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[pcsx_rearmed.git] / plugins / dfsound / registers.c
CommitLineData
ef79bbde
P		 1/***************************************************************************\r
2 registers.c - description\r
3 -------------------\r
4 begin : Wed May 15 2002\r
5 copyright : (C) 2002 by Pete Bernert\r
6 email : BlackDove@addcom.de\r
7 ***************************************************************************/\r
8/***************************************************************************\r
9 * *\r
10 * This program is free software; you can redistribute it and/or modify *\r
11 * it under the terms of the GNU General Public License as published by *\r
12 * the Free Software Foundation; either version 2 of the License, or *\r
13 * (at your option) any later version. See also the license.txt file for *\r
14 * additional informations. *\r
15 * *\r
16 ***************************************************************************/\r
17\r
18#include "stdafx.h"\r
19\r
20#define _IN_REGISTERS\r
21\r
22#include "externals.h"\r
23#include "registers.h"\r
24#include "regs.h"\r
ef79bbde
P		 25\r
26/*\r
27// adsr time values (in ms) by James Higgs ... see the end of\r
28// the adsr.c source for details\r
29\r
30#define ATTACK_MS 514L\r
31#define DECAYHALF_MS 292L\r
32#define DECAY_MS 584L\r
33#define SUSTAIN_MS 450L\r
34#define RELEASE_MS 446L\r
35*/\r
36\r
37// we have a timebase of 1.020408f ms, not 1 ms... so adjust adsr defines\r
38#define ATTACK_MS 494L\r
39#define DECAYHALF_MS 286L\r
40#define DECAY_MS 572L\r
41#define SUSTAIN_MS 441L\r
42#define RELEASE_MS 437L\r
43\r
44////////////////////////////////////////////////////////////////////////\r
45// WRITE REGISTERS: called by main emu\r
46////////////////////////////////////////////////////////////////////////\r
47\r
48void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val)\r
49{\r
50 const unsigned long r=reg&0xfff;\r
51 regArea[(r-0xc00)>>1] = val;\r
52\r
53 if(r>=0x0c00 && r<0x0d80) // some channel info?\r
54 {\r
55 int ch=(r>>4)-0xc0; // calc channel\r
56 switch(r&0x0f)\r
57 {\r
58 //------------------------------------------------// r volume\r
59 case 0: \r
60 SetVolumeL((unsigned char)ch,val);\r
61 break;\r
62 //------------------------------------------------// l volume\r
63 case 2: \r
64 SetVolumeR((unsigned char)ch,val);\r
65 break;\r
66 //------------------------------------------------// pitch\r
67 case 4: \r
68 SetPitch(ch,val);\r
69 break;\r
70 //------------------------------------------------// start\r
71 case 6: \r
b00afb77 72 // Brain Dead 13 - align to 16 boundary\r
73 s_chan[ch].pStart= spuMemC+(unsigned long)((val<<3)&~0xf);\r
ef79bbde
P		 74 break;\r
75 //------------------------------------------------// level with pre-calcs\r
76 case 8:\r
77 {\r
6d866bb7 78 const unsigned long lval=val;\r
ef79bbde
P		 79 //---------------------------------------------//\r
80 s_chan[ch].ADSRX.AttackModeExp=(lval&0x8000)?1:0; \r
81 s_chan[ch].ADSRX.AttackRate=(lval>>8) & 0x007f;\r
82 s_chan[ch].ADSRX.DecayRate=(lval>>4) & 0x000f;\r
83 s_chan[ch].ADSRX.SustainLevel=lval & 0x000f;\r
84 //---------------------------------------------//\r
6d866bb7 85#if 0\r
ef79bbde
P		 86 if(!iDebugMode) break;\r
87 //---------------------------------------------// stuff below is only for debug mode\r
88\r
89 s_chan[ch].ADSR.AttackModeExp=(lval&0x8000)?1:0; //0x007f\r
90\r
91 lx=(((lval>>8) & 0x007f)>>2); // attack time to run from 0 to 100% volume\r
92 lx=min(31,lx); // no overflow on shift!\r
93 if(lx) \r
94 { \r
95 lx = (1<<lx);\r
96 if(lx<2147483) lx=(lx*ATTACK_MS)/10000L; // another overflow check\r
97 else lx=(lx/10000L)*ATTACK_MS;\r
98 if(!lx) lx=1;\r
99 }\r
100 s_chan[ch].ADSR.AttackTime=lx; \r
101\r
102 s_chan[ch].ADSR.SustainLevel= // our adsr vol runs from 0 to 1024, so scale the sustain level\r
103 (1024*((lval) & 0x000f))/15;\r
104\r
105 lx=(lval>>4) & 0x000f; // decay:\r
106 if(lx) // our const decay value is time it takes from 100% to 0% of volume\r
107 {\r
108 lx = ((1<<(lx))*DECAY_MS)/10000L;\r
109 if(!lx) lx=1;\r
110 }\r
111 s_chan[ch].ADSR.DecayTime = // so calc how long does it take to run from 100% to the wanted sus level\r
112 (lx*(1024-s_chan[ch].ADSR.SustainLevel))/1024;\r
6d866bb7 113#endif\r
ef79bbde
P		 114 }\r
115 break;\r
116 //------------------------------------------------// adsr times with pre-calcs\r
117 case 10:\r
118 {\r
6d866bb7 119 const unsigned long lval=val;\r
ef79bbde
P		 120\r
121 //----------------------------------------------//\r
122 s_chan[ch].ADSRX.SustainModeExp = (lval&0x8000)?1:0;\r
123 s_chan[ch].ADSRX.SustainIncrease= (lval&0x4000)?0:1;\r
124 s_chan[ch].ADSRX.SustainRate = (lval>>6) & 0x007f;\r
125 s_chan[ch].ADSRX.ReleaseModeExp = (lval&0x0020)?1:0;\r
126 s_chan[ch].ADSRX.ReleaseRate = lval & 0x001f;\r
127 //----------------------------------------------//\r
6d866bb7 128#if 0\r
ef79bbde
P		 129 if(!iDebugMode) break;\r
130 //----------------------------------------------// stuff below is only for debug mode\r
131\r
132 s_chan[ch].ADSR.SustainModeExp = (lval&0x8000)?1:0;\r
133 s_chan[ch].ADSR.ReleaseModeExp = (lval&0x0020)?1:0;\r
134 \r
135 lx=((((lval>>6) & 0x007f)>>2)); // sustain time... often very high\r
136 lx=min(31,lx); // values are used to hold the volume\r
137 if(lx) // until a sound stop occurs\r
138 { // the highest value we reach (due to \r
139 lx = (1<<lx); // overflow checking) is: \r
140 if(lx<2147483) lx=(lx*SUSTAIN_MS)/10000L; // 94704 seconds = 1578 minutes = 26 hours... \r
141 else lx=(lx/10000L)*SUSTAIN_MS; // should be enuff... if the stop doesn't \r
142 if(!lx) lx=1; // come in this time span, I don't care :)\r
143 }\r
144 s_chan[ch].ADSR.SustainTime = lx;\r
145\r
146 lx=(lval & 0x001f);\r
147 s_chan[ch].ADSR.ReleaseVal =lx;\r
148 if(lx) // release time from 100% to 0%\r
149 { // note: the release time will be\r
150 lx = (1<<lx); // adjusted when a stop is coming,\r
151 if(lx<2147483) lx=(lx*RELEASE_MS)/10000L; // so at this time the adsr vol will \r
152 else lx=(lx/10000L)*RELEASE_MS; // run from (current volume) to 0%\r
153 if(!lx) lx=1;\r
154 }\r
155 s_chan[ch].ADSR.ReleaseTime=lx;\r
156\r
157 if(lval & 0x4000) // add/dec flag\r
158 s_chan[ch].ADSR.SustainModeDec=-1;\r
159 else s_chan[ch].ADSR.SustainModeDec=1;\r
6d866bb7 160#endif\r
ef79bbde
P		 161 }\r
162 break;\r
163 //------------------------------------------------// adsr volume... mmm have to investigate this\r
164 case 12:\r
165 break;\r
166 //------------------------------------------------//\r
167 case 14: // loop?\r
168 //WaitForSingleObject(s_chan[ch].hMutex,2000); // -> no multithread fuckups\r
b00afb77 169 s_chan[ch].pLoop=spuMemC+((unsigned long)((val<<3)&~0xf));\r
5238f6f8 170 //s_chan[ch].bIgnoreLoop=1;\r
ef79bbde
P		 171 //ReleaseMutex(s_chan[ch].hMutex); // -> oki, on with the thread\r
172 break;\r
173 //------------------------------------------------//\r
174 }\r
175 iSpuAsyncWait=0;\r
176 return;\r
177 }\r
178\r
179 switch(r)\r
180 {\r
181 //-------------------------------------------------//\r
182 case H_SPUaddr:\r
183 spuAddr = (unsigned long) val<<3;\r
184 break;\r
185 //-------------------------------------------------//\r
186 case H_SPUdata:\r
187 spuMem[spuAddr>>1] = val;\r
188 spuAddr+=2;\r
189 if(spuAddr>0x7ffff) spuAddr=0;\r
190 break;\r
191 //-------------------------------------------------//\r
192 case H_SPUctrl:\r
3fc2a4c2 193 if(!(spuCtrl & CTRL_IRQ))\r
194 spuStat&=~STAT_IRQ;\r
ef79bbde
P		 195 spuCtrl=val;\r
196 break;\r
197 //-------------------------------------------------//\r
198 case H_SPUstat:\r
199 spuStat=val & 0xf800;\r
200 break;\r
201 //-------------------------------------------------//\r
202 case H_SPUReverbAddr:\r
203 if(val==0xFFFF || val<=0x200)\r
204 {rvb.StartAddr=rvb.CurrAddr=0;}\r
205 else\r
206 {\r
207 const long iv=(unsigned long)val<<2;\r
208 if(rvb.StartAddr!=iv)\r
209 {\r
210 rvb.StartAddr=(unsigned long)val<<2;\r
211 rvb.CurrAddr=rvb.StartAddr;\r
212 }\r
213 }\r
1775933a 214 rvb.dirty = 1;\r
ef79bbde
P		 215 break;\r
216 //-------------------------------------------------//\r
217 case H_SPUirqAddr:\r
218 spuIrq = val;\r
3fc2a4c2 219 pSpuIrq=spuMemC+(((unsigned long) val<<3)&~0xf);\r
ef79bbde
P		 220 break;\r
221 //-------------------------------------------------//\r
222 case H_SPUrvolL:\r
223 rvb.VolLeft=val;\r
224 break;\r
225 //-------------------------------------------------//\r
226 case H_SPUrvolR:\r
227 rvb.VolRight=val;\r
228 break;\r
229 //-------------------------------------------------//\r
230\r
231/*\r
232 case H_ExtLeft:\r
233 //auxprintf("EL %d\n",val);\r
234 break;\r
235 //-------------------------------------------------//\r
236 case H_ExtRight:\r
237 //auxprintf("ER %d\n",val);\r
238 break;\r
239 //-------------------------------------------------//\r
240 case H_SPUmvolL:\r
241 //auxprintf("ML %d\n",val);\r
242 break;\r
243 //-------------------------------------------------//\r
244 case H_SPUmvolR:\r
245 //auxprintf("MR %d\n",val);\r
246 break;\r
247 //-------------------------------------------------//\r
248 case H_SPUMute1:\r
249 //auxprintf("M0 %04x\n",val);\r
250 break;\r
251 //-------------------------------------------------//\r
252 case H_SPUMute2:\r
253 //auxprintf("M1 %04x\n",val);\r
254 break;\r
255*/\r
256 //-------------------------------------------------//\r
257 case H_SPUon1:\r
258 SoundOn(0,16,val);\r
259 break;\r
260 //-------------------------------------------------//\r
261 case H_SPUon2:\r
262 SoundOn(16,24,val);\r
263 break;\r
264 //-------------------------------------------------//\r
265 case H_SPUoff1:\r
266 SoundOff(0,16,val);\r
267 break;\r
268 //-------------------------------------------------//\r
269 case H_SPUoff2:\r
270 SoundOff(16,24,val);\r
271 break;\r
272 //-------------------------------------------------//\r
273 case H_CDLeft:\r
274 iLeftXAVol=val & 0x7fff;\r
275 if(cddavCallback) cddavCallback(0,val);\r
276 break;\r
277 case H_CDRight:\r
278 iRightXAVol=val & 0x7fff;\r
279 if(cddavCallback) cddavCallback(1,val);\r
280 break;\r
281 //-------------------------------------------------//\r
282 case H_FMod1:\r
283 FModOn(0,16,val);\r
284 break;\r
285 //-------------------------------------------------//\r
286 case H_FMod2:\r
287 FModOn(16,24,val);\r
288 break;\r
289 //-------------------------------------------------//\r
290 case H_Noise1:\r
291 NoiseOn(0,16,val);\r
292 break;\r
293 //-------------------------------------------------//\r
294 case H_Noise2:\r
295 NoiseOn(16,24,val);\r
296 break;\r
297 //-------------------------------------------------//\r
298 case H_RVBon1:\r
299 ReverbOn(0,16,val);\r
300 break;\r
301 //-------------------------------------------------//\r
302 case H_RVBon2:\r
303 ReverbOn(16,24,val);\r
304 break;\r
305 //-------------------------------------------------//\r
1775933a 306 case H_Reverb+0 : rvb.FB_SRC_A=val*4; break;\r
307 case H_Reverb+2 : rvb.FB_SRC_B=val*4; break;\r
ef79bbde
P		 308 case H_Reverb+4 : rvb.IIR_ALPHA=(short)val; break;\r
309 case H_Reverb+6 : rvb.ACC_COEF_A=(short)val; break;\r
310 case H_Reverb+8 : rvb.ACC_COEF_B=(short)val; break;\r
311 case H_Reverb+10 : rvb.ACC_COEF_C=(short)val; break;\r
312 case H_Reverb+12 : rvb.ACC_COEF_D=(short)val; break;\r
313 case H_Reverb+14 : rvb.IIR_COEF=(short)val; break;\r
314 case H_Reverb+16 : rvb.FB_ALPHA=(short)val; break;\r
315 case H_Reverb+18 : rvb.FB_X=(short)val; break;\r
1775933a 316 case H_Reverb+20 : rvb.IIR_DEST_A0=val*4; break;\r
317 case H_Reverb+22 : rvb.IIR_DEST_A1=val*4; break;\r
318 case H_Reverb+24 : rvb.ACC_SRC_A0=val*4; break;\r
319 case H_Reverb+26 : rvb.ACC_SRC_A1=val*4; break;\r
320 case H_Reverb+28 : rvb.ACC_SRC_B0=val*4; break;\r
321 case H_Reverb+30 : rvb.ACC_SRC_B1=val*4; break;\r
322 case H_Reverb+32 : rvb.IIR_SRC_A0=val*4; break;\r
323 case H_Reverb+34 : rvb.IIR_SRC_A1=val*4; break;\r
324 case H_Reverb+36 : rvb.IIR_DEST_B0=val*4; break;\r
325 case H_Reverb+38 : rvb.IIR_DEST_B1=val*4; break;\r
326 case H_Reverb+40 : rvb.ACC_SRC_C0=val*4; break;\r
327 case H_Reverb+42 : rvb.ACC_SRC_C1=val*4; break;\r
328 case H_Reverb+44 : rvb.ACC_SRC_D0=val*4; break;\r
329 case H_Reverb+46 : rvb.ACC_SRC_D1=val*4; break;\r
330 case H_Reverb+48 : rvb.IIR_SRC_B1=val*4; break;\r
331 case H_Reverb+50 : rvb.IIR_SRC_B0=val*4; break;\r
332 case H_Reverb+52 : rvb.MIX_DEST_A0=val*4; break;\r
333 case H_Reverb+54 : rvb.MIX_DEST_A1=val*4; break;\r
334 case H_Reverb+56 : rvb.MIX_DEST_B0=val*4; break;\r
335 case H_Reverb+58 : rvb.MIX_DEST_B1=val*4; break;\r
ef79bbde
P		 336 case H_Reverb+60 : rvb.IN_COEF_L=(short)val; break;\r
337 case H_Reverb+62 : rvb.IN_COEF_R=(short)val; break;\r
338 }\r
339\r
1775933a 340 if ((r & ~0x3f) == H_Reverb)\r
341 rvb.dirty = 1; // recalculate on next update\r
342\r
ef79bbde
P		 343 iSpuAsyncWait=0;\r
344}\r
345\r
346////////////////////////////////////////////////////////////////////////\r
347// READ REGISTER: called by main emu\r
348////////////////////////////////////////////////////////////////////////\r
349\r
350unsigned short CALLBACK SPUreadRegister(unsigned long reg)\r
351{\r
352 const unsigned long r=reg&0xfff;\r
353 \r
354 iSpuAsyncWait=0;\r
355\r
356 if(r>=0x0c00 && r<0x0d80)\r
357 {\r
358 switch(r&0x0f)\r
359 {\r
360 case 12: // get adsr vol\r
361 {\r
362 const int ch=(r>>4)-0xc0;\r
6d866bb7 363 if(dwNewChannel&(1<<ch)) return 1; // we are started, but not processed? return 1\r
364 if((dwChannelOn&(1<<ch)) && // same here... we haven't decoded one sample yet, so no envelope yet. return 1 as well\r
365 !s_chan[ch].ADSRX.EnvelopeVol)\r
ef79bbde
P		 366 return 1;\r
367 return (unsigned short)(s_chan[ch].ADSRX.EnvelopeVol>>16);\r
368 }\r
369\r
370 case 14: // get loop address\r
371 {\r
372 const int ch=(r>>4)-0xc0;\r
ef79bbde
P		 373 return (unsigned short)((s_chan[ch].pLoop-spuMemC)>>3);\r
374 }\r
375 }\r
376 }\r
377\r
378 switch(r)\r
379 {\r
380 case H_SPUctrl:\r
381 return spuCtrl;\r
382\r
383 case H_SPUstat:\r
384 return spuStat;\r
385 \r
386 case H_SPUaddr:\r
387 return (unsigned short)(spuAddr>>3);\r
388\r
389 case H_SPUdata:\r
390 {\r
391 unsigned short s=spuMem[spuAddr>>1];\r
392 spuAddr+=2;\r
393 if(spuAddr>0x7ffff) spuAddr=0;\r
394 return s;\r
395 }\r
396\r
397 case H_SPUirqAddr:\r
398 return spuIrq;\r
399\r
400 //case H_SPUIsOn1:\r
401 // return IsSoundOn(0,16);\r
402\r
403 //case H_SPUIsOn2:\r
404 // return IsSoundOn(16,24);\r
405 \r
406 }\r
407\r
408 return regArea[(r-0xc00)>>1];\r
409}\r
410 \r
411////////////////////////////////////////////////////////////////////////\r
412// SOUND ON register write\r
413////////////////////////////////////////////////////////////////////////\r
414\r
415void SoundOn(int start,int end,unsigned short val) // SOUND ON PSX COMAND\r
416{\r
417 int ch;\r
418\r
419 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
420 {\r
421 if((val&1) && s_chan[ch].pStart) // mmm... start has to be set before key on !?!\r
422 {\r
423 s_chan[ch].bIgnoreLoop=0;\r
b00afb77 424\r
425 // do this here, not in StartSound\r
426 // - fixes fussy timing issues\r
427 s_chan[ch].bStop=0;\r
b00afb77 428 s_chan[ch].pCurr=s_chan[ch].pStart;\r
429\r
ef79bbde 430 dwNewChannel|=(1<<ch); // bitfield for faster testing\r
6d866bb7 431 dwChannelOn|=1<<ch;\r
ef79bbde
P		 432 }\r
433 }\r
434}\r
435\r
436////////////////////////////////////////////////////////////////////////\r
437// SOUND OFF register write\r
438////////////////////////////////////////////////////////////////////////\r
439\r
440void SoundOff(int start,int end,unsigned short val) // SOUND OFF PSX COMMAND\r
441{\r
442 int ch;\r
443 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
444 {\r
445 if(val&1) // && s_chan[i].bOn) mmm...\r
446 {\r
447 s_chan[ch].bStop=1;\r
b00afb77 448\r
449 // Jungle Book - Rhythm 'n Groove\r
450 // - turns off buzzing sound (loop hangs)\r
b00afb77 451 dwNewChannel &= ~(1<<ch);\r
ef79bbde
P		 452 } \r
453 }\r
454}\r
455\r
456////////////////////////////////////////////////////////////////////////\r
457// FMOD register write\r
458////////////////////////////////////////////////////////////////////////\r
459\r
460void FModOn(int start,int end,unsigned short val) // FMOD ON PSX COMMAND\r
461{\r
462 int ch;\r
463\r
464 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
465 {\r
466 if(val&1) // -> fmod on/off\r
467 {\r
468 if(ch>0) \r
469 {\r
470 s_chan[ch].bFMod=1; // --> sound channel\r
471 s_chan[ch-1].bFMod=2; // --> freq channel\r
472 }\r
473 }\r
474 else\r
475 {\r
476 s_chan[ch].bFMod=0; // --> turn off fmod\r
07a6dd2c 477 if(ch>0&&s_chan[ch-1].bFMod==2)\r
478 s_chan[ch-1].bFMod=0;\r
ef79bbde
P		 479 }\r
480 }\r
481}\r
482\r
483////////////////////////////////////////////////////////////////////////\r
484// NOISE register write\r
485////////////////////////////////////////////////////////////////////////\r
486\r
487void NoiseOn(int start,int end,unsigned short val) // NOISE ON PSX COMMAND\r
488{\r
489 int ch;\r
490\r
491 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
492 {\r
6d866bb7 493 s_chan[ch].bNoise=val&1; // -> noise on/off\r
ef79bbde
P		 494 }\r
495}\r
496\r
497////////////////////////////////////////////////////////////////////////\r
498// LEFT VOLUME register write\r
499////////////////////////////////////////////////////////////////////////\r
500\r
501// please note: sweep and phase invert are wrong... but I've never seen\r
502// them used\r
503\r
504void SetVolumeL(unsigned char ch,short vol) // LEFT VOLUME\r
505{\r
ef79bbde
P		 506 if(vol&0x8000) // sweep?\r
507 {\r
508 short sInc=1; // -> sweep up?\r
509 if(vol&0x2000) sInc=-1; // -> or down?\r
510 if(vol&0x1000) vol^=0xffff; // -> mmm... phase inverted? have to investigate this\r
511 vol=((vol&0x7f)+1)/2; // -> sweep: 0..127 -> 0..64\r
512 vol+=vol/(2*sInc); // -> HACK: we don't sweep right now, so we just raise/lower the volume by the half!\r
513 vol*=128;\r
514 }\r
515 else // no sweep:\r
516 {\r
517 if(vol&0x4000) // -> mmm... phase inverted? have to investigate this\r
518 //vol^=0xffff;\r
519 vol=0x3fff-(vol&0x3fff);\r
520 }\r
521\r
522 vol&=0x3fff;\r
523 s_chan[ch].iLeftVolume=vol; // store volume\r
524}\r
525\r
526////////////////////////////////////////////////////////////////////////\r
527// RIGHT VOLUME register write\r
528////////////////////////////////////////////////////////////////////////\r
529\r
530void SetVolumeR(unsigned char ch,short vol) // RIGHT VOLUME\r
531{\r
ef79bbde
P		 532 if(vol&0x8000) // comments... see above :)\r
533 {\r
534 short sInc=1;\r
535 if(vol&0x2000) sInc=-1;\r
536 if(vol&0x1000) vol^=0xffff;\r
537 vol=((vol&0x7f)+1)/2; \r
538 vol+=vol/(2*sInc);\r
539 vol*=128;\r
540 }\r
541 else \r
542 {\r
543 if(vol&0x4000) //vol=vol^=0xffff;\r
544 vol=0x3fff-(vol&0x3fff);\r
545 }\r
546\r
547 vol&=0x3fff;\r
548\r
549 s_chan[ch].iRightVolume=vol;\r
550}\r
551\r
552////////////////////////////////////////////////////////////////////////\r
553// PITCH register write\r
554////////////////////////////////////////////////////////////////////////\r
555\r
556void SetPitch(int ch,unsigned short val) // SET PITCH\r
557{\r
558 int NP;\r
559 if(val>0x3fff) NP=0x3fff; // get pitch val\r
560 else NP=val;\r
561\r
562 s_chan[ch].iRawPitch=NP;\r
563\r
564 NP=(44100L*NP)/4096L; // calc frequency\r
565 if(NP<1) NP=1; // some security\r
566 s_chan[ch].iActFreq=NP; // store frequency\r
567}\r
568\r
569////////////////////////////////////////////////////////////////////////\r
570// REVERB register write\r
571////////////////////////////////////////////////////////////////////////\r
572\r
573void ReverbOn(int start,int end,unsigned short val) // REVERB ON PSX COMMAND\r
574{\r
575 int ch;\r
576\r
577 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
578 {\r
6d866bb7 579 s_chan[ch].bReverb=val&1; // -> reverb on/off\r
ef79bbde
P		 580 }\r
581}\r
ARM optimized PCSX fork