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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 |
a4621d43 | 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 | |
4b22d950 | 40 | static const uint32_t ignore_dupe[16] = {\r |
650adfd2 | 41 | // ch 0-15 c40 c80 cc0\r |
42 | 0x7f7f7f7f, 0x7f7f7f7f, 0x7f7f7f7f, 0x7f7f7f7f,\r | |
43 | // ch 16-24 d40 control reverb\r | |
4b22d950 | 44 | 0x7f7f7f7f, 0x7f7f7f7f, 0xff05ff0f, 0xffffffff,\r |
45 | 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,\r | |
46 | 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff\r | |
650adfd2 | 47 | };\r |
48 | \r | |
49 | void CALLBACK SPUwriteRegister(unsigned long reg, unsigned short val,\r | |
50 | unsigned int cycles)\r | |
ef79bbde | 51 | {\r |
4b22d950 | 52 | int r = reg & 0xffe;\r |
650adfd2 | 53 | int rofs = (r - 0xc00) >> 1;\r |
3154bfab | 54 | int changed = spu.regArea[rofs] != val;\r |
55 | spu.regArea[rofs] = val;\r | |
650adfd2 | 56 | \r |
57 | if (!changed && (ignore_dupe[rofs >> 5] & (1 << (rofs & 0x1f))))\r | |
58 | return;\r | |
59 | // zero keyon/keyoff?\r | |
60 | if (val == 0 && (r & 0xff8) == 0xd88)\r | |
61 | return;\r | |
62 | \r | |
63a4f6b6 | 63 | do_samples_if_needed(cycles, 0);\r |
ef79bbde P |
64 | \r |
65 | if(r>=0x0c00 && r<0x0d80) // some channel info?\r | |
66 | {\r | |
67 | int ch=(r>>4)-0xc0; // calc channel\r | |
68 | switch(r&0x0f)\r | |
69 | {\r | |
70 | //------------------------------------------------// r volume\r | |
71 | case 0: \r | |
72 | SetVolumeL((unsigned char)ch,val);\r | |
73 | break;\r | |
74 | //------------------------------------------------// l volume\r | |
75 | case 2: \r | |
76 | SetVolumeR((unsigned char)ch,val);\r | |
77 | break;\r | |
78 | //------------------------------------------------// pitch\r | |
79 | case 4: \r | |
80 | SetPitch(ch,val);\r | |
650adfd2 | 81 | goto upd_irq;\r |
ef79bbde P |
82 | //------------------------------------------------// start\r |
83 | case 6: \r | |
7e44d49d | 84 | // taken from regArea later\r |
ef79bbde P |
85 | break;\r |
86 | //------------------------------------------------// level with pre-calcs\r | |
87 | case 8:\r | |
88 | {\r | |
6d866bb7 | 89 | const unsigned long lval=val;\r |
ef79bbde | 90 | //---------------------------------------------//\r |
5514a050 | 91 | spu.s_chan[ch].ADSRX.AttackModeExp=(lval&0x8000)?1:0;\r |
92 | spu.s_chan[ch].ADSRX.AttackRate=(lval>>8) & 0x007f;\r | |
93 | spu.s_chan[ch].ADSRX.DecayRate=(lval>>4) & 0x000f;\r | |
94 | spu.s_chan[ch].ADSRX.SustainLevel=lval & 0x000f;\r | |
ef79bbde | 95 | //---------------------------------------------//\r |
ef79bbde P |
96 | }\r |
97 | break;\r | |
98 | //------------------------------------------------// adsr times with pre-calcs\r | |
99 | case 10:\r | |
100 | {\r | |
6d866bb7 | 101 | const unsigned long lval=val;\r |
ef79bbde P |
102 | \r |
103 | //----------------------------------------------//\r | |
5514a050 | 104 | spu.s_chan[ch].ADSRX.SustainModeExp = (lval&0x8000)?1:0;\r |
105 | spu.s_chan[ch].ADSRX.SustainIncrease= (lval&0x4000)?0:1;\r | |
106 | spu.s_chan[ch].ADSRX.SustainRate = (lval>>6) & 0x007f;\r | |
107 | spu.s_chan[ch].ADSRX.ReleaseModeExp = (lval&0x0020)?1:0;\r | |
108 | spu.s_chan[ch].ADSRX.ReleaseRate = lval & 0x001f;\r | |
ef79bbde | 109 | //----------------------------------------------//\r |
ef79bbde P |
110 | }\r |
111 | break;\r | |
112 | //------------------------------------------------// adsr volume... mmm have to investigate this\r | |
113 | case 12:\r | |
114 | break;\r | |
115 | //------------------------------------------------//\r | |
116 | case 14: // loop?\r | |
5514a050 | 117 | spu.s_chan[ch].pLoop=spu.spuMemC+((val&~1)<<3);\r |
16f3ca66 | 118 | spu.s_chan[ch].bIgnoreLoop = 1;\r |
650adfd2 | 119 | goto upd_irq;\r |
ef79bbde P |
120 | //------------------------------------------------//\r |
121 | }\r | |
ef79bbde P |
122 | return;\r |
123 | }\r | |
4b22d950 | 124 | else if (0x0e00 <= r && r < 0x0e60)\r |
125 | {\r | |
126 | int ch = (r >> 2) & 0x1f;\r | |
127 | log_unhandled("c%02d w %cvol %04x\n", ch, (r & 2) ? 'r' : 'l', val);\r | |
128 | spu.s_chan[ch].iVolume[(r >> 1) & 1] = (signed short)val >> 1;\r | |
129 | }\r | |
ef79bbde P |
130 | \r |
131 | switch(r)\r | |
132 | {\r | |
133 | //-------------------------------------------------//\r | |
134 | case H_SPUaddr:\r | |
3154bfab | 135 | spu.spuAddr = (unsigned long) val<<3;\r |
ef79bbde P |
136 | break;\r |
137 | //-------------------------------------------------//\r | |
138 | case H_SPUdata:\r | |
a4621d43 | 139 | *(unsigned short *)(spu.spuMemC + spu.spuAddr) = HTOLE16(val);\r |
5514a050 | 140 | spu.spuAddr += 2;\r |
141 | spu.spuAddr &= 0x7fffe;\r | |
ef79bbde P |
142 | break;\r |
143 | //-------------------------------------------------//\r | |
144 | case H_SPUctrl:\r | |
3154bfab | 145 | if (!(spu.spuCtrl & CTRL_IRQ)) {\r |
146 | spu.spuStat&=~STAT_IRQ;\r | |
650adfd2 | 147 | if (val & CTRL_IRQ)\r |
148 | schedule_next_irq();\r | |
149 | }\r | |
3154bfab | 150 | spu.spuCtrl=val;\r |
ef79bbde P |
151 | break;\r |
152 | //-------------------------------------------------//\r | |
153 | case H_SPUstat:\r | |
3154bfab | 154 | spu.spuStat=val&0xf800;\r |
ef79bbde P |
155 | break;\r |
156 | //-------------------------------------------------//\r | |
157 | case H_SPUReverbAddr:\r | |
650adfd2 | 158 | goto rvbd;\r |
ef79bbde P |
159 | //-------------------------------------------------//\r |
160 | case H_SPUirqAddr:\r | |
a5ff8be2 | 161 | //if (val & 1)\r |
162 | // log_unhandled("w irq with lsb: %08lx %04x\n", reg, val);\r | |
3154bfab | 163 | spu.pSpuIrq=spu.spuMemC+(((unsigned long) val<<3)&~0xf);\r |
650adfd2 | 164 | goto upd_irq;\r |
ef79bbde P |
165 | //-------------------------------------------------//\r |
166 | case H_SPUrvolL:\r | |
05c7cec7 | 167 | spu.rvb->VolLeft=val;\r |
ef79bbde P |
168 | break;\r |
169 | //-------------------------------------------------//\r | |
170 | case H_SPUrvolR:\r | |
05c7cec7 | 171 | spu.rvb->VolRight=val;\r |
ef79bbde P |
172 | break;\r |
173 | //-------------------------------------------------//\r | |
174 | \r | |
6c9db47c | 175 | case H_SPUmvolL:\r |
176 | case H_SPUmvolR:\r | |
177 | if (val & 0x8000)\r | |
178 | log_unhandled("w master sweep: %08lx %04x\n", reg, val);\r | |
179 | break;\r | |
180 | \r | |
181 | case 0x0dac:\r | |
182 | if (val != 4)\r | |
183 | log_unhandled("1f801dac %04x\n", val);\r | |
184 | break;\r | |
185 | \r | |
ef79bbde P |
186 | /*\r |
187 | case H_ExtLeft:\r | |
188 | //auxprintf("EL %d\n",val);\r | |
189 | break;\r | |
190 | //-------------------------------------------------//\r | |
191 | case H_ExtRight:\r | |
192 | //auxprintf("ER %d\n",val);\r | |
193 | break;\r | |
194 | //-------------------------------------------------//\r | |
195 | case H_SPUmvolL:\r | |
196 | //auxprintf("ML %d\n",val);\r | |
197 | break;\r | |
198 | //-------------------------------------------------//\r | |
199 | case H_SPUmvolR:\r | |
200 | //auxprintf("MR %d\n",val);\r | |
201 | break;\r | |
202 | //-------------------------------------------------//\r | |
203 | case H_SPUMute1:\r | |
204 | //auxprintf("M0 %04x\n",val);\r | |
205 | break;\r | |
206 | //-------------------------------------------------//\r | |
207 | case H_SPUMute2:\r | |
208 | //auxprintf("M1 %04x\n",val);\r | |
209 | break;\r | |
210 | */\r | |
211 | //-------------------------------------------------//\r | |
212 | case H_SPUon1:\r | |
213 | SoundOn(0,16,val);\r | |
214 | break;\r | |
215 | //-------------------------------------------------//\r | |
216 | case H_SPUon2:\r | |
217 | SoundOn(16,24,val);\r | |
218 | break;\r | |
219 | //-------------------------------------------------//\r | |
220 | case H_SPUoff1:\r | |
221 | SoundOff(0,16,val);\r | |
222 | break;\r | |
223 | //-------------------------------------------------//\r | |
224 | case H_SPUoff2:\r | |
225 | SoundOff(16,24,val);\r | |
226 | break;\r | |
227 | //-------------------------------------------------//\r | |
228 | case H_CDLeft:\r | |
b64fb891 | 229 | spu.iLeftXAVol=(int16_t)val;\r |
230 | if(spu.cddavCallback) spu.cddavCallback(0,(int16_t)val);\r | |
ef79bbde P |
231 | break;\r |
232 | case H_CDRight:\r | |
b64fb891 | 233 | spu.iRightXAVol=(int16_t)val;\r |
234 | if(spu.cddavCallback) spu.cddavCallback(1,(int16_t)val);\r | |
ef79bbde P |
235 | break;\r |
236 | //-------------------------------------------------//\r | |
237 | case H_FMod1:\r | |
238 | FModOn(0,16,val);\r | |
239 | break;\r | |
240 | //-------------------------------------------------//\r | |
241 | case H_FMod2:\r | |
242 | FModOn(16,24,val);\r | |
243 | break;\r | |
244 | //-------------------------------------------------//\r | |
245 | case H_Noise1:\r | |
246 | NoiseOn(0,16,val);\r | |
247 | break;\r | |
248 | //-------------------------------------------------//\r | |
249 | case H_Noise2:\r | |
250 | NoiseOn(16,24,val);\r | |
251 | break;\r | |
252 | //-------------------------------------------------//\r | |
253 | case H_RVBon1:\r | |
254 | ReverbOn(0,16,val);\r | |
255 | break;\r | |
256 | //-------------------------------------------------//\r | |
257 | case H_RVBon2:\r | |
258 | ReverbOn(16,24,val);\r | |
259 | break;\r | |
260 | //-------------------------------------------------//\r | |
7b2c4897 | 261 | case H_Reverb+0 : goto rvbd;\r |
262 | case H_Reverb+2 : goto rvbd;\r | |
263 | case H_Reverb+4 : spu.rvb->IIR_ALPHA=(short)val; break;\r | |
264 | case H_Reverb+6 : spu.rvb->ACC_COEF_A=(short)val; break;\r | |
265 | case H_Reverb+8 : spu.rvb->ACC_COEF_B=(short)val; break;\r | |
266 | case H_Reverb+10 : spu.rvb->ACC_COEF_C=(short)val; break;\r | |
267 | case H_Reverb+12 : spu.rvb->ACC_COEF_D=(short)val; break;\r | |
268 | case H_Reverb+14 : spu.rvb->IIR_COEF=(short)val; break;\r | |
269 | case H_Reverb+16 : spu.rvb->FB_ALPHA=(short)val; break;\r | |
270 | case H_Reverb+18 : spu.rvb->FB_X=(short)val; break;\r | |
271 | case H_Reverb+20 : goto rvbd;\r | |
272 | case H_Reverb+22 : goto rvbd;\r | |
273 | case H_Reverb+24 : goto rvbd;\r | |
274 | case H_Reverb+26 : goto rvbd;\r | |
275 | case H_Reverb+28 : goto rvbd;\r | |
276 | case H_Reverb+30 : goto rvbd;\r | |
277 | case H_Reverb+32 : goto rvbd;\r | |
278 | case H_Reverb+34 : goto rvbd;\r | |
279 | case H_Reverb+36 : goto rvbd;\r | |
280 | case H_Reverb+38 : goto rvbd;\r | |
281 | case H_Reverb+40 : goto rvbd;\r | |
282 | case H_Reverb+42 : goto rvbd;\r | |
283 | case H_Reverb+44 : goto rvbd;\r | |
284 | case H_Reverb+46 : goto rvbd;\r | |
285 | case H_Reverb+48 : goto rvbd;\r | |
286 | case H_Reverb+50 : goto rvbd;\r | |
287 | case H_Reverb+52 : goto rvbd;\r | |
288 | case H_Reverb+54 : goto rvbd;\r | |
289 | case H_Reverb+56 : goto rvbd;\r | |
290 | case H_Reverb+58 : goto rvbd;\r | |
291 | case H_Reverb+60 : spu.rvb->IN_COEF_L=(short)val; break;\r | |
292 | case H_Reverb+62 : spu.rvb->IN_COEF_R=(short)val; break;\r | |
ef79bbde | 293 | }\r |
650adfd2 | 294 | return;\r |
295 | \r | |
296 | upd_irq:\r | |
3154bfab | 297 | if (spu.spuCtrl & CTRL_IRQ)\r |
650adfd2 | 298 | schedule_next_irq();\r |
299 | return;\r | |
ef79bbde | 300 | \r |
650adfd2 | 301 | rvbd:\r |
05c7cec7 | 302 | spu.rvb->dirty = 1; // recalculate on next update\r |
ef79bbde P |
303 | }\r |
304 | \r | |
305 | ////////////////////////////////////////////////////////////////////////\r | |
306 | // READ REGISTER: called by main emu\r | |
307 | ////////////////////////////////////////////////////////////////////////\r | |
308 | \r | |
309 | unsigned short CALLBACK SPUreadRegister(unsigned long reg)\r | |
310 | {\r | |
4b22d950 | 311 | const unsigned long r = reg & 0xffe;\r |
ef79bbde | 312 | \r |
ef79bbde P |
313 | if(r>=0x0c00 && r<0x0d80)\r |
314 | {\r | |
315 | switch(r&0x0f)\r | |
316 | {\r | |
317 | case 12: // get adsr vol\r | |
318 | {\r | |
319 | const int ch=(r>>4)-0xc0;\r | |
3154bfab | 320 | if(spu.dwNewChannel&(1<<ch)) return 1; // we are started, but not processed? return 1\r |
5aa94fa0 | 321 | if((spu.dwChannelsAudible&(1<<ch)) && // same here... we haven't decoded one sample yet, so no envelope yet. return 1 as well\r |
5514a050 | 322 | !spu.s_chan[ch].ADSRX.EnvelopeVol)\r |
ef79bbde | 323 | return 1;\r |
5514a050 | 324 | return (unsigned short)(spu.s_chan[ch].ADSRX.EnvelopeVol>>16);\r |
ef79bbde P |
325 | }\r |
326 | \r | |
327 | case 14: // get loop address\r | |
328 | {\r | |
329 | const int ch=(r>>4)-0xc0;\r | |
5514a050 | 330 | return (unsigned short)((spu.s_chan[ch].pLoop-spu.spuMemC)>>3);\r |
ef79bbde P |
331 | }\r |
332 | }\r | |
333 | }\r | |
4b22d950 | 334 | else if (0x0e00 <= r && r < 0x0e60)\r |
335 | {\r | |
336 | int ch = (r >> 2) & 0x1f;\r | |
337 | int v = spu.s_chan[ch].iVolume[(r >> 1) & 1] << 1;\r | |
338 | log_unhandled("c%02d r %cvol %04x\n", ch, (r & 2) ? 'r' : 'l', v);\r | |
339 | return v;\r | |
340 | }\r | |
ef79bbde P |
341 | \r |
342 | switch(r)\r | |
343 | {\r | |
344 | case H_SPUctrl:\r | |
3154bfab | 345 | return spu.spuCtrl;\r |
ef79bbde P |
346 | \r |
347 | case H_SPUstat:\r | |
d056f51b | 348 | return (spu.spuStat & ~0x3F) | (spu.spuCtrl & 0x3F);\r |
ef79bbde P |
349 | \r |
350 | case H_SPUaddr:\r | |
3154bfab | 351 | return (unsigned short)(spu.spuAddr>>3);\r |
ef79bbde P |
352 | \r |
353 | case H_SPUdata:\r | |
354 | {\r | |
a4621d43 | 355 | unsigned short s = LE16TOH(*(unsigned short *)(spu.spuMemC + spu.spuAddr));\r |
5514a050 | 356 | spu.spuAddr += 2;\r |
357 | spu.spuAddr &= 0x7fffe;\r | |
ef79bbde P |
358 | return s;\r |
359 | }\r | |
360 | \r | |
ef79bbde P |
361 | //case H_SPUIsOn1:\r |
362 | // return IsSoundOn(0,16);\r | |
363 | \r | |
364 | //case H_SPUIsOn2:\r | |
365 | // return IsSoundOn(16,24);\r | |
366 | \r | |
6c9db47c | 367 | case H_SPUMute1:\r |
368 | case H_SPUMute2:\r | |
369 | log_unhandled("r isOn: %08lx\n", reg);\r | |
370 | break;\r | |
906b1599 | 371 | \r |
372 | case 0x0dac:\r | |
373 | case H_SPUirqAddr:\r | |
374 | case H_CDLeft:\r | |
375 | case H_CDRight:\r | |
376 | case H_ExtLeft:\r | |
377 | case H_ExtRight:\r | |
378 | break;\r | |
379 | \r | |
380 | default:\r | |
381 | if (r >= 0xda0)\r | |
382 | log_unhandled("spu r %08lx\n", reg);\r | |
383 | break;\r | |
ef79bbde P |
384 | }\r |
385 | \r | |
3154bfab | 386 | return spu.regArea[(r-0xc00)>>1];\r |
ef79bbde P |
387 | }\r |
388 | \r | |
389 | ////////////////////////////////////////////////////////////////////////\r | |
390 | // SOUND ON register write\r | |
391 | ////////////////////////////////////////////////////////////////////////\r | |
392 | \r | |
7e44d49d | 393 | static void SoundOn(int start,int end,unsigned short val)\r |
ef79bbde P |
394 | {\r |
395 | int ch;\r | |
396 | \r | |
397 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
398 | {\r | |
5fdcf5cd | 399 | if((val&1) && regAreaGetCh(ch, 6)) // mmm... start has to be set before key on !?!\r |
ef79bbde | 400 | {\r |
16f3ca66 | 401 | spu.s_chan[ch].bIgnoreLoop = 0;\r |
3154bfab | 402 | spu.dwNewChannel|=(1<<ch);\r |
ef79bbde P |
403 | }\r |
404 | }\r | |
405 | }\r | |
406 | \r | |
407 | ////////////////////////////////////////////////////////////////////////\r | |
408 | // SOUND OFF register write\r | |
409 | ////////////////////////////////////////////////////////////////////////\r | |
410 | \r | |
7e44d49d | 411 | static void SoundOff(int start,int end,unsigned short val)\r |
ef79bbde P |
412 | {\r |
413 | int ch;\r | |
414 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
415 | {\r | |
9ad8abfa | 416 | if(val&1)\r |
ef79bbde | 417 | {\r |
5514a050 | 418 | spu.s_chan[ch].ADSRX.State = ADSR_RELEASE;\r |
b00afb77 | 419 | \r |
420 | // Jungle Book - Rhythm 'n Groove\r | |
421 | // - turns off buzzing sound (loop hangs)\r | |
3154bfab | 422 | spu.dwNewChannel &= ~(1<<ch);\r |
ef79bbde P |
423 | } \r |
424 | }\r | |
425 | }\r | |
426 | \r | |
427 | ////////////////////////////////////////////////////////////////////////\r | |
428 | // FMOD register write\r | |
429 | ////////////////////////////////////////////////////////////////////////\r | |
430 | \r | |
7e44d49d | 431 | static void FModOn(int start,int end,unsigned short val)\r |
ef79bbde P |
432 | {\r |
433 | int ch;\r | |
434 | \r | |
435 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
436 | {\r | |
437 | if(val&1) // -> fmod on/off\r | |
438 | {\r | |
439 | if(ch>0) \r | |
440 | {\r | |
5514a050 | 441 | spu.s_chan[ch].bFMod=1; // --> sound channel\r |
442 | spu.s_chan[ch-1].bFMod=2; // --> freq channel\r | |
ef79bbde P |
443 | }\r |
444 | }\r | |
445 | else\r | |
446 | {\r | |
5514a050 | 447 | spu.s_chan[ch].bFMod=0; // --> turn off fmod\r |
448 | if(ch>0&&spu.s_chan[ch-1].bFMod==2)\r | |
449 | spu.s_chan[ch-1].bFMod=0;\r | |
ef79bbde P |
450 | }\r |
451 | }\r | |
452 | }\r | |
453 | \r | |
454 | ////////////////////////////////////////////////////////////////////////\r | |
455 | // NOISE register write\r | |
456 | ////////////////////////////////////////////////////////////////////////\r | |
457 | \r | |
7e44d49d | 458 | static void NoiseOn(int start,int end,unsigned short val)\r |
ef79bbde P |
459 | {\r |
460 | int ch;\r | |
461 | \r | |
462 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
463 | {\r | |
5514a050 | 464 | spu.s_chan[ch].bNoise=val&1; // -> noise on/off\r |
ef79bbde P |
465 | }\r |
466 | }\r | |
467 | \r | |
468 | ////////////////////////////////////////////////////////////////////////\r | |
469 | // LEFT VOLUME register write\r | |
470 | ////////////////////////////////////////////////////////////////////////\r | |
471 | \r | |
472 | // please note: sweep and phase invert are wrong... but I've never seen\r | |
473 | // them used\r | |
474 | \r | |
7e44d49d | 475 | static void SetVolumeL(unsigned char ch,short vol) // LEFT VOLUME\r |
ef79bbde | 476 | {\r |
ef79bbde P |
477 | if(vol&0x8000) // sweep?\r |
478 | {\r | |
479 | short sInc=1; // -> sweep up?\r | |
6c9db47c | 480 | log_unhandled("ch%d sweepl %04x\n", ch, vol);\r |
ef79bbde P |
481 | if(vol&0x2000) sInc=-1; // -> or down?\r |
482 | if(vol&0x1000) vol^=0xffff; // -> mmm... phase inverted? have to investigate this\r | |
483 | vol=((vol&0x7f)+1)/2; // -> sweep: 0..127 -> 0..64\r | |
484 | vol+=vol/(2*sInc); // -> HACK: we don't sweep right now, so we just raise/lower the volume by the half!\r | |
485 | vol*=128;\r | |
486 | }\r | |
487 | else // no sweep:\r | |
488 | {\r | |
489 | if(vol&0x4000) // -> mmm... phase inverted? have to investigate this\r | |
490 | //vol^=0xffff;\r | |
491 | vol=0x3fff-(vol&0x3fff);\r | |
492 | }\r | |
493 | \r | |
494 | vol&=0x3fff;\r | |
5514a050 | 495 | spu.s_chan[ch].iLeftVolume=vol; // store volume\r |
4b22d950 | 496 | //spu.regArea[(0xe00-0xc00)/2 + ch*2 + 0] = vol << 1;\r |
ef79bbde P |
497 | }\r |
498 | \r | |
499 | ////////////////////////////////////////////////////////////////////////\r | |
500 | // RIGHT VOLUME register write\r | |
501 | ////////////////////////////////////////////////////////////////////////\r | |
502 | \r | |
7e44d49d | 503 | static void SetVolumeR(unsigned char ch,short vol) // RIGHT VOLUME\r |
ef79bbde | 504 | {\r |
ef79bbde P |
505 | if(vol&0x8000) // comments... see above :)\r |
506 | {\r | |
507 | short sInc=1;\r | |
6c9db47c | 508 | log_unhandled("ch%d sweepr %04x\n", ch, vol);\r |
ef79bbde P |
509 | if(vol&0x2000) sInc=-1;\r |
510 | if(vol&0x1000) vol^=0xffff;\r | |
511 | vol=((vol&0x7f)+1)/2; \r | |
512 | vol+=vol/(2*sInc);\r | |
513 | vol*=128;\r | |
514 | }\r | |
515 | else \r | |
516 | {\r | |
517 | if(vol&0x4000) //vol=vol^=0xffff;\r | |
518 | vol=0x3fff-(vol&0x3fff);\r | |
519 | }\r | |
520 | \r | |
521 | vol&=0x3fff;\r | |
522 | \r | |
5514a050 | 523 | spu.s_chan[ch].iRightVolume=vol;\r |
4b22d950 | 524 | //spu.regArea[(0xe00-0xc00)/2 + ch*2 + 1] = vol << 1;\r |
ef79bbde P |
525 | }\r |
526 | \r | |
527 | ////////////////////////////////////////////////////////////////////////\r | |
528 | // PITCH register write\r | |
529 | ////////////////////////////////////////////////////////////////////////\r | |
530 | \r | |
7e44d49d | 531 | static void SetPitch(int ch,unsigned short val) // SET PITCH\r |
ef79bbde P |
532 | {\r |
533 | int NP;\r | |
534 | if(val>0x3fff) NP=0x3fff; // get pitch val\r | |
535 | else NP=val;\r | |
536 | \r | |
f3fa20c2 | 537 | spu.s_chan[ch].iRawPitch = NP;\r |
538 | spu.s_chan[ch].sinc = NP << 4;\r | |
539 | spu.s_chan[ch].sinc_inv = 0;\r | |
53d4b74d | 540 | spu.s_chan[ch].bNewPitch = 1;\r |
1d5d35bc | 541 | \r |
542 | // don't mess spu.dwChannelsAudible as adsr runs independently\r | |
ef79bbde P |
543 | }\r |
544 | \r | |
545 | ////////////////////////////////////////////////////////////////////////\r | |
546 | // REVERB register write\r | |
547 | ////////////////////////////////////////////////////////////////////////\r | |
548 | \r | |
7e44d49d | 549 | static void ReverbOn(int start,int end,unsigned short val)\r |
ef79bbde P |
550 | {\r |
551 | int ch;\r | |
552 | \r | |
553 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
554 | {\r | |
5514a050 | 555 | spu.s_chan[ch].bReverb=val&1; // -> reverb on/off\r |
ef79bbde P |
556 | }\r |
557 | }\r |