Ejemplo n.º 1
0
static READ8_DEVICE_HANDLER( r6532_portb_r )
{
	UINT8 newdata = riot6532_portb_in_get(device);
	if (has_tms5220)
	{
		running_device *tms = devtag_get_device(device->machine, "tms");
		newdata &= ~0x0c;
		if (tms5220_readyq_r(tms)) newdata |= 0x04;
		if (tms5220_intq_r(tms)) newdata |= 0x08;
	}
	return newdata;
}
Ejemplo n.º 2
0
/*
    TMS7041 PORT A
    A0 - X1 NDSR A8
    A1 - X1 MDTR A9
    A2 - R - TMS7020 port B bit 0 (REV2)
    A3 - TMS5220 IRQ
    A4 - R - TMS7020 port B bit 1 (REV4)
    A5 - X1 RXD A4 (version b) / WX301-14 (version a)
    A6 - X1 SCLK A9
    A7 - TMS5220 RDY
*/
static READ8_HANDLER(tms7041_porta_r)
{
	exelv_state *state = space->machine().driver_data<exelv_state>();
	device_t *tms5220c = space->machine().device( "tms5220c" );
	UINT8 data = 0x00;

	logerror("tms7041_porta_r\n");

	data |= ( state->m_tms7020_portb & 0x01 ) ? 0x04 : 0x00;
	data |= tms5220_intq_r( tms5220c ) ? 0x08 : 0x00;
	data |= ( state->m_tms7020_portb & 0x02 ) ? 0x10 : 0x00;
	data |= tms5220_readyq_r( tms5220c ) ? 0x80 : 0x00;

	return data;
}