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1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
4 | * Copyright (C) 2002 Ben Parnell |
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 | /* TODO: Battery backup file saving, mirror force */ |
22 | /* **INCOMPLETE** */ |
23 | /* Override stuff: CHR RAM instead of CHR ROM, |
24 | mirroring. |
25 | */ |
26 | |
27 | #include <stdio.h> |
28 | #include <stdlib.h> |
29 | #include <string.h> |
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30 | #ifdef GP2X |
31 | #include <unistd.h> |
32 | #endif |
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33 | |
34 | |
35 | #include "types.h" |
36 | #include "fce.h" |
37 | #include "unif.h" |
38 | #include "version.h" |
39 | #include "svga.h" |
40 | #include "general.h" |
41 | #include "state.h" |
42 | #include "endian.h" |
43 | #include "file.h" |
44 | #include "cart.h" |
45 | #include "memory.h" |
46 | #include "input.h" |
47 | |
48 | typedef struct { |
49 | char ID[4]; |
50 | uint32 info; |
51 | } UNIF_HEADER; |
52 | |
53 | typedef struct { |
54 | char *name; |
55 | void (*init)(void); |
56 | int flags; |
57 | } BMAPPING; |
58 | |
59 | typedef struct { |
60 | char *name; |
61 | int (*init)(int fp); |
62 | } BFMAPPING; |
63 | |
64 | void (*BoardClose)(void); |
65 | void (*BoardPower)(void); |
66 | void (*BoardReset)(void); |
67 | |
68 | static int vramo; |
69 | static int mirrortodo; |
70 | int UNIFbattery; |
71 | static char *boardname; |
72 | static char *sboardname; |
73 | char *UNIFchrrama; |
74 | |
75 | static UNIF_HEADER unhead; |
76 | static UNIF_HEADER uchead; |
77 | |
78 | |
79 | static uint8 *malloced[32]; |
80 | |
81 | static int FixRomSize(uint32 size, uint32 minimum) |
82 | { |
83 | int x=1; |
84 | |
85 | if(size<minimum) |
86 | return minimum; |
87 | while(x<size) |
88 | x<<=1; |
89 | return x; |
90 | } |
91 | |
92 | static void FreeUNIF(void) |
93 | { |
94 | int x; |
95 | if(UNIFchrrama) |
96 | {free(UNIFchrrama);UNIFchrrama=0;} |
97 | if(boardname) |
98 | {free(boardname);boardname=0;} |
99 | for(x=0;x<32;x++) |
100 | { |
101 | if(malloced[x]) |
102 | {free(malloced[x]);malloced[x]=0;} |
103 | } |
104 | } |
105 | |
106 | static void ResetUNIF(void) |
107 | { |
108 | int x; |
109 | for(x=0;x<32;x++) |
110 | malloced[x]=0; |
111 | vramo=0; |
112 | UNIFbattery=0; |
113 | boardname=0; |
114 | mirrortodo=0; |
115 | BoardReset=BoardPower=BoardClose=0; |
116 | UNIFchrrama=0; |
117 | } |
118 | |
119 | static uint8 exntar[2048]; |
120 | |
121 | static void MooMirroring(void) |
122 | { |
123 | if(mirrortodo<0x4) |
124 | SetupCartMirroring(mirrortodo,1,0); |
125 | else if(mirrortodo==0x4) |
126 | { |
127 | SetupCartMirroring(4,1,exntar); |
128 | AddExState(exntar, 2048, 0,"EXNR"); |
129 | } |
130 | else |
131 | SetupCartMirroring(0,0,0); |
132 | } |
133 | |
134 | static int DoMirroring(int fp) |
135 | { |
136 | uint8 t; |
137 | t=FCEU_fgetc(fp); |
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138 | mirrortodo=t; |
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139 | |
140 | { |
141 | static char *stuffo[6]={"Horizontal","Vertical","$2000","$2400","\"Four-screen\"","Controlled by Mapper Hardware"}; |
142 | if(t<6) |
143 | printf(" Name/Attribute Table Mirroring: %s\n",stuffo[t]); |
144 | } |
145 | return(1); |
146 | } |
147 | |
148 | static int CTRL(int fp) |
149 | { |
150 | int t; |
151 | |
152 | if((t=FCEU_fgetc(fp))==EOF) |
153 | return(0); |
154 | /* The information stored in this byte isn't very helpful, but it's |
155 | better than nothing...maybe. |
156 | */ |
157 | |
158 | if(t&1) FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=SI_GAMEPAD; |
159 | else FCEUGameInfo.input[0]=FCEUGameInfo.input[1]=SI_NONE; |
160 | |
161 | if(t&2) FCEUGameInfo.input[1]=SI_ZAPPER; |
162 | else if(t&0x10) FCEUGameInfo.input[1]=SI_POWERPAD; |
163 | |
164 | return(1); |
165 | } |
166 | |
167 | static int TVCI(int fp) |
168 | { |
169 | int t; |
170 | if( (t=FCEU_fgetc(fp)) ==EOF) |
171 | return(0); |
172 | if(t<=2) |
173 | { |
174 | char *stuffo[3]={"NTSC","PAL","NTSC and PAL"}; |
175 | if(t==0) |
176 | FCEUGameInfo.vidsys=GIV_NTSC; |
177 | else if(t==1) |
178 | FCEUGameInfo.vidsys=GIV_PAL; |
179 | printf(" TV Standard Compatibility: %s\n",stuffo[t]); |
180 | } |
181 | return(1); |
182 | } |
183 | |
184 | static int EnableBattery(int fp) |
185 | { |
186 | puts(" Battery-backed."); |
187 | if(FCEU_fgetc(fp)==EOF) |
188 | return(0); |
189 | UNIFbattery=1; |
190 | return(1); |
191 | } |
192 | |
193 | static int LoadPRG(int fp) |
194 | { |
195 | int z,t; |
196 | z=uchead.ID[3]-'0'; |
197 | |
198 | if(z<0 || z>15) |
199 | return(0); |
200 | printf(" PRG ROM %d size: %d",z,(int) uchead.info); |
201 | if(malloced[z]) |
202 | free(malloced[z]); |
203 | t=FixRomSize(uchead.info,2048); |
204 | if(!(malloced[z]=FCEU_malloc(t))) |
205 | return(0); |
206 | memset(malloced[z]+uchead.info,0xFF,t-uchead.info); |
207 | if(FCEU_fread(malloced[z],1,uchead.info,fp)!=uchead.info) |
208 | { |
209 | puts("Read Error!"); |
210 | return(0); |
211 | } |
212 | else |
213 | puts(""); |
214 | |
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215 | SetupCartPRGMapping(z,malloced[z],t,0); |
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216 | return(1); |
217 | } |
218 | |
219 | static int SetBoardName(int fp) |
220 | { |
221 | if(!(boardname=FCEU_malloc(uchead.info+1))) |
222 | return(0); |
223 | FCEU_fread(boardname,1,uchead.info,fp); |
224 | boardname[uchead.info]=0; |
225 | printf(" Board name: %s\n",boardname); |
226 | sboardname=boardname; |
227 | if(!memcmp(boardname,"NES-",4) || !memcmp(boardname,"UNL-",4) || !memcmp(boardname,"HVC-",4) || !memcmp(boardname,"BTL-",4) || !memcmp(boardname,"BMC-",4)) |
228 | sboardname+=4; |
229 | return(1); |
230 | } |
231 | |
232 | static int LoadCHR(int fp) |
233 | { |
234 | int z,t; |
235 | z=uchead.ID[3]-'0'; |
236 | if(z<0 || z>15) |
237 | return(0); |
238 | printf(" CHR ROM %d size: %d",z,(int) uchead.info); |
239 | if(malloced[16+z]) |
240 | free(malloced[16+z]); |
241 | t=FixRomSize(uchead.info,8192); |
242 | if(!(malloced[16+z]=FCEU_malloc(t))) |
243 | return(0); |
244 | memset(malloced[16+z]+uchead.info,0xFF,t-uchead.info); |
245 | if(FCEU_fread(malloced[16+z],1,uchead.info,fp)!=uchead.info) |
246 | { |
247 | puts("Read Error!"); |
248 | return(0); |
249 | } |
250 | else |
251 | puts(""); |
252 | |
253 | SetupCartCHRMapping(z,malloced[16+z],t,0); |
254 | return(1); |
255 | } |
256 | |
257 | |
258 | #define BMCFLAG_FORCE4 1 |
259 | #define BMCFLAG_CHRROK 2 // Ok for generic UNIF code to make available |
260 | // 8KB of CHR RAM if no CHR ROM is present. |
261 | #define BMC 48 |
262 | |
263 | BMAPPING bmap[BMC] = { |
264 | |
265 | /* Sachen Carts */ |
266 | { "TC-U01-1.5M", TCU01_Init,0}, |
267 | { "Sachen-8259B", S8259B_Init,BMCFLAG_CHRROK}, |
268 | { "Sachen-8259A", S8259A_Init,BMCFLAG_CHRROK}, |
269 | { "Sachen-74LS374N", S74LS374N_Init,0}, |
270 | { "SA-016-1M", SA0161M_Init,0}, |
271 | { "SA-72007", SA72007_Init,0}, |
272 | { "SA-72008", SA72008_Init,0}, |
273 | { "SA-0036", SA0036_Init,0}, |
274 | { "SA-0037", SA0037_Init,0}, |
275 | |
276 | { "H2288", H2288_Init,0}, |
277 | // /* AVE carts. */ |
278 | // { "MB-91", MB91_Init,0}, // DeathBots |
279 | // { "NINA-06", NINA06_Init,0}, // F-15 City War |
280 | // { "NINA-03", NINA03_Init,0}, // Tiles of Fate |
281 | // { "NINA-001", NINA001_Init,0}, // Impossible Mission 2 |
282 | |
283 | { "HKROM", HKROM_Init,0}, |
284 | |
285 | { "EWROM", EWROM_Init,0}, |
286 | { "EKROM", EKROM_Init,0}, |
287 | { "ELROM", ELROM_Init,0}, |
288 | { "ETROM", ETROM_Init,0}, |
289 | |
290 | { "SAROM", SAROM_Init,0}, |
291 | { "SBROM", SBROM_Init,0}, |
292 | { "SCROM", SCROM_Init,0}, |
293 | { "SEROM", SEROM_Init,0}, |
294 | { "SGROM", SGROM_Init,0}, |
295 | { "SKROM", SKROM_Init,0}, |
296 | { "SLROM", SLROM_Init,0}, |
297 | { "SL1ROM", SL1ROM_Init,0}, |
298 | { "SNROM", SNROM_Init,0}, |
299 | { "SOROM", SOROM_Init,0}, |
300 | |
301 | { "TGROM", TGROM_Init,0}, |
302 | { "TR1ROM", TFROM_Init,BMCFLAG_FORCE4}, |
303 | { "TFROM", TFROM_Init,0}, |
304 | { "TLROM", TLROM_Init,0}, |
305 | { "TKROM", TKROM_Init,0}, |
306 | { "TSROM", TSROM_Init,0}, |
307 | |
308 | { "TLSROM", TLSROM_Init,0}, |
309 | { "TKSROM", TKSROM_Init,0}, |
310 | { "TQROM", TQROM_Init,0}, |
311 | { "TVROM", TLROM_Init,BMCFLAG_FORCE4}, |
312 | |
313 | { "CPROM", CPROM_Init,0}, |
314 | { "CNROM", CNROM_Init,0}, |
315 | { "NROM", NROM256_Init,0 }, |
316 | { "RROM", NROM128_Init,0 }, |
317 | { "RROM-128", NROM128_Init,0 }, |
318 | { "NROM-128", NROM128_Init,0 }, |
319 | { "NROM-256", NROM256_Init,0 }, |
320 | { "MHROM", MHROM_Init,0}, |
321 | { "UNROM", UNROM_Init,0}, |
322 | { "MARIO1-MALEE2", MALEE_Init,0}, |
323 | { "Supervision16in1", Supervision16_Init,0}, |
324 | { "NovelDiamond9999999in1", Novel_Init,0}, |
325 | { "Super24in1SC03", Super24_Init,0} |
326 | }; |
327 | |
328 | #define BMF 7 |
329 | BFMAPPING bfunc[BMF] = { |
330 | { "CTRL", CTRL }, |
331 | { "TVCI", TVCI }, |
332 | { "BATR", EnableBattery }, |
333 | { "MIRR", DoMirroring }, |
334 | { "PRG", LoadPRG }, |
335 | { "CHR", LoadCHR }, |
336 | { "MAPR", SetBoardName } |
337 | }; |
338 | |
339 | int LoadUNIFChunks(int fp) |
340 | { |
341 | int x; |
342 | int t; |
343 | for(;;) |
344 | { |
345 | t=FCEU_fread(&uchead,1,4,fp); |
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346 | if(t<4) |
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347 | { |
348 | if(t>0) |
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349 | return 0; |
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350 | return 1; |
351 | } |
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352 | if(!(FCEU_read32(&uchead.info,fp))) |
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353 | return 0; |
354 | t=0; |
355 | for(x=0;x<BMF;x++) |
356 | { |
357 | if(memcmp(&uchead,bfunc[x].name,strlen(bfunc[x].name))) |
358 | continue; |
359 | if(!bfunc[x].init(fp)) |
360 | return 0; |
361 | t=1; |
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362 | break; |
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363 | } |
364 | if(!t) |
365 | if(FCEU_fseek(fp,uchead.info,SEEK_CUR)) |
366 | return(0); |
367 | } |
368 | } |
369 | |
370 | static int InitializeBoard(void) |
371 | { |
372 | int x; |
373 | |
374 | for(x=0;x<BMC;x++) |
375 | { |
376 | if(strcmp(sboardname,bmap[x].name)) continue; |
377 | if(!malloced[16] && (bmap[x].flags&BMCFLAG_CHRROK)) |
378 | { |
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379 | UNIFchrrama=FCEU_malloc(8192); |
380 | if((malloced[16]=(uint8 *)UNIFchrrama)) |
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381 | { |
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382 | SetupCartCHRMapping(0,(uint8 *)UNIFchrrama,8192,1); |
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383 | AddExState(UNIFchrrama, 8192, 0,"CHRR"); |
384 | } |
385 | else |
386 | return(-1); |
387 | } |
388 | if(bmap[x].flags&BMCFLAG_FORCE4) |
389 | mirrortodo=4; |
390 | MooMirroring(); |
391 | bmap[x].init(); |
392 | return(1); |
393 | } |
394 | FCEU_PrintError("Board type not supported."); |
395 | return(0); |
396 | } |
397 | |
398 | static void UNIFGI(int h) |
399 | { |
400 | switch(h) |
401 | { |
402 | case GI_RESETM2: |
403 | if(BoardReset) BoardReset(); |
404 | break; |
405 | case GI_POWER: |
406 | if(BoardPower) BoardPower(); |
407 | if(UNIFchrrama) memset(UNIFchrrama,0,8192); |
408 | break; |
409 | case GI_CLOSE: |
410 | if(BoardClose) |
411 | BoardClose(); |
412 | FreeUNIF(); |
413 | break; |
414 | } |
415 | } |
416 | |
417 | int UNIFLoad(char *name, int fp) |
418 | { |
419 | FCEU_fseek(fp,0,SEEK_SET); |
420 | FCEU_fread(&unhead,1,4,fp); |
421 | if(memcmp(&unhead,"UNIF",4)) |
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422 | return 0; |
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423 | |
424 | ResetCartMapping(); |
425 | |
426 | ResetExState(); |
427 | ResetUNIF(); |
428 | if(!FCEU_read32(&unhead.info,fp)) |
429 | goto aborto; |
430 | if(FCEU_fseek(fp,0x20,SEEK_SET)<0) |
431 | goto aborto; |
432 | if(!LoadUNIFChunks(fp)) |
433 | goto aborto; |
434 | if(!InitializeBoard()) |
435 | goto aborto; |
436 | |
437 | GameInterface=UNIFGI; |
438 | return 1; |
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439 | |
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440 | aborto: |
441 | |
442 | FreeUNIF(); |
443 | ResetUNIF(); |
444 | return 0; |
445 | } |
446 | |
447 | static FILE *fssp=0; |
448 | |
449 | void UNIFOpenWRAM(int t, char *ext, int override) |
450 | { |
451 | if(UNIFbattery|override) |
452 | { |
453 | fssp=fopen(FCEU_MakeFName(FCEUMKF_SAV,0,(ext?ext:"sav")),(t==UOW_RD)?"rb":"wb"); |
454 | } |
455 | } |
456 | |
457 | void UNIFWriteWRAM(uint8 *p, int size) |
458 | { |
459 | if(fssp) |
460 | fwrite(p, size, 1, fssp); |
461 | } |
462 | |
463 | void UNIFReadWRAM(uint8 *p, int size) |
464 | { |
465 | if(fssp) |
466 | fread(p, size, 1, fssp); |
467 | } |
468 | void UNIFCloseWRAM(void) |
469 | { |
470 | if(fssp) |
471 | fclose(fssp); |
472 | fssp=0; |
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473 | #ifdef GP2X |
474 | sync(); |
475 | #endif |
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476 | } |