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Diffstat (limited to 'src/emu/sound/es5506.c')
-rw-r--r-- | src/emu/sound/es5506.c | 2205 |
1 files changed, 2205 insertions, 0 deletions
diff --git a/src/emu/sound/es5506.c b/src/emu/sound/es5506.c new file mode 100644 index 00000000000..0f4209faa24 --- /dev/null +++ b/src/emu/sound/es5506.c @@ -0,0 +1,2205 @@ +/********************************************************************************************** + * + * Ensoniq ES5505/6 driver + * by Aaron Giles + * + **********************************************************************************************/ + + +#include <math.h> + +#include "sndintrf.h" +#include "streams.h" +#include "cpuintrf.h" +#include "es5506.h" + + + +/********************************************************************************************** + + CONSTANTS + +***********************************************************************************************/ + +#define LOG_COMMANDS 0 +#define RAINE_CHECK 0 +#define MAKE_WAVS 0 + +#if MAKE_WAVS +#include "wavwrite.h" +#endif + + +#define MAX_SAMPLE_CHUNK 10000 +#define ULAW_MAXBITS 8 + +#define CONTROL_BS1 0x8000 +#define CONTROL_BS0 0x4000 +#define CONTROL_CMPD 0x2000 +#define CONTROL_CA2 0x1000 +#define CONTROL_CA1 0x0800 +#define CONTROL_CA0 0x0400 +#define CONTROL_LP4 0x0200 +#define CONTROL_LP3 0x0100 +#define CONTROL_IRQ 0x0080 +#define CONTROL_DIR 0x0040 +#define CONTROL_IRQE 0x0020 +#define CONTROL_BLE 0x0010 +#define CONTROL_LPE 0x0008 +#define CONTROL_LEI 0x0004 +#define CONTROL_STOP1 0x0002 +#define CONTROL_STOP0 0x0001 + +#define CONTROL_BSMASK (CONTROL_BS1 | CONTROL_BS0) +#define CONTROL_CAMASK (CONTROL_CA2 | CONTROL_CA1 | CONTROL_CA0) +#define CONTROL_LPMASK (CONTROL_LP4 | CONTROL_LP3) +#define CONTROL_LOOPMASK (CONTROL_BLE | CONTROL_LPE) +#define CONTROL_STOPMASK (CONTROL_STOP1 | CONTROL_STOP0) + + + +/********************************************************************************************** + + INTERNAL DATA STRUCTURES + +***********************************************************************************************/ + +/* struct describing a single playing voice */ +struct ES5506Voice +{ + /* external state */ + UINT32 control; /* control register */ + UINT32 freqcount; /* frequency count register */ + UINT32 start; /* start register */ + UINT32 lvol; /* left volume register */ + UINT32 end; /* end register */ + UINT32 lvramp; /* left volume ramp register */ + UINT32 accum; /* accumulator register */ + UINT32 rvol; /* right volume register */ + UINT32 rvramp; /* right volume ramp register */ + UINT32 ecount; /* envelope count register */ + UINT32 k2; /* k2 register */ + UINT32 k2ramp; /* k2 ramp register */ + UINT32 k1; /* k1 register */ + UINT32 k1ramp; /* k1 ramp register */ + INT32 o4n1; /* filter storage O4(n-1) */ + INT32 o3n1; /* filter storage O3(n-1) */ + INT32 o3n2; /* filter storage O3(n-2) */ + INT32 o2n1; /* filter storage O2(n-1) */ + INT32 o2n2; /* filter storage O2(n-2) */ + INT32 o1n1; /* filter storage O1(n-1) */ + UINT32 exbank; /* external address bank */ + + /* internal state */ + UINT8 index; /* index of this voice */ + UINT8 filtcount; /* filter count */ + UINT32 accum_mask; +}; + +struct ES5506Chip +{ + sound_stream *stream; /* which stream are we using */ + int sample_rate; /* current sample rate */ + UINT16 * region_base[4]; /* pointer to the base of the region */ + UINT32 write_latch; /* currently accumulated data for write */ + UINT32 read_latch; /* currently accumulated data for read */ + UINT32 master_clock; /* master clock frequency */ + void (*irq_callback)(int); /* IRQ callback */ + UINT16 (*port_read)(void); /* input port read */ + + UINT8 current_page; /* current register page */ + UINT8 active_voices; /* number of active voices */ + UINT8 mode; /* MODE register */ + UINT8 wst; /* W_ST register */ + UINT8 wend; /* W_END register */ + UINT8 lrend; /* LR_END register */ + UINT8 irqv; /* IRQV register */ + + struct ES5506Voice voice[32]; /* the 32 voices */ + + INT32 * scratch; + + INT16 * ulaw_lookup; + UINT16 * volume_lookup; + +#if MAKE_WAVS + void * wavraw; /* raw waveform */ +#endif +}; + + + +/********************************************************************************************** + + GLOBAL VARIABLES + +***********************************************************************************************/ + +static FILE *eslog; + + + +/********************************************************************************************** + + update_irq_state -- update the IRQ state + +***********************************************************************************************/ + +static void update_irq_state(struct ES5506Chip *chip) +{ + /* ES5505/6 irq line has been set high - inform the host */ + if (chip->irq_callback) + (*chip->irq_callback)(1); /* IRQB set high */ +} + +static void update_internal_irq_state(struct ES5506Chip *chip) +{ + /* Host (cpu) has just read the voice interrupt vector (voice IRQ ack). + + Reset the voice vector to show the IRQB line is low (top bit set). + If we have any stacked interrupts (other voices waiting to be + processed - with their IRQ bit set) then they will be moved into + the vector next time the voice is processed. In emulation + terms they get updated next time generate_samples() is called. + */ + + chip->irqv=0x80; + + if (chip->irq_callback) + (*chip->irq_callback)(0); /* IRQB set low */ +} + +/********************************************************************************************** + + compute_tables -- compute static tables + +***********************************************************************************************/ + +static int compute_tables(struct ES5506Chip *chip) +{ + int i; + + /* allocate ulaw lookup table */ + chip->ulaw_lookup = auto_malloc(sizeof(chip->ulaw_lookup[0]) << ULAW_MAXBITS); + + /* generate ulaw lookup table */ + for (i = 0; i < (1 << ULAW_MAXBITS); i++) + { + UINT16 rawval = (i << (16 - ULAW_MAXBITS)) | (1 << (15 - ULAW_MAXBITS)); + UINT8 exponent = rawval >> 13; + UINT32 mantissa = (rawval << 3) & 0xffff; + + if (exponent == 0) + chip->ulaw_lookup[i] = (INT16)mantissa >> 7; + else + { + mantissa = (mantissa >> 1) | (~mantissa & 0x8000); + chip->ulaw_lookup[i] = (INT16)mantissa >> (7 - exponent); + } + } + + /* allocate volume lookup table */ + chip->volume_lookup = auto_malloc(sizeof(chip->volume_lookup[0]) * 4096); + + /* generate ulaw lookup table */ + for (i = 0; i < 4096; i++) + { + UINT8 exponent = i >> 8; + UINT32 mantissa = (i & 0xff) | 0x100; + + chip->volume_lookup[i] = (mantissa << 11) >> (20 - exponent); + } + + return 1; +} + + + +/********************************************************************************************** + + interpolate -- interpolate between two samples + +***********************************************************************************************/ + +#define interpolate(sample1, sample2, accum) \ + (sample1 * (INT32)(0x800 - (accum & 0x7ff)) + \ + sample2 * (INT32)(accum & 0x7ff)) >> 11; + + + +/********************************************************************************************** + + apply_filters -- apply the 4-pole digital filter to the sample + +***********************************************************************************************/ + +#define apply_filters(voice, sample) \ +do \ +{ \ + /* pole 1 is always low-pass using K1 */ \ + sample = ((INT32)(voice->k1 >> 2) * (sample - voice->o1n1) / 16384) + voice->o1n1; \ + voice->o1n1 = sample; \ + \ + /* pole 2 is always low-pass using K1 */ \ + sample = ((INT32)(voice->k1 >> 2) * (sample - voice->o2n1) / 16384) + voice->o2n1; \ + voice->o2n2 = voice->o2n1; \ + voice->o2n1 = sample; \ + \ + /* remaining poles depend on the current filter setting */ \ + switch (voice->control & CONTROL_LPMASK) \ + { \ + case 0: \ + /* pole 3 is high-pass using K2 */ \ + sample = sample - voice->o2n2 + ((INT32)(voice->k2 >> 2) * voice->o3n1) / 32768 + voice->o3n1 / 2; \ + voice->o3n2 = voice->o3n1; \ + voice->o3n1 = sample; \ + \ + /* pole 4 is high-pass using K2 */ \ + sample = sample - voice->o3n2 + ((INT32)(voice->k2 >> 2) * voice->o4n1) / 32768 + voice->o4n1 / 2; \ + voice->o4n1 = sample; \ + break; \ + \ + case CONTROL_LP3: \ + /* pole 3 is low-pass using K1 */ \ + sample = ((INT32)(voice->k1 >> 2) * (sample - voice->o3n1) / 16384) + voice->o3n1; \ + voice->o3n2 = voice->o3n1; \ + voice->o3n1 = sample; \ + \ + /* pole 4 is high-pass using K2 */ \ + sample = sample - voice->o3n2 + ((INT32)(voice->k2 >> 2) * voice->o4n1) / 32768 + voice->o4n1 / 2; \ + voice->o4n1 = sample; \ + break; \ + \ + case CONTROL_LP4: \ + /* pole 3 is low-pass using K2 */ \ + sample = ((INT32)(voice->k2 >> 2) * (sample - voice->o3n1) / 16384) + voice->o3n1; \ + voice->o3n2 = voice->o3n1; \ + voice->o3n1 = sample; \ + \ + /* pole 4 is low-pass using K2 */ \ + sample = ((INT32)(voice->k2 >> 2) * (sample - voice->o4n1) / 16384) + voice->o4n1; \ + voice->o4n1 = sample; \ + break; \ + \ + case CONTROL_LP4 | CONTROL_LP3: \ + /* pole 3 is low-pass using K1 */ \ + sample = ((INT32)(voice->k1 >> 2) * (sample - voice->o3n1) / 16384) + voice->o3n1; \ + voice->o3n2 = voice->o3n1; \ + voice->o3n1 = sample; \ + \ + /* pole 4 is low-pass using K2 */ \ + sample = ((INT32)(voice->k2 >> 2) * (sample - voice->o4n1) / 16384) + voice->o4n1; \ + voice->o4n1 = sample; \ + break; \ + } \ +} while (0) + + + +/********************************************************************************************** + + update_envelopes -- update the envelopes + +***********************************************************************************************/ + +#define update_envelopes(voice, samples) \ +do \ +{ \ + int count = (samples > 1 && samples > voice->ecount) ? voice->ecount : samples; \ + \ + /* decrement the envelope counter */ \ + voice->ecount -= count; \ + \ + /* ramp left volume */ \ + if (voice->lvramp) \ + { \ + voice->lvol += (INT8)voice->lvramp * count; \ + if ((INT32)voice->lvol < 0) voice->lvol = 0; \ + else if (voice->lvol > 0xffff) voice->lvol = 0xffff; \ + } \ + \ + /* ramp right volume */ \ + if (voice->rvramp) \ + { \ + voice->rvol += (INT8)voice->rvramp * count; \ + if ((INT32)voice->rvol < 0) voice->rvol = 0; \ + else if (voice->rvol > 0xffff) voice->rvol = 0xffff; \ + } \ + \ + /* ramp k1 filter constant */ \ + if (voice->k1ramp && ((INT32)voice->k1ramp >= 0 || !(voice->filtcount & 7))) \ + { \ + voice->k1 += (INT8)voice->k1ramp * count; \ + if ((INT32)voice->k1 < 0) voice->k1 = 0; \ + else if (voice->k1 > 0xffff) voice->k1 = 0xffff; \ + } \ + \ + /* ramp k2 filter constant */ \ + if (voice->k2ramp && ((INT32)voice->k2ramp >= 0 || !(voice->filtcount & 7))) \ + { \ + voice->k2 += (INT8)voice->k2ramp * count; \ + if ((INT32)voice->k2 < 0) voice->k2 = 0; \ + else if (voice->k2 > 0xffff) voice->k2 = 0xffff; \ + } \ + \ + /* update the filter constant counter */ \ + voice->filtcount += count; \ + \ +} while (0) + + + +/********************************************************************************************** + + check_for_end_forward + check_for_end_reverse -- check for loop end and loop appropriately + +***********************************************************************************************/ + +#define check_for_end_forward(voice, accum) \ +do \ +{ \ + /* are we past the end? */ \ + if (accum > voice->end && !(voice->control & CONTROL_LEI)) \ + { \ + /* generate interrupt if required */ \ + if (voice->control&CONTROL_IRQE) \ + voice->control |= CONTROL_IRQ; \ + \ + /* handle the different types of looping */ \ + switch (voice->control & CONTROL_LOOPMASK) \ + { \ + /* non-looping */ \ + case 0: \ + voice->control |= CONTROL_STOP0; \ + goto alldone; \ + \ + /* uni-directional looping */ \ + case CONTROL_LPE: \ + accum = (voice->start + (accum - voice->end)) & voice->accum_mask; \ + break; \ + \ + /* trans-wave looping */ \ + case CONTROL_BLE: \ + accum = (voice->start + (accum - voice->end)) & voice->accum_mask; \ + voice->control = (voice->control & ~CONTROL_LOOPMASK) | CONTROL_LEI;\ + break; \ + \ + /* bi-directional looping */ \ + case CONTROL_LPE | CONTROL_BLE: \ + accum = (voice->end - (accum - voice->end)) & voice->accum_mask; \ + voice->control ^= CONTROL_DIR; \ + goto reverse; \ + } \ + } \ +} while (0) + + +#define check_for_end_reverse(voice, accum) \ +do \ +{ \ + /* are we past the end? */ \ + if (accum < voice->start && !(voice->control & CONTROL_LEI)) \ + { \ + /* generate interrupt if required */ \ + if (voice->control&CONTROL_IRQE) \ + voice->control |= CONTROL_IRQ; \ + \ + /* handle the different types of looping */ \ + switch (voice->control & CONTROL_LOOPMASK) \ + { \ + /* non-looping */ \ + case 0: \ + voice->control |= CONTROL_STOP0; \ + goto alldone; \ + \ + /* uni-directional looping */ \ + case CONTROL_LPE: \ + accum = (voice->end - (voice->start - accum)) & voice->accum_mask; \ + break; \ + \ + /* trans-wave looping */ \ + case CONTROL_BLE: \ + accum = (voice->end - (voice->start - accum)) & voice->accum_mask; \ + voice->control = (voice->control & ~CONTROL_LOOPMASK) | CONTROL_LEI;\ + break; \ + \ + /* bi-directional looping */ \ + case CONTROL_LPE | CONTROL_BLE: \ + accum = (voice->start + (voice->start - accum)) & voice->accum_mask;\ + voice->control ^= CONTROL_DIR; \ + goto reverse; \ + } \ + } \ +} while (0) + + + +/********************************************************************************************** + + generate_dummy -- generate nothing, just apply envelopes + +***********************************************************************************************/ + +static void generate_dummy(struct ES5506Chip *chip, struct ES5506Voice *voice, UINT16 *base, INT32 *lbuffer, INT32 *rbuffer, int samples) +{ + UINT32 freqcount = voice->freqcount; + UINT32 accum = voice->accum & voice->accum_mask; + + /* outer loop, in case we switch directions */ + while (samples > 0 && !(voice->control & CONTROL_STOPMASK)) + { +reverse: + /* two cases: first case is forward direction */ + if (!(voice->control & CONTROL_DIR)) + { + /* loop while we still have samples to generate */ + while (samples--) + { + /* fetch two samples */ + accum = (accum + freqcount) & voice->accum_mask; + + /* update filters/volumes */ + if (voice->ecount != 0) + update_envelopes(voice, 1); + + /* check for loop end */ + check_for_end_forward(voice, accum); + } + } + + /* two cases: second case is backward direction */ + else + { + /* loop while we still have samples to generate */ + while (samples--) + { + /* fetch two samples */ + accum = (accum - freqcount) & voice->accum_mask; + + /* update filters/volumes */ + if (voice->ecount != 0) + update_envelopes(voice, 1); + + /* check for loop end */ + check_for_end_reverse(voice, accum); + } + } + } + + /* if we stopped, process any additional envelope */ +alldone: + voice->accum = accum; + if (samples > 0) + update_envelopes(voice, samples); +} + + + +/********************************************************************************************** + + generate_ulaw -- general u-law decoding routine + +***********************************************************************************************/ + +static void generate_ulaw(struct ES5506Chip *chip, struct ES5506Voice *voice, UINT16 *base, INT32 *lbuffer, INT32 *rbuffer, int samples) +{ + UINT32 freqcount = voice->freqcount; + UINT32 accum = voice->accum & voice->accum_mask; + INT32 lvol = chip->volume_lookup[voice->lvol >> 4]; + INT32 rvol = chip->volume_lookup[voice->rvol >> 4]; + + /* pre-add the bank offset */ + base += voice->exbank; + + /* outer loop, in case we switch directions */ + while (samples > 0 && !(voice->control & CONTROL_STOPMASK)) + { +reverse: + /* two cases: first case is forward direction */ + if (!(voice->control & CONTROL_DIR)) + { + /* loop while we still have samples to generate */ + while (samples--) + { + /* fetch two samples */ + INT32 val1 = base[accum >> 11]; + INT32 val2 = base[((accum + (1 << 11)) & voice->accum_mask) >> 11]; + + /* decompress u-law */ + val1 = chip->ulaw_lookup[val1 >> (16 - ULAW_MAXBITS)]; + val2 = chip->ulaw_lookup[val2 >> (16 - ULAW_MAXBITS)]; + + /* interpolate */ + val1 = interpolate(val1, val2, accum); + accum = (accum + freqcount) & voice->accum_mask; + + /* apply filters */ + apply_filters(voice, val1); + + /* update filters/volumes */ + if (voice->ecount != 0) + { + update_envelopes(voice, 1); + lvol = chip->volume_lookup[voice->lvol >> 4]; + rvol = chip->volume_lookup[voice->rvol >> 4]; + } + + /* apply volumes and add */ + *lbuffer++ += (val1 * lvol) >> 11; + *rbuffer++ += (val1 * rvol) >> 11; + + /* check for loop end */ + check_for_end_forward(voice, accum); + } + } + + /* two cases: second case is backward direction */ + else + { + /* loop while we still have samples to generate */ + while (samples--) + { + /* fetch two samples */ + INT32 val1 = base[accum >> 11]; + INT32 val2 = base[((accum + (1 << 11)) & voice->accum_mask) >> 11]; + + /* decompress u-law */ + val1 = chip->ulaw_lookup[val1 >> (16 - ULAW_MAXBITS)]; + val2 = chip->ulaw_lookup[val2 >> (16 - ULAW_MAXBITS)]; + + /* interpolate */ + val1 = interpolate(val1, val2, accum); + accum = (accum - freqcount) & voice->accum_mask; + + /* apply filters */ + apply_filters(voice, val1); + + /* update filters/volumes */ + if (voice->ecount != 0) + { + update_envelopes(voice, 1); + lvol = chip->volume_lookup[voice->lvol >> 4]; + rvol = chip->volume_lookup[voice->rvol >> 4]; + } + + /* apply volumes and add */ + *lbuffer++ += (val1 * lvol) >> 11; + *rbuffer++ += (val1 * rvol) >> 11; + + /* check for loop end */ + check_for_end_reverse(voice, accum); + } + } + } + + /* if we stopped, process any additional envelope */ +alldone: + voice->accum = accum; + if (samples > 0) + update_envelopes(voice, samples); +} + + + +/********************************************************************************************** + + generate_pcm -- general PCM decoding routine + +***********************************************************************************************/ + +static void generate_pcm(struct ES5506Chip *chip, struct ES5506Voice *voice, UINT16 *base, INT32 *lbuffer, INT32 *rbuffer, int samples) +{ + UINT32 freqcount = voice->freqcount; + UINT32 accum = voice->accum & voice->accum_mask; + INT32 lvol = chip->volume_lookup[voice->lvol >> 4]; + INT32 rvol = chip->volume_lookup[voice->rvol >> 4]; + + /* pre-add the bank offset */ + base += voice->exbank; + + /* outer loop, in case we switch directions */ + while (samples > 0 && !(voice->control & CONTROL_STOPMASK)) + { +reverse: + /* two cases: first case is forward direction */ + if (!(voice->control & CONTROL_DIR)) + { + /* loop while we still have samples to generate */ + while (samples--) + { + /* fetch two samples */ + INT32 val1 = (INT16)base[accum >> 11]; + INT32 val2 = (INT16)base[((accum + (1 << 11)) & voice->accum_mask) >> 11]; + + /* interpolate */ + val1 = interpolate(val1, val2, accum); + accum = (accum + freqcount) & voice->accum_mask; + + /* apply filters */ + apply_filters(voice, val1); + + /* update filters/volumes */ + if (voice->ecount != 0) + { + update_envelopes(voice, 1); + lvol = chip->volume_lookup[voice->lvol >> 4]; + rvol = chip->volume_lookup[voice->rvol >> 4]; + } + + /* apply volumes and add */ + *lbuffer++ += (val1 * lvol) >> 11; + *rbuffer++ += (val1 * rvol) >> 11; + + /* check for loop end */ + check_for_end_forward(voice, accum); + } + } + + /* two cases: second case is backward direction */ + else + { + /* loop while we still have samples to generate */ + while (samples--) + { + /* fetch two samples */ + INT32 val1 = (INT16)base[accum >> 11]; + INT32 val2 = (INT16)base[((accum + (1 << 11)) & voice->accum_mask) >> 11]; + + /* interpolate */ + val1 = interpolate(val1, val2, accum); + accum = (accum - freqcount) & voice->accum_mask; + + /* apply filters */ + apply_filters(voice, val1); + + /* update filters/volumes */ + if (voice->ecount != 0) + { + update_envelopes(voice, 1); + lvol = chip->volume_lookup[voice->lvol >> 4]; + rvol = chip->volume_lookup[voice->rvol >> 4]; + } + + /* apply volumes and add */ + *lbuffer++ += (val1 * lvol) >> 11; + *rbuffer++ += (val1 * rvol) >> 11; + + /* check for loop end */ + check_for_end_reverse(voice, accum); + } + } + } + + /* if we stopped, process any additional envelope */ +alldone: + voice->accum = accum; + if (samples > 0) + update_envelopes(voice, samples); +} + + + +/********************************************************************************************** + + generate_samples -- tell each voice to generate samples + +***********************************************************************************************/ + +static void generate_samples(struct ES5506Chip *chip, INT32 *left, INT32 *right, int samples) +{ + int v; + + /* skip if nothing to do */ + if (!samples) + return; + + /* clear out the accumulator */ + memset(left, 0, samples * sizeof(left[0])); + memset(right, 0, samples * sizeof(right[0])); + + /* loop over voices */ + for (v = 0; v <= chip->active_voices; v++) + { + struct ES5506Voice *voice = &chip->voice[v]; + UINT16 *base = chip->region_base[voice->control >> 14]; + + /* special case: if end == start, stop the voice */ + if (voice->start == voice->end) + voice->control |= CONTROL_STOP0; + + /* generate from the appropriate source */ + if (!base) + { + logerror("NULL region base %d\n",voice->control >> 14); + generate_dummy(chip, voice, base, left, right, samples); + } + else if (voice->control & 0x2000) + generate_ulaw(chip, voice, base, left, right, samples); + else + generate_pcm(chip, voice, base, left, right, samples); + + /* does this voice have it's IRQ bit raised? */ + if (voice->control&CONTROL_IRQ) + { +logerror("IRQ raised on voice %d!!\n",v); + /* only update voice vector if existing IRQ is acked by host */ + if (chip->irqv&0x80) + { + /* latch voice number into vector, and set high bit low */ + chip->irqv=v&0x7f; + + /* take down IRQ bit on voice */ + voice->control&=~CONTROL_IRQ; + + /* inform host of irq */ + update_irq_state(chip); + } + } + } +} + + + +/********************************************************************************************** + + es5506_update -- update the sound chip so that it is in sync with CPU execution + +***********************************************************************************************/ + +static void es5506_update(void *param, stream_sample_t **inputs, stream_sample_t **buffer, int length) +{ + struct ES5506Chip *chip = param; + INT32 *lsrc = chip->scratch, *rsrc = chip->scratch; + stream_sample_t *ldest = buffer[0]; + stream_sample_t *rdest = buffer[1]; + +#if MAKE_WAVS + /* start the logging once we have a sample rate */ + if (chip->sample_rate) + { + if (!chip->wavraw) + chip->wavraw = wav_open("raw.wav", chip->sample_rate, 2); + } +#endif + + /* loop until all samples are output */ + while (length) + { + int samples = (length > MAX_SAMPLE_CHUNK) ? MAX_SAMPLE_CHUNK : length; + int samp; + + /* determine left/right source data */ + lsrc = chip->scratch; + rsrc = chip->scratch + samples; + generate_samples(chip, lsrc, rsrc, samples); + + /* copy the data */ + for (samp = 0; samp < samples; samp++) + { + *ldest++ = lsrc[samp] >> 4; + *rdest++ = rsrc[samp] >> 4; + } + +#if MAKE_WAVS + /* log the raw data */ + if (chip->wavraw) + wav_add_data_32lr(chip->wavraw, lsrc, rsrc, samples, 4); +#endif + + /* account for these samples */ + length -= samples; + } +} + + +/********************************************************************************************** + + ES5506_sh_start -- start emulation of the ES5506 + +***********************************************************************************************/ + +static void *es5506_start_common(sound_type sndtype, int sndindex, int clock, const void *config) +{ + const struct ES5506interface *intf = config; + struct ES5506Chip *chip; + int j; + UINT32 accum_mask; + + chip = auto_malloc(sizeof(*chip)); + memset(chip, 0, sizeof(*chip)); + + /* debugging */ + if (LOG_COMMANDS && !eslog) + eslog = fopen("es.log", "w"); + + /* compute the tables */ + if (!compute_tables(chip)) + return NULL; + + /* create the stream */ + chip->stream = stream_create(0, 2, clock / (16*32), chip, es5506_update); + + /* initialize the regions */ + chip->region_base[0] = intf->region0 ? (UINT16 *)memory_region(intf->region0) : NULL; + chip->region_base[1] = intf->region1 ? (UINT16 *)memory_region(intf->region1) : NULL; + chip->region_base[2] = intf->region2 ? (UINT16 *)memory_region(intf->region2) : NULL; + chip->region_base[3] = intf->region3 ? (UINT16 *)memory_region(intf->region3) : NULL; + + /* initialize the rest of the structure */ + chip->master_clock = clock; + chip->irq_callback = intf->irq_callback; + chip->irqv = 0x80; + + /* init the voices */ + accum_mask = (sndtype == SOUND_ES5506) ? 0xffffffff : 0x7fffffff; + for (j = 0; j < 32; j++) + { + chip->voice[j].index = j; + chip->voice[j].control = CONTROL_STOPMASK; + chip->voice[j].lvol = 0xffff; + chip->voice[j].rvol = 0xffff; + chip->voice[j].exbank = 0; + chip->voice[j].accum_mask = accum_mask; + } + + /* allocate memory */ + chip->scratch = auto_malloc(sizeof(chip->scratch[0]) * 2 * MAX_SAMPLE_CHUNK); + + /* success */ + return chip; +} + + +static void *es5506_start(int sndindex, int clock, const void *config) +{ + return es5506_start_common(SOUND_ES5506, sndindex, clock, config); +} + + + +/********************************************************************************************** + + ES5506_stop -- stop emulation of the ES5506 + +***********************************************************************************************/ + +static void es5506_stop(void *chip) +{ + /* debugging */ + if (LOG_COMMANDS && eslog) + { + fclose(eslog); + eslog = NULL; + } + +#if MAKE_WAVS +{ + int i; + + for (i = 0; i < MAX_ES5506; i++) + { + if (es5506[i].wavraw) + wav_close(es5506[i].wavraw); + } +} +#endif +} + + +static void es5506_reset(void *chip) +{ +} + + + +/********************************************************************************************** + + es5506_reg_write -- handle a write to the selected ES5506 register + +***********************************************************************************************/ + +INLINE void es5506_reg_write_low(struct ES5506Chip *chip, struct ES5506Voice *voice, offs_t offset, UINT32 data) +{ + switch (offset) + { + case 0x00/8: /* CR */ + voice->control = data & 0xffff; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, control=%04x\n", chip->current_page & 0x1f, voice->control); + break; + + case 0x08/8: /* FC */ + voice->freqcount = data & 0x1ffff; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, freq count=%08x\n", chip->current_page & 0x1f, voice->freqcount); + break; + + case 0x10/8: /* LVOL */ + voice->lvol = data & 0xffff; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, left vol=%04x\n", chip->current_page & 0x1f, voice->lvol); + break; + + case 0x18/8: /* LVRAMP */ + voice->lvramp = (data & 0xff00) >> 8; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, left vol ramp=%04x\n", chip->current_page & 0x1f, voice->lvramp); + break; + + case 0x20/8: /* RVOL */ + voice->rvol = data & 0xffff; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, right vol=%04x\n", chip->current_page & 0x1f, voice->rvol); + break; + + case 0x28/8: /* RVRAMP */ + voice->rvramp = (data & 0xff00) >> 8; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, right vol ramp=%04x\n", chip->current_page & 0x1f, voice->rvramp); + break; + + case 0x30/8: /* ECOUNT */ + voice->ecount = data & 0x1ff; + voice->filtcount = 0; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, envelope count=%04x\n", chip->current_page & 0x1f, voice->ecount); + break; + + case 0x38/8: /* K2 */ + voice->k2 = data & 0xffff; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, K2=%04x\n", chip->current_page & 0x1f, voice->k2); + break; + + case 0x40/8: /* K2RAMP */ + voice->k2ramp = ((data & 0xff00) >> 8) | ((data & 0x0001) << 31); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, K2 ramp=%04x\n", chip->current_page & 0x1f, voice->k2ramp); + break; + + case 0x48/8: /* K1 */ + voice->k1 = data & 0xffff; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, K1=%04x\n", chip->current_page & 0x1f, voice->k1); + break; + + case 0x50/8: /* K1RAMP */ + voice->k1ramp = ((data & 0xff00) >> 8) | ((data & 0x0001) << 31); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, K1 ramp=%04x\n", chip->current_page & 0x1f, voice->k1ramp); + break; + + case 0x58/8: /* ACTV */ + { + chip->active_voices = data & 0x1f; + chip->sample_rate = chip->master_clock / (16 * (chip->active_voices + 1)); + stream_set_sample_rate(chip->stream, chip->sample_rate); + + if (LOG_COMMANDS && eslog) + fprintf(eslog, "active voices=%d, sample_rate=%d\n", chip->active_voices, chip->sample_rate); + break; + } + + case 0x60/8: /* MODE */ + chip->mode = data & 0x1f; + break; + + case 0x68/8: /* PAR - read only */ + case 0x70/8: /* IRQV - read only */ + break; + + case 0x78/8: /* PAGE */ + chip->current_page = data & 0x7f; + break; + } +} + + +INLINE void es5506_reg_write_high(struct ES5506Chip *chip, struct ES5506Voice *voice, offs_t offset, UINT32 data) +{ + switch (offset) + { + case 0x00/8: /* CR */ + voice->control = data & 0xffff; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, control=%04x\n", chip->current_page & 0x1f, voice->control); + break; + + case 0x08/8: /* START */ + voice->start = data & 0xfffff800; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, loop start=%08x\n", chip->current_page & 0x1f, voice->start); + break; + + case 0x10/8: /* END */ + voice->end = data & 0xffffff80; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, loop end=%08x\n", chip->current_page & 0x1f, voice->end); + break; + + case 0x18/8: /* ACCUM */ + voice->accum = data; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, accum=%08x\n", chip->current_page & 0x1f, voice->accum); + break; + + case 0x20/8: /* O4(n-1) */ + voice->o4n1 = (INT32)(data << 14) >> 14; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, O4(n-1)=%05x\n", chip->current_page & 0x1f, voice->o4n1 & 0x3ffff); + break; + + case 0x28/8: /* O3(n-1) */ + voice->o3n1 = (INT32)(data << 14) >> 14; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, O3(n-1)=%05x\n", chip->current_page & 0x1f, voice->o3n1 & 0x3ffff); + break; + + case 0x30/8: /* O3(n-2) */ + voice->o3n2 = (INT32)(data << 14) >> 14; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, O3(n-2)=%05x\n", chip->current_page & 0x1f, voice->o3n2 & 0x3ffff); + break; + + case 0x38/8: /* O2(n-1) */ + voice->o2n1 = (INT32)(data << 14) >> 14; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, O2(n-1)=%05x\n", chip->current_page & 0x1f, voice->o2n1 & 0x3ffff); + break; + + case 0x40/8: /* O2(n-2) */ + voice->o2n2 = (INT32)(data << 14) >> 14; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, O2(n-2)=%05x\n", chip->current_page & 0x1f, voice->o2n2 & 0x3ffff); + break; + + case 0x48/8: /* O1(n-1) */ + voice->o1n1 = (INT32)(data << 14) >> 14; + if (LOG_COMMANDS && eslog) + fprintf(eslog, "voice %d, O1(n-1)=%05x\n", chip->current_page & 0x1f, voice->o1n1 & 0x3ffff); + break; + + case 0x50/8: /* W_ST */ + chip->wst = data & 0x7f; + break; + + case 0x58/8: /* W_END */ + chip->wend = data & 0x7f; + break; + + case 0x60/8: /* LR_END */ + chip->lrend = data & 0x7f; + break; + + case 0x68/8: /* PAR - read only */ + case 0x70/8: /* IRQV - read only */ + break; + + case 0x78/8: /* PAGE */ + chip->current_page = data & 0x7f; + break; + } +} + +INLINE void es5506_reg_write_test(struct ES5506Chip *chip, struct ES5506Voice *voice, offs_t offset, UINT32 data) +{ + switch (offset) + { + case 0x00/8: /* CHANNEL 0 LEFT */ + if (LOG_COMMANDS && eslog) + fprintf(eslog, "Channel 0 left test write %08x\n", data); + break; + + case 0x08/8: /* CHANNEL 0 RIGHT */ + if (LOG_COMMANDS && eslog) + fprintf(eslog, "Channel 0 right test write %08x\n", data); + break; + + case 0x10/8: /* CHANNEL 1 LEFT */ + if (LOG_COMMANDS && eslog) + fprintf(eslog, "Channel 1 left test write %08x\n", data); + break; + + case 0x18/8: /* CHANNEL 1 RIGHT */ + if (LOG_COMMANDS && eslog) + fprintf(eslog, "Channel 1 right test write %08x\n", data); + break; + + case 0x20/8: /* CHANNEL 2 LEFT */ + if (LOG_COMMANDS && eslog) + fprintf(eslog, "Channel 2 left test write %08x\n", data); + break; + + case 0x28/8: /* CHANNEL 2 RIGHT */ + if (LOG_COMMANDS && eslog) + fprintf(eslog, "Channel 2 right test write %08x\n", data); + break; + + case 0x30/8: /* CHANNEL 3 LEFT */ + if (LOG_COMMANDS && eslog) + fprintf(eslog, "Channel 3 left test write %08x\n", data); + break; + + case 0x38/8: /* CHANNEL 3 RIGHT */ + if (LOG_COMMANDS && eslog) + fprintf(eslog, "Channel 3 right test write %08x\n", data); + break; + + case 0x40/8: /* CHANNEL 4 LEFT */ + if (LOG_COMMANDS && eslog) + fprintf(eslog, "Channel 4 left test write %08x\n", data); + break; + + case 0x48/8: /* CHANNEL 4 RIGHT */ + if (LOG_COMMANDS && eslog) + fprintf(eslog, "Channel 4 right test write %08x\n", data); + break; + + case 0x50/8: /* CHANNEL 5 LEFT */ + if (LOG_COMMANDS && eslog) + fprintf(eslog, "Channel 5 left test write %08x\n", data); + break; + + case 0x58/8: /* CHANNEL 6 RIGHT */ + if (LOG_COMMANDS && eslog) + fprintf(eslog, "Channel 5 right test write %08x\n", data); + break; + + case 0x60/8: /* EMPTY */ + if (LOG_COMMANDS && eslog) + fprintf(eslog, "Test write EMPTY %08x\n", data); + break; + + case 0x68/8: /* PAR - read only */ + case 0x70/8: /* IRQV - read only */ + break; + + case 0x78/8: /* PAGE */ + chip->current_page = data & 0x7f; + break; + } +} + +static void es5506_reg_write(struct ES5506Chip *chip, offs_t offset, UINT8 data) +{ + struct ES5506Voice *voice = &chip->voice[chip->current_page & 0x1f]; + int shift = 8 * (offset & 3); + + /* accumulate the data */ + chip->write_latch = (chip->write_latch & ~(0xff000000 >> shift)) | (data << (24 - shift)); + + /* wait for a write to complete */ + if (shift != 24) + return; + + /* force an update */ + stream_update(chip->stream); + + /* switch off the page and register */ + if (chip->current_page < 0x20) + es5506_reg_write_low(chip, voice, offset / 4, chip->write_latch); + else if (chip->current_page < 0x40) + es5506_reg_write_high(chip, voice, offset / 4, chip->write_latch); + else + es5506_reg_write_test(chip, voice, offset / 4, chip->write_latch); + + /* clear the write latch when done */ + chip->write_latch = 0; +} + + + +/********************************************************************************************** + + es5506_reg_read -- read from the specified ES5506 register + +***********************************************************************************************/ + +INLINE UINT32 es5506_reg_read_low(struct ES5506Chip *chip, struct ES5506Voice *voice, offs_t offset) +{ + UINT32 result = 0; + + switch (offset) + { + case 0x00/8: /* CR */ + result = voice->control; + break; + + case 0x08/8: /* FC */ + result = voice->freqcount; + break; + + case 0x10/8: /* LVOL */ + result = voice->lvol; + break; + + case 0x18/8: /* LVRAMP */ + result = voice->lvramp << 8; + break; + + case 0x20/8: /* RVOL */ + result = voice->rvol; + break; + + case 0x28/8: /* RVRAMP */ + result = voice->rvramp << 8; + break; + + case 0x30/8: /* ECOUNT */ + result = voice->ecount; + break; + + case 0x38/8: /* K2 */ + result = voice->k2; + break; + + case 0x40/8: /* K2RAMP */ + result = (voice->k2ramp << 8) | (voice->k2ramp >> 31); + break; + + case 0x48/8: /* K1 */ + result = voice->k1; + break; + + case 0x50/8: /* K1RAMP */ + result = (voice->k1ramp << 8) | (voice->k1ramp >> 31); + break; + + case 0x58/8: /* ACTV */ + result = chip->active_voices; + break; + + case 0x60/8: /* MODE */ + result = chip->mode; + break; + + case 0x68/8: /* PAR */ + if (chip->port_read) + result = (*chip->port_read)(); + break; + + case 0x70/8: /* IRQV */ + result = chip->irqv; + update_internal_irq_state(chip); + break; + + case 0x78/8: /* PAGE */ + result = chip->current_page; + break; + } + return result; +} + + +INLINE UINT32 es5506_reg_read_high(struct ES5506Chip *chip, struct ES5506Voice *voice, offs_t offset) +{ + UINT32 result = 0; + + switch (offset) + { + case 0x00/8: /* CR */ + result = voice->control; + break; + + case 0x08/8: /* START */ + result = voice->start; + break; + + case 0x10/8: /* END */ + result = voice->end; + break; + + case 0x18/8: /* ACCUM */ + result = voice->accum; + break; + + case 0x20/8: /* O4(n-1) */ + result = voice->o4n1 & 0x3ffff; + break; + + case 0x28/8: /* O3(n-1) */ + result = voice->o3n1 & 0x3ffff; + break; + + case 0x30/8: /* O3(n-2) */ + result = voice->o3n2 & 0x3ffff; + break; + + case 0x38/8: /* O2(n-1) */ + result = voice->o2n1 & 0x3ffff; + break; + + case 0x40/8: /* O2(n-2) */ + result = voice->o2n2 & 0x3ffff; + break; + + case 0x48/8: /* O1(n-1) */ + result = voice->o1n1 & 0x3ffff; + break; + + case 0x50/8: /* W_ST */ + result = chip->wst; + break; + + case 0x58/8: /* W_END */ + result = chip->wend; + break; + + case 0x60/8: /* LR_END */ + result = chip->lrend; + break; + + case 0x68/8: /* PAR */ + if (chip->port_read) + result = (*chip->port_read)(); + break; + + case 0x70/8: /* IRQV */ + result = chip->irqv; + update_internal_irq_state(chip); + break; + + case 0x78/8: /* PAGE */ + result = chip->current_page; + break; + } + return result; +} + +INLINE UINT32 es5506_reg_read_test(struct ES5506Chip *chip, struct ES5506Voice *voice, offs_t offset) +{ + UINT32 result = 0; + + switch (offset) + { + case 0x68/8: /* PAR */ + if (chip->port_read) + result = (*chip->port_read)(); + break; + + case 0x70/8: /* IRQV */ + result = chip->irqv; + break; + + case 0x78/8: /* PAGE */ + result = chip->current_page; + break; + } + return result; +} + +static UINT8 es5506_reg_read(struct ES5506Chip *chip, offs_t offset) +{ + struct ES5506Voice *voice = &chip->voice[chip->current_page & 0x1f]; + int shift = 8 * (offset & 3); + + /* only read on offset 0 */ + if (shift != 0) + return chip->read_latch >> (24 - shift); + + if (LOG_COMMANDS && eslog) + fprintf(eslog, "read from %02x/%02x -> ", chip->current_page, offset / 4 * 8); + + /* force an update */ + stream_update(chip->stream); + + /* switch off the page and register */ + if (chip->current_page < 0x20) + chip->read_latch = es5506_reg_read_low(chip, voice, offset / 4); + else if (chip->current_page < 0x40) + chip->read_latch = es5506_reg_read_high(chip, voice, offset / 4); + else + chip->read_latch = es5506_reg_read_test(chip, voice, offset / 4); + + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%08x\n", chip->read_latch); + + /* return the high byte */ + return chip->read_latch >> 24; +} + + + +/********************************************************************************************** + + ES5506_data_0_r/ES5506_data_1_r -- handle a read from the status register + +**********************************************************************************************/ + +READ8_HANDLER( ES5506_data_0_r ) +{ + return es5506_reg_read(sndti_token(SOUND_ES5506, 0), offset); +} + +READ8_HANDLER( ES5506_data_1_r ) +{ + return es5506_reg_read(sndti_token(SOUND_ES5506, 1), offset); +} + +READ16_HANDLER( ES5506_data_0_word_r ) +{ + return es5506_reg_read(sndti_token(SOUND_ES5506, 0), offset); +} + +READ16_HANDLER( ES5506_data_1_word_r ) +{ + return es5506_reg_read(sndti_token(SOUND_ES5506, 1), offset); +} + + + +/********************************************************************************************** + + ES5506_data_0_w/ES5506_data_1_w -- handle a write to the current register + +***********************************************************************************************/ + +WRITE8_HANDLER( ES5506_data_0_w ) +{ + es5506_reg_write(sndti_token(SOUND_ES5506, 0), offset, data); +} + +WRITE8_HANDLER( ES5506_data_1_w ) +{ + es5506_reg_write(sndti_token(SOUND_ES5506, 1), offset, data); +} + +WRITE16_HANDLER( ES5506_data_0_word_w ) +{ + if (ACCESSING_LSB) + es5506_reg_write(sndti_token(SOUND_ES5506, 0), offset, data); +} + +WRITE16_HANDLER( ES5506_data_1_word_w ) +{ + if (ACCESSING_LSB) + es5506_reg_write(sndti_token(SOUND_ES5506, 1), offset, data); +} + + + +void ES5506_voice_bank_0_w(int voice, int bank) +{ + struct ES5506Chip *chip = sndti_token(SOUND_ES5506, 0); + chip->voice[voice].exbank=bank; +} + +void ES5506_voice_bank_1_w(int voice, int bank) +{ + struct ES5506Chip *chip = sndti_token(SOUND_ES5506, 1); + chip->voice[voice].exbank=bank; +} + + +/********************************************************************************************** + + ES5505_start -- start emulation of the ES5505 + +***********************************************************************************************/ + +static void *es5505_start(int sndindex, int clock, const void *config) +{ + const struct ES5505interface *intf = config; + struct ES5506interface es5506intf; + + memset(&es5506intf, 0, sizeof(es5506intf)); + + es5506intf.region0 = intf->region0; + es5506intf.region1 = intf->region1; + es5506intf.irq_callback = intf->irq_callback; + es5506intf.read_port = intf->read_port; + + return es5506_start_common(SOUND_ES5505, sndindex, clock, &es5506intf); +} + + + +/********************************************************************************************** + + ES5505_stop -- stop emulation of the ES5506 + +***********************************************************************************************/ + +static void es5505_stop(void *chip) +{ + es5506_stop(chip); +} + + +static void es5505_reset(void *chip) +{ + es5506_reset(chip); +} + + + +/********************************************************************************************** + + es5505_reg_write -- handle a write to the selected ES5505 register + +***********************************************************************************************/ + +INLINE void es5505_reg_write_low(struct ES5506Chip *chip, struct ES5506Voice *voice, offs_t offset, UINT16 data, UINT16 mem_mask) +{ + switch (offset) + { + case 0x00: /* CR */ + if (ACCESSING_LSB) + { +#if RAINE_CHECK + voice->control &= ~(CONTROL_STOPMASK | CONTROL_LOOPMASK | CONTROL_DIR); +#else + voice->control &= ~(CONTROL_STOPMASK | CONTROL_BS0 | CONTROL_LOOPMASK | CONTROL_IRQE | CONTROL_DIR | CONTROL_IRQ); +#endif + voice->control |= (data & (CONTROL_STOPMASK | CONTROL_LOOPMASK | CONTROL_IRQE | CONTROL_DIR | CONTROL_IRQ)) | + ((data << 12) & CONTROL_BS0); + } + if (ACCESSING_MSB) + { + voice->control &= ~(CONTROL_CA0 | CONTROL_CA1 | CONTROL_LPMASK); + voice->control |= ((data >> 2) & CONTROL_LPMASK) | + ((data << 2) & (CONTROL_CA0 | CONTROL_CA1)); + } + + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, control=%04x (raw=%04x & %04x)\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->control, data, mem_mask ^ 0xffff); + break; + + case 0x01: /* FC */ + if (ACCESSING_LSB) + voice->freqcount = (voice->freqcount & ~0x001fe) | ((data & 0x00ff) << 1); + if (ACCESSING_MSB) + voice->freqcount = (voice->freqcount & ~0x1fe00) | ((data & 0xff00) << 1); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, freq count=%08x\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->freqcount); + break; + + case 0x02: /* STRT (hi) */ + if (ACCESSING_LSB) + voice->start = (voice->start & ~0x03fc0000) | ((data & 0x00ff) << 18); + if (ACCESSING_MSB) + voice->start = (voice->start & ~0x7c000000) | ((data & 0x1f00) << 18); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, loop start=%08x\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->start); + break; + + case 0x03: /* STRT (lo) */ + if (ACCESSING_LSB) + voice->start = (voice->start & ~0x00000380) | ((data & 0x00e0) << 2); + if (ACCESSING_MSB) + voice->start = (voice->start & ~0x0003fc00) | ((data & 0xff00) << 2); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, loop start=%08x\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->start); + break; + + case 0x04: /* END (hi) */ + if (ACCESSING_LSB) + voice->end = (voice->end & ~0x03fc0000) | ((data & 0x00ff) << 18); + if (ACCESSING_MSB) + voice->end = (voice->end & ~0x7c000000) | ((data & 0x1f00) << 18); +#if RAINE_CHECK + voice->control |= CONTROL_STOP0; +#endif + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, loop end=%08x\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->end); + break; + + case 0x05: /* END (lo) */ + if (ACCESSING_LSB) + voice->end = (voice->end & ~0x00000380) | ((data & 0x00e0) << 2); + if (ACCESSING_MSB) + voice->end = (voice->end & ~0x0003fc00) | ((data & 0xff00) << 2); +#if RAINE_CHECK + voice->control |= CONTROL_STOP0; +#endif + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, loop end=%08x\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->end); + break; + + case 0x06: /* K2 */ + if (ACCESSING_LSB) + voice->k2 = (voice->k2 & ~0x00f0) | (data & 0x00f0); + if (ACCESSING_MSB) + voice->k2 = (voice->k2 & ~0xff00) | (data & 0xff00); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, K2=%04x\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->k2); + break; + + case 0x07: /* K1 */ + if (ACCESSING_LSB) + voice->k1 = (voice->k1 & ~0x00f0) | (data & 0x00f0); + if (ACCESSING_MSB) + voice->k1 = (voice->k1 & ~0xff00) | (data & 0xff00); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, K1=%04x\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->k1); + break; + + case 0x08: /* LVOL */ + if (ACCESSING_MSB) + voice->lvol = (voice->lvol & ~0xff00) | (data & 0xff00); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, left vol=%04x\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->lvol); + break; + + case 0x09: /* RVOL */ + if (ACCESSING_MSB) + voice->rvol = (voice->rvol & ~0xff00) | (data & 0xff00); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, right vol=%04x\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->rvol); + break; + + case 0x0a: /* ACC (hi) */ + if (ACCESSING_LSB) + voice->accum = (voice->accum & ~0x03fc0000) | ((data & 0x00ff) << 18); + if (ACCESSING_MSB) + voice->accum = (voice->accum & ~0x7c000000) | ((data & 0x1f00) << 18); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, accum=%08x\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->accum); + break; + + case 0x0b: /* ACC (lo) */ + if (ACCESSING_LSB) + voice->accum = (voice->accum & ~0x000003fc) | ((data & 0x00ff) << 2); + if (ACCESSING_MSB) + voice->accum = (voice->accum & ~0x0003fc00) | ((data & 0xff00) << 2); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, accum=%08x\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->accum); + break; + + case 0x0c: /* unused */ + break; + + case 0x0d: /* ACT */ + if (ACCESSING_LSB) + { + chip->active_voices = data & 0x1f; + chip->sample_rate = chip->master_clock / (16 * (chip->active_voices + 1)); + stream_set_sample_rate(chip->stream, chip->sample_rate); + + if (LOG_COMMANDS && eslog) + fprintf(eslog, "active voices=%d, sample_rate=%d\n", chip->active_voices, chip->sample_rate); + } + break; + + case 0x0e: /* IRQV - read only */ + break; + + case 0x0f: /* PAGE */ + if (ACCESSING_LSB) + chip->current_page = data & 0x7f; + break; + } +} + + +INLINE void es5505_reg_write_high(struct ES5506Chip *chip, struct ES5506Voice *voice, offs_t offset, UINT16 data, UINT16 mem_mask) +{ + switch (offset) + { + case 0x00: /* CR */ + if (ACCESSING_LSB) + { + voice->control &= ~(CONTROL_STOPMASK | CONTROL_BS0 | CONTROL_LOOPMASK | CONTROL_IRQE | CONTROL_DIR | CONTROL_IRQ); + voice->control |= (data & (CONTROL_STOPMASK | CONTROL_LOOPMASK | CONTROL_IRQE | CONTROL_DIR | CONTROL_IRQ)) | + ((data << 12) & CONTROL_BS0); + } + if (ACCESSING_MSB) + { + voice->control &= ~(CONTROL_CA0 | CONTROL_CA1 | CONTROL_LPMASK); + voice->control |= ((data >> 2) & CONTROL_LPMASK) | + ((data << 2) & (CONTROL_CA0 | CONTROL_CA1)); + } + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, control=%04x (raw=%04x & %04x)\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->control, data, mem_mask ^ 0xffff); + break; + + case 0x01: /* O4(n-1) */ + if (ACCESSING_LSB) + voice->o4n1 = (voice->o4n1 & ~0x00ff) | (data & 0x00ff); + if (ACCESSING_MSB) + voice->o4n1 = (INT16)((voice->o4n1 & ~0xff00) | (data & 0xff00)); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, O4(n-1)=%05x\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->o4n1 & 0x3ffff); + break; + + case 0x02: /* O3(n-1) */ + if (ACCESSING_LSB) + voice->o3n1 = (voice->o3n1 & ~0x00ff) | (data & 0x00ff); + if (ACCESSING_MSB) + voice->o3n1 = (INT16)((voice->o3n1 & ~0xff00) | (data & 0xff00)); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, O3(n-1)=%05x\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->o3n1 & 0x3ffff); + break; + + case 0x03: /* O3(n-2) */ + if (ACCESSING_LSB) + voice->o3n2 = (voice->o3n2 & ~0x00ff) | (data & 0x00ff); + if (ACCESSING_MSB) + voice->o3n2 = (INT16)((voice->o3n2 & ~0xff00) | (data & 0xff00)); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, O3(n-2)=%05x\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->o3n2 & 0x3ffff); + break; + + case 0x04: /* O2(n-1) */ + if (ACCESSING_LSB) + voice->o2n1 = (voice->o2n1 & ~0x00ff) | (data & 0x00ff); + if (ACCESSING_MSB) + voice->o2n1 = (INT16)((voice->o2n1 & ~0xff00) | (data & 0xff00)); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, O2(n-1)=%05x\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->o2n1 & 0x3ffff); + break; + + case 0x05: /* O2(n-2) */ + if (ACCESSING_LSB) + voice->o2n2 = (voice->o2n2 & ~0x00ff) | (data & 0x00ff); + if (ACCESSING_MSB) + voice->o2n2 = (INT16)((voice->o2n2 & ~0xff00) | (data & 0xff00)); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, O2(n-2)=%05x\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->o2n2 & 0x3ffff); + break; + + case 0x06: /* O1(n-1) */ + if (ACCESSING_LSB) + voice->o1n1 = (voice->o1n1 & ~0x00ff) | (data & 0x00ff); + if (ACCESSING_MSB) + voice->o1n1 = (INT16)((voice->o1n1 & ~0xff00) | (data & 0xff00)); + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%06x:voice %d, O1(n-1)=%05x (accum=%08x)\n", activecpu_get_previouspc(), chip->current_page & 0x1f, voice->o2n1 & 0x3ffff, voice->accum); + break; + + case 0x07: + case 0x08: + case 0x09: + case 0x0a: + case 0x0b: + case 0x0c: /* unused */ + break; + + case 0x0d: /* ACT */ + if (ACCESSING_LSB) + { + chip->active_voices = data & 0x1f; + chip->sample_rate = chip->master_clock / (16 * (chip->active_voices + 1)); + stream_set_sample_rate(chip->stream, chip->sample_rate); + + if (LOG_COMMANDS && eslog) + fprintf(eslog, "active voices=%d, sample_rate=%d\n", chip->active_voices, chip->sample_rate); + } + break; + + case 0x0e: /* IRQV - read only */ + break; + + case 0x0f: /* PAGE */ + if (ACCESSING_LSB) + chip->current_page = data & 0x7f; + break; + } +} + + +INLINE void es5505_reg_write_test(struct ES5506Chip *chip, struct ES5506Voice *voice, offs_t offset, UINT16 data, UINT16 mem_mask) +{ + switch (offset) + { + case 0x00: /* CH0L */ + case 0x01: /* CH0R */ + case 0x02: /* CH1L */ + case 0x03: /* CH1R */ + case 0x04: /* CH2L */ + case 0x05: /* CH2R */ + case 0x06: /* CH3L */ + case 0x07: /* CH3R */ + break; + + case 0x08: /* SERMODE */ + chip->mode = data & 0x0007; + break; + + case 0x09: /* PAR */ + break; + + case 0x0d: /* ACT */ + if (ACCESSING_LSB) + { + chip->active_voices = data & 0x1f; + chip->sample_rate = chip->master_clock / (16 * (chip->active_voices + 1)); + stream_set_sample_rate(chip->stream, chip->sample_rate); + + if (LOG_COMMANDS && eslog) + fprintf(eslog, "active voices=%d, sample_rate=%d\n", chip->active_voices, chip->sample_rate); + } + break; + + case 0x0e: /* IRQV - read only */ + break; + + case 0x0f: /* PAGE */ + if (ACCESSING_LSB) + chip->current_page = data & 0x7f; + break; + } +} + + +static void es5505_reg_write(struct ES5506Chip *chip, offs_t offset, UINT16 data, UINT16 mem_mask) +{ + struct ES5506Voice *voice = &chip->voice[chip->current_page & 0x1f]; + +// logerror("%04x:ES5505 write %02x/%02x = %04x & %04x\n", activecpu_get_previouspc(), chip->current_page, offset, data, mem_mask ^ 0xffff); + + /* force an update */ + stream_update(chip->stream); + + /* switch off the page and register */ + if (chip->current_page < 0x20) + es5505_reg_write_low(chip, voice, offset, data, mem_mask); + else if (chip->current_page < 0x40) + es5505_reg_write_high(chip, voice, offset, data, mem_mask); + else + es5505_reg_write_test(chip, voice, offset, data, mem_mask); +} + + + +/********************************************************************************************** + + es5505_reg_read -- read from the specified ES5505 register + +***********************************************************************************************/ + +INLINE UINT16 es5505_reg_read_low(struct ES5506Chip *chip, struct ES5506Voice *voice, offs_t offset) +{ + UINT16 result = 0; + + switch (offset) + { + case 0x00: /* CR */ + result = (voice->control & (CONTROL_STOPMASK | CONTROL_LOOPMASK | CONTROL_IRQE | CONTROL_DIR | CONTROL_IRQ)) | + ((voice->control & CONTROL_BS0) >> 12) | + ((voice->control & CONTROL_LPMASK) << 2) | + ((voice->control & (CONTROL_CA0 | CONTROL_CA1)) >> 2) | + 0xf000; + break; + + case 0x01: /* FC */ + result = voice->freqcount >> 1; + break; + + case 0x02: /* STRT (hi) */ + result = voice->start >> 18; + break; + + case 0x03: /* STRT (lo) */ + result = voice->start >> 2; + break; + + case 0x04: /* END (hi) */ + result = voice->end >> 18; + break; + + case 0x05: /* END (lo) */ + result = voice->end >> 2; + break; + + case 0x06: /* K2 */ + result = voice->k2; + break; + + case 0x07: /* K1 */ + result = voice->k1; + break; + + case 0x08: /* LVOL */ + result = voice->lvol; + break; + + case 0x09: /* RVOL */ + result = voice->rvol; + break; + + case 0x0a: /* ACC (hi) */ + result = voice->accum >> 18; + break; + + case 0x0b: /* ACC (lo) */ + result = voice->accum >> 2; + break; + + case 0x0c: /* unused */ + break; + + case 0x0d: /* ACT */ + result = chip->active_voices; + break; + + case 0x0e: /* IRQV */ + result = chip->irqv; + update_internal_irq_state(chip); + break; + + case 0x0f: /* PAGE */ + result = chip->current_page; + break; + } + return result; +} + + +INLINE UINT16 es5505_reg_read_high(struct ES5506Chip *chip, struct ES5506Voice *voice, offs_t offset) +{ + UINT16 result = 0; + + switch (offset) + { + case 0x00: /* CR */ + result = (voice->control & (CONTROL_STOPMASK | CONTROL_LOOPMASK | CONTROL_IRQE | CONTROL_DIR | CONTROL_IRQ)) | + ((voice->control & CONTROL_BS0) >> 12) | + ((voice->control & CONTROL_LPMASK) << 2) | + ((voice->control & (CONTROL_CA0 | CONTROL_CA1)) >> 2) | + 0xf000; + break; + + case 0x01: /* O4(n-1) */ + result = voice->o4n1; + break; + + case 0x02: /* O3(n-1) */ + result = voice->o3n1; + break; + + case 0x03: /* O3(n-2) */ + result = voice->o3n2; + break; + + case 0x04: /* O2(n-1) */ + result = voice->o2n1; + break; + + case 0x05: /* O2(n-2) */ + result = voice->o2n2; + break; + + case 0x06: /* O1(n-1) */ + /* special case for the Taito F3 games: they set the accumulator on a stopped */ + /* voice and assume the filters continue to process the data. They then read */ + /* the O1(n-1) in order to extract raw data from the sound ROMs. Since we don't */ + /* want to waste time filtering stopped channels, we just look for a read from */ + /* this register on a stopped voice, and return the raw sample data at the */ + /* accumulator */ + if ((voice->control & CONTROL_STOPMASK) && chip->region_base[voice->control >> 14]) { + voice->o1n1 = chip->region_base[voice->control >> 14][voice->exbank + (voice->accum >> 11)]; + logerror("%02x %08x ==> %08x\n",voice->o1n1,voice->control >> 14,voice->exbank + (voice->accum >> 11)); + } + result = voice->o1n1; + break; + + case 0x07: + case 0x08: + case 0x09: + case 0x0a: + case 0x0b: + case 0x0c: /* unused */ + break; + + case 0x0d: /* ACT */ + result = chip->active_voices; + break; + + case 0x0e: /* IRQV */ + result = chip->irqv; + update_internal_irq_state(chip); + break; + + case 0x0f: /* PAGE */ + result = chip->current_page; + break; + } + return result; +} + + +INLINE UINT16 es5505_reg_read_test(struct ES5506Chip *chip, struct ES5506Voice *voice, offs_t offset) +{ + UINT16 result = 0; + + switch (offset) + { + case 0x00: /* CH0L */ + case 0x01: /* CH0R */ + case 0x02: /* CH1L */ + case 0x03: /* CH1R */ + case 0x04: /* CH2L */ + case 0x05: /* CH2R */ + case 0x06: /* CH3L */ + case 0x07: /* CH3R */ + break; + + case 0x08: /* SERMODE */ + result = chip->mode; + break; + + case 0x09: /* PAR */ + if (chip->port_read) + result = (*chip->port_read)(); + break; + + case 0x0f: /* PAGE */ + result = chip->current_page; + break; + } + return result; +} + + +static UINT16 es5505_reg_read(struct ES5506Chip *chip, offs_t offset) +{ + struct ES5506Voice *voice = &chip->voice[chip->current_page & 0x1f]; + UINT16 result = 0; + + if (LOG_COMMANDS && eslog) + fprintf(eslog, "read from %02x/%02x -> ", chip->current_page, offset); + + /* force an update */ + stream_update(chip->stream); + + /* switch off the page and register */ + if (chip->current_page < 0x20) + result = es5505_reg_read_low(chip, voice, offset); + else if (chip->current_page < 0x40) + result = es5505_reg_read_high(chip, voice, offset); + else + result = es5505_reg_read_test(chip, voice, offset); + + if (LOG_COMMANDS && eslog) + fprintf(eslog, "%04x (accum=%08x)\n", result, voice->accum); + + /* return the high byte */ + return result; +} + + + +/********************************************************************************************** + + ES5505_data_0_r/ES5505_data_1_r -- handle a read from the status register + +***********************************************************************************************/ + +READ16_HANDLER( ES5505_data_0_r ) +{ + return es5505_reg_read(sndti_token(SOUND_ES5505, 0), offset); +} + +READ16_HANDLER( ES5505_data_1_r ) +{ + return es5505_reg_read(sndti_token(SOUND_ES5505, 1), offset); +} + +/********************************************************************************************** + + ES5505_data_0_w/ES5505_data_1_w -- handle a write to the current register + +***********************************************************************************************/ + +WRITE16_HANDLER( ES5505_data_0_w ) +{ + es5505_reg_write(sndti_token(SOUND_ES5505, 0), offset, data, mem_mask); +} + +WRITE16_HANDLER( ES5505_data_1_w ) +{ + es5505_reg_write(sndti_token(SOUND_ES5505, 1), offset, data, mem_mask); +} + +void ES5505_voice_bank_0_w(int voice, int bank) +{ + struct ES5506Chip *chip = sndti_token(SOUND_ES5505, 0); +#if RAINE_CHECK + chip->voice[voice].control = CONTROL_STOPMASK; +#endif + chip->voice[voice].exbank=bank; +} + +void ES5505_voice_bank_1_w(int voice, int bank) +{ + struct ES5506Chip *chip = sndti_token(SOUND_ES5505, 1); +#if RAINE_CHECK + chip->voice[voice].control = CONTROL_STOPMASK; +#endif + chip->voice[voice].exbank=bank; +} + + + + +/************************************************************************** + * Generic get_info + **************************************************************************/ + +static void es5505_set_info(void *token, UINT32 state, sndinfo *info) +{ + switch (state) + { + /* no parameters to set */ + } +} + + +void es5505_get_info(void *token, UINT32 state, sndinfo *info) +{ + switch (state) + { + /* --- the following bits of info are returned as 64-bit signed integers --- */ + + /* --- the following bits of info are returned as pointers to data or functions --- */ + case SNDINFO_PTR_SET_INFO: info->set_info = es5505_set_info; break; + case SNDINFO_PTR_START: info->start = es5505_start; break; + case SNDINFO_PTR_STOP: info->stop = es5505_stop; break; + case SNDINFO_PTR_RESET: info->reset = es5505_reset; break; + + /* --- the following bits of info are returned as NULL-terminated strings --- */ + case SNDINFO_STR_NAME: info->s = "ES5505"; break; + case SNDINFO_STR_CORE_FAMILY: info->s = "Ensoniq Wavetable"; break; + case SNDINFO_STR_CORE_VERSION: info->s = "1.0"; break; + case SNDINFO_STR_CORE_FILE: info->s = __FILE__; break; + case SNDINFO_STR_CORE_CREDITS: info->s = "Copyright (c) 2004, The MAME Team"; break; + } +} + + +/************************************************************************** + * Generic get_info + **************************************************************************/ + +static void es5506_set_info(void *token, UINT32 state, sndinfo *info) +{ + switch (state) + { + /* no parameters to set */ + } +} + + +void es5506_get_info(void *token, UINT32 state, sndinfo *info) +{ + switch (state) + { + /* --- the following bits of info are returned as 64-bit signed integers --- */ + + /* --- the following bits of info are returned as pointers to data or functions --- */ + case SNDINFO_PTR_SET_INFO: info->set_info = es5506_set_info; break; + case SNDINFO_PTR_START: info->start = es5506_start; break; + case SNDINFO_PTR_STOP: info->stop = es5506_stop; break; + case SNDINFO_PTR_RESET: info->reset = es5506_reset; break; + + /* --- the following bits of info are returned as NULL-terminated strings --- */ + case SNDINFO_STR_NAME: info->s = "ES5506"; break; + case SNDINFO_STR_CORE_FAMILY: info->s = "Ensoniq Wavetable"; break; + case SNDINFO_STR_CORE_VERSION: info->s = "1.0"; break; + case SNDINFO_STR_CORE_FILE: info->s = __FILE__; break; + case SNDINFO_STR_CORE_CREDITS: info->s = "Copyright (c) 2004, The MAME Team"; break; + } +} + |