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);
assert_always(m_chip != NULL, "Error creating Y8950 chip");
/* ADPCM ROM data */
y8950_set_delta_t_memory(m_chip, *region(), region()->bytes());
m_stream = machine().sound().stream_alloc(*this,0,1,rate);
/* port and keyboard handler */
y8950_set_port_handler(m_chip, Y8950PortHandler_w, Y8950PortHandler_r, this);
y8950_set_keyboard_handler(m_chip, Y8950KeyboardHandler_w, Y8950KeyboardHandler_r, this);
/* Y8950 setup */
y8950_set_timer_handler (m_chip, timer_handler, this);
y8950_set_irq_handler (m_chip, IRQHandler, this);
y8950_set_update_handler(m_chip, y8950_update_request, this);
m_timer[0] = timer_alloc(0);
m_timer[1] = timer_alloc(1);
}
static DEVICE_START( y8950 )
{
static const y8950_interface dummy = { DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL, DEVCB_NULL };
y8950_state *info = get_safe_token(device);
int rate = device->clock()/72;
info->intf = device->static_config() ? (const y8950_interface *)device->static_config() : &dummy;
info->device = downcast<y8950_device *>(device);
/* stream system initialize */
info->chip = y8950_init(device,device->clock(),rate);
assert_always(info->chip != NULL, "Error creating Y8950 chip");
/* ADPCM ROM data */
y8950_set_delta_t_memory(info->chip, *device->region(), device->region()->bytes());
info->stream = device->machine().sound().stream_alloc(*device,0,1,rate,info,y8950_stream_update);
/* port and keyboard handler */
y8950_set_port_handler(info->chip, Y8950PortHandler_w, Y8950PortHandler_r, info);
y8950_set_keyboard_handler(info->chip, Y8950KeyboardHandler_w, Y8950KeyboardHandler_r, info);
/* Y8950 setup */
y8950_set_timer_handler (info->chip, TimerHandler, info);
y8950_set_irq_handler (info->chip, IRQHandler, info);
y8950_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);
}
//static DEVICE_START( y8950 )
int device_start_y8950(UINT8 ChipID, int clock)
{
//static const y8950_interface dummy = { 0 };
//y8950_state *info = get_safe_token(device);
y8950_state *info;
int rate;
if (ChipID >= MAX_CHIPS)
return 0;
info = &Y8950Data[ChipID];
rate = clock/72;
if ((CHIP_SAMPLING_MODE == 0x01 && rate < CHIP_SAMPLE_RATE) ||
CHIP_SAMPLING_MODE == 0x02)
rate = CHIP_SAMPLE_RATE;
//info->intf = device->static_config ? (const y8950_interface *)device->static_config : &dummy;
//info->intf = &dummy;
//info->device = device;
/* stream system initialize */
info->chip = y8950_init(clock,rate);
//assert_always(info->chip != NULL, "Error creating Y8950 chip");
/* ADPCM ROM data */
//y8950_set_delta_t_memory(info->chip, device->region, device->regionbytes);
y8950_set_delta_t_memory(info->chip, NULL, 0x00);
//info->stream = stream_create(device,0,1,rate,info,y8950_stream_update);
/* port and keyboard handler */
y8950_set_port_handler(info->chip, Y8950PortHandler_w, Y8950PortHandler_r, info);
y8950_set_keyboard_handler(info->chip, Y8950KeyboardHandler_w, Y8950KeyboardHandler_r, info);
/* Y8950 setup */
y8950_set_timer_handler (info->chip, TimerHandler, info);
y8950_set_irq_handler (info->chip, IRQHandler, info);
y8950_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);
return rate;
}
