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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 |
ef79bbde | 25 | \r |
7e44d49d | 26 | static void SoundOn(int start,int end,unsigned short val);\r |
27 | static void SoundOff(int start,int end,unsigned short val);\r | |
28 | static void FModOn(int start,int end,unsigned short val);\r | |
29 | static void NoiseOn(int start,int end,unsigned short val);\r | |
30 | static void SetVolumeL(unsigned char ch,short vol);\r | |
31 | static void SetVolumeR(unsigned char ch,short vol);\r | |
32 | static void SetPitch(int ch,unsigned short val);\r | |
33 | static void ReverbOn(int start,int end,unsigned short val);\r | |
34 | \r | |
ef79bbde P |
35 | ////////////////////////////////////////////////////////////////////////\r |
36 | // WRITE REGISTERS: called by main emu\r | |
37 | ////////////////////////////////////////////////////////////////////////\r | |
38 | \r | |
650adfd2 | 39 | static const uint32_t ignore_dupe[8] = {\r |
40 | // ch 0-15 c40 c80 cc0\r | |
41 | 0x7f7f7f7f, 0x7f7f7f7f, 0x7f7f7f7f, 0x7f7f7f7f,\r | |
42 | // ch 16-24 d40 control reverb\r | |
43 | 0x7f7f7f7f, 0x7f7f7f7f, 0xff05ff0f, 0xffffffff\r | |
44 | };\r | |
45 | \r | |
46 | void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val,\r | |
47 | unsigned int cycles)\r | |
ef79bbde | 48 | {\r |
650adfd2 | 49 | int r = reg & 0xfff;\r |
50 | int rofs = (r - 0xc00) >> 1;\r | |
3154bfab | 51 | int changed = spu.regArea[rofs] != val;\r |
52 | spu.regArea[rofs] = val;\r | |
650adfd2 | 53 | \r |
54 | if (!changed && (ignore_dupe[rofs >> 5] & (1 << (rofs & 0x1f))))\r | |
55 | return;\r | |
56 | // zero keyon/keyoff?\r | |
57 | if (val == 0 && (r & 0xff8) == 0xd88)\r | |
58 | return;\r | |
59 | \r | |
63a4f6b6 | 60 | do_samples_if_needed(cycles, 0);\r |
ef79bbde P |
61 | \r |
62 | if(r>=0x0c00 && r<0x0d80) // some channel info?\r | |
63 | {\r | |
64 | int ch=(r>>4)-0xc0; // calc channel\r | |
65 | switch(r&0x0f)\r | |
66 | {\r | |
67 | //------------------------------------------------// r volume\r | |
68 | case 0: \r | |
69 | SetVolumeL((unsigned char)ch,val);\r | |
70 | break;\r | |
71 | //------------------------------------------------// l volume\r | |
72 | case 2: \r | |
73 | SetVolumeR((unsigned char)ch,val);\r | |
74 | break;\r | |
75 | //------------------------------------------------// pitch\r | |
76 | case 4: \r | |
77 | SetPitch(ch,val);\r | |
650adfd2 | 78 | goto upd_irq;\r |
ef79bbde P |
79 | //------------------------------------------------// start\r |
80 | case 6: \r | |
7e44d49d | 81 | // taken from regArea later\r |
ef79bbde P |
82 | break;\r |
83 | //------------------------------------------------// level with pre-calcs\r | |
84 | case 8:\r | |
85 | {\r | |
6d866bb7 | 86 | const unsigned long lval=val;\r |
ef79bbde | 87 | //---------------------------------------------//\r |
5514a050 | 88 | spu.s_chan[ch].ADSRX.AttackModeExp=(lval&0x8000)?1:0;\r |
89 | spu.s_chan[ch].ADSRX.AttackRate=(lval>>8) & 0x007f;\r | |
90 | spu.s_chan[ch].ADSRX.DecayRate=(lval>>4) & 0x000f;\r | |
91 | spu.s_chan[ch].ADSRX.SustainLevel=lval & 0x000f;\r | |
ef79bbde | 92 | //---------------------------------------------//\r |
ef79bbde P |
93 | }\r |
94 | break;\r | |
95 | //------------------------------------------------// adsr times with pre-calcs\r | |
96 | case 10:\r | |
97 | {\r | |
6d866bb7 | 98 | const unsigned long lval=val;\r |
ef79bbde P |
99 | \r |
100 | //----------------------------------------------//\r | |
5514a050 | 101 | spu.s_chan[ch].ADSRX.SustainModeExp = (lval&0x8000)?1:0;\r |
102 | spu.s_chan[ch].ADSRX.SustainIncrease= (lval&0x4000)?0:1;\r | |
103 | spu.s_chan[ch].ADSRX.SustainRate = (lval>>6) & 0x007f;\r | |
104 | spu.s_chan[ch].ADSRX.ReleaseModeExp = (lval&0x0020)?1:0;\r | |
105 | spu.s_chan[ch].ADSRX.ReleaseRate = lval & 0x001f;\r | |
ef79bbde | 106 | //----------------------------------------------//\r |
ef79bbde P |
107 | }\r |
108 | break;\r | |
109 | //------------------------------------------------// adsr volume... mmm have to investigate this\r | |
110 | case 12:\r | |
111 | break;\r | |
112 | //------------------------------------------------//\r | |
113 | case 14: // loop?\r | |
5514a050 | 114 | spu.s_chan[ch].pLoop=spu.spuMemC+((val&~1)<<3);\r |
16f3ca66 | 115 | spu.s_chan[ch].bIgnoreLoop = 1;\r |
650adfd2 | 116 | goto upd_irq;\r |
ef79bbde P |
117 | //------------------------------------------------//\r |
118 | }\r | |
ef79bbde P |
119 | return;\r |
120 | }\r | |
121 | \r | |
122 | switch(r)\r | |
123 | {\r | |
124 | //-------------------------------------------------//\r | |
125 | case H_SPUaddr:\r | |
3154bfab | 126 | spu.spuAddr = (unsigned long) val<<3;\r |
ef79bbde P |
127 | break;\r |
128 | //-------------------------------------------------//\r | |
129 | case H_SPUdata:\r | |
5514a050 | 130 | *(unsigned short *)(spu.spuMemC + spu.spuAddr) = val;\r |
131 | spu.spuAddr += 2;\r | |
132 | spu.spuAddr &= 0x7fffe;\r | |
ef79bbde P |
133 | break;\r |
134 | //-------------------------------------------------//\r | |
135 | case H_SPUctrl:\r | |
3154bfab | 136 | if (!(spu.spuCtrl & CTRL_IRQ)) {\r |
137 | spu.spuStat&=~STAT_IRQ;\r | |
650adfd2 | 138 | if (val & CTRL_IRQ)\r |
139 | schedule_next_irq();\r | |
140 | }\r | |
3154bfab | 141 | spu.spuCtrl=val;\r |
ef79bbde P |
142 | break;\r |
143 | //-------------------------------------------------//\r | |
144 | case H_SPUstat:\r | |
3154bfab | 145 | spu.spuStat=val&0xf800;\r |
ef79bbde P |
146 | break;\r |
147 | //-------------------------------------------------//\r | |
148 | case H_SPUReverbAddr:\r | |
650adfd2 | 149 | goto rvbd;\r |
ef79bbde P |
150 | //-------------------------------------------------//\r |
151 | case H_SPUirqAddr:\r | |
a5ff8be2 | 152 | //if (val & 1)\r |
153 | // log_unhandled("w irq with lsb: %08lx %04x\n", reg, val);\r | |
3154bfab | 154 | spu.pSpuIrq=spu.spuMemC+(((unsigned long) val<<3)&~0xf);\r |
650adfd2 | 155 | goto upd_irq;\r |
ef79bbde P |
156 | //-------------------------------------------------//\r |
157 | case H_SPUrvolL:\r | |
05c7cec7 | 158 | spu.rvb->VolLeft=val;\r |
ef79bbde P |
159 | break;\r |
160 | //-------------------------------------------------//\r | |
161 | case H_SPUrvolR:\r | |
05c7cec7 | 162 | spu.rvb->VolRight=val;\r |
ef79bbde P |
163 | break;\r |
164 | //-------------------------------------------------//\r | |
165 | \r | |
6c9db47c | 166 | case H_SPUmvolL:\r |
167 | case H_SPUmvolR:\r | |
168 | if (val & 0x8000)\r | |
169 | log_unhandled("w master sweep: %08lx %04x\n", reg, val);\r | |
170 | break;\r | |
171 | \r | |
172 | case 0x0dac:\r | |
173 | if (val != 4)\r | |
174 | log_unhandled("1f801dac %04x\n", val);\r | |
175 | break;\r | |
176 | \r | |
ef79bbde P |
177 | /*\r |
178 | case H_ExtLeft:\r | |
179 | //auxprintf("EL %d\n",val);\r | |
180 | break;\r | |
181 | //-------------------------------------------------//\r | |
182 | case H_ExtRight:\r | |
183 | //auxprintf("ER %d\n",val);\r | |
184 | break;\r | |
185 | //-------------------------------------------------//\r | |
186 | case H_SPUmvolL:\r | |
187 | //auxprintf("ML %d\n",val);\r | |
188 | break;\r | |
189 | //-------------------------------------------------//\r | |
190 | case H_SPUmvolR:\r | |
191 | //auxprintf("MR %d\n",val);\r | |
192 | break;\r | |
193 | //-------------------------------------------------//\r | |
194 | case H_SPUMute1:\r | |
195 | //auxprintf("M0 %04x\n",val);\r | |
196 | break;\r | |
197 | //-------------------------------------------------//\r | |
198 | case H_SPUMute2:\r | |
199 | //auxprintf("M1 %04x\n",val);\r | |
200 | break;\r | |
201 | */\r | |
202 | //-------------------------------------------------//\r | |
203 | case H_SPUon1:\r | |
204 | SoundOn(0,16,val);\r | |
205 | break;\r | |
206 | //-------------------------------------------------//\r | |
207 | case H_SPUon2:\r | |
208 | SoundOn(16,24,val);\r | |
209 | break;\r | |
210 | //-------------------------------------------------//\r | |
211 | case H_SPUoff1:\r | |
212 | SoundOff(0,16,val);\r | |
213 | break;\r | |
214 | //-------------------------------------------------//\r | |
215 | case H_SPUoff2:\r | |
216 | SoundOff(16,24,val);\r | |
217 | break;\r | |
218 | //-------------------------------------------------//\r | |
219 | case H_CDLeft:\r | |
b64fb891 | 220 | spu.iLeftXAVol=(int16_t)val;\r |
221 | if(spu.cddavCallback) spu.cddavCallback(0,(int16_t)val);\r | |
ef79bbde P |
222 | break;\r |
223 | case H_CDRight:\r | |
b64fb891 | 224 | spu.iRightXAVol=(int16_t)val;\r |
225 | if(spu.cddavCallback) spu.cddavCallback(1,(int16_t)val);\r | |
ef79bbde P |
226 | break;\r |
227 | //-------------------------------------------------//\r | |
228 | case H_FMod1:\r | |
229 | FModOn(0,16,val);\r | |
230 | break;\r | |
231 | //-------------------------------------------------//\r | |
232 | case H_FMod2:\r | |
233 | FModOn(16,24,val);\r | |
234 | break;\r | |
235 | //-------------------------------------------------//\r | |
236 | case H_Noise1:\r | |
237 | NoiseOn(0,16,val);\r | |
238 | break;\r | |
239 | //-------------------------------------------------//\r | |
240 | case H_Noise2:\r | |
241 | NoiseOn(16,24,val);\r | |
242 | break;\r | |
243 | //-------------------------------------------------//\r | |
244 | case H_RVBon1:\r | |
245 | ReverbOn(0,16,val);\r | |
246 | break;\r | |
247 | //-------------------------------------------------//\r | |
248 | case H_RVBon2:\r | |
249 | ReverbOn(16,24,val);\r | |
250 | break;\r | |
251 | //-------------------------------------------------//\r | |
7b2c4897 | 252 | case H_Reverb+0 : goto rvbd;\r |
253 | case H_Reverb+2 : goto rvbd;\r | |
254 | case H_Reverb+4 : spu.rvb->IIR_ALPHA=(short)val; break;\r | |
255 | case H_Reverb+6 : spu.rvb->ACC_COEF_A=(short)val; break;\r | |
256 | case H_Reverb+8 : spu.rvb->ACC_COEF_B=(short)val; break;\r | |
257 | case H_Reverb+10 : spu.rvb->ACC_COEF_C=(short)val; break;\r | |
258 | case H_Reverb+12 : spu.rvb->ACC_COEF_D=(short)val; break;\r | |
259 | case H_Reverb+14 : spu.rvb->IIR_COEF=(short)val; break;\r | |
260 | case H_Reverb+16 : spu.rvb->FB_ALPHA=(short)val; break;\r | |
261 | case H_Reverb+18 : spu.rvb->FB_X=(short)val; break;\r | |
262 | case H_Reverb+20 : goto rvbd;\r | |
263 | case H_Reverb+22 : goto rvbd;\r | |
264 | case H_Reverb+24 : goto rvbd;\r | |
265 | case H_Reverb+26 : goto rvbd;\r | |
266 | case H_Reverb+28 : goto rvbd;\r | |
267 | case H_Reverb+30 : goto rvbd;\r | |
268 | case H_Reverb+32 : goto rvbd;\r | |
269 | case H_Reverb+34 : goto rvbd;\r | |
270 | case H_Reverb+36 : goto rvbd;\r | |
271 | case H_Reverb+38 : goto rvbd;\r | |
272 | case H_Reverb+40 : goto rvbd;\r | |
273 | case H_Reverb+42 : goto rvbd;\r | |
274 | case H_Reverb+44 : goto rvbd;\r | |
275 | case H_Reverb+46 : goto rvbd;\r | |
276 | case H_Reverb+48 : goto rvbd;\r | |
277 | case H_Reverb+50 : goto rvbd;\r | |
278 | case H_Reverb+52 : goto rvbd;\r | |
279 | case H_Reverb+54 : goto rvbd;\r | |
280 | case H_Reverb+56 : goto rvbd;\r | |
281 | case H_Reverb+58 : goto rvbd;\r | |
282 | case H_Reverb+60 : spu.rvb->IN_COEF_L=(short)val; break;\r | |
283 | case H_Reverb+62 : spu.rvb->IN_COEF_R=(short)val; break;\r | |
ef79bbde | 284 | }\r |
650adfd2 | 285 | return;\r |
286 | \r | |
287 | upd_irq:\r | |
3154bfab | 288 | if (spu.spuCtrl & CTRL_IRQ)\r |
650adfd2 | 289 | schedule_next_irq();\r |
290 | return;\r | |
ef79bbde | 291 | \r |
650adfd2 | 292 | rvbd:\r |
05c7cec7 | 293 | spu.rvb->dirty = 1; // recalculate on next update\r |
ef79bbde P |
294 | }\r |
295 | \r | |
296 | ////////////////////////////////////////////////////////////////////////\r | |
297 | // READ REGISTER: called by main emu\r | |
298 | ////////////////////////////////////////////////////////////////////////\r | |
299 | \r | |
300 | unsigned short CALLBACK SPUreadRegister(unsigned long reg)\r | |
301 | {\r | |
302 | const unsigned long r=reg&0xfff;\r | |
303 | \r | |
ef79bbde P |
304 | if(r>=0x0c00 && r<0x0d80)\r |
305 | {\r | |
306 | switch(r&0x0f)\r | |
307 | {\r | |
308 | case 12: // get adsr vol\r | |
309 | {\r | |
310 | const int ch=(r>>4)-0xc0;\r | |
3154bfab | 311 | if(spu.dwNewChannel&(1<<ch)) return 1; // we are started, but not processed? return 1\r |
5aa94fa0 | 312 | if((spu.dwChannelsAudible&(1<<ch)) && // same here... we haven't decoded one sample yet, so no envelope yet. return 1 as well\r |
5514a050 | 313 | !spu.s_chan[ch].ADSRX.EnvelopeVol)\r |
ef79bbde | 314 | return 1;\r |
5514a050 | 315 | return (unsigned short)(spu.s_chan[ch].ADSRX.EnvelopeVol>>16);\r |
ef79bbde P |
316 | }\r |
317 | \r | |
318 | case 14: // get loop address\r | |
319 | {\r | |
320 | const int ch=(r>>4)-0xc0;\r | |
5514a050 | 321 | return (unsigned short)((spu.s_chan[ch].pLoop-spu.spuMemC)>>3);\r |
ef79bbde P |
322 | }\r |
323 | }\r | |
324 | }\r | |
325 | \r | |
326 | switch(r)\r | |
327 | {\r | |
328 | case H_SPUctrl:\r | |
3154bfab | 329 | return spu.spuCtrl;\r |
ef79bbde P |
330 | \r |
331 | case H_SPUstat:\r | |
d056f51b | 332 | return (spu.spuStat & ~0x3F) | (spu.spuCtrl & 0x3F);\r |
ef79bbde P |
333 | \r |
334 | case H_SPUaddr:\r | |
3154bfab | 335 | return (unsigned short)(spu.spuAddr>>3);\r |
ef79bbde P |
336 | \r |
337 | case H_SPUdata:\r | |
338 | {\r | |
5514a050 | 339 | unsigned short s = *(unsigned short *)(spu.spuMemC + spu.spuAddr);\r |
340 | spu.spuAddr += 2;\r | |
341 | spu.spuAddr &= 0x7fffe;\r | |
ef79bbde P |
342 | return s;\r |
343 | }\r | |
344 | \r | |
ef79bbde P |
345 | //case H_SPUIsOn1:\r |
346 | // return IsSoundOn(0,16);\r | |
347 | \r | |
348 | //case H_SPUIsOn2:\r | |
349 | // return IsSoundOn(16,24);\r | |
350 | \r | |
6c9db47c | 351 | case H_SPUMute1:\r |
352 | case H_SPUMute2:\r | |
353 | log_unhandled("r isOn: %08lx\n", reg);\r | |
354 | break;\r | |
ef79bbde P |
355 | }\r |
356 | \r | |
3154bfab | 357 | return spu.regArea[(r-0xc00)>>1];\r |
ef79bbde P |
358 | }\r |
359 | \r | |
360 | ////////////////////////////////////////////////////////////////////////\r | |
361 | // SOUND ON register write\r | |
362 | ////////////////////////////////////////////////////////////////////////\r | |
363 | \r | |
7e44d49d | 364 | static void SoundOn(int start,int end,unsigned short val)\r |
ef79bbde P |
365 | {\r |
366 | int ch;\r | |
367 | \r | |
368 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
369 | {\r | |
5fdcf5cd | 370 | if((val&1) && regAreaGetCh(ch, 6)) // mmm... start has to be set before key on !?!\r |
ef79bbde | 371 | {\r |
16f3ca66 | 372 | spu.s_chan[ch].bIgnoreLoop = 0;\r |
3154bfab | 373 | spu.dwNewChannel|=(1<<ch);\r |
ef79bbde P |
374 | }\r |
375 | }\r | |
376 | }\r | |
377 | \r | |
378 | ////////////////////////////////////////////////////////////////////////\r | |
379 | // SOUND OFF register write\r | |
380 | ////////////////////////////////////////////////////////////////////////\r | |
381 | \r | |
7e44d49d | 382 | static void SoundOff(int start,int end,unsigned short val)\r |
ef79bbde P |
383 | {\r |
384 | int ch;\r | |
385 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
386 | {\r | |
9ad8abfa | 387 | if(val&1)\r |
ef79bbde | 388 | {\r |
5514a050 | 389 | spu.s_chan[ch].ADSRX.State = ADSR_RELEASE;\r |
b00afb77 | 390 | \r |
391 | // Jungle Book - Rhythm 'n Groove\r | |
392 | // - turns off buzzing sound (loop hangs)\r | |
3154bfab | 393 | spu.dwNewChannel &= ~(1<<ch);\r |
ef79bbde P |
394 | } \r |
395 | }\r | |
396 | }\r | |
397 | \r | |
398 | ////////////////////////////////////////////////////////////////////////\r | |
399 | // FMOD register write\r | |
400 | ////////////////////////////////////////////////////////////////////////\r | |
401 | \r | |
7e44d49d | 402 | static void FModOn(int start,int end,unsigned short val)\r |
ef79bbde P |
403 | {\r |
404 | int ch;\r | |
405 | \r | |
406 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
407 | {\r | |
408 | if(val&1) // -> fmod on/off\r | |
409 | {\r | |
410 | if(ch>0) \r | |
411 | {\r | |
5514a050 | 412 | spu.s_chan[ch].bFMod=1; // --> sound channel\r |
413 | spu.s_chan[ch-1].bFMod=2; // --> freq channel\r | |
ef79bbde P |
414 | }\r |
415 | }\r | |
416 | else\r | |
417 | {\r | |
5514a050 | 418 | spu.s_chan[ch].bFMod=0; // --> turn off fmod\r |
419 | if(ch>0&&spu.s_chan[ch-1].bFMod==2)\r | |
420 | spu.s_chan[ch-1].bFMod=0;\r | |
ef79bbde P |
421 | }\r |
422 | }\r | |
423 | }\r | |
424 | \r | |
425 | ////////////////////////////////////////////////////////////////////////\r | |
426 | // NOISE register write\r | |
427 | ////////////////////////////////////////////////////////////////////////\r | |
428 | \r | |
7e44d49d | 429 | static void NoiseOn(int start,int end,unsigned short val)\r |
ef79bbde P |
430 | {\r |
431 | int ch;\r | |
432 | \r | |
433 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
434 | {\r | |
5514a050 | 435 | spu.s_chan[ch].bNoise=val&1; // -> noise on/off\r |
ef79bbde P |
436 | }\r |
437 | }\r | |
438 | \r | |
439 | ////////////////////////////////////////////////////////////////////////\r | |
440 | // LEFT VOLUME register write\r | |
441 | ////////////////////////////////////////////////////////////////////////\r | |
442 | \r | |
443 | // please note: sweep and phase invert are wrong... but I've never seen\r | |
444 | // them used\r | |
445 | \r | |
7e44d49d | 446 | static void SetVolumeL(unsigned char ch,short vol) // LEFT VOLUME\r |
ef79bbde | 447 | {\r |
ef79bbde P |
448 | if(vol&0x8000) // sweep?\r |
449 | {\r | |
450 | short sInc=1; // -> sweep up?\r | |
6c9db47c | 451 | log_unhandled("ch%d sweepl %04x\n", ch, vol);\r |
ef79bbde P |
452 | if(vol&0x2000) sInc=-1; // -> or down?\r |
453 | if(vol&0x1000) vol^=0xffff; // -> mmm... phase inverted? have to investigate this\r | |
454 | vol=((vol&0x7f)+1)/2; // -> sweep: 0..127 -> 0..64\r | |
455 | vol+=vol/(2*sInc); // -> HACK: we don't sweep right now, so we just raise/lower the volume by the half!\r | |
456 | vol*=128;\r | |
457 | }\r | |
458 | else // no sweep:\r | |
459 | {\r | |
460 | if(vol&0x4000) // -> mmm... phase inverted? have to investigate this\r | |
461 | //vol^=0xffff;\r | |
462 | vol=0x3fff-(vol&0x3fff);\r | |
463 | }\r | |
464 | \r | |
465 | vol&=0x3fff;\r | |
5514a050 | 466 | spu.s_chan[ch].iLeftVolume=vol; // store volume\r |
ef79bbde P |
467 | }\r |
468 | \r | |
469 | ////////////////////////////////////////////////////////////////////////\r | |
470 | // RIGHT VOLUME register write\r | |
471 | ////////////////////////////////////////////////////////////////////////\r | |
472 | \r | |
7e44d49d | 473 | static void SetVolumeR(unsigned char ch,short vol) // RIGHT VOLUME\r |
ef79bbde | 474 | {\r |
ef79bbde P |
475 | if(vol&0x8000) // comments... see above :)\r |
476 | {\r | |
477 | short sInc=1;\r | |
6c9db47c | 478 | log_unhandled("ch%d sweepr %04x\n", ch, vol);\r |
ef79bbde P |
479 | if(vol&0x2000) sInc=-1;\r |
480 | if(vol&0x1000) vol^=0xffff;\r | |
481 | vol=((vol&0x7f)+1)/2; \r | |
482 | vol+=vol/(2*sInc);\r | |
483 | vol*=128;\r | |
484 | }\r | |
485 | else \r | |
486 | {\r | |
487 | if(vol&0x4000) //vol=vol^=0xffff;\r | |
488 | vol=0x3fff-(vol&0x3fff);\r | |
489 | }\r | |
490 | \r | |
491 | vol&=0x3fff;\r | |
492 | \r | |
5514a050 | 493 | spu.s_chan[ch].iRightVolume=vol;\r |
ef79bbde P |
494 | }\r |
495 | \r | |
496 | ////////////////////////////////////////////////////////////////////////\r | |
497 | // PITCH register write\r | |
498 | ////////////////////////////////////////////////////////////////////////\r | |
499 | \r | |
7e44d49d | 500 | static void SetPitch(int ch,unsigned short val) // SET PITCH\r |
ef79bbde P |
501 | {\r |
502 | int NP;\r | |
503 | if(val>0x3fff) NP=0x3fff; // get pitch val\r | |
504 | else NP=val;\r | |
505 | \r | |
f3fa20c2 | 506 | spu.s_chan[ch].iRawPitch = NP;\r |
507 | spu.s_chan[ch].sinc = NP << 4;\r | |
508 | spu.s_chan[ch].sinc_inv = 0;\r | |
53d4b74d | 509 | spu.s_chan[ch].bNewPitch = 1;\r |
1d5d35bc | 510 | \r |
511 | // don't mess spu.dwChannelsAudible as adsr runs independently\r | |
ef79bbde P |
512 | }\r |
513 | \r | |
514 | ////////////////////////////////////////////////////////////////////////\r | |
515 | // REVERB register write\r | |
516 | ////////////////////////////////////////////////////////////////////////\r | |
517 | \r | |
7e44d49d | 518 | static void ReverbOn(int start,int end,unsigned short val)\r |
ef79bbde P |
519 | {\r |
520 | int ch;\r | |
521 | \r | |
522 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
523 | {\r | |
5514a050 | 524 | spu.s_chan[ch].bReverb=val&1; // -> reverb on/off\r |
ef79bbde P |
525 | }\r |
526 | }\r |