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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 | |
3154bfab | 24 | #include "spu_config.h"\r |
b71a957f | 25 | #include "spu.h"\r |
ef79bbde | 26 | \r |
7e44d49d | 27 | static void SoundOn(int start,int end,unsigned short val);\r |
28 | static void SoundOff(int start,int end,unsigned short val);\r | |
29 | static void FModOn(int start,int end,unsigned short val);\r | |
30 | static void NoiseOn(int start,int end,unsigned short val);\r | |
31 | static void SetVolumeL(unsigned char ch,short vol);\r | |
32 | static void SetVolumeR(unsigned char ch,short vol);\r | |
33 | static void SetPitch(int ch,unsigned short val);\r | |
34 | static void ReverbOn(int start,int end,unsigned short val);\r | |
35 | \r | |
ef79bbde P |
36 | ////////////////////////////////////////////////////////////////////////\r |
37 | // WRITE REGISTERS: called by main emu\r | |
38 | ////////////////////////////////////////////////////////////////////////\r | |
39 | \r | |
650adfd2 | 40 | static const uint32_t ignore_dupe[8] = {\r |
41 | // ch 0-15 c40 c80 cc0\r | |
42 | 0x7f7f7f7f, 0x7f7f7f7f, 0x7f7f7f7f, 0x7f7f7f7f,\r | |
43 | // ch 16-24 d40 control reverb\r | |
44 | 0x7f7f7f7f, 0x7f7f7f7f, 0xff05ff0f, 0xffffffff\r | |
45 | };\r | |
46 | \r | |
47 | void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val,\r | |
48 | unsigned int cycles)\r | |
ef79bbde | 49 | {\r |
650adfd2 | 50 | int r = reg & 0xfff;\r |
51 | int rofs = (r - 0xc00) >> 1;\r | |
3154bfab | 52 | int changed = spu.regArea[rofs] != val;\r |
53 | spu.regArea[rofs] = val;\r | |
650adfd2 | 54 | \r |
55 | if (!changed && (ignore_dupe[rofs >> 5] & (1 << (rofs & 0x1f))))\r | |
56 | return;\r | |
57 | // zero keyon/keyoff?\r | |
58 | if (val == 0 && (r & 0xff8) == 0xd88)\r | |
59 | return;\r | |
60 | \r | |
63a4f6b6 | 61 | do_samples_if_needed(cycles, 0);\r |
ef79bbde P |
62 | \r |
63 | if(r>=0x0c00 && r<0x0d80) // some channel info?\r | |
64 | {\r | |
65 | int ch=(r>>4)-0xc0; // calc channel\r | |
66 | switch(r&0x0f)\r | |
67 | {\r | |
68 | //------------------------------------------------// r volume\r | |
69 | case 0: \r | |
70 | SetVolumeL((unsigned char)ch,val);\r | |
71 | break;\r | |
72 | //------------------------------------------------// l volume\r | |
73 | case 2: \r | |
74 | SetVolumeR((unsigned char)ch,val);\r | |
75 | break;\r | |
76 | //------------------------------------------------// pitch\r | |
77 | case 4: \r | |
78 | SetPitch(ch,val);\r | |
650adfd2 | 79 | goto upd_irq;\r |
ef79bbde P |
80 | //------------------------------------------------// start\r |
81 | case 6: \r | |
7e44d49d | 82 | // taken from regArea later\r |
ef79bbde P |
83 | break;\r |
84 | //------------------------------------------------// level with pre-calcs\r | |
85 | case 8:\r | |
86 | {\r | |
6d866bb7 | 87 | const unsigned long lval=val;\r |
ef79bbde | 88 | //---------------------------------------------//\r |
5514a050 | 89 | spu.s_chan[ch].ADSRX.AttackModeExp=(lval&0x8000)?1:0;\r |
90 | spu.s_chan[ch].ADSRX.AttackRate=(lval>>8) & 0x007f;\r | |
91 | spu.s_chan[ch].ADSRX.DecayRate=(lval>>4) & 0x000f;\r | |
92 | spu.s_chan[ch].ADSRX.SustainLevel=lval & 0x000f;\r | |
ef79bbde | 93 | //---------------------------------------------//\r |
ef79bbde P |
94 | }\r |
95 | break;\r | |
96 | //------------------------------------------------// adsr times with pre-calcs\r | |
97 | case 10:\r | |
98 | {\r | |
6d866bb7 | 99 | const unsigned long lval=val;\r |
ef79bbde P |
100 | \r |
101 | //----------------------------------------------//\r | |
5514a050 | 102 | spu.s_chan[ch].ADSRX.SustainModeExp = (lval&0x8000)?1:0;\r |
103 | spu.s_chan[ch].ADSRX.SustainIncrease= (lval&0x4000)?0:1;\r | |
104 | spu.s_chan[ch].ADSRX.SustainRate = (lval>>6) & 0x007f;\r | |
105 | spu.s_chan[ch].ADSRX.ReleaseModeExp = (lval&0x0020)?1:0;\r | |
106 | spu.s_chan[ch].ADSRX.ReleaseRate = lval & 0x001f;\r | |
ef79bbde | 107 | //----------------------------------------------//\r |
ef79bbde P |
108 | }\r |
109 | break;\r | |
110 | //------------------------------------------------// adsr volume... mmm have to investigate this\r | |
111 | case 12:\r | |
112 | break;\r | |
113 | //------------------------------------------------//\r | |
114 | case 14: // loop?\r | |
5514a050 | 115 | spu.s_chan[ch].pLoop=spu.spuMemC+((val&~1)<<3);\r |
9601ca6d | 116 | spu.s_chan[ch].bIgnoreLoop = 1;\r |
650adfd2 | 117 | goto upd_irq;\r |
ef79bbde P |
118 | //------------------------------------------------//\r |
119 | }\r | |
ef79bbde P |
120 | return;\r |
121 | }\r | |
122 | \r | |
123 | switch(r)\r | |
124 | {\r | |
125 | //-------------------------------------------------//\r | |
126 | case H_SPUaddr:\r | |
3154bfab | 127 | spu.spuAddr = (unsigned long) val<<3;\r |
ef79bbde P |
128 | break;\r |
129 | //-------------------------------------------------//\r | |
130 | case H_SPUdata:\r | |
b71a957f | 131 | *(unsigned short *)(spu.spuMemC + spu.spuAddr) = HTOLE16(val);\r |
5514a050 | 132 | spu.spuAddr += 2;\r |
133 | spu.spuAddr &= 0x7fffe;\r | |
ef79bbde P |
134 | break;\r |
135 | //-------------------------------------------------//\r | |
136 | case H_SPUctrl:\r | |
3154bfab | 137 | if (!(spu.spuCtrl & CTRL_IRQ)) {\r |
138 | spu.spuStat&=~STAT_IRQ;\r | |
650adfd2 | 139 | if (val & CTRL_IRQ)\r |
140 | schedule_next_irq();\r | |
141 | }\r | |
3154bfab | 142 | spu.spuCtrl=val;\r |
ef79bbde P |
143 | break;\r |
144 | //-------------------------------------------------//\r | |
145 | case H_SPUstat:\r | |
3154bfab | 146 | spu.spuStat=val&0xf800;\r |
ef79bbde P |
147 | break;\r |
148 | //-------------------------------------------------//\r | |
149 | case H_SPUReverbAddr:\r | |
650adfd2 | 150 | goto rvbd;\r |
ef79bbde P |
151 | //-------------------------------------------------//\r |
152 | case H_SPUirqAddr:\r | |
54604e03 | 153 | //if (val & 1)\r |
154 | // log_unhandled("w irq with lsb: %08lx %04x\n", reg, val);\r | |
3154bfab | 155 | spu.pSpuIrq=spu.spuMemC+(((unsigned long) val<<3)&~0xf);\r |
650adfd2 | 156 | goto upd_irq;\r |
ef79bbde P |
157 | //-------------------------------------------------//\r |
158 | case H_SPUrvolL:\r | |
05c7cec7 | 159 | spu.rvb->VolLeft=val;\r |
ef79bbde P |
160 | break;\r |
161 | //-------------------------------------------------//\r | |
162 | case H_SPUrvolR:\r | |
05c7cec7 | 163 | spu.rvb->VolRight=val;\r |
ef79bbde P |
164 | break;\r |
165 | //-------------------------------------------------//\r | |
166 | \r | |
7df2c03c | 167 | case H_SPUmvolL:\r |
168 | case H_SPUmvolR:\r | |
169 | if (val & 0x8000)\r | |
170 | log_unhandled("w master sweep: %08lx %04x\n", reg, val);\r | |
171 | break;\r | |
172 | \r | |
173 | case 0x0dac:\r | |
174 | if (val != 4)\r | |
175 | log_unhandled("1f801dac %04x\n", val);\r | |
176 | break;\r | |
177 | \r | |
ef79bbde P |
178 | /*\r |
179 | case H_ExtLeft:\r | |
180 | //auxprintf("EL %d\n",val);\r | |
181 | break;\r | |
182 | //-------------------------------------------------//\r | |
183 | case H_ExtRight:\r | |
184 | //auxprintf("ER %d\n",val);\r | |
185 | break;\r | |
186 | //-------------------------------------------------//\r | |
187 | case H_SPUmvolL:\r | |
188 | //auxprintf("ML %d\n",val);\r | |
189 | break;\r | |
190 | //-------------------------------------------------//\r | |
191 | case H_SPUmvolR:\r | |
192 | //auxprintf("MR %d\n",val);\r | |
193 | break;\r | |
194 | //-------------------------------------------------//\r | |
195 | case H_SPUMute1:\r | |
196 | //auxprintf("M0 %04x\n",val);\r | |
197 | break;\r | |
198 | //-------------------------------------------------//\r | |
199 | case H_SPUMute2:\r | |
200 | //auxprintf("M1 %04x\n",val);\r | |
201 | break;\r | |
202 | */\r | |
203 | //-------------------------------------------------//\r | |
204 | case H_SPUon1:\r | |
205 | SoundOn(0,16,val);\r | |
206 | break;\r | |
207 | //-------------------------------------------------//\r | |
208 | case H_SPUon2:\r | |
209 | SoundOn(16,24,val);\r | |
210 | break;\r | |
211 | //-------------------------------------------------//\r | |
212 | case H_SPUoff1:\r | |
213 | SoundOff(0,16,val);\r | |
214 | break;\r | |
215 | //-------------------------------------------------//\r | |
216 | case H_SPUoff2:\r | |
217 | SoundOff(16,24,val);\r | |
218 | break;\r | |
219 | //-------------------------------------------------//\r | |
220 | case H_CDLeft:\r | |
7d6997de | 221 | spu.iLeftXAVol=(int16_t)val;\r |
222 | if(spu.cddavCallback) spu.cddavCallback(0,(int16_t)val);\r | |
ef79bbde P |
223 | break;\r |
224 | case H_CDRight:\r | |
7d6997de | 225 | spu.iRightXAVol=(int16_t)val;\r |
226 | if(spu.cddavCallback) spu.cddavCallback(1,(int16_t)val);\r | |
ef79bbde P |
227 | break;\r |
228 | //-------------------------------------------------//\r | |
229 | case H_FMod1:\r | |
230 | FModOn(0,16,val);\r | |
231 | break;\r | |
232 | //-------------------------------------------------//\r | |
233 | case H_FMod2:\r | |
234 | FModOn(16,24,val);\r | |
235 | break;\r | |
236 | //-------------------------------------------------//\r | |
237 | case H_Noise1:\r | |
238 | NoiseOn(0,16,val);\r | |
239 | break;\r | |
240 | //-------------------------------------------------//\r | |
241 | case H_Noise2:\r | |
242 | NoiseOn(16,24,val);\r | |
243 | break;\r | |
244 | //-------------------------------------------------//\r | |
245 | case H_RVBon1:\r | |
246 | ReverbOn(0,16,val);\r | |
247 | break;\r | |
248 | //-------------------------------------------------//\r | |
249 | case H_RVBon2:\r | |
250 | ReverbOn(16,24,val);\r | |
251 | break;\r | |
252 | //-------------------------------------------------//\r | |
7b2c4897 | 253 | case H_Reverb+0 : goto rvbd;\r |
254 | case H_Reverb+2 : goto rvbd;\r | |
255 | case H_Reverb+4 : spu.rvb->IIR_ALPHA=(short)val; break;\r | |
256 | case H_Reverb+6 : spu.rvb->ACC_COEF_A=(short)val; break;\r | |
257 | case H_Reverb+8 : spu.rvb->ACC_COEF_B=(short)val; break;\r | |
258 | case H_Reverb+10 : spu.rvb->ACC_COEF_C=(short)val; break;\r | |
259 | case H_Reverb+12 : spu.rvb->ACC_COEF_D=(short)val; break;\r | |
260 | case H_Reverb+14 : spu.rvb->IIR_COEF=(short)val; break;\r | |
261 | case H_Reverb+16 : spu.rvb->FB_ALPHA=(short)val; break;\r | |
262 | case H_Reverb+18 : spu.rvb->FB_X=(short)val; break;\r | |
263 | case H_Reverb+20 : goto rvbd;\r | |
264 | case H_Reverb+22 : goto rvbd;\r | |
265 | case H_Reverb+24 : goto rvbd;\r | |
266 | case H_Reverb+26 : goto rvbd;\r | |
267 | case H_Reverb+28 : goto rvbd;\r | |
268 | case H_Reverb+30 : goto rvbd;\r | |
269 | case H_Reverb+32 : goto rvbd;\r | |
270 | case H_Reverb+34 : goto rvbd;\r | |
271 | case H_Reverb+36 : goto rvbd;\r | |
272 | case H_Reverb+38 : goto rvbd;\r | |
273 | case H_Reverb+40 : goto rvbd;\r | |
274 | case H_Reverb+42 : goto rvbd;\r | |
275 | case H_Reverb+44 : goto rvbd;\r | |
276 | case H_Reverb+46 : goto rvbd;\r | |
277 | case H_Reverb+48 : goto rvbd;\r | |
278 | case H_Reverb+50 : goto rvbd;\r | |
279 | case H_Reverb+52 : goto rvbd;\r | |
280 | case H_Reverb+54 : goto rvbd;\r | |
281 | case H_Reverb+56 : goto rvbd;\r | |
282 | case H_Reverb+58 : goto rvbd;\r | |
283 | case H_Reverb+60 : spu.rvb->IN_COEF_L=(short)val; break;\r | |
284 | case H_Reverb+62 : spu.rvb->IN_COEF_R=(short)val; break;\r | |
ef79bbde | 285 | }\r |
650adfd2 | 286 | return;\r |
287 | \r | |
288 | upd_irq:\r | |
3154bfab | 289 | if (spu.spuCtrl & CTRL_IRQ)\r |
650adfd2 | 290 | schedule_next_irq();\r |
291 | return;\r | |
ef79bbde | 292 | \r |
650adfd2 | 293 | rvbd:\r |
05c7cec7 | 294 | spu.rvb->dirty = 1; // recalculate on next update\r |
ef79bbde P |
295 | }\r |
296 | \r | |
297 | ////////////////////////////////////////////////////////////////////////\r | |
298 | // READ REGISTER: called by main emu\r | |
299 | ////////////////////////////////////////////////////////////////////////\r | |
300 | \r | |
301 | unsigned short CALLBACK SPUreadRegister(unsigned long reg)\r | |
302 | {\r | |
303 | const unsigned long r=reg&0xfff;\r | |
304 | \r | |
ef79bbde P |
305 | if(r>=0x0c00 && r<0x0d80)\r |
306 | {\r | |
307 | switch(r&0x0f)\r | |
308 | {\r | |
309 | case 12: // get adsr vol\r | |
310 | {\r | |
311 | const int ch=(r>>4)-0xc0;\r | |
3154bfab | 312 | if(spu.dwNewChannel&(1<<ch)) return 1; // we are started, but not processed? return 1\r |
2daa7c1d | 313 | if((spu.dwChannelsAudible&(1<<ch)) && // same here... we haven't decoded one sample yet, so no envelope yet. return 1 as well\r |
5514a050 | 314 | !spu.s_chan[ch].ADSRX.EnvelopeVol)\r |
ef79bbde | 315 | return 1;\r |
5514a050 | 316 | return (unsigned short)(spu.s_chan[ch].ADSRX.EnvelopeVol>>16);\r |
ef79bbde P |
317 | }\r |
318 | \r | |
319 | case 14: // get loop address\r | |
320 | {\r | |
321 | const int ch=(r>>4)-0xc0;\r | |
5514a050 | 322 | return (unsigned short)((spu.s_chan[ch].pLoop-spu.spuMemC)>>3);\r |
ef79bbde P |
323 | }\r |
324 | }\r | |
325 | }\r | |
326 | \r | |
327 | switch(r)\r | |
328 | {\r | |
329 | case H_SPUctrl:\r | |
3154bfab | 330 | return spu.spuCtrl;\r |
ef79bbde P |
331 | \r |
332 | case H_SPUstat:\r | |
acc08532 | 333 | return (spu.spuStat & ~0x3F) | (spu.spuCtrl & 0x3F);\r |
ef79bbde P |
334 | \r |
335 | case H_SPUaddr:\r | |
3154bfab | 336 | return (unsigned short)(spu.spuAddr>>3);\r |
ef79bbde P |
337 | \r |
338 | case H_SPUdata:\r | |
339 | {\r | |
b71a957f | 340 | unsigned short s = LE16TOH(*(unsigned short *)(spu.spuMemC + spu.spuAddr));\r |
5514a050 | 341 | spu.spuAddr += 2;\r |
342 | spu.spuAddr &= 0x7fffe;\r | |
ef79bbde P |
343 | return s;\r |
344 | }\r | |
345 | \r | |
ef79bbde P |
346 | //case H_SPUIsOn1:\r |
347 | // return IsSoundOn(0,16);\r | |
348 | \r | |
349 | //case H_SPUIsOn2:\r | |
350 | // return IsSoundOn(16,24);\r | |
351 | \r | |
7df2c03c | 352 | case H_SPUMute1:\r |
353 | case H_SPUMute2:\r | |
354 | log_unhandled("r isOn: %08lx\n", reg);\r | |
355 | break;\r | |
ef79bbde P |
356 | }\r |
357 | \r | |
3154bfab | 358 | return spu.regArea[(r-0xc00)>>1];\r |
ef79bbde P |
359 | }\r |
360 | \r | |
361 | ////////////////////////////////////////////////////////////////////////\r | |
362 | // SOUND ON register write\r | |
363 | ////////////////////////////////////////////////////////////////////////\r | |
364 | \r | |
7e44d49d | 365 | static void SoundOn(int start,int end,unsigned short val)\r |
ef79bbde P |
366 | {\r |
367 | int ch;\r | |
368 | \r | |
369 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
370 | {\r | |
a0d4a8f5 | 371 | if((val&1) && regAreaGetCh(ch, 6)) // mmm... start has to be set before key on !?!\r |
ef79bbde | 372 | {\r |
9601ca6d | 373 | spu.s_chan[ch].bIgnoreLoop = 0;\r |
3154bfab | 374 | spu.dwNewChannel|=(1<<ch);\r |
ef79bbde P |
375 | }\r |
376 | }\r | |
377 | }\r | |
378 | \r | |
379 | ////////////////////////////////////////////////////////////////////////\r | |
380 | // SOUND OFF register write\r | |
381 | ////////////////////////////////////////////////////////////////////////\r | |
382 | \r | |
7e44d49d | 383 | static void SoundOff(int start,int end,unsigned short val)\r |
ef79bbde P |
384 | {\r |
385 | int ch;\r | |
386 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
387 | {\r | |
9ad8abfa | 388 | if(val&1)\r |
ef79bbde | 389 | {\r |
5514a050 | 390 | spu.s_chan[ch].ADSRX.State = ADSR_RELEASE;\r |
b00afb77 | 391 | \r |
392 | // Jungle Book - Rhythm 'n Groove\r | |
393 | // - turns off buzzing sound (loop hangs)\r | |
3154bfab | 394 | spu.dwNewChannel &= ~(1<<ch);\r |
ef79bbde P |
395 | } \r |
396 | }\r | |
397 | }\r | |
398 | \r | |
399 | ////////////////////////////////////////////////////////////////////////\r | |
400 | // FMOD register write\r | |
401 | ////////////////////////////////////////////////////////////////////////\r | |
402 | \r | |
7e44d49d | 403 | static void FModOn(int start,int end,unsigned short val)\r |
ef79bbde P |
404 | {\r |
405 | int ch;\r | |
406 | \r | |
407 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
408 | {\r | |
409 | if(val&1) // -> fmod on/off\r | |
410 | {\r | |
411 | if(ch>0) \r | |
412 | {\r | |
5514a050 | 413 | spu.s_chan[ch].bFMod=1; // --> sound channel\r |
414 | spu.s_chan[ch-1].bFMod=2; // --> freq channel\r | |
ef79bbde P |
415 | }\r |
416 | }\r | |
417 | else\r | |
418 | {\r | |
5514a050 | 419 | spu.s_chan[ch].bFMod=0; // --> turn off fmod\r |
420 | if(ch>0&&spu.s_chan[ch-1].bFMod==2)\r | |
421 | spu.s_chan[ch-1].bFMod=0;\r | |
ef79bbde P |
422 | }\r |
423 | }\r | |
424 | }\r | |
425 | \r | |
426 | ////////////////////////////////////////////////////////////////////////\r | |
427 | // NOISE register write\r | |
428 | ////////////////////////////////////////////////////////////////////////\r | |
429 | \r | |
7e44d49d | 430 | static void NoiseOn(int start,int end,unsigned short val)\r |
ef79bbde P |
431 | {\r |
432 | int ch;\r | |
433 | \r | |
434 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
435 | {\r | |
5514a050 | 436 | spu.s_chan[ch].bNoise=val&1; // -> noise on/off\r |
ef79bbde P |
437 | }\r |
438 | }\r | |
439 | \r | |
440 | ////////////////////////////////////////////////////////////////////////\r | |
441 | // LEFT VOLUME register write\r | |
442 | ////////////////////////////////////////////////////////////////////////\r | |
443 | \r | |
444 | // please note: sweep and phase invert are wrong... but I've never seen\r | |
445 | // them used\r | |
446 | \r | |
7e44d49d | 447 | static void SetVolumeL(unsigned char ch,short vol) // LEFT VOLUME\r |
ef79bbde | 448 | {\r |
ef79bbde P |
449 | if(vol&0x8000) // sweep?\r |
450 | {\r | |
451 | short sInc=1; // -> sweep up?\r | |
7df2c03c | 452 | log_unhandled("ch%d sweepl %04x\n", ch, vol);\r |
ef79bbde P |
453 | if(vol&0x2000) sInc=-1; // -> or down?\r |
454 | if(vol&0x1000) vol^=0xffff; // -> mmm... phase inverted? have to investigate this\r | |
455 | vol=((vol&0x7f)+1)/2; // -> sweep: 0..127 -> 0..64\r | |
456 | vol+=vol/(2*sInc); // -> HACK: we don't sweep right now, so we just raise/lower the volume by the half!\r | |
457 | vol*=128;\r | |
458 | }\r | |
459 | else // no sweep:\r | |
460 | {\r | |
461 | if(vol&0x4000) // -> mmm... phase inverted? have to investigate this\r | |
462 | //vol^=0xffff;\r | |
463 | vol=0x3fff-(vol&0x3fff);\r | |
464 | }\r | |
465 | \r | |
466 | vol&=0x3fff;\r | |
5514a050 | 467 | spu.s_chan[ch].iLeftVolume=vol; // store volume\r |
ef79bbde P |
468 | }\r |
469 | \r | |
470 | ////////////////////////////////////////////////////////////////////////\r | |
471 | // RIGHT VOLUME register write\r | |
472 | ////////////////////////////////////////////////////////////////////////\r | |
473 | \r | |
7e44d49d | 474 | static void SetVolumeR(unsigned char ch,short vol) // RIGHT VOLUME\r |
ef79bbde | 475 | {\r |
ef79bbde P |
476 | if(vol&0x8000) // comments... see above :)\r |
477 | {\r | |
478 | short sInc=1;\r | |
7df2c03c | 479 | log_unhandled("ch%d sweepr %04x\n", ch, vol);\r |
ef79bbde P |
480 | if(vol&0x2000) sInc=-1;\r |
481 | if(vol&0x1000) vol^=0xffff;\r | |
482 | vol=((vol&0x7f)+1)/2; \r | |
483 | vol+=vol/(2*sInc);\r | |
484 | vol*=128;\r | |
485 | }\r | |
486 | else \r | |
487 | {\r | |
488 | if(vol&0x4000) //vol=vol^=0xffff;\r | |
489 | vol=0x3fff-(vol&0x3fff);\r | |
490 | }\r | |
491 | \r | |
492 | vol&=0x3fff;\r | |
493 | \r | |
5514a050 | 494 | spu.s_chan[ch].iRightVolume=vol;\r |
ef79bbde P |
495 | }\r |
496 | \r | |
497 | ////////////////////////////////////////////////////////////////////////\r | |
498 | // PITCH register write\r | |
499 | ////////////////////////////////////////////////////////////////////////\r | |
500 | \r | |
7e44d49d | 501 | static void SetPitch(int ch,unsigned short val) // SET PITCH\r |
ef79bbde P |
502 | {\r |
503 | int NP;\r | |
504 | if(val>0x3fff) NP=0x3fff; // get pitch val\r | |
505 | else NP=val;\r | |
506 | \r | |
4f9efe54 | 507 | spu.s_chan[ch].iRawPitch = NP;\r |
508 | spu.s_chan[ch].sinc = NP << 4;\r | |
509 | spu.s_chan[ch].sinc_inv = 0;\r | |
4ecb720e | 510 | spu.s_chan[ch].bNewPitch = 1;\r |
df68316d | 511 | \r |
512 | // don't mess spu.dwChannelsAudible as adsr runs independently\r | |
ef79bbde P |
513 | }\r |
514 | \r | |
515 | ////////////////////////////////////////////////////////////////////////\r | |
516 | // REVERB register write\r | |
517 | ////////////////////////////////////////////////////////////////////////\r | |
518 | \r | |
7e44d49d | 519 | static void ReverbOn(int start,int end,unsigned short val)\r |
ef79bbde P |
520 | {\r |
521 | int ch;\r | |
522 | \r | |
523 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
524 | {\r | |
5514a050 | 525 | spu.s_chan[ch].bReverb=val&1; // -> reverb on/off\r |
ef79bbde P |
526 | }\r |
527 | }\r |