void cococart_slot_device::set_line(const char *line_name, coco_cartridge_line &line, cococart_line_value value)
{
if ((line.value != value) || (value == COCOCART_LINE_VALUE_Q))
{
line.value = value;
if (LOG_LINE)
logerror("[%s]: set_line(): %s <= %s\n", machine().describe_context(), line_name, line_value_string(value));
/* engage in a bit of gymnastics for this odious 'Q' value */
switch(line.value)
{
case COCOCART_LINE_VALUE_CLEAR:
line.line = 0x00;
line.q_count = 0;
break;
case COCOCART_LINE_VALUE_ASSERT:
line.line = 0x01;
line.q_count = 0;
break;
case COCOCART_LINE_VALUE_Q:
line.line = line.line ? 0x00 : 0x01;
if (line.q_count++ < 4)
set_line_timer(line, value);
break;
}
/* invoke the callback, if present */
if (!line.callback.isnull())
line.callback(line.line);
}
}
void cococart_slot_device::twiddle_line_if_q(coco_cartridge_line &line)
{
if (line.value == COCOCART_LINE_VALUE_Q)
{
line.q_count = 0;
set_line_timer(line, COCOCART_LINE_VALUE_Q);
}
}
static void twiddle_line_if_q(device_t *device, coco_cartridge_line *line)
{
if (line->value == COCOCART_LINE_VALUE_Q)
{
line->q_count = 0;
set_line_timer(device, line, COCOCART_LINE_VALUE_Q);
}
}
void cococart_slot_device::twiddle_line_if_q(coco_cartridge_line &line)
{
if (line.value == line_value::Q)
{
line.q_count = 0;
set_line_timer(line, line_value::Q);
}
}
void cococart_slot_device::cart_set_line(cococart_line line, cococart_line_value value)
{
switch (line)
{
case COCOCART_LINE_CART:
set_line_timer(m_cart_line, value);
break;
case COCOCART_LINE_NMI:
set_line_timer(m_nmi_line, value);
break;
case COCOCART_LINE_HALT:
set_line_timer(m_halt_line, value);
break;
case COCOCART_LINE_SOUND_ENABLE:
// do nothing for now
break;
}
}
void coco_cartridge_set_line(device_t *device, cococart_line line, cococart_line_value value)
{
switch (line)
{
case COCOCART_LINE_CART:
set_line_timer(device, &get_token(device)->cart_line, value);
break;
case COCOCART_LINE_NMI:
set_line_timer(device, &get_token(device)->nmi_line, value);
break;
case COCOCART_LINE_HALT:
set_line_timer(device, &get_token(device)->halt_line, value);
break;
case COCOCART_LINE_SOUND_ENABLE:
/* do nothing for now */
break;
}
}
void cococart_slot_device::set_line_value(cococart_slot_device::line which, cococart_slot_device::line_value value)
{
switch (which)
{
case cococart_slot_device::line::CART:
set_line_timer(m_cart_line, value);
break;
case cococart_slot_device::line::NMI:
set_line_timer(m_nmi_line, value);
break;
case cococart_slot_device::line::HALT:
set_line_timer(m_halt_line, value);
break;
case cococart_slot_device::line::SOUND_ENABLE:
if (m_cart)
m_cart->set_sound_enable(value != cococart_slot_device::line_value::CLEAR);
break;
}
}
