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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 | |
3fc2a418 | 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 | |
3fc2a418 | 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 |
3fc2a418 | 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 |
9601ca6d | 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 | |
3fc2a418 | 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 |
56e500f3 | 136 | //check_irq_io(spu.spuAddr);\r |
ef79bbde P |
137 | break;\r |
138 | //-------------------------------------------------//\r | |
139 | case H_SPUdata:\r | |
b71a957f | 140 | *(unsigned short *)(spu.spuMemC + spu.spuAddr) = HTOLE16(val);\r |
5514a050 | 141 | spu.spuAddr += 2;\r |
142 | spu.spuAddr &= 0x7fffe;\r | |
56e500f3 | 143 | check_irq_io(spu.spuAddr);\r |
ef79bbde P |
144 | break;\r |
145 | //-------------------------------------------------//\r | |
146 | case H_SPUctrl:\r | |
3154bfab | 147 | if (!(spu.spuCtrl & CTRL_IRQ)) {\r |
148 | spu.spuStat&=~STAT_IRQ;\r | |
650adfd2 | 149 | if (val & CTRL_IRQ)\r |
150 | schedule_next_irq();\r | |
151 | }\r | |
3154bfab | 152 | spu.spuCtrl=val;\r |
ef79bbde P |
153 | break;\r |
154 | //-------------------------------------------------//\r | |
155 | case H_SPUstat:\r | |
3154bfab | 156 | spu.spuStat=val&0xf800;\r |
ef79bbde P |
157 | break;\r |
158 | //-------------------------------------------------//\r | |
159 | case H_SPUReverbAddr:\r | |
650adfd2 | 160 | goto rvbd;\r |
ef79bbde P |
161 | //-------------------------------------------------//\r |
162 | case H_SPUirqAddr:\r | |
54604e03 | 163 | //if (val & 1)\r |
164 | // log_unhandled("w irq with lsb: %08lx %04x\n", reg, val);\r | |
56e500f3 | 165 | spu.pSpuIrq = spu.spuMemC + (((int)val << 3) & ~0xf);\r |
166 | //check_irq_io(spu.spuAddr);\r | |
650adfd2 | 167 | goto upd_irq;\r |
ef79bbde P |
168 | //-------------------------------------------------//\r |
169 | case H_SPUrvolL:\r | |
05c7cec7 | 170 | spu.rvb->VolLeft=val;\r |
ef79bbde P |
171 | break;\r |
172 | //-------------------------------------------------//\r | |
173 | case H_SPUrvolR:\r | |
05c7cec7 | 174 | spu.rvb->VolRight=val;\r |
ef79bbde P |
175 | break;\r |
176 | //-------------------------------------------------//\r | |
177 | \r | |
7df2c03c | 178 | case H_SPUmvolL:\r |
179 | case H_SPUmvolR:\r | |
180 | if (val & 0x8000)\r | |
181 | log_unhandled("w master sweep: %08lx %04x\n", reg, val);\r | |
182 | break;\r | |
183 | \r | |
184 | case 0x0dac:\r | |
185 | if (val != 4)\r | |
186 | log_unhandled("1f801dac %04x\n", val);\r | |
187 | break;\r | |
188 | \r | |
ef79bbde P |
189 | /*\r |
190 | case H_ExtLeft:\r | |
191 | //auxprintf("EL %d\n",val);\r | |
192 | break;\r | |
193 | //-------------------------------------------------//\r | |
194 | case H_ExtRight:\r | |
195 | //auxprintf("ER %d\n",val);\r | |
196 | break;\r | |
197 | //-------------------------------------------------//\r | |
198 | case H_SPUmvolL:\r | |
199 | //auxprintf("ML %d\n",val);\r | |
200 | break;\r | |
201 | //-------------------------------------------------//\r | |
202 | case H_SPUmvolR:\r | |
203 | //auxprintf("MR %d\n",val);\r | |
204 | break;\r | |
205 | //-------------------------------------------------//\r | |
206 | case H_SPUMute1:\r | |
207 | //auxprintf("M0 %04x\n",val);\r | |
208 | break;\r | |
209 | //-------------------------------------------------//\r | |
210 | case H_SPUMute2:\r | |
211 | //auxprintf("M1 %04x\n",val);\r | |
212 | break;\r | |
213 | */\r | |
214 | //-------------------------------------------------//\r | |
215 | case H_SPUon1:\r | |
216 | SoundOn(0,16,val);\r | |
217 | break;\r | |
218 | //-------------------------------------------------//\r | |
219 | case H_SPUon2:\r | |
220 | SoundOn(16,24,val);\r | |
221 | break;\r | |
222 | //-------------------------------------------------//\r | |
223 | case H_SPUoff1:\r | |
224 | SoundOff(0,16,val);\r | |
225 | break;\r | |
226 | //-------------------------------------------------//\r | |
227 | case H_SPUoff2:\r | |
228 | SoundOff(16,24,val);\r | |
229 | break;\r | |
230 | //-------------------------------------------------//\r | |
231 | case H_CDLeft:\r | |
7d6997de | 232 | spu.iLeftXAVol=(int16_t)val;\r |
233 | if(spu.cddavCallback) spu.cddavCallback(0,(int16_t)val);\r | |
ef79bbde P |
234 | break;\r |
235 | case H_CDRight:\r | |
7d6997de | 236 | spu.iRightXAVol=(int16_t)val;\r |
237 | if(spu.cddavCallback) spu.cddavCallback(1,(int16_t)val);\r | |
ef79bbde P |
238 | break;\r |
239 | //-------------------------------------------------//\r | |
240 | case H_FMod1:\r | |
241 | FModOn(0,16,val);\r | |
242 | break;\r | |
243 | //-------------------------------------------------//\r | |
244 | case H_FMod2:\r | |
245 | FModOn(16,24,val);\r | |
246 | break;\r | |
247 | //-------------------------------------------------//\r | |
248 | case H_Noise1:\r | |
249 | NoiseOn(0,16,val);\r | |
250 | break;\r | |
251 | //-------------------------------------------------//\r | |
252 | case H_Noise2:\r | |
253 | NoiseOn(16,24,val);\r | |
254 | break;\r | |
255 | //-------------------------------------------------//\r | |
256 | case H_RVBon1:\r | |
257 | ReverbOn(0,16,val);\r | |
258 | break;\r | |
259 | //-------------------------------------------------//\r | |
260 | case H_RVBon2:\r | |
261 | ReverbOn(16,24,val);\r | |
262 | break;\r | |
263 | //-------------------------------------------------//\r | |
7b2c4897 | 264 | case H_Reverb+0 : goto rvbd;\r |
265 | case H_Reverb+2 : goto rvbd;\r | |
266 | case H_Reverb+4 : spu.rvb->IIR_ALPHA=(short)val; break;\r | |
267 | case H_Reverb+6 : spu.rvb->ACC_COEF_A=(short)val; break;\r | |
268 | case H_Reverb+8 : spu.rvb->ACC_COEF_B=(short)val; break;\r | |
269 | case H_Reverb+10 : spu.rvb->ACC_COEF_C=(short)val; break;\r | |
270 | case H_Reverb+12 : spu.rvb->ACC_COEF_D=(short)val; break;\r | |
271 | case H_Reverb+14 : spu.rvb->IIR_COEF=(short)val; break;\r | |
272 | case H_Reverb+16 : spu.rvb->FB_ALPHA=(short)val; break;\r | |
273 | case H_Reverb+18 : spu.rvb->FB_X=(short)val; break;\r | |
274 | case H_Reverb+20 : goto rvbd;\r | |
275 | case H_Reverb+22 : goto rvbd;\r | |
276 | case H_Reverb+24 : goto rvbd;\r | |
277 | case H_Reverb+26 : goto rvbd;\r | |
278 | case H_Reverb+28 : goto rvbd;\r | |
279 | case H_Reverb+30 : goto rvbd;\r | |
280 | case H_Reverb+32 : goto rvbd;\r | |
281 | case H_Reverb+34 : goto rvbd;\r | |
282 | case H_Reverb+36 : goto rvbd;\r | |
283 | case H_Reverb+38 : goto rvbd;\r | |
284 | case H_Reverb+40 : goto rvbd;\r | |
285 | case H_Reverb+42 : goto rvbd;\r | |
286 | case H_Reverb+44 : goto rvbd;\r | |
287 | case H_Reverb+46 : goto rvbd;\r | |
288 | case H_Reverb+48 : goto rvbd;\r | |
289 | case H_Reverb+50 : goto rvbd;\r | |
290 | case H_Reverb+52 : goto rvbd;\r | |
291 | case H_Reverb+54 : goto rvbd;\r | |
292 | case H_Reverb+56 : goto rvbd;\r | |
293 | case H_Reverb+58 : goto rvbd;\r | |
294 | case H_Reverb+60 : spu.rvb->IN_COEF_L=(short)val; break;\r | |
295 | case H_Reverb+62 : spu.rvb->IN_COEF_R=(short)val; break;\r | |
ef79bbde | 296 | }\r |
650adfd2 | 297 | return;\r |
298 | \r | |
299 | upd_irq:\r | |
3154bfab | 300 | if (spu.spuCtrl & CTRL_IRQ)\r |
650adfd2 | 301 | schedule_next_irq();\r |
302 | return;\r | |
ef79bbde | 303 | \r |
650adfd2 | 304 | rvbd:\r |
05c7cec7 | 305 | spu.rvb->dirty = 1; // recalculate on next update\r |
ef79bbde P |
306 | }\r |
307 | \r | |
308 | ////////////////////////////////////////////////////////////////////////\r | |
309 | // READ REGISTER: called by main emu\r | |
310 | ////////////////////////////////////////////////////////////////////////\r | |
311 | \r | |
312 | unsigned short CALLBACK SPUreadRegister(unsigned long reg)\r | |
313 | {\r | |
3fc2a418 | 314 | const unsigned long r = reg & 0xffe;\r |
ef79bbde | 315 | \r |
ef79bbde P |
316 | if(r>=0x0c00 && r<0x0d80)\r |
317 | {\r | |
318 | switch(r&0x0f)\r | |
319 | {\r | |
320 | case 12: // get adsr vol\r | |
321 | {\r | |
322 | const int ch=(r>>4)-0xc0;\r | |
3154bfab | 323 | if(spu.dwNewChannel&(1<<ch)) return 1; // we are started, but not processed? return 1\r |
2daa7c1d | 324 | if((spu.dwChannelsAudible&(1<<ch)) && // same here... we haven't decoded one sample yet, so no envelope yet. return 1 as well\r |
5514a050 | 325 | !spu.s_chan[ch].ADSRX.EnvelopeVol)\r |
ef79bbde | 326 | return 1;\r |
5514a050 | 327 | return (unsigned short)(spu.s_chan[ch].ADSRX.EnvelopeVol>>16);\r |
ef79bbde P |
328 | }\r |
329 | \r | |
330 | case 14: // get loop address\r | |
331 | {\r | |
332 | const int ch=(r>>4)-0xc0;\r | |
5514a050 | 333 | return (unsigned short)((spu.s_chan[ch].pLoop-spu.spuMemC)>>3);\r |
ef79bbde P |
334 | }\r |
335 | }\r | |
336 | }\r | |
3fc2a418 | 337 | else if (0x0e00 <= r && r < 0x0e60)\r |
338 | {\r | |
339 | int ch = (r >> 2) & 0x1f;\r | |
340 | int v = spu.s_chan[ch].iVolume[(r >> 1) & 1] << 1;\r | |
341 | log_unhandled("c%02d r %cvol %04x\n", ch, (r & 2) ? 'r' : 'l', v);\r | |
342 | return v;\r | |
343 | }\r | |
ef79bbde P |
344 | \r |
345 | switch(r)\r | |
346 | {\r | |
347 | case H_SPUctrl:\r | |
3154bfab | 348 | return spu.spuCtrl;\r |
ef79bbde P |
349 | \r |
350 | case H_SPUstat:\r | |
acc08532 | 351 | return (spu.spuStat & ~0x3F) | (spu.spuCtrl & 0x3F);\r |
ef79bbde P |
352 | \r |
353 | case H_SPUaddr:\r | |
3154bfab | 354 | return (unsigned short)(spu.spuAddr>>3);\r |
ef79bbde | 355 | \r |
56e500f3 | 356 | // this reportedly doesn't work on real hw\r |
ef79bbde P |
357 | case H_SPUdata:\r |
358 | {\r | |
b71a957f | 359 | unsigned short s = LE16TOH(*(unsigned short *)(spu.spuMemC + spu.spuAddr));\r |
5514a050 | 360 | spu.spuAddr += 2;\r |
361 | spu.spuAddr &= 0x7fffe;\r | |
56e500f3 | 362 | //check_irq_io(spu.spuAddr);\r |
ef79bbde P |
363 | return s;\r |
364 | }\r | |
365 | \r | |
ef79bbde P |
366 | //case H_SPUIsOn1:\r |
367 | // return IsSoundOn(0,16);\r | |
368 | \r | |
369 | //case H_SPUIsOn2:\r | |
370 | // return IsSoundOn(16,24);\r | |
371 | \r | |
7df2c03c | 372 | case H_SPUMute1:\r |
373 | case H_SPUMute2:\r | |
374 | log_unhandled("r isOn: %08lx\n", reg);\r | |
375 | break;\r | |
380cbc61 | 376 | \r |
377 | case 0x0dac:\r | |
378 | case H_SPUirqAddr:\r | |
379 | case H_CDLeft:\r | |
380 | case H_CDRight:\r | |
381 | case H_ExtLeft:\r | |
382 | case H_ExtRight:\r | |
383 | break;\r | |
384 | \r | |
385 | default:\r | |
386 | if (r >= 0xda0)\r | |
387 | log_unhandled("spu r %08lx\n", reg);\r | |
388 | break;\r | |
ef79bbde P |
389 | }\r |
390 | \r | |
3154bfab | 391 | return spu.regArea[(r-0xc00)>>1];\r |
ef79bbde P |
392 | }\r |
393 | \r | |
394 | ////////////////////////////////////////////////////////////////////////\r | |
395 | // SOUND ON register write\r | |
396 | ////////////////////////////////////////////////////////////////////////\r | |
397 | \r | |
7e44d49d | 398 | static void SoundOn(int start,int end,unsigned short val)\r |
ef79bbde P |
399 | {\r |
400 | int ch;\r | |
401 | \r | |
402 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
403 | {\r | |
a0d4a8f5 | 404 | if((val&1) && regAreaGetCh(ch, 6)) // mmm... start has to be set before key on !?!\r |
ef79bbde | 405 | {\r |
9601ca6d | 406 | spu.s_chan[ch].bIgnoreLoop = 0;\r |
3154bfab | 407 | spu.dwNewChannel|=(1<<ch);\r |
ef79bbde P |
408 | }\r |
409 | }\r | |
410 | }\r | |
411 | \r | |
412 | ////////////////////////////////////////////////////////////////////////\r | |
413 | // SOUND OFF register write\r | |
414 | ////////////////////////////////////////////////////////////////////////\r | |
415 | \r | |
7e44d49d | 416 | static void SoundOff(int start,int end,unsigned short val)\r |
ef79bbde P |
417 | {\r |
418 | int ch;\r | |
419 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
420 | {\r | |
9ad8abfa | 421 | if(val&1)\r |
ef79bbde | 422 | {\r |
5514a050 | 423 | spu.s_chan[ch].ADSRX.State = ADSR_RELEASE;\r |
b00afb77 | 424 | \r |
425 | // Jungle Book - Rhythm 'n Groove\r | |
426 | // - turns off buzzing sound (loop hangs)\r | |
3154bfab | 427 | spu.dwNewChannel &= ~(1<<ch);\r |
ef79bbde P |
428 | } \r |
429 | }\r | |
430 | }\r | |
431 | \r | |
432 | ////////////////////////////////////////////////////////////////////////\r | |
433 | // FMOD register write\r | |
434 | ////////////////////////////////////////////////////////////////////////\r | |
435 | \r | |
7e44d49d | 436 | static void FModOn(int start,int end,unsigned short val)\r |
ef79bbde P |
437 | {\r |
438 | int ch;\r | |
439 | \r | |
440 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
441 | {\r | |
442 | if(val&1) // -> fmod on/off\r | |
443 | {\r | |
444 | if(ch>0) \r | |
445 | {\r | |
5514a050 | 446 | spu.s_chan[ch].bFMod=1; // --> sound channel\r |
447 | spu.s_chan[ch-1].bFMod=2; // --> freq channel\r | |
ef79bbde P |
448 | }\r |
449 | }\r | |
450 | else\r | |
451 | {\r | |
5514a050 | 452 | spu.s_chan[ch].bFMod=0; // --> turn off fmod\r |
453 | if(ch>0&&spu.s_chan[ch-1].bFMod==2)\r | |
454 | spu.s_chan[ch-1].bFMod=0;\r | |
ef79bbde P |
455 | }\r |
456 | }\r | |
457 | }\r | |
458 | \r | |
459 | ////////////////////////////////////////////////////////////////////////\r | |
460 | // NOISE register write\r | |
461 | ////////////////////////////////////////////////////////////////////////\r | |
462 | \r | |
7e44d49d | 463 | static void NoiseOn(int start,int end,unsigned short val)\r |
ef79bbde P |
464 | {\r |
465 | int ch;\r | |
466 | \r | |
467 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
468 | {\r | |
5514a050 | 469 | spu.s_chan[ch].bNoise=val&1; // -> noise on/off\r |
ef79bbde P |
470 | }\r |
471 | }\r | |
472 | \r | |
473 | ////////////////////////////////////////////////////////////////////////\r | |
474 | // LEFT VOLUME register write\r | |
475 | ////////////////////////////////////////////////////////////////////////\r | |
476 | \r | |
477 | // please note: sweep and phase invert are wrong... but I've never seen\r | |
478 | // them used\r | |
479 | \r | |
7e44d49d | 480 | static void SetVolumeL(unsigned char ch,short vol) // LEFT VOLUME\r |
ef79bbde | 481 | {\r |
ef79bbde P |
482 | if(vol&0x8000) // sweep?\r |
483 | {\r | |
484 | short sInc=1; // -> sweep up?\r | |
7df2c03c | 485 | log_unhandled("ch%d sweepl %04x\n", ch, vol);\r |
ef79bbde P |
486 | if(vol&0x2000) sInc=-1; // -> or down?\r |
487 | if(vol&0x1000) vol^=0xffff; // -> mmm... phase inverted? have to investigate this\r | |
488 | vol=((vol&0x7f)+1)/2; // -> sweep: 0..127 -> 0..64\r | |
489 | vol+=vol/(2*sInc); // -> HACK: we don't sweep right now, so we just raise/lower the volume by the half!\r | |
490 | vol*=128;\r | |
491 | }\r | |
492 | else // no sweep:\r | |
493 | {\r | |
494 | if(vol&0x4000) // -> mmm... phase inverted? have to investigate this\r | |
495 | //vol^=0xffff;\r | |
496 | vol=0x3fff-(vol&0x3fff);\r | |
497 | }\r | |
498 | \r | |
499 | vol&=0x3fff;\r | |
5514a050 | 500 | spu.s_chan[ch].iLeftVolume=vol; // store volume\r |
3fc2a418 | 501 | //spu.regArea[(0xe00-0xc00)/2 + ch*2 + 0] = vol << 1;\r |
ef79bbde P |
502 | }\r |
503 | \r | |
504 | ////////////////////////////////////////////////////////////////////////\r | |
505 | // RIGHT VOLUME register write\r | |
506 | ////////////////////////////////////////////////////////////////////////\r | |
507 | \r | |
7e44d49d | 508 | static void SetVolumeR(unsigned char ch,short vol) // RIGHT VOLUME\r |
ef79bbde | 509 | {\r |
ef79bbde P |
510 | if(vol&0x8000) // comments... see above :)\r |
511 | {\r | |
512 | short sInc=1;\r | |
7df2c03c | 513 | log_unhandled("ch%d sweepr %04x\n", ch, vol);\r |
ef79bbde P |
514 | if(vol&0x2000) sInc=-1;\r |
515 | if(vol&0x1000) vol^=0xffff;\r | |
516 | vol=((vol&0x7f)+1)/2; \r | |
517 | vol+=vol/(2*sInc);\r | |
518 | vol*=128;\r | |
519 | }\r | |
520 | else \r | |
521 | {\r | |
522 | if(vol&0x4000) //vol=vol^=0xffff;\r | |
523 | vol=0x3fff-(vol&0x3fff);\r | |
524 | }\r | |
525 | \r | |
526 | vol&=0x3fff;\r | |
527 | \r | |
5514a050 | 528 | spu.s_chan[ch].iRightVolume=vol;\r |
3fc2a418 | 529 | //spu.regArea[(0xe00-0xc00)/2 + ch*2 + 1] = vol << 1;\r |
ef79bbde P |
530 | }\r |
531 | \r | |
532 | ////////////////////////////////////////////////////////////////////////\r | |
533 | // PITCH register write\r | |
534 | ////////////////////////////////////////////////////////////////////////\r | |
535 | \r | |
7e44d49d | 536 | static void SetPitch(int ch,unsigned short val) // SET PITCH\r |
ef79bbde P |
537 | {\r |
538 | int NP;\r | |
539 | if(val>0x3fff) NP=0x3fff; // get pitch val\r | |
540 | else NP=val;\r | |
541 | \r | |
4f9efe54 | 542 | spu.s_chan[ch].iRawPitch = NP;\r |
543 | spu.s_chan[ch].sinc = NP << 4;\r | |
544 | spu.s_chan[ch].sinc_inv = 0;\r | |
4ecb720e | 545 | spu.s_chan[ch].bNewPitch = 1;\r |
df68316d | 546 | \r |
547 | // don't mess spu.dwChannelsAudible as adsr runs independently\r | |
ef79bbde P |
548 | }\r |
549 | \r | |
550 | ////////////////////////////////////////////////////////////////////////\r | |
551 | // REVERB register write\r | |
552 | ////////////////////////////////////////////////////////////////////////\r | |
553 | \r | |
7e44d49d | 554 | static void ReverbOn(int start,int end,unsigned short val)\r |
ef79bbde P |
555 | {\r |
556 | int ch;\r | |
557 | \r | |
558 | for(ch=start;ch<end;ch++,val>>=1) // loop channels\r | |
559 | {\r | |
5514a050 | 560 | spu.s_chan[ch].bReverb=val&1; // -> reverb on/off\r |
ef79bbde P |
561 | }\r |
562 | }\r |