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// license:GPL-2.0+
// copyright-holders:Couriersud
/*
* nld_74175.c
*
*/
#include "nld_74175.h"
#include "netlist/nl_base.h"
#include "nlid_system.h"
namespace netlist
{
namespace devices
{
NETLIB_OBJECT(74175)
{
NETLIB_CONSTRUCTOR(74175)
, m_D(*this, {{"D1", "D2", "D3", "D4"}})
, m_CLRQ(*this, "CLRQ")
, m_CLK(*this, "CLK", NETLIB_DELEGATE(74175, clk))
, m_Q(*this, {{"Q1", "Q2", "Q3", "Q4"}})
, m_QQ(*this, {{"Q1Q", "Q2Q", "Q3Q", "Q4Q"}})
, m_data(*this, "m_data", 0)
, m_power_pins(*this)
{
}
NETLIB_RESETI();
NETLIB_UPDATEI();
NETLIB_HANDLERI(clk);
protected:
object_array_t<logic_input_t, 4> m_D;
logic_input_t m_CLRQ;
logic_input_t m_CLK;
object_array_t<logic_output_t, 4> m_Q;
object_array_t<logic_output_t, 4> m_QQ;
state_var<unsigned> m_data;
nld_power_pins m_power_pins;
};
NETLIB_OBJECT_DERIVED(74175_dip, 74175)
{
NETLIB_CONSTRUCTOR_DERIVED(74175_dip, 74175)
{
register_subalias("9", m_CLK);
register_subalias("1", m_CLRQ);
register_subalias("4", m_D[0]);
register_subalias("2", m_Q[0]);
register_subalias("3", m_QQ[0]);
register_subalias("5", m_D[1]);
register_subalias("7", m_Q[1]);
register_subalias("6", m_QQ[1]);
register_subalias("12", m_D[2]);
register_subalias("10", m_Q[2]);
register_subalias("11", m_QQ[2]);
register_subalias("13", m_D[3]);
register_subalias("15", m_Q[3]);
register_subalias("14", m_QQ[3]);
register_subalias("8", "GND");
register_subalias("16", "VCC");
}
};
constexpr const netlist_time delay[2] = { NLTIME_FROM_NS(25), NLTIME_FROM_NS(25) };
constexpr const netlist_time delay_clear[2] = { NLTIME_FROM_NS(40), NLTIME_FROM_NS(25) };
NETLIB_HANDLER(74175, clk)
{
if (m_CLRQ())
{
for (std::size_t i=0; i<4; i++)
{
netlist_sig_t d = (m_data >> i) & 1;
m_Q[i].push(d, delay[d]);
m_QQ[i].push(d ^ 1, delay[d ^ 1]);
}
m_CLK.inactivate();
}
}
NETLIB_UPDATE(74175)
{
uint_fast8_t d = 0;
for (std::size_t i=0; i<4; i++)
{
d |= (m_D[i]() << i);
}
if (!m_CLRQ())
{
for (std::size_t i=0; i<4; i++)
{
m_Q[i].push(0, delay_clear[0]);
m_QQ[i].push(1, delay_clear[1]);
}
m_data = 0;
} else if (d != m_data)
{
m_data = d;
m_CLK.activate_lh();
}
}
NETLIB_RESET(74175)
{
m_CLK.set_state(logic_t::STATE_INP_LH);
m_data = 0xFF;
}
NETLIB_DEVICE_IMPL(74175, "TTL_74175", "+CLK,+D1,+D2,+D3,+D4,+CLRQ,@VCC,@GND")
NETLIB_DEVICE_IMPL(74175_dip,"TTL_74175_DIP", "")
} //namespace devices
} // namespace netlist
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