d97315ac |
1 | /* FCE Ultra - NES/Famicom Emulator |
2 | * |
3 | * Copyright notice for this file: |
4 | * Copyright (C) 2002 Xodnizel |
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 | /* None of this code should use any of the iNES bank switching wrappers. */ |
22 | |
23 | #include "mapinc.h" |
24 | |
25 | static void (*sfun)(int P); |
26 | static void (*psfun)(void); |
27 | |
28 | void MMC5RunSound(int Count); |
29 | //void MMC5RunSoundHQ(void); |
30 | |
31 | static INLINE void MMC5SPRVROM_BANK1(uint32 A,uint32 V) |
32 | { |
33 | if(CHRptr[0]) |
34 | { |
35 | V&=CHRmask1[0]; |
36 | MMC5SPRVPage[(A)>>10]=&CHRptr[0][(V)<<10]-(A); |
37 | } |
38 | } |
39 | |
40 | static INLINE void MMC5BGVROM_BANK1(uint32 A,uint32 V) {if(CHRptr[0]){V&=CHRmask1[0];MMC5BGVPage[(A)>>10]=&CHRptr[0][(V)<<10]-(A);}} |
41 | |
42 | static INLINE void MMC5SPRVROM_BANK2(uint32 A,uint32 V) {if(CHRptr[0]){V&=CHRmask2[0];MMC5SPRVPage[(A)>>10]=MMC5SPRVPage[((A)>>10)+1]=&CHRptr[0][(V)<<11]-(A);}} |
43 | static INLINE void MMC5BGVROM_BANK2(uint32 A,uint32 V) {if(CHRptr[0]){V&=CHRmask2[0];MMC5BGVPage[(A)>>10]=MMC5BGVPage[((A)>>10)+1]=&CHRptr[0][(V)<<11]-(A);}} |
44 | |
45 | static INLINE void MMC5SPRVROM_BANK4(uint32 A,uint32 V) {if(CHRptr[0]){V&=CHRmask4[0];MMC5SPRVPage[(A)>>10]=MMC5SPRVPage[((A)>>10)+1]= MMC5SPRVPage[((A)>>10)+2]=MMC5SPRVPage[((A)>>10)+3]=&CHRptr[0][(V)<<12]-(A);}} |
46 | static INLINE void MMC5BGVROM_BANK4(uint32 A,uint32 V) {if(CHRptr[0]){V&=CHRmask4[0];MMC5BGVPage[(A)>>10]=MMC5BGVPage[((A)>>10)+1]=MMC5BGVPage[((A)>>10)+2]=MMC5BGVPage[((A)>>10)+3]=&CHRptr[0][(V)<<12]-(A);}} |
47 | |
48 | static INLINE void MMC5SPRVROM_BANK8(uint32 V) {if(CHRptr[0]){V&=CHRmask8[0];MMC5SPRVPage[0]=MMC5SPRVPage[1]=MMC5SPRVPage[2]=MMC5SPRVPage[3]=MMC5SPRVPage[4]=MMC5SPRVPage[5]=MMC5SPRVPage[6]=MMC5SPRVPage[7]=&CHRptr[0][(V)<<13];}} |
49 | static INLINE void MMC5BGVROM_BANK8(uint32 V) {if(CHRptr[0]){V&=CHRmask8[0];MMC5BGVPage[0]=MMC5BGVPage[1]=MMC5BGVPage[2]=MMC5BGVPage[3]=MMC5BGVPage[4]=MMC5BGVPage[5]=MMC5BGVPage[6]=MMC5BGVPage[7]=&CHRptr[0][(V)<<13];}} |
50 | |
51 | static uint8 PRGBanks[4]; |
52 | static uint8 WRAMPage; |
53 | static uint8 CHRBanksA[8], CHRBanksB[4]; |
54 | static uint8 WRAMMaskEnable[2]; |
55 | static uint8 ABMode; /* A=0, B=1 */ |
56 | |
57 | static uint8 IRQScanline,IRQEnable; |
58 | static uint8 CHRMode, NTAMirroring, NTFill, ATFill; |
59 | |
60 | static uint8 MMC5IRQR; |
61 | static uint8 MMC5LineCounter; |
62 | static uint8 mmc5psize, mmc5vsize; |
63 | static uint8 mul[2]; |
64 | |
65 | static uint8 *WRAM=NULL; |
66 | static uint8 *MMC5fill=NULL; |
67 | static uint8 *ExRAM=NULL; |
68 | |
69 | static uint8 MMC5WRAMsize; |
70 | static uint8 MMC5WRAMIndex[8]; |
71 | |
72 | static uint8 MMC5ROMWrProtect[4]; |
73 | static uint8 MMC5MemIn[5]; |
74 | |
75 | static void MMC5CHRA(void); |
76 | static void MMC5CHRB(void); |
77 | |
78 | typedef struct __cartdata { |
79 | uint32 crc32; |
80 | uint8 size; |
81 | } cartdata; |
82 | |
83 | |
84 | // ETROM seems to have 16KB of WRAM, ELROM seems to have 8KB |
85 | // EWROM seems to have 32KB of WRAM |
86 | |
87 | #define MMC5_NOCARTS 14 |
88 | cartdata MMC5CartList[MMC5_NOCARTS]= |
89 | { |
90 | {0x9c18762b,2}, /* L'Empereur */ |
91 | {0x26533405,2}, |
92 | {0x6396b988,2}, |
93 | |
94 | {0xaca15643,2}, /* Uncharted Waters */ |
95 | {0xfe3488d1,2}, /* Dai Koukai Jidai */ |
96 | |
97 | {0x15fe6d0f,2}, /* BKAC */ |
98 | {0x39f2ce4b,2}, /* Suikoden */ |
99 | |
100 | {0x8ce478db,2}, /* Nobunaga's Ambition 2 */ |
101 | {0xeee9a682,2}, |
102 | |
103 | {0x1ced086f,2}, /* Ishin no Arashi */ |
104 | |
105 | {0xf540677b,4}, /* Nobunaga...Bushou Fuuun Roku */ |
106 | |
107 | {0x6f4e4312,4}, /* Aoki Ookami..Genchou */ |
108 | |
109 | {0xf011e490,4}, /* Romance of the 3 Kingdoms 2 */ |
110 | {0x184c2124,4}, /* Sangokushi 2 */ |
111 | }; |
112 | |
113 | |
114 | int DetectMMC5WRAMSize(uint32 crc32) |
115 | { |
116 | int x; |
117 | for(x=0;x<MMC5_NOCARTS;x++) |
118 | if(crc32==MMC5CartList[x].crc32) |
119 | { |
120 | FCEU_printf(" >8KB external WRAM present. Use UNIF if you hack the ROM image.\n"); |
121 | return(MMC5CartList[x].size*8); |
122 | } |
123 | return(8); |
124 | } |
125 | |
126 | static void BuildWRAMSizeTable(void) |
127 | { |
128 | int x; |
129 | for(x=0;x<8;x++) |
130 | { |
131 | switch(MMC5WRAMsize) |
132 | { |
133 | case 0: MMC5WRAMIndex[x]=255; break; |
134 | case 1: MMC5WRAMIndex[x]=(x>3)?255:0; break; |
135 | case 2: MMC5WRAMIndex[x]=(x&4)>>2; break; |
136 | case 4: MMC5WRAMIndex[x]=(x>3)?255:(x&3); break; |
137 | } |
138 | } |
139 | } |
140 | |
141 | static void MMC5CHRA(void) |
142 | { |
143 | int x; |
144 | switch(mmc5vsize&3) |
145 | { |
146 | case 0: setchr8(CHRBanksA[7]); |
147 | MMC5SPRVROM_BANK8(CHRBanksA[7]); |
148 | break; |
149 | case 1: setchr4(0x0000,CHRBanksA[3]); |
150 | setchr4(0x1000,CHRBanksA[7]); |
151 | MMC5SPRVROM_BANK4(0x0000,CHRBanksA[3]); |
152 | MMC5SPRVROM_BANK4(0x1000,CHRBanksA[7]); |
153 | break; |
154 | case 2: setchr2(0x0000,CHRBanksA[1]); |
155 | setchr2(0x0800,CHRBanksA[3]); |
156 | setchr2(0x1000,CHRBanksA[5]); |
157 | setchr2(0x1800,CHRBanksA[7]); |
158 | MMC5SPRVROM_BANK2(0x0000,CHRBanksA[1]); |
159 | MMC5SPRVROM_BANK2(0x0800,CHRBanksA[3]); |
160 | MMC5SPRVROM_BANK2(0x1000,CHRBanksA[5]); |
161 | MMC5SPRVROM_BANK2(0x1800,CHRBanksA[7]); |
162 | break; |
163 | case 3: for(x=0;x<8;x++) |
164 | { |
165 | setchr1(x<<10,CHRBanksA[x]); |
166 | MMC5SPRVROM_BANK1(x<<10,CHRBanksA[x]); |
167 | } |
168 | break; |
169 | } |
170 | } |
171 | |
172 | static void MMC5CHRB(void) |
173 | { |
174 | int x; |
175 | switch(mmc5vsize&3) |
176 | { |
177 | case 0: setchr8(CHRBanksB[3]); |
178 | MMC5BGVROM_BANK8(CHRBanksB[3]); |
179 | break; |
180 | case 1: setchr4(0x0000,CHRBanksB[3]); |
181 | setchr4(0x1000,CHRBanksB[3]); |
182 | MMC5BGVROM_BANK4(0x0000,CHRBanksB[3]); |
183 | MMC5BGVROM_BANK4(0x1000,CHRBanksB[3]); |
184 | break; |
185 | case 2: setchr2(0x0000,CHRBanksB[1]); |
186 | setchr2(0x0800,CHRBanksB[3]); |
187 | setchr2(0x1000,CHRBanksB[1]); |
188 | setchr2(0x1800,CHRBanksB[3]); |
189 | MMC5BGVROM_BANK2(0x0000,CHRBanksB[1]); |
190 | MMC5BGVROM_BANK2(0x0800,CHRBanksB[3]); |
191 | MMC5BGVROM_BANK2(0x1000,CHRBanksB[1]); |
192 | MMC5BGVROM_BANK2(0x1800,CHRBanksB[3]); |
193 | break; |
194 | case 3: for(x=0;x<8;x++) |
195 | { |
196 | setchr1(x<<10,CHRBanksB[x&3]); |
197 | MMC5BGVROM_BANK1(x<<10,CHRBanksB[x&3]); |
198 | } |
199 | break; |
200 | } |
201 | } |
202 | |
203 | static void FASTAPASS(2) MMC5WRAM(uint32 A, uint32 V) |
204 | { |
205 | //printf("%02x\n",V); |
206 | V=MMC5WRAMIndex[V&7]; |
207 | if(V!=255) |
208 | { |
209 | setprg8r(0x10,A,V); |
210 | MMC5MemIn[(A-0x6000)>>13]=1; |
211 | } |
212 | else |
213 | MMC5MemIn[(A-0x6000)>>13]=0; |
214 | } |
215 | |
216 | static void MMC5PRG(void) |
217 | { |
218 | int x; |
219 | switch(mmc5psize&3) |
220 | { |
221 | case 0: MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]= |
222 | MMC5ROMWrProtect[2]=MMC5ROMWrProtect[3]=1; |
223 | setprg32(0x8000,((PRGBanks[1]&0x7F)>>2)); |
224 | for(x=0;x<4;x++) |
225 | MMC5MemIn[1+x]=1; |
226 | break; |
227 | case 1: if(PRGBanks[1]&0x80) |
228 | { |
229 | MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=1; |
230 | setprg16(0x8000,(PRGBanks[1]>>1)); |
231 | MMC5MemIn[1]=MMC5MemIn[2]=1; |
232 | } |
233 | else |
234 | { |
235 | MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=0; |
236 | MMC5WRAM(0x8000,PRGBanks[1]&7&0xFE); |
237 | MMC5WRAM(0xA000,(PRGBanks[1]&7&0xFE)+1); |
238 | } |
239 | MMC5MemIn[3]=MMC5MemIn[4]=1; |
240 | MMC5ROMWrProtect[2]=MMC5ROMWrProtect[3]=1; |
241 | setprg16(0xC000,(PRGBanks[3]&0x7F)>>1); |
242 | break; |
243 | case 2: if(PRGBanks[1]&0x80) |
244 | { |
245 | MMC5MemIn[1]=MMC5MemIn[2]=1; |
246 | MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=1; |
247 | setprg16(0x8000,(PRGBanks[1]&0x7F)>>1); |
248 | } |
249 | else |
250 | { |
251 | MMC5ROMWrProtect[0]=MMC5ROMWrProtect[1]=0; |
252 | MMC5WRAM(0x8000,PRGBanks[1]&7&0xFE); |
253 | MMC5WRAM(0xA000,(PRGBanks[1]&7&0xFE)+1); |
254 | } |
255 | if(PRGBanks[2]&0x80) |
256 | { |
257 | MMC5ROMWrProtect[2]=1; |
258 | MMC5MemIn[3]=1; |
259 | setprg8(0xC000,PRGBanks[2]&0x7F); |
260 | } |
261 | else |
262 | { |
263 | MMC5ROMWrProtect[2]=0; |
264 | MMC5WRAM(0xC000,PRGBanks[2]&7); |
265 | } |
266 | MMC5MemIn[4]=1; |
267 | MMC5ROMWrProtect[3]=1; |
268 | setprg8(0xE000,PRGBanks[3]&0x7F); |
269 | break; |
270 | case 3: for(x=0;x<3;x++) |
271 | if(PRGBanks[x]&0x80) |
272 | { |
273 | MMC5ROMWrProtect[x]=1; |
274 | setprg8(0x8000+(x<<13),PRGBanks[x]&0x7F); |
275 | MMC5MemIn[1+x]=1; |
276 | } |
277 | else |
278 | { |
279 | MMC5ROMWrProtect[x]=0; |
280 | MMC5WRAM(0x8000+(x<<13),PRGBanks[x]&7); |
281 | } |
282 | MMC5MemIn[4]=1; |
283 | MMC5ROMWrProtect[3]=1; |
284 | setprg8(0xE000,PRGBanks[3]&0x7F); |
285 | break; |
286 | } |
287 | } |
288 | |
289 | static DECLFW(Mapper5_write) |
290 | { |
291 | if(A>=0x5120&&A<=0x5127) |
292 | { |
293 | ABMode = 0; |
294 | CHRBanksA[A&7]=V; |
295 | MMC5CHRA(); |
296 | } |
297 | else switch(A) |
298 | { |
299 | case 0x5105: { |
300 | int x; |
301 | for(x=0;x<4;x++) |
302 | { |
303 | switch((V>>(x<<1))&3) |
304 | { |
305 | case 0:PPUNTARAM|=1<<x;vnapage[x]=NTARAM;break; |
306 | case 1:PPUNTARAM|=1<<x;vnapage[x]=NTARAM+0x400;break; |
307 | case 2:PPUNTARAM|=1<<x;vnapage[x]=ExRAM;break; |
308 | case 3:PPUNTARAM&=~(1<<x);vnapage[x]=MMC5fill;break; |
309 | } |
310 | } |
311 | } |
312 | NTAMirroring=V; |
313 | break; |
314 | case 0x5113: WRAMPage=V;MMC5WRAM(0x6000,V&7);break; |
315 | case 0x5100: mmc5psize=V;MMC5PRG();break; |
316 | case 0x5101: mmc5vsize=V; |
317 | if(!ABMode) |
318 | { MMC5CHRB();MMC5CHRA();} |
319 | else |
320 | { MMC5CHRA();MMC5CHRB();} |
321 | break; |
322 | case 0x5114: |
323 | case 0x5115: |
324 | case 0x5116: |
325 | case 0x5117: PRGBanks[A&3]=V;MMC5PRG();break; |
326 | case 0x5128: |
327 | case 0x5129: |
328 | case 0x512a: |
329 | case 0x512b: ABMode=1; |
330 | CHRBanksB[A&3]=V; |
331 | MMC5CHRB(); |
332 | break; |
333 | case 0x5102: WRAMMaskEnable[0]=V;break; |
334 | case 0x5103: WRAMMaskEnable[1]=V;break; |
335 | case 0x5104: CHRMode=V;MMC5HackCHRMode=V&3;break; |
336 | case 0x5106: if(V!=NTFill) |
337 | { |
338 | uint32 t; |
339 | t=V|(V<<8)|(V<<16)|(V<<24); |
340 | FCEU_dwmemset(MMC5fill,t,0x3c0); |
341 | } |
342 | NTFill=V; |
343 | break; |
344 | case 0x5107: if(V!=ATFill) |
345 | { |
346 | unsigned char moop; |
347 | uint32 t; |
348 | moop=V|(V<<2)|(V<<4)|(V<<6); |
349 | t=moop|(moop<<8)|(moop<<16)|(moop<<24); |
350 | FCEU_dwmemset(MMC5fill+0x3c0,t,0x40); |
351 | } |
352 | ATFill=V; |
353 | break; |
354 | case 0x5200: MMC5HackSPMode=V;break; |
355 | case 0x5201: MMC5HackSPScroll=(V>>3)&0x1F;break; |
356 | case 0x5202: MMC5HackSPPage=V&0x3F;break; |
357 | case 0x5203: X6502_IRQEnd(FCEU_IQEXT);IRQScanline=V;break; |
358 | case 0x5204: X6502_IRQEnd(FCEU_IQEXT);IRQEnable=V&0x80;break; |
359 | case 0x5205: mul[0]=V;break; |
360 | case 0x5206: mul[1]=V;break; |
361 | } |
362 | } |
363 | |
364 | static DECLFR(MMC5_ReadROMRAM) |
365 | { |
366 | if(MMC5MemIn[(A-0x6000)>>13]) |
367 | return Page[A>>11][A]; |
368 | else |
369 | return X.DB; |
370 | } |
371 | |
372 | static DECLFW(MMC5_WriteROMRAM) |
373 | { |
374 | if(A>=0x8000) |
375 | if(MMC5ROMWrProtect[(A-0x8000)>>13]) return; |
376 | if(MMC5MemIn[(A-0x6000)>>13]) |
377 | if(((WRAMMaskEnable[0]&3)|((WRAMMaskEnable[1]&3)<<2)) == 6) Page[A>>11][A]=V; |
378 | } |
379 | |
380 | static DECLFW(MMC5_ExRAMWr) |
381 | { |
382 | if(MMC5HackCHRMode!=3) |
383 | ExRAM[A&0x3ff]=V; |
384 | } |
385 | |
386 | static DECLFR(MMC5_ExRAMRd) |
387 | { |
388 | /* Not sure if this is correct, so I'll comment it out for now. */ |
389 | //if(MMC5HackCHRMode>=2) |
390 | return ExRAM[A&0x3ff]; |
391 | //else |
392 | // return(X.DB); |
393 | } |
394 | |
395 | static DECLFR(MMC5_read) |
396 | { |
397 | switch(A) |
398 | { |
399 | case 0x5204: X6502_IRQEnd(FCEU_IQEXT); |
400 | { |
401 | uint8 x; |
402 | x=MMC5IRQR; |
403 | if(!fceuindbg) |
404 | MMC5IRQR&=0x40; |
405 | return x; |
406 | } |
407 | case 0x5205: return (mul[0]*mul[1]); |
408 | case 0x5206: return ((mul[0]*mul[1])>>8); |
409 | } |
410 | return(X.DB); |
411 | } |
412 | |
413 | void MMC5Synco(void) |
414 | { |
415 | int x; |
416 | |
417 | MMC5PRG(); |
418 | for(x=0;x<4;x++) |
419 | { |
420 | switch((NTAMirroring>>(x<<1))&3) |
421 | { |
422 | case 0:PPUNTARAM|=1<<x;vnapage[x]=NTARAM;break; |
423 | case 1:PPUNTARAM|=1<<x;vnapage[x]=NTARAM+0x400;break; |
424 | case 2:PPUNTARAM|=1<<x;vnapage[x]=ExRAM;break; |
425 | case 3:PPUNTARAM&=~(1<<x);vnapage[x]=MMC5fill;break; |
426 | } |
427 | } |
428 | MMC5WRAM(0x6000,WRAMPage&7); |
429 | if(!ABMode) |
430 | { |
431 | MMC5CHRB(); |
432 | MMC5CHRA(); |
433 | } |
434 | else |
435 | { |
436 | MMC5CHRA(); |
437 | MMC5CHRB(); |
438 | } |
439 | { |
440 | uint32 t; |
441 | t=NTFill|(NTFill<<8)|(NTFill<<16)|(NTFill<<24); |
442 | FCEU_dwmemset(MMC5fill,t,0x3c0); |
443 | } |
444 | { |
445 | unsigned char moop; |
446 | uint32 t; |
447 | moop=ATFill|(ATFill<<2)|(ATFill<<4)|(ATFill<<6); |
448 | t=moop|(moop<<8)|(moop<<16)|(moop<<24); |
449 | FCEU_dwmemset(MMC5fill+0x3c0,t,0x40); |
450 | } |
451 | X6502_IRQEnd(FCEU_IQEXT); |
452 | MMC5HackCHRMode=CHRMode&3; |
453 | } |
454 | |
455 | void MMC5_hb(int scanline) |
456 | { |
457 | if(scanline==240) |
458 | { |
459 | MMC5LineCounter=0; |
460 | MMC5IRQR=0x40; |
461 | return; |
462 | } |
463 | if(MMC5LineCounter<240) |
464 | { |
465 | if(MMC5LineCounter==IRQScanline) |
466 | { |
467 | MMC5IRQR|=0x80; |
468 | if(IRQEnable&0x80) |
469 | X6502_IRQBegin(FCEU_IQEXT); |
470 | } |
471 | MMC5LineCounter++; |
472 | } |
473 | if(MMC5LineCounter==240) |
474 | MMC5IRQR=0; |
475 | } |
476 | |
477 | void MMC5_StateRestore(int version) |
478 | { |
479 | MMC5Synco(); |
480 | } |
481 | |
482 | typedef struct { |
483 | uint16 wl[2]; |
484 | uint8 env[2]; |
485 | uint8 enable; |
486 | uint8 running; |
487 | uint8 raw; |
488 | uint8 rawcontrol; |
489 | int32 dcount[2]; |
490 | int32 BC[3]; |
491 | int32 vcount[2]; |
492 | } MMC5APU; |
493 | |
494 | static MMC5APU MMC5Sound; |
495 | |
496 | |
497 | static void Do5PCM() |
498 | { |
499 | int32 V; |
500 | int32 start,end; |
501 | |
502 | start=MMC5Sound.BC[2]; |
503 | end=(SOUNDTS<<16)/soundtsinc; |
504 | if(end<=start) return; |
505 | MMC5Sound.BC[2]=end; |
506 | |
507 | if(!(MMC5Sound.rawcontrol&0x40) && MMC5Sound.raw) |
508 | for(V=start;V<end;V++) |
509 | Wave[V>>4]+=MMC5Sound.raw<<1; |
510 | } |
511 | |
512 | #if 0 |
513 | static void Do5PCMHQ() |
514 | { |
515 | int32 V; |
516 | if(!(MMC5Sound.rawcontrol&0x40) && MMC5Sound.raw) |
517 | for(V=MMC5Sound.BC[2];V<SOUNDTS;V++) |
518 | WaveHi[V]+=MMC5Sound.raw<<5; |
519 | MMC5Sound.BC[2]=SOUNDTS; |
520 | } |
521 | #endif |
522 | |
523 | static DECLFW(Mapper5_SW) |
524 | { |
525 | A&=0x1F; |
526 | |
527 | GameExpSound.Fill=MMC5RunSound; |
528 | GameExpSound.HiFill=0;//MMC5RunSoundHQ; |
529 | |
530 | switch(A) |
531 | { |
532 | case 0x10:if(psfun) psfun();MMC5Sound.rawcontrol=V;break; |
533 | case 0x11:if(psfun) psfun();MMC5Sound.raw=V;break; |
534 | |
535 | case 0x0: |
536 | case 0x4://printf("%04x:$%02x\n",A,V&0x30); |
537 | if(sfun) sfun(A>>2); |
538 | MMC5Sound.env[A>>2]=V; |
539 | break; |
540 | case 0x2: |
541 | case 0x6: if(sfun) sfun(A>>2); |
542 | MMC5Sound.wl[A>>2]&=~0x00FF; |
543 | MMC5Sound.wl[A>>2]|=V&0xFF; |
544 | break; |
545 | case 0x3: |
546 | case 0x7://printf("%04x:$%02x\n",A,V>>3); |
547 | MMC5Sound.wl[A>>2]&=~0x0700; |
548 | MMC5Sound.wl[A>>2]|=(V&0x07)<<8; |
549 | MMC5Sound.running|=1<<(A>>2); |
550 | break; |
551 | case 0x15:if(sfun) |
552 | { |
553 | sfun(0); |
554 | sfun(1); |
555 | } |
556 | MMC5Sound.running&=V; |
557 | MMC5Sound.enable=V; |
558 | //printf("%02x\n",V); |
559 | break; |
560 | } |
561 | } |
562 | |
563 | static void Do5SQ(int P) |
564 | { |
565 | static int tal[4]={1,2,4,6}; |
566 | int32 V,amp,rthresh,wl; |
567 | int32 start,end; |
568 | |
569 | start=MMC5Sound.BC[P]; |
570 | end=(SOUNDTS<<16)/soundtsinc; |
571 | if(end<=start) return; |
572 | MMC5Sound.BC[P]=end; |
573 | |
574 | wl=MMC5Sound.wl[P]+1; |
575 | amp=(MMC5Sound.env[P]&0xF)<<4; |
576 | rthresh=tal[(MMC5Sound.env[P]&0xC0)>>6]; |
577 | |
578 | if(wl>=8 && (MMC5Sound.running&(P+1))) |
579 | { |
580 | int dc,vc; |
581 | |
582 | wl<<=18; |
583 | dc=MMC5Sound.dcount[P]; |
584 | vc=MMC5Sound.vcount[P]; |
585 | |
586 | for(V=start;V<end;V++) |
587 | { |
588 | if(dc<rthresh) |
589 | Wave[V>>4]+=amp; |
590 | vc-=nesincsize; |
591 | while(vc<=0) |
592 | { |
593 | vc+=wl; |
594 | dc=(dc+1)&7; |
595 | } |
596 | } |
597 | MMC5Sound.dcount[P]=dc; |
598 | MMC5Sound.vcount[P]=vc; |
599 | } |
600 | } |
601 | |
602 | #if 0 |
603 | static void Do5SQHQ(int P) |
604 | { |
605 | static int tal[4]={1,2,4,6}; |
606 | int32 V,amp,rthresh,wl; |
607 | |
608 | wl=MMC5Sound.wl[P]+1; |
609 | amp=((MMC5Sound.env[P]&0xF)<<8); |
610 | rthresh=tal[(MMC5Sound.env[P]&0xC0)>>6]; |
611 | |
612 | if(wl>=8 && (MMC5Sound.running&(P+1))) |
613 | { |
614 | int dc,vc; |
615 | |
616 | wl<<=1; |
617 | |
618 | dc=MMC5Sound.dcount[P]; |
619 | vc=MMC5Sound.vcount[P]; |
620 | for(V=MMC5Sound.BC[P];V<SOUNDTS;V++) |
621 | { |
622 | if(dc<rthresh) |
623 | WaveHi[V]+=amp; |
624 | vc--; |
625 | if(vc<=0) /* Less than zero when first started. */ |
626 | { |
627 | vc=wl; |
628 | dc=(dc+1)&7; |
629 | } |
630 | } |
631 | MMC5Sound.dcount[P]=dc; |
632 | MMC5Sound.vcount[P]=vc; |
633 | } |
634 | MMC5Sound.BC[P]=SOUNDTS; |
635 | } |
636 | |
637 | void MMC5RunSoundHQ(void) |
638 | { |
639 | Do5SQHQ(0); |
640 | Do5SQHQ(1); |
641 | Do5PCMHQ(); |
642 | } |
643 | |
644 | void MMC5HiSync(int32 ts) |
645 | { |
646 | int x; |
647 | for(x=0;x<3;x++) MMC5Sound.BC[x]=ts; |
648 | } |
649 | #endif |
650 | |
651 | void MMC5RunSound(int Count) |
652 | { |
653 | int x; |
654 | Do5SQ(0); |
655 | Do5SQ(1); |
656 | Do5PCM(); |
657 | for(x=0;x<3;x++) |
658 | MMC5Sound.BC[x]=Count; |
659 | } |
660 | |
661 | void Mapper5_ESI(void) |
662 | { |
663 | GameExpSound.RChange=Mapper5_ESI; |
664 | if(FSettings.SndRate) |
665 | { |
666 | #if 0 |
667 | if(FSettings.soundq>=1) |
668 | { |
669 | sfun=Do5SQHQ; |
670 | psfun=Do5PCMHQ; |
671 | } |
672 | else |
673 | #endif |
674 | { |
675 | sfun=Do5SQ; |
676 | psfun=Do5PCM; |
677 | } |
678 | } |
679 | else |
680 | { |
681 | sfun=0; |
682 | psfun=0; |
683 | } |
684 | memset(MMC5Sound.BC,0,sizeof(MMC5Sound.BC)); |
685 | memset(MMC5Sound.vcount,0,sizeof(MMC5Sound.vcount)); |
686 | GameExpSound.HiSync=0;//MMC5HiSync; |
687 | } |
688 | |
689 | void NSFMMC5_Init(void) |
690 | { |
691 | memset(&MMC5Sound,0,sizeof(MMC5Sound)); |
692 | mul[0]=mul[1]=0; |
693 | ExRAM=(uint8*)FCEU_gmalloc(1024); |
694 | Mapper5_ESI(); |
695 | SetWriteHandler(0x5c00,0x5fef,MMC5_ExRAMWr); |
696 | SetReadHandler(0x5c00,0x5fef,MMC5_ExRAMRd); |
697 | MMC5HackCHRMode=2; |
698 | SetWriteHandler(0x5000,0x5015,Mapper5_SW); |
699 | SetWriteHandler(0x5205,0x5206,Mapper5_write); |
700 | SetReadHandler(0x5205,0x5206,MMC5_read); |
701 | } |
702 | |
703 | void NSFMMC5_Close(void) |
704 | { |
705 | FCEU_gfree(ExRAM); |
706 | ExRAM=0; |
707 | } |
708 | |
709 | static void GenMMC5Reset(void) |
710 | { |
711 | int x; |
712 | |
713 | for(x=0;x<4;x++) PRGBanks[x]=~0; |
714 | for(x=0;x<8;x++) CHRBanksA[x]=~0; |
715 | for(x=0;x<4;x++) CHRBanksB[x]=~0; |
716 | WRAMMaskEnable[0]=WRAMMaskEnable[1]=~0; |
717 | |
718 | mmc5psize=mmc5vsize=3; |
719 | CHRMode=0; |
720 | |
721 | NTAMirroring=NTFill=ATFill=0xFF; |
722 | |
723 | MMC5Synco(); |
724 | |
725 | SetWriteHandler(0x4020,0x5bff,Mapper5_write); |
726 | SetReadHandler(0x4020,0x5bff,MMC5_read); |
727 | |
728 | SetWriteHandler(0x5c00,0x5fff,MMC5_ExRAMWr); |
729 | SetReadHandler(0x5c00,0x5fff,MMC5_ExRAMRd); |
730 | |
731 | SetWriteHandler(0x6000,0xFFFF,MMC5_WriteROMRAM); |
732 | SetReadHandler(0x6000,0xFFFF,MMC5_ReadROMRAM); |
733 | |
734 | SetWriteHandler(0x5000,0x5015,Mapper5_SW); |
735 | SetWriteHandler(0x5205,0x5206,Mapper5_write); |
736 | SetReadHandler(0x5205,0x5206,MMC5_read); |
737 | |
738 | //GameHBIRQHook=MMC5_hb; |
739 | FCEU_CheatAddRAM(8,0x6000,WRAM); |
740 | FCEU_CheatAddRAM(1,0x5c00,ExRAM); |
741 | } |
742 | |
743 | static SFORMAT MMC5_StateRegs[]={ |
744 | { PRGBanks, 4, "PRGB"}, |
745 | { CHRBanksA, 8, "CHRA"}, |
746 | { CHRBanksB, 4, "CHRB"}, |
747 | { &WRAMPage, 1, "WRMP"}, |
748 | { WRAMMaskEnable, 2, "WRME"}, |
749 | { &ABMode, 1, "ABMD"}, |
750 | { &IRQScanline, 1, "IRQS"}, |
751 | { &IRQEnable, 1, "IRQE"}, |
752 | { &CHRMode, 1, "CHRM"}, |
753 | { &NTAMirroring, 1, "NTAM"}, |
754 | { &NTFill, 1, "NTFL"}, |
755 | { &ATFill, 1, "ATFL"}, |
756 | |
757 | { &MMC5Sound.wl[0], 2|FCEUSTATE_RLSB, "SDW0"}, |
758 | { &MMC5Sound.wl[1], 2|FCEUSTATE_RLSB, "SDW1"}, |
759 | { MMC5Sound.env, 2, "SDEV"}, |
760 | { &MMC5Sound.enable, 1, "SDEN"}, |
761 | { &MMC5Sound.running, 1, "SDRU"}, |
762 | { &MMC5Sound.raw, 1, "SDRW"}, |
763 | { &MMC5Sound.rawcontrol, 1, "SDRC"}, |
764 | {0} |
765 | }; |
766 | |
767 | static void GenMMC5_Init(CartInfo *info, int wsize, int battery) |
768 | { |
769 | if(wsize) |
770 | { |
771 | WRAM=(uint8*)FCEU_gmalloc(wsize*1024); |
772 | SetupCartPRGMapping(0x10,WRAM,wsize*1024,1); |
773 | AddExState(WRAM, wsize*1024, 0, "WRAM"); |
774 | } |
775 | |
776 | MMC5fill=(uint8*)FCEU_gmalloc(1024); |
777 | ExRAM=(uint8*)FCEU_gmalloc(1024); |
778 | |
779 | AddExState(MMC5_StateRegs, ~0, 0, 0); |
780 | AddExState(WRAM, wsize*1024, 0, "WRAM"); |
781 | AddExState(ExRAM, 1024, 0, "ERAM"); |
782 | AddExState(&MMC5HackSPMode, 1, 0, "SPLM"); |
783 | AddExState(&MMC5HackSPScroll, 1, 0, "SPLS"); |
784 | AddExState(&MMC5HackSPPage, 1, 0, "SPLP"); |
785 | |
786 | MMC5WRAMsize=wsize/8; |
787 | BuildWRAMSizeTable(); |
788 | GameStateRestore=MMC5_StateRestore; |
789 | info->Power=GenMMC5Reset; |
790 | |
791 | if(battery) |
792 | { |
793 | info->SaveGame[0]=WRAM; |
794 | if(wsize<=16) |
795 | info->SaveGameLen[0]=8192; |
796 | else |
797 | info->SaveGameLen[0]=32768; |
798 | } |
799 | |
800 | MMC5HackVROMMask=CHRmask4[0]; |
801 | MMC5HackExNTARAMPtr=ExRAM; |
802 | MMC5Hack=1; |
803 | MMC5HackVROMPTR=CHRptr[0]; |
804 | MMC5HackCHRMode=0; |
805 | MMC5HackSPMode=MMC5HackSPScroll=MMC5HackSPPage=0; |
806 | Mapper5_ESI(); |
807 | } |
808 | |
809 | void Mapper5_Init(CartInfo *info) |
810 | { |
811 | GenMMC5_Init(info, DetectMMC5WRAMSize(info->CRC32), info->battery); |
812 | } |
813 | |
814 | // ELROM seems to have 0KB of WRAM |
815 | // EKROM seems to have 8KB of WRAM |
816 | // ETROM seems to have 16KB of WRAM |
817 | // EWROM seems to have 32KB of WRAM |
818 | |
819 | // ETROM and EWROM are battery-backed, EKROM isn't. |
820 | |
821 | void ETROM_Init(CartInfo *info) |
822 | { |
823 | GenMMC5_Init(info, 16,info->battery); |
824 | } |
825 | |
826 | void ELROM_Init(CartInfo *info) |
827 | { |
828 | GenMMC5_Init(info,0,0); |
829 | } |
830 | |
831 | void EWROM_Init(CartInfo *info) |
832 | { |
833 | GenMMC5_Init(info,32,info->battery); |
834 | } |
835 | |
836 | void EKROM_Init(CartInfo *info) |
837 | { |
838 | GenMMC5_Init(info,8,info->battery); |
839 | } |