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// license:GPL-2.0+
// copyright-holders:Couriersud
/*
* nld_74393.c
*
*/
#include "nld_74393.h"
#include "netlist/nl_base.h"
#include "nlid_system.h"
namespace netlist
{
namespace devices
{
static constexpr const unsigned MAXCNT = 15;
NETLIB_OBJECT(74393)
{
NETLIB_CONSTRUCTOR(74393)
, m_CP(*this, "CP")
, m_MR(*this, "MR")
, m_Q(*this, {"Q0", "Q1", "Q2", "Q3"})
, m_cnt(*this, "m_cnt", 0)
, m_cp(*this, "m_cp", 0)
, m_mr(*this, "m_mr", 0)
, m_power_pins(*this)
{
}
private:
NETLIB_RESETI()
{
m_cnt = 0;
}
NETLIB_UPDATEI()
{
netlist_sig_t last_cp = m_cp;
netlist_sig_t last_mr = m_mr;
m_cp = m_CP();
m_mr = m_MR();
if (!last_mr && m_mr)
{
m_cnt = 0;
update_outputs_all(0, NLTIME_FROM_NS(24), NLTIME_FROM_NS(24), NLTIME_FROM_NS(24), NLTIME_FROM_NS(24));
}
else if (!m_mr && last_cp && !m_cp)
{
auto cnt = (m_cnt + 1) & MAXCNT;
update_outputs_all(cnt, NLTIME_FROM_NS(13), NLTIME_FROM_NS(22), NLTIME_FROM_NS(31), NLTIME_FROM_NS(40));
m_cnt = cnt;
}
}
logic_input_t m_CP;
logic_input_t m_MR;
object_array_t<logic_output_t, 4> m_Q;
state_var<unsigned> m_cnt;
state_var_sig m_cp;
state_var_sig m_mr;
nld_power_pins m_power_pins;
void update_outputs_all(unsigned cnt, netlist_time q0_delay, netlist_time q1_delay, netlist_time q2_delay, netlist_time q3_delay) noexcept
{
m_Q[0].push((cnt >> 0) & 1, q0_delay);
m_Q[1].push((cnt >> 1) & 1, q1_delay);
m_Q[2].push((cnt >> 2) & 1, q2_delay);
m_Q[3].push((cnt >> 3) & 1, q3_delay);
}
};
NETLIB_OBJECT(74393_dip)
{
NETLIB_CONSTRUCTOR(74393_dip)
, m_A(*this, "A")
, m_B(*this, "B")
{
register_subalias("1", "A.CP");
register_subalias("2", "A.MR");
register_subalias("3", "A.Q0");
register_subalias("4", "A.Q1");
register_subalias("5", "A.Q2");
register_subalias("6", "A.Q3");
register_subalias("7", "A.GND");
register_subalias("8", "B.Q3");
register_subalias("9", "B.Q2");
register_subalias("10", "B.Q1");
register_subalias("11", "B.Q0");
register_subalias("12", "B.MR");
register_subalias("13", "B.CP");
register_subalias("14", "A.VCC");
connect("A.GND", "B.GND");
connect("A.VCC", "B.VCC");
}
NETLIB_UPDATEI() { }
NETLIB_RESETI() { }
private:
NETLIB_SUB(74393) m_A;
NETLIB_SUB(74393) m_B;
};
NETLIB_DEVICE_IMPL(74393, "TTL_74393", "+CP,+MR,@VCC,@GND")
NETLIB_DEVICE_IMPL(74393_dip, "TTL_74393_DIP", "")
} //namespace devices
} // namespace netlist
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