// license:GPL-2.0+
// copyright-holders:Couriersud
/*
* nld_74153.c
*
*/
#include "nld_74153.h"
#include "../nl_base.h"
namespace netlist
{
namespace devices
{
/* FIXME: timing is not 100% accurate, Strobe and Select inputs have a
* slightly longer timing.
* Convert this to sub-devices at some time.
*/
NETLIB_OBJECT(74153sub)
{
NETLIB_CONSTRUCTOR(74153sub)
, m_C(*this, {{"C0", "C1", "C2", "C3"}})
, m_G(*this, "G")
, m_Y(*this, "AY") //FIXME: Change netlists
, m_chan(*this, "m_chan", 0)
{
}
NETLIB_RESETI();
NETLIB_UPDATEI();
public:
object_array_t<logic_input_t, 4> m_C;
logic_input_t m_G;
logic_output_t m_Y;
state_var<unsigned> m_chan;
};
NETLIB_OBJECT(74153)
{
NETLIB_CONSTRUCTOR(74153)
, m_sub(*this, "sub")
, m_A(*this, "A")
, m_B(*this, "B")
{
register_subalias("C0", m_sub.m_C[0]);
register_subalias("C1", m_sub.m_C[1]);
register_subalias("C2", m_sub.m_C[2]);
register_subalias("C3", m_sub.m_C[3]);
register_subalias("G", m_sub.m_G);
register_subalias("AY", m_sub.m_Y); //FIXME: Change netlists
}
NETLIB_RESETI() { }
NETLIB_UPDATEI();
public:
NETLIB_SUB(74153sub) m_sub;
logic_input_t m_A;
logic_input_t m_B;
};
NETLIB_OBJECT(74153_dip)
{
NETLIB_CONSTRUCTOR(74153_dip)
, m_1(*this, "1")
, m_2(*this, "2")
, m_A(*this, "14") // m_2.m_B
, m_B(*this, "2") // m_2.m_B
{
register_subalias("1", m_1.m_G);
register_subalias("3", m_1.m_C[3]);
register_subalias("4", m_1.m_C[2]);
register_subalias("5", m_1.m_C[1]);
register_subalias("6", m_1.m_C[0]);
register_subalias("7", m_1.m_Y);
register_subalias("9", m_2.m_Y);
register_subalias("10", m_2.m_C[0]);
register_subalias("11", m_2.m_C[1]);
register_subalias("12", m_2.m_C[2]);
register_subalias("13", m_2.m_C[3]);
register_subalias("15", m_2.m_G);
}
//NETLIB_RESETI();
NETLIB_UPDATEI();
protected:
NETLIB_SUB(74153sub) m_1;
NETLIB_SUB(74153sub) m_2;
logic_input_t m_A;
logic_input_t m_B;
};
NETLIB_RESET(74153sub)
{
m_chan = 0;
}
NETLIB_UPDATE(74153sub)
{
const netlist_time delay[2] = { NLTIME_FROM_NS(23), NLTIME_FROM_NS(18) };
if (!m_G())
{
auto t = m_C[m_chan]();
m_Y.push(t, delay[t]);
}
else
{
m_Y.push(0, delay[0]);
}
}
NETLIB_UPDATE(74153)
{
m_sub.m_chan = (m_A() | (m_B()<<1));
m_sub.update_dev();
}
NETLIB_UPDATE(74153_dip)
{
m_2.m_chan = m_1.m_chan = (m_A() | (m_B()<<1));
m_1.update_dev();
m_2.update_dev();
}
NETLIB_DEVICE_IMPL(74153)
NETLIB_DEVICE_IMPL(74153_dip)
} //namespace devices
} // namespace netlist