summaryrefslogtreecommitdiffstatshomepage
path: root/trunk/src/emu/sound/es5506.c
diff options
context:
space:
mode:
Diffstat (limited to 'trunk/src/emu/sound/es5506.c')
-rw-r--r--trunk/src/emu/sound/es5506.c2209
1 files changed, 2209 insertions, 0 deletions
diff --git a/trunk/src/emu/sound/es5506.c b/trunk/src/emu/sound/es5506.c
new file mode 100644
index 00000000000..a4cf6d7d50b
--- /dev/null
+++ b/trunk/src/emu/sound/es5506.c
@@ -0,0 +1,2209 @@
+/**********************************************************************************************
+
+ Ensoniq ES5505/6 driver
+ by Aaron Giles
+
+Ensoniq OTIS - ES5505 Ensoniq OTTO - ES5506
+
+ OTIS is a VLSI device designed in a 2 micron double metal OTTO is a VLSI device designed in a 1.5 micron double metal
+ CMOS process. The device is the next generation of audio CMOS process. The device is the next generation of audio
+ technology from ENSONIQ. This new chip achieves a new technology from ENSONIQ. All calculations in the device are
+ level of audio fidelity performance. These improvements made with at least 18-bit accuracy.
+ are achieved through the use of frequency interpolation
+ and on board real time digital filters. All calculations The major features of OTTO are:
+ in the device are made with at least 16 bit accuracy. - 68 pin PLCC package
+ - On chip real time digital filters
+ The major features of OTIS are: - Frequency interpolation
+ - 48 Pin dual in line package - 32 independent voices
+ - On chip real time digital filters - Loop start and stop posistions for each voice
+ - Frequency interpolation - Bidirectional and reverse looping
+ - 32 independent voices (up from 25 in DOCII) - 68000 compatibility for asynchronous bus communication
+ - Loop start and stop positions for each voice - separate host and sound memory interface
+ - Bidirectional and reverse looping - 6 channel stereo serial communication port
+ - 68000 compatibility for asynchronous bus communication - Programmable clocks for defining serial protocol
+ - On board pulse width modulation D to A - Internal volume multiplication and stereo panning
+ - 4 channel stereo serial communication port - A to D input for pots and wheels
+ - Internal volume multiplication and stereo panning - Hardware support for envelopes
+ - A to D input for pots and wheels - Support for dual OTTO systems
+ - Up to 10MHz operation - Optional compressed data format for sample data
+ - Up to 16MHz operation
+ ______ ______
+ _|o \__/ |_
+ A17/D13 - |_|1 48|_| - VSS A A A A A A
+ _| |_ 2 1 1 1 1 1 A
+ A18/D14 - |_|2 47|_| - A16/D12 0 9 8 7 6 5 1
+ _| |_ / / / / / / 4
+ A19/D15 - |_|3 46|_| - A15/D11 H H H H H H H V V H D D D D D D /
+ _| |_ D D D D D D D S D D 1 1 1 1 1 1 D
+ BS - |_|4 45|_| - A14/D10 0 1 2 3 4 5 6 S D 7 5 4 3 2 1 0 9
+ _| |_ ------------------------------------+
+ PWZERO - |_|5 44|_| - A13/D9 / 9 8 7 6 5 4 3 2 1 6 6 6 6 6 6 6 6 |
+ _| |_ / 8 7 6 5 4 3 2 1 |
+ SER0 - |_|6 43|_| - A12/D8 | |
+ _| E |_ SER0|10 60|A13/D8
+ SER1 - |_|7 N 42|_| - A11/D7 SER1|11 59|A12/D7
+ _| S |_ SER2|12 58|A11/D6
+ SER2 - |_|8 O 41|_| - A10/D6 SER3|13 ENSONIQ 57|A10/D5
+ _| N |_ SER4|14 56|A9/D4
+ SER3 - |_|9 I 40|_| - A9/D5 SER5|15 55|A8/D3
+ _| Q |_ WCLK|16 54|A7/D2
+ SERWCLK - |_|10 39|_| - A8/D4 LRCLK|17 ES5506 53|A6/D1
+ _| |_ BCLK|18 52|A5/D0
+ SERLR - |_|11 38|_| - A7/D3 RESB|19 51|A4
+ _| |_ HA5|20 50|A3
+ SERBCLK - |_|12 E 37|_| - A6/D2 HA4|21 OTTO 49|A2
+ _| S |_ HA3|22 48|A1
+ RLO - |_|13 5 36|_| - A5/D1 HA2|23 47|A0
+ _| 5 |_ HA1|24 46|BS1
+ RHI - |_|14 0 35|_| - A4/D0 HA0|25 45|BS0
+ _| 5 |_ POT_IN|26 44|DTACKB
+ LLO - |_|15 34|_| - CLKIN | 2 2 2 3 3 3 3 3 3 3 3 3 3 4 4 4 4 |
+ _| |_ | 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 |
+ LHI - |_|16 33|_| - CAS +--------------------------------------+
+ _| |_ B E E B E B B D S B B B E K B W W
+ POT - |_|17 O 32|_| - AMUX S B L N L S S D S S X S L Q / /
+ _| T |_ E E R E H M C V V A U A C R R R
+ DTACK - |_|18 I 31|_| - RAS R R D H R M C I M
+ _| S |_ _ D A
+ R/W - |_|19 30|_| - E T
+ _| |_ O
+ MS - |_|20 29|_| - IRQ P
+ _| |_
+ CS - |_|21 28|_| - A3
+ _| |_
+ RES - |_|22 27|_| - A2
+ _| |_
+ VSS - |_|23 26|_| - A1
+ _| |_
+ VDD - |_|24 25|_| - A0
+ |________________|
+
+***********************************************************************************************/
+
+#include "emu.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 */
+typedef struct _es5506_voice es5506_voice;
+struct _es5506_voice
+{
+ /* 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;
+};
+
+typedef struct _es5506_state es5506_state;
+struct _es5506_state
+{
+ 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)(device_t *, 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 */
+
+ es5506_voice voice[32]; /* the 32 voices */
+
+ INT32 * scratch;
+
+ INT16 * ulaw_lookup;
+ UINT16 * volume_lookup;
+ device_t *device;
+
+#if MAKE_WAVS
+ void * wavraw; /* raw waveform */
+#endif
+};
+
+
+INLINE es5506_state *get_safe_token(device_t *device)
+{
+ assert(device != NULL);
+ assert(device->type() == ES5505 || device->type() == ES5506);
+ return (es5506_state *)downcast<legacy_device_base *>(device)->token();
+}
+
+
+
+/**********************************************************************************************
+
+ GLOBAL VARIABLES
+
+***********************************************************************************************/
+
+static FILE *eslog;
+
+
+
+/**********************************************************************************************
+
+ update_irq_state -- update the IRQ state
+
+***********************************************************************************************/
+
+static void update_irq_state(es5506_state *chip)
+{
+ /* ES5505/6 irq line has been set high - inform the host */
+ if (chip->irq_callback)
+ (*chip->irq_callback)(chip->device, 1); /* IRQB set high */
+}
+
+static void update_internal_irq_state(es5506_state *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)(chip->device, 0); /* IRQB set low */
+}
+
+/**********************************************************************************************
+
+ compute_tables -- compute static tables
+
+***********************************************************************************************/
+
+static void compute_tables(es5506_state *chip)
+{
+ int i;
+
+ /* allocate ulaw lookup table */
+ chip->ulaw_lookup = auto_alloc_array(chip->device->machine(), INT16, 1 << 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_alloc_array(chip->device->machine(), UINT16, 4096);
+
+ /* generate volume 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);
+ }
+}
+
+
+
+/**********************************************************************************************
+
+ 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(es5506_state *chip, es5506_voice *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(es5506_state *chip, es5506_voice *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(es5506_state *chip, es5506_voice *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(es5506_state *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++)
+ {
+ es5506_voice *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 STREAM_UPDATE( es5506_update )
+{
+ es5506_state *chip = (es5506_state *)param;
+ INT32 *lsrc = chip->scratch, *rsrc = chip->scratch;
+ stream_sample_t *ldest = outputs[0];
+ stream_sample_t *rdest = outputs[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 (samples)
+ {
+ int length = (samples > MAX_SAMPLE_CHUNK) ? MAX_SAMPLE_CHUNK : samples;
+ int samp;
+
+ /* determine left/right source data */
+ lsrc = chip->scratch;
+ rsrc = chip->scratch + length;
+ generate_samples(chip, lsrc, rsrc, length);
+
+ /* copy the data */
+ for (samp = 0; samp < length; 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, length, 4);
+#endif
+
+ /* account for these samples */
+ samples -= length;
+ }
+}
+
+
+/**********************************************************************************************
+
+ DEVICE_START( es5506 ) -- start emulation of the ES5506
+
+***********************************************************************************************/
+
+static void es5506_start_common(device_t *device, const void *config, device_type sndtype)
+{
+ const es5506_interface *intf = (const es5506_interface *)config;
+ es5506_state *chip = get_safe_token(device);
+ int j;
+ UINT32 accum_mask;
+
+ /* debugging */
+ if (LOG_COMMANDS && !eslog)
+ eslog = fopen("es.log", "w");
+
+ /* create the stream */
+ chip->stream = device->machine().sound().stream_alloc(*device, 0, 2, device->clock() / (16*32), chip, es5506_update);
+
+ /* initialize the regions */
+ chip->region_base[0] = intf->region0 ? (UINT16 *)device->machine().region(intf->region0)->base() : NULL;
+ chip->region_base[1] = intf->region1 ? (UINT16 *)device->machine().region(intf->region1)->base() : NULL;
+ chip->region_base[2] = intf->region2 ? (UINT16 *)device->machine().region(intf->region2)->base() : NULL;
+ chip->region_base[3] = intf->region3 ? (UINT16 *)device->machine().region(intf->region3)->base() : NULL;
+
+ /* initialize the rest of the structure */
+ chip->device = device;
+ chip->master_clock = device->clock();
+ chip->irq_callback = intf->irq_callback;
+ chip->irqv = 0x80;
+
+ /* compute the tables */
+ compute_tables(chip);
+
+ /* init the voices */
+ accum_mask = (sndtype == 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_alloc_array(device->machine(), INT32, 2 * MAX_SAMPLE_CHUNK);
+
+ /* register save */
+ device->save_item(NAME(chip->sample_rate));
+ device->save_item(NAME(chip->write_latch));
+ device->save_item(NAME(chip->read_latch));
+
+ device->save_item(NAME(chip->current_page));
+ device->save_item(NAME(chip->active_voices));
+ device->save_item(NAME(chip->mode));
+ device->save_item(NAME(chip->wst));
+ device->save_item(NAME(chip->wend));
+ device->save_item(NAME(chip->lrend));
+ device->save_item(NAME(chip->irqv));
+
+ device->save_pointer(NAME(chip->scratch), 2 * MAX_SAMPLE_CHUNK);
+
+ for (j = 0; j < 32; j++)
+ {
+ device->save_item(NAME(chip->voice[j].control), j);
+ device->save_item(NAME(chip->voice[j].freqcount), j);
+ device->save_item(NAME(chip->voice[j].start), j);
+ device->save_item(NAME(chip->voice[j].lvol), j);
+ device->save_item(NAME(chip->voice[j].end), j);
+ device->save_item(NAME(chip->voice[j].lvramp), j);
+ device->save_item(NAME(chip->voice[j].accum), j);
+ device->save_item(NAME(chip->voice[j].rvol), j);
+ device->save_item(NAME(chip->voice[j].rvramp), j);
+ device->save_item(NAME(chip->voice[j].ecount), j);
+ device->save_item(NAME(chip->voice[j].k2), j);
+ device->save_item(NAME(chip->voice[j].k2ramp), j);
+ device->save_item(NAME(chip->voice[j].k1), j);
+ device->save_item(NAME(chip->voice[j].k1ramp), j);
+ device->save_item(NAME(chip->voice[j].o4n1), j);
+ device->save_item(NAME(chip->voice[j].o3n1), j);
+ device->save_item(NAME(chip->voice[j].o3n2), j);
+ device->save_item(NAME(chip->voice[j].o2n1), j);
+ device->save_item(NAME(chip->voice[j].o2n2), j);
+ device->save_item(NAME(chip->voice[j].o1n1), j);
+ device->save_item(NAME(chip->voice[j].exbank), j);
+ device->save_item(NAME(chip->voice[j].filtcount), j);
+ }
+
+ /* success */
+}
+
+
+static DEVICE_START( es5506 )
+{
+ es5506_start_common(device, device->static_config(), ES5506);
+}
+
+
+
+/**********************************************************************************************
+
+ DEVICE_STOP( es5506 ) -- stop emulation of the ES5506
+
+***********************************************************************************************/
+
+static DEVICE_STOP( es5506 )
+{
+ /* 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 DEVICE_RESET( es5506 )
+{
+}
+
+
+
+/**********************************************************************************************
+
+ es5506_reg_write -- handle a write to the selected ES5506 register
+
+***********************************************************************************************/
+
+INLINE void es5506_reg_write_low(es5506_state *chip, es5506_voice *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));
+ chip->stream->set_sample_rate(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(es5506_state *chip, es5506_voice *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(es5506_state *chip, es5506_voice *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;
+ }
+}
+
+WRITE8_DEVICE_HANDLER( es5506_w )
+{
+ es5506_state *chip = get_safe_token(device);
+ es5506_voice *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 */
+ chip->stream->update();
+
+ /* 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(es5506_state *chip, es5506_voice *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(es5506_state *chip, es5506_voice *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(es5506_state *chip, es5506_voice *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;
+}
+
+READ8_DEVICE_HANDLER( es5506_r )
+{
+ es5506_state *chip = get_safe_token(device);
+ es5506_voice *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 */
+ chip->stream->update();
+
+ /* 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;
+}
+
+
+
+void es5506_voice_bank_w(device_t *device, int voice, int bank)
+{
+ es5506_state *chip = get_safe_token(device);
+ chip->voice[voice].exbank=bank;
+}
+
+
+/**********************************************************************************************
+
+ DEVICE_START( es5505 ) -- start emulation of the ES5505
+
+***********************************************************************************************/
+
+static DEVICE_START( es5505 )
+{
+ const es5505_interface *intf = (const es5505_interface *)device->static_config();
+ es5506_interface 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;
+
+ es5506_start_common(device, &es5506intf, ES5505);
+}
+
+
+
+/**********************************************************************************************
+
+ DEVICE_STOP( es5505 ) -- stop emulation of the ES5505
+
+***********************************************************************************************/
+
+static DEVICE_STOP( es5505 )
+{
+ DEVICE_STOP_CALL( es5506 );
+}
+
+
+static DEVICE_RESET( es5505 )
+{
+ DEVICE_RESET_CALL( es5506 );
+}
+
+
+
+/**********************************************************************************************
+
+ es5505_reg_write -- handle a write to the selected ES5505 register
+
+***********************************************************************************************/
+
+INLINE void es5505_reg_write_low(es5506_state *chip, es5506_voice *voice, offs_t offset, UINT16 data, UINT16 mem_mask)
+{
+ running_machine &machine = chip->device->machine();
+
+ switch (offset)
+ {
+ case 0x00: /* CR */
+ if (ACCESSING_BITS_0_7)
+ {
+#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_BITS_8_15)
+ {
+ 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, "%s:voice %d, control=%04x (raw=%04x & %04x)\n", machine.describe_context(), chip->current_page & 0x1f, voice->control, data, mem_mask ^ 0xffff);
+ break;
+
+ case 0x01: /* FC */
+ if (ACCESSING_BITS_0_7)
+ voice->freqcount = (voice->freqcount & ~0x001fe) | ((data & 0x00ff) << 1);
+ if (ACCESSING_BITS_8_15)
+ voice->freqcount = (voice->freqcount & ~0x1fe00) | ((data & 0xff00) << 1);
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, freq count=%08x\n", machine.describe_context(), chip->current_page & 0x1f, voice->freqcount);
+ break;
+
+ case 0x02: /* STRT (hi) */
+ if (ACCESSING_BITS_0_7)
+ voice->start = (voice->start & ~0x03fc0000) | ((data & 0x00ff) << 18);
+ if (ACCESSING_BITS_8_15)
+ voice->start = (voice->start & ~0x7c000000) | ((data & 0x1f00) << 18);
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, loop start=%08x\n", machine.describe_context(), chip->current_page & 0x1f, voice->start);
+ break;
+
+ case 0x03: /* STRT (lo) */
+ if (ACCESSING_BITS_0_7)
+ voice->start = (voice->start & ~0x00000380) | ((data & 0x00e0) << 2);
+ if (ACCESSING_BITS_8_15)
+ voice->start = (voice->start & ~0x0003fc00) | ((data & 0xff00) << 2);
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, loop start=%08x\n", machine.describe_context(), chip->current_page & 0x1f, voice->start);
+ break;
+
+ case 0x04: /* END (hi) */
+ if (ACCESSING_BITS_0_7)
+ voice->end = (voice->end & ~0x03fc0000) | ((data & 0x00ff) << 18);
+ if (ACCESSING_BITS_8_15)
+ voice->end = (voice->end & ~0x7c000000) | ((data & 0x1f00) << 18);
+#if RAINE_CHECK
+ voice->control |= CONTROL_STOP0;
+#endif
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, loop end=%08x\n", machine.describe_context(), chip->current_page & 0x1f, voice->end);
+ break;
+
+ case 0x05: /* END (lo) */
+ if (ACCESSING_BITS_0_7)
+ voice->end = (voice->end & ~0x00000380) | ((data & 0x00e0) << 2);
+ if (ACCESSING_BITS_8_15)
+ voice->end = (voice->end & ~0x0003fc00) | ((data & 0xff00) << 2);
+#if RAINE_CHECK
+ voice->control |= CONTROL_STOP0;
+#endif
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, loop end=%08x\n", machine.describe_context(), chip->current_page & 0x1f, voice->end);
+ break;
+
+ case 0x06: /* K2 */
+ if (ACCESSING_BITS_0_7)
+ voice->k2 = (voice->k2 & ~0x00f0) | (data & 0x00f0);
+ if (ACCESSING_BITS_8_15)
+ voice->k2 = (voice->k2 & ~0xff00) | (data & 0xff00);
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, K2=%04x\n", machine.describe_context(), chip->current_page & 0x1f, voice->k2);
+ break;
+
+ case 0x07: /* K1 */
+ if (ACCESSING_BITS_0_7)
+ voice->k1 = (voice->k1 & ~0x00f0) | (data & 0x00f0);
+ if (ACCESSING_BITS_8_15)
+ voice->k1 = (voice->k1 & ~0xff00) | (data & 0xff00);
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, K1=%04x\n", machine.describe_context(), chip->current_page & 0x1f, voice->k1);
+ break;
+
+ case 0x08: /* LVOL */
+ if (ACCESSING_BITS_8_15)
+ voice->lvol = (voice->lvol & ~0xff00) | (data & 0xff00);
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, left vol=%04x\n", machine.describe_context(), chip->current_page & 0x1f, voice->lvol);
+ break;
+
+ case 0x09: /* RVOL */
+ if (ACCESSING_BITS_8_15)
+ voice->rvol = (voice->rvol & ~0xff00) | (data & 0xff00);
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, right vol=%04x\n", machine.describe_context(), chip->current_page & 0x1f, voice->rvol);
+ break;
+
+ case 0x0a: /* ACC (hi) */
+ if (ACCESSING_BITS_0_7)
+ voice->accum = (voice->accum & ~0x03fc0000) | ((data & 0x00ff) << 18);
+ if (ACCESSING_BITS_8_15)
+ voice->accum = (voice->accum & ~0x7c000000) | ((data & 0x1f00) << 18);
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, accum=%08x\n", machine.describe_context(), chip->current_page & 0x1f, voice->accum);
+ break;
+
+ case 0x0b: /* ACC (lo) */
+ if (ACCESSING_BITS_0_7)
+ voice->accum = (voice->accum & ~0x000003fc) | ((data & 0x00ff) << 2);
+ if (ACCESSING_BITS_8_15)
+ voice->accum = (voice->accum & ~0x0003fc00) | ((data & 0xff00) << 2);
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, accum=%08x\n", machine.describe_context(), chip->current_page & 0x1f, voice->accum);
+ break;
+
+ case 0x0c: /* unused */
+ break;
+
+ case 0x0d: /* ACT */
+ if (ACCESSING_BITS_0_7)
+ {
+ chip->active_voices = data & 0x1f;
+ chip->sample_rate = chip->master_clock / (16 * (chip->active_voices + 1));
+ chip->stream->set_sample_rate(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_BITS_0_7)
+ chip->current_page = data & 0x7f;
+ break;
+ }
+}
+
+
+INLINE void es5505_reg_write_high(es5506_state *chip, es5506_voice *voice, offs_t offset, UINT16 data, UINT16 mem_mask)
+{
+ running_machine &machine = chip->device->machine();
+
+ switch (offset)
+ {
+ case 0x00: /* CR */
+ if (ACCESSING_BITS_0_7)
+ {
+ 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_BITS_8_15)
+ {
+ 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, "%s:voice %d, control=%04x (raw=%04x & %04x)\n", machine.describe_context(), chip->current_page & 0x1f, voice->control, data, mem_mask);
+ break;
+
+ case 0x01: /* O4(n-1) */
+ if (ACCESSING_BITS_0_7)
+ voice->o4n1 = (voice->o4n1 & ~0x00ff) | (data & 0x00ff);
+ if (ACCESSING_BITS_8_15)
+ voice->o4n1 = (INT16)((voice->o4n1 & ~0xff00) | (data & 0xff00));
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, O4(n-1)=%05x\n", machine.describe_context(), chip->current_page & 0x1f, voice->o4n1 & 0x3ffff);
+ break;
+
+ case 0x02: /* O3(n-1) */
+ if (ACCESSING_BITS_0_7)
+ voice->o3n1 = (voice->o3n1 & ~0x00ff) | (data & 0x00ff);
+ if (ACCESSING_BITS_8_15)
+ voice->o3n1 = (INT16)((voice->o3n1 & ~0xff00) | (data & 0xff00));
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, O3(n-1)=%05x\n", machine.describe_context(), chip->current_page & 0x1f, voice->o3n1 & 0x3ffff);
+ break;
+
+ case 0x03: /* O3(n-2) */
+ if (ACCESSING_BITS_0_7)
+ voice->o3n2 = (voice->o3n2 & ~0x00ff) | (data & 0x00ff);
+ if (ACCESSING_BITS_8_15)
+ voice->o3n2 = (INT16)((voice->o3n2 & ~0xff00) | (data & 0xff00));
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, O3(n-2)=%05x\n", machine.describe_context(), chip->current_page & 0x1f, voice->o3n2 & 0x3ffff);
+ break;
+
+ case 0x04: /* O2(n-1) */
+ if (ACCESSING_BITS_0_7)
+ voice->o2n1 = (voice->o2n1 & ~0x00ff) | (data & 0x00ff);
+ if (ACCESSING_BITS_8_15)
+ voice->o2n1 = (INT16)((voice->o2n1 & ~0xff00) | (data & 0xff00));
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, O2(n-1)=%05x\n", machine.describe_context(), chip->current_page & 0x1f, voice->o2n1 & 0x3ffff);
+ break;
+
+ case 0x05: /* O2(n-2) */
+ if (ACCESSING_BITS_0_7)
+ voice->o2n2 = (voice->o2n2 & ~0x00ff) | (data & 0x00ff);
+ if (ACCESSING_BITS_8_15)
+ voice->o2n2 = (INT16)((voice->o2n2 & ~0xff00) | (data & 0xff00));
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, O2(n-2)=%05x\n", machine.describe_context(), chip->current_page & 0x1f, voice->o2n2 & 0x3ffff);
+ break;
+
+ case 0x06: /* O1(n-1) */
+ if (ACCESSING_BITS_0_7)
+ voice->o1n1 = (voice->o1n1 & ~0x00ff) | (data & 0x00ff);
+ if (ACCESSING_BITS_8_15)
+ voice->o1n1 = (INT16)((voice->o1n1 & ~0xff00) | (data & 0xff00));
+ if (LOG_COMMANDS && eslog)
+ fprintf(eslog, "%s:voice %d, O1(n-1)=%05x (accum=%08x)\n", machine.describe_context(), 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_BITS_0_7)
+ {
+ chip->active_voices = data & 0x1f;
+ chip->sample_rate = chip->master_clock / (16 * (chip->active_voices + 1));
+ chip->stream->set_sample_rate(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_BITS_0_7)
+ chip->current_page = data & 0x7f;
+ break;
+ }
+}
+
+
+INLINE void es5505_reg_write_test(es5506_state *chip, es5506_voice *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_BITS_0_7)
+ {
+ chip->active_voices = data & 0x1f;
+ chip->sample_rate = chip->master_clock / (16 * (chip->active_voices + 1));
+ chip->stream->set_sample_rate(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_BITS_0_7)
+ chip->current_page = data & 0x7f;
+ break;
+ }
+}
+
+
+WRITE16_DEVICE_HANDLER( es5505_w )
+{
+ es5506_state *chip = get_safe_token(device);
+ es5506_voice *voice = &chip->voice[chip->current_page & 0x1f];
+
+// logerror("%s:ES5505 write %02x/%02x = %04x & %04x\n", machine.describe_context(), chip->current_page, offset, data, mem_mask);
+
+ /* force an update */
+ chip->stream->update();
+
+ /* 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(es5506_state *chip, es5506_voice *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(es5506_state *chip, es5506_voice *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(es5506_state *chip, es5506_voice *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;
+}
+
+
+READ16_DEVICE_HANDLER( es5505_r )
+{
+ es5506_state *chip = get_safe_token(device);
+ es5506_voice *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 */
+ chip->stream->update();
+
+ /* 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;
+}
+
+
+
+void es5505_voice_bank_w(device_t *device, int voice, int bank)
+{
+ es5506_state *chip = get_safe_token(device);
+#if RAINE_CHECK
+ chip->voice[voice].control = CONTROL_STOPMASK;
+#endif
+ chip->voice[voice].exbank=bank;
+}
+
+
+
+
+/**************************************************************************
+ * Generic get_info
+ **************************************************************************/
+
+DEVICE_GET_INFO( es5505 )
+{
+ switch (state)
+ {
+ /* --- the following bits of info are returned as 64-bit signed integers --- */
+ case DEVINFO_INT_TOKEN_BYTES: info->i = sizeof(es5506_state); break;
+
+ /* --- the following bits of info are returned as pointers to data or functions --- */
+ case DEVINFO_FCT_START: info->start = DEVICE_START_NAME( es5505 ); break;
+ case DEVINFO_FCT_STOP: info->stop = DEVICE_STOP_NAME( es5505 ); break;
+ case DEVINFO_FCT_RESET: info->reset = DEVICE_RESET_NAME( es5505 ); break;
+
+ /* --- the following bits of info are returned as NULL-terminated strings --- */
+ case DEVINFO_STR_NAME: strcpy(info->s, "ES5505"); break;
+ case DEVINFO_STR_FAMILY: strcpy(info->s, "Ensoniq Wavetable"); break;
+ case DEVINFO_STR_VERSION: strcpy(info->s, "1.0"); break;
+ case DEVINFO_STR_SOURCE_FILE: strcpy(info->s, __FILE__); break;
+ case DEVINFO_STR_CREDITS: strcpy(info->s, "Copyright Nicola Salmoria and the MAME Team"); break;
+ }
+}
+
+
+/**************************************************************************
+ * Generic get_info
+ **************************************************************************/
+
+DEVICE_GET_INFO( es5506 )
+{
+ switch (state)
+ {
+ /* --- the following bits of info are returned as 64-bit signed integers --- */
+ case DEVINFO_INT_TOKEN_BYTES: info->i = sizeof(es5506_state); break;
+
+ /* --- the following bits of info are returned as pointers to data or functions --- */
+ case DEVINFO_FCT_START: info->start = DEVICE_START_NAME( es5506 ); break;
+ case DEVINFO_FCT_STOP: info->stop = DEVICE_STOP_NAME( es5506 ); break;
+ case DEVINFO_FCT_RESET: info->reset = DEVICE_RESET_NAME( es5506 ); break;
+
+ /* --- the following bits of info are returned as NULL-terminated strings --- */
+ case DEVINFO_STR_NAME: strcpy(info->s, "ES5506"); break;
+ case DEVINFO_STR_FAMILY: strcpy(info->s, "Ensoniq Wavetable"); break;
+ case DEVINFO_STR_VERSION: strcpy(info->s, "1.0"); break;
+ case DEVINFO_STR_SOURCE_FILE: strcpy(info->s, __FILE__); break;
+ case DEVINFO_STR_CREDITS: strcpy(info->s, "Copyright Nicola Salmoria and the MAME Team"); break;
+ }
+}
+
+
+DEFINE_LEGACY_SOUND_DEVICE(ES5505, es5505);
+DEFINE_LEGACY_SOUND_DEVICE(ES5506, es5506);