// handle clock changed
protected override void device_clock_changed()
{
if (m_stream != null)
{
m_stream.set_sample_rate(m_chip.sample_rate(clock()));
}
}
//-------------------------------------------------
// interface_post_load - after we load a save
// state be sure to update the mixer stream's
// output sample rate
//-------------------------------------------------
public override void interface_post_load()
{
// mixer stream could be null if no inputs were specified
if (m_mixer_stream != null)
{
m_mixer_stream.set_sample_rate((u32)device().machine().sample_rate());
}
// call our parent
base.interface_post_load();
}
//-------------------------------------------------
// interface_post_load - after we load a save
// state be sure to update the mixer stream's
// output sample rate
//-------------------------------------------------
public override void interface_post_load()
{
// Beware that there's not going to be a mixer stream if there was
// no inputs
if (m_mixer_stream != null)
{
m_mixer_stream.set_sample_rate(device().machine().sample_rate());
}
// call our parent
base.interface_post_load();
}
} // note that directly connecting BC1 to A0 puts data on 0 and address on 1
// use this when BC1 == !A0; here, BC1=0 selects 'latch address' and BC1=1 selects 'data'
//DECLARE_WRITE8_MEMBER( address_data_w ) { ay8910_write_ym(offset & 1, data); }
// bc1=a0, bc2=a1
//DECLARE_WRITE8_MEMBER(write_bc1_bc2);
//void set_volume(int channel,int volume);
void ay_set_clock(int clock)
{
//throw new emu_unimplemented();
#if false
// FIXME: this doesn't belong here, it should be an input pin exposed via devcb
if (type() == YM2149 && (m_flags & YM2149_PIN26_LOW))
{
clock /= 2;
}
#endif
m_channel.set_sample_rate(clock / 8);
}
protected override void device_clock_changed()
{
m_stream.set_sample_rate(clock());
int prescaler = get_prescaler();
if (prescaler != 0)
{
logerror("/{0} prescaler selected\n", prescaler);
attotime half_period = clocks_to_attotime((u64)(prescaler / 2));
m_vck_timer.adjust(half_period, 0, half_period);
}
else
{
logerror("VCK slave mode selected\n");
m_vck_timer.adjust(attotime.never);
}
}
protected override void device_clock_changed()
{
int clock_multiple;
/* adjust internal clock */
m_namco_clock = (int)clock();
for (clock_multiple = 0; m_namco_clock < INTERNAL_RATE; clock_multiple++)
{
m_namco_clock *= 2;
}
m_f_fracbits = clock_multiple + 15;
/* adjust output clock */
m_sample_rate = m_namco_clock;
logerror("Namco: freq fractional bits = {0}: internal freq = {1}, output freq = {2}\n", m_f_fracbits, m_namco_clock, m_sample_rate);
m_stream.set_sample_rate((u32)m_sample_rate);
}
