d97315ac |
1 | /*********************************************************************************** |
2 | |
3 | emu2413.c -- YM2413 emulator written by Mitsutaka Okazaki 2001 |
4 | |
5 | 2001 01-08 : Version 0.10 -- 1st version. |
6 | 2001 01-15 : Version 0.20 -- semi-public version. |
7 | 2001 01-16 : Version 0.30 -- 1st public version. |
8 | 2001 01-17 : Version 0.31 -- Fixed bassdrum problem. |
9 | : Version 0.32 -- LPF implemented. |
10 | 2001 01-18 : Version 0.33 -- Fixed the drum problem, refine the mix-down method. |
11 | -- Fixed the LFO bug. |
12 | 2001 01-24 : Version 0.35 -- Fixed the drum problem, |
13 | support undocumented EG behavior. |
14 | 2001 02-02 : Version 0.38 -- Improved the performance. |
15 | Fixed the hi-hat and cymbal model. |
16 | Fixed the default percussive datas. |
17 | Noise reduction. |
18 | Fixed the feedback problem. |
19 | 2001 03-03 : Version 0.39 -- Fixed some drum bugs. |
20 | Improved the performance. |
21 | 2001 03-04 : Version 0.40 -- Improved the feedback. |
22 | Change the default table size. |
23 | Clock and Rate can be changed during play. |
24 | 2001 06-24 : Version 0.50 -- Improved the hi-hat and the cymbal tone. |
25 | Added VRC7 patch (OPLL_reset_patch is changed). |
26 | Fixed OPLL_reset() bug. |
27 | Added OPLL_setMask, OPLL_getMask and OPLL_toggleMask. |
28 | Added OPLL_writeIO. |
29 | 2001 09-28 : Version 0.51 -- Removed the noise table. |
30 | 2002 01-28 : Version 0.52 -- Added Stereo mode. |
31 | 2002 02-07 : Version 0.53 -- Fixed some drum bugs. |
32 | 2002 02-20 : Version 0.54 -- Added the best quality mode. |
33 | 2002 03-02 : Version 0.55 -- Removed OPLL_init & OPLL_close. |
34 | 2002 05-30 : Version 0.60 -- Fixed HH&CYM generator and all voice datas. |
35 | |
36 | 2004 01-24 : Modified by xodnizel to remove code not needed for the VRC7, among other things. |
37 | |
38 | References: |
39 | fmopl.c -- 1999,2000 written by Tatsuyuki Satoh (MAME development). |
40 | fmopl.c(fixed) -- (C) 2002 Jarek Burczynski. |
41 | s_opl.c -- 2001 written by Mamiya (NEZplug development). |
42 | fmgen.cpp -- 1999,2000 written by cisc. |
43 | fmpac.ill -- 2000 created by NARUTO. |
44 | MSX-Datapack |
45 | YMU757 data sheet |
46 | YM2143 data sheet |
47 | |
48 | **************************************************************************************/ |
49 | #include <stdio.h> |
50 | #include <stdlib.h> |
51 | #include <string.h> |
52 | #include <math.h> |
53 | #include "emu2413.h" |
54 | |
55 | static const unsigned char default_inst[15][8] = { |
56 | #include "vrc7tone.h" |
57 | }; |
58 | |
59 | /* Size of Sintable ( 8 -- 18 can be used. 9 recommended.)*/ |
60 | #define PG_BITS 9 |
61 | #define PG_WIDTH (1<<PG_BITS) |
62 | |
63 | /* Phase increment counter */ |
64 | #define DP_BITS 18 |
65 | #define DP_WIDTH (1<<DP_BITS) |
66 | #define DP_BASE_BITS (DP_BITS - PG_BITS) |
67 | |
68 | /* Dynamic range (Accuracy of sin table) */ |
69 | #define DB_BITS 8 |
70 | #define DB_STEP (48.0/(1<<DB_BITS)) |
71 | #define DB_MUTE (1<<DB_BITS) |
72 | |
73 | /* Dynamic range of envelope */ |
74 | #define EG_STEP 0.375 |
75 | #define EG_BITS 7 |
76 | #define EG_MUTE (1<<EG_BITS) |
77 | |
78 | /* Dynamic range of total level */ |
79 | #define TL_STEP 0.75 |
80 | #define TL_BITS 6 |
81 | #define TL_MUTE (1<<TL_BITS) |
82 | |
83 | /* Dynamic range of sustine level */ |
84 | #define SL_STEP 3.0 |
85 | #define SL_BITS 4 |
86 | #define SL_MUTE (1<<SL_BITS) |
87 | |
88 | #define EG2DB(d) ((d)*(e_int32)(EG_STEP/DB_STEP)) |
89 | #define TL2EG(d) ((d)*(e_int32)(TL_STEP/EG_STEP)) |
90 | #define SL2EG(d) ((d)*(e_int32)(SL_STEP/EG_STEP)) |
91 | |
92 | #define DB_POS(x) (e_uint32)((x)/DB_STEP) |
93 | #define DB_NEG(x) (e_uint32)(DB_MUTE+DB_MUTE+(x)/DB_STEP) |
94 | |
95 | /* Bits for liner value */ |
96 | #define DB2LIN_AMP_BITS 11 |
97 | #define SLOT_AMP_BITS (DB2LIN_AMP_BITS) |
98 | |
99 | /* Bits for envelope phase incremental counter */ |
100 | #define EG_DP_BITS 22 |
101 | #define EG_DP_WIDTH (1<<EG_DP_BITS) |
102 | |
103 | /* Bits for Pitch and Amp modulator */ |
104 | #define PM_PG_BITS 8 |
105 | #define PM_PG_WIDTH (1<<PM_PG_BITS) |
106 | #define PM_DP_BITS 16 |
107 | #define PM_DP_WIDTH (1<<PM_DP_BITS) |
108 | #define AM_PG_BITS 8 |
109 | #define AM_PG_WIDTH (1<<AM_PG_BITS) |
110 | #define AM_DP_BITS 16 |
111 | #define AM_DP_WIDTH (1<<AM_DP_BITS) |
112 | |
113 | /* PM table is calcurated by PM_AMP * pow(2,PM_DEPTH*sin(x)/1200) */ |
114 | #define PM_AMP_BITS 8 |
115 | #define PM_AMP (1<<PM_AMP_BITS) |
116 | |
117 | /* PM speed(Hz) and depth(cent) */ |
118 | #define PM_SPEED 6.4 |
119 | #define PM_DEPTH 13.75 |
120 | |
121 | /* AM speed(Hz) and depth(dB) */ |
122 | #define AM_SPEED 3.7 |
123 | //#define AM_DEPTH 4.8 |
124 | #define AM_DEPTH 2.4 |
125 | |
126 | /* Cut the lower b bit(s) off. */ |
127 | #define HIGHBITS(c,b) ((c)>>(b)) |
128 | |
129 | /* Leave the lower b bit(s). */ |
130 | #define LOWBITS(c,b) ((c)&((1<<(b))-1)) |
131 | |
132 | /* Expand x which is s bits to d bits. */ |
133 | #define EXPAND_BITS(x,s,d) ((x)<<((d)-(s))) |
134 | |
135 | /* Expand x which is s bits to d bits and fill expanded bits '1' */ |
136 | #define EXPAND_BITS_X(x,s,d) (((x)<<((d)-(s)))|((1<<((d)-(s)))-1)) |
137 | |
138 | /* Adjust envelope speed which depends on sampling rate. */ |
139 | #define rate_adjust(x) (rate==49716?x:(e_uint32)((double)(x)*clk/72/rate + 0.5)) /* added 0.5 to round the value*/ |
140 | |
141 | #define MOD(o,x) (&(o)->slot[(x)<<1]) |
142 | #define CAR(o,x) (&(o)->slot[((x)<<1)|1]) |
143 | |
144 | #define BIT(s,b) (((s)>>(b))&1) |
145 | |
146 | /* Input clock */ |
147 | static e_uint32 clk = 844451141; |
148 | /* Sampling rate */ |
149 | static e_uint32 rate = 3354932; |
150 | |
151 | /* WaveTable for each envelope amp */ |
152 | static e_uint16 fullsintable[PG_WIDTH]; |
153 | static e_uint16 halfsintable[PG_WIDTH]; |
154 | |
155 | static e_uint16 *waveform[2] = { fullsintable, halfsintable }; |
156 | |
157 | /* LFO Table */ |
158 | static e_int32 pmtable[PM_PG_WIDTH]; |
159 | static e_int32 amtable[AM_PG_WIDTH]; |
160 | |
161 | /* Phase delta for LFO */ |
162 | static e_uint32 pm_dphase; |
163 | static e_uint32 am_dphase; |
164 | |
165 | /* dB to Liner table */ |
166 | static e_int16 DB2LIN_TABLE[(DB_MUTE + DB_MUTE) * 2]; |
167 | |
168 | /* Liner to Log curve conversion table (for Attack rate). */ |
169 | static e_uint16 AR_ADJUST_TABLE[1 << EG_BITS]; |
170 | |
171 | /* Definition of envelope mode */ |
172 | enum |
173 | { SETTLE, ATTACK, DECAY, SUSHOLD, SUSTINE, RELEASE, FINISH }; |
174 | |
175 | /* Phase incr table for Attack */ |
176 | static e_uint32 dphaseARTable[16][16]; |
177 | /* Phase incr table for Decay and Release */ |
178 | static e_uint32 dphaseDRTable[16][16]; |
179 | |
180 | /* KSL + TL Table */ |
181 | static e_uint32 tllTable[16][8][1 << TL_BITS][4]; |
182 | static e_int32 rksTable[2][8][2]; |
183 | |
184 | /* Phase incr table for PG */ |
185 | static e_uint32 dphaseTable[512][8][16]; |
186 | |
187 | /*************************************************** |
188 | |
189 | Create tables |
190 | |
191 | ****************************************************/ |
192 | INLINE static e_int32 |
193 | Min (e_int32 i, e_int32 j) |
194 | { |
195 | if(i < j) |
196 | return i; |
197 | else |
198 | return j; |
199 | } |
200 | |
201 | /* Table for AR to LogCurve. */ |
202 | static void |
203 | makeAdjustTable (void) |
204 | { |
205 | e_int32 i; |
206 | |
207 | AR_ADJUST_TABLE[0] = (1 << EG_BITS); |
208 | for (i = 1; i < 128; i++) |
209 | AR_ADJUST_TABLE[i] = (e_uint16) ((double) (1 << EG_BITS) - 1 - (1 << EG_BITS) * log (i) / log (128)); |
210 | } |
211 | |
212 | |
213 | /* Table for dB(0 -- (1<<DB_BITS)-1) to Liner(0 -- DB2LIN_AMP_WIDTH) */ |
214 | static void |
215 | makeDB2LinTable (void) |
216 | { |
217 | e_int32 i; |
218 | |
219 | for (i = 0; i < DB_MUTE + DB_MUTE; i++) |
220 | { |
221 | DB2LIN_TABLE[i] = (e_int16) ((double) ((1 << DB2LIN_AMP_BITS) - 1) * pow (10, -(double) i * DB_STEP / 20)); |
222 | if(i >= DB_MUTE) DB2LIN_TABLE[i] = 0; |
223 | DB2LIN_TABLE[i + DB_MUTE + DB_MUTE] = (e_int16) (-DB2LIN_TABLE[i]); |
224 | } |
225 | } |
226 | |
227 | /* Liner(+0.0 - +1.0) to dB((1<<DB_BITS) - 1 -- 0) */ |
228 | static e_int32 |
229 | lin2db (double d) |
230 | { |
231 | if(d == 0) |
232 | return (DB_MUTE - 1); |
233 | else |
234 | return Min (-(e_int32) (20.0 * log10 (d) / DB_STEP), DB_MUTE-1); /* 0 -- 127 */ |
235 | } |
236 | |
237 | |
238 | /* Sin Table */ |
239 | static void |
240 | makeSinTable (void) |
241 | { |
242 | e_int32 i; |
243 | |
244 | for (i = 0; i < PG_WIDTH / 4; i++) |
245 | { |
246 | fullsintable[i] = (e_uint32) lin2db (sin (2.0 * PI * i / PG_WIDTH) ); |
247 | } |
248 | |
249 | for (i = 0; i < PG_WIDTH / 4; i++) |
250 | { |
251 | fullsintable[PG_WIDTH / 2 - 1 - i] = fullsintable[i]; |
252 | } |
253 | |
254 | for (i = 0; i < PG_WIDTH / 2; i++) |
255 | { |
256 | fullsintable[PG_WIDTH / 2 + i] = (e_uint32) (DB_MUTE + DB_MUTE + fullsintable[i]); |
257 | } |
258 | |
259 | for (i = 0; i < PG_WIDTH / 2; i++) |
260 | halfsintable[i] = fullsintable[i]; |
261 | for (i = PG_WIDTH / 2; i < PG_WIDTH; i++) |
262 | halfsintable[i] = fullsintable[0]; |
263 | } |
264 | |
265 | /* Table for Pitch Modulator */ |
266 | static void |
267 | makePmTable (void) |
268 | { |
269 | e_int32 i; |
270 | |
271 | for (i = 0; i < PM_PG_WIDTH; i++) |
272 | pmtable[i] = (e_int32) ((double) PM_AMP * pow (2, (double) PM_DEPTH * sin (2.0 * PI * i / PM_PG_WIDTH) / 1200)); |
273 | } |
274 | |
275 | /* Table for Amp Modulator */ |
276 | static void |
277 | makeAmTable (void) |
278 | { |
279 | e_int32 i; |
280 | |
281 | for (i = 0; i < AM_PG_WIDTH; i++) |
282 | amtable[i] = (e_int32) ((double) AM_DEPTH / 2 / DB_STEP * (1.0 + sin (2.0 * PI * i / PM_PG_WIDTH))); |
283 | } |
284 | |
285 | /* Phase increment counter table */ |
286 | static void |
287 | makeDphaseTable (void) |
288 | { |
289 | e_uint32 fnum, block, ML; |
290 | e_uint32 mltable[16] = |
291 | { 1, 1 * 2, 2 * 2, 3 * 2, 4 * 2, 5 * 2, 6 * 2, 7 * 2, 8 * 2, 9 * 2, 10 * 2, 10 * 2, 12 * 2, 12 * 2, 15 * 2, 15 * 2 }; |
292 | |
293 | for (fnum = 0; fnum < 512; fnum++) |
294 | for (block = 0; block < 8; block++) |
295 | for (ML = 0; ML < 16; ML++) |
296 | dphaseTable[fnum][block][ML] = rate_adjust (((fnum * mltable[ML]) << block) >> (20 - DP_BITS)); |
297 | } |
298 | |
299 | static void |
300 | makeTllTable (void) |
301 | { |
302 | #define dB2(x) ((x)*2) |
303 | |
304 | static double kltable[16] = { |
305 | dB2 (0.000), dB2 (9.000), dB2 (12.000), dB2 (13.875), dB2 (15.000), dB2 (16.125), dB2 (16.875), dB2 (17.625), |
306 | dB2 (18.000), dB2 (18.750), dB2 (19.125), dB2 (19.500), dB2 (19.875), dB2 (20.250), dB2 (20.625), dB2 (21.000) |
307 | }; |
308 | |
309 | e_int32 tmp; |
310 | e_int32 fnum, block, TL, KL; |
311 | |
312 | for (fnum = 0; fnum < 16; fnum++) |
313 | for (block = 0; block < 8; block++) |
314 | for (TL = 0; TL < 64; TL++) |
315 | for (KL = 0; KL < 4; KL++) |
316 | { |
317 | if(KL == 0) |
318 | { |
319 | tllTable[fnum][block][TL][KL] = TL2EG (TL); |
320 | } |
321 | else |
322 | { |
323 | tmp = (e_int32) (kltable[fnum] - dB2 (3.000) * (7 - block)); |
324 | if(tmp <= 0) |
325 | tllTable[fnum][block][TL][KL] = TL2EG (TL); |
326 | else |
327 | tllTable[fnum][block][TL][KL] = (e_uint32) ((tmp >> (3 - KL)) / EG_STEP) + TL2EG (TL); |
328 | } |
329 | } |
330 | } |
331 | |
332 | #ifdef USE_SPEC_ENV_SPEED |
333 | static double attacktime[16][4] = { |
334 | {0, 0, 0, 0}, |
335 | {1730.15, 1400.60, 1153.43, 988.66}, |
336 | {865.08, 700.30, 576.72, 494.33}, |
337 | {432.54, 350.15, 288.36, 247.16}, |
338 | {216.27, 175.07, 144.18, 123.58}, |
339 | {108.13, 87.54, 72.09, 61.79}, |
340 | {54.07, 43.77, 36.04, 30.90}, |
341 | {27.03, 21.88, 18.02, 15.45}, |
342 | {13.52, 10.94, 9.01, 7.72}, |
343 | {6.76, 5.47, 4.51, 3.86}, |
344 | {3.38, 2.74, 2.25, 1.93}, |
345 | {1.69, 1.37, 1.13, 0.97}, |
346 | {0.84, 0.70, 0.60, 0.54}, |
347 | {0.50, 0.42, 0.34, 0.30}, |
348 | {0.28, 0.22, 0.18, 0.14}, |
349 | {0.00, 0.00, 0.00, 0.00} |
350 | }; |
351 | |
352 | static double decaytime[16][4] = { |
353 | {0, 0, 0, 0}, |
354 | {20926.60, 16807.20, 14006.00, 12028.60}, |
355 | {10463.30, 8403.58, 7002.98, 6014.32}, |
356 | {5231.64, 4201.79, 3501.49, 3007.16}, |
357 | {2615.82, 2100.89, 1750.75, 1503.58}, |
358 | {1307.91, 1050.45, 875.37, 751.79}, |
359 | {653.95, 525.22, 437.69, 375.90}, |
360 | {326.98, 262.61, 218.84, 187.95}, |
361 | {163.49, 131.31, 109.42, 93.97}, |
362 | {81.74, 65.65, 54.71, 46.99}, |
363 | {40.87, 32.83, 27.36, 23.49}, |
364 | {20.44, 16.41, 13.68, 11.75}, |
365 | {10.22, 8.21, 6.84, 5.87}, |
366 | {5.11, 4.10, 3.42, 2.94}, |
367 | {2.55, 2.05, 1.71, 1.47}, |
368 | {1.27, 1.27, 1.27, 1.27} |
369 | }; |
370 | #endif |
371 | |
372 | /* Rate Table for Attack */ |
373 | static void |
374 | makeDphaseARTable (void) |
375 | { |
376 | e_int32 AR, Rks, RM, RL; |
377 | #ifdef USE_SPEC_ENV_SPEED |
378 | e_uint32 attacktable[16][4]; |
379 | |
380 | for (RM = 0; RM < 16; RM++) |
381 | for (RL = 0; RL < 4; RL++) |
382 | { |
383 | if(RM == 0) |
384 | attacktable[RM][RL] = 0; |
385 | else if(RM == 15) |
386 | attacktable[RM][RL] = EG_DP_WIDTH; |
387 | else |
388 | attacktable[RM][RL] = (e_uint32) ((double) (1 << EG_DP_BITS) / (attacktime[RM][RL] * 3579545 / 72000)); |
389 | |
390 | } |
391 | #endif |
392 | |
393 | for (AR = 0; AR < 16; AR++) |
394 | for (Rks = 0; Rks < 16; Rks++) |
395 | { |
396 | RM = AR + (Rks >> 2); |
397 | RL = Rks & 3; |
398 | if(RM > 15) |
399 | RM = 15; |
400 | switch (AR) |
401 | { |
402 | case 0: |
403 | dphaseARTable[AR][Rks] = 0; |
404 | break; |
405 | case 15: |
406 | dphaseARTable[AR][Rks] = 0;/*EG_DP_WIDTH;*/ |
407 | break; |
408 | default: |
409 | #ifdef USE_SPEC_ENV_SPEED |
410 | dphaseARTable[AR][Rks] = rate_adjust (attacktable[RM][RL]); |
411 | #else |
412 | dphaseARTable[AR][Rks] = rate_adjust ((3 * (RL + 4) << (RM + 1))); |
413 | #endif |
414 | break; |
415 | } |
416 | } |
417 | } |
418 | |
419 | /* Rate Table for Decay and Release */ |
420 | static void |
421 | makeDphaseDRTable (void) |
422 | { |
423 | e_int32 DR, Rks, RM, RL; |
424 | |
425 | #ifdef USE_SPEC_ENV_SPEED |
426 | e_uint32 decaytable[16][4]; |
427 | |
428 | for (RM = 0; RM < 16; RM++) |
429 | for (RL = 0; RL < 4; RL++) |
430 | if(RM == 0) |
431 | decaytable[RM][RL] = 0; |
432 | else |
433 | decaytable[RM][RL] = (e_uint32) ((double) (1 << EG_DP_BITS) / (decaytime[RM][RL] * 3579545 / 72000)); |
434 | #endif |
435 | |
436 | for (DR = 0; DR < 16; DR++) |
437 | for (Rks = 0; Rks < 16; Rks++) |
438 | { |
439 | RM = DR + (Rks >> 2); |
440 | RL = Rks & 3; |
441 | if(RM > 15) |
442 | RM = 15; |
443 | switch (DR) |
444 | { |
445 | case 0: |
446 | dphaseDRTable[DR][Rks] = 0; |
447 | break; |
448 | default: |
449 | #ifdef USE_SPEC_ENV_SPEED |
450 | dphaseDRTable[DR][Rks] = rate_adjust (decaytable[RM][RL]); |
451 | #else |
452 | dphaseDRTable[DR][Rks] = rate_adjust ((RL + 4) << (RM - 1)); |
453 | #endif |
454 | break; |
455 | } |
456 | } |
457 | } |
458 | |
459 | static void |
460 | makeRksTable (void) |
461 | { |
462 | |
463 | e_int32 fnum8, block, KR; |
464 | |
465 | for (fnum8 = 0; fnum8 < 2; fnum8++) |
466 | for (block = 0; block < 8; block++) |
467 | for (KR = 0; KR < 2; KR++) |
468 | { |
469 | if(KR != 0) |
470 | rksTable[fnum8][block][KR] = (block << 1) + fnum8; |
471 | else |
472 | rksTable[fnum8][block][KR] = block >> 1; |
473 | } |
474 | } |
475 | |
476 | /************************************************************ |
477 | |
478 | Calc Parameters |
479 | |
480 | ************************************************************/ |
481 | |
482 | INLINE static e_uint32 |
483 | calc_eg_dphase (OPLL_SLOT * slot) |
484 | { |
485 | |
486 | switch (slot->eg_mode) |
487 | { |
488 | case ATTACK: |
489 | return dphaseARTable[slot->patch.AR][slot->rks]; |
490 | |
491 | case DECAY: |
492 | return dphaseDRTable[slot->patch.DR][slot->rks]; |
493 | |
494 | case SUSHOLD: |
495 | return 0; |
496 | |
497 | case SUSTINE: |
498 | return dphaseDRTable[slot->patch.RR][slot->rks]; |
499 | |
500 | case RELEASE: |
501 | if(slot->sustine) |
502 | return dphaseDRTable[5][slot->rks]; |
503 | else if(slot->patch.EG) |
504 | return dphaseDRTable[slot->patch.RR][slot->rks]; |
505 | else |
506 | return dphaseDRTable[7][slot->rks]; |
507 | |
508 | case FINISH: |
509 | return 0; |
510 | |
511 | default: |
512 | return 0; |
513 | } |
514 | } |
515 | |
516 | /************************************************************* |
517 | |
518 | OPLL internal interfaces |
519 | |
520 | *************************************************************/ |
521 | |
522 | #define UPDATE_PG(S) (S)->dphase = dphaseTable[(S)->fnum][(S)->block][(S)->patch.ML] |
523 | #define UPDATE_TLL(S)\ |
524 | (((S)->type==0)?\ |
525 | ((S)->tll = tllTable[((S)->fnum)>>5][(S)->block][(S)->patch.TL][(S)->patch.KL]):\ |
526 | ((S)->tll = tllTable[((S)->fnum)>>5][(S)->block][(S)->volume][(S)->patch.KL])) |
527 | #define UPDATE_RKS(S) (S)->rks = rksTable[((S)->fnum)>>8][(S)->block][(S)->patch.KR] |
528 | #define UPDATE_WF(S) (S)->sintbl = waveform[(S)->patch.WF] |
529 | #define UPDATE_EG(S) (S)->eg_dphase = calc_eg_dphase(S) |
530 | #define UPDATE_ALL(S)\ |
531 | UPDATE_PG(S);\ |
532 | UPDATE_TLL(S);\ |
533 | UPDATE_RKS(S);\ |
534 | UPDATE_WF(S); \ |
535 | UPDATE_EG(S) /* EG should be updated last. */ |
536 | |
537 | |
538 | /* Slot key on */ |
539 | INLINE static void |
540 | slotOn (OPLL_SLOT * slot) |
541 | { |
542 | slot->eg_mode = ATTACK; |
543 | slot->eg_phase = 0; |
544 | slot->phase = 0; |
545 | } |
546 | |
547 | /* Slot key on without reseting the phase */ |
548 | INLINE static void |
549 | slotOn2 (OPLL_SLOT * slot) |
550 | { |
551 | slot->eg_mode = ATTACK; |
552 | slot->eg_phase = 0; |
553 | } |
554 | |
555 | /* Slot key off */ |
556 | INLINE static void |
557 | slotOff (OPLL_SLOT * slot) |
558 | { |
559 | if(slot->eg_mode == ATTACK) |
560 | slot->eg_phase = EXPAND_BITS (AR_ADJUST_TABLE[HIGHBITS (slot->eg_phase, EG_DP_BITS - EG_BITS)], EG_BITS, EG_DP_BITS); |
561 | slot->eg_mode = RELEASE; |
562 | } |
563 | |
564 | /* Channel key on */ |
565 | INLINE static void |
566 | keyOn (OPLL * opll, e_int32 i) |
567 | { |
568 | if(!opll->slot_on_flag[i * 2]) |
569 | slotOn (MOD(opll,i)); |
570 | if(!opll->slot_on_flag[i * 2 + 1]) |
571 | slotOn (CAR(opll,i)); |
572 | opll->key_status[i] = 1; |
573 | } |
574 | |
575 | /* Channel key off */ |
576 | INLINE static void |
577 | keyOff (OPLL * opll, e_int32 i) |
578 | { |
579 | if(opll->slot_on_flag[i * 2 + 1]) |
580 | slotOff (CAR(opll,i)); |
581 | opll->key_status[i] = 0; |
582 | } |
583 | |
584 | /* Set sustine parameter */ |
585 | INLINE static void |
586 | setSustine (OPLL * opll, e_int32 c, e_int32 sustine) |
587 | { |
588 | CAR(opll,c)->sustine = sustine; |
589 | if(MOD(opll,c)->type) |
590 | MOD(opll,c)->sustine = sustine; |
591 | } |
592 | |
593 | /* Volume : 6bit ( Volume register << 2 ) */ |
594 | INLINE static void |
595 | setVolume (OPLL * opll, e_int32 c, e_int32 volume) |
596 | { |
597 | CAR(opll,c)->volume = volume; |
598 | } |
599 | |
600 | INLINE static void |
601 | setSlotVolume (OPLL_SLOT * slot, e_int32 volume) |
602 | { |
603 | slot->volume = volume; |
604 | } |
605 | |
606 | /* Set F-Number ( fnum : 9bit ) */ |
607 | INLINE static void |
608 | setFnumber (OPLL * opll, e_int32 c, e_int32 fnum) |
609 | { |
610 | CAR(opll,c)->fnum = fnum; |
611 | MOD(opll,c)->fnum = fnum; |
612 | } |
613 | |
614 | /* Set Block data (block : 3bit ) */ |
615 | INLINE static void |
616 | setBlock (OPLL * opll, e_int32 c, e_int32 block) |
617 | { |
618 | CAR(opll,c)->block = block; |
619 | MOD(opll,c)->block = block; |
620 | } |
621 | |
622 | INLINE static void update_key_status (OPLL * opll) |
623 | { |
624 | int ch; |
625 | |
626 | for (ch = 0; ch < 6; ch++) |
627 | opll->slot_on_flag[ch * 2] = opll->slot_on_flag[ch * 2 + 1] = (opll->HiFreq[ch]) & 0x10; |
628 | } |
629 | |
630 | /*********************************************************** |
631 | |
632 | Initializing |
633 | |
634 | ***********************************************************/ |
635 | |
636 | static void |
637 | OPLL_SLOT_reset (OPLL_SLOT * slot, int type) |
638 | { |
639 | slot->type = type; |
640 | slot->sintbl = waveform[0]; |
641 | slot->phase = 0; |
642 | slot->dphase = 0; |
643 | slot->output[0] = 0; |
644 | slot->output[1] = 0; |
645 | slot->feedback = 0; |
646 | slot->eg_mode = SETTLE; |
647 | slot->eg_phase = EG_DP_WIDTH; |
648 | slot->eg_dphase = 0; |
649 | slot->rks = 0; |
650 | slot->tll = 0; |
651 | slot->sustine = 0; |
652 | slot->fnum = 0; |
653 | slot->block = 0; |
654 | slot->volume = 0; |
655 | slot->pgout = 0; |
656 | slot->egout = 0; |
657 | } |
658 | |
659 | static void |
660 | internal_refresh (void) |
661 | { |
662 | makeDphaseTable (); |
663 | makeDphaseARTable (); |
664 | makeDphaseDRTable (); |
665 | pm_dphase = (e_uint32) rate_adjust (PM_SPEED * PM_DP_WIDTH / (clk / 72)); |
666 | am_dphase = (e_uint32) rate_adjust (AM_SPEED * AM_DP_WIDTH / (clk / 72)); |
667 | } |
668 | |
669 | static void |
670 | maketables (e_uint32 c, e_uint32 r) |
671 | { |
672 | if(c != clk) |
673 | { |
674 | clk = c; |
675 | makePmTable (); |
676 | makeAmTable (); |
677 | makeDB2LinTable (); |
678 | makeAdjustTable (); |
679 | makeTllTable (); |
680 | makeRksTable (); |
681 | makeSinTable (); |
682 | //makeDefaultPatch (); |
683 | } |
684 | |
685 | if(r != rate) |
686 | { |
687 | rate = r; |
688 | internal_refresh (); |
689 | } |
690 | } |
691 | |
692 | OPLL *OPLL_new (e_uint32 clk, e_uint32 rate) |
693 | { |
694 | OPLL *opll; |
695 | |
696 | maketables (clk, rate); |
697 | |
698 | opll = (OPLL *) calloc (sizeof (OPLL), 1); |
699 | if(opll == NULL) |
700 | return NULL; |
701 | |
702 | opll->mask = 0; |
703 | |
704 | OPLL_reset (opll); |
705 | |
706 | return opll; |
707 | } |
708 | |
709 | |
710 | void |
711 | OPLL_delete (OPLL * opll) |
712 | { |
713 | free (opll); |
714 | } |
715 | |
716 | /* Reset whole of OPLL except patch datas. */ |
717 | void |
718 | OPLL_reset (OPLL * opll) |
719 | { |
720 | e_int32 i; |
721 | |
722 | if(!opll) |
723 | return; |
724 | |
725 | opll->adr = 0; |
726 | opll->out = 0; |
727 | |
728 | opll->pm_phase = 0; |
729 | opll->am_phase = 0; |
730 | |
731 | opll->mask = 0; |
732 | |
733 | for (i = 0; i < 12; i++) |
734 | OPLL_SLOT_reset(&opll->slot[i], i%2); |
735 | |
736 | for (i = 0; i < 6; i++) |
737 | { |
738 | opll->key_status[i] = 0; |
739 | //setPatch (opll, i, 0); |
740 | } |
741 | |
742 | for (i = 0; i < 0x40; i++) |
743 | OPLL_writeReg (opll, i, 0); |
744 | |
745 | #ifndef EMU2413_COMPACTION |
746 | opll->realstep = (e_uint32) ((1 << 31) / rate); |
747 | opll->opllstep = (e_uint32) ((1 << 31) / (clk / 72)); |
748 | opll->oplltime = 0; |
749 | #endif |
750 | } |
751 | |
752 | /* Force Refresh (When external program changes some parameters). */ |
753 | void |
754 | OPLL_forceRefresh (OPLL * opll) |
755 | { |
756 | e_int32 i; |
757 | |
758 | if(opll == NULL) |
759 | return; |
760 | |
761 | for (i = 0; i < 12; i++) |
762 | { |
763 | UPDATE_PG (&opll->slot[i]); |
764 | UPDATE_RKS (&opll->slot[i]); |
765 | UPDATE_TLL (&opll->slot[i]); |
766 | UPDATE_WF (&opll->slot[i]); |
767 | UPDATE_EG (&opll->slot[i]); |
768 | } |
769 | } |
770 | |
771 | void |
772 | OPLL_set_rate (OPLL * opll, e_uint32 r) |
773 | { |
774 | if(opll->quality) |
775 | rate = 49716; |
776 | else |
777 | rate = r; |
778 | internal_refresh (); |
779 | rate = r; |
780 | } |
781 | |
782 | void |
783 | OPLL_set_quality (OPLL * opll, e_uint32 q) |
784 | { |
785 | opll->quality = q; |
786 | OPLL_set_rate (opll, rate); |
787 | } |
788 | |
789 | /********************************************************* |
790 | |
791 | Generate wave data |
792 | |
793 | *********************************************************/ |
794 | /* Convert Amp(0 to EG_HEIGHT) to Phase(0 to 2PI). */ |
795 | #if( SLOT_AMP_BITS - PG_BITS ) > 0 |
796 | #define wave2_2pi(e) ( (e) >> ( SLOT_AMP_BITS - PG_BITS )) |
797 | #else |
798 | #define wave2_2pi(e) ( (e) << ( PG_BITS - SLOT_AMP_BITS )) |
799 | #endif |
800 | |
801 | /* Convert Amp(0 to EG_HEIGHT) to Phase(0 to 4PI). */ |
802 | #if( SLOT_AMP_BITS - PG_BITS - 1 ) == 0 |
803 | #define wave2_4pi(e) (e) |
804 | #elif( SLOT_AMP_BITS - PG_BITS - 1 ) > 0 |
805 | #define wave2_4pi(e) ( (e) >> ( SLOT_AMP_BITS - PG_BITS - 1 )) |
806 | #else |
807 | #define wave2_4pi(e) ( (e) << ( 1 + PG_BITS - SLOT_AMP_BITS )) |
808 | #endif |
809 | |
810 | /* Convert Amp(0 to EG_HEIGHT) to Phase(0 to 8PI). */ |
811 | #if( SLOT_AMP_BITS - PG_BITS - 2 ) == 0 |
812 | #define wave2_8pi(e) (e) |
813 | #elif( SLOT_AMP_BITS - PG_BITS - 2 ) > 0 |
814 | #define wave2_8pi(e) ( (e) >> ( SLOT_AMP_BITS - PG_BITS - 2 )) |
815 | #else |
816 | #define wave2_8pi(e) ( (e) << ( 2 + PG_BITS - SLOT_AMP_BITS )) |
817 | #endif |
818 | |
819 | |
820 | |
821 | /* Update AM, PM unit */ |
822 | static void |
823 | update_ampm (OPLL * opll) |
824 | { |
825 | opll->pm_phase = (opll->pm_phase + pm_dphase) & (PM_DP_WIDTH - 1); |
826 | opll->am_phase = (opll->am_phase + am_dphase) & (AM_DP_WIDTH - 1); |
827 | opll->lfo_am = amtable[HIGHBITS (opll->am_phase, AM_DP_BITS - AM_PG_BITS)]; |
828 | opll->lfo_pm = pmtable[HIGHBITS (opll->pm_phase, PM_DP_BITS - PM_PG_BITS)]; |
829 | } |
830 | |
831 | /* PG */ |
832 | INLINE static void |
833 | calc_phase (OPLL_SLOT * slot, e_int32 lfo) |
834 | { |
835 | if(slot->patch.PM) |
836 | slot->phase += (slot->dphase * lfo) >> PM_AMP_BITS; |
837 | else |
838 | slot->phase += slot->dphase; |
839 | |
840 | slot->phase &= (DP_WIDTH - 1); |
841 | |
842 | slot->pgout = HIGHBITS (slot->phase, DP_BASE_BITS); |
843 | } |
844 | |
845 | /* EG */ |
846 | static void |
847 | calc_envelope (OPLL_SLOT * slot, e_int32 lfo) |
848 | { |
849 | #define S2E(x) (SL2EG((e_int32)(x/SL_STEP))<<(EG_DP_BITS-EG_BITS)) |
850 | |
851 | static e_uint32 SL[16] = { |
852 | S2E (0.0), S2E (3.0), S2E (6.0), S2E (9.0), S2E (12.0), S2E (15.0), S2E (18.0), S2E (21.0), |
853 | S2E (24.0), S2E (27.0), S2E (30.0), S2E (33.0), S2E (36.0), S2E (39.0), S2E (42.0), S2E (48.0) |
854 | }; |
855 | |
856 | e_uint32 egout; |
857 | |
858 | switch (slot->eg_mode) |
859 | { |
860 | |
861 | case ATTACK: |
862 | egout = AR_ADJUST_TABLE[HIGHBITS (slot->eg_phase, EG_DP_BITS - EG_BITS)]; |
863 | slot->eg_phase += slot->eg_dphase; |
864 | if((EG_DP_WIDTH & slot->eg_phase)||(slot->patch.AR==15)) |
865 | { |
866 | egout = 0; |
867 | slot->eg_phase = 0; |
868 | slot->eg_mode = DECAY; |
869 | UPDATE_EG (slot); |
870 | } |
871 | break; |
872 | |
873 | case DECAY: |
874 | egout = HIGHBITS (slot->eg_phase, EG_DP_BITS - EG_BITS); |
875 | slot->eg_phase += slot->eg_dphase; |
876 | if(slot->eg_phase >= SL[slot->patch.SL]) |
877 | { |
878 | if(slot->patch.EG) |
879 | { |
880 | slot->eg_phase = SL[slot->patch.SL]; |
881 | slot->eg_mode = SUSHOLD; |
882 | UPDATE_EG (slot); |
883 | } |
884 | else |
885 | { |
886 | slot->eg_phase = SL[slot->patch.SL]; |
887 | slot->eg_mode = SUSTINE; |
888 | UPDATE_EG (slot); |
889 | } |
890 | } |
891 | break; |
892 | |
893 | case SUSHOLD: |
894 | egout = HIGHBITS (slot->eg_phase, EG_DP_BITS - EG_BITS); |
895 | if(slot->patch.EG == 0) |
896 | { |
897 | slot->eg_mode = SUSTINE; |
898 | UPDATE_EG (slot); |
899 | } |
900 | break; |
901 | |
902 | case SUSTINE: |
903 | case RELEASE: |
904 | egout = HIGHBITS (slot->eg_phase, EG_DP_BITS - EG_BITS); |
905 | slot->eg_phase += slot->eg_dphase; |
906 | if(egout >= (1 << EG_BITS)) |
907 | { |
908 | slot->eg_mode = FINISH; |
909 | egout = (1 << EG_BITS) - 1; |
910 | } |
911 | break; |
912 | |
913 | case FINISH: |
914 | egout = (1 << EG_BITS) - 1; |
915 | break; |
916 | |
917 | default: |
918 | egout = (1 << EG_BITS) - 1; |
919 | break; |
920 | } |
921 | |
922 | if(slot->patch.AM) |
923 | egout = EG2DB (egout + slot->tll) + lfo; |
924 | else |
925 | egout = EG2DB (egout + slot->tll); |
926 | |
927 | if(egout >= DB_MUTE) |
928 | egout = DB_MUTE - 1; |
929 | |
930 | slot->egout = egout; |
931 | } |
932 | |
933 | /* CARRIOR */ |
934 | INLINE static e_int32 |
935 | calc_slot_car (OPLL_SLOT * slot, e_int32 fm) |
936 | { |
937 | slot->output[1] = slot->output[0]; |
938 | |
939 | if(slot->egout >= (DB_MUTE - 1)) |
940 | { |
941 | slot->output[0] = 0; |
942 | } |
943 | else |
944 | { |
945 | slot->output[0] = DB2LIN_TABLE[slot->sintbl[(slot->pgout+wave2_8pi(fm))&(PG_WIDTH-1)] + slot->egout]; |
946 | } |
947 | |
948 | return (slot->output[1] + slot->output[0]) >> 1; |
949 | } |
950 | |
951 | /* MODULATOR */ |
952 | INLINE static e_int32 |
953 | calc_slot_mod (OPLL_SLOT * slot) |
954 | { |
955 | e_int32 fm; |
956 | |
957 | slot->output[1] = slot->output[0]; |
958 | |
959 | if(slot->egout >= (DB_MUTE - 1)) |
960 | { |
961 | slot->output[0] = 0; |
962 | } |
963 | else if(slot->patch.FB != 0) |
964 | { |
965 | fm = wave2_4pi (slot->feedback) >> (7 - slot->patch.FB); |
966 | slot->output[0] = DB2LIN_TABLE[slot->sintbl[(slot->pgout + fm)&(PG_WIDTH-1)] + slot->egout]; |
967 | } |
968 | else |
969 | { |
970 | slot->output[0] = DB2LIN_TABLE[slot->sintbl[slot->pgout] + slot->egout]; |
971 | } |
972 | |
973 | slot->feedback = (slot->output[1] + slot->output[0]) >> 1; |
974 | |
975 | return slot->feedback; |
976 | |
977 | } |
978 | |
979 | static INLINE e_int16 calc (OPLL * opll) |
980 | { |
981 | e_int32 inst = 0, out = 0; |
982 | e_int32 i; |
983 | |
984 | update_ampm (opll); |
985 | |
986 | for (i = 0; i < 12; i++) |
987 | { |
988 | calc_phase(&opll->slot[i],opll->lfo_pm); |
989 | calc_envelope(&opll->slot[i],opll->lfo_am); |
990 | } |
991 | |
992 | for (i = 0; i < 6; i++) |
993 | if(!(opll->mask & OPLL_MASK_CH (i)) && (CAR(opll,i)->eg_mode != FINISH)) |
994 | inst += calc_slot_car (CAR(opll,i), calc_slot_mod(MOD(opll,i))); |
995 | |
996 | out = inst; |
997 | return (e_int16) out; |
998 | } |
999 | |
1000 | void moocow(OPLL* opll, e_int32 *buf, e_int32 len, int shift) |
1001 | { |
1002 | while(len > 0) |
1003 | { |
1004 | *buf+=(calc(opll)+32768)<<shift; |
1005 | buf++; |
1006 | len--; |
1007 | } |
1008 | } |
1009 | |
1010 | #ifdef EMU2413_COMPACTION |
1011 | e_int16 |
1012 | OPLL_calc (OPLL * opll) |
1013 | { |
1014 | return calc (opll); |
1015 | } |
1016 | #else |
1017 | e_int16 |
1018 | OPLL_calc (OPLL * opll) |
1019 | { |
1020 | if(!opll->quality) |
1021 | return calc (opll); |
1022 | |
1023 | while (opll->realstep > opll->oplltime) |
1024 | { |
1025 | opll->oplltime += opll->opllstep; |
1026 | opll->prev = opll->next; |
1027 | opll->next = calc (opll); |
1028 | } |
1029 | |
1030 | opll->oplltime -= opll->realstep; |
1031 | opll->out = (e_int16) (((double) opll->next * (opll->opllstep - opll->oplltime) |
1032 | + (double) opll->prev * opll->oplltime) / opll->opllstep); |
1033 | |
1034 | return (e_int16) opll->out; |
1035 | } |
1036 | #endif |
1037 | |
1038 | e_uint32 |
1039 | OPLL_setMask (OPLL * opll, e_uint32 mask) |
1040 | { |
1041 | e_uint32 ret; |
1042 | |
1043 | if(opll) |
1044 | { |
1045 | ret = opll->mask; |
1046 | opll->mask = mask; |
1047 | return ret; |
1048 | } |
1049 | else |
1050 | return 0; |
1051 | } |
1052 | |
1053 | e_uint32 |
1054 | OPLL_toggleMask (OPLL * opll, e_uint32 mask) |
1055 | { |
1056 | e_uint32 ret; |
1057 | |
1058 | if(opll) |
1059 | { |
1060 | ret = opll->mask; |
1061 | opll->mask ^= mask; |
1062 | return ret; |
1063 | } |
1064 | else |
1065 | return 0; |
1066 | } |
1067 | |
1068 | /**************************************************** |
1069 | |
1070 | I/O Ctrl |
1071 | |
1072 | *****************************************************/ |
1073 | |
1074 | static void setInstrument(OPLL * opll, e_uint i, e_uint inst) |
1075 | { |
1076 | const e_uint8 *src; |
1077 | OPLL_PATCH *modp, *carp; |
1078 | |
1079 | opll->patch_number[i]=inst; |
1080 | |
1081 | if(inst) |
1082 | src=default_inst[inst-1]; |
1083 | else |
1084 | src=opll->CustInst; |
1085 | |
1086 | modp=&MOD(opll,i)->patch; |
1087 | carp=&CAR(opll,i)->patch; |
1088 | |
1089 | modp->AM=(src[0]>>7)&1; |
1090 | modp->PM=(src[0]>>6)&1; |
1091 | modp->EG=(src[0]>>5)&1; |
1092 | modp->KR=(src[0]>>4)&1; |
1093 | modp->ML=(src[0]&0xF); |
1094 | |
1095 | carp->AM=(src[1]>>7)&1; |
1096 | carp->PM=(src[1]>>6)&1; |
1097 | carp->EG=(src[1]>>5)&1; |
1098 | carp->KR=(src[1]>>4)&1; |
1099 | carp->ML=(src[1]&0xF); |
1100 | |
1101 | modp->KL=(src[2]>>6)&3; |
1102 | modp->TL=(src[2]&0x3F); |
1103 | |
1104 | carp->KL = (src[3] >> 6) & 3; |
1105 | carp->WF = (src[3] >> 4) & 1; |
1106 | |
1107 | modp->WF = (src[3] >> 3) & 1; |
1108 | |
1109 | modp->FB = (src[3]) & 7; |
1110 | |
1111 | modp->AR = (src[4]>>4)&0xF; |
1112 | modp->DR = (src[4]&0xF); |
1113 | |
1114 | carp->AR = (src[5]>>4)&0xF; |
1115 | carp->DR = (src[5]&0xF); |
1116 | |
1117 | modp->SL = (src[6]>>4)&0xF; |
1118 | modp->RR = (src[6]&0xF); |
1119 | |
1120 | carp->SL = (src[7]>>4)&0xF; |
1121 | carp->RR = (src[7]&0xF); |
1122 | } |
1123 | |
1124 | |
1125 | void |
1126 | OPLL_writeReg (OPLL * opll, e_uint32 reg, e_uint32 data) |
1127 | { |
1128 | |
1129 | e_int32 i, v, ch; |
1130 | |
1131 | data = data & 0xff; |
1132 | reg = reg & 0x3f; |
1133 | |
1134 | switch (reg) |
1135 | { |
1136 | case 0x00: |
1137 | opll->CustInst[0]=data; |
1138 | for (i = 0; i < 6; i++) |
1139 | { |
1140 | if(opll->patch_number[i] == 0) |
1141 | { |
1142 | setInstrument(opll, i, 0); |
1143 | UPDATE_PG (MOD(opll,i)); |
1144 | UPDATE_RKS (MOD(opll,i)); |
1145 | UPDATE_EG (MOD(opll,i)); |
1146 | } |
1147 | } |
1148 | break; |
1149 | |
1150 | case 0x01: |
1151 | opll->CustInst[1]=data; |
1152 | for (i = 0; i < 6; i++) |
1153 | { |
1154 | if(opll->patch_number[i] == 0) |
1155 | { |
1156 | setInstrument(opll, i, 0); |
1157 | UPDATE_PG (CAR(opll,i)); |
1158 | UPDATE_RKS (CAR(opll,i)); |
1159 | UPDATE_EG (CAR(opll,i)); |
1160 | } |
1161 | } |
1162 | break; |
1163 | |
1164 | case 0x02: |
1165 | opll->CustInst[2]=data; |
1166 | for (i = 0; i < 6; i++) |
1167 | { |
1168 | if(opll->patch_number[i] == 0) |
1169 | { |
1170 | setInstrument(opll, i, 0); |
1171 | UPDATE_TLL(MOD(opll,i)); |
1172 | } |
1173 | } |
1174 | break; |
1175 | |
1176 | case 0x03: |
1177 | opll->CustInst[3]=data; |
1178 | for (i = 0; i < 6; i++) |
1179 | { |
1180 | if(opll->patch_number[i] == 0) |
1181 | { |
1182 | setInstrument(opll, i, 0); |
1183 | UPDATE_WF(MOD(opll,i)); |
1184 | UPDATE_WF(CAR(opll,i)); |
1185 | } |
1186 | } |
1187 | break; |
1188 | |
1189 | case 0x04: |
1190 | opll->CustInst[4]=data; |
1191 | for (i = 0; i < 6; i++) |
1192 | { |
1193 | if(opll->patch_number[i] == 0) |
1194 | { |
1195 | setInstrument(opll, i, 0); |
1196 | UPDATE_EG (MOD(opll,i)); |
1197 | } |
1198 | } |
1199 | break; |
1200 | |
1201 | case 0x05: |
1202 | opll->CustInst[5]=data; |
1203 | for (i = 0; i < 6; i++) |
1204 | { |
1205 | if(opll->patch_number[i] == 0) |
1206 | { |
1207 | setInstrument(opll, i, 0); |
1208 | UPDATE_EG(CAR(opll,i)); |
1209 | } |
1210 | } |
1211 | break; |
1212 | |
1213 | case 0x06: |
1214 | opll->CustInst[6]=data; |
1215 | for (i = 0; i < 6; i++) |
1216 | { |
1217 | if(opll->patch_number[i] == 0) |
1218 | { |
1219 | setInstrument(opll, i, 0); |
1220 | UPDATE_EG (MOD(opll,i)); |
1221 | } |
1222 | } |
1223 | break; |
1224 | |
1225 | case 0x07: |
1226 | opll->CustInst[7]=data; |
1227 | for (i = 0; i < 6; i++) |
1228 | { |
1229 | if(opll->patch_number[i] == 0) |
1230 | { |
1231 | setInstrument(opll, i, 0); |
1232 | UPDATE_EG (CAR(opll,i)); |
1233 | } |
1234 | } |
1235 | break; |
1236 | |
1237 | case 0x10: |
1238 | case 0x11: |
1239 | case 0x12: |
1240 | case 0x13: |
1241 | case 0x14: |
1242 | case 0x15: |
1243 | ch = reg - 0x10; |
1244 | opll->LowFreq[ch]=data; |
1245 | setFnumber (opll, ch, data + ((opll->HiFreq[ch] & 1) << 8)); |
1246 | UPDATE_ALL (MOD(opll,ch)); |
1247 | UPDATE_ALL (CAR(opll,ch)); |
1248 | break; |
1249 | |
1250 | case 0x20: |
1251 | case 0x21: |
1252 | case 0x22: |
1253 | case 0x23: |
1254 | case 0x24: |
1255 | case 0x25: |
1256 | ch = reg - 0x20; |
1257 | opll->HiFreq[ch]=data; |
1258 | |
1259 | setFnumber (opll, ch, ((data & 1) << 8) + opll->LowFreq[ch]); |
1260 | setBlock (opll, ch, (data >> 1) & 7); |
1261 | setSustine (opll, ch, (data >> 5) & 1); |
1262 | if(data & 0x10) |
1263 | keyOn (opll, ch); |
1264 | else |
1265 | keyOff (opll, ch); |
1266 | UPDATE_ALL (MOD(opll,ch)); |
1267 | UPDATE_ALL (CAR(opll,ch)); |
1268 | update_key_status (opll); |
1269 | break; |
1270 | |
1271 | case 0x30: |
1272 | case 0x31: |
1273 | case 0x32: |
1274 | case 0x33: |
1275 | case 0x34: |
1276 | case 0x35: |
1277 | opll->InstVol[reg-0x30]=data; |
1278 | i = (data >> 4) & 15; |
1279 | v = data & 15; |
1280 | setInstrument(opll, reg-0x30, i); |
1281 | setVolume (opll, reg - 0x30, v << 2); |
1282 | UPDATE_ALL (MOD(opll,reg - 0x30)); |
1283 | UPDATE_ALL (CAR(opll,reg - 0x30)); |
1284 | break; |
1285 | |
1286 | default: |
1287 | break; |
1288 | |
1289 | } |
1290 | } |
1291 | |
1292 | void |
1293 | OPLL_writeIO (OPLL * opll, e_uint32 adr, e_uint32 val) |
1294 | { |
1295 | if(adr & 1) |
1296 | OPLL_writeReg (opll, opll->adr, val); |
1297 | else |
1298 | opll->adr = val; |
1299 | } |
1300 | |