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// license:GPL-2.0+
// copyright-holders:Couriersud
/*
* nld_7486.c
*
*/
#include "nld_7486.h"
NETLIB_NAMESPACE_DEVICES_START()
#if (USE_TRUTHTABLE)
nld_7486::truthtable_t nld_7486::m_ttbl;
const char *nld_7486::m_desc[] = {
"A , B | Q ",
"0,0|0|15",
"0,1|1|22",
"1,0|1|22",
"1,1|0|15",
""
};
#else
NETLIB_START(7486)
{
register_input("A", m_I[0]);
register_input("B", m_I[1]);
register_output("Q", m_Q[0]);
save(NLNAME(m_active));
}
NETLIB_RESET(7486)
{
m_active = 1;
}
NETLIB_UPDATE(7486)
{
const netlist_time delay[2] = { NLTIME_FROM_NS(15), NLTIME_FROM_NS(22) };
UINT8 t = INPLOGIC(m_I[0]) ^ INPLOGIC(m_I[1]);
OUTLOGIC(m_Q[0], t, delay[t]);
}
ATTR_HOT void NETLIB_NAME(7486)::inc_active()
{
const netlist_time delay[2] = { NLTIME_FROM_NS(15), NLTIME_FROM_NS(22) };
nl_assert(netlist().use_deactivate());
if (++m_active == 1)
{
m_I[0].activate();
m_I[1].activate();
netlist_time mt = this->m_I[0].net().time();
if (this->m_I[1].net().time() > mt)
mt = this->m_I[1].net().time();
UINT8 t = INPLOGIC(m_I[0]) ^ INPLOGIC(m_I[1]);
m_Q[0].net().set_Q_time(t, mt + delay[t]);
}
}
ATTR_HOT void NETLIB_NAME(7486)::dec_active()
{
#if 1
nl_assert(netlist().use_deactivate());
if (--m_active == 0)
{
m_I[0].inactivate();
m_I[1].inactivate();
}
#endif
}
#endif
NETLIB_START(7486_dip)
{
register_sub("1", m_1);
register_sub("2", m_2);
register_sub("3", m_3);
register_sub("4", m_4);
register_subalias("1", m_1->m_I[0]);
register_subalias("2", m_1->m_I[1]);
register_subalias("3", m_1->m_Q[0]);
register_subalias("4", m_2->m_I[0]);
register_subalias("5", m_2->m_I[1]);
register_subalias("6", m_2->m_Q[0]);
register_subalias("9", m_3->m_I[0]);
register_subalias("10", m_3->m_I[1]);
register_subalias("8", m_3->m_Q[0]);
register_subalias("12", m_4->m_I[0]);
register_subalias("13", m_4->m_I[1]);
register_subalias("11", m_4->m_Q[0]);
}
NETLIB_UPDATE(7486_dip)
{
/* only called during startup */
m_1->update_dev();
m_2->update_dev();
m_3->update_dev();
m_4->update_dev();
}
NETLIB_RESET(7486_dip)
{
m_1->do_reset();
m_2->do_reset();
m_3->do_reset();
m_4->do_reset();
}
NETLIB_NAMESPACE_DEVICES_END()
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