// device-level overrides
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
protected override void device_start()
{
m_disound = GetClassInterface <device_sound_interface_ay8910>();
int master_clock = (int)clock();
if (m_ioports < 1 && !(m_port_a_read_cb.isnull() && m_port_a_write_cb.isnull()))
{
fatalerror("Device '{0}' is a {1} and has no port A!", tag(), name());
}
if (m_ioports < 2 && !(m_port_b_read_cb.isnull() && m_port_b_write_cb.isnull()))
{
fatalerror("Device '{0}' is a {1} and has no port B!", tag(), name());
}
m_port_a_read_cb.resolve();
m_port_b_read_cb.resolve();
m_port_a_write_cb.resolve();
m_port_b_write_cb.resolve();
if ((m_flags & AY8910_SINGLE_OUTPUT) != 0)
{
logerror("{0} device using single output!\n", name());
m_streams = 1;
}
m_vol3d_table = new int[8 * 32 * 32 * 32]; // make_unique_clear<int32_t[]>(8*32*32*32);
build_mixer_table();
/* The envelope is pacing twice as fast for the YM2149 as for the AY-3-8910, */
/* This handled by the step parameter. Consequently we use a divider of 8 here. */
m_channel = machine().sound().stream_alloc(this, 0, m_streams, master_clock / 8);
ay_set_clock(master_clock);
ay8910_statesave();
}
//DECLARE_WRITE_LINE_MEMBER(clear_w);
// device-level overrides
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
protected override void device_start()
{
// resolve callbacks
foreach (devcb_write_line cb in m_q_out_cb)
{
cb.resolve();
}
m_parallel_out_cb.resolve();
// initial input state
m_address = 0;
m_data = false;
m_enable = false;
m_clear = false;
// arbitrary initial output state
m_q = 0xff;
save_item(m_address, "m_address");
save_item(m_data, "m_data");
save_item(m_enable, "m_enable");
save_item(m_q, "m_q");
save_item(m_clear, "m_clear");
}