451 | else |
452 | { |
453 | tem=Pal[0]|(Pal[0]<<8)|(Pal[0]<<16)|(Pal[0]<<24); |
454 | tem|=0x40404040; |
455 | FCEU_dwmemset(target,tem,264); |
456 | } |
457 | #ifdef FRAMESKIP |
458 | } |
459 | #endif |
460 | if (SpriteON && scanline) |
461 | RefreshSprite(target); |
462 | #ifdef FRAMESKIP |
463 | if(!FSkip) |
464 | { |
465 | #endif |
466 | if(PPU[1]&0x01) |
467 | { |
468 | for(x=63;x>=0;x--) |
469 | *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])&0xF0F0F0F0; |
470 | } |
471 | if((PPU[1]>>5)==0x7) |
472 | for(x=63;x>=0;x--) |
473 | *(uint32 *)&target[x<<2]=((*(uint32*)&target[x<<2])&0x3f3f3f3f)|0x40404040; |
474 | else if(PPU[1]&0xE0) |
475 | for(x=63;x>=0;x--) |
476 | *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])|0xC0C0C0C0; |
477 | else |
478 | for(x=63;x>=0;x--) |
479 | *(uint32 *)&target[x<<2]=(*(uint32*)&target[x<<2])&0x3f3f3f3f; |
480 | |
481 | #ifdef FRAMESKIP |
482 | } |
483 | #endif |
484 | } |
485 | else |
486 | { |
487 | tem=Pal[0]|(Pal[0]<<8)|(Pal[0]<<16)|(Pal[0]<<24); |
488 | FCEU_dwmemset(target,tem,256); |
489 | } |
490 | if(InputScanlineHook) |
491 | InputScanlineHook(target, scanline); |
492 | } |
493 | |
494 | #define PAL(c) ((c)+cc) |
495 | |
496 | |
497 | static void PRefreshLine(void) |
498 | { |
499 | uint32 vofs; |
500 | uint8 X1; |
501 | |
502 | vofs = 0; |
503 | if (BGAdrHI) vofs = 0x1000; |
504 | |
505 | vofs+=(RefreshAddr>>12)&7; |
506 | |
507 | for(X1=33;X1;X1--) |
508 | { |
509 | register uint8 no; |
510 | register uint8 zz2; |
511 | zz2=(uint8)((RefreshAddr>>10)&3); |
512 | PPU_hook(0x2000|(RefreshAddr&0xFFF)); |
513 | no = vnapage[zz2][(RefreshAddr&0x3ff)]; |
514 | PPU_hook((no<<4)+vofs); |
515 | if((RefreshAddr&0x1f)==0x1f) |
516 | RefreshAddr^=0x41F; |
517 | else |
518 | RefreshAddr++; |
519 | } |
520 | } |
521 | |
522 | /* Total of 33 tiles(32 + 1 extra) */ |
523 | static void FASTAPASS(1) RefreshLine(uint8 *target) |
524 | { |
525 | uint32 vofs; |
526 | int X1; |
527 | register uint8 *P=target; |
528 | |
529 | vofs=0; |
530 | |
531 | Pal[0]|=64; |
532 | Pal[4]|=64; |
533 | Pal[8]|=64; |
534 | Pal[0xC]|=64; |
535 | |
536 | vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7); |
537 | P-=XOffset; |
538 | |
539 | /* This high-level graphics MMC5 emulation code was written |
540 | for MMC5 carts in "CL" mode. It's probably not totally |
541 | correct for carts in "SL" mode. |
542 | */ |
543 | if(MMC5Hack && geniestage!=1) |
544 | { |
545 | if(MMC5HackCHRMode==0 && (MMC5HackSPMode&0x80)) |
546 | { |
547 | int8 tochange; |
548 | |
549 | tochange=MMC5HackSPMode&0x1F; |
550 | |
551 | for(X1=33;X1;X1--,P+=8) |
552 | { |
553 | uint8 *C; |
554 | register uint8 cc,zz,zz2; |
555 | uint32 vadr; |
556 | |
557 | if((tochange<=0 && MMC5HackSPMode&0x40) || |
558 | (tochange>0 && !(MMC5HackSPMode&0x40))) |
559 | { |
560 | uint8 xs,ys; |
561 | |
562 | xs=33-X1; |
563 | ys=((scanline>>3)+MMC5HackSPScroll)&0x1F; |
564 | if(ys>=0x1E) ys-=0x1E; |
565 | vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7); |
566 | |
567 | C = MMC5HackVROMPTR+vadr; |
568 | C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12); |
569 | |
570 | cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)]; |
571 | cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2; |
572 | } |
573 | else |
574 | { |
575 | zz=RefreshAddr&0x1F; |
576 | zz2=(RefreshAddr>>10)&3; |
577 | vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs; |
578 | C = MMC5BGVRAMADR(vadr); |
579 | cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)]; |
580 | cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2; |
581 | } |
582 | #include "fceline.h" |
583 | |
584 | if((RefreshAddr&0x1f)==0x1f) |
585 | RefreshAddr^=0x41F; |
586 | else |
587 | RefreshAddr++; |
588 | tochange--; |
589 | } |
590 | } |
591 | else if(MMC5HackCHRMode==1 && (MMC5HackSPMode&0x80)) |
592 | { |
593 | int8 tochange; |
594 | |
595 | tochange=MMC5HackSPMode&0x1F; |
596 | |
597 | for(X1=33;X1;X1--,P+=8) |
598 | { |
599 | uint8 *C; |
600 | register uint8 cc; |
601 | register uint8 zz2; |
602 | uint32 vadr; |
603 | |
604 | if((tochange<=0 && MMC5HackSPMode&0x40) || |
605 | (tochange>0 && !(MMC5HackSPMode&0x40))) |
606 | { |
607 | uint8 xs,ys; |
608 | |
609 | xs=33-X1; |
610 | ys=((scanline>>3)+MMC5HackSPScroll)&0x1F; |
611 | if(ys>=0x1E) ys-=0x1E; |
612 | vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7); |
613 | |
614 | C = MMC5HackVROMPTR+vadr; |
615 | C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12); |
616 | |
617 | cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)]; |
618 | cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2; |
619 | } |
620 | else |
621 | { |
622 | C=MMC5HackVROMPTR; |
623 | zz2=(RefreshAddr>>10)&3; |
624 | vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs; |
625 | C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f & |
626 | MMC5HackVROMMask) << 12) + (vadr & 0xfff); |
627 | vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4; |
628 | cc = vadr; |
629 | } |
630 | #include "fceline.h" |
631 | if((RefreshAddr&0x1f)==0x1f) |
632 | RefreshAddr^=0x41F; |
633 | else |
634 | RefreshAddr++; |
635 | tochange--; |
636 | } |
637 | } |
638 | |
639 | else if(MMC5HackCHRMode==1) |
640 | { |
641 | for(X1=33;X1;X1--,P+=8) |
642 | { |
643 | uint8 *C; |
644 | register uint8 cc; |
645 | register uint8 zz2; |
646 | uint32 vadr; |
647 | |
648 | C=MMC5HackVROMPTR; |
649 | zz2=(RefreshAddr>>10)&3; |
650 | vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs; |
651 | C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f & |
652 | MMC5HackVROMMask) << 12) + (vadr & 0xfff); |
653 | vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4; |
654 | cc = vadr; |
655 | |
656 | #include "fceline.h" |
657 | if((RefreshAddr&0x1f)==0x1f) |
658 | RefreshAddr^=0x41F; |
659 | else |
660 | RefreshAddr++; |
661 | } |
662 | } |
663 | else |
664 | { |
665 | for(X1=33;X1;X1--,P+=8) |
666 | { |
667 | uint8 *C; |
668 | register uint8 cc,zz,zz2; |
669 | uint32 vadr; |
670 | |
671 | zz=RefreshAddr&0x1F; |
672 | zz2=(RefreshAddr>>10)&3; |
673 | vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs; |
674 | C = MMC5BGVRAMADR(vadr); |
675 | cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)]; |
676 | cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2; |
677 | |
678 | #include "fceline.h" |
679 | |
680 | if((RefreshAddr&0x1f)==0x1f) |
681 | RefreshAddr^=0x41F; |
682 | else |
683 | RefreshAddr++; |
684 | } |
685 | } |
686 | } // End if(MMC5Hack) |
687 | |
688 | else if(PPU_hook) |
689 | { |
690 | for(X1=33;X1;X1--,P+=8) |
691 | { |
692 | uint8 *C; |
693 | register uint8 cc,zz,zz2; |
694 | uint32 vadr; |
695 | |
696 | zz=RefreshAddr&0x1F; |
697 | zz2=(RefreshAddr>>10)&3; |
698 | PPU_hook(0x2000|(RefreshAddr&0xFFF)); |
699 | cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)]; |
700 | cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2; |
701 | vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs; |
702 | C = VRAMADR(vadr); |
703 | |
704 | #include "fceline.h" |
705 | |
706 | PPU_hook(vadr); |
707 | |
708 | if((RefreshAddr&0x1f)==0x1f) |
709 | RefreshAddr^=0x41F; |
710 | else |
711 | RefreshAddr++; |
712 | } |
713 | } |
714 | else |
715 | { |
716 | for(X1=33;X1;X1--,P+=8) |
717 | { |
718 | uint8 *C; |
719 | register uint8 cc,zz,zz2; |
720 | uint32 vadr; |
721 | |
722 | zz=RefreshAddr&0x1F; |
723 | zz2=(RefreshAddr>>10)&3; |
724 | vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs; |
725 | C = VRAMADR(vadr); |
726 | cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)]; |
727 | cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2; |
728 | #include "fceline.h" |
729 | |
730 | if((RefreshAddr&0x1f)==0x1f) |
731 | RefreshAddr^=0x41F; |
732 | else |
733 | RefreshAddr++; |
734 | } |
735 | } |
736 | |
737 | #undef vofs |
738 | |
739 | Pal[0]&=63; |
740 | Pal[4]&=63; |
741 | Pal[8]&=63; |
742 | Pal[0xC]&=63; |
743 | } |
744 | |
745 | static INLINE void Fixit2(void) |
746 | { |
747 | if(ScreenON || SpriteON) |
748 | { |
749 | uint32 rad=RefreshAddr; |
750 | rad&=0xFBE0; |
751 | rad|=TempAddr&0x041f; |
752 | RefreshAddr=rad; |
753 | //PPU_hook(RefreshAddr,-1); |
754 | } |
755 | } |
756 | |
757 | static INLINE void Fixit1(void) |
758 | { |
759 | if(ScreenON || SpriteON) |
760 | { |
761 | uint32 rad=RefreshAddr; |
762 | |
763 | if((rad&0x7000)==0x7000) |
764 | { |
765 | rad^=0x7000; |
766 | if((rad&0x3E0)==0x3A0) |
767 | { |
768 | rad^=0x3A0; |
769 | rad^=0x800; |
770 | } |
771 | else |
772 | { |
773 | if((rad&0x3E0)==0x3e0) |
774 | rad^=0x3e0; |
775 | else rad+=0x20; |
776 | } |
777 | } |
778 | else |
779 | rad+=0x1000; |
780 | RefreshAddr=rad; |
781 | //PPU_hook(RefreshAddr,-1); |
782 | } |
783 | } |
784 | |
785 | /* This is called at the beginning of all h-blanks on visible lines. */ |
786 | static void DoHBlank(void) |
787 | { |
788 | if(ScreenON || SpriteON) |
789 | FetchSpriteData(); |
790 | if(GameHBIRQHook && (ScreenON || SpriteON)) |
791 | { |
792 | X6502_Run(12); |
793 | GameHBIRQHook(); |
794 | X6502_Run(25-12); |
795 | Fixit2(); |
796 | X6502_Run(85-25); |
797 | } |
798 | else |
799 | { |
800 | X6502_Run(25); // Tried 65, caused problems with Slalom(maybe others) |
801 | Fixit2(); |
802 | X6502_Run(85-25); |
803 | } |
804 | //PPU_hook(0,-1); |
805 | //fprintf(stderr,"%3d: $%04x\n",scanline,RefreshAddr); |
806 | } |
807 | |
808 | #define V_FLIP 0x80 |
809 | #define H_FLIP 0x40 |
810 | #define SP_BACK 0x20 |
811 | |
812 | typedef struct { |
813 | uint8 y,no,atr,x; |
814 | } SPR; |
815 | |
816 | typedef struct { |
817 | uint8 ca[2],atr,x; |
818 | } SPRB; |
819 | |
820 | uint8 sprlinebuf[256+8]; |
821 | |
822 | void FCEUI_DisableSpriteLimitation(int a) |
823 | { |
824 | maxsprites=a?64:8; |
825 | } |
826 | |
827 | static uint8 nosprites,SpriteBlurp; |
828 | |
829 | static void FetchSpriteData(void) |
830 | { |
831 | SPR *spr; |
832 | uint8 H; |
833 | int n,vofs; |
834 | |
835 | spr=(SPR *)SPRAM; |
836 | H=8; |
837 | |
838 | nosprites=SpriteBlurp=0; |
839 | |
840 | vofs=(unsigned int)(PPU[0]&0x8&(((PPU[0]&0x20)^0x20)>>2))<<9; |
841 | H+=(PPU[0]&0x20)>>2; |
842 | |
843 | if(!PPU_hook) |
844 | for(n=63;n>=0;n--,spr++) |
845 | { |
846 | if((unsigned int)(scanline-spr->y)>=H) continue; |
847 | |
848 | if(nosprites<maxsprites) |
849 | { |
850 | if(n==63) SpriteBlurp=1; |
851 | |
852 | { |
853 | SPRB dst; |
854 | uint8 *C; |
855 | int t; |
856 | unsigned int vadr; |
857 | |
858 | t = (int)scanline-(spr->y); |
859 | |
860 | if (Sprite16) |
861 | vadr = ((spr->no&1)<<12) + ((spr->no&0xFE)<<4); |
862 | else |
863 | vadr = (spr->no<<4)+vofs; |
864 | |
865 | if (spr->atr&V_FLIP) |
866 | { |
867 | vadr+=7; |
868 | vadr-=t; |
869 | vadr+=(PPU[0]&0x20)>>1; |
870 | vadr-=t&8; |
871 | } |
872 | else |
873 | { |
874 | vadr+=t; |
875 | vadr+=t&8; |
876 | } |
877 | |
878 | /* Fix this geniestage hack */ |
879 | if(MMC5Hack && geniestage!=1) C = MMC5SPRVRAMADR(vadr); |
880 | else C = VRAMADR(vadr); |
881 | |
882 | |
883 | dst.ca[0]=C[0]; |
884 | dst.ca[1]=C[8]; |
885 | dst.x=spr->x; |
886 | dst.atr=spr->atr; |
887 | |
888 | |
889 | *(uint32 *)&SPRBUF[nosprites<<2]=*(uint32 *)&dst; |
890 | } |
891 | |
892 | nosprites++; |
893 | } |
894 | else |
895 | { |
896 | PPU_status|=0x20; |
897 | break; |
898 | } |
899 | } |
900 | else |
901 | for(n=63;n>=0;n--,spr++) |
902 | { |
903 | if((unsigned int)(scanline-spr->y)>=H) continue; |
904 | |
905 | if(nosprites<maxsprites) |
906 | { |
907 | if(n==63) SpriteBlurp=1; |
908 | |
909 | { |
910 | SPRB dst; |
911 | uint8 *C; |
912 | int t; |
913 | unsigned int vadr; |
914 | |
915 | t = (int)scanline-(spr->y); |
916 | |
917 | if (Sprite16) |
918 | vadr = ((spr->no&1)<<12) + ((spr->no&0xFE)<<4); |
919 | else |
920 | vadr = (spr->no<<4)+vofs; |
921 | |
922 | if (spr->atr&V_FLIP) |
923 | { |
924 | vadr+=7; |
925 | vadr-=t; |
926 | vadr+=(PPU[0]&0x20)>>1; |
927 | vadr-=t&8; |
928 | } |
929 | else |
930 | { |
931 | vadr+=t; |
932 | vadr+=t&8; |
933 | } |
934 | |
935 | if(MMC5Hack) C = MMC5SPRVRAMADR(vadr); |
936 | else C = VRAMADR(vadr); |
937 | dst.ca[0]=C[0]; |
938 | PPU_hook(vadr); |
939 | dst.ca[1]=C[8]; |
940 | PPU_hook(vadr|8); |
941 | dst.x=spr->x; |
942 | dst.atr=spr->atr; |
943 | |
944 | |
945 | *(uint32 *)&SPRBUF[nosprites<<2]=*(uint32 *)&dst; |
946 | } |
947 | |
948 | nosprites++; |
949 | } |
950 | else |
951 | { |
952 | PPU_status|=0x20; |
953 | break; |
954 | } |
955 | } |
956 | } |
957 | |
958 | static void FASTAPASS(1) RefreshSprite(uint8 *target) |
959 | { |
960 | int n; |
961 | SPRB *spr; |
962 | uint8 *P=target; |
963 | |
964 | if(!nosprites) return; |
965 | #ifdef FRAMESKIP |
966 | if(FSkip) |
967 | { |
968 | if(!SpriteBlurp) |
969 | { |
970 | nosprites=0; |
971 | return; |
972 | } |
973 | else |
974 | nosprites=1; |
975 | } |
976 | #endif |
977 | |
978 | FCEU_dwmemset(sprlinebuf,0x80808080,256); |
979 | nosprites--; |
980 | spr = (SPRB*)SPRBUF+nosprites; |
981 | |
982 | for(n=nosprites;n>=0;n--,spr--) |
983 | { |
984 | register uint8 J,atr,c1,c2; |
985 | int x=spr->x; |
986 | uint8 *C; |
987 | uint8 *VB; |
988 | |
989 | P+=x; |
990 | |
991 | c1=((spr->ca[0]>>1)&0x55)|(spr->ca[1]&0xAA); |
992 | c2=(spr->ca[0]&0x55)|((spr->ca[1]<<1)&0xAA); |
993 | |
994 | J=spr->ca[0]|spr->ca[1]; |
995 | atr=spr->atr; |
996 | |
997 | if(J) |
998 | { |
999 | if(n==0 && SpriteBlurp && !(PPU_status&0x40)) |
1000 | { |
1001 | int z,ze=x+8; |
1002 | if(ze>256) {ze=256;} |
1003 | if(ScreenON && (scanline<FSettings.FirstSLine || scanline>FSettings.LastSLine |
1004 | #ifdef FRAMESKIP |
1005 | || FSkip |
1006 | #endif |
1007 | )) |
1008 | BGRender(target); |
1009 | |
1010 | if(!(atr&H_FLIP)) |
1011 | { |
1012 | for(z=x;z<ze;z++) |
1013 | { |
1014 | if(J&(0x80>>(z-x))) |
1015 | { |
1016 | if(!(target[z]&64)) |
1017 | tosprite=z; |
1018 | } |
1019 | } |
1020 | } |
1021 | else |
1022 | { |
1023 | for(z=x;z<ze;z++) |
1024 | { |
1025 | if(J&(1<<(z-x))) |
1026 | { |
1027 | if(!(target[z]&64)) |
1028 | tosprite=z; |
1029 | } |
1030 | } |
1031 | } |
1032 | //FCEU_DispMessage("%d, %d:%d",scanline,x,tosprite); |
1033 | } |
1034 | |
1035 | C = sprlinebuf+x; |
1036 | VB = (PALRAM+0x10)+((atr&3)<<2); |
1037 | |
1038 | if(atr&SP_BACK) |
1039 | { |
1040 | if (atr&H_FLIP) |
1041 | { |
1042 | if (J&0x02) C[1]=VB[c1&3]|0x40; |
1043 | if (J&0x01) *C=VB[c2&3]|0x40; |
1044 | c1>>=2;c2>>=2; |
1045 | if (J&0x08) C[3]=VB[c1&3]|0x40;; |
1046 | if (J&0x04) C[2]=VB[c2&3]|0x40;; |
1047 | c1>>=2;c2>>=2; |
1048 | if (J&0x20) C[5]=VB[c1&3]|0x40;; |
1049 | if (J&0x10) C[4]=VB[c2&3]|0x40;; |
1050 | c1>>=2;c2>>=2; |
1051 | if (J&0x80) C[7]=VB[c1]|0x40;; |
1052 | if (J&0x40) C[6]=VB[c2]|0x40;; |
1053 | } else { |
1054 | if (J&0x02) C[6]=VB[c1&3]|0x40; |
1055 | if (J&0x01) C[7]=VB[c2&3]|0x40; |
1056 | c1>>=2;c2>>=2; |
1057 | if (J&0x08) C[4]=VB[c1&3]|0x40; |
1058 | if (J&0x04) C[5]=VB[c2&3]|0x40; |
1059 | c1>>=2;c2>>=2; |
1060 | if (J&0x20) C[2]=VB[c1&3]|0x40; |
1061 | if (J&0x10) C[3]=VB[c2&3]|0x40; |
1062 | c1>>=2;c2>>=2; |
1063 | if (J&0x80) *C=VB[c1]|0x40; |
1064 | if (J&0x40) C[1]=VB[c2]|0x40; |
1065 | } |
1066 | } else { |
1067 | if (atr&H_FLIP) |
1068 | { |
1069 | if (J&0x02) C[1]=VB[(c1&3)]; |
1070 | if (J&0x01) *C=VB[(c2&3)]; |
1071 | c1>>=2;c2>>=2; |
1072 | if (J&0x08) C[3]=VB[(c1&3)]; |
1073 | if (J&0x04) C[2]=VB[(c2&3)]; |
1074 | c1>>=2;c2>>=2; |
1075 | if (J&0x20) C[5]=VB[(c1&3)]; |
1076 | if (J&0x10) C[4]=VB[(c2&3)]; |
1077 | c1>>=2;c2>>=2; |
1078 | if (J&0x80) C[7]=VB[c1]; |
1079 | if (J&0x40) C[6]=VB[c2]; |
1080 | }else{ |
1081 | if (J&0x02) C[6]=VB[(c1&3)]; |
1082 | if (J&0x01) C[7]=VB[(c2&3)]; |
1083 | c1>>=2;c2>>=2; |
1084 | if (J&0x08) C[4]=VB[(c1&3)]; |
1085 | if (J&0x04) C[5]=VB[(c2&3)]; |
1086 | c1>>=2;c2>>=2; |
1087 | if (J&0x20) C[2]=VB[(c1&3)]; |
1088 | if (J&0x10) C[3]=VB[(c2&3)]; |
1089 | c1>>=2;c2>>=2; |
1090 | if (J&0x80) *C=VB[c1]; |
1091 | if (J&0x40) C[1]=VB[c2]; |
1092 | } |
1093 | } |
1094 | } |
1095 | P-=x; |
1096 | } |
1097 | |
1098 | nosprites=0; |
1099 | #ifdef FRAMESKIP |
1100 | if(FSkip) return; |
1101 | #endif |
1102 | |
1103 | { |
1104 | uint8 n=((PPU[1]&4)^4)<<1; |
1105 | loopskie: |
1106 | { |
1107 | uint32 t=*(uint32 *)(sprlinebuf+n); |
1108 | if(t!=0x80808080) |
1109 | { |
1110 | #ifdef LSB_FIRST |
1111 | if(!(t&0x80)) |
1112 | { |
1113 | if(!(t&0x40)) // Normal sprite |
1114 | P[n]=sprlinebuf[n]; |
1115 | else if(P[n]&64) // behind bg sprite |
1116 | P[n]=sprlinebuf[n]; |
1117 | } |
1118 | |
1119 | if(!(t&0x8000)) |
1120 | { |
1121 | if(!(t&0x4000)) // Normal sprite |
1122 | P[n+1]=(sprlinebuf+1)[n]; |
1123 | else if(P[n+1]&64) // behind bg sprite |
1124 | P[n+1]=(sprlinebuf+1)[n]; |
1125 | } |
1126 | |
1127 | if(!(t&0x800000)) |
1128 | { |
1129 | if(!(t&0x400000)) // Normal sprite |
1130 | P[n+2]=(sprlinebuf+2)[n]; |
1131 | else if(P[n+2]&64) // behind bg sprite |
1132 | P[n+2]=(sprlinebuf+2)[n]; |
1133 | } |
1134 | |
1135 | if(!(t&0x80000000)) |
1136 | { |
1137 | if(!(t&0x40000000)) // Normal sprite |
1138 | P[n+3]=(sprlinebuf+3)[n]; |
1139 | else if(P[n+3]&64) // behind bg sprite |
1140 | P[n+3]=(sprlinebuf+3)[n]; |
1141 | } |
1142 | #else |
1143 | if(!(t&0x80000000)) |
1144 | { |
1145 | if(!(t&0x40)) // Normal sprite |
1146 | P[n]=sprlinebuf[n]; |
1147 | else if(P[n]&64) // behind bg sprite |
1148 | P[n]=sprlinebuf[n]; |
1149 | } |
1150 | |
1151 | if(!(t&0x800000)) |
1152 | { |
1153 | if(!(t&0x4000)) // Normal sprite |
1154 | P[n+1]=(sprlinebuf+1)[n]; |
1155 | else if(P[n+1]&64) // behind bg sprite |
1156 | P[n+1]=(sprlinebuf+1)[n]; |
1157 | } |
1158 | |
1159 | if(!(t&0x8000)) |
1160 | { |
1161 | if(!(t&0x400000)) // Normal sprite |
1162 | P[n+2]=(sprlinebuf+2)[n]; |
1163 | else if(P[n+2]&64) // behind bg sprite |
1164 | P[n+2]=(sprlinebuf+2)[n]; |
1165 | } |
1166 | |
1167 | if(!(t&0x80)) |
1168 | { |
1169 | if(!(t&0x40000000)) // Normal sprite |
1170 | P[n+3]=(sprlinebuf+3)[n]; |
1171 | else if(P[n+3]&64) // behind bg sprite |
1172 | P[n+3]=(sprlinebuf+3)[n]; |
1173 | } |
1174 | #endif |
1175 | } |
1176 | } |
1177 | n+=4; |
1178 | if(n) goto loopskie; |
1179 | } |
1180 | } |
1181 | |
1182 | void ResetMapping(void) |
1183 | { |
1184 | int x; |
1185 | |
1186 | SetReadHandler(0x0000,0xFFFF,ANull); |
1187 | SetWriteHandler(0x0000,0xFFFF,BNull); |
1188 | |
1189 | SetReadHandler(0,0x7FF,ARAML); |
1190 | SetWriteHandler(0,0x7FF,BRAML); |
1191 | |
1192 | SetReadHandler(0x800,0x1FFF,ARAMH); /* Part of a little */ |
1193 | SetWriteHandler(0x800,0x1FFF,BRAMH); /* hack for a small speed boost. */ |
1194 | |
1195 | for(x=0x2000;x<0x4000;x+=8) |
1196 | { |
1197 | ARead[x]=A200x; |
1198 | BWrite[x]=B2000; |
1199 | ARead[x+1]=A200x; |
1200 | BWrite[x+1]=B2001; |
1201 | ARead[x+2]=A2002; |
1202 | BWrite[x+2]=B2002; |
1203 | ARead[x+3]=A200x; |
1204 | BWrite[x+3]=B2003; |
1205 | ARead[x+4]=A200x; |
1206 | BWrite[x+4]=B2004; |
1207 | ARead[x+5]=A200x; |
1208 | BWrite[x+5]=B2005; |
1209 | ARead[x+6]=A200x; |
1210 | BWrite[x+6]=B2006; |
1211 | ARead[x+7]=A2007; |
1212 | BWrite[x+7]=B2007; |
1213 | } |
1214 | |
1215 | BWrite[0x4014]=B4014; |
1216 | SetNESSoundMap(); |
1217 | InitializeInput(); |
1218 | } |
1219 | |
1220 | int GameLoaded=0; |
1221 | void CloseGame(void) |
1222 | { |
1223 | if(GameLoaded) |
1224 | { |
1225 | if(FCEUGameInfo.type!=GIT_NSF) |
1226 | FlushGameCheats(); |
1227 | #ifdef NETWORK |
1228 | if(FSettings.NetworkPlay) KillNetplay(); |
1229 | #endif |
1230 | GameInterface(GI_CLOSE); |
1231 | CloseGenie(); |
1232 | GameLoaded=0; |
1233 | } |
1234 | } |
1235 | |
1236 | void ResetGameLoaded(void) |
1237 | { |
1238 | if(GameLoaded) CloseGame(); |
1239 | GameStateRestore=0; |
1240 | PPU_hook=0; |
1241 | GameHBIRQHook=0; |
1242 | GameExpSound.Fill=0; |
1243 | GameExpSound.RChange=0; |
1244 | if(GameExpSound.Kill) |
1245 | GameExpSound.Kill(); |
1246 | GameExpSound.Kill=0; |
1247 | MapIRQHook=0; |
1248 | MMC5Hack=0; |
1249 | PAL&=1; |
1250 | pale=0; |
1251 | |
1252 | FCEUGameInfo.name=0; |
1253 | FCEUGameInfo.type=GIT_CART; |
1254 | FCEUGameInfo.vidsys=GIV_USER; |
1255 | FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=-1; |
1256 | FCEUGameInfo.inputfc=-1; |
1257 | } |
1258 | |
1259 | FCEUGI *FCEUI_LoadGame(char *name) |
1260 | { |
1261 | int fp; |
1262 | |
1263 | Exit=1; |
1264 | ResetGameLoaded(); |
1265 | |
1266 | fp=FCEU_fopen(name,"rb"); |
1267 | if(!fp) |
1268 | { |
1269 | FCEU_PrintError("Error opening \"%s\"!",name); |
1270 | return 0; |
1271 | } |
1272 | |
1273 | GetFileBase(name); |
1274 | if(iNESLoad(name,fp)) |
1275 | goto endlseq; |
1276 | if(NSFLoad(fp)) |
1277 | goto endlseq; |
1278 | if(FDSLoad(name,fp)) |
1279 | goto endlseq; |
1280 | if(UNIFLoad(name,fp)) |
1281 | goto endlseq; |
1282 | |
1283 | FCEU_PrintError("An error occurred while loading the file."); |
1284 | FCEU_fclose(fp); |
1285 | return 0; |
1286 | |
1287 | endlseq: |
1288 | FCEU_fclose(fp); |
1289 | GameLoaded=1; |
1290 | |
1291 | FCEU_ResetVidSys(); |
1292 | if(FCEUGameInfo.type!=GIT_NSF) |
1293 | if(FSettings.GameGenie) |
1294 | OpenGenie(); |
1295 | |
1296 | PowerNES(); |
1297 | #ifdef NETWORK |
1298 | if(FSettings.NetworkPlay) InitNetplay(); |
1299 | #endif |
1300 | SaveStateRefresh(); |
1301 | if(FCEUGameInfo.type!=GIT_NSF) |
1302 | { |
1303 | LoadGamePalette(); |
1304 | LoadGameCheats(); |
1305 | } |
1306 | |
1307 | FCEU_ResetPalette(); |
1308 | Exit=0; |
1309 | return(&FCEUGameInfo); |
1310 | } |
1311 | |
1312 | |
1313 | void FCEU_ResetVidSys(void) |
1314 | { |
1315 | int w; |
1316 | |
1317 | if(FCEUGameInfo.vidsys==GIV_NTSC) |
1318 | w=0; |
1319 | else if(FCEUGameInfo.vidsys==GIV_PAL) |
1320 | w=1; |
1321 | else |
1322 | w=FSettings.PAL; |
1323 | |
1324 | if(w) |
1325 | { |
1326 | PAL=1; |
1327 | scanlines_per_frame=312; |
1328 | FSettings.FirstSLine=FSettings.UsrFirstSLine[1]; |
1329 | FSettings.LastSLine=FSettings.UsrLastSLine[1]; |
1330 | } |
1331 | else |
1332 | { |
1333 | PAL=0; |
1334 | scanlines_per_frame=262; |
1335 | FSettings.FirstSLine=FSettings.UsrFirstSLine[0]; |
1336 | FSettings.LastSLine=FSettings.UsrLastSLine[0]; |
1337 | } |
1338 | SetSoundVariables(); |
1339 | } |
1340 | |
1341 | int FCEUI_Initialize(void) |
1342 | { |
1343 | if(!InitVirtualVideo()) |
1344 | return 0; |
1345 | memset(&FSettings,0,sizeof(FSettings)); |
1346 | FSettings.UsrFirstSLine[0]=8; |
1347 | FSettings.UsrFirstSLine[1]=0; |
1348 | FSettings.UsrLastSLine[0]=FSettings.UsrLastSLine[1]=239; |
1349 | FSettings.SoundVolume=65536; // 100% |
1350 | return 1; |
1351 | } |
1352 | |
1353 | #define harko 0xe //0x9 |
1354 | static INLINE void Thingo(void) |
1355 | { |
1356 | Loop6502(); |
1357 | |
1358 | if(tosprite>=256) |
1359 | { |
1360 | X6502_Run(256-harko); |
1361 | Fixit1(); |
1362 | X6502_Run(harko); |
1363 | } |
1364 | else |
1365 | { |
1366 | if(tosprite<=240) |
1367 | { |
1368 | X6502_Run(tosprite); |
1369 | PPU[2]|=0x40; |
1370 | X6502_Run(256-tosprite-harko); |
1371 | Fixit1(); |
1372 | X6502_Run(harko); |
1373 | } |
1374 | else |
1375 | { |
1376 | X6502_Run(256-harko); |
1377 | Fixit1(); |
1378 | X6502_Run(tosprite-(256-harko)); |
1379 | PPU[2]|=0x40; |
1380 | X6502_Run(256-tosprite); |
1381 | } |
1382 | tosprite=256; |
1383 | } |
1384 | DoHBlank(); |
1385 | } |
1386 | #undef harko |
1387 | |
1388 | void EmLoop(void) |
1389 | { |
1390 | for(;;) |
1391 | { |
1392 | ApplyPeriodicCheats(); |
1393 | X6502_Run(256+85); |
1394 | |
1395 | PPU[2]|=0x80; |
1396 | PPU[3]=PPUSPL=0; /* Not sure if this is correct. According |
1397 | to Matt Conte and my own tests, it is. Timing is probably |
1398 | off, though. NOTE: Not having this here |
1399 | breaks a Super Donkey Kong game. */ |
1400 | |
1401 | X6502_Run(12); /* I need to figure out the true nature and length |
1402 | of this delay. |
1403 | */ |
1404 | if(FCEUGameInfo.type==GIT_NSF) |
1405 | TriggerNMINSF(); |
1406 | else if(VBlankON) |
1407 | TriggerNMI(); |
1408 | |
1409 | X6502_Run((scanlines_per_frame-242)*(256+85)-12); |
1410 | |
1411 | PPU_status&=0x1f; |
1412 | |
1413 | X6502_Run(256); |
1414 | { |
1415 | static int kook=0; |
1416 | if(ScreenON || SpriteON) |
1417 | if(GameHBIRQHook) |
1418 | GameHBIRQHook(); |
1419 | |
1420 | X6502_Run(85-kook); |
1421 | kook=(kook+1)&1; |
1422 | } |
1423 | |
1424 | if(ScreenON || SpriteON) |
1425 | { |
1426 | RefreshAddr=TempAddr; |
1427 | if(PPU_hook) PPU_hook(RefreshAddr&0x3fff); |
1428 | } |
1429 | if(FCEUGameInfo.type==GIT_NSF) |
1430 | X6502_Run((256+85)*240); |
1431 | else |
1432 | { |
1433 | int x,max,maxref; |
1434 | |
1435 | deemp=PPU[1]>>5; |
1436 | for(scanline=0;scanline<240;scanline++) |
1437 | { |
1438 | deempcnt[deemp]++; |
1439 | Thingo(); |
1440 | } |
1441 | for(x=1,max=0,maxref=0;x<7;x++) |
1442 | { |
1443 | if(deempcnt[x]>max) |
1444 | { |
1445 | max=deempcnt[x]; |
1446 | maxref=x; |
1447 | } |
1448 | deempcnt[x]=0; |
1449 | } |
1450 | //FCEU_DispMessage("%2x:%2x:%2x:%2x:%2x:%2x:%2x:%2x %d",deempcnt[0],deempcnt[1],deempcnt[2],deempcnt[3],deempcnt[4],deempcnt[5],deempcnt[6],deempcnt[7],maxref); |
1451 | //memset(deempcnt,0,sizeof(deempcnt)); |
1452 | SetNESDeemph(maxref,0); |
1453 | } |
1454 | |
1455 | { |
1456 | int ssize; |
1457 | |
1458 | ssize=FlushEmulateSound(); |
1459 | |
1460 | #ifdef FRAMESKIP |
1461 | if(FSkip) |
1462 | { |
1463 | FCEU_PutImageDummy(); |
1464 | FSkip--; |
1465 | FCEUD_Update(0,WaveFinal,ssize); |
1466 | } |
1467 | else |
1468 | #endif |
1469 | { |
1470 | FCEU_PutImage(); |
1471 | FCEUD_Update(XBuf+8,WaveFinal,ssize); |
1472 | } |
1473 | UpdateInput(); |
1474 | } |
1475 | |
1476 | if(Exit) |
1477 | { |
1478 | CloseGame(); |
1479 | break; |
1480 | } |
1481 | |
1482 | } |
1483 | } |
1484 | |
1485 | #ifdef FPS |
1486 | #include <sys/time.h> |
1487 | uint64 frcount; |
1488 | #endif |
1489 | void FCEUI_Emulate(void) |
1490 | { |
1491 | #ifdef FPS |
1492 | uint64 starttime,end; |
1493 | struct timeval tv; |
1494 | frcount=0; |
1495 | gettimeofday(&tv,0); |
1496 | starttime=((uint64)tv.tv_sec*1000000)+tv.tv_usec; |
1497 | #endif |
1498 | EmLoop(); |
1499 | |
1500 | #ifdef FPS |
1501 | // Probably won't work well on Windows port; for |
1502 | // debugging/speed testing. |
1503 | { |
1504 | uint64 w; |
1505 | int i,frac; |
1506 | gettimeofday(&tv,0); |
1507 | end=((uint64)tv.tv_sec*1000000)+tv.tv_usec; |
1508 | w=frcount*10000000000LL/(end-starttime); |
1509 | i=w/10000; |
1510 | frac=w-i*10000; |
1511 | printf("Average FPS: %d.%04d\n",i,frac); |
1512 | } |
1513 | #endif |
1514 | |
1515 | } |
1516 | |
1517 | void FCEUI_CloseGame(void) |
1518 | { |
1519 | Exit=1; |
1520 | } |
1521 | |
1522 | static void ResetPPU(void) |
1523 | { |
1524 | VRAMBuffer=PPU[0]=PPU[1]=PPU[2]=PPU[3]=0; |
1525 | PPUSPL=0; |
1526 | PPUGenLatch=0; |
1527 | RefreshAddr=TempAddr=0; |
1528 | vtoggle = 0; |
1529 | } |
1530 | |
1531 | static void PowerPPU(void) |
1532 | { |
1533 | memset(NTARAM,0x00,0x800); |
1534 | memset(PALRAM,0x00,0x20); |
1535 | memset(SPRAM,0x00,0x100); |
1536 | ResetPPU(); |
1537 | } |
1538 | |
1539 | void ResetNES(void) |
1540 | { |
1541 | if(!GameLoaded || (FCEUGameInfo.type==GIT_NSF)) return; |
1542 | GameInterface(GI_RESETM2); |
1543 | ResetSound(); |
1544 | ResetPPU(); |
1545 | X6502_Reset(); |
1546 | } |
1547 | |
1548 | void PowerNES(void) |
1549 | { |
1550 | if(!GameLoaded) return; |
1551 | |
1552 | FCEU_CheatResetRAM(); |
1553 | FCEU_CheatAddRAM(2,0,RAM); |
1554 | |
1555 | GeniePower(); |
1556 | |
1557 | memset(RAM,0x00,0x800); |
1558 | ResetMapping(); |
1559 | GameInterface(GI_POWER); |
1560 | PowerSound(); |
1561 | PowerPPU(); |
1562 | timestampbase=0; |
1563 | X6502_Power(); |
1564 | } |
1565 | |