void via6522_device::clear_int(int data)
{
if (m_ifr & data)
{
m_ifr &= ~data;
output_irq();
if (TRACE_VIA)
{
logerror("%s:6522VIA chip %s: IFR = %02X\n", machine().describe_context(), tag(), m_ifr);
}
}
}
void acia6850_device::device_start()
{
// resolve callbacks
m_txd_handler.resolve_safe();
m_rts_handler.resolve_safe();
m_irq_handler.resolve_safe();
save_item(NAME(m_status));
save_item(NAME(m_tdr));
save_item(NAME(m_rdr));
save_item(NAME(m_first_master_reset));
save_item(NAME(m_dcd_irq_pending));
save_item(NAME(m_overrun_pending));
save_item(NAME(m_divide));
save_item(NAME(m_bits));
save_item(NAME(m_stopbits));
save_item(NAME(m_parity));
save_item(NAME(m_brk));
save_item(NAME(m_rts));
save_item(NAME(m_dcd));
save_item(NAME(m_irq));
save_item(NAME(m_txc));
save_item(NAME(m_txd));
save_item(NAME(m_tx_state));
save_item(NAME(m_tx_bits));
save_item(NAME(m_tx_shift));
save_item(NAME(m_tx_parity));
save_item(NAME(m_tx_counter));
save_item(NAME(m_tx_irq_enable));
save_item(NAME(m_rxc));
save_item(NAME(m_rxd));
save_item(NAME(m_rx_state));
save_item(NAME(m_rx_bits));
save_item(NAME(m_rx_shift));
save_item(NAME(m_rx_parity));
save_item(NAME(m_rx_counter));
save_item(NAME(m_rx_irq_enable));
output_txd(1);
output_rts(1);
output_irq(1);
}
void acia6850_device::update_irq()
{
output_irq(calculate_txirq() && calculate_rxirq());
}