diff options
Diffstat (limited to 'src/devices/sound/2612intf.cpp')
-rw-r--r-- | src/devices/sound/2612intf.cpp | 167 |
1 files changed, 0 insertions, 167 deletions
diff --git a/src/devices/sound/2612intf.cpp b/src/devices/sound/2612intf.cpp deleted file mode 100644 index 484d15dde14..00000000000 --- a/src/devices/sound/2612intf.cpp +++ /dev/null @@ -1,167 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Ernesto Corvi -/*************************************************************************** - - 2612intf.c - - The YM2612 emulator supports up to 2 chips. - Each chip has the following connections: - - Status Read / Control Write A - - Port Read / Data Write A - - Control Write B - - Data Write B - -***************************************************************************/ - -#include "emu.h" -#include "2612intf.h" -#include "fm.h" - -/*------------------------- YM2612 -------------------------------*/ -/* IRQ Handler */ -void ym2612_device::irq_handler(int irq) -{ - if (!m_irq_handler.isnull()) - m_irq_handler(irq); -} - -/* Timer overflow callback from timer.c */ -void ym2612_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) -{ - switch(id) - { - case 0: - ym2612_timer_over(m_chip,0); - break; - - case 1: - ym2612_timer_over(m_chip,1); - break; - } -} - -void ym2612_device::timer_handler(int c,int count,int clock) -{ - if( count == 0 || clock == 0 ) - { /* Reset FM Timer */ - m_timer[c]->enable(false); - } - else - { /* Start FM Timer */ - attotime period = attotime::from_hz(clock) * count; - - if (!m_timer[c]->enable(true)) - m_timer[c]->adjust(period); - } -} - -//------------------------------------------------- -// sound_stream_update - handle a stream update -//------------------------------------------------- - -void ym2612_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) -{ - ym2612_update_one(m_chip, outputs, samples); -} - - -void ym2612_device::device_post_load() -{ - ym2612_postload(m_chip); -} - - -//------------------------------------------------- -// device_start - device-specific startup -//------------------------------------------------- - -void ym2612_device::device_start() -{ - int rate = clock()/72; - - m_irq_handler.resolve(); - - /* FM init */ - /* Timer Handler set */ - m_timer[0] = timer_alloc(0); - m_timer[1] = timer_alloc(1); - - /* stream system initialize */ - m_stream = machine().sound().stream_alloc(*this,0,2,rate); - - /**** initialize YM2612 ****/ - m_chip = ym2612_init(this,clock(),rate,&ym2612_device::static_timer_handler,&ym2612_device::static_irq_handler); - if (!m_chip) - throw emu_fatalerror("ym2612_device(%s): Error creating YM2612 chip", tag()); -} - -void ym2612_device::device_clock_changed() -{ - calculate_rates(); - ym2612_clock_changed(m_chip, clock(), clock() / 72); -} - -void ym2612_device::calculate_rates() -{ - int rate = clock() / 72; - - if (m_stream != nullptr) - m_stream->set_sample_rate(rate); - else - m_stream = machine().sound().stream_alloc(*this,0,2,rate); -} - -//------------------------------------------------- -// device_stop - device-specific stop -//------------------------------------------------- - -void ym2612_device::device_stop() -{ - ym2612_shutdown(m_chip); -} - -//------------------------------------------------- -// device_reset - device-specific reset -//------------------------------------------------- - -void ym2612_device::device_reset() -{ - ym2612_reset_chip(m_chip); -} - - -u8 ym2612_device::read(offs_t offset) -{ - return ym2612_read(m_chip, offset & 3); -} - -void ym2612_device::write(offs_t offset, u8 data) -{ - ym2612_write(m_chip, offset & 3, data); -} - - -DEFINE_DEVICE_TYPE(YM2612, ym2612_device, "ym2612", "YM2612 OPN2") - -ym2612_device::ym2612_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) - : ym2612_device(mconfig, YM2612, tag, owner, clock) -{ -} - -ym2612_device::ym2612_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_stream(nullptr) - , m_timer{ nullptr, nullptr } - , m_chip(nullptr) - , m_irq_handler(*this) -{ -} - - -DEFINE_DEVICE_TYPE(YM3438, ym3438_device, "ym3438", "YM3438 OPN2C") - -ym3438_device::ym3438_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) - : ym2612_device(mconfig, YM3438, tag, owner, clock) -{ -} |