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-rw-r--r--src/devices/machine/spg2xx_audio.cpp1258
1 files changed, 0 insertions, 1258 deletions
diff --git a/src/devices/machine/spg2xx_audio.cpp b/src/devices/machine/spg2xx_audio.cpp
deleted file mode 100644
index a09eb907694..00000000000
--- a/src/devices/machine/spg2xx_audio.cpp
+++ /dev/null
@@ -1,1258 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Ryan Holtz
-/*****************************************************************************
-
- SunPlus SPG2xx-series SoC peripheral emulation (Audio)
-
-**********************************************************************/
-
-#include "emu.h"
-#include "spg2xx_audio.h"
-
-DEFINE_DEVICE_TYPE(SPG2XX_AUDIO, spg2xx_audio_device, "spg2xx", "SPG2xx-series System-on-a-Chip Audio")
-
-#define LOG_SPU_READS (1U << 0)
-#define LOG_SPU_WRITES (1U << 1)
-#define LOG_UNKNOWN_SPU (1U << 2)
-#define LOG_CHANNEL_READS (1U << 3)
-#define LOG_CHANNEL_WRITES (1U << 4)
-#define LOG_ENVELOPES (1U << 5)
-#define LOG_SAMPLES (1U << 6)
-#define LOG_RAMPDOWN (1U << 7)
-#define LOG_BEAT (1U << 8)
-
-#define LOG_ALL (LOG_SPU_READS | LOG_SPU_WRITES | LOG_UNKNOWN_SPU | LOG_CHANNEL_READS | LOG_CHANNEL_WRITES \
- | LOG_ENVELOPES | LOG_SAMPLES | LOG_RAMPDOWN | LOG_BEAT)
-
-#define VERBOSE (0)
-#include "logmacro.h"
-
-#define SPG_DEBUG_AUDIO (0)
-
-
-spg2xx_audio_device::spg2xx_audio_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
- : device_t(mconfig, type, tag, owner, clock)
- , device_sound_interface(mconfig, *this)
- , m_space_read_cb(*this)
- , m_irq_cb(*this)
-{
-}
-
-spg2xx_audio_device::spg2xx_audio_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
- : spg2xx_audio_device(mconfig, SPG2XX_AUDIO, tag, owner, clock)
-{
-}
-
-
-void spg2xx_audio_device::device_start()
-{
- m_audio_beat = timer_alloc(TIMER_BEAT);
- m_audio_beat->adjust(attotime::never);
-
- m_stream = stream_alloc(0, 2, 281250/4);
-
- m_channel_debug = -1;
-
- save_item(NAME(m_debug_samples));
- save_item(NAME(m_debug_rates));
-
- save_item(NAME(m_audio_regs));
- save_item(NAME(m_audio_phase_regs));
- save_item(NAME(m_audio_ctrl_regs));
-
- save_item(NAME(m_sample_shift));
- save_item(NAME(m_sample_count));
- save_item(NAME(m_sample_addr));
- save_item(NAME(m_channel_rate));
- save_item(NAME(m_channel_rate_accum));
- save_item(NAME(m_rampdown_frame));
- save_item(NAME(m_envclk_frame));
- save_item(NAME(m_envelope_addr));
- save_item(NAME(m_channel_debug));
- save_item(NAME(m_audio_curr_beat_base_count));
-
-
- for (int i = 0; i < 16; i++)
- {
- save_item(NAME(m_adpcm[i].m_signal), i);
- save_item(NAME(m_adpcm[i].m_step), i);
- }
-
- m_space_read_cb.resolve_safe(0);
- m_irq_cb.resolve();
-}
-
-void spg2xx_audio_device::device_reset()
-{
- memset(m_audio_regs, 0, 0x200 * sizeof(uint16_t));
- memset(m_audio_phase_regs, 0, 0x200 * sizeof(uint16_t));
- memset(m_audio_ctrl_regs, 0, 0x400 * sizeof(uint16_t));
-
- memset(m_sample_shift, 0, 16);
- memset(m_sample_count, 0, sizeof(uint32_t) * 16);
- memset(m_sample_addr, 0, sizeof(uint32_t) * 16);
- memset(m_channel_rate, 0, sizeof(double) * 16);
- memset(m_channel_rate_accum, 0, sizeof(double) * 16);
- memset(m_rampdown_frame, 0, sizeof(uint32_t) * 16);
- memset(m_envclk_frame, 4, sizeof(uint32_t) * 16);
- memset(m_envelope_addr, 0, sizeof(uint32_t) * 16);
-
- m_debug_samples = false;
- m_debug_rates = false;
- m_audio_curr_beat_base_count = 0;
-
- m_audio_ctrl_regs[AUDIO_CHANNEL_REPEAT] = 0x3f;
- m_audio_ctrl_regs[AUDIO_CHANNEL_ENV_MODE] = 0x3f;
-
- m_audio_beat->adjust(attotime::from_ticks(4, 281250), 0, attotime::from_ticks(4, 281250));
-}
-
-
-void spg2xx_audio_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
-{
- switch (id)
- {
- case TIMER_BEAT:
- audio_beat_tick();
- break;
- }
-}
-
-/***********************
-* Audio Hardware *
-***********************/
-void spg2xx_audio_device::check_irqs(const uint16_t changed)
-{
- if (changed & (AUDIO_BIS_MASK | AUDIO_BIE_MASK)) // Beat IRQ
- {
- if ((m_audio_ctrl_regs[AUDIO_BEAT_COUNT] & (AUDIO_BIS_MASK | AUDIO_BIE_MASK)) == (AUDIO_BIS_MASK | AUDIO_BIE_MASK))
- {
- LOGMASKED(LOG_BEAT, "Asserting beat IRQ\n");
- m_irq_cb(true);
- }
- else
- {
- LOGMASKED(LOG_BEAT, "Clearing beat IRQ\n");
- m_irq_cb(false);
- }
- }
-}
-
-READ16_MEMBER(spg2xx_audio_device::audio_ctrl_r)
-{
- uint16_t data = m_audio_ctrl_regs[offset];
-
- switch (offset)
- {
- case AUDIO_CHANNEL_ENABLE:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Channel Enable: %04x\n", data);
- break;
-
- case AUDIO_MAIN_VOLUME:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Main Volume: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_FIQ_ENABLE:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Channel FIQ Enable: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_FIQ_STATUS:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Channel FIQ Acknowledge: %04x\n", data);
- break;
-
- case AUDIO_BEAT_BASE_COUNT:
- LOGMASKED(LOG_SPU_READS | LOG_BEAT, "audio_ctrl_r: Beat Base Count: %04x\n", data);
- break;
-
- case AUDIO_BEAT_COUNT:
- LOGMASKED(LOG_SPU_READS | LOG_BEAT, "audio_ctrl_r: Beat Count: %04x\n", data);
- break;
-
- case AUDIO_ENVCLK0:
- case AUDIO_ENVCLK1:
- LOGMASKED(LOG_SPU_READS | LOG_ENVELOPES, "audio_ctrl_r: Envelope Interval %d (lo): %04x\n", offset == AUDIO_ENVCLK0 ? 0 : 1, data);
- break;
-
- case AUDIO_ENVCLK0_HIGH:
- case AUDIO_ENVCLK1_HIGH:
- LOGMASKED(LOG_SPU_READS | LOG_ENVELOPES, "audio_ctrl_r: Envelope Interval %d (hi): %04x\n", offset == AUDIO_ENVCLK0_HIGH ? 0 : 1, data);
- break;
-
- case AUDIO_ENV_RAMP_DOWN:
- LOGMASKED(LOG_SPU_READS | LOG_RAMPDOWN, "audio_ctrl_r: Envelope Fast Ramp Down: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_STOP:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Channel Stop Status: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_ZERO_CROSS:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Channel Zero-Cross Enable: %04x\n", data);
- break;
-
- case AUDIO_CONTROL:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Control: %04x\n", data);
- break;
-
- case AUDIO_COMPRESS_CTRL:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Compressor Control: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_STATUS:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Channel Status: %04x\n", data);
- break;
-
- case AUDIO_WAVE_IN_L:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Wave In (L) / FIFO Write Data: %04x\n", data);
- break;
-
- case AUDIO_WAVE_IN_R:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Wave In (R) / Software Channel FIFO IRQ Control: %04x\n", data);
- break;
-
- case AUDIO_WAVE_OUT_L:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Wave Out (L): %04x\n", data);
- break;
-
- case AUDIO_WAVE_OUT_R:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Wave Out (R): %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_REPEAT:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Channel Repeat Enable: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_ENV_MODE:
- LOGMASKED(LOG_SPU_READS | LOG_ENVELOPES, "audio_ctrl_r: Channel Envelope Enable: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_TONE_RELEASE:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Channel Tone Release Enable: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_ENV_IRQ:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Channel Envelope IRQ Status: %04x\n", data);
- break;
-
- case AUDIO_CHANNEL_PITCH_BEND:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Channel Pitch Bend Enable: %04x\n", data);
- break;
-
- case AUDIO_SOFT_PHASE:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Software Channel Phase: %04x\n", data);
- break;
-
- case AUDIO_ATTACK_RELEASE:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: Attack/Release Time Control: %04x\n", data);
- break;
-
- case AUDIO_EQ_CUTOFF10:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: EQ Cutoff Frequency 0/1: %04x\n", data);
- break;
-
- case AUDIO_EQ_CUTOFF32:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: EQ Cutoff Frequency 2/3: %04x\n", data);
- break;
-
- case AUDIO_EQ_GAIN10:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: EQ Cutoff Gain 0/1: %04x\n", data);
- break;
-
- case AUDIO_EQ_GAIN32:
- LOGMASKED(LOG_SPU_READS, "audio_ctrl_r: EQ Cutoff Gain 2/3: %04x\n", data);
- break;
-
- default:
- LOGMASKED(LOG_UNKNOWN_SPU, "audio_ctrl_r: Unknown register %04x = %04x\n", 0x3000 + offset, data);
- break;
- }
-
- return data;
-}
-
-READ16_MEMBER(spg2xx_audio_device::audio_r)
-{
- const uint16_t channel = (offset & 0x00f0) >> 4;
- uint16_t data = m_audio_regs[offset];
-
-
- switch (offset & AUDIO_CHAN_OFFSET_MASK)
- {
- case AUDIO_WAVE_ADDR:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Wave Addr (lo): %04x\n", channel, data);
- break;
-
- case AUDIO_MODE:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Mode: %04x (ADPCM:%d, 16M:%d, TONE:%d, LADDR_HI:%04x, WADDR_HI:%04x)\n", channel, data,
- get_adpcm_bit(channel), get_16bit_bit(channel), get_tone_mode(channel), get_loop_addr_high(channel), get_wave_addr_high(channel));
- break;
-
- case AUDIO_LOOP_ADDR:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Loop Addr: %04x\n", channel, data);
- break;
-
- case AUDIO_PAN_VOL:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Pan/Vol: %04x (PAN:%02x, VOL:%02x)\n", channel, data,
- get_pan(channel), get_volume(channel));
- break;
-
- case AUDIO_ENVELOPE0:
- LOGMASKED(LOG_CHANNEL_READS | LOG_ENVELOPES, "audio_r: Channel %d: Envelope0: %04x (RPTPER:%d, TARGET:%02x, SIGN:%d, INC:%02x)\n", channel, data,
- get_repeat_period_bit(channel), get_envelope_target(channel), get_envelope_sign_bit(channel), get_envelope_inc(channel));
- break;
-
- case AUDIO_ENVELOPE_DATA:
- LOGMASKED(LOG_CHANNEL_READS | LOG_ENVELOPES, "audio_r: Channel %d: Envelope Data: %04x (CNT:%d, EDD:%02x)\n", channel, data,
- get_envelope_count(channel), get_edd(channel));
- break;
-
- case AUDIO_ENVELOPE1:
- LOGMASKED(LOG_CHANNEL_READS | LOG_ENVELOPES, "audio_r: Channel %d: Envelope1 Data: %04x (RPTCNT:%02x, RPT:%d, LOAD:%02x)\n", channel, data,
- get_envelope_repeat_count(channel), get_envelope_repeat_bit(channel), get_envelope_load(channel));
- break;
-
- case AUDIO_ENVELOPE_ADDR_HIGH:
- LOGMASKED(LOG_CHANNEL_READS | LOG_ENVELOPES, "audio_r: Channel %d: Envelope Addr (hi): %04x (IRQADDR:%03x, IRQEN:%d, EADDR_HI:%02x)\n", channel, data,
- get_audio_irq_addr(channel), get_audio_irq_enable_bit(channel), get_envelope_addr_high(channel));
- break;
-
- case AUDIO_ENVELOPE_ADDR:
- LOGMASKED(LOG_CHANNEL_READS | LOG_ENVELOPES, "audio_r: Channel %d: Envelope Addr (lo): %04x \n", channel, data);
- break;
-
- case AUDIO_WAVE_DATA_PREV:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Wave Data Prev: %04x \n", channel, data);
- break;
-
- case AUDIO_ENVELOPE_LOOP_CTRL:
- LOGMASKED(LOG_CHANNEL_READS | LOG_ENVELOPES, "audio_r: Channel %d: Envelope Loop Ctrl: %04x (RDOFFS:%02x, EAOFFS:%03x)\n", channel, data,
- get_rampdown_offset(channel), get_envelope_eaoffset(channel));
- break;
-
- case AUDIO_WAVE_DATA:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: Wave Data: %04x\n", channel, data);
- break;
-
- case AUDIO_ADPCM_SEL:
- LOGMASKED(LOG_CHANNEL_READS, "audio_r: Channel %d: ADPCM Sel: %04x (ADPCM36:%d, POINTNUM:%02x\n", channel, data,
- get_adpcm36_bit(channel), get_point_number(channel));
- break;
-
- default:
- LOGMASKED(LOG_UNKNOWN_SPU, "audio_r: Unknown register %04x\n", 0x3000 + offset);
- break;
-
- }
-
- return data;
-}
-
-
-READ16_MEMBER(spg2xx_audio_device::audio_phase_r)
-{
- const uint16_t channel = (offset & 0x00f0) >> 4;
- uint16_t data = m_audio_phase_regs[offset];
-
- switch (offset & AUDIO_CHAN_OFFSET_MASK)
- {
- case AUDIO_PHASE_HIGH:
- LOGMASKED(LOG_CHANNEL_READS, "audio_phase_r: Channel %d: Phase High: %04x\n", channel, data);
- break;
-
- case AUDIO_PHASE_ACCUM_HIGH:
- LOGMASKED(LOG_CHANNEL_READS, "audio_phase_r: Channel %d: Phase Accum High: %04x\n", channel, data);
- break;
-
- case AUDIO_TARGET_PHASE_HIGH:
- LOGMASKED(LOG_CHANNEL_READS, "audio_phase_r: Channel %d: Target Phase High: %04x\n", channel, data);
- break;
-
- case AUDIO_RAMP_DOWN_CLOCK:
- LOGMASKED(LOG_CHANNEL_READS | LOG_RAMPDOWN, "audio_phase_r: Channel %d: Rampdown Clock: %04x\n", channel, data);
- break;
-
- case AUDIO_PHASE:
- LOGMASKED(LOG_CHANNEL_READS, "audio_phase_r: Channel %d: Phase: %04x\n", channel, data);
- break;
-
- case AUDIO_PHASE_ACCUM:
- LOGMASKED(LOG_CHANNEL_READS, "audio_phase_r: Channel %d: Phase Accum: %04x\n", channel, data);
- break;
-
- case AUDIO_TARGET_PHASE:
- LOGMASKED(LOG_CHANNEL_READS, "audio_phase_r: Channel %d: Target Phase: %04x\n", channel, data);
- break;
-
- case AUDIO_PHASE_CTRL:
- LOGMASKED(LOG_CHANNEL_READS, "audio_phase_r: Channel %d: Phase Ctrl: %04x (TIMESTEP:%d, SIGN:%d, OFFSET:%03x\n", channel, data,
- get_phase_time_step(channel), get_phase_sign_bit(channel), get_phase_offset(channel));
- break;
-
- default:
- LOGMASKED(LOG_UNKNOWN_SPU, "audio_phase_r: Unknown register %04x\n", 0x3000 + offset);
- break;
- }
-
- return data;
-}
-
-WRITE16_MEMBER(spg2xx_audio_device::audio_ctrl_w)
-{
- switch (offset)
- {
- case AUDIO_CHANNEL_ENABLE:
- {
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Channel Enable: %04x\n", data);
- const uint16_t changed = m_audio_ctrl_regs[AUDIO_CHANNEL_ENABLE] ^ data;
- for (uint32_t channel_bit = 0; channel_bit < 16; channel_bit++)
- {
- const uint16_t mask = 1 << channel_bit;
- if (!(changed & mask))
- continue;
-
- if (data & mask)
- {
- if (!(m_audio_ctrl_regs[AUDIO_CHANNEL_STATUS] & mask))
- {
- LOGMASKED(LOG_SPU_WRITES, "Enabling channel %d\n", channel_bit);
- m_audio_ctrl_regs[offset] |= mask;
- if (!(m_audio_ctrl_regs[AUDIO_CHANNEL_STOP] & mask))
- {
- LOGMASKED(LOG_SPU_WRITES, "Stop not set, starting playback on channel %d, mask %04x\n", channel_bit, mask);
- m_audio_ctrl_regs[AUDIO_CHANNEL_STATUS] |= mask;
- m_sample_addr[channel_bit] = get_wave_addr(channel_bit);
- m_envelope_addr[channel_bit] = get_envelope_addr(channel_bit);
- set_envelope_count(channel_bit, get_envelope_load(channel_bit));
- }
- m_adpcm[channel_bit].reset();
- m_sample_shift[channel_bit] = 0;
- m_sample_count[channel_bit] = 0;
- }
- }
- else
- {
- stop_channel(channel_bit);
- //m_audio_ctrl_regs[offset] &= ~mask;
- //m_audio_ctrl_regs[AUDIO_CHANNEL_STATUS] &= ~mask;
- //m_audio_ctrl_regs[AUDIO_CHANNEL_STOP] |= mask;
- //m_audio_ctrl_regs[AUDIO_CHANNEL_TONE_RELEASE] &= ~mask;
- }
- }
- break;
- }
-
- case AUDIO_MAIN_VOLUME:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Main Volume: %04x\n", data);
- m_audio_ctrl_regs[offset] = data & AUDIO_MAIN_VOLUME_MASK;
- break;
-
- case AUDIO_CHANNEL_FIQ_ENABLE:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Channel FIQ Enable: %04x\n", data);
- m_audio_ctrl_regs[offset] = data & AUDIO_CHANNEL_FIQ_ENABLE_MASK;
- break;
-
- case AUDIO_CHANNEL_FIQ_STATUS:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Channel FIQ Acknowledge: %04x\n", data);
- m_audio_ctrl_regs[offset] &= ~(data & AUDIO_CHANNEL_FIQ_STATUS_MASK);
- break;
-
- case AUDIO_BEAT_BASE_COUNT:
- LOGMASKED(LOG_SPU_WRITES | LOG_BEAT, "audio_ctrl_w: Beat Base Count: %04x\n", data);
- m_audio_ctrl_regs[offset] = data & AUDIO_BEAT_BASE_COUNT_MASK;
- m_audio_curr_beat_base_count = m_audio_ctrl_regs[offset];
- break;
-
- case AUDIO_BEAT_COUNT:
- {
- LOGMASKED(LOG_SPU_WRITES | LOG_BEAT, "audio_ctrl_w: Beat Count: %04x\n", data);
- const uint16_t old = m_audio_ctrl_regs[offset];
- m_audio_ctrl_regs[offset] &= ~(data & AUDIO_BIS_MASK);
- m_audio_ctrl_regs[offset] &= AUDIO_BIS_MASK;
- m_audio_ctrl_regs[offset] |= data & ~AUDIO_BIS_MASK;
- const uint16_t changed = old ^ m_audio_ctrl_regs[offset];
- if (changed & (AUDIO_BIS_MASK | AUDIO_BIE_MASK))
- {
- LOGMASKED(LOG_BEAT, "BIS mask changed, updating IRQ\n");
- check_irqs(changed & (AUDIO_BIS_MASK | AUDIO_BIE_MASK));
- }
- break;
- }
-
- case AUDIO_ENVCLK0:
- case AUDIO_ENVCLK1:
- {
- LOGMASKED(LOG_SPU_WRITES | LOG_ENVELOPES, "audio_ctrl_w: Envelope Interval %d (lo): %04x\n", offset == AUDIO_ENVCLK0 ? 0 : 1, data);
- const uint16_t old = m_audio_ctrl_regs[offset];
- m_audio_ctrl_regs[offset] = data;
- const uint16_t changed = old ^ m_audio_ctrl_regs[offset];
-
- if (!changed)
- break;
-
- const uint8_t channel_offset = offset == AUDIO_ENVCLK0 ? 0 : 8;
- for (uint8_t channel_bit = 0; channel_bit < 4; channel_bit++)
- {
- const uint8_t shift = channel_bit << 2;
- const uint16_t mask = 0x0f << shift;
- if (changed & mask)
- {
- m_envclk_frame[channel_bit + channel_offset] = get_envclk_frame_count(channel_bit + channel_offset);
- }
- }
- break;
- }
-
- case AUDIO_ENVCLK0_HIGH:
- case AUDIO_ENVCLK1_HIGH:
- {
- LOGMASKED(LOG_SPU_WRITES | LOG_ENVELOPES, "audio_ctrl_w: Envelope Interval %d (hi): %04x\n", offset == AUDIO_ENVCLK0_HIGH ? 0 : 1, data);
- const uint16_t old = m_audio_ctrl_regs[offset];
- m_audio_ctrl_regs[offset] = data;
- const uint16_t changed = old ^ m_audio_ctrl_regs[offset];
- if (!changed)
- break;
-
- const uint8_t channel_offset = offset == AUDIO_ENVCLK0_HIGH ? 0 : 8;
- for (uint8_t channel_bit = 0; channel_bit < 4; channel_bit++)
- {
- const uint8_t shift = channel_bit << 2;
- const uint16_t mask = 0x0f << shift;
- if (changed & mask)
- {
- m_envclk_frame[channel_bit + channel_offset + 4] = get_envclk_frame_count(channel_bit + channel_offset);
- }
- }
- break;
- }
-
- case AUDIO_ENV_RAMP_DOWN:
- {
- LOGMASKED(LOG_SPU_WRITES | LOG_RAMPDOWN, "audio_ctrl_w: Envelope Fast Ramp Down: %04x\n", data);
- const uint16_t old = m_audio_ctrl_regs[offset];
- m_audio_ctrl_regs[offset] = (data & AUDIO_ENV_RAMP_DOWN_MASK) & m_audio_ctrl_regs[AUDIO_CHANNEL_STATUS];
- const uint16_t changed = old ^ m_audio_ctrl_regs[offset];
- if (!changed)
- break;
-
- for (uint32_t channel_bit = 0; channel_bit < 16; channel_bit++)
- {
- const uint16_t mask = 1 << channel_bit;
- if ((changed & mask) && (data & mask))
- {
- m_rampdown_frame[channel_bit] = get_rampdown_frame_count(channel_bit);
- LOGMASKED(LOG_RAMPDOWN, "Preparing to ramp down channel %d in %d ticks\n", channel_bit, m_rampdown_frame[channel_bit] / 13);
- }
- }
- break;
- }
-
- case AUDIO_CHANNEL_STOP:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Channel Stop Status: %04x\n", data);
- m_audio_ctrl_regs[offset] &= ~data;
- break;
-
- case AUDIO_CHANNEL_ZERO_CROSS:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Channel Zero-Cross Enable: %04x\n", data);
- m_audio_ctrl_regs[offset] = data & AUDIO_CHANNEL_ZERO_CROSS_MASK;
- break;
-
- case AUDIO_CONTROL:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Control: %04x (SOFTCH:%d, COMPEN:%d, NOHIGH:%d, NOINT:%d, EQEN:%d, VOLSEL:%d)\n", data
- , (data & AUDIO_CONTROL_SOFTCH_MASK) ? 1 : 0
- , (data & AUDIO_CONTROL_COMPEN_MASK) ? 1 : 0
- , (data & AUDIO_CONTROL_NOHIGH_MASK) ? 1 : 0
- , (data & AUDIO_CONTROL_NOINT_MASK) ? 1 : 0
- , (data & AUDIO_CONTROL_EQEN_MASK) ? 1 : 0
- , (data & AUDIO_CONTROL_VOLSEL_MASK) >> AUDIO_CONTROL_VOLSEL_SHIFT);
- m_audio_ctrl_regs[offset] = data & AUDIO_CONTROL_MASK;
- break;
-
- case AUDIO_COMPRESS_CTRL:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Compressor Control: %04x\n", data);
- m_audio_ctrl_regs[offset] = data;
- break;
-
- case AUDIO_CHANNEL_STATUS:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Channel Status (read-only): %04x\n", data);
- break;
-
- case AUDIO_WAVE_IN_L:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Wave In (L) / FIFO Write Data: %04x\n", data);
- m_audio_ctrl_regs[offset] = data;
- break;
-
- case AUDIO_WAVE_IN_R:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Wave In (R) / Software Channel FIFO IRQ Control: %04x\n", data);
- m_audio_ctrl_regs[offset] = data;
- break;
-
- case AUDIO_WAVE_OUT_L:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Wave Out (L): %04x\n", data);
- m_audio_ctrl_regs[offset] = data;
- break;
-
- case AUDIO_WAVE_OUT_R:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Wave Out (R): %04x\n", data);
- m_audio_ctrl_regs[offset] = data;
- break;
-
- case AUDIO_CHANNEL_REPEAT:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Channel Repeat Enable: %04x\n", data);
- m_audio_ctrl_regs[offset] = data & AUDIO_CHANNEL_REPEAT_MASK;
- break;
-
- case AUDIO_CHANNEL_ENV_MODE:
- LOGMASKED(LOG_SPU_WRITES | LOG_ENVELOPES, "audio_ctrl_w: Channel Envelope Enable: %04x\n", data);
- m_audio_ctrl_regs[offset] = data & AUDIO_CHANNEL_ENV_MODE_MASK;
- break;
-
- case AUDIO_CHANNEL_TONE_RELEASE:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Channel Tone Release Enable: %04x\n", data);
- m_audio_ctrl_regs[offset] = data & AUDIO_CHANNEL_TONE_RELEASE_MASK;
- break;
-
- case AUDIO_CHANNEL_ENV_IRQ:
- LOGMASKED(LOG_SPU_WRITES | LOG_ENVELOPES, "audio_ctrl_w: Channel Envelope IRQ Acknowledge: %04x\n", data);
- m_audio_ctrl_regs[offset] &= ~data & AUDIO_CHANNEL_ENV_IRQ_MASK;
- break;
-
- case AUDIO_CHANNEL_PITCH_BEND:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Channel Pitch Bend Enable: %04x\n", data);
- m_audio_ctrl_regs[offset] = data & AUDIO_CHANNEL_PITCH_BEND_MASK;
- break;
-
- case AUDIO_SOFT_PHASE:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Software Channel Phase: %04x\n", data);
- m_audio_ctrl_regs[offset] = data;
- break;
-
- case AUDIO_ATTACK_RELEASE:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: Attack/Release Time Control: %04x\n", data);
- m_audio_ctrl_regs[offset] = data;
- break;
-
- case AUDIO_EQ_CUTOFF10:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: EQ Cutoff Frequency 0/1: %04x\n", data);
- m_audio_ctrl_regs[offset] = data & AUDIO_EQ_CUTOFF10_MASK;
- break;
-
- case AUDIO_EQ_CUTOFF32:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: EQ Cutoff Frequency 2/3: %04x\n", data);
- m_audio_ctrl_regs[offset] = data & AUDIO_EQ_CUTOFF32_MASK;
- break;
-
- case AUDIO_EQ_GAIN10:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: EQ Cutoff Gain 0/1: %04x\n", data);
- m_audio_ctrl_regs[offset] = data & AUDIO_EQ_GAIN10_MASK;
- break;
-
- case AUDIO_EQ_GAIN32:
- LOGMASKED(LOG_SPU_WRITES, "audio_ctrl_w: EQ Cutoff Gain 2/3: %04x\n", data);
- m_audio_ctrl_regs[offset] = data & AUDIO_EQ_GAIN32_MASK;
- break;
-
- default:
- m_audio_ctrl_regs[offset] = data;
- LOGMASKED(LOG_UNKNOWN_SPU, "audio_ctrl_w: Unknown register %04x = %04x\n", 0x3000 + offset, data);
- break;
- }
-}
-
-WRITE16_MEMBER(spg2xx_audio_device::audio_phase_w)
-{
- const uint16_t channel = (offset & 0x00f0) >> 4;
-
- switch (offset & AUDIO_CHAN_OFFSET_MASK)
- {
- case AUDIO_PHASE_HIGH:
- m_audio_phase_regs[offset] = data & AUDIO_PHASE_HIGH_MASK;
- m_channel_rate[channel] = ((double)get_phase(channel) * 140625.0 * 2.0) / (double)(1 << 19);
- m_channel_rate_accum[channel] = 0.0;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_phase_w: Channel %d: Phase High: %04x (rate: %f)\n", channel, data, m_channel_rate[channel]);
- break;
-
- case AUDIO_PHASE_ACCUM_HIGH:
- m_audio_phase_regs[offset] = data & AUDIO_PHASE_ACCUM_HIGH_MASK;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_phase_w: Channel %d: Phase Accum High: %04x\n", channel, data);
- break;
-
- case AUDIO_TARGET_PHASE_HIGH:
- m_audio_phase_regs[offset] = data & AUDIO_TARGET_PHASE_HIGH_MASK;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_phase_w: Channel %d: Target Phase High: %04x\n", channel, data);
- break;
-
- case AUDIO_RAMP_DOWN_CLOCK:
- m_audio_phase_regs[offset] = data & AUDIO_RAMP_DOWN_CLOCK_MASK;
- LOGMASKED(LOG_CHANNEL_WRITES | LOG_RAMPDOWN, "audio_phase_w: Channel %d: Rampdown Clock: %04x\n", channel, data);
- break;
-
- case AUDIO_PHASE:
- m_audio_phase_regs[offset] = data;
- m_channel_rate[channel] = ((double)get_phase(channel) * 140625.0 * 2.0) / (double)(1 << 19);
- m_channel_rate_accum[channel] = 0.0;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_phase_w: Channel %d: Phase: %04x (rate: %f)\n", channel, data, m_channel_rate[channel]);
- break;
-
- case AUDIO_PHASE_ACCUM:
- m_audio_phase_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_phase_w: Channel %d: Phase Accum: %04x\n", channel, data);
- break;
-
- case AUDIO_TARGET_PHASE:
- m_audio_phase_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_phase_w: Channel %d: Target Phase: %04x\n", channel, data);
- break;
-
- case AUDIO_PHASE_CTRL:
- m_audio_phase_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_phase_w: Channel %d: Phase Ctrl: %04x (TIMESTEP:%d, SIGN:%d, OFFSET:%03x\n", channel, data,
- get_phase_time_step(channel), get_phase_sign_bit(channel), get_phase_offset(channel));
- break;
-
- default:
- m_audio_phase_regs[offset] = data;
- LOGMASKED(LOG_UNKNOWN_SPU, "audio_phase_w: Unknown register %04x = %04x\n", 0x3000 + offset, data);
- break;
- }
-}
-
-
-WRITE16_MEMBER(spg2xx_audio_device::audio_w)
-{
- const uint16_t channel = (offset & 0x00f0) >> 4;
-
- switch (offset & AUDIO_CHAN_OFFSET_MASK)
- {
- case AUDIO_WAVE_ADDR:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Wave Addr (lo): %04x\n", channel, data);
- break;
-
- case AUDIO_MODE:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Mode: %04x (ADPCM:%d, 16M:%d, TONE:%d, LADDR_HI:%04x, WADDR_HI:%04x)\n", channel, data,
- get_adpcm_bit(channel), get_16bit_bit(channel), get_tone_mode(channel), get_loop_addr_high(channel), get_wave_addr_high(channel));
- break;
-
- case AUDIO_LOOP_ADDR:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Loop Addr: %04x\n", channel, data);
- break;
-
- case AUDIO_PAN_VOL:
- m_audio_regs[offset] = data & AUDIO_PAN_VOL_MASK;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Pan/Vol: %04x (PAN:%02x, VOL:%02x)\n", channel, data,
- get_pan(channel), get_volume(channel));
- break;
-
- case AUDIO_ENVELOPE0:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES | LOG_ENVELOPES, "audio_w: Channel %d: Envelope0: %04x (RPTPER:%d, TARGET:%02x, SIGN:%d, INC:%02x)\n", channel, data,
- get_repeat_period_bit(channel), get_envelope_target(channel), get_envelope_sign_bit(channel), get_envelope_inc(channel));
- break;
-
- case AUDIO_ENVELOPE_DATA:
- m_audio_regs[offset] = data & AUDIO_ENVELOPE_DATA_MASK;
- LOGMASKED(LOG_CHANNEL_WRITES | LOG_ENVELOPES, "audio_w: Channel %d: Envelope Data: %04x (CNT:%d, EDD:%02x)\n", channel, data,
- get_envelope_count(channel), get_edd(channel));
- break;
-
- case AUDIO_ENVELOPE1:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES | LOG_ENVELOPES, "audio_w: Channel %d: Envelope1 Data: %04x (RPTCNT:%02x, RPT:%d, LOAD:%02x)\n", channel, data,
- get_envelope_repeat_count(channel), get_envelope_repeat_bit(channel), get_envelope_load(channel));
- break;
-
- case AUDIO_ENVELOPE_ADDR_HIGH:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES | LOG_ENVELOPES, "audio_w: Channel %d: Envelope Addr (hi): %04x (IRQADDR:%03x, IRQEN:%d, EADDR_HI:%02x)\n", channel, data,
- get_audio_irq_addr(channel), get_audio_irq_enable_bit(channel), get_envelope_addr_high(channel));
- break;
-
- case AUDIO_ENVELOPE_ADDR:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES | LOG_ENVELOPES, "audio_w: Channel %d: Envelope Addr (lo): %04x\n", channel, data);
- break;
-
- case AUDIO_WAVE_DATA_PREV:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Wave Data Prev: %04x \n", channel, data);
- break;
-
- case AUDIO_ENVELOPE_LOOP_CTRL:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES | LOG_ENVELOPES, "audio_w: Channel %d: Envelope Loop Ctrl: %04x (RDOFFS:%02x, EAOFFS:%03x)\n", channel, data,
- get_rampdown_offset(channel), get_envelope_eaoffset(channel));
- break;
-
- case AUDIO_WAVE_DATA:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: Wave Data: %04x\n", channel, data);
- break;
-
- case AUDIO_ADPCM_SEL:
- m_audio_regs[offset] = data & AUDIO_ADPCM_SEL_MASK;
- LOGMASKED(LOG_CHANNEL_WRITES, "audio_w: Channel %d: ADPCM Sel: %04x (ADPCM36:%d, POINTNUM:%02x\n", channel, data,
- get_adpcm36_bit(channel), get_point_number(channel));
- break;
-
- default:
- m_audio_regs[offset] = data;
- LOGMASKED(LOG_UNKNOWN_SPU, "audio_w: Unknown register %04x = %04x\n", 0x3000 + offset, data);
- break;
-
- }
-}
-
-void spg2xx_audio_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples)
-{
- stream_sample_t *out_l = outputs[0];
- stream_sample_t *out_r = outputs[1];
-
- for (int i = 0; i < samples; i++)
- {
- int32_t left_total = 0;
- int32_t right_total = 0;
-
- for (uint32_t channel = 0; channel < 16; channel++)
- {
- if (!get_channel_status(channel))
- {
- continue;
- }
-
- if (SPG_DEBUG_AUDIO && m_debug_rates)
- printf("%f:%f ", m_channel_rate[channel], m_channel_rate_accum[channel]);
- bool playing = advance_channel(channel);
- if (playing)
- {
- int32_t sample = (int16_t)(m_audio_regs[(channel << 4) | AUDIO_WAVE_DATA] ^ 0x8000);
- if (!(m_audio_ctrl_regs[AUDIO_CONTROL] & AUDIO_CONTROL_NOINT_MASK))
- {
- int32_t prev_sample = (int16_t)(m_audio_regs[(channel << 4) | AUDIO_WAVE_DATA_PREV] ^ 0x8000);
- int16_t lerp_factor = (int16_t)((m_channel_rate_accum[channel] / 70312.5) * 256.0);
- prev_sample = (prev_sample * (0x100 - lerp_factor)) >> 8;
- sample = (sample * lerp_factor) >> 8;
- sample += prev_sample;
- }
-
- sample = (sample * (int32_t)get_edd(channel)) >> 7;
-
- int32_t vol = get_volume(channel);
- int32_t pan = get_pan(channel);
-
- int32_t pan_left, pan_right;
- if (pan < 0x40)
- {
- pan_left = 0x7f * vol;
- pan_right = pan * 2 * vol;
- }
- else
- {
- pan_left = (0x7f - pan) * 2 * vol;
- pan_right = 0x7f * vol;
- }
-
- left_total += ((int16_t)sample * (int16_t)pan_left) >> 14;
- right_total += ((int16_t)sample * (int16_t)pan_right) >> 14;
-
- const uint16_t mask = (1 << channel);
- if (m_audio_ctrl_regs[AUDIO_ENV_RAMP_DOWN] & mask)
- {
- if (m_rampdown_frame[channel] == 0)
- {
- LOGMASKED(LOG_RAMPDOWN, "Ticking rampdown for channel %d\n", channel);
- audio_rampdown_tick(channel);
- }
- m_rampdown_frame[channel]--;
- }
- else if (!(m_audio_ctrl_regs[AUDIO_CHANNEL_ENV_MODE] & mask))
- {
- if (m_envclk_frame[channel] == 0)
- {
- LOGMASKED(LOG_ENVELOPES, "Ticking envelope for channel %d\n", channel);
- audio_envelope_tick(channel);
- m_envclk_frame[channel] = get_envclk_frame_count(channel);
- }
- m_envclk_frame[channel]--;
- }
- }
- }
-
- switch (get_vol_sel())
- {
- case 0: // 1/16
- left_total >>= 4;
- right_total >>= 4;
- break;
- case 1: // 1/4
- case 2: // 1
- case 3: // 2 // Both x1 and x2 clip like mad even with only 6 voices. Hack it for now.
- left_total >>= 2;
- right_total >>= 2;
- break;
- }
- *out_l++ = (left_total * (int16_t)m_audio_ctrl_regs[AUDIO_MAIN_VOLUME]) >> 7;
- *out_r++ = (right_total * (int16_t)m_audio_ctrl_regs[AUDIO_MAIN_VOLUME]) >> 7;
- }
-}
-
-inline void spg2xx_audio_device::stop_channel(const uint32_t channel)
-{
- // TODO: IRQs
- m_audio_ctrl_regs[AUDIO_CHANNEL_ENABLE] &= ~(1 << channel);
- m_audio_ctrl_regs[AUDIO_CHANNEL_STATUS] &= ~(1 << channel);
- m_audio_regs[(channel << 4) | AUDIO_MODE] &= ~AUDIO_ADPCM_MASK;
- m_audio_ctrl_regs[AUDIO_CHANNEL_TONE_RELEASE] &= ~(1 << channel);
- m_audio_ctrl_regs[AUDIO_ENV_RAMP_DOWN] &= ~(1 << channel);
-}
-
-bool spg2xx_audio_device::advance_channel(const uint32_t channel)
-{
- m_channel_rate_accum[channel] += m_channel_rate[channel];
- uint32_t samples_to_advance = 0;
- while (m_channel_rate_accum[channel] >= 70312.5)
- {
- m_channel_rate_accum[channel] -= 70312.5;
- samples_to_advance++;
- }
-
- if (!samples_to_advance)
- return true;
-
- bool playing = true;
-
- for (uint32_t sample = 0; sample < samples_to_advance; sample++)
- {
- playing = fetch_sample(channel);
- if (!playing)
- break;
-
- if (get_adpcm_bit(channel))
- {
- // ADPCM mode
- m_sample_shift[channel] += 4;
- if (m_sample_shift[channel] >= 16)
- {
- m_sample_shift[channel] = 0;
- m_sample_addr[channel]++;
- }
- }
- else if (get_16bit_bit(channel))
- {
- // 16-bit mode
- m_sample_addr[channel]++;
- }
- else
- {
- // 8-bit mode
- m_sample_shift[channel] += 8;
- if (m_sample_shift[channel] >= 16)
- {
- m_sample_shift[channel] = 0;
- m_sample_addr[channel]++;
- }
- }
- }
-
- return playing;
-}
-
-uint16_t spg2xx_audio_device::read_space(offs_t offset)
-{
- return m_space_read_cb(offset);
-}
-
-bool spg2xx_audio_device::fetch_sample(const uint32_t channel)
-{
- const uint32_t channel_mask = channel << 4;
- m_audio_regs[channel_mask | AUDIO_WAVE_DATA_PREV] = m_audio_regs[channel_mask | AUDIO_WAVE_DATA];
-
- const uint32_t wave_data_reg = channel_mask | AUDIO_WAVE_DATA;
- const uint16_t tone_mode = get_tone_mode(channel);
- uint16_t raw_sample = tone_mode ? read_space(m_sample_addr[channel]) : m_audio_regs[wave_data_reg];
-
- LOGMASKED(LOG_SAMPLES, "Channel %d: Raw sample %04x\n", channel, raw_sample);
-
- if (get_adpcm_bit(channel))
- {
- // ADPCM mode
- if (tone_mode != 0 && raw_sample == 0xffff)
- {
- if (tone_mode == AUDIO_TONE_MODE_HW_ONESHOT)
- {
- LOGMASKED(LOG_SAMPLES, "ADPCM stopped after %d samples\n", m_sample_count[channel]);
- m_sample_count[channel] = 0;
- stop_channel(channel);
- return false;
- }
- else
- {
- LOGMASKED(LOG_SAMPLES, "ADPCM looping after %d samples\n", m_sample_count[channel]);
- m_sample_count[channel] = 0;
- loop_channel(channel);
- m_audio_regs[(channel << 4) | AUDIO_MODE] &= ~AUDIO_ADPCM_MASK;
- }
- }
- else
- {
- m_audio_regs[wave_data_reg] = raw_sample;
- m_audio_regs[wave_data_reg] >>= m_sample_shift[channel];
- const uint8_t adpcm_sample = (uint8_t)(m_audio_regs[wave_data_reg] & 0x000f);
- m_audio_regs[wave_data_reg] = (uint16_t)(m_adpcm[channel].clock(adpcm_sample) << 4) ^ 0x8000;
- }
- m_sample_count[channel]++;
- }
- else if (get_16bit_bit(channel))
- {
- // 16-bit mode
- if (tone_mode != 0 && raw_sample == 0xffff)
- {
- if (tone_mode == AUDIO_TONE_MODE_HW_ONESHOT)
- {
- LOGMASKED(LOG_SAMPLES, "16-bit PCM stopped after %d samples\n", m_sample_count[channel]);
- m_sample_count[channel] = 0;
- stop_channel(channel);
- return false;
- }
- else
- {
- LOGMASKED(LOG_SAMPLES, "16-bit PCM looping after %d samples\n", m_sample_count[channel]);
- m_sample_count[channel] = 0;
- loop_channel(channel);
- }
- }
- else
- {
- m_audio_regs[wave_data_reg] = raw_sample;
- }
- m_sample_count[channel]++;
- }
- else
- {
- // 8-bit mode
- LOGMASKED(LOG_SAMPLES, "Channel %d: Processing as 8-bit sample, tone_mode is %d, sample_shift is %d\n", channel, tone_mode, m_sample_shift[channel]);
- if (tone_mode != 0)
- {
- if (m_sample_shift[channel])
- raw_sample &= 0xff00;
- else
- raw_sample <<= 8;
- raw_sample |= raw_sample >> 8;
-
- if (raw_sample == 0xffff)
- {
- if (tone_mode == AUDIO_TONE_MODE_HW_ONESHOT)
- {
- LOGMASKED(LOG_SAMPLES, "Channel %d: 8-bit PCM stopped after %d samples\n", channel, m_sample_count[channel]);
- m_sample_count[channel] = 0;
- stop_channel(channel);
- return false;
- }
- else
- {
- LOGMASKED(LOG_SAMPLES, "Channel %d: 8-bit PCM looping after %d samples\n", channel, m_sample_count[channel]);
- m_sample_count[channel] = 0;
- loop_channel(channel);
- }
- }
- else
- {
- m_audio_regs[wave_data_reg] = raw_sample;
- }
- }
- m_sample_count[channel]++;
- }
-
- return true;
-}
-
-inline void spg2xx_audio_device::loop_channel(const uint32_t channel)
-{
- m_sample_addr[channel] = get_loop_addr(channel);
- m_sample_shift[channel] = 0;
- LOGMASKED(LOG_SAMPLES, "Channel %d: Looping to address %08x\n", channel, m_sample_addr[channel]);
-}
-
-void spg2xx_audio_device::audio_beat_tick()
-{
- if (m_audio_curr_beat_base_count == 0)
- {
- LOGMASKED(LOG_BEAT, "Beat base count elapsed, reloading with %d\n", m_audio_ctrl_regs[AUDIO_BEAT_BASE_COUNT]);
- m_audio_curr_beat_base_count = m_audio_ctrl_regs[AUDIO_BEAT_BASE_COUNT];
-
- uint16_t beat_count = m_audio_ctrl_regs[AUDIO_BEAT_COUNT] & AUDIO_BEAT_COUNT_MASK;
- if (beat_count == 0)
- {
- if (m_audio_ctrl_regs[AUDIO_BEAT_COUNT] & AUDIO_BIE_MASK)
- {
- LOGMASKED(LOG_BEAT, "Beat count elapsed, setting Status bit and checking IRQs\n");
- m_audio_ctrl_regs[AUDIO_BEAT_COUNT] |= AUDIO_BIS_MASK;
- check_irqs(AUDIO_BIS_MASK);
- }
- else
- {
- LOGMASKED(LOG_BEAT, "Beat count elapsed but IRQ not enabled\n");
- }
- }
- else
- {
- beat_count--;
- m_audio_ctrl_regs[AUDIO_BEAT_COUNT] = (m_audio_ctrl_regs[AUDIO_BEAT_COUNT] & ~AUDIO_BEAT_COUNT_MASK) | beat_count;
- }
- }
- m_audio_curr_beat_base_count--;
-}
-
-void spg2xx_audio_device::audio_rampdown_tick(const uint32_t channel)
-{
- const uint8_t old_edd = get_edd(channel);
- uint8_t new_edd = old_edd - get_rampdown_offset(channel);
- if (new_edd > old_edd)
- new_edd = 0;
-
- if (new_edd)
- {
- LOGMASKED(LOG_RAMPDOWN, "Channel %d preparing for next rampdown step (%02x)\n", channel, new_edd);
- const uint16_t channel_mask = channel << 4;
- m_audio_regs[channel_mask | AUDIO_ENVELOPE_DATA] &= ~AUDIO_EDD_MASK;
- m_audio_regs[channel_mask | AUDIO_ENVELOPE_DATA] |= new_edd & AUDIO_EDD_MASK;
- m_rampdown_frame[channel] = get_rampdown_frame_count(channel);
- }
- else
- {
- LOGMASKED(LOG_RAMPDOWN, "Stopping channel %d due to rampdown\n", channel);
- const uint16_t channel_mask = 1 << channel;
- m_audio_ctrl_regs[AUDIO_CHANNEL_ENABLE] &= ~channel_mask;
- m_audio_ctrl_regs[AUDIO_CHANNEL_STATUS] &= ~channel_mask;
- m_audio_ctrl_regs[AUDIO_CHANNEL_STOP] |= channel_mask;
- m_audio_ctrl_regs[AUDIO_ENV_RAMP_DOWN] &= ~channel_mask;
- m_audio_ctrl_regs[AUDIO_CHANNEL_TONE_RELEASE] &= ~channel_mask;
- }
-}
-
-const uint32_t spg2xx_audio_device::s_rampdown_frame_counts[8] =
-{
- 13*4, 13*16, 13*64, 13*256, 13*1024, 13*4096, 13*8192, 13*8192
-};
-
-uint32_t spg2xx_audio_device::get_rampdown_frame_count(const uint32_t channel)
-{
- return s_rampdown_frame_counts[get_rampdown_clock(channel)];
-}
-
-const uint32_t spg2xx_audio_device::s_envclk_frame_counts[16] =
-{
- 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 8192, 8192, 8192, 8192
-};
-
-uint32_t spg2xx_audio_device::get_envclk_frame_count(const uint32_t channel)
-{
- return s_envclk_frame_counts[get_envelope_clock(channel)];
-}
-
-uint32_t spg2xx_audio_device::get_envelope_clock(const offs_t channel) const
-{
- if (channel < 4)
- return (m_audio_ctrl_regs[AUDIO_ENVCLK0] >> (channel << 2)) & 0x000f;
- else if (channel < 8)
- return (m_audio_ctrl_regs[AUDIO_ENVCLK0_HIGH] >> ((channel - 4) << 2)) & 0x000f;
- else if (channel < 12)
- return (m_audio_ctrl_regs[AUDIO_ENVCLK1] >> ((channel - 8) << 2)) & 0x000f;
- else
- return (m_audio_ctrl_regs[AUDIO_ENVCLK1_HIGH] >> ((channel - 12) << 2)) & 0x000f;
-}
-
-bool spg2xx_audio_device::audio_envelope_tick(const uint32_t channel)
-{
- const uint16_t channel_mask = channel << 4;
- uint16_t new_count = get_envelope_count(channel);
- const uint16_t curr_edd = get_edd(channel);
- LOGMASKED(LOG_ENVELOPES, "envelope %d tick, count is %04x, curr edd is %04x\n", channel, new_count, curr_edd);
- bool edd_changed = false;
- if (new_count == 0)
- {
- const uint16_t target = get_envelope_target(channel);
- uint16_t new_edd = curr_edd;
- const uint16_t inc = get_envelope_inc(channel);
-
- if (new_edd != target)
- {
- if (get_envelope_sign_bit(channel))
- {
- new_edd -= inc;
- LOGMASKED(LOG_ENVELOPES, "Envelope %d new EDD-: %04x (%04x), dec %04x\n", channel, new_edd, target, inc);
- if (new_edd > curr_edd)
- new_edd = 0;
- else if (new_edd < target)
- new_edd = target;
-
- if (new_edd == 0)
- {
- LOGMASKED(LOG_ENVELOPES, "Envelope %d at 0, stopping channel\n", channel);
- stop_channel(channel);
- return true;
- }
- }
- else
- {
- new_edd += inc;
- LOGMASKED(LOG_ENVELOPES, "Envelope %d new EDD+: %04x (%04x), inc %04x\n", channel, new_edd, target, inc);
- if (new_edd >= target)
- new_edd = target;
- }
- }
-
- if (new_edd == target)
- {
- LOGMASKED(LOG_ENVELOPES, "Envelope %d at target %04x\n", channel, target);
- new_edd = target;
-
- if (get_envelope_repeat_bit(channel))
- {
- const uint16_t repeat_count = get_envelope_repeat_count(channel) - 1;
- LOGMASKED(LOG_ENVELOPES, "Repeating envelope, new repeat count %d\n", repeat_count);
- if (repeat_count == 0)
- {
- m_audio_regs[channel_mask | AUDIO_ENVELOPE0] = read_space(m_envelope_addr[channel]);
- m_audio_regs[channel_mask | AUDIO_ENVELOPE1] = read_space(m_envelope_addr[channel] + 1);
- m_audio_regs[channel_mask | AUDIO_ENVELOPE_LOOP_CTRL] = read_space(m_envelope_addr[channel] + 2);
- m_envelope_addr[channel] = get_envelope_addr(channel) + get_envelope_eaoffset(channel);
- LOGMASKED(LOG_ENVELOPES, "Envelope data after repeat: %04x %04x %04x (%08x)\n", m_audio_regs[channel_mask | AUDIO_ENVELOPE0], m_audio_regs[channel_mask | AUDIO_ENVELOPE1], m_audio_regs[channel_mask | AUDIO_ENVELOPE_LOOP_CTRL], m_envelope_addr[channel]);
- }
- else
- {
- set_envelope_repeat_count(channel, repeat_count);
- }
- }
- else
- {
- LOGMASKED(LOG_ENVELOPES, "Fetching envelope for channel %d from %08x\n", channel, m_envelope_addr[channel]);
- m_audio_regs[channel_mask | AUDIO_ENVELOPE0] = read_space(m_envelope_addr[channel]);
- m_audio_regs[channel_mask | AUDIO_ENVELOPE1] = read_space(m_envelope_addr[channel] + 1);
- LOGMASKED(LOG_ENVELOPES, "Fetched envelopes %04x %04x\n", m_audio_regs[channel_mask | AUDIO_ENVELOPE0], m_audio_regs[channel_mask | AUDIO_ENVELOPE1]);
- m_envelope_addr[channel] += 2;
- }
- new_count = get_envelope_load(channel);
- set_envelope_count(channel, new_count);
- }
- else
- {
- LOGMASKED(LOG_ENVELOPES, "Envelope %d not yet at target %04x (%04x)\n", channel, target, new_edd);
- new_count = get_envelope_load(channel);
- set_envelope_count(channel, new_count);
- }
- LOGMASKED(LOG_ENVELOPES, "Envelope %d new count %04x\n", channel, new_count);
-
- set_edd(channel, new_edd);
- edd_changed = true;
- LOGMASKED(LOG_ENVELOPES, "Setting channel %d edd to %04x, register is %04x\n", channel, new_edd, m_audio_regs[(channel << 4) | AUDIO_ENVELOPE_DATA]);
- }
- else
- {
- new_count--;
- set_envelope_count(channel, new_count);
- }
- LOGMASKED(LOG_ENVELOPES, "envelope %d post-tick, count is now %04x, register is %04x\n", channel, new_count, m_audio_regs[(channel << 4) | AUDIO_ENVELOPE_DATA]);
- return edd_changed;
-}