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// license:BSD-3-Clause
// copyright-holders:Ryan Holtz
/*
 * nld_tristate.cpp
 *
 */

#include "nld_tristate.h"
#include "netlist/nl_base.h"

namespace netlist
{
	namespace devices
	{
	NETLIB_OBJECT(tristate)
	{
		NETLIB_CONSTRUCTOR(tristate)
		, m_CEQ(*this, {{ "CEQ1", "CEQ2" }})
		, m_D(*this, {{ "D1", "D2" }})
		, m_Q(*this, "Q")
		{
		}

		NETLIB_UPDATEI();

	protected:
		object_array_t<logic_input_t, 2> m_CEQ;
		object_array_t<logic_input_t, 2> m_D;
		logic_output_t m_Q;
	};

	NETLIB_OBJECT(tristate3)
	{
		NETLIB_CONSTRUCTOR(tristate3)
		, m_CEQ(*this, {{ "CEQ1", "CEQ2", "CEQ3" }} )
		, m_D(*this, {{ "D1", "D2", "D3" }} )
		, m_Q(*this, "Q")
		{
		}

		NETLIB_UPDATEI();

	protected:
		object_array_t<logic_input_t, 3> m_CEQ;
		object_array_t<logic_input_t, 3> m_D;
		logic_output_t m_Q;
	};

	NETLIB_UPDATE(tristate)
	{
		unsigned q = 0;
		if (!m_CEQ[0]())
			q |= m_D[0]();
		if (!m_CEQ[1]())
			q |= m_D[1]();

		m_Q.push(q, NLTIME_FROM_NS(1));
	}

	NETLIB_UPDATE(tristate3)
	{
		unsigned q = 0;
		if (!m_CEQ[0]())
			q |= m_D[0]();
		if (!m_CEQ[1]())
			q |= m_D[1]();
		if (!m_CEQ[2]())
			q |= m_D[2]();

		m_Q.push(q, NLTIME_FROM_NS(1));
	}

	NETLIB_DEVICE_IMPL(tristate,  "TTL_TRISTATE",  "+CEQ1,+D1,+CEQ2,+D2")
	NETLIB_DEVICE_IMPL(tristate3, "TTL_TRISTATE3", "")

	} //namespace devices
} // namespace netlist