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/*
* nld_4020.c
*
*/
#include "nld_4020.h"
NETLIB_START(4020)
{
register_sub(sub, "sub");
register_sub(m_supply, "supply");
register_input("RESET", m_RESET);
register_subalias("IP", sub.m_IP);
register_subalias("Q1", sub.m_Q[0]);
register_subalias("Q4", sub.m_Q[3]);
register_subalias("Q5", sub.m_Q[4]);
register_subalias("Q6", sub.m_Q[5]);
register_subalias("Q7", sub.m_Q[6]);
register_subalias("Q8", sub.m_Q[7]);
register_subalias("Q9", sub.m_Q[8]);
register_subalias("Q10", sub.m_Q[9]);
register_subalias("Q11", sub.m_Q[10]);
register_subalias("Q12", sub.m_Q[11]);
register_subalias("Q13", sub.m_Q[12]);
register_subalias("Q14", sub.m_Q[13]);
register_subalias("VDD", m_supply.m_vdd);
register_subalias("VSS", m_supply.m_vss);
}
NETLIB_RESET(4020)
{
sub.do_reset();
}
NETLIB_START(4020_sub)
{
register_input("IP", m_IP);
register_output("Q1", m_Q[0]);
register_output("Q4", m_Q[3]);
register_output("Q5", m_Q[4]);
register_output("Q6", m_Q[5]);
register_output("Q7", m_Q[6]);
register_output("Q8", m_Q[7]);
register_output("Q9", m_Q[8]);
register_output("Q10", m_Q[9]);
register_output("Q11", m_Q[10]);
register_output("Q12", m_Q[11]);
register_output("Q13", m_Q[12]);
register_output("Q14", m_Q[13]);
save(NLNAME(m_cnt));
}
NETLIB_RESET(4020_sub)
{
m_IP.set_state(netlist_input_t::STATE_INP_HL);
m_cnt = 0;
}
NETLIB_UPDATE(4020_sub)
{
UINT8 cnt = m_cnt;
cnt = ( cnt + 1) & 0x3fff;
update_outputs(cnt);
m_cnt = cnt;
}
NETLIB_UPDATE(4020)
{
if (INPLOGIC(m_RESET))
{
sub.m_cnt = 0;
sub.m_IP.inactivate();
static const netlist_time reset_time = netlist_time::from_nsec(140);
OUTLOGIC(sub.m_Q[0], 0, reset_time);
for (int i=3; i<14; i++)
OUTLOGIC(sub.m_Q[i], 0, reset_time);
}
else
sub.m_IP.activate_hl();
}
inline NETLIB_FUNC_VOID(4020_sub, update_outputs, (const UINT16 cnt))
{
static const netlist_time out_delayQn[14] = {
NLTIME_FROM_NS(180), NLTIME_FROM_NS(280),
NLTIME_FROM_NS(380), NLTIME_FROM_NS(480),
NLTIME_FROM_NS(580), NLTIME_FROM_NS(680),
NLTIME_FROM_NS(780), NLTIME_FROM_NS(880),
NLTIME_FROM_NS(980), NLTIME_FROM_NS(1080),
NLTIME_FROM_NS(1180), NLTIME_FROM_NS(1280),
NLTIME_FROM_NS(1380), NLTIME_FROM_NS(1480),
};
OUTLOGIC(m_Q[0], 0, out_delayQn[0]);
for (int i=3; i<14; i++)
OUTLOGIC(m_Q[i], (cnt >> i) & 1, out_delayQn[i]);
}
NETLIB_START(4020_dip)
{
NETLIB_NAME(4020)::start();
/* +--------------+
* Q12 |1 ++ 16| VDD
* Q13 |2 15| Q11
* Q14 |3 14| Q10
* Q6 |4 4020 13| Q8
* Q5 |5 12| Q9
* Q7 |6 11| RESET
* Q4 |7 10| IP (Input pulses)
* VSS |8 9| Q1
* +--------------+
*/
register_subalias("1", sub.m_Q[11]);
register_subalias("2", sub.m_Q[12]);
register_subalias("3", sub.m_Q[13]);
register_subalias("4", sub.m_Q[5]);
register_subalias("5", sub.m_Q[4]);
register_subalias("6", sub.m_Q[6]);
register_subalias("7", sub.m_Q[3]);
register_subalias("8", m_supply.m_vss);
register_subalias("9", sub.m_Q[0]);
register_subalias("10", sub.m_IP);
register_subalias("11", m_RESET);
register_subalias("12", sub.m_Q[8]);
register_subalias("13", sub.m_Q[7]);
register_subalias("14", sub.m_Q[9]);
register_subalias("15", sub.m_Q[10]);
register_subalias("16", m_supply.m_vdd);
}
NETLIB_UPDATE(4020_dip)
{
NETLIB_NAME(4020)::update();
}
NETLIB_RESET(4020_dip)
{
NETLIB_NAME(4020)::reset();
}
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