//static DEVICE_START( ym3812 )
int device_start_ym3812(void **_info, int EMU_CORE, int clock, int CHIP_SAMPLING_MODE, int CHIP_SAMPLE_RATE)
{
//static const ym3812_interface dummy = { 0 };
//ym3812_state *info = get_safe_token(device);
ym3812_state *info;
int rate;
#ifdef ENABLE_ALL_CORES
if (EMU_CORE >= 0x02)
EMU_CORE = EC_DBOPL;
#else
EMU_CORE = EC_DBOPL;
#endif
info = (ym3812_state *) calloc(1, sizeof(ym3812_state));
*_info = (void *) info;
info->EMU_CORE = EMU_CORE;
rate = (clock & 0x7FFFFFFF)/72;
if ((CHIP_SAMPLING_MODE == 0x01 && rate < CHIP_SAMPLE_RATE) ||
CHIP_SAMPLING_MODE == 0x02)
rate = CHIP_SAMPLE_RATE;
//info->intf = device->static_config ? (const ym3812_interface *)device->static_config : &dummy;
//info->intf = &dummy;
//info->device = device;
/* stream system initialize */
switch(EMU_CORE)
{
#ifdef ENABLE_ALL_CORES
case EC_MAME:
info->chip = ym3812_init(clock & 0x7FFFFFFF,rate);
//assert_always(info->chip != NULL, "Error creating YM3812 chip");
//info->stream = stream_create(device,0,1,rate,info,ym3812_stream_update);
/* YM3812 setup */
ym3812_set_timer_handler (info->chip, TimerHandler, info);
ym3812_set_irq_handler (info->chip, IRQHandler, info);
ym3812_set_update_handler(info->chip, _stream_update, info);
//info->timer[0] = timer_alloc(device->machine, timer_callback_0, info);
//info->timer[1] = timer_alloc(device->machine, timer_callback_1, info);
break;
#endif
case EC_DBOPL:
info->chip = adlib_OPL2_init(clock & 0x7FFFFFFF, rate, _stream_update, info);
break;
}
return rate;
}
void ym3812_device::device_start()
{
int rate = clock()/72;
m_irq_handler.resolve();
/* stream system initialize */
m_chip = ym3812_init(this,clock(),rate);
assert_always(m_chip != NULL, "Error creating YM3812 chip");
m_stream = machine().sound().stream_alloc(*this,0,1,rate);
/* YM3812 setup */
ym3812_set_timer_handler (m_chip, timer_handler, this);
ym3812_set_irq_handler (m_chip, IRQHandler, this);
ym3812_set_update_handler(m_chip, ym3812_update_request, this);
m_timer[0] = timer_alloc(0);
m_timer[1] = timer_alloc(1);
}
static DEVICE_START( ym3812 )
{
static const ym3812_interface dummy = { 0 };
ym3812_state *info = get_safe_token(device);
int rate = device->clock()/72;
info->intf = device->static_config() ? (const ym3812_interface *)device->static_config() : &dummy;
info->device = device;
/* stream system initialize */
info->chip = ym3812_init(device,device->clock(),rate);
assert_always(info->chip != NULL, "Error creating YM3812 chip");
info->stream = device->machine().sound().stream_alloc(*device,0,1,rate,info,ym3812_stream_update);
/* YM3812 setup */
ym3812_set_timer_handler (info->chip, TimerHandler, info);
ym3812_set_irq_handler (info->chip, IRQHandler, info);
ym3812_set_update_handler(info->chip, _stream_update, info);
info->timer[0] = device->machine().scheduler().timer_alloc(FUNC(timer_callback_0), info);
info->timer[1] = device->machine().scheduler().timer_alloc(FUNC(timer_callback_1), info);
}