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Diffstat (limited to 'src/devices/sound/8950intf.cpp')
-rw-r--r-- | src/devices/sound/8950intf.cpp | 173 |
1 files changed, 0 insertions, 173 deletions
diff --git a/src/devices/sound/8950intf.cpp b/src/devices/sound/8950intf.cpp deleted file mode 100644 index af981b756be..00000000000 --- a/src/devices/sound/8950intf.cpp +++ /dev/null @@ -1,173 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Ernesto Corvi -/****************************************************************************** -* FILE -* Yamaha 3812 emulator interface - MAME VERSION -* -* CREATED BY -* Ernesto Corvi -* -* UPDATE LOG -* JB 28-04-2002 Fixed simultaneous usage of all three different chip types. -* Used real sample rate when resample filter is active. -* AAT 12-28-2001 Protected Y8950 from accessing unmapped port and keyboard handlers. -* CHS 1999-01-09 Fixes new ym3812 emulation interface. -* CHS 1998-10-23 Mame streaming sound chip update -* EC 1998 Created Interface -* -* NOTES -* -******************************************************************************/ -#include "emu.h" -#include "8950intf.h" -#include "fmopl.h" - - -void y8950_device::irq_handler(int irq) -{ - m_irq_handler(irq); -} - -void y8950_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) -{ - switch(id) - { - case 0: - y8950_timer_over(m_chip,0); - break; - - case 1: - y8950_timer_over(m_chip,1); - break; - } -} - -void y8950_device::timer_handler(int c, const attotime &period) -{ - if( period == attotime::zero ) - { /* Reset FM Timer */ - m_timer[c]->enable(false); - } - else - { /* Start FM Timer */ - m_timer[c]->adjust(period); - } -} - - -//------------------------------------------------- -// sound_stream_update - handle a stream update -//------------------------------------------------- - -void y8950_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) -{ - y8950_update_one(m_chip, outputs[0], samples); -} - - -//------------------------------------------------- -// device_start - device-specific startup -//------------------------------------------------- - -void y8950_device::device_start() -{ - int rate = clock()/72; - - m_irq_handler.resolve_safe(); - m_keyboard_read_handler.resolve_safe(0); - m_keyboard_write_handler.resolve_safe(); - m_io_read_handler.resolve_safe(0); - m_io_write_handler.resolve_safe(); - - /* stream system initialize */ - m_chip = y8950_init(this,clock(),rate); - if (!m_chip) - throw emu_fatalerror("y8950_device(%s): Error creating Y8950 chip", tag()); - - /* ADPCM ROM data */ - y8950_set_delta_t_memory(m_chip, &y8950_device::static_read_byte, &y8950_device::static_write_byte); - - m_stream = machine().sound().stream_alloc(*this,0,1,rate); - /* port and keyboard handler */ - y8950_set_port_handler(m_chip, &y8950_device::static_port_handler_w, &y8950_device::static_port_handler_r, this); - y8950_set_keyboard_handler(m_chip, &y8950_device::static_keyboard_handler_w, &y8950_device::static_keyboard_handler_r, this); - - /* Y8950 setup */ - y8950_set_timer_handler (m_chip, &y8950_device::static_timer_handler, this); - y8950_set_irq_handler (m_chip, &y8950_device::static_irq_handler, this); - y8950_set_update_handler(m_chip, &y8950_device::static_update_request, this); - - m_timer[0] = timer_alloc(0); - m_timer[1] = timer_alloc(1); -} - -//------------------------------------------------- -// device_clock_changed -//------------------------------------------------- - -void y8950_device::device_clock_changed() -{ - m_stream->set_sample_rate(clock() / 72); - y8950_clock_changed(m_chip, clock(), clock() / 72); -} - -//------------------------------------------------- -// device_stop - device-specific stop -//------------------------------------------------- - -void y8950_device::device_stop() -{ - y8950_shutdown(m_chip); -} - -//------------------------------------------------- -// device_reset - device-specific reset -//------------------------------------------------- - -void y8950_device::device_reset() -{ - y8950_reset_chip(m_chip); -} - -//------------------------------------------------- -// rom_bank_updated -//------------------------------------------------- - -void y8950_device::rom_bank_updated() -{ - m_stream->update(); -} - - -u8 y8950_device::read(offs_t offset) -{ - return y8950_read(m_chip, offset & 1); -} - -void y8950_device::write(offs_t offset, u8 data) -{ - y8950_write(m_chip, offset & 1, data); -} - -u8 y8950_device::status_port_r() { return read(0); } -u8 y8950_device::read_port_r() { return read(1); } -void y8950_device::control_port_w(u8 data) { write(0, data); } -void y8950_device::write_port_w(u8 data) { write(1, data); } - - -DEFINE_DEVICE_TYPE(Y8950, y8950_device, "y8950", "Y8950 MSX-Audio") - -y8950_device::y8950_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) - : device_t(mconfig, Y8950, tag, owner, clock) - , device_sound_interface(mconfig, *this) - , device_rom_interface(mconfig, *this, 21) - , m_stream(nullptr) - , m_timer{ nullptr, nullptr } - , m_chip(nullptr) - , m_irq_handler(*this) - , m_keyboard_read_handler(*this) - , m_keyboard_write_handler(*this) - , m_io_read_handler(*this) - , m_io_write_handler(*this) -{ -} |