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/*
* nld_74175.c
*
*/
#include "nld_74175.h"
static const netlist_time delay[2] = { NLTIME_FROM_NS(25), NLTIME_FROM_NS(25) };
static const netlist_time delay_clear[2] = { NLTIME_FROM_NS(40), NLTIME_FROM_NS(25) };
NETLIB_START(74175_sub)
{
register_input("CLK", m_CLK);
register_output("Q1", m_Q[0]);
register_output("Q1Q", m_QQ[0]);
register_output("Q2", m_Q[1]);
register_output("Q2Q", m_QQ[1]);
register_output("Q3", m_Q[2]);
register_output("Q3Q", m_QQ[2]);
register_output("Q4", m_Q[3]);
register_output("Q4Q", m_QQ[3]);
save(NLNAME(m_clrq));
save(NLNAME(m_data));
}
NETLIB_RESET(74175_sub)
{
m_CLK.set_state(netlist_input_t::STATE_INP_LH);
m_clrq = 0;
m_data = 0;
}
NETLIB_UPDATE(74175_sub)
{
if (m_clrq)
{
for (int i=0; i<4; i++)
{
UINT8 d = (m_data >> i) & 1;
OUTLOGIC(m_Q[i], d, delay[d]);
OUTLOGIC(m_QQ[i], d ^ 1, delay[d ^ 1]);
}
}
}
NETLIB_UPDATE(74175)
{
if (!INPLOGIC(m_CLRQ))
{
for (int i=0; i<4; i++)
{
OUTLOGIC(m_sub.m_Q[i], 0, delay_clear[0]);
OUTLOGIC(m_sub.m_QQ[i], 1, delay_clear[1]);
}
}
m_sub.m_clrq = INPLOGIC(m_CLRQ);
UINT8 d = 0;
for (int i=0; i<4; i++)
{
d |= (INPLOGIC(m_D[i]) << i);
}
m_sub.m_data = d;
}
NETLIB_START(74175)
{
register_sub(m_sub, "sub");
register_subalias("CLK", m_sub.m_CLK);
register_input("CLRQ", m_CLRQ);
register_input("D1", m_D[0]);
register_subalias("Q1", m_sub.m_Q[0]);
register_subalias("Q1Q", m_sub.m_QQ[0]);
register_input("D2", m_D[1]);
register_subalias("Q2", m_sub.m_Q[1]);
register_subalias("Q2Q", m_sub.m_QQ[1]);
register_input("D3", m_D[2]);
register_subalias("Q3", m_sub.m_Q[2]);
register_subalias("Q3Q", m_sub.m_QQ[2]);
register_input("D4", m_D[3]);
register_subalias("Q4", m_sub.m_Q[3]);
register_subalias("Q4Q", m_sub.m_QQ[3]);
}
NETLIB_RESET(74175)
{
m_sub.do_reset();
}
NETLIB_START(74175_dip)
{
register_sub(m_sub, "sub");
register_subalias("9", m_sub.m_CLK);
register_input("1", m_CLRQ);
register_input("4", m_D[0]);
register_subalias("2", m_sub.m_Q[0]);
register_subalias("3", m_sub.m_QQ[0]);
register_input("5", m_D[1]);
register_subalias("7", m_sub.m_Q[1]);
register_subalias("6", m_sub.m_QQ[1]);
register_input("12", m_D[2]);
register_subalias("10", m_sub.m_Q[2]);
register_subalias("11", m_sub.m_QQ[2]);
register_input("13", m_D[3]);
register_subalias("15", m_sub.m_Q[3]);
register_subalias("14", m_sub.m_QQ[3]);
}
NETLIB_RESET(74175_dip)
{
NETLIB_NAME(74175)::reset();
}
NETLIB_UPDATE(74175_dip)
{
NETLIB_NAME(74175)::update();
}
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