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gpu_neon/psx_gpu: use external vram
[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
ef79bbde
P		 24\r
25/*\r
26// adsr time values (in ms) by James Higgs ... see the end of\r
27// the adsr.c source for details\r
28\r
29#define ATTACK_MS 514L\r
30#define DECAYHALF_MS 292L\r
31#define DECAY_MS 584L\r
32#define SUSTAIN_MS 450L\r
33#define RELEASE_MS 446L\r
34*/\r
35\r
36// we have a timebase of 1.020408f ms, not 1 ms... so adjust adsr defines\r
37#define ATTACK_MS 494L\r
38#define DECAYHALF_MS 286L\r
39#define DECAY_MS 572L\r
40#define SUSTAIN_MS 441L\r
41#define RELEASE_MS 437L\r
42\r
7e44d49d 43static void SoundOn(int start,int end,unsigned short val);\r
44static void SoundOff(int start,int end,unsigned short val);\r
45static void FModOn(int start,int end,unsigned short val);\r
46static void NoiseOn(int start,int end,unsigned short val);\r
47static void SetVolumeL(unsigned char ch,short vol);\r
48static void SetVolumeR(unsigned char ch,short vol);\r
49static void SetPitch(int ch,unsigned short val);\r
50static void ReverbOn(int start,int end,unsigned short val);\r
51\r
ef79bbde
P		 52////////////////////////////////////////////////////////////////////////\r
53// WRITE REGISTERS: called by main emu\r
54////////////////////////////////////////////////////////////////////////\r
55\r
56void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val)\r
57{\r
58 const unsigned long r=reg&0xfff;\r
59 regArea[(r-0xc00)>>1] = val;\r
60\r
61 if(r>=0x0c00 && r<0x0d80) // some channel info?\r
62 {\r
63 int ch=(r>>4)-0xc0; // calc channel\r
64 switch(r&0x0f)\r
65 {\r
66 //------------------------------------------------// r volume\r
67 case 0: \r
68 SetVolumeL((unsigned char)ch,val);\r
69 break;\r
70 //------------------------------------------------// l volume\r
71 case 2: \r
72 SetVolumeR((unsigned char)ch,val);\r
73 break;\r
74 //------------------------------------------------// pitch\r
75 case 4: \r
76 SetPitch(ch,val);\r
77 break;\r
78 //------------------------------------------------// start\r
79 case 6: \r
7e44d49d 80 // taken from regArea later\r
ef79bbde
P		 81 break;\r
82 //------------------------------------------------// level with pre-calcs\r
83 case 8:\r
84 {\r
6d866bb7 85 const unsigned long lval=val;\r
ef79bbde
P		 86 //---------------------------------------------//\r
87 s_chan[ch].ADSRX.AttackModeExp=(lval&0x8000)?1:0; \r
88 s_chan[ch].ADSRX.AttackRate=(lval>>8) & 0x007f;\r
89 s_chan[ch].ADSRX.DecayRate=(lval>>4) & 0x000f;\r
90 s_chan[ch].ADSRX.SustainLevel=lval & 0x000f;\r
91 //---------------------------------------------//\r
6d866bb7 92#if 0\r
ef79bbde
P		 93 if(!iDebugMode) break;\r
94 //---------------------------------------------// stuff below is only for debug mode\r
95\r
96 s_chan[ch].ADSR.AttackModeExp=(lval&0x8000)?1:0; //0x007f\r
97\r
98 lx=(((lval>>8) & 0x007f)>>2); // attack time to run from 0 to 100% volume\r
99 lx=min(31,lx); // no overflow on shift!\r
100 if(lx) \r
101 { \r
102 lx = (1<<lx);\r
103 if(lx<2147483) lx=(lx*ATTACK_MS)/10000L; // another overflow check\r
104 else lx=(lx/10000L)*ATTACK_MS;\r
105 if(!lx) lx=1;\r
106 }\r
107 s_chan[ch].ADSR.AttackTime=lx; \r
108\r
109 s_chan[ch].ADSR.SustainLevel= // our adsr vol runs from 0 to 1024, so scale the sustain level\r
110 (1024*((lval) & 0x000f))/15;\r
111\r
112 lx=(lval>>4) & 0x000f; // decay:\r
113 if(lx) // our const decay value is time it takes from 100% to 0% of volume\r
114 {\r
115 lx = ((1<<(lx))*DECAY_MS)/10000L;\r
116 if(!lx) lx=1;\r
117 }\r
118 s_chan[ch].ADSR.DecayTime = // so calc how long does it take to run from 100% to the wanted sus level\r
119 (lx*(1024-s_chan[ch].ADSR.SustainLevel))/1024;\r
6d866bb7 120#endif\r
ef79bbde
P		 121 }\r
122 break;\r
123 //------------------------------------------------// adsr times with pre-calcs\r
124 case 10:\r
125 {\r
6d866bb7 126 const unsigned long lval=val;\r
ef79bbde
P		 127\r
128 //----------------------------------------------//\r
129 s_chan[ch].ADSRX.SustainModeExp = (lval&0x8000)?1:0;\r
130 s_chan[ch].ADSRX.SustainIncrease= (lval&0x4000)?0:1;\r
131 s_chan[ch].ADSRX.SustainRate = (lval>>6) & 0x007f;\r
132 s_chan[ch].ADSRX.ReleaseModeExp = (lval&0x0020)?1:0;\r
133 s_chan[ch].ADSRX.ReleaseRate = lval & 0x001f;\r
134 //----------------------------------------------//\r
6d866bb7 135#if 0\r
ef79bbde
P		 136 if(!iDebugMode) break;\r
137 //----------------------------------------------// stuff below is only for debug mode\r
138\r
139 s_chan[ch].ADSR.SustainModeExp = (lval&0x8000)?1:0;\r
140 s_chan[ch].ADSR.ReleaseModeExp = (lval&0x0020)?1:0;\r
141 \r
142 lx=((((lval>>6) & 0x007f)>>2)); // sustain time... often very high\r
143 lx=min(31,lx); // values are used to hold the volume\r
144 if(lx) // until a sound stop occurs\r
145 { // the highest value we reach (due to \r
146 lx = (1<<lx); // overflow checking) is: \r
147 if(lx<2147483) lx=(lx*SUSTAIN_MS)/10000L; // 94704 seconds = 1578 minutes = 26 hours... \r
148 else lx=(lx/10000L)*SUSTAIN_MS; // should be enuff... if the stop doesn't \r
149 if(!lx) lx=1; // come in this time span, I don't care :)\r
150 }\r
151 s_chan[ch].ADSR.SustainTime = lx;\r
152\r
153 lx=(lval & 0x001f);\r
154 s_chan[ch].ADSR.ReleaseVal =lx;\r
155 if(lx) // release time from 100% to 0%\r
156 { // note: the release time will be\r
157 lx = (1<<lx); // adjusted when a stop is coming,\r
158 if(lx<2147483) lx=(lx*RELEASE_MS)/10000L; // so at this time the adsr vol will \r
159 else lx=(lx/10000L)*RELEASE_MS; // run from (current volume) to 0%\r
160 if(!lx) lx=1;\r
161 }\r
162 s_chan[ch].ADSR.ReleaseTime=lx;\r
163\r
164 if(lval & 0x4000) // add/dec flag\r
165 s_chan[ch].ADSR.SustainModeDec=-1;\r
166 else s_chan[ch].ADSR.SustainModeDec=1;\r
6d866bb7 167#endif\r
ef79bbde
P		 168 }\r
169 break;\r
170 //------------------------------------------------// adsr volume... mmm have to investigate this\r
171 case 12:\r
172 break;\r
173 //------------------------------------------------//\r
174 case 14: // loop?\r
7e44d49d 175 s_chan[ch].pLoop=spuMemC+((val&~1)<<3);\r
be1cb678 176 if(s_chan[ch].bJump)\r
177 // real machine would be most likely still doing the last block and use new value for the jump;\r
178 // but we decode ahead a bit and already did the jump part, so compensate for that now.\r
179 s_chan[ch].pCurr=s_chan[ch].pLoop;\r
ef79bbde
P		 180 break;\r
181 //------------------------------------------------//\r
182 }\r
183 iSpuAsyncWait=0;\r
184 return;\r
185 }\r
186\r
187 switch(r)\r
188 {\r
189 //-------------------------------------------------//\r
190 case H_SPUaddr:\r
191 spuAddr = (unsigned long) val<<3;\r
192 break;\r
193 //-------------------------------------------------//\r
194 case H_SPUdata:\r
195 spuMem[spuAddr>>1] = val;\r
196 spuAddr+=2;\r
197 if(spuAddr>0x7ffff) spuAddr=0;\r
198 break;\r
199 //-------------------------------------------------//\r
200 case H_SPUctrl:\r
3fc2a4c2 201 if(!(spuCtrl & CTRL_IRQ))\r
202 spuStat&=~STAT_IRQ;\r
ef79bbde
P		 203 spuCtrl=val;\r
204 break;\r
205 //-------------------------------------------------//\r
206 case H_SPUstat:\r
207 spuStat=val & 0xf800;\r
208 break;\r
209 //-------------------------------------------------//\r
210 case H_SPUReverbAddr:\r
211 if(val==0xFFFF || val<=0x200)\r
212 {rvb.StartAddr=rvb.CurrAddr=0;}\r
213 else\r
214 {\r
215 const long iv=(unsigned long)val<<2;\r
216 if(rvb.StartAddr!=iv)\r
217 {\r
218 rvb.StartAddr=(unsigned long)val<<2;\r
219 rvb.CurrAddr=rvb.StartAddr;\r
220 }\r
221 }\r
1775933a 222 rvb.dirty = 1;\r
ef79bbde
P		 223 break;\r
224 //-------------------------------------------------//\r
225 case H_SPUirqAddr:\r
226 spuIrq = val;\r
3fc2a4c2 227 pSpuIrq=spuMemC+(((unsigned long) val<<3)&~0xf);\r
ef79bbde
P		 228 break;\r
229 //-------------------------------------------------//\r
230 case H_SPUrvolL:\r
231 rvb.VolLeft=val;\r
232 break;\r
233 //-------------------------------------------------//\r
234 case H_SPUrvolR:\r
235 rvb.VolRight=val;\r
236 break;\r
237 //-------------------------------------------------//\r
238\r
239/*\r
240 case H_ExtLeft:\r
241 //auxprintf("EL %d\n",val);\r
242 break;\r
243 //-------------------------------------------------//\r
244 case H_ExtRight:\r
245 //auxprintf("ER %d\n",val);\r
246 break;\r
247 //-------------------------------------------------//\r
248 case H_SPUmvolL:\r
249 //auxprintf("ML %d\n",val);\r
250 break;\r
251 //-------------------------------------------------//\r
252 case H_SPUmvolR:\r
253 //auxprintf("MR %d\n",val);\r
254 break;\r
255 //-------------------------------------------------//\r
256 case H_SPUMute1:\r
257 //auxprintf("M0 %04x\n",val);\r
258 break;\r
259 //-------------------------------------------------//\r
260 case H_SPUMute2:\r
261 //auxprintf("M1 %04x\n",val);\r
262 break;\r
263*/\r
264 //-------------------------------------------------//\r
265 case H_SPUon1:\r
266 SoundOn(0,16,val);\r
267 break;\r
268 //-------------------------------------------------//\r
269 case H_SPUon2:\r
270 SoundOn(16,24,val);\r
271 break;\r
272 //-------------------------------------------------//\r
273 case H_SPUoff1:\r
274 SoundOff(0,16,val);\r
275 break;\r
276 //-------------------------------------------------//\r
277 case H_SPUoff2:\r
278 SoundOff(16,24,val);\r
279 break;\r
280 //-------------------------------------------------//\r
281 case H_CDLeft:\r
282 iLeftXAVol=val & 0x7fff;\r
283 if(cddavCallback) cddavCallback(0,val);\r
284 break;\r
285 case H_CDRight:\r
286 iRightXAVol=val & 0x7fff;\r
287 if(cddavCallback) cddavCallback(1,val);\r
288 break;\r
289 //-------------------------------------------------//\r
290 case H_FMod1:\r
291 FModOn(0,16,val);\r
292 break;\r
293 //-------------------------------------------------//\r
294 case H_FMod2:\r
295 FModOn(16,24,val);\r
296 break;\r
297 //-------------------------------------------------//\r
298 case H_Noise1:\r
299 NoiseOn(0,16,val);\r
300 break;\r
301 //-------------------------------------------------//\r
302 case H_Noise2:\r
303 NoiseOn(16,24,val);\r
304 break;\r
305 //-------------------------------------------------//\r
306 case H_RVBon1:\r
307 ReverbOn(0,16,val);\r
308 break;\r
309 //-------------------------------------------------//\r
310 case H_RVBon2:\r
311 ReverbOn(16,24,val);\r
312 break;\r
313 //-------------------------------------------------//\r
1775933a 314 case H_Reverb+0 : rvb.FB_SRC_A=val*4; break;\r
315 case H_Reverb+2 : rvb.FB_SRC_B=val*4; break;\r
ef79bbde
P		 316 case H_Reverb+4 : rvb.IIR_ALPHA=(short)val; break;\r
317 case H_Reverb+6 : rvb.ACC_COEF_A=(short)val; break;\r
318 case H_Reverb+8 : rvb.ACC_COEF_B=(short)val; break;\r
319 case H_Reverb+10 : rvb.ACC_COEF_C=(short)val; break;\r
320 case H_Reverb+12 : rvb.ACC_COEF_D=(short)val; break;\r
321 case H_Reverb+14 : rvb.IIR_COEF=(short)val; break;\r
322 case H_Reverb+16 : rvb.FB_ALPHA=(short)val; break;\r
323 case H_Reverb+18 : rvb.FB_X=(short)val; break;\r
1775933a 324 case H_Reverb+20 : rvb.IIR_DEST_A0=val*4; break;\r
325 case H_Reverb+22 : rvb.IIR_DEST_A1=val*4; break;\r
326 case H_Reverb+24 : rvb.ACC_SRC_A0=val*4; break;\r
327 case H_Reverb+26 : rvb.ACC_SRC_A1=val*4; break;\r
328 case H_Reverb+28 : rvb.ACC_SRC_B0=val*4; break;\r
329 case H_Reverb+30 : rvb.ACC_SRC_B1=val*4; break;\r
330 case H_Reverb+32 : rvb.IIR_SRC_A0=val*4; break;\r
331 case H_Reverb+34 : rvb.IIR_SRC_A1=val*4; break;\r
332 case H_Reverb+36 : rvb.IIR_DEST_B0=val*4; break;\r
333 case H_Reverb+38 : rvb.IIR_DEST_B1=val*4; break;\r
334 case H_Reverb+40 : rvb.ACC_SRC_C0=val*4; break;\r
335 case H_Reverb+42 : rvb.ACC_SRC_C1=val*4; break;\r
336 case H_Reverb+44 : rvb.ACC_SRC_D0=val*4; break;\r
337 case H_Reverb+46 : rvb.ACC_SRC_D1=val*4; break;\r
338 case H_Reverb+48 : rvb.IIR_SRC_B1=val*4; break;\r
339 case H_Reverb+50 : rvb.IIR_SRC_B0=val*4; break;\r
340 case H_Reverb+52 : rvb.MIX_DEST_A0=val*4; break;\r
341 case H_Reverb+54 : rvb.MIX_DEST_A1=val*4; break;\r
342 case H_Reverb+56 : rvb.MIX_DEST_B0=val*4; break;\r
343 case H_Reverb+58 : rvb.MIX_DEST_B1=val*4; break;\r
ef79bbde
P		 344 case H_Reverb+60 : rvb.IN_COEF_L=(short)val; break;\r
345 case H_Reverb+62 : rvb.IN_COEF_R=(short)val; break;\r
346 }\r
347\r
1775933a 348 if ((r & ~0x3f) == H_Reverb)\r
349 rvb.dirty = 1; // recalculate on next update\r
350\r
ef79bbde
P		 351 iSpuAsyncWait=0;\r
352}\r
353\r
354////////////////////////////////////////////////////////////////////////\r
355// READ REGISTER: called by main emu\r
356////////////////////////////////////////////////////////////////////////\r
357\r
358unsigned short CALLBACK SPUreadRegister(unsigned long reg)\r
359{\r
360 const unsigned long r=reg&0xfff;\r
361 \r
362 iSpuAsyncWait=0;\r
363\r
364 if(r>=0x0c00 && r<0x0d80)\r
365 {\r
366 switch(r&0x0f)\r
367 {\r
368 case 12: // get adsr vol\r
369 {\r
370 const int ch=(r>>4)-0xc0;\r
6d866bb7 371 if(dwNewChannel&(1<<ch)) return 1; // we are started, but not processed? return 1\r
372 if((dwChannelOn&(1<<ch)) && // same here... we haven't decoded one sample yet, so no envelope yet. return 1 as well\r
373 !s_chan[ch].ADSRX.EnvelopeVol)\r
ef79bbde
P		 374 return 1;\r
375 return (unsigned short)(s_chan[ch].ADSRX.EnvelopeVol>>16);\r
376 }\r
377\r
378 case 14: // get loop address\r
379 {\r
380 const int ch=(r>>4)-0xc0;\r
ef79bbde
P		 381 return (unsigned short)((s_chan[ch].pLoop-spuMemC)>>3);\r
382 }\r
383 }\r
384 }\r
385\r
386 switch(r)\r
387 {\r
388 case H_SPUctrl:\r
389 return spuCtrl;\r
390\r
391 case H_SPUstat:\r
392 return spuStat;\r
393 \r
394 case H_SPUaddr:\r
395 return (unsigned short)(spuAddr>>3);\r
396\r
397 case H_SPUdata:\r
398 {\r
399 unsigned short s=spuMem[spuAddr>>1];\r
400 spuAddr+=2;\r
401 if(spuAddr>0x7ffff) spuAddr=0;\r
402 return s;\r
403 }\r
404\r
405 case H_SPUirqAddr:\r
406 return spuIrq;\r
407\r
408 //case H_SPUIsOn1:\r
409 // return IsSoundOn(0,16);\r
410\r
411 //case H_SPUIsOn2:\r
412 // return IsSoundOn(16,24);\r
413 \r
414 }\r
415\r
416 return regArea[(r-0xc00)>>1];\r
417}\r
418 \r
419////////////////////////////////////////////////////////////////////////\r
420// SOUND ON register write\r
421////////////////////////////////////////////////////////////////////////\r
422\r
7e44d49d 423static void SoundOn(int start,int end,unsigned short val)\r
ef79bbde
P		 424{\r
425 int ch;\r
426\r
427 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
428 {\r
77d6fd63 429 if((val&1) && regAreaGet(ch,6)) // mmm... start has to be set before key on !?!\r
ef79bbde 430 {\r
b00afb77 431 // do this here, not in StartSound\r
432 // - fixes fussy timing issues\r
433 s_chan[ch].bStop=0;\r
77d6fd63 434 s_chan[ch].pCurr=spuMemC+((regAreaGet(ch,6)&~1)<<3); // must be block aligned\r
435 s_chan[ch].pLoop=spuMemC+((regAreaGet(ch,14)&~1)<<3);\r
be1cb678 436 s_chan[ch].bJump=0;\r
b00afb77 437\r
ef79bbde 438 dwNewChannel|=(1<<ch); // bitfield for faster testing\r
6d866bb7 439 dwChannelOn|=1<<ch;\r
174c454a 440 dwChannelDead&=~(1<<ch);\r
ef79bbde
P		 441 }\r
442 }\r
443}\r
444\r
445////////////////////////////////////////////////////////////////////////\r
446// SOUND OFF register write\r
447////////////////////////////////////////////////////////////////////////\r
448\r
7e44d49d 449static void SoundOff(int start,int end,unsigned short val)\r
ef79bbde
P		 450{\r
451 int ch;\r
452 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
453 {\r
454 if(val&1) // && s_chan[i].bOn) mmm...\r
455 {\r
456 s_chan[ch].bStop=1;\r
b00afb77 457\r
458 // Jungle Book - Rhythm 'n Groove\r
459 // - turns off buzzing sound (loop hangs)\r
b00afb77 460 dwNewChannel &= ~(1<<ch);\r
ef79bbde
P		 461 } \r
462 }\r
463}\r
464\r
465////////////////////////////////////////////////////////////////////////\r
466// FMOD register write\r
467////////////////////////////////////////////////////////////////////////\r
468\r
7e44d49d 469static void FModOn(int start,int end,unsigned short val)\r
ef79bbde
P		 470{\r
471 int ch;\r
472\r
473 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
474 {\r
475 if(val&1) // -> fmod on/off\r
476 {\r
477 if(ch>0) \r
478 {\r
479 s_chan[ch].bFMod=1; // --> sound channel\r
480 s_chan[ch-1].bFMod=2; // --> freq channel\r
481 }\r
482 }\r
483 else\r
484 {\r
485 s_chan[ch].bFMod=0; // --> turn off fmod\r
07a6dd2c 486 if(ch>0&&s_chan[ch-1].bFMod==2)\r
487 s_chan[ch-1].bFMod=0;\r
ef79bbde
P		 488 }\r
489 }\r
490}\r
491\r
492////////////////////////////////////////////////////////////////////////\r
493// NOISE register write\r
494////////////////////////////////////////////////////////////////////////\r
495\r
7e44d49d 496static void NoiseOn(int start,int end,unsigned short val)\r
ef79bbde
P		 497{\r
498 int ch;\r
499\r
500 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
501 {\r
6d866bb7 502 s_chan[ch].bNoise=val&1; // -> noise on/off\r
ef79bbde
P		 503 }\r
504}\r
505\r
506////////////////////////////////////////////////////////////////////////\r
507// LEFT VOLUME register write\r
508////////////////////////////////////////////////////////////////////////\r
509\r
510// please note: sweep and phase invert are wrong... but I've never seen\r
511// them used\r
512\r
7e44d49d 513static void SetVolumeL(unsigned char ch,short vol) // LEFT VOLUME\r
ef79bbde 514{\r
ef79bbde
P		 515 if(vol&0x8000) // sweep?\r
516 {\r
517 short sInc=1; // -> sweep up?\r
518 if(vol&0x2000) sInc=-1; // -> or down?\r
519 if(vol&0x1000) vol^=0xffff; // -> mmm... phase inverted? have to investigate this\r
520 vol=((vol&0x7f)+1)/2; // -> sweep: 0..127 -> 0..64\r
521 vol+=vol/(2*sInc); // -> HACK: we don't sweep right now, so we just raise/lower the volume by the half!\r
522 vol*=128;\r
523 }\r
524 else // no sweep:\r
525 {\r
526 if(vol&0x4000) // -> mmm... phase inverted? have to investigate this\r
527 //vol^=0xffff;\r
528 vol=0x3fff-(vol&0x3fff);\r
529 }\r
530\r
531 vol&=0x3fff;\r
532 s_chan[ch].iLeftVolume=vol; // store volume\r
533}\r
534\r
535////////////////////////////////////////////////////////////////////////\r
536// RIGHT VOLUME register write\r
537////////////////////////////////////////////////////////////////////////\r
538\r
7e44d49d 539static void SetVolumeR(unsigned char ch,short vol) // RIGHT VOLUME\r
ef79bbde 540{\r
ef79bbde
P		 541 if(vol&0x8000) // comments... see above :)\r
542 {\r
543 short sInc=1;\r
544 if(vol&0x2000) sInc=-1;\r
545 if(vol&0x1000) vol^=0xffff;\r
546 vol=((vol&0x7f)+1)/2; \r
547 vol+=vol/(2*sInc);\r
548 vol*=128;\r
549 }\r
550 else \r
551 {\r
552 if(vol&0x4000) //vol=vol^=0xffff;\r
553 vol=0x3fff-(vol&0x3fff);\r
554 }\r
555\r
556 vol&=0x3fff;\r
557\r
558 s_chan[ch].iRightVolume=vol;\r
559}\r
560\r
561////////////////////////////////////////////////////////////////////////\r
562// PITCH register write\r
563////////////////////////////////////////////////////////////////////////\r
564\r
7e44d49d 565static void SetPitch(int ch,unsigned short val) // SET PITCH\r
ef79bbde
P		 566{\r
567 int NP;\r
568 if(val>0x3fff) NP=0x3fff; // get pitch val\r
569 else NP=val;\r
570\r
571 s_chan[ch].iRawPitch=NP;\r
7e44d49d 572 s_chan[ch].sinc=(NP<<4)|8;\r
573 if(iUseInterpolation==1) s_chan[ch].SB[32]=1; // -> freq change in simple interpolation mode: set flag\r
ef79bbde
P		 574}\r
575\r
576////////////////////////////////////////////////////////////////////////\r
577// REVERB register write\r
578////////////////////////////////////////////////////////////////////////\r
579\r
7e44d49d 580static void ReverbOn(int start,int end,unsigned short val)\r
ef79bbde
P		 581{\r
582 int ch;\r
583\r
584 for(ch=start;ch<end;ch++,val>>=1) // loop channels\r
585 {\r
6d866bb7 586 s_chan[ch].bReverb=val&1; // -> reverb on/off\r
ef79bbde
P		 587 }\r
588}\r
ARM optimized PCSX fork