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path: root/src/lib/netlist/devices/nld_system.cpp
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// license:GPL-2.0+
// copyright-holders:Couriersud
/*
 * nld_system.c
 *
 */

#include "netlist/solver/nld_solver.h"
#include "netlist/solver/nld_matrix_solver.h"
#include "nlid_system.h"

namespace netlist
{
	namespace devices
	{
	// ----------------------------------------------------------------------------------------
	// netlistparams
	// ----------------------------------------------------------------------------------------


	// ----------------------------------------------------------------------------------------
	// extclock
	// ----------------------------------------------------------------------------------------

	NETLIB_RESET(extclock)
	{
		m_cnt = 0;
		m_off = netlist_time::from_double(m_offset());
		m_feedback.m_delegate = NETLIB_DELEGATE(extclock, update);

		//m_feedback.m_delegate .set(&NETLIB_NAME(extclock)::update, this);
		//m_Q.initial(0);
	}

	NETLIB_HANDLER(extclock, clk2)
	{
		m_Q.push((m_cnt & 1) ^ 1, m_inc[m_cnt]);
		if (++m_cnt >= m_size)
			m_cnt = 0;
	}

	NETLIB_HANDLER(extclock, clk2_pow2)
	{
		m_Q.push((m_cnt & 1) ^ 1, m_inc[m_cnt]);
		m_cnt = (++m_cnt) & (m_size-1);
	}

	NETLIB_UPDATE(extclock)
	{
		m_Q.push((m_cnt & 1) ^ 1, m_inc[m_cnt] + m_off);
		m_off = netlist_time::zero();
		if (++m_cnt >= m_size)
			m_cnt = 0;

		// continue with optimized clock handlers ....

		if ((m_size & (m_size-1)) == 0) // power of 2?
			m_feedback.m_delegate.set(&NETLIB_NAME(extclock)::clk2_pow2, this);
		else
			m_feedback.m_delegate.set(&NETLIB_NAME(extclock)::clk2, this);
	}

	// -----------------------------------------------------------------------------
	// nld_res_sw
	// -----------------------------------------------------------------------------

	NETLIB_RESET(res_sw)
	{
		m_last_state = 0;
		m_R.set_R(m_ROFF());
	}

	NETLIB_UPDATE(res_sw)
	{
		const netlist_sig_t state = m_I();
		if (state != m_last_state)
		{
			m_last_state = state;
			const nl_double R = state ? m_RON() : m_ROFF();

			// FIXME: We only need to update the net first if this is a time stepping net
			m_R.update();
			m_R.set_R(R);
			m_R.solve_later();
		}
	}

	/* -----------------------------------------------------------------------------
	 * nld_function
	 * ----------------------------------------------------------------------------- */

	NETLIB_RESET(function)
	{
		//m_Q.initial(0.0);
	}

	NETLIB_UPDATE(function)
	{
		for (std::size_t i=0; i < static_cast<unsigned>(m_N()); i++)
		{
			m_vals[i] = (*m_I[i])();
		}
		m_Q.push(m_compiled.evaluate(m_vals));
	}


	NETLIB_DEVICE_IMPL(dummy_input, "DUMMY_INPUT",            "")
	NETLIB_DEVICE_IMPL(frontier, "FRONTIER_DEV",           "+I,+G,+Q")
	NETLIB_DEVICE_IMPL(function, "AFUNC",                  "N,FUNC")
	NETLIB_DEVICE_IMPL(analog_input,        "ANALOG_INPUT",           "IN")
	NETLIB_DEVICE_IMPL(clock,               "CLOCK",                  "FREQ")
	NETLIB_DEVICE_IMPL(varclock,            "VARCLOCK",               "FUNC")
	NETLIB_DEVICE_IMPL(extclock,            "EXTCLOCK",               "FREQ,PATTERN")
	NETLIB_DEVICE_IMPL(res_sw,              "RES_SWITCH",             "+I,+1,+2")
	NETLIB_DEVICE_IMPL(mainclock,           "MAINCLOCK",              "FREQ")
	NETLIB_DEVICE_IMPL(gnd,                 "GND",                    "")
	NETLIB_DEVICE_IMPL(netlistparams,       "PARAMETER",              "")

	NETLIB_DEVICE_IMPL(logic_input, "LOGIC_INPUT", "IN,FAMILY")
	NETLIB_DEVICE_IMPL_ALIAS(logic_input_ttl, logic_input, "TTL_INPUT", "IN")

	} //namespace devices
} // namespace netlist