static void snd_q(int data) {
q = data;
if (data) {
UINT8 val = tms5220_status_r(0);
sndlocals.ef[3] = !((val & 0x40) >> 6);
sndlocals.ef[4] = ((val & 0x80) >> 7);
printf("i");
} else {
static WRITE_HANDLER(nuova_pia_b_w) {
if (~data & 0x02) // write
tms5220_data_w(0, locals.pia_a);
if (~data & 0x01) // read
locals.pia_a = tms5220_status_r(0);
pia_set_input_ca2(2, 1);
locals.pia_b = data;
}
UINT8 a2bus_echoii_device::read_c0nx(address_space &space, UINT8 offset)
{
switch (offset)
{
case 0:
return 0x1f | tms5220_status_r(m_tms, space, 0);
}
return 0;
}
static READ8_DEVICE_HANDLER( r6532_porta_r )
{
if (has_tms5220)
{
running_device *tms = devtag_get_device(device->machine, "tms");
logerror("(%f)%s:TMS5220 status read = %02X\n", attotime_to_double(timer_get_time(device->machine)), cpuexec_describe_context(device->machine), tms5220_status_r(tms, 0));
return tms5220_status_r(tms, 0);
}
else
return 0xff;
}
static READ8_DEVICE_HANDLER( r6532_porta_r )
{
exidy_sound_state *state = get_safe_token(device);
if (state->m_tms != NULL)
{
logerror("(%f)%s:TMS5220 status read = %02X\n", space.machine().time().as_double(), space.machine().describe_context(), tms5220_status_r(state->m_tms, space, 0));
return tms5220_status_r(state->m_tms, space, 0);
}
else
return 0xff;
}
/*
TMS5200 speech chip read
*/
static READ8_HANDLER ( geneve_speech_r )
{
activecpu_adjust_icount(-8); /* this is just a minimum, it can be more */
return tms5220_status_r(offset);
}
static WRITE8_HANDLER( exidy_shriot_w )
{
/* I/O is done if A2 == 0 */
if ((offset & 0x04) == 0)
{
switch (offset & 0x03)
{
case 0: /* port A */
if (has_mc3417)
cpunum_set_input_line(machine, 2, INPUT_LINE_RESET, (data & 0x10) ? CLEAR_LINE : ASSERT_LINE);
riot_porta_data = (riot_porta_data & ~riot_porta_ddr) | (data & riot_porta_ddr);
break;
case 1: /* port A DDR */
riot_porta_ddr = data;
break;
case 2: /* port B */
if (has_tms5220)
{
if (!(data & 0x01) && (riot_portb_data & 0x01))
{
riot_porta_data = tms5220_status_r(machine, 0);
logerror("(%f)%04X:TMS5220 status read = %02X\n", attotime_to_double(timer_get_time()), activecpu_get_previouspc(), riot_porta_data);
}
if (!(data & 0x02) && (riot_portb_data & 0x02))
{
logerror("(%f)%04X:TMS5220 data write = %02X\n", attotime_to_double(timer_get_time()), activecpu_get_previouspc(), riot_porta_data);
tms5220_data_w(machine, 0, riot_porta_data);
}
}
riot_portb_data = (riot_portb_data & ~riot_portb_ddr) | (data & riot_portb_ddr);
break;
case 3: /* port B DDR */
riot_portb_ddr = data;
break;
}
}
/* PA7 edge detect control if A2 == 1 and A4 == 0 */
else if ((offset & 0x10) == 0)
{
riot_PA7_irq_enable = offset & 0x03;
}
/* timer enable if A2 == 1 and A4 == 1 */
else
{
static const int divisors[4] = { 1, 8, 64, 1024 };
/* make sure the IRQ state is clear */
if (riot_state != RIOT_COUNT)
riot_irq_flag &= ~0x80;
riot_irq_state = 0;
update_irq_state(0);
/* set the enable from the offset */
riot_timer_irq_enable = (offset & 0x08) ? 1 : 0;
/* set a new timer */
riot_clock_divisor = divisors[offset & 0x03];
timer_adjust_oneshot(riot_timer, attotime_mul(ATTOTIME_IN_HZ(SH6532_CLOCK), data * riot_clock_divisor), 0);
riot_state = RIOT_COUNT;
}
}
