c62d2810 |
1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
15300263 |
4 | * Copyright (C) 1998 BERO |
c62d2810 |
5 | * Copyright (C) 2002 Ben Parnell |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify |
8 | * it under the terms of the GNU General Public License as published by |
9 | * the Free Software Foundation; either version 2 of the License, or |
10 | * (at your option) any later version. |
11 | * |
12 | * This program is distributed in the hope that it will be useful, |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * GNU General Public License for more details. |
16 | * |
17 | * You should have received a copy of the GNU General Public License |
18 | * along with this program; if not, write to the Free Software |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
20 | */ |
21 | |
22 | #include <string.h> |
23 | #include <stdio.h> |
24 | #include <stdlib.h> |
25 | |
26 | #include "types.h" |
27 | #include "x6502.h" |
28 | #include "fce.h" |
29 | #include "sound.h" |
30 | #include "svga.h" |
31 | #include "netplay.h" |
32 | #include "general.h" |
33 | #include "endian.h" |
34 | #include "version.h" |
35 | #include "memory.h" |
36 | |
37 | #include "cart.h" |
38 | #include "nsf.h" |
39 | #include "fds.h" |
40 | #include "ines.h" |
41 | #include "unif.h" |
42 | #include "cheat.h" |
43 | |
44 | #include "state.h" |
45 | #include "video.h" |
46 | #include "input.h" |
47 | #include "file.h" |
48 | #include "crc32.h" |
5232c20c |
49 | #include "ppu.h" |
c62d2810 |
50 | |
92764e62 |
51 | #include "palette.h" |
5a2aa426 |
52 | #include "movie.h" |
53 | |
4fdfab07 |
54 | #include "dprintf.h" |
55 | |
6587f346 |
56 | #ifdef GP2X |
57 | #include "drivers/gp2x/asmutils.h" |
58 | #endif |
59 | |
c62d2810 |
60 | #define Pal (PALRAM) |
61 | |
5232c20c |
62 | |
4a1bf31b |
63 | static void (*RefreshLine)(uint8 *P, uint32 vofs) = NULL; |
c62d2810 |
64 | static void PRefreshLine(void); |
5232c20c |
65 | |
c62d2810 |
66 | static void ResetPPU(void); |
67 | static void PowerPPU(void); |
68 | |
69 | uint64 timestampbase=0; |
70 | |
4fdfab07 |
71 | static int ppudead=1; |
72 | static int kook=0; |
73 | |
c62d2810 |
74 | int MMC5Hack; |
75 | uint32 MMC5HackVROMMask; |
76 | uint8 *MMC5HackExNTARAMPtr; |
77 | uint8 *MMC5HackVROMPTR; |
15300263 |
78 | uint8 MMC5HackCHRMode=0; |
c62d2810 |
79 | uint8 MMC5HackSPMode; |
80 | uint8 MMC5HackSPScroll; |
81 | uint8 MMC5HackSPPage; |
82 | |
83 | uint8 *MMC5SPRVPage[8]; |
84 | uint8 *MMC5BGVPage[8]; |
85 | |
86 | |
87 | uint8 VRAMBuffer,PPUGenLatch; |
88 | |
89 | uint8 *vnapage[4]; |
90 | uint8 PPUNTARAM; |
91 | uint8 PPUCHRRAM; |
92 | |
93 | /* Color deemphasis emulation. Joy... */ |
94 | static uint8 deemp=0; |
95 | static int deempcnt[8]; |
96 | |
5232c20c |
97 | int tosprite=256; |
c62d2810 |
98 | |
99 | FCEUGI FCEUGameInfo; |
100 | void (*GameInterface)(int h); |
101 | |
102 | void FP_FASTAPASS(1) (*PPU_hook)(uint32 A); |
103 | |
104 | void (*GameStateRestore)(int version); |
d97315ac |
105 | void (*GameHBIRQHook)(void), (*GameHBIRQHook2)(void); |
c62d2810 |
106 | |
107 | readfunc ARead[0x10000]; |
108 | writefunc BWrite[0x10000]; |
109 | static readfunc *AReadG; |
110 | static writefunc *BWriteG; |
111 | static int RWWrap=0; |
112 | |
92e249b1 |
113 | #ifdef ASM_6502 |
114 | static void asmcpu_update(int32 cycles) |
115 | { |
92e249b1 |
116 | // some code from x6502.c |
117 | fhcnt-=cycles; |
118 | if(fhcnt<=0) |
119 | { |
120 | FrameSoundUpdate(); |
121 | fhcnt+=fhinc; |
122 | } |
123 | |
124 | if(PCMIRQCount>0) |
125 | { |
126 | PCMIRQCount-=cycles; |
127 | if(PCMIRQCount<=0) |
128 | { |
129 | vdis=1; |
130 | if((PSG[0x10]&0x80) && !(PSG[0x10]&0x40)) |
131 | { |
132 | extern uint8 SIRQStat; |
133 | SIRQStat|=0x80; |
134 | X6502_IRQBegin(FCEU_IQDPCM); |
135 | } |
136 | } |
137 | } |
138 | } |
139 | |
140 | void asmcpu_unpack(void) |
141 | { |
142 | nes_registers[0] = X.A << 24; |
143 | nes_registers[1] = X.X; |
144 | nes_registers[2] = X.Y; |
145 | pc_base = 0; |
146 | nes_registers[3] = X.PC; |
c0bf6f9f |
147 | X6502_Rebase_a(); |
92e249b1 |
148 | nes_registers[4] = X.S << 24; |
149 | nes_registers[4]|= X.IRQlow << 8; |
8fa5eb33 |
150 | nes_registers[7] = (uint32)X.count << 16; |
92e249b1 |
151 | |
152 | // NVUB DIZC |
153 | nes_registers[4]|= X.P & 0x5d; |
154 | nes_registers[5] = X.P << 24; // N |
155 | if (!(X.P&0x02)) nes_registers[5] |= 1; // Z |
156 | } |
157 | |
158 | void asmcpu_pack(void) |
159 | { |
160 | X.A = nes_registers[0] >> 24; |
161 | X.X = nes_registers[1]; |
162 | X.Y = nes_registers[2]; |
163 | X.PC= nes_registers[3] - pc_base; |
164 | X.S = nes_registers[4] >> 24; |
165 | X.IRQlow = nes_registers[4] >> 8; |
8fa5eb33 |
166 | X.count = (int32) nes_registers[7] >> 16; |
92e249b1 |
167 | |
168 | // NVUB DIZC |
169 | X.P = nes_registers[4] & 0x5d; |
170 | if ( nes_registers[5]&0x80000000) X.P |= 0x80; // N |
171 | if (!(nes_registers[5]&0x000000ff)) X.P |= 0x02; // Z |
172 | } |
173 | #endif |
174 | |
c62d2810 |
175 | DECLFW(BNull) |
176 | { |
177 | |
178 | } |
179 | |
180 | DECLFR(ANull) |
181 | { |
182 | return(X.DB); |
183 | } |
184 | |
185 | int AllocGenieRW(void) |
186 | { |
187 | if(!(AReadG=FCEU_malloc(0x8000*sizeof(readfunc)))) |
188 | return 0; |
189 | if(!(BWriteG=FCEU_malloc(0x8000*sizeof(writefunc)))) |
190 | return 0; |
191 | RWWrap=1; |
192 | return 1; |
193 | } |
194 | |
195 | void FlushGenieRW(void) |
196 | { |
197 | int32 x; |
198 | |
199 | if(RWWrap) |
200 | { |
201 | for(x=0;x<0x8000;x++) |
202 | { |
203 | ARead[x+0x8000]=AReadG[x]; |
204 | BWrite[x+0x8000]=BWriteG[x]; |
205 | } |
b8da43fb |
206 | #ifdef ASM_6502 |
207 | GenieSetPages(1); |
208 | #endif |
c62d2810 |
209 | free(AReadG); |
210 | free(BWriteG); |
211 | AReadG=0; |
212 | BWriteG=0; |
213 | RWWrap=0; |
214 | } |
215 | } |
216 | |
217 | readfunc FASTAPASS(1) GetReadHandler(int32 a) |
218 | { |
219 | if(a>=0x8000 && RWWrap) |
220 | return AReadG[a-0x8000]; |
221 | else |
222 | return ARead[a]; |
223 | } |
224 | |
225 | void FASTAPASS(3) SetReadHandler(int32 start, int32 end, readfunc func) |
226 | { |
227 | int32 x; |
228 | |
229 | if(!func) |
230 | func=ANull; |
231 | |
232 | if(RWWrap) |
233 | for(x=end;x>=start;x--) |
234 | { |
235 | if(x>=0x8000) |
236 | AReadG[x-0x8000]=func; |
237 | else |
238 | ARead[x]=func; |
239 | } |
240 | else |
241 | |
242 | for(x=end;x>=start;x--) |
243 | ARead[x]=func; |
244 | } |
245 | |
246 | writefunc FASTAPASS(1) GetWriteHandler(int32 a) |
247 | { |
248 | if(RWWrap && a>=0x8000) |
249 | return BWriteG[a-0x8000]; |
250 | else |
251 | return BWrite[a]; |
252 | } |
253 | |
254 | void FASTAPASS(3) SetWriteHandler(int32 start, int32 end, writefunc func) |
255 | { |
256 | int32 x; |
257 | |
258 | if(!func) |
259 | func=BNull; |
260 | |
261 | if(RWWrap) |
262 | for(x=end;x>=start;x--) |
263 | { |
264 | if(x>=0x8000) |
265 | BWriteG[x-0x8000]=func; |
266 | else |
267 | BWrite[x]=func; |
268 | } |
269 | else |
270 | for(x=end;x>=start;x--) |
271 | BWrite[x]=func; |
272 | } |
273 | |
274 | uint8 vtoggle=0; |
275 | uint8 XOffset=0; |
276 | |
277 | uint32 TempAddr,RefreshAddr; |
278 | |
c62d2810 |
279 | |
280 | /* scanline is equal to the current visible scanline we're on. */ |
281 | |
282 | int scanline; |
c62d2810 |
283 | |
9115e7d2 |
284 | uint8 GameMemBlock[131072] __attribute__ ((aligned (4))); |
285 | uint8 NTARAM[0x800] __attribute__ ((aligned (4))); |
286 | uint8 PALRAM[0x20] __attribute__ ((aligned (4))); |
92e249b1 |
287 | #if !defined(ASM_6502) || defined(DEBUG_ASM_6502) |
9115e7d2 |
288 | uint8 RAM[0x800] __attribute__ ((aligned (4))); |
af32b6c2 |
289 | #endif |
9115e7d2 |
290 | |
c62d2810 |
291 | uint8 PPU[4]; |
292 | uint8 PPUSPL; |
293 | |
c62d2810 |
294 | uint8 PAL=0; |
295 | |
5232c20c |
296 | |
c62d2810 |
297 | #define MMC5BGVRAMADR(V) &MMC5BGVPage[(V)>>10][(V)] |
298 | #define VRAMADR(V) &VPage[(V)>>10][(V)] |
15300263 |
299 | |
4fdfab07 |
300 | static int linestartts; |
301 | static int tofix=0; |
302 | |
303 | static void ResetRL(void) |
304 | { |
305 | linestartts=timestamp*48+X6502_GetCycleCount(); |
306 | tofix=1; |
307 | } |
308 | |
309 | static INLINE void Fixit1(void); |
310 | |
311 | static void TryFixit1(void) |
312 | { |
313 | #define TOFIXNUM (272-0x4) |
314 | int lastpixel; |
315 | |
316 | if (scanline < 240 && tofix) |
317 | { |
318 | lastpixel = (timestamp*48-linestartts)>>4; |
319 | if (PAL) lastpixel += lastpixel>>4; |
320 | |
321 | //printf("lastpixel: %i\n", lastpixel); |
322 | |
323 | if(lastpixel>=TOFIXNUM) |
324 | { |
325 | Fixit1(); |
326 | tofix=0; |
327 | } |
328 | } |
329 | } |
330 | |
331 | |
c62d2810 |
332 | static DECLFW(BRAML) |
15300263 |
333 | { |
c62d2810 |
334 | RAM[A]=V; |
335 | } |
336 | |
337 | static DECLFW(BRAMH) |
338 | { |
339 | RAM[A&0x7FF]=V; |
340 | } |
341 | |
342 | static DECLFR(ARAML) |
343 | { |
344 | return RAM[A]; |
345 | } |
346 | |
347 | static DECLFR(ARAMH) |
348 | { |
349 | return RAM[A&0x7FF]; |
350 | } |
351 | |
15300263 |
352 | |
c62d2810 |
353 | static DECLFR(A2002) |
354 | { |
4fdfab07 |
355 | /* merged */ |
c62d2810 |
356 | uint8 ret; |
4fdfab07 |
357 | |
358 | TryFixit1(); |
c62d2810 |
359 | ret = PPU_status; |
4fdfab07 |
360 | ret|=PPUGenLatch&0x1F; |
c62d2810 |
361 | vtoggle=0; |
362 | PPU_status&=0x7F; |
4fdfab07 |
363 | PPUGenLatch=ret; |
ea80a45b |
364 | //dprintf("r [2002] %02x",ret); |
4fdfab07 |
365 | return ret; |
c62d2810 |
366 | } |
367 | |
368 | static DECLFR(A200x) |
369 | { |
4fdfab07 |
370 | /* merged */ |
371 | TryFixit1(); |
c62d2810 |
372 | return PPUGenLatch; |
373 | } |
374 | |
375 | static DECLFR(A2007) |
376 | { |
4fdfab07 |
377 | /* merged */ |
c62d2810 |
378 | uint8 ret; |
379 | uint32 tmp=RefreshAddr&0x3FFF; |
380 | |
4fdfab07 |
381 | TryFixit1(); |
382 | |
383 | ret=VRAMBuffer; |
384 | |
c62d2810 |
385 | if(PPU_hook) PPU_hook(tmp); |
4fdfab07 |
386 | PPUGenLatch=VRAMBuffer; |
15300263 |
387 | if(tmp<0x2000) |
c62d2810 |
388 | { |
389 | VRAMBuffer=VPage[tmp>>10][tmp]; |
390 | } |
15300263 |
391 | else |
c62d2810 |
392 | { |
393 | VRAMBuffer=vnapage[(tmp>>10)&0x3][tmp&0x3FF]; |
394 | } |
395 | |
396 | if (INC32) RefreshAddr+=32; |
397 | else RefreshAddr++; |
398 | if(PPU_hook) PPU_hook(RefreshAddr&0x3fff); |
4fdfab07 |
399 | dprintf("r [2007] %02x",ret); |
c62d2810 |
400 | return ret; |
401 | } |
402 | |
403 | static DECLFW(B2000) |
404 | { |
4fdfab07 |
405 | /* NMI2? */ |
406 | TryFixit1(); |
c62d2810 |
407 | PPUGenLatch=V; |
408 | PPU[0]=V; |
409 | TempAddr&=0xF3FF; |
410 | TempAddr|=(V&3)<<10; |
411 | } |
412 | |
413 | static DECLFW(B2001) |
414 | { |
4fdfab07 |
415 | /* merged */ |
416 | TryFixit1(); |
c62d2810 |
417 | PPUGenLatch=V; |
418 | PPU[1]=V; |
419 | if(V&0xE0) |
420 | deemp=V>>5; |
421 | //printf("$%04x:$%02x, %d\n",X.PC,V,scanline); |
422 | } |
423 | |
424 | static DECLFW(B2002) |
425 | { |
4fdfab07 |
426 | /* merged */ |
c62d2810 |
427 | PPUGenLatch=V; |
428 | } |
429 | |
430 | static DECLFW(B2003) |
431 | { |
4fdfab07 |
432 | /* merged */ |
c62d2810 |
433 | PPUGenLatch=V; |
434 | PPU[3]=V; |
435 | PPUSPL=V&0x7; |
436 | } |
437 | |
438 | static DECLFW(B2004) |
439 | { |
4fdfab07 |
440 | /* merged */ |
c62d2810 |
441 | PPUGenLatch=V; |
4fdfab07 |
442 | if(PPUSPL>=8) |
c62d2810 |
443 | { |
444 | if(PPU[3]>=8) |
445 | SPRAM[PPU[3]]=V; |
446 | } |
447 | else |
448 | { |
449 | //printf("$%02x:$%02x\n",PPUSPL,V); |
450 | SPRAM[PPUSPL]=V; |
c62d2810 |
451 | } |
452 | PPU[3]++; |
4fdfab07 |
453 | PPUSPL++; |
5232c20c |
454 | |
c62d2810 |
455 | } |
456 | |
457 | static DECLFW(B2005) |
458 | { |
4fdfab07 |
459 | /* merged */ |
c62d2810 |
460 | uint32 tmp=TempAddr; |
4fdfab07 |
461 | TryFixit1(); |
c62d2810 |
462 | PPUGenLatch=V; |
463 | if (!vtoggle) |
464 | { |
465 | tmp&=0xFFE0; |
466 | tmp|=V>>3; |
467 | XOffset=V&7; |
468 | } |
469 | else |
470 | { |
471 | tmp&=0x8C1F; |
472 | tmp|=((V&~0x7)<<2); |
473 | tmp|=(V&7)<<12; |
474 | } |
475 | |
476 | TempAddr=tmp; |
477 | vtoggle^=1; |
478 | } |
479 | |
480 | static DECLFW(B2006) |
481 | { |
4fdfab07 |
482 | /* merged */ |
483 | TryFixit1(); |
484 | |
c62d2810 |
485 | PPUGenLatch=V; |
486 | if(!vtoggle) |
487 | { |
488 | TempAddr&=0x00FF; |
489 | TempAddr|=(V&0x3f)<<8; |
490 | } |
491 | else |
492 | { |
493 | TempAddr&=0xFF00; |
494 | TempAddr|=V; |
c62d2810 |
495 | |
4fdfab07 |
496 | RefreshAddr=TempAddr; |
c62d2810 |
497 | if(PPU_hook) |
498 | PPU_hook(RefreshAddr); |
499 | } |
500 | vtoggle^=1; |
501 | } |
502 | |
503 | static DECLFW(B2007) |
15300263 |
504 | { |
4fdfab07 |
505 | /* merged */ |
c62d2810 |
506 | uint32 tmp=RefreshAddr&0x3FFF; |
c62d2810 |
507 | PPUGenLatch=V; |
508 | if(tmp>=0x3F00) |
509 | { |
4fdfab07 |
510 | // hmmm.... |
511 | if(!(tmp&0xf)) |
512 | PALRAM[0x00]=PALRAM[0x04]=PALRAM[0x08]=PALRAM[0x0C]=V&0x3f; |
513 | else if(tmp&3) PALRAM[(tmp&0x1f)]=V&0x3f; |
c62d2810 |
514 | } |
515 | else if(tmp<0x2000) |
516 | { |
517 | if(PPUCHRRAM&(1<<(tmp>>10))) |
518 | VPage[tmp>>10][tmp]=V; |
519 | } |
520 | else |
15300263 |
521 | { |
c62d2810 |
522 | if(PPUNTARAM&(1<<((tmp&0xF00)>>10))) |
523 | vnapage[((tmp&0xF00)>>10)][tmp&0x3FF]=V; |
524 | } |
525 | if (INC32) RefreshAddr+=32; |
526 | else RefreshAddr++; |
527 | if(PPU_hook) PPU_hook(RefreshAddr&0x3fff); |
528 | } |
529 | |
530 | static DECLFW(B4014) |
15300263 |
531 | { |
c62d2810 |
532 | uint32 t=V<<8; |
533 | int x; |
4fdfab07 |
534 | |
c62d2810 |
535 | for(x=0;x<256;x++) |
536 | B2004(0x2004,X.DB=ARead[t+x](t+x)); |
537 | X6502_AddCycles(512); |
538 | } |
539 | |
5232c20c |
540 | void BGRender(uint8 *target) |
c62d2810 |
541 | { |
4a1bf31b |
542 | uint32 tem, vofs; |
543 | vofs=((PPU[0]&0x10)<<8) | ((RefreshAddr>>12)&7); |
544 | |
545 | Pal[0]|=64; |
546 | Pal[4]|=64; |
547 | Pal[8]|=64; |
548 | Pal[0xC]|=64; |
549 | RefreshLine(target-XOffset, vofs); |
550 | Pal[0]&=63; |
551 | Pal[4]&=63; |
552 | Pal[8]&=63; |
553 | Pal[0xC]&=63; |
554 | |
c62d2810 |
555 | if(!(PPU[1]&2)) |
556 | { |
9115e7d2 |
557 | tem=Pal[0]|0x40; |
558 | tem|=tem<<8; |
559 | tem|=tem<<16; |
c62d2810 |
560 | *(uint32 *)target=*(uint32 *)(target+4)=tem; |
561 | } |
562 | } |
563 | |
564 | #ifdef FRAMESKIP |
5232c20c |
565 | int FSkip=0; |
c62d2810 |
566 | void FCEUI_FrameSkip(int x) |
567 | { |
568 | FSkip=x; |
569 | } |
570 | #endif |
571 | |
572 | /* This is called at the beginning of each visible scanline */ |
573 | static void Loop6502(void) |
574 | { |
575 | uint32 tem; |
576 | int x; |
937bf65b |
577 | uint8 *target=XBuf+scanline*320+32; |
c62d2810 |
578 | |
579 | if(ScreenON || SpriteON) |
580 | { |
581 | /* PRefreshLine() will not get called on skipped frames. This |
582 | could cause a problem, but the solution would be rather complex, |
583 | due to the current sprite 0 hit code. |
584 | */ |
585 | #ifdef FRAMESKIP |
586 | if(!FSkip) |
587 | { |
588 | #endif |
589 | if(ScreenON) |
590 | { |
0b65fdb3 |
591 | if(scanline>=FSettings.FirstSLine && scanline<=FSettings.LastSLine) |
c62d2810 |
592 | BGRender(target); |
593 | else |
594 | { |
595 | if(PPU_hook) |
596 | PRefreshLine(); |
597 | } |
598 | } |
599 | else |
600 | { |
601 | tem=Pal[0]|(Pal[0]<<8)|(Pal[0]<<16)|(Pal[0]<<24); |
602 | tem|=0x40404040; |
603 | FCEU_dwmemset(target,tem,264); |
604 | } |
605 | #ifdef FRAMESKIP |
606 | } |
607 | #endif |
608 | if (SpriteON && scanline) |
609 | RefreshSprite(target); |
610 | #ifdef FRAMESKIP |
611 | if(!FSkip) |
612 | { |
613 | #endif |
614 | if(PPU[1]&0x01) |
15300263 |
615 | { |
c62d2810 |
616 | for(x=63;x>=0;x--) |
937bf65b |
617 | ((uint32 *)target)[x]=((uint32*)target)[x]&0xF0F0F0F0; |
c62d2810 |
618 | } |
6587f346 |
619 | #ifdef GP2X |
620 | if((PPU[1]>>5)==0x7) block_or(target, 256, 0xc0); |
621 | else if(PPU[1]&0xE0) block_andor(target, 256, 0x3f, 0x40); |
622 | else block_andor(target, 256, 0x3f, 0x80); |
623 | #else |
c62d2810 |
624 | if((PPU[1]>>5)==0x7) |
625 | for(x=63;x>=0;x--) |
6587f346 |
626 | ((uint32 *)target)[x]=(((uint32*)target)[x])|0xc0c0c0c0; |
c62d2810 |
627 | else if(PPU[1]&0xE0) |
628 | for(x=63;x>=0;x--) |
6587f346 |
629 | ((uint32 *)target)[x]=(((uint32*)target)[x]&0x3f3f3f3f)|0x40404040; |
c62d2810 |
630 | else |
631 | for(x=63;x>=0;x--) |
6587f346 |
632 | ((uint32 *)target)[x]=(((uint32*)target)[x]&0x3f3f3f3f)|0x80808080; |
633 | #endif |
634 | // black borders |
635 | ((uint32 *)target)[-2]=((uint32 *)target)[-1]=0; |
636 | ((uint32 *)target)[64]=((uint32 *)target)[65]=0; |
c62d2810 |
637 | #ifdef FRAMESKIP |
638 | } |
639 | #endif |
640 | } |
641 | else |
642 | { |
643 | tem=Pal[0]|(Pal[0]<<8)|(Pal[0]<<16)|(Pal[0]<<24); |
644 | FCEU_dwmemset(target,tem,256); |
15300263 |
645 | } |
c62d2810 |
646 | if(InputScanlineHook) |
647 | InputScanlineHook(target, scanline); |
648 | } |
649 | |
650 | #define PAL(c) ((c)+cc) |
651 | |
652 | |
653 | static void PRefreshLine(void) |
654 | { |
655 | uint32 vofs; |
656 | uint8 X1; |
657 | |
658 | vofs = 0; |
659 | if (BGAdrHI) vofs = 0x1000; |
660 | |
661 | vofs+=(RefreshAddr>>12)&7; |
662 | |
663 | for(X1=33;X1;X1--) |
664 | { |
665 | register uint8 no; |
666 | register uint8 zz2; |
667 | zz2=(uint8)((RefreshAddr>>10)&3); |
668 | PPU_hook(0x2000|(RefreshAddr&0xFFF)); |
669 | no = vnapage[zz2][(RefreshAddr&0x3ff)]; |
670 | PPU_hook((no<<4)+vofs); |
671 | if((RefreshAddr&0x1f)==0x1f) |
672 | RefreshAddr^=0x41F; |
673 | else |
674 | RefreshAddr++; |
675 | } |
676 | } |
677 | |
4a1bf31b |
678 | /* This high-level graphics MMC5 emulation code was written |
679 | for MMC5 carts in "CL" mode. It's probably not totally |
680 | correct for carts in "SL" mode. |
681 | */ |
682 | static void RefreshLine_MMC5Hack1(uint8 *P, uint32 vofs) |
c62d2810 |
683 | { |
4a1bf31b |
684 | int8 tochange, X1; |
c62d2810 |
685 | |
686 | tochange=MMC5HackSPMode&0x1F; |
687 | |
688 | for(X1=33;X1;X1--,P+=8) |
689 | { |
690 | uint8 *C; |
5232c20c |
691 | uint8 cc,zz,zz2; |
c62d2810 |
692 | uint32 vadr; |
693 | |
15300263 |
694 | if((tochange<=0 && MMC5HackSPMode&0x40) || |
c62d2810 |
695 | (tochange>0 && !(MMC5HackSPMode&0x40))) |
696 | { |
697 | uint8 xs,ys; |
698 | |
15300263 |
699 | xs=33-X1; |
c62d2810 |
700 | ys=((scanline>>3)+MMC5HackSPScroll)&0x1F; |
701 | if(ys>=0x1E) ys-=0x1E; |
702 | vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7); |
703 | |
704 | C = MMC5HackVROMPTR+vadr; |
705 | C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12); |
706 | |
707 | cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)]; |
708 | cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2; |
709 | } |
710 | else |
711 | { |
712 | zz=RefreshAddr&0x1F; |
713 | zz2=(RefreshAddr>>10)&3; |
714 | vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs; |
715 | C = MMC5BGVRAMADR(vadr); |
716 | cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)]; |
717 | cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2; |
718 | } |
719 | #include "fceline.h" |
720 | |
721 | if((RefreshAddr&0x1f)==0x1f) |
722 | RefreshAddr^=0x41F; |
723 | else |
724 | RefreshAddr++; |
725 | tochange--; |
726 | } |
4a1bf31b |
727 | } |
728 | |
729 | static void RefreshLine_MMC5Hack2(uint8 *P, uint32 vofs) |
730 | { |
731 | int8 tochange, X1; |
c62d2810 |
732 | |
733 | tochange=MMC5HackSPMode&0x1F; |
734 | |
735 | for(X1=33;X1;X1--,P+=8) |
736 | { |
737 | uint8 *C; |
5232c20c |
738 | uint8 cc; |
739 | uint8 zz2; |
c62d2810 |
740 | uint32 vadr; |
741 | |
742 | if((tochange<=0 && MMC5HackSPMode&0x40) || |
743 | (tochange>0 && !(MMC5HackSPMode&0x40))) |
744 | { |
745 | uint8 xs,ys; |
746 | |
15300263 |
747 | xs=33-X1; |
c62d2810 |
748 | ys=((scanline>>3)+MMC5HackSPScroll)&0x1F; |
749 | if(ys>=0x1E) ys-=0x1E; |
750 | vadr=(MMC5HackExNTARAMPtr[xs|(ys<<5)]<<4)+(vofs&7); |
751 | |
752 | C = MMC5HackVROMPTR+vadr; |
753 | C += ((MMC5HackSPPage & 0x3f & MMC5HackVROMMask) << 12); |
754 | |
755 | cc=MMC5HackExNTARAMPtr[0x3c0+(xs>>2)+((ys&0x1C)<<1)]; |
756 | cc=((cc >> ((xs&2) + ((ys&0x2)<<1))) &3) <<2; |
757 | } |
758 | else |
759 | { |
760 | C=MMC5HackVROMPTR; |
761 | zz2=(RefreshAddr>>10)&3; |
762 | vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs; |
763 | C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f & |
764 | MMC5HackVROMMask) << 12) + (vadr & 0xfff); |
765 | vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4; |
766 | cc = vadr; |
767 | } |
768 | #include "fceline.h" |
769 | if((RefreshAddr&0x1f)==0x1f) |
770 | RefreshAddr^=0x41F; |
771 | else |
772 | RefreshAddr++; |
773 | tochange--; |
774 | } |
4a1bf31b |
775 | } |
776 | |
777 | static void RefreshLine_MMC5Hack3(uint8 *P, uint32 vofs) |
778 | { |
779 | int8 X1; |
c62d2810 |
780 | |
c62d2810 |
781 | for(X1=33;X1;X1--,P+=8) |
782 | { |
15300263 |
783 | uint8 *C; |
5232c20c |
784 | uint8 cc; |
785 | uint8 zz2; |
15300263 |
786 | uint32 vadr; |
c62d2810 |
787 | |
788 | C=MMC5HackVROMPTR; |
789 | zz2=(RefreshAddr>>10)&3; |
790 | vadr = (vnapage[zz2][RefreshAddr & 0x3ff] << 4) + vofs; |
15300263 |
791 | C += (((MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff]) & 0x3f & |
c62d2810 |
792 | MMC5HackVROMMask) << 12) + (vadr & 0xfff); |
793 | vadr = (MMC5HackExNTARAMPtr[RefreshAddr & 0x3ff] & 0xC0)>> 4; |
794 | cc = vadr; |
795 | |
796 | #include "fceline.h" |
797 | if((RefreshAddr&0x1f)==0x1f) |
798 | RefreshAddr^=0x41F; |
799 | else |
800 | RefreshAddr++; |
801 | } |
4a1bf31b |
802 | } |
803 | |
804 | static void RefreshLine_MMC5Hack4(uint8 *P, uint32 vofs) |
805 | { |
806 | int8 X1; |
807 | |
c62d2810 |
808 | for(X1=33;X1;X1--,P+=8) |
809 | { |
810 | uint8 *C; |
5232c20c |
811 | uint8 cc,zz,zz2; |
c62d2810 |
812 | uint32 vadr; |
813 | |
814 | zz=RefreshAddr&0x1F; |
815 | zz2=(RefreshAddr>>10)&3; |
816 | vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs; |
817 | C = MMC5BGVRAMADR(vadr); |
818 | cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)]; |
819 | cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2; |
820 | |
821 | #include "fceline.h" |
15300263 |
822 | |
c62d2810 |
823 | if((RefreshAddr&0x1f)==0x1f) |
824 | RefreshAddr^=0x41F; |
825 | else |
826 | RefreshAddr++; |
15300263 |
827 | } |
4a1bf31b |
828 | } |
829 | |
830 | static void RefreshLine_PPU_hook(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,zz,zz2; |
15300263 |
838 | uint32 vadr; |
c62d2810 |
839 | |
840 | zz=RefreshAddr&0x1F; |
841 | zz2=(RefreshAddr>>10)&3; |
842 | PPU_hook(0x2000|(RefreshAddr&0xFFF)); |
843 | cc=vnapage[zz2][0x3c0+(zz>>2)+((RefreshAddr&0x380)>>4)]; |
844 | cc=((cc >> ((zz&2) + ((RefreshAddr&0x40)>>4))) &3) <<2; |
845 | vadr=(vnapage[zz2][RefreshAddr&0x3ff]<<4)+vofs; |
846 | C = VRAMADR(vadr); |
847 | |
848 | #include "fceline.h" |
849 | |
850 | PPU_hook(vadr); |
851 | |
852 | if((RefreshAddr&0x1f)==0x1f) |
853 | RefreshAddr^=0x41F; |
854 | else |
855 | RefreshAddr++; |
856 | } |
4a1bf31b |
857 | } |
858 | |
9115e7d2 |
859 | static void RefreshLine_normal(uint8 *P, uint32 vofs) // vofs is 0x107 max |
4a1bf31b |
860 | { |
861 | int8 X1; |
9115e7d2 |
862 | uint32 rfraddr = RefreshAddr; |
863 | uint8 *page = vnapage[(rfraddr>>10)&3]; |
864 | uint32 cc2=0; |
4a1bf31b |
865 | |
9115e7d2 |
866 | if ((rfraddr&0xc)!=0) |
867 | cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0); |
868 | |
869 | for (X1=33;X1;X1--,P+=8) |
c62d2810 |
870 | { |
9115e7d2 |
871 | uint8 cc,*C; |
c62d2810 |
872 | uint32 vadr; |
873 | |
9115e7d2 |
874 | vadr=(page[rfraddr&0x3ff]<<4)+vofs; |
c62d2810 |
875 | C = VRAMADR(vadr); |
9115e7d2 |
876 | if ((rfraddr&0xc)==0) |
877 | cc2=*(uint32 *) (page + ((rfraddr&0x380)>>4) + ((rfraddr&0x10)>>2) + 0x3c0); |
878 | cc=((cc2 >> ((rfraddr&2) + ((rfraddr&0x40)>>4) + ((rfraddr&0xc)<<1))) & 3) << 2; |
4a1bf31b |
879 | |
9115e7d2 |
880 | #include "fceline.h" |
15300263 |
881 | |
9115e7d2 |
882 | if((rfraddr&0x1f)==0x1f) { |
883 | rfraddr^=0x41F; |
884 | page = vnapage[(rfraddr>>10)&3]; |
885 | } else |
886 | rfraddr++; |
c62d2810 |
887 | } |
9115e7d2 |
888 | RefreshAddr = rfraddr; |
4a1bf31b |
889 | } |
c62d2810 |
890 | |
4a1bf31b |
891 | static void SetRefreshLine(void) |
892 | { |
893 | if(MMC5Hack && geniestage!=1) |
894 | { |
895 | if(MMC5HackCHRMode==0 && (MMC5HackSPMode&0x80)) |
896 | { |
897 | if (RefreshLine != RefreshLine_MMC5Hack1) printf("set refr RefreshLine_MMC5Hack1\n"); |
898 | RefreshLine = RefreshLine_MMC5Hack1; |
899 | } |
900 | else if(MMC5HackCHRMode==1 && (MMC5HackSPMode&0x80)) |
901 | { |
902 | if (RefreshLine != RefreshLine_MMC5Hack2) printf("set refr RefreshLine_MMC5Hack2\n"); |
903 | RefreshLine = RefreshLine_MMC5Hack2; |
904 | } |
905 | else if(MMC5HackCHRMode==1) |
906 | { |
907 | if (RefreshLine != RefreshLine_MMC5Hack3) printf("set refr RefreshLine_MMC5Hack3\n"); |
908 | RefreshLine = RefreshLine_MMC5Hack3; |
909 | } |
910 | else |
911 | { |
912 | if (RefreshLine != RefreshLine_MMC5Hack4) printf("set refr RefreshLine_MMC5Hack4\n"); |
913 | RefreshLine = RefreshLine_MMC5Hack4; |
914 | } |
915 | } // End if(MMC5Hack) |
916 | else if(PPU_hook) |
917 | { |
918 | if (RefreshLine != RefreshLine_PPU_hook) printf("set refr RefreshLine_PPU_hook\n"); |
919 | RefreshLine = RefreshLine_PPU_hook; |
920 | } |
921 | else |
922 | { |
923 | if (RefreshLine != RefreshLine_normal) printf("set refr RefreshLine_normal\n"); |
924 | RefreshLine = RefreshLine_normal; |
925 | } |
c62d2810 |
926 | } |
927 | |
4fdfab07 |
928 | static INLINE |
937bf65b |
929 | void Fixit2(void) |
c62d2810 |
930 | { |
931 | if(ScreenON || SpriteON) |
932 | { |
933 | uint32 rad=RefreshAddr; |
934 | rad&=0xFBE0; |
935 | rad|=TempAddr&0x041f; |
936 | RefreshAddr=rad; |
937 | //PPU_hook(RefreshAddr,-1); |
938 | } |
939 | } |
940 | |
4fdfab07 |
941 | static INLINE |
937bf65b |
942 | void Fixit1(void) |
c62d2810 |
943 | { |
944 | if(ScreenON || SpriteON) |
945 | { |
946 | uint32 rad=RefreshAddr; |
947 | |
948 | if((rad&0x7000)==0x7000) |
949 | { |
950 | rad^=0x7000; |
951 | if((rad&0x3E0)==0x3A0) |
952 | { |
953 | rad^=0x3A0; |
954 | rad^=0x800; |
955 | } |
956 | else |
957 | { |
958 | if((rad&0x3E0)==0x3e0) |
959 | rad^=0x3e0; |
960 | else rad+=0x20; |
961 | } |
962 | } |
963 | else |
964 | rad+=0x1000; |
965 | RefreshAddr=rad; |
966 | //PPU_hook(RefreshAddr,-1); |
967 | } |
968 | } |
969 | |
937bf65b |
970 | |
c62d2810 |
971 | /* This is called at the beginning of all h-blanks on visible lines. */ |
972 | static void DoHBlank(void) |
973 | { |
974 | if(ScreenON || SpriteON) |
975 | FetchSpriteData(); |
ea80a45b |
976 | if(GameHBIRQHook && (ScreenON || SpriteON) && ((PPU[0]&0x38)!=0x18)) |
c62d2810 |
977 | { |
4fdfab07 |
978 | X6502_Run(6); |
c62d2810 |
979 | Fixit2(); |
4fdfab07 |
980 | X6502_Run(4); |
981 | GameHBIRQHook(); |
982 | X6502_Run(85-16-10); |
c62d2810 |
983 | } |
984 | else |
985 | { |
4fdfab07 |
986 | X6502_Run(6); // Tried 65, caused problems with Slalom(maybe others) |
c62d2810 |
987 | Fixit2(); |
4fdfab07 |
988 | X6502_Run(85-6-16); |
c62d2810 |
989 | } |
d97315ac |
990 | if(GameHBIRQHook2 && (ScreenON || SpriteON)) |
991 | GameHBIRQHook2(); |
c62d2810 |
992 | //PPU_hook(0,-1); |
993 | //fprintf(stderr,"%3d: $%04x\n",scanline,RefreshAddr); |
4fdfab07 |
994 | scanline++; |
ea80a45b |
995 | if (scanline<240) |
996 | ResetRL(); |
4fdfab07 |
997 | X6502_Run(16); |
c62d2810 |
998 | } |
c62d2810 |
999 | |
c62d2810 |
1000 | |
5232c20c |
1001 | // ============================// |
1002 | // end of new code |
1003 | // ===========================// |
c62d2810 |
1004 | |
1005 | void ResetMapping(void) |
1006 | { |
1007 | int x; |
1008 | |
1009 | SetReadHandler(0x0000,0xFFFF,ANull); |
1010 | SetWriteHandler(0x0000,0xFFFF,BNull); |
1011 | |
1012 | SetReadHandler(0,0x7FF,ARAML); |
1013 | SetWriteHandler(0,0x7FF,BRAML); |
1014 | |
1015 | SetReadHandler(0x800,0x1FFF,ARAMH); /* Part of a little */ |
1016 | SetWriteHandler(0x800,0x1FFF,BRAMH); /* hack for a small speed boost. */ |
1017 | |
1018 | for(x=0x2000;x<0x4000;x+=8) |
1019 | { |
1020 | ARead[x]=A200x; |
1021 | BWrite[x]=B2000; |
1022 | ARead[x+1]=A200x; |
1023 | BWrite[x+1]=B2001; |
1024 | ARead[x+2]=A2002; |
1025 | BWrite[x+2]=B2002; |
1026 | ARead[x+3]=A200x; |
1027 | BWrite[x+3]=B2003; |
1028 | ARead[x+4]=A200x; |
1029 | BWrite[x+4]=B2004; |
1030 | ARead[x+5]=A200x; |
1031 | BWrite[x+5]=B2005; |
1032 | ARead[x+6]=A200x; |
1033 | BWrite[x+6]=B2006; |
1034 | ARead[x+7]=A2007; |
1035 | BWrite[x+7]=B2007; |
1036 | } |
1037 | |
1038 | BWrite[0x4014]=B4014; |
1039 | SetNESSoundMap(); |
1040 | InitializeInput(); |
1041 | } |
1042 | |
1043 | int GameLoaded=0; |
1044 | void CloseGame(void) |
1045 | { |
1046 | if(GameLoaded) |
1047 | { |
1048 | if(FCEUGameInfo.type!=GIT_NSF) |
92764e62 |
1049 | FCEU_FlushGameCheats(0,0); |
c62d2810 |
1050 | #ifdef NETWORK |
1051 | if(FSettings.NetworkPlay) KillNetplay(); |
15300263 |
1052 | #endif |
c62d2810 |
1053 | GameInterface(GI_CLOSE); |
1054 | CloseGenie(); |
1055 | GameLoaded=0; |
1056 | } |
1057 | } |
1058 | |
1059 | void ResetGameLoaded(void) |
1060 | { |
1061 | if(GameLoaded) CloseGame(); |
1062 | GameStateRestore=0; |
1063 | PPU_hook=0; |
d97315ac |
1064 | GameHBIRQHook=GameHBIRQHook2=0; |
c62d2810 |
1065 | GameExpSound.Fill=0; |
1066 | GameExpSound.RChange=0; |
1067 | if(GameExpSound.Kill) |
1068 | GameExpSound.Kill(); |
1069 | GameExpSound.Kill=0; |
1070 | MapIRQHook=0; |
1071 | MMC5Hack=0; |
1072 | PAL&=1; |
1073 | pale=0; |
1074 | |
1075 | FCEUGameInfo.name=0; |
1076 | FCEUGameInfo.type=GIT_CART; |
1077 | FCEUGameInfo.vidsys=GIV_USER; |
1078 | FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=-1; |
1079 | FCEUGameInfo.inputfc=-1; |
1080 | } |
1081 | |
5a2aa426 |
1082 | char lastLoadedGameName [2048]; |
989672f4 |
1083 | int LoadGameLastError = 0; |
d97315ac |
1084 | int UNIFLoad(const char *name, int fp); |
1085 | int iNESLoad(const char *name, int fp); |
1086 | int FDSLoad(const char *name, int fp); |
1087 | int NSFLoad(int fp); |
5a2aa426 |
1088 | |
c62d2810 |
1089 | FCEUGI *FCEUI_LoadGame(char *name) |
1090 | { |
5a2aa426 |
1091 | char name2[512]; |
1092 | int have_movie = 0; |
c62d2810 |
1093 | int fp; |
1094 | |
b2b95d2e |
1095 | //Exit=1; |
989672f4 |
1096 | LoadGameLastError = 0; |
c62d2810 |
1097 | ResetGameLoaded(); |
1098 | |
5a2aa426 |
1099 | strncpy(name2, name, sizeof(name2)); |
1100 | name2[sizeof(name2)-1] = 0; |
1101 | |
1102 | fp=FCEU_fopen(name2,"rb"); |
c62d2810 |
1103 | if(!fp) |
1104 | { |
1105 | FCEU_PrintError("Error opening \"%s\"!",name); |
989672f4 |
1106 | LoadGameLastError = 1; |
c62d2810 |
1107 | return 0; |
1108 | } |
1109 | |
5a2aa426 |
1110 | { |
1111 | char *p = name2 + strlen(name2) - 4; |
1112 | if (strcmp(p, ".fcm") == 0) |
1113 | { |
1114 | // movie detected |
1115 | printf("movie detected\n"); |
1116 | FCEU_fclose(fp); |
1117 | *p = 0; |
1118 | fp=FCEU_fopen(name2,"rb"); |
b2b95d2e |
1119 | if (!fp && p - name2 > 2) p[-2] = 0; |
1120 | fp=FCEU_fopen(name2,"rb"); |
5a2aa426 |
1121 | if (!fp) { |
1122 | printf("no ROM for movie\n"); |
989672f4 |
1123 | LoadGameLastError = 2; |
5a2aa426 |
1124 | return 0; |
1125 | } |
1126 | have_movie = 1; |
1127 | } |
1128 | } |
1129 | |
5a2aa426 |
1130 | GetFileBase(name2); |
1131 | if(iNESLoad(name2,fp)) |
c62d2810 |
1132 | goto endlseq; |
1133 | if(NSFLoad(fp)) |
1134 | goto endlseq; |
5a2aa426 |
1135 | if(FDSLoad(name2,fp)) |
c62d2810 |
1136 | goto endlseq; |
5a2aa426 |
1137 | if(UNIFLoad(name2,fp)) |
c62d2810 |
1138 | goto endlseq; |
1139 | |
1140 | FCEU_PrintError("An error occurred while loading the file."); |
1141 | FCEU_fclose(fp); |
989672f4 |
1142 | // format handlers may set LoadGameLastError themselves. |
1143 | if (LoadGameLastError == 0) LoadGameLastError = 3; |
c62d2810 |
1144 | return 0; |
1145 | |
1146 | endlseq: |
1147 | FCEU_fclose(fp); |
15300263 |
1148 | GameLoaded=1; |
c62d2810 |
1149 | |
1150 | FCEU_ResetVidSys(); |
1151 | if(FCEUGameInfo.type!=GIT_NSF) |
1152 | if(FSettings.GameGenie) |
1153 | OpenGenie(); |
1154 | |
1155 | PowerNES(); |
1156 | #ifdef NETWORK |
1157 | if(FSettings.NetworkPlay) InitNetplay(); |
1158 | #endif |
1159 | SaveStateRefresh(); |
1160 | if(FCEUGameInfo.type!=GIT_NSF) |
1161 | { |
92764e62 |
1162 | FCEU_LoadGamePalette(); |
1163 | FCEU_LoadGameCheats(0); |
c62d2810 |
1164 | } |
15300263 |
1165 | |
c62d2810 |
1166 | FCEU_ResetPalette(); |
1167 | Exit=0; |
5a2aa426 |
1168 | |
1169 | if (have_movie) |
1170 | FCEUI_LoadMovie(name, 1); |
989672f4 |
1171 | |
1172 | strcpy(lastLoadedGameName, name2); |
1173 | |
c62d2810 |
1174 | return(&FCEUGameInfo); |
1175 | } |
1176 | |
1177 | |
1178 | void FCEU_ResetVidSys(void) |
1179 | { |
1180 | int w; |
1181 | |
1182 | if(FCEUGameInfo.vidsys==GIV_NTSC) |
1183 | w=0; |
1184 | else if(FCEUGameInfo.vidsys==GIV_PAL) |
1185 | w=1; |
1186 | else |
1187 | w=FSettings.PAL; |
1188 | |
1189 | if(w) |
1190 | { |
1191 | PAL=1; |
c62d2810 |
1192 | FSettings.FirstSLine=FSettings.UsrFirstSLine[1]; |
1193 | FSettings.LastSLine=FSettings.UsrLastSLine[1]; |
1194 | } |
1195 | else |
1196 | { |
1197 | PAL=0; |
c62d2810 |
1198 | FSettings.FirstSLine=FSettings.UsrFirstSLine[0]; |
1199 | FSettings.LastSLine=FSettings.UsrLastSLine[0]; |
1200 | } |
0b65fdb3 |
1201 | printf("ResetVidSys: PAL = %i\n", PAL); |
c62d2810 |
1202 | SetSoundVariables(); |
1203 | } |
1204 | |
1205 | int FCEUI_Initialize(void) |
1206 | { |
1207 | if(!InitVirtualVideo()) |
1208 | return 0; |
1209 | memset(&FSettings,0,sizeof(FSettings)); |
1210 | FSettings.UsrFirstSLine[0]=8; |
1211 | FSettings.UsrFirstSLine[1]=0; |
1212 | FSettings.UsrLastSLine[0]=FSettings.UsrLastSLine[1]=239; |
92764e62 |
1213 | FSettings.SoundVolume=100; |
c62d2810 |
1214 | return 1; |
1215 | } |
1216 | |
ea80a45b |
1217 | void MMC5_hb(int); /* Ugh ugh ugh. */ |
c62d2810 |
1218 | static INLINE void Thingo(void) |
1219 | { |
1220 | Loop6502(); |
1221 | |
ea80a45b |
1222 | if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline); |
1223 | |
4fdfab07 |
1224 | // check: Battletoads & Double Dragon |
c62d2810 |
1225 | if(tosprite>=256) |
15300263 |
1226 | { |
4fdfab07 |
1227 | X6502_Run(256); |
c62d2810 |
1228 | } |
1229 | else |
1230 | { |
4fdfab07 |
1231 | // sky glitches in SMB1 if done wrong |
c62d2810 |
1232 | X6502_Run(tosprite); |
1233 | PPU[2]|=0x40; |
c62d2810 |
1234 | X6502_Run(256-tosprite); |
4fdfab07 |
1235 | tosprite = 256; |
c62d2810 |
1236 | } |
4fdfab07 |
1237 | TryFixit1(); |
c62d2810 |
1238 | DoHBlank(); |
1239 | } |
c62d2810 |
1240 | |
1241 | void EmLoop(void) |
1242 | { |
1243 | for(;;) |
1244 | { |
ea80a45b |
1245 | int x; |
92e249b1 |
1246 | uint32 scanlines_per_frame = PAL ? 312 : 262; |
4fdfab07 |
1247 | UpdateInput(); |
92764e62 |
1248 | FCEU_ApplyPeriodicCheats(); |
4fdfab07 |
1249 | |
1250 | // FCEUPPU_Loop: |
1251 | if(ppudead) /* Needed for Knight Rider, possibly others. */ |
1252 | { |
6587f346 |
1253 | //memset(XBuf, 0, 320*240); |
4fdfab07 |
1254 | X6502_Run(scanlines_per_frame*(256+85)); |
1255 | ppudead--; |
1256 | goto update; |
1257 | } |
ea80a45b |
1258 | |
c62d2810 |
1259 | X6502_Run(256+85); |
1260 | |
1261 | PPU[2]|=0x80; |
1262 | PPU[3]=PPUSPL=0; /* Not sure if this is correct. According |
1263 | to Matt Conte and my own tests, it is. Timing is probably |
1264 | off, though. NOTE: Not having this here |
1265 | breaks a Super Donkey Kong game. */ |
1266 | |
1267 | X6502_Run(12); /* I need to figure out the true nature and length |
15300263 |
1268 | of this delay. |
c62d2810 |
1269 | */ |
1270 | if(FCEUGameInfo.type==GIT_NSF) |
ea80a45b |
1271 | DoNSFFrame(); |
c62d2810 |
1272 | else if(VBlankON) |
1273 | TriggerNMI(); |
1274 | |
655f8df0 |
1275 | // Note: this is needed for asm core |
1276 | // Warning: using 'scanline' var here breaks Castlevania III |
1277 | { |
1278 | int lines; |
1279 | X6502_Run(256+85-12); |
1280 | for (lines=scanlines_per_frame-242-1;lines;lines--) |
1281 | X6502_Run(256+85); |
1282 | } |
1283 | // X6502_Run((scanlines_per_frame-242)*(256+85)-12); |
c62d2810 |
1284 | PPU_status&=0x1f; |
c62d2810 |
1285 | X6502_Run(256); |
ea80a45b |
1286 | |
c62d2810 |
1287 | { |
c62d2810 |
1288 | if(ScreenON || SpriteON) |
d97315ac |
1289 | { |
c62d2810 |
1290 | if(GameHBIRQHook) |
1291 | GameHBIRQHook(); |
ea80a45b |
1292 | if(PPU_hook) |
1293 | for(x=0;x<42;x++) {PPU_hook(0x2000); PPU_hook(0);} // ugh |
d97315ac |
1294 | if(GameHBIRQHook2) |
1295 | GameHBIRQHook2(); |
1296 | } |
c62d2810 |
1297 | |
4fdfab07 |
1298 | X6502_Run(85-16); |
c62d2810 |
1299 | |
4fdfab07 |
1300 | if(ScreenON || SpriteON) |
1301 | { |
1302 | RefreshAddr=TempAddr; |
1303 | if(PPU_hook) PPU_hook(RefreshAddr&0x3fff); |
1304 | } |
1305 | ResetRL(); |
1306 | |
1307 | X6502_Run(16-kook); |
1308 | kook ^= 1; |
c62d2810 |
1309 | } |
4fdfab07 |
1310 | |
c62d2810 |
1311 | if(FCEUGameInfo.type==GIT_NSF) |
937bf65b |
1312 | { |
6587f346 |
1313 | // run scanlines for asm core to fuction |
13624c8f |
1314 | for(scanline=0;scanline<240;scanline++) |
1315 | X6502_Run(256+85); |
937bf65b |
1316 | } |
c62d2810 |
1317 | else |
1318 | { |
1319 | int x,max,maxref; |
1320 | |
1321 | deemp=PPU[1]>>5; |
4a1bf31b |
1322 | SetRefreshLine(); |
4fdfab07 |
1323 | for(scanline=0;scanline<240;) // scanline is incremented in DoLine. Evil. :/ |
c62d2810 |
1324 | { |
1325 | deempcnt[deemp]++; |
1326 | Thingo(); |
1327 | } |
ea80a45b |
1328 | if(MMC5Hack && (ScreenON || SpriteON)) MMC5_hb(scanline); |
c62d2810 |
1329 | for(x=1,max=0,maxref=0;x<7;x++) |
1330 | { |
1331 | if(deempcnt[x]>max) |
1332 | { |
1333 | max=deempcnt[x]; |
1334 | maxref=x; |
1335 | } |
1336 | deempcnt[x]=0; |
1337 | } |
c62d2810 |
1338 | SetNESDeemph(maxref,0); |
1339 | } |
1340 | |
4fdfab07 |
1341 | update: |
c62d2810 |
1342 | { |
1343 | int ssize; |
1344 | |
1345 | ssize=FlushEmulateSound(); |
1346 | |
4fdfab07 |
1347 | timestampbase += timestamp; |
1348 | timestamp = 0; |
1349 | |
c62d2810 |
1350 | #ifdef FRAMESKIP |
1351 | if(FSkip) |
1352 | { |
1353 | FCEU_PutImageDummy(); |
1354 | FSkip--; |
5232c20c |
1355 | FCEUD_Update(0,WaveFinalMono,ssize); |
c62d2810 |
1356 | } |
1357 | else |
1358 | #endif |
1359 | { |
1360 | FCEU_PutImage(); |
5232c20c |
1361 | FCEUD_Update(XBuf+8,WaveFinalMono,ssize); |
c62d2810 |
1362 | } |
c62d2810 |
1363 | } |
1364 | |
1365 | if(Exit) |
1366 | { |
b2b95d2e |
1367 | //CloseGame(); |
c62d2810 |
1368 | break; |
1369 | } |
1370 | |
4fdfab07 |
1371 | } // for |
c62d2810 |
1372 | } |
1373 | |
1374 | #ifdef FPS |
1375 | #include <sys/time.h> |
1376 | uint64 frcount; |
1377 | #endif |
1378 | void FCEUI_Emulate(void) |
1379 | { |
1380 | #ifdef FPS |
1381 | uint64 starttime,end; |
1382 | struct timeval tv; |
1383 | frcount=0; |
1384 | gettimeofday(&tv,0); |
1385 | starttime=((uint64)tv.tv_sec*1000000)+tv.tv_usec; |
1386 | #endif |
1387 | EmLoop(); |
1388 | |
1389 | #ifdef FPS |
1390 | // Probably won't work well on Windows port; for |
1391 | // debugging/speed testing. |
1392 | { |
1393 | uint64 w; |
1394 | int i,frac; |
1395 | gettimeofday(&tv,0); |
1396 | end=((uint64)tv.tv_sec*1000000)+tv.tv_usec; |
1397 | w=frcount*10000000000LL/(end-starttime); |
1398 | i=w/10000; |
1399 | frac=w-i*10000; |
1400 | printf("Average FPS: %d.%04d\n",i,frac); |
1401 | } |
1402 | #endif |
1403 | |
1404 | } |
1405 | |
1406 | void FCEUI_CloseGame(void) |
1407 | { |
1408 | Exit=1; |
1409 | } |
1410 | |
1411 | static void ResetPPU(void) |
1412 | { |
1413 | VRAMBuffer=PPU[0]=PPU[1]=PPU[2]=PPU[3]=0; |
1414 | PPUSPL=0; |
1415 | PPUGenLatch=0; |
1416 | RefreshAddr=TempAddr=0; |
1417 | vtoggle = 0; |
4fdfab07 |
1418 | ppudead = 2; |
1419 | kook = 0; |
c62d2810 |
1420 | } |
1421 | |
1422 | static void PowerPPU(void) |
1423 | { |
1424 | memset(NTARAM,0x00,0x800); |
1425 | memset(PALRAM,0x00,0x20); |
1426 | memset(SPRAM,0x00,0x100); |
1427 | ResetPPU(); |
1428 | } |
1429 | |
1430 | void ResetNES(void) |
1431 | { |
92764e62 |
1432 | if(!GameLoaded) return; |
c62d2810 |
1433 | GameInterface(GI_RESETM2); |
1434 | ResetSound(); |
1435 | ResetPPU(); |
1436 | X6502_Reset(); |
1437 | } |
1438 | |
b8da43fb |
1439 | static void FCEU_MemoryRand(uint8 *ptr, uint32 size) |
1440 | { |
1441 | int x=0; |
1442 | while(size) |
1443 | { |
1444 | *ptr=(x&4)?0xFF:0x00; |
1445 | x++; |
1446 | size--; |
1447 | ptr++; |
1448 | } |
1449 | } |
1450 | |
15300263 |
1451 | void PowerNES(void) |
c62d2810 |
1452 | { |
1453 | if(!GameLoaded) return; |
1454 | |
1455 | FCEU_CheatResetRAM(); |
1456 | FCEU_CheatAddRAM(2,0,RAM); |
1457 | |
1458 | GeniePower(); |
1459 | |
b8da43fb |
1460 | #ifndef DEBUG_ASM_6502 |
1461 | FCEU_MemoryRand(RAM,0x800); |
1462 | #else |
c62d2810 |
1463 | memset(RAM,0x00,0x800); |
b8da43fb |
1464 | #endif |
c62d2810 |
1465 | ResetMapping(); |
1466 | GameInterface(GI_POWER); |
1467 | PowerSound(); |
1468 | PowerPPU(); |
1469 | timestampbase=0; |
b8da43fb |
1470 | #ifdef ASM_6502 |
1471 | if (geniestage) |
1472 | GenieSetPages(0); |
1473 | #endif |
c62d2810 |
1474 | X6502_Power(); |
1475 | } |
1476 | |
890e37ba |
1477 | |
1478 | /* savestate stuff */ |
1479 | uint16 TempAddrT,RefreshAddrT; |
1480 | |
1481 | SFORMAT FCEUPPU_STATEINFO[]={ |
1482 | { NTARAM, 0x800, "NTAR"}, |
1483 | { PALRAM, 0x20, "PRAM"}, |
1484 | { SPRAM, 0x100, "SPRA"}, |
1485 | { PPU, 0x4, "PPUR"}, |
1486 | { &XOffset, 1, "XOFF"}, |
1487 | { &vtoggle, 1, "VTOG"}, |
1488 | { &RefreshAddrT, 2|RLSB, "RADD"}, |
1489 | { &TempAddrT, 2|RLSB, "TADD"}, |
1490 | { &VRAMBuffer, 1, "VBUF"}, |
1491 | { &PPUGenLatch, 1, "PGEN"}, |
1492 | // from 0.98.15 |
1493 | { &kook, 1, "KOOK"}, |
1494 | { &ppudead, 1, "DEAD"}, |
1495 | { &PPUSPL, 1, "PSPL"}, |
1496 | { 0 } |
1497 | }; |
1498 | |
1499 | |