diff options
Diffstat (limited to 'src/mame/audio/elan_eu3a05.cpp')
-rw-r--r-- | src/mame/audio/elan_eu3a05.cpp | 129 |
1 files changed, 37 insertions, 92 deletions
diff --git a/src/mame/audio/elan_eu3a05.cpp b/src/mame/audio/elan_eu3a05.cpp index b80258f32f0..9d4d3bc5f89 100644 --- a/src/mame/audio/elan_eu3a05.cpp +++ b/src/mame/audio/elan_eu3a05.cpp @@ -19,12 +19,38 @@ DEFINE_DEVICE_TYPE(ELAN_EU3A05_SOUND, elan_eu3a05_sound_device, "elan_eu3a05soun elan_eu3a05_sound_device::elan_eu3a05_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, ELAN_EU3A05_SOUND, tag, owner, clock), device_sound_interface(mconfig, *this), + device_memory_interface(mconfig, *this), + m_space_config("regs", ENDIANNESS_NATIVE, 8, 6, 0, address_map_constructor(FUNC(elan_eu3a05_sound_device::map), this)), m_stream(nullptr), m_space_read_cb(*this), m_sound_end_cb{ { *this }, { *this }, { *this }, { *this }, { *this }, { *this } } { } +device_memory_interface::space_config_vector elan_eu3a05_sound_device::memory_space_config() const +{ + return space_config_vector { + std::make_pair(0, &m_space_config) + }; +} + +void elan_eu3a05_sound_device::map(address_map &map) +{ + map(0x00, 0x3f).rw(FUNC(elan_eu3a05_sound_device::read_unmapped), FUNC(elan_eu3a05_sound_device::write_unmapped)); + + map(0x00, 0x11).rw(FUNC(elan_eu3a05_sound_device::elan_eu3a05_sound_addr_r), FUNC(elan_eu3a05_sound_device::elan_eu3a05_sound_addr_w)); // 6 * 24-bit (3 byte) channel addresses + map(0x12, 0x23).rw(FUNC(elan_eu3a05_sound_device::elan_eu3a05_sound_size_r), FUNC(elan_eu3a05_sound_device::elan_eu3a05_sound_size_w)); // 6 * 24-bit (3 byte) channel lengths + map(0x24, 0x24).rw(FUNC(elan_eu3a05_sound_device::reg50a4_r), FUNC(elan_eu3a05_sound_device::reg50a4_w)); // unknown TODO + map(0x25, 0x25).rw(FUNC(elan_eu3a05_sound_device::elan_eu3a05_sound_trigger_r), FUNC(elan_eu3a05_sound_device::elan_eu3a05_sound_trigger_w)); + map(0x26, 0x27).rw(FUNC(elan_eu3a05_sound_device::elan_eu3a05_sound_volume_r), FUNC(elan_eu3a05_sound_device::elan_eu3a05_sound_volume_w)); // 0x26 = volume channels 0,1,2,3 0x27 = volume channels 5,6 (lunar rescue sets 0x03 0x00 and just uses a single channel) + map(0x28, 0x28).r(FUNC(elan_eu3a05_sound_device::elan_eu3a05_50a8_r)); // stopped status? (read only?) + map(0x29, 0x29).rw(FUNC(elan_eu3a05_sound_device::reg50a9_r), FUNC(elan_eu3a05_sound_device::reg50a9_w)); // IRQ mask? + + // no other reads/writes seen? +} + + + void elan_eu3a05_sound_device::device_start() { m_space_read_cb.resolve_safe(0); @@ -40,7 +66,7 @@ void elan_eu3a05_sound_device::device_start() save_item(NAME(m_sound_trigger)); save_item(NAME(m_sound_unk)); save_item(NAME(m_volumes)); - save_item(NAME(m_5024)); + save_item(NAME(m_50a4)); save_item(NAME(m_50a9)); } @@ -61,7 +87,7 @@ void elan_eu3a05_sound_device::device_reset() m_volumes[0] = 0xff; m_volumes[1] = 0x0f; - m_5024 = 0x00; + m_50a4 = 0x00; m_50a9 = 0x00; } @@ -104,7 +130,9 @@ void elan_eu3a05_sound_device::sound_stream_update(sound_stream &stream, stream_ m_sound_current_nib_pos[channel] = 0; m_isstopped |= (1 << channel); - m_sound_end_cb[channel](1); // generate interrupt based on which channel just stopped? + // maybe, seems to match the system IRQ mask when the sound interrupts are enabled? + if (m_50a9 & (1 << channel)) + m_sound_end_cb[channel](1); // generate interrupt based on which channel just stopped? } } else @@ -310,96 +338,13 @@ WRITE8_MEMBER(elan_eu3a05_sound_device::elan_eu3a05_sound_volume_w) m_volumes[offset] = data; } -WRITE8_MEMBER(elan_eu3a05_sound_device::write) +READ8_MEMBER(elan_eu3a05_sound_device::read_unmapped) { - switch (offset) - { - case 0x00: case 0x01: case 0x02: // channel 0 address - case 0x03: case 0x04: case 0x05: // channel 1 address - case 0x06: case 0x07: case 0x08: // channel 2 address - case 0x09: case 0x0a: case 0x0b: // channel 3 address - case 0x0c: case 0x0d: case 0x0e: // channel 4 address - case 0x0f: case 0x10: case 0x11: // channel 5 address - elan_eu3a05_sound_addr_w(space, offset, data); - break; - - case 0x12: case 0x13: case 0x14: // channel 0 length - case 0x15: case 0x16: case 0x17: // channel 1 length - case 0x18: case 0x19: case 0x1a: // channel 2 length - case 0x1b: case 0x1c: case 0x1d: // channel 3 length - case 0x1e: case 0x1f: case 0x20: // channel 4 length - case 0x21: case 0x22: case 0x23: // channel 5 length - elan_eu3a05_sound_size_w(space, offset - 0x12, data); - break; - - case 0x24: // unk - m_5024 = data; - break; - - case 0x25: // trigger - elan_eu3a05_sound_trigger_w(space, offset - 0x25, data); - break; - - case 0x26: // volume channels 0,1,2,3 ? (lunar rescue sets 0x03 here and 0x00 below and just uses a single channel) - case 0x27: // volume channels 5,6 ? - elan_eu3a05_sound_volume_w(space, offset - 0x26, data); - break; - - case 0x28: // stopped status? - LOGMASKED( LOG_AUDIO, "%s: write to stop state register? %02x\n", machine().describe_context(), data); - break; - - case 0x29: // interrupt enable? or looping? - m_50a9 = data; - break; - } + logerror("%s: elan_eu3a05_sound_device::read_unmapped (offset %02x)\n", machine().describe_context(), offset); + return 0x00; } -READ8_MEMBER(elan_eu3a05_sound_device::read) +WRITE8_MEMBER(elan_eu3a05_sound_device::write_unmapped) { - uint8_t ret = 0x00; - - switch (offset) - { - case 0x00: case 0x01: case 0x02: // channel 0 address - case 0x03: case 0x04: case 0x05: // channel 1 address - case 0x06: case 0x07: case 0x08: // channel 2 address - case 0x09: case 0x0a: case 0x0b: // channel 3 address - case 0x0c: case 0x0d: case 0x0e: // channel 4 address - case 0x0f: case 0x10: case 0x11: // channel 5 address - ret = elan_eu3a05_sound_addr_r(space, offset); - break; - - case 0x12: case 0x13: case 0x14: // channel 0 length - case 0x15: case 0x16: case 0x17: // channel 1 length - case 0x18: case 0x19: case 0x1a: // channel 2 length - case 0x1b: case 0x1c: case 0x1d: // channel 3 length - case 0x1e: case 0x1f: case 0x20: // channel 4 length - case 0x21: case 0x22: case 0x23: // channel 5 length - ret = elan_eu3a05_sound_size_r(space, offset - 0x12); - break; - - case 0x24: // unk - ret = m_5024; - break; - - case 0x25: // trigger - ret = elan_eu3a05_sound_trigger_r(space, offset - 0x25); - break; - - case 0x26: // volume channels 0,1,2,3 ? - case 0x27: // volume channels 5,6 ? - ret = elan_eu3a05_sound_volume_r(space, offset - 0x26); - break; - - case 0x28: // stopped status? - ret = elan_eu3a05_50a8_r(space, offset - 0x28); - break; - - case 0x29: // interrupt enable? or looping? - ret = m_50a9; - break; - } - - return ret; -}
\ No newline at end of file + logerror("%s: elan_eu3a05_sound_device::write_unmapped (offset %02x) (data %02x)\n", machine().describe_context(), offset, data); +} |