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