-
Notifications
You must be signed in to change notification settings - Fork 2k
/
vlm5030.cpp
653 lines (574 loc) · 17.3 KB
/
vlm5030.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
// license:BSD-3-Clause
// copyright-holders:Tatsuyuki Satoh
/*
vlm5030.cpp
Sanyo VLM5030 emulator
Written by Tatsuyuki Satoh
Based on TMS5220 simulator (tms5220.cpp)
+-------,_,-------+
GND -- | 1 40 | <- RST
(gnd) TST1 -> | 2 39 | ?? TST4
OSC2 ck | 3 _ 38 | ?? TST3
OSC1 ck | 4 (_) 37 | ?? TST2
D0 -> | 5 36 | -> DAO
D1 -> | 6 35 | -- VREF (+5v through 5.6k resistor)
D2 -> | 7 34 | -> MTE
D3 -> | 8 V 33 | -> /ME
D4 -> | 9 L 32 | <- VCU
D5 -> | 10 M 31 | <- START
D6 -> | 11 5 30 | -> BSY
D7 -> | 12 0 29 | -- Vdd (+5v)
A0 <- | 13 3 28 | -> A15
A1 <- | 14 0 27 | -> A14
A2 <- | 15 26 | -> A13
A3 <- | 16 _ 25 | -> A12
A4 <- | 17 (_) 24 | -> A11
A5 <- | 18 23 | -> A10
A6 <- | 19 22 | -> A9
A7 <- | 20 21 | -> A8
+-----------------+
TST1 is probably a test mode enable pin, must be grounded for normal operation.
TST2-4 are some sort of test pins but can be left floating?
VREF is probably the 0v ref for the output dac
DAO is the output dac
/ME is connected to the voice data rom /OE enable
START strobes in a byte of data over the data bus from host cpu
OSC1/2 are to both ends of a 3.579545MHz xtal with a 100pf cap from each end to gnd
VCU makes the data bus select the upper 8 bits of the word register internally instead of the lower 8 bits. it is only useful if you need more than 256 phrases in rom? (recheck this)
MTE is an output for roms which need to be clocked to latch address before use, or for a latch sitting in front of the voice rom address lines? (recheck this)
RST not only resets the chip on its rising edge but grabs a byte of mode state data from the data bus on its falling edge? (recheck this)
note:
memory read cycle(==sampling rate) = 122.9u(440clock)
interpolator (LC8109 = 2.5ms) = 20 * samples(125us)
frame time (20ms) = 4 * interpolator
9bit DAC is composed of 5bit Physical and 3bitPWM.
todo:
Noise Generator circuit without 'machine().rand()' function.
----------- command format (Analytical result) ----------
1)end of speech (8bit)
:00000011:
2)silent some frame (8bit)
:????SS01:
SS : number of silent frames
00 = 2 frame
01 = 4 frame
10 = 6 frame
11 = 8 frame
3)-speech frame (48bit)
function: 6th : 5th : 4th : 3rd : 2nd : 1st :
end : --- : --- : --- : --- : --- :00000011:
silent : --- : --- : --- : --- : --- :0000SS01:
speech :11111122:22233334:44455566:67778889:99AAAEEE:EEPPPPP0:
EEEEE : energy : volume 0=off,0x1f=max
PPPPP : pitch : 0=noize , 1=fast,0x1f=slow
111111 : K1 : 48=off
22222 : K2 : 0=off,1=+min,0x0f=+max,0x10=off,0x11=+max,0x1f=-min
: 16 == special function??
3333 : K3 : 0=off,1=+min,0x07=+max,0x08=-max,0x0f=-min
4444 : K4 :
555 : K5 : 0=off,1=+min,0x03=+max,0x04=-max,0x07=-min
666 : K6 :
777 : K7 :
888 : K8 :
999 : K9 :
AAA : K10 :
---------- chirp table information ----------
DAC PWM cycle == 88system clock , (11clock x 8 pattern) = 40.6KHz
one chirp == 5 x PWM cycle == 440systemclock(8,136Hz)
chirp 0 : volume 10- 8 : with filter
chirp 1 : volume 8- 6 : with filter
chirp 2 : volume 6- 4 : with filter
chirp 3 : volume 4 : no filter ??
chirp 4- 5: volume 4- 2 : with filter
chirp 6-11: volume 2- 0 : with filter
chirp 12-..: vokume 0 : silent
---------- digital output information ----------
when ME pin = high , some status output to A0..15 pins
A0..8 : DAC output value (abs)
A9 : DAC sign flag , L=minus,H=Plus
A10 : energy reload flag (pitch pulse)
A11..15 : unknown
[DAC output value(signed 6bit)] = A9 ? A0..8 : -(A0..8)
*/
#include "emu.h"
#include "vlm5030.h"
/* interpolator per frame */
#define FR_SIZE 4
/* samples per interpolator */
#define IP_SIZE_SLOWER (240/FR_SIZE)
#define IP_SIZE_SLOW (200/FR_SIZE)
#define IP_SIZE_NORMAL (160/FR_SIZE)
#define IP_SIZE_FAST (120/FR_SIZE)
#define IP_SIZE_FASTER ( 80/FR_SIZE)
/* phase value */
enum {
PH_RESET,
PH_IDLE,
PH_SETUP,
PH_WAIT,
PH_RUN,
PH_STOP,
PH_END
};
/* Pull in the ROM tables */
#include "tms5110r.hxx"
/*
speed parameter
SPC SPB SPA
1 0 1 more slow (05h) : 42ms (150%) : 60sample
1 1 x slow (06h,07h) : 34ms (125%) : 50sample
x 0 0 normal (00h,04h) : 25.6ms (100%) : 40samplme
0 0 1 fast (01h) : 20.2ms (75%) : 30sample
0 1 x more fast (02h,03h) : 12.2ms (50%) : 20sample
*/
static const int vlm5030_speed_table[8] =
{
IP_SIZE_NORMAL,
IP_SIZE_FAST,
IP_SIZE_FASTER,
IP_SIZE_FASTER,
IP_SIZE_NORMAL,
IP_SIZE_SLOWER,
IP_SIZE_SLOW,
IP_SIZE_SLOW
};
DEFINE_DEVICE_TYPE(VLM5030, vlm5030_device, "vlm5030", "Sanyo VLM5030")
vlm5030_device::vlm5030_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) :
device_t(mconfig, VLM5030, tag, owner, clock),
device_sound_interface(mconfig, *this),
device_rom_interface(mconfig, *this),
m_channel(nullptr),
m_coeff(nullptr),
m_address(0),
m_pin_BSY(0),
m_pin_ST(0),
m_pin_VCU(0),
m_pin_RST(0),
m_latch_data(0),
m_vcu_addr_h(0),
m_parameter(0),
m_phase(PH_RESET),
m_frame_size(0),
m_pitch_offset(0),
m_interp_step(0),
m_interp_count(0),
m_sample_count(0),
m_pitch_count(0),
m_old_energy(0),
m_old_pitch(0),
m_target_energy(0),
m_target_pitch(0),
m_new_energy(0),
m_new_pitch(0),
m_current_energy(0),
m_current_pitch(0)
{
memset(m_old_k, 0, sizeof(m_old_k));
memset(m_new_k, 0, sizeof(m_new_k));
memset(m_current_k, 0, sizeof(m_current_k));
memset(m_target_k, 0, sizeof(m_target_k));
memset(m_x, 0, sizeof(m_x));
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
/* start VLM5030 with sound rom */
/* speech_rom == 0 -> use sampling data mode */
void vlm5030_device::device_start()
{
m_coeff = &vlm5030_coeff;
/* reset input pins */
m_pin_RST = m_pin_ST = m_pin_VCU = 0;
m_latch_data = 0;
device_reset();
m_phase = PH_IDLE;
m_channel = stream_alloc(0, 1, clock() / 440);
save_item(NAME(m_address));
save_item(NAME(m_pin_BSY));
save_item(NAME(m_pin_ST));
save_item(NAME(m_pin_VCU));
save_item(NAME(m_pin_RST));
save_item(NAME(m_latch_data));
save_item(NAME(m_vcu_addr_h));
save_item(NAME(m_parameter));
save_item(NAME(m_phase));
save_item(NAME(m_interp_count));
save_item(NAME(m_sample_count));
save_item(NAME(m_pitch_count));
save_item(NAME(m_old_energy));
save_item(NAME(m_old_pitch));
save_item(NAME(m_old_k));
save_item(NAME(m_target_energy));
save_item(NAME(m_target_pitch));
save_item(NAME(m_target_k));
save_item(NAME(m_x));
}
//-------------------------------------------------
// device_reset - device-specific reset
//-------------------------------------------------
void vlm5030_device::device_reset()
{
m_phase = PH_RESET;
m_address = 0;
m_vcu_addr_h = 0;
m_pin_BSY = 0;
m_old_energy = m_old_pitch = 0;
m_new_energy = m_new_pitch = 0;
m_current_energy = m_current_pitch = 0;
m_target_energy = m_target_pitch = 0;
memset(m_old_k, 0, sizeof(m_old_k));
memset(m_new_k, 0, sizeof(m_new_k));
memset(m_current_k, 0, sizeof(m_current_k));
memset(m_target_k, 0, sizeof(m_target_k));
m_interp_count = m_sample_count = m_pitch_count = 0;
memset(m_x, 0, sizeof(m_x));
/* reset parameters */
setup_parameter(0x00);
}
void vlm5030_device::device_post_load()
{
restore_state();
}
void vlm5030_device::rom_bank_pre_change()
{
m_channel->update();
}
int vlm5030_device::get_bits(int sbit,int bits)
{
int offset = m_address + (sbit>>3);
int data;
data = read_byte(offset) | (read_byte(offset+1)<<8);
data >>= (sbit&7);
data &= (0xff>>(8-bits));
return data;
}
/* get next frame */
int vlm5030_device::parse_frame()
{
/* remember previous frame */
m_old_energy = m_new_energy;
m_old_pitch = m_new_pitch;
for (int i = 0; i <= 9; i++)
m_old_k[i] = m_new_k[i];
/* command byte check */
uint8_t cmd = read_byte(m_address);
if (cmd & 0x01)
{
/* extend frame */
m_new_energy = m_new_pitch = 0;
for (int i = 0; i <= 9; i++)
m_new_k[i] = 0;
m_address++;
if (cmd & 0x02)
{
/* end of speech */
/* logerror("VLM5030 %04X end \n", m_address); */
return 0;
}
else
{
/* silent frame */
int nums = ((cmd >> 2) + 1) * 2;
/* logerror("VLM5030 %04X silent %d frame\n", m_address, nums); */
return nums * FR_SIZE;
}
}
/* pitch */
m_new_pitch = m_coeff->pitchtable[get_bits(1,m_coeff->pitch_bits)];
if (m_new_pitch > 0)
m_new_pitch += m_pitch_offset;
/* energy */
m_new_energy = m_coeff->energytable[get_bits(6,m_coeff->energy_bits)];
/* 10 K's */
m_new_k[9] = m_coeff->ktable[9][get_bits(11,m_coeff->kbits[9])];
m_new_k[8] = m_coeff->ktable[8][get_bits(14,m_coeff->kbits[8])];
m_new_k[7] = m_coeff->ktable[7][get_bits(17,m_coeff->kbits[7])];
m_new_k[6] = m_coeff->ktable[6][get_bits(20,m_coeff->kbits[6])];
m_new_k[5] = m_coeff->ktable[5][get_bits(23,m_coeff->kbits[5])];
m_new_k[4] = m_coeff->ktable[4][get_bits(26,m_coeff->kbits[4])];
m_new_k[3] = m_coeff->ktable[3][get_bits(29,m_coeff->kbits[3])];
m_new_k[2] = m_coeff->ktable[2][get_bits(33,m_coeff->kbits[2])];
m_new_k[1] = m_coeff->ktable[1][get_bits(37,m_coeff->kbits[1])];
m_new_k[0] = m_coeff->ktable[0][get_bits(42,m_coeff->kbits[0])];
m_address += 6;
logerror("VLM5030 %04X voice \n", m_address);
//fprintf(stderr,"*** target Energy, Pitch, and Ks = %04d, %04d, %04d, %04d, %04d, %04d, %04d, %04d, %04d, %04d, %04d, %04d\n",m_new_energy, m_new_pitch, m_new_k[0], m_new_k[1], m_new_k[2], m_new_k[3], m_new_k[4], m_new_k[5], m_new_k[6], m_new_k[7], m_new_k[8], m_new_k[9]);
return FR_SIZE;
}
/* realtime update */
void vlm5030_device::update()
{
m_channel->update();
}
/* setup parameteroption when RST=H */
void vlm5030_device::setup_parameter(uint8_t param)
{
/* latch parameter value */
m_parameter = param;
/* bit 0,1 : 4800bps / 9600bps , interpolator step */
if (param & 2) /* bit 1 = 1 , 9600bps */
m_interp_step = 4; /* 9600bps : no interpolator */
else if (param & 1) /* bit1 = 0 & bit0 = 1 , 4800bps */
m_interp_step = 2; /* 4800bps : 2 interpolator */
else /* bit1 = bit0 = 0 : 2400bps */
m_interp_step = 1; /* 2400bps : 4 interpolator */
/* bit 3,4,5 : speed (frame size) */
m_frame_size = vlm5030_speed_table[(param>>3) & 7];
/* bit 6,7 : low / high pitch */
if (param & 0x80) /* bit7=1 , high pitch */
m_pitch_offset = -8;
else if (param & 0x40) /* bit6=1 , low pitch */
m_pitch_offset = 8;
else
m_pitch_offset = 0;
}
void vlm5030_device::restore_state()
{
int interp_effect = FR_SIZE - (m_interp_count%FR_SIZE);
/* restore parameter data */
setup_parameter(m_parameter);
/* restore current energy,pitch & filter */
m_current_energy = m_old_energy + (m_target_energy - m_old_energy) * interp_effect / FR_SIZE;
if (m_old_pitch > 1)
m_current_pitch = m_old_pitch + (m_target_pitch - m_old_pitch) * interp_effect / FR_SIZE;
for (int i = 0; i <= 9 ; i++)
m_current_k[i] = m_old_k[i] + (m_target_k[i] - m_old_k[i]) * interp_effect / FR_SIZE;
}
/* get BSY pin level */
int vlm5030_device::bsy()
{
update();
return m_pin_BSY;
}
/* latch contol data */
void vlm5030_device::data_w(uint8_t data)
{
m_latch_data = data;
}
/* set RST pin level : reset / set table address A8-A15 */
void vlm5030_device::rst(int state)
{
if (m_pin_RST != state)
{
/* pin level is changed */
update();
if (!state)
{
/* H -> L : latch parameters */
m_pin_RST = 0;
setup_parameter(m_latch_data);
}
else
{
/* L -> H : reset chip */
m_pin_RST = 1;
if (m_pin_BSY)
{
device_reset();
}
}
}
}
/* set VCU pin level : ?? unknown */
void vlm5030_device::vcu(int state)
{
/* direct mode / indirect mode */
m_pin_VCU = state;
}
/* set ST pin level : set table address A0-A7 / start speech */
void vlm5030_device::st(int state)
{
if (m_pin_ST != state)
{
/* pin level is changed */
update();
if (!state)
{
/* H -> L */
m_pin_ST = 0;
if (m_pin_VCU)
{
/* direct access mode & address High */
m_vcu_addr_h = ((int)m_latch_data<<8) + 0x01;
}
else
{
/* start speech */
/* check access mode */
if (m_vcu_addr_h)
{
/* direct access mode */
m_address = (m_vcu_addr_h&0xff00) + m_latch_data;
m_vcu_addr_h = 0;
}
else
{
/* indirect access mode */
int table = (m_latch_data&0xfe) + (((int)m_latch_data&1)<<8);
m_address = (read_byte(table)<<8) | read_byte(table+1);
/* show unsupported parameter message */
/* if (m_interp_step != 1) popmessage("No %d %dBPS parameter",table/2,m_interp_step*2400); */
}
/* logerror("VLM5030 %02X start adr=%04X\n", table/2, m_address); */
/* reset process status */
m_sample_count = m_frame_size;
m_interp_count = FR_SIZE;
/* clear filter */
/* start after 3 sampling cycle */
m_phase = PH_RUN;
}
}
else
{
/* L -> H */
m_pin_ST = 1;
/* setup speech , BSY on after 30ms? */
m_phase = PH_SETUP;
m_sample_count = 1; /* wait time for busy on */
m_pin_BSY = 1; /* */
}
}
}
//-------------------------------------------------
// sound_stream_update - handle a stream update
//-------------------------------------------------
void vlm5030_device::sound_stream_update(sound_stream &stream, std::vector<read_stream_view> const &inputs, std::vector<write_stream_view> &outputs)
{
int interp_effect;
int i;
int u[11];
auto &buffer = outputs[0];
/* running */
int sampindex = 0;
if (m_phase == PH_RUN || m_phase == PH_STOP)
{
/* playing speech */
for ( ; sampindex < buffer.samples(); sampindex++)
{
int current_val;
/* check new interpolator or new frame */
if (m_sample_count == 0)
{
if (m_phase == PH_STOP)
{
m_phase = PH_END;
m_sample_count = 1;
goto phase_stop; /* continue to end phase */
}
m_sample_count = m_frame_size;
/* interpolator changes */
if (m_interp_count == 0)
{
/* change to new frame */
m_interp_count = parse_frame(); /* with change phase */
if (m_interp_count == 0)
{
/* end mark found */
m_interp_count = FR_SIZE;
m_sample_count = m_frame_size; /* end -> stop time */
m_phase = PH_STOP;
}
/* Set old target as new start of frame */
m_current_energy = m_old_energy;
m_current_pitch = m_old_pitch;
for (i = 0; i <= 9; i++)
m_current_k[i] = m_old_k[i];
/* is this a zero energy frame? */
if (m_current_energy == 0)
{
/*osd_printf_debug("processing frame: zero energy\n");*/
m_target_energy = 0;
m_target_pitch = m_current_pitch;
for (i = 0; i <= 9; i++)
m_target_k[i] = m_current_k[i];
}
else
{
/*osd_printf_debug("processing frame: Normal\n");*/
/*osd_printf_debug("*** Energy = %d\n",m_current_energy);*/
/*osd_printf_debug("proc: %d %d\n",last_fbuf_head,fbuf_head);*/
m_target_energy = m_new_energy;
m_target_pitch = m_new_pitch;
for (i = 0; i <= 9; i++)
m_target_k[i] = m_new_k[i];
}
}
/* next interpolator */
/* Update values based on step values 25% , 50% , 75% , 100% */
m_interp_count -= m_interp_step;
/* 3,2,1,0 -> 1,2,3,4 */
interp_effect = FR_SIZE - (m_interp_count%FR_SIZE);
m_current_energy = m_old_energy + (m_target_energy - m_old_energy) * interp_effect / FR_SIZE;
if (m_old_pitch > 1)
m_current_pitch = m_old_pitch + (m_target_pitch - m_old_pitch) * interp_effect / FR_SIZE;
for (i = 0; i <= 9 ; i++)
m_current_k[i] = m_old_k[i] + (m_target_k[i] - m_old_k[i]) * interp_effect / FR_SIZE;
}
/* calculate digital filter */
if (m_old_energy == 0)
{
/* generate silent samples here */
current_val = 0x00;
}
else if (m_old_pitch <= 1)
{
/* generate unvoiced samples here */
current_val = (machine().rand()&1) ? m_current_energy : -m_current_energy;
}
else
{
/* generate voiced samples here */
current_val = (m_pitch_count == 0) ? m_current_energy : 0;
}
/* Lattice filter here */
u[10] = current_val;
for (i = 9; i >= 0; i--)
u[i] = u[i+1] - ((-m_current_k[i] * m_x[i]) / 512);
for (i = 9; i >= 1; i--)
m_x[i] = m_x[i-1] + ((-m_current_k[i-1] * u[i-1]) / 512);
m_x[0] = u[0];
/* clipping, buffering */
buffer.put_int_clamp(sampindex, u[0], 512);
/* sample count */
m_sample_count--;
/* pitch */
m_pitch_count++;
if (m_pitch_count >= m_current_pitch)
m_pitch_count = 0;
/* size */
}
/* return; */
}
/* stop phase */
phase_stop:
switch (m_phase)
{
case PH_SETUP:
if (m_sample_count <= buffer.samples())
{
m_sample_count = 0;
/* logerror("VLM5030 BSY=H\n"); */
/* m_pin_BSY = 1; */
m_phase = PH_WAIT;
}
else
{
m_sample_count -= buffer.samples();
}
break;
case PH_END:
if (m_sample_count <= buffer.samples())
{
m_sample_count = 0;
/* logerror("VLM5030 BSY=L\n"); */
m_pin_BSY = 0;
m_phase = PH_IDLE;
}
else
{
m_sample_count -= buffer.samples();
}
}
/* silent buffering */
buffer.fill(0, sampindex);
}