c62d2810 |
1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
d97315ac |
4 | * Copyright (C) 2002 Xodnizel |
c62d2810 |
5 | * |
6 | * This program is free software; you can redistribute it and/or modify |
7 | * it under the terms of the GNU General Public License as published by |
8 | * the Free Software Foundation; either version 2 of the License, or |
9 | * (at your option) any later version. |
10 | * |
11 | * This program is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
14 | * GNU General Public License for more details. |
15 | * |
16 | * You should have received a copy of the GNU General Public License |
17 | * along with this program; if not, write to the Free Software |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
19 | */ |
20 | |
21 | #include <string.h> |
22 | #include <stdlib.h> |
d97315ac |
23 | #include <stdio.h> |
c62d2810 |
24 | |
2a6855a3 |
25 | #ifdef GP2X |
26 | #include <unistd.h> // for sync() |
27 | #endif |
28 | |
c62d2810 |
29 | #include "types.h" |
c62d2810 |
30 | #include "fce.h" |
d97315ac |
31 | #include "ppu.h" |
32 | |
c62d2810 |
33 | #include "cart.h" |
34 | #include "memory.h" |
d97315ac |
35 | #include "x6502.h" |
c62d2810 |
36 | |
37 | #include "general.h" |
d97315ac |
38 | |
c62d2810 |
39 | #include "svga.h" |
d97315ac |
40 | #include "file.h" |
41 | |
42 | #define FCEUPPU_LineUpdate(...) |
c62d2810 |
43 | |
937bf65b |
44 | /* |
c62d2810 |
45 | This file contains all code for coordinating the mapping in of the |
46 | address space external to the NES. |
47 | It's also (ab)used by the NSF code. |
48 | */ |
49 | |
50 | uint8 *Page[32],*VPage[8]; |
51 | uint8 **VPageR=VPage; |
52 | uint8 *VPageG[8]; |
53 | uint8 *MMC5SPRVPage[8]; |
54 | uint8 *MMC5BGVPage[8]; |
55 | |
d97315ac |
56 | static uint8 PRGIsRAM[32]; /* This page is/is not PRG RAM. */ |
c62d2810 |
57 | |
d97315ac |
58 | /* 16 are (sort of) reserved for UNIF/iNES and 16 to map other stuff. */ |
c62d2810 |
59 | static int CHRram[32]; |
60 | static int PRGram[32]; |
61 | |
62 | uint8 *PRGptr[32]; |
63 | uint8 *CHRptr[32]; |
64 | |
65 | uint32 PRGsize[32]; |
66 | uint32 CHRsize[32]; |
67 | |
68 | uint32 PRGmask2[32]; |
69 | uint32 PRGmask4[32]; |
70 | uint32 PRGmask8[32]; |
71 | uint32 PRGmask16[32]; |
72 | uint32 PRGmask32[32]; |
73 | |
74 | uint32 CHRmask1[32]; |
75 | uint32 CHRmask2[32]; |
76 | uint32 CHRmask4[32]; |
77 | uint32 CHRmask8[32]; |
78 | |
79 | int geniestage=0; |
80 | |
81 | int modcon; |
82 | |
83 | uint8 genieval[3]; |
84 | uint8 geniech[3]; |
85 | |
86 | uint32 genieaddr[3]; |
87 | |
d97315ac |
88 | static INLINE void setpageptr(int s, uint32 A, uint8 *p, int ram) |
c62d2810 |
89 | { |
90 | uint32 AB=A>>11; |
91 | int x; |
92 | |
d97315ac |
93 | if(p) |
94 | for(x=(s>>1)-1;x>=0;x--) |
95 | { |
96 | PRGIsRAM[AB+x]=ram; |
97 | Page[AB+x]=p-A; |
98 | } |
99 | else |
100 | for(x=(s>>1)-1;x>=0;x--) |
101 | { |
102 | PRGIsRAM[AB+x]=0; |
103 | Page[AB+x]=0; |
104 | } |
c62d2810 |
105 | } |
106 | |
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107 | static uint8 nothing[8192]; |
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108 | void ResetCartMapping(void) |
109 | { |
110 | int x; |
111 | |
112 | for(x=0;x<32;x++) |
113 | { |
d97315ac |
114 | Page[x]=nothing-x*2048; |
c62d2810 |
115 | PRGptr[x]=CHRptr[x]=0; |
116 | PRGsize[x]=CHRsize[x]=0; |
117 | } |
118 | for(x=0;x<8;x++) |
119 | { |
d97315ac |
120 | MMC5SPRVPage[x]=MMC5BGVPage[x]=VPageR[x]=nothing-0x400*x; |
c62d2810 |
121 | } |
122 | |
123 | } |
124 | |
125 | void SetupCartPRGMapping(int chip, uint8 *p, uint32 size, int ram) |
126 | { |
127 | PRGptr[chip]=p; |
128 | PRGsize[chip]=size; |
129 | |
130 | PRGmask2[chip]=(size>>11)-1; |
131 | PRGmask4[chip]=(size>>12)-1; |
132 | PRGmask8[chip]=(size>>13)-1; |
133 | PRGmask16[chip]=(size>>14)-1; |
937bf65b |
134 | PRGmask32[chip]=(size>>15)-1; |
c62d2810 |
135 | |
136 | PRGram[chip]=ram?1:0; |
137 | } |
138 | |
139 | void SetupCartCHRMapping(int chip, uint8 *p, uint32 size, int ram) |
140 | { |
141 | CHRptr[chip]=p; |
142 | CHRsize[chip]=size; |
143 | |
144 | CHRmask1[chip]=(size>>10)-1; |
145 | CHRmask2[chip]=(size>>11)-1; |
146 | CHRmask4[chip]=(size>>12)-1; |
147 | CHRmask8[chip]=(size>>13)-1; |
148 | |
149 | CHRram[chip]=ram; |
150 | } |
151 | |
152 | DECLFR(CartBR) |
153 | { |
154 | return Page[A>>11][A]; |
155 | } |
156 | |
d97315ac |
157 | DECLFW(CartBW) |
c62d2810 |
158 | { |
d97315ac |
159 | //printf("Ok: %04x:%02x, %d\n",A,V,PRGIsRAM[A>>11]); |
160 | if(PRGIsRAM[A>>11] && Page[A>>11]) |
161 | Page[A>>11][A]=V; |
162 | } |
163 | |
164 | DECLFR(CartBROB) |
165 | { |
166 | if(!Page[A>>11]) return(X.DB); |
167 | return Page[A>>11][A]; |
168 | } |
c62d2810 |
169 | |
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170 | void FASTAPASS(3) setprg2r(int r, unsigned int A, unsigned int V) |
171 | { |
172 | V&=PRGmask2[r]; |
173 | setpageptr(2,A,PRGptr[r]?(&PRGptr[r][V<<11]):0,PRGram[r]); |
13624c8f |
174 | X6502_Rebase(); |
c62d2810 |
175 | } |
176 | |
177 | void FASTAPASS(2) setprg2(uint32 A, uint32 V) |
178 | { |
179 | setprg2r(0,A,V); |
180 | } |
181 | |
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182 | void FASTAPASS(3) setprg4r(int r, unsigned int A, unsigned int V) |
c62d2810 |
183 | { |
c62d2810 |
184 | V&=PRGmask4[r]; |
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185 | setpageptr(4,A,PRGptr[r]?(&PRGptr[r][V<<12]):0,PRGram[r]); |
13624c8f |
186 | X6502_Rebase(); |
c62d2810 |
187 | } |
188 | |
189 | void FASTAPASS(2) setprg4(uint32 A, uint32 V) |
190 | { |
191 | setprg4r(0,A,V); |
192 | } |
193 | |
d97315ac |
194 | void FASTAPASS(3) setprg8r(int r, unsigned int A, unsigned int V) |
c62d2810 |
195 | { |
c62d2810 |
196 | if(PRGsize[r]>=8192) |
197 | { |
198 | V&=PRGmask8[r]; |
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199 | setpageptr(8,A,PRGptr[r]?(&PRGptr[r][V<<13]):0,PRGram[r]); |
c62d2810 |
200 | } |
201 | else |
202 | { |
203 | uint32 VA=V<<2; |
204 | int x; |
205 | for(x=0;x<4;x++) |
d97315ac |
206 | setpageptr(2,A+(x<<11),PRGptr[r]?(&PRGptr[r][((VA+x)&PRGmask2[r])<<11]):0,PRGram[r]); |
c62d2810 |
207 | } |
13624c8f |
208 | X6502_Rebase(); |
c62d2810 |
209 | } |
210 | |
211 | void FASTAPASS(2) setprg8(uint32 A, uint32 V) |
212 | { |
213 | setprg8r(0,A,V); |
214 | } |
215 | |
d97315ac |
216 | void FASTAPASS(3) setprg16r(int r, unsigned int A, unsigned int V) |
c62d2810 |
217 | { |
c62d2810 |
218 | if(PRGsize[r]>=16384) |
219 | { |
220 | V&=PRGmask16[r]; |
d97315ac |
221 | setpageptr(16,A,PRGptr[r]?(&PRGptr[r][V<<14]):0,PRGram[r]); |
c62d2810 |
222 | } |
223 | else |
224 | { |
225 | uint32 VA=V<<3; |
226 | int x; |
227 | |
228 | for(x=0;x<8;x++) |
d97315ac |
229 | setpageptr(2,A+(x<<11),PRGptr[r]?(&PRGptr[r][((VA+x)&PRGmask2[r])<<11]):0,PRGram[r]); |
c62d2810 |
230 | } |
13624c8f |
231 | X6502_Rebase(); |
c62d2810 |
232 | } |
233 | |
234 | void FASTAPASS(2) setprg16(uint32 A, uint32 V) |
235 | { |
236 | setprg16r(0,A,V); |
237 | } |
238 | |
d97315ac |
239 | void FASTAPASS(3) setprg32r(int r,unsigned int A, unsigned int V) |
c62d2810 |
240 | { |
c62d2810 |
241 | if(PRGsize[r]>=32768) |
242 | { |
243 | V&=PRGmask32[r]; |
d97315ac |
244 | setpageptr(32,A,PRGptr[r]?(&PRGptr[r][V<<15]):0,PRGram[r]); |
c62d2810 |
245 | } |
246 | else |
247 | { |
248 | uint32 VA=V<<4; |
249 | int x; |
250 | |
251 | for(x=0;x<16;x++) |
d97315ac |
252 | setpageptr(2,A+(x<<11),PRGptr[r]?(&PRGptr[r][((VA+x)&PRGmask2[r])<<11]):0,PRGram[r]); |
c62d2810 |
253 | } |
13624c8f |
254 | X6502_Rebase(); |
c62d2810 |
255 | } |
256 | |
257 | void FASTAPASS(2) setprg32(uint32 A, uint32 V) |
258 | { |
259 | setprg32r(0,A,V); |
260 | } |
261 | |
d97315ac |
262 | void FASTAPASS(3) setchr1r(int r, unsigned int A, unsigned int V) |
c62d2810 |
263 | { |
264 | if(!CHRptr[r]) return; |
d97315ac |
265 | FCEUPPU_LineUpdate(); |
c62d2810 |
266 | V&=CHRmask1[r]; |
267 | if(CHRram[r]) |
268 | PPUCHRRAM|=(1<<(A>>10)); |
269 | else |
270 | PPUCHRRAM&=~(1<<(A>>10)); |
271 | VPageR[(A)>>10]=&CHRptr[r][(V)<<10]-(A); |
272 | } |
273 | |
d97315ac |
274 | void FASTAPASS(3) setchr2r(int r, unsigned int A, unsigned int V) |
c62d2810 |
275 | { |
276 | if(!CHRptr[r]) return; |
d97315ac |
277 | FCEUPPU_LineUpdate(); |
c62d2810 |
278 | V&=CHRmask2[r]; |
279 | VPageR[(A)>>10]=VPageR[((A)>>10)+1]=&CHRptr[r][(V)<<11]-(A); |
280 | if(CHRram[r]) |
281 | PPUCHRRAM|=(3<<(A>>10)); |
282 | else |
283 | PPUCHRRAM&=~(3<<(A>>10)); |
284 | } |
285 | |
d97315ac |
286 | void FASTAPASS(3) setchr4r(int r, unsigned int A, unsigned int V) |
c62d2810 |
287 | { |
288 | if(!CHRptr[r]) return; |
d97315ac |
289 | FCEUPPU_LineUpdate(); |
c62d2810 |
290 | V&=CHRmask4[r]; |
291 | VPageR[(A)>>10]=VPageR[((A)>>10)+1]= |
292 | VPageR[((A)>>10)+2]=VPageR[((A)>>10)+3]=&CHRptr[r][(V)<<12]-(A); |
293 | if(CHRram[r]) |
294 | PPUCHRRAM|=(15<<(A>>10)); |
295 | else |
296 | PPUCHRRAM&=~(15<<(A>>10)); |
297 | } |
298 | |
d97315ac |
299 | void FASTAPASS(2) setchr8r(int r, unsigned int V) |
c62d2810 |
300 | { |
301 | int x; |
302 | |
303 | if(!CHRptr[r]) return; |
d97315ac |
304 | FCEUPPU_LineUpdate(); |
c62d2810 |
305 | V&=CHRmask8[r]; |
306 | for(x=7;x>=0;x--) |
307 | VPageR[x]=&CHRptr[r][V<<13]; |
308 | if(CHRram[r]) |
309 | PPUCHRRAM|=(255); |
310 | else |
311 | PPUCHRRAM&=~(255); |
312 | } |
313 | |
314 | void FASTAPASS(2) setchr1(unsigned int A, unsigned int V) |
315 | { |
316 | setchr1r(0,A,V); |
317 | } |
318 | |
319 | void FASTAPASS(2) setchr2(unsigned int A, unsigned int V) |
320 | { |
321 | setchr2r(0,A,V); |
322 | } |
323 | |
324 | void FASTAPASS(2) setchr4(unsigned int A, unsigned int V) |
325 | { |
326 | setchr4r(0,A,V); |
327 | } |
328 | |
d97315ac |
329 | void FASTAPASS(1) setchr8(unsigned int V) |
c62d2810 |
330 | { |
331 | setchr8r(0,V); |
332 | } |
333 | |
334 | void FASTAPASS(1) setvram8(uint8 *p) |
335 | { |
336 | int x; |
337 | for(x=7;x>=0;x--) |
338 | VPageR[x]=p; |
339 | PPUCHRRAM|=255; |
340 | } |
341 | |
342 | void FASTAPASS(2) setvram4(uint32 A, uint8 *p) |
343 | { |
344 | int x; |
345 | for(x=3;x>=0;x--) |
346 | VPageR[(A>>10)+x]=p-A; |
347 | PPUCHRRAM|=(15<<(A>>10)); |
348 | } |
349 | |
350 | void FASTAPASS(3) setvramb1(uint8 *p, uint32 A, uint32 b) |
351 | { |
d97315ac |
352 | FCEUPPU_LineUpdate(); |
c62d2810 |
353 | VPageR[A>>10]=p-A+(b<<10); |
354 | PPUCHRRAM|=(1<<(A>>10)); |
355 | } |
356 | |
357 | void FASTAPASS(3) setvramb2(uint8 *p, uint32 A, uint32 b) |
358 | { |
d97315ac |
359 | FCEUPPU_LineUpdate(); |
c62d2810 |
360 | VPageR[(A>>10)]=VPageR[(A>>10)+1]=p-A+(b<<11); |
361 | PPUCHRRAM|=(3<<(A>>10)); |
362 | } |
363 | |
364 | void FASTAPASS(3) setvramb4(uint8 *p, uint32 A, uint32 b) |
365 | { |
366 | int x; |
367 | |
d97315ac |
368 | FCEUPPU_LineUpdate(); |
c62d2810 |
369 | for(x=3;x>=0;x--) |
370 | VPageR[(A>>10)+x]=p-A+(b<<12); |
371 | PPUCHRRAM|=(15<<(A>>10)); |
372 | } |
373 | |
374 | void FASTAPASS(2) setvramb8(uint8 *p, uint32 b) |
375 | { |
376 | int x; |
377 | |
d97315ac |
378 | FCEUPPU_LineUpdate(); |
c62d2810 |
379 | for(x=7;x>=0;x--) |
380 | VPageR[x]=p+(b<<13); |
381 | PPUCHRRAM|=255; |
382 | } |
383 | |
384 | /* This function can be called without calling SetupCartMirroring(). */ |
385 | |
386 | void FASTAPASS(3) setntamem(uint8 *p, int ram, uint32 b) |
387 | { |
d97315ac |
388 | FCEUPPU_LineUpdate(); |
c62d2810 |
389 | vnapage[b]=p; |
390 | PPUNTARAM&=~(1<<b); |
391 | if(ram) |
392 | PPUNTARAM|=1<<b; |
393 | } |
394 | |
395 | static int mirrorhard=0; |
396 | void setmirrorw(int a, int b, int c, int d) |
397 | { |
d97315ac |
398 | FCEUPPU_LineUpdate(); |
c62d2810 |
399 | vnapage[0]=NTARAM+a*0x400; |
400 | vnapage[1]=NTARAM+b*0x400; |
401 | vnapage[2]=NTARAM+c*0x400; |
402 | vnapage[3]=NTARAM+d*0x400; |
403 | } |
404 | |
405 | void FASTAPASS(1) setmirror(int t) |
406 | { |
d97315ac |
407 | FCEUPPU_LineUpdate(); |
c62d2810 |
408 | if(!mirrorhard) |
409 | { |
410 | switch(t) |
411 | { |
412 | case MI_H: |
413 | vnapage[0]=vnapage[1]=NTARAM;vnapage[2]=vnapage[3]=NTARAM+0x400; |
414 | break; |
415 | case MI_V: |
416 | vnapage[0]=vnapage[2]=NTARAM;vnapage[1]=vnapage[3]=NTARAM+0x400; |
417 | break; |
418 | case MI_0: |
419 | vnapage[0]=vnapage[1]=vnapage[2]=vnapage[3]=NTARAM; |
420 | break; |
421 | case MI_1: |
422 | vnapage[0]=vnapage[1]=vnapage[2]=vnapage[3]=NTARAM+0x400; |
423 | break; |
424 | } |
425 | PPUNTARAM=0xF; |
426 | } |
427 | } |
428 | |
429 | void SetupCartMirroring(int m, int hard, uint8 *extra) |
430 | { |
431 | if(m<4) |
d97315ac |
432 | { |
433 | mirrorhard = 0; |
c62d2810 |
434 | setmirror(m); |
d97315ac |
435 | } |
c62d2810 |
436 | else |
437 | { |
438 | vnapage[0]=NTARAM; |
439 | vnapage[1]=NTARAM+0x400; |
440 | vnapage[2]=extra; |
441 | vnapage[3]=extra+0x400; |
442 | PPUNTARAM=0xF; |
443 | } |
444 | mirrorhard=hard; |
445 | } |
446 | |
447 | static uint8 *GENIEROM=0; |
448 | |
449 | void FixGenieMap(void); |
450 | |
451 | /* Called when a game(file) is opened successfully. */ |
452 | void OpenGenie(void) |
453 | { |
454 | FILE *fp; |
455 | int x; |
456 | |
457 | if(!GENIEROM) |
458 | { |
d97315ac |
459 | char *fn; |
460 | |
461 | if(!(GENIEROM=(uint8 *)FCEU_malloc(4096+1024))) return; |
c62d2810 |
462 | |
d97315ac |
463 | fn=FCEU_MakeFName(FCEUMKF_GGROM,0,0); |
464 | fp=fopen(fn,"rb"); |
92764e62 |
465 | free(fn); |
d97315ac |
466 | if(!fp) |
c62d2810 |
467 | { |
468 | FCEU_PrintError("Error opening Game Genie ROM image!"); |
469 | free(GENIEROM); |
470 | GENIEROM=0; |
471 | return; |
472 | } |
473 | if(fread(GENIEROM,1,16,fp)!=16) |
474 | { |
475 | grerr: |
476 | FCEU_PrintError("Error reading from Game Genie ROM image!"); |
477 | free(GENIEROM); |
478 | GENIEROM=0; |
479 | fclose(fp); |
480 | return; |
481 | } |
d97315ac |
482 | if(GENIEROM[0]==0x4E) /* iNES ROM image */ |
c62d2810 |
483 | { |
484 | if(fread(GENIEROM,1,4096,fp)!=4096) |
485 | goto grerr; |
486 | if(fseek(fp,16384-4096,SEEK_CUR)) |
487 | goto grerr; |
488 | if(fread(GENIEROM+4096,1,256,fp)!=256) |
489 | goto grerr; |
490 | } |
491 | else |
492 | { |
493 | if(fread(GENIEROM+16,1,4352-16,fp)!=(4352-16)) |
494 | goto grerr; |
495 | } |
496 | fclose(fp); |
937bf65b |
497 | |
c62d2810 |
498 | /* Workaround for the FCE Ultra CHR page size only being 1KB */ |
499 | for(x=0;x<4;x++) |
500 | memcpy(GENIEROM+4096+(x<<8),GENIEROM+4096,256); |
501 | } |
502 | |
503 | geniestage=1; |
504 | } |
505 | |
506 | /* Called when a game is closed. */ |
507 | void CloseGenie(void) |
508 | { |
509 | /* No good reason to free() the Game Genie ROM image data. */ |
510 | geniestage=0; |
511 | FlushGenieRW(); |
512 | VPageR=VPage; |
513 | } |
514 | |
d97315ac |
515 | void FCEU_KillGenie(void) |
516 | { |
517 | if(GENIEROM) |
518 | { |
519 | free(GENIEROM); |
520 | GENIEROM=0; |
521 | } |
522 | } |
523 | |
c62d2810 |
524 | static DECLFR(GenieRead) |
525 | { |
526 | return GENIEROM[A&4095]; |
527 | } |
528 | |
529 | static DECLFW(GenieWrite) |
530 | { |
531 | switch(A) |
532 | { |
533 | case 0x800c: |
534 | case 0x8008: |
535 | case 0x8004:genieval[((A-4)&0xF)>>2]=V;break; |
536 | |
537 | case 0x800b: |
538 | case 0x8007: |
539 | case 0x8003:geniech[((A-3)&0xF)>>2]=V;break; |
540 | |
541 | case 0x800a: |
542 | case 0x8006: |
543 | case 0x8002:genieaddr[((A-2)&0xF)>>2]&=0xFF00;genieaddr[((A-2)&0xF)>>2]|=V;break; |
544 | |
545 | case 0x8009: |
546 | case 0x8005: |
547 | case 0x8001:genieaddr[((A-1)&0xF)>>2]&=0xFF;genieaddr[((A-1)&0xF)>>2]|=(V|0x80)<<8;break; |
548 | |
549 | case 0x8000:if(!V) |
d97315ac |
550 | FixGenieMap(); |
551 | else |
552 | { |
553 | modcon=V^0xFF; |
554 | if(V==0x71) |
555 | modcon=0; |
556 | } |
557 | break; |
c62d2810 |
558 | } |
559 | } |
560 | |
561 | static readfunc GenieBackup[3]; |
562 | |
563 | static DECLFR(GenieFix1) |
564 | { |
565 | uint8 r=GenieBackup[0](A); |
566 | |
d97315ac |
567 | if((modcon>>1)&1) // No check |
c62d2810 |
568 | return genieval[0]; |
569 | else if(r==geniech[0]) |
570 | return genieval[0]; |
571 | |
572 | return r; |
573 | } |
574 | |
575 | static DECLFR(GenieFix2) |
576 | { |
577 | uint8 r=GenieBackup[1](A); |
578 | |
d97315ac |
579 | if((modcon>>2)&1) // No check |
c62d2810 |
580 | return genieval[1]; |
581 | else if(r==geniech[1]) |
582 | return genieval[1]; |
583 | |
584 | return r; |
585 | } |
586 | |
587 | static DECLFR(GenieFix3) |
588 | { |
589 | uint8 r=GenieBackup[2](A); |
590 | |
d97315ac |
591 | if((modcon>>3)&1) // No check |
c62d2810 |
592 | return genieval[2]; |
593 | else if(r==geniech[2]) |
594 | return genieval[2]; |
595 | |
596 | return r; |
597 | } |
598 | |
599 | |
600 | void FixGenieMap(void) |
601 | { |
602 | int x; |
603 | |
604 | geniestage=2; |
605 | |
606 | for(x=0;x<8;x++) |
607 | VPage[x]=VPageG[x]; |
608 | |
609 | VPageR=VPage; |
610 | FlushGenieRW(); |
d97315ac |
611 | //printf("Rightyo\n"); |
c62d2810 |
612 | for(x=0;x<3;x++) |
613 | if((modcon>>(4+x))&1) |
614 | { |
615 | readfunc tmp[3]={GenieFix1,GenieFix2,GenieFix3}; |
616 | GenieBackup[x]=GetReadHandler(genieaddr[x]); |
617 | SetReadHandler(genieaddr[x],genieaddr[x],tmp[x]); |
618 | } |
619 | } |
620 | |
621 | void GeniePower(void) |
622 | { |
623 | uint32 x; |
624 | |
625 | if(!geniestage) |
626 | return; |
627 | |
628 | geniestage=1; |
629 | for(x=0;x<3;x++) |
630 | { |
631 | genieval[x]=0xFF; |
632 | geniech[x]=0xFF; |
633 | genieaddr[x]=0xFFFF; |
634 | } |
635 | modcon=0; |
636 | |
637 | SetWriteHandler(0x8000,0xFFFF,GenieWrite); |
638 | SetReadHandler(0x8000,0xFFFF,GenieRead); |
639 | |
640 | for(x=0;x<8;x++) |
641 | VPage[x]=GENIEROM+4096-0x400*x; |
642 | |
643 | if(AllocGenieRW()) |
644 | VPageR=VPageG; |
645 | else |
646 | geniestage=2; |
647 | } |
648 | |
b8da43fb |
649 | static uint8 *real_pages[16]; |
650 | |
651 | void GenieSetPages(int restore) |
652 | { |
653 | int page; |
654 | if (restore) |
655 | { |
656 | for (page=16; page<32; page++) |
657 | Page[page] = real_pages[page-16]; |
658 | } |
659 | else |
660 | { |
661 | for (page=16; page<32; page++) { |
662 | real_pages[page-16] = Page[page]; |
663 | Page[page]=GENIEROM - (page<<11) + ((page&1)<<11); |
664 | } |
665 | } |
666 | } |
c62d2810 |
667 | |
d97315ac |
668 | void FCEU_SaveGameSave(CartInfo *LocalHWInfo) |
669 | { |
670 | if(LocalHWInfo->battery && LocalHWInfo->SaveGame[0]) |
671 | { |
672 | FILE *sp; |
673 | char *soot; |
674 | |
675 | soot=FCEU_MakeFName(FCEUMKF_SAV,0,"sav"); |
676 | if((sp=FCEUD_UTF8fopen(soot,"wb"))==NULL) |
677 | { |
678 | FCEU_PrintError("WRAM file \"%s\" cannot be written to.\n",soot); |
679 | } |
680 | else |
681 | { |
682 | int x; |
683 | |
684 | for(x=0;x<4;x++) |
685 | if(LocalHWInfo->SaveGame[x]) |
686 | { |
687 | fwrite(LocalHWInfo->SaveGame[x],1, |
688 | LocalHWInfo->SaveGameLen[x],sp); |
689 | } |
2a6855a3 |
690 | fclose(sp); |
691 | #ifdef GP2X |
692 | sync(); |
693 | #endif |
d97315ac |
694 | } |
695 | free(soot); |
696 | } |
697 | } |
698 | |
699 | // hack, movie.c has to communicate with this function somehow |
700 | int disableBatteryLoading=0; |
701 | |
702 | void FCEU_LoadGameSave(CartInfo *LocalHWInfo) |
703 | { |
704 | if(LocalHWInfo->battery && LocalHWInfo->SaveGame[0] && !disableBatteryLoading) |
705 | { |
706 | FILE *sp; |
707 | char *soot; |
708 | |
709 | soot=FCEU_MakeFName(FCEUMKF_SAV,0,"sav"); |
710 | sp=FCEUD_UTF8fopen(soot,"rb"); |
711 | if(sp!=NULL) |
712 | { |
713 | int x; |
714 | for(x=0;x<4;x++) |
715 | if(LocalHWInfo->SaveGame[x]) |
716 | fread(LocalHWInfo->SaveGame[x],1,LocalHWInfo->SaveGameLen[x],sp); |
2a6855a3 |
717 | fclose(sp); |
d97315ac |
718 | } |
719 | free(soot); |
720 | } |
721 | } |
722 | |
e7f52878 |
723 | void DumpEmptyCartMapping(void) |
724 | { |
725 | int x, st=0, end=-1; |
726 | |
727 | for(x=8;x<32;x++) |
728 | { |
729 | if (Page[x] == (nothing-x*2048) || Page[x] == 0) |
730 | { |
731 | if (end != x) st=x; |
732 | end=x+1; |
733 | } |
734 | if (end == x) |
735 | printf("DumpEmptyCartMapping: %04x-%04x\n", st*2048, end*2048-1); |
736 | } |
737 | if (end==32) |
738 | printf("DumpEmptyCartMapping: %04x-%04x\n", st*2048, end*2048-1); |
739 | } |
740 | |
d97315ac |
741 | |