public uint8_t read(address_space space, offs_t offset)
{
if (m_oe == 1)
{
LOG("{0}: Read attempted while /OE inactive�(offset = {1})\n", machine().describe_context(), offset);
return((uint8_t)space.unmap());
}
// if a write has not completed yet, the highest bit of data written will be read back inverted when polling the offset
if (ready() || !EMULATE_POLLING)
{
return((uint8_t)base.read(offset));
}
else
{
LOG("{0}: Data read back before write completed (offset = {1})\n", machine().describe_context(), offset);
return((uint8_t)(~internal_read(offset) & 0x80));
}
}
public u8 data_r(address_space space, offs_t offset)
{
if (BIT(offset, 0) != 0)
{
// ZLSTATUS
machine().scheduler().boost_interleave(attotime.zero, attotime.from_usec(10));
return
((u8)(((u8)space.unmap() & 0xfc) |
(u8)(m_zaccept ? 0x00 : 0x02) |
(u8)(m_zready ? 0x00 : 0x01)));
}
else
{
// ZLREAD
if (!machine().side_effects_disabled())
{
m_zaccept = true;
}
return(m_mcu_data);
}
}
public u8 reset_r(address_space space)
{
watchdog_reset(); return((u8)space.unmap());
}
//READ8_MEMBER( watchdog_timer_device::reset_r )
public byte reset_r(address_space space, offs_t offset, u8 mem_mask = 0xff)
{
watchdog_reset(); return((byte)space.unmap());
}