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// license:GPL-2.0+
// copyright-holders:Couriersud
/*
* nld_9316.c
*
*/
#include "nld_9316.h"
#include "../nl_base.h"
namespace netlist
{
namespace devices
{
static constexpr const unsigned MAXCNT = 15;
NETLIB_OBJECT(9316)
{
NETLIB_CONSTRUCTOR(9316)
, m_CLK(*this, "CLK", NETLIB_DELEGATE(9316, clk))
, m_ENT(*this, "ENT")
, m_LOADQ(*this, "LOADQ")
, m_ENP(*this, "ENP")
, m_CLRQ(*this, "CLRQ")
, m_A(*this, "A", NETLIB_DELEGATE(9316, abcd))
, m_B(*this, "B", NETLIB_DELEGATE(9316, abcd))
, m_C(*this, "C", NETLIB_DELEGATE(9316, abcd))
, m_D(*this, "D", NETLIB_DELEGATE(9316, abcd))
, m_Q(*this, {{ "QA", "QB", "QC", "QD" }})
, m_RC(*this, "RC")
, m_cnt(*this, "m_cnt", 0)
, m_abcd(*this, "m_abcd", 0)
, m_loadq(*this, "m_loadq", 0)
, m_ent(*this, "m_ent", 0)
{
}
private:
NETLIB_RESETI();
NETLIB_UPDATEI();
NETLIB_HANDLERI(clk);
NETLIB_HANDLERI(abcd)
{
m_abcd = static_cast<uint8_t>((m_D() << 3) | (m_C() << 2) | (m_B() << 1) | (m_A() << 0));
}
logic_input_t m_CLK;
logic_input_t m_ENT;
logic_input_t m_LOADQ;
logic_input_t m_ENP;
logic_input_t m_CLRQ;
logic_input_t m_A;
logic_input_t m_B;
logic_input_t m_C;
logic_input_t m_D;
object_array_t<logic_output_t, 4> m_Q;
logic_output_t m_RC;
/* counter state */
state_var_u8 m_cnt;
/* cached pins */
state_var_u8 m_abcd;
state_var_sig m_loadq;
state_var_sig m_ent;
private:
void update_outputs_all(const unsigned &cnt, const netlist_time &out_delay) noexcept
{
m_Q[0].push((cnt >> 0) & 1, out_delay);
m_Q[1].push((cnt >> 1) & 1, out_delay);
m_Q[2].push((cnt >> 2) & 1, out_delay);
m_Q[3].push((cnt >> 3) & 1, out_delay);
}
};
NETLIB_OBJECT_DERIVED(9316_dip, 9316)
{
NETLIB_CONSTRUCTOR_DERIVED(9316_dip, 9316)
{
register_subalias("1", "CLRQ");
register_subalias("2", "CLK");
register_subalias("3", "A");
register_subalias("4", "B");
register_subalias("5", "C");
register_subalias("6", "D");
register_subalias("7", "ENP");
// register_subalias("8", "); -. GND
register_subalias("9", "LOADQ");
register_subalias("10", "ENT");
register_subalias("11", "QD");
register_subalias("12", "QC");
register_subalias("13", "QB");
register_subalias("14", "QA");
register_subalias("15", "RC");
// register_subalias("16", ); -. VCC
}
};
NETLIB_RESET(9316)
{
m_CLK.set_state(logic_t::STATE_INP_LH);
m_cnt = 0;
m_abcd = 0;
}
NETLIB_HANDLER(9316, clk)
{
auto cnt(m_cnt);
if (m_loadq)
{
++cnt &= MAXCNT;
//m_RC.push(m_ENT() && (cnt == MAXCNT), NLTIME_FROM_NS(27));
if (cnt > 0 && cnt < MAXCNT)
update_outputs_all(cnt, NLTIME_FROM_NS(20));
else if (cnt == 0)
{
m_RC.push(0, NLTIME_FROM_NS(27));
update_outputs_all(0, NLTIME_FROM_NS(20));
}
else
{
m_RC.push(m_ent, NLTIME_FROM_NS(27));
update_outputs_all(MAXCNT, NLTIME_FROM_NS(20));
}
}
else
{
cnt = m_abcd;
m_RC.push(m_ent && (cnt == MAXCNT), NLTIME_FROM_NS(27));
update_outputs_all(cnt, NLTIME_FROM_NS(22));
}
m_cnt = cnt;
}
NETLIB_UPDATE(9316)
{
const netlist_sig_t CLRQ(m_CLRQ());
m_ent = m_ENT();
m_loadq = m_LOADQ();
if (((m_loadq ^ 1) || (m_ent && m_ENP())) && CLRQ)
{
m_CLK.activate_lh();
}
else
{
m_CLK.inactivate();
if (!CLRQ && (m_cnt>0))
{
m_cnt = 0;
update_outputs_all(m_cnt, NLTIME_FROM_NS(36));
}
}
m_RC.push(m_ent && (m_cnt == MAXCNT), NLTIME_FROM_NS(27));
}
NETLIB_DEVICE_IMPL(9316, "TTL_9316", "+CLK,+ENP,+ENT,+CLRQ,+LOADQ,+A,+B,+C,+D")
NETLIB_DEVICE_IMPL(9316_dip, "TTL_9316_DIP", "")
} //namespace devices
} // namespace netlist
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