// license:GPL-2.0+ // copyright-holders:Couriersud /* * nld_74153.c * */ #include "nld_74153.h" NETLIB_NAMESPACE_DEVICES_START() /* FIXME: timing is not 100% accurate, Strobe and Select inputs have a * slightly longer timing. * Convert this to sub-devices at some time. */ NETLIB_START(74153sub) { register_input("C0", m_C[0]); register_input("C1", m_C[1]); register_input("C2", m_C[2]); register_input("C3", m_C[3]); register_input("G", m_G); register_output("AY", m_Y); //FIXME: Change netlists m_chan = 0; save(NLNAME(m_chan)); } NETLIB_RESET(74153sub) { m_chan = 0; } NETLIB_UPDATE(74153sub) { const netlist_time delay[2] = { NLTIME_FROM_NS(23), NLTIME_FROM_NS(18) }; if (!INPLOGIC(m_G)) { UINT8 t = INPLOGIC(m_C[m_chan]); OUTLOGIC(m_Y, t, delay[t] ); } else { OUTLOGIC(m_Y, 0, delay[0]); } } NETLIB_START(74153) { register_sub("sub", m_sub); 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_input("A", m_A); register_input("B", m_B); register_subalias("G", m_sub.m_G); register_subalias("AY", m_sub.m_Y); //FIXME: Change netlists } NETLIB_RESET(74153) { } NETLIB_UPDATE(74153) { m_sub.m_chan = (INPLOGIC(m_A) | (INPLOGIC(m_B)<<1)); m_sub.update(); } NETLIB_START(74153_dip) { register_sub("1", m_1); register_sub("2", m_2); register_subalias("1", m_1.m_G); register_input("2", m_B); // m_2.m_B 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_input("14", m_A); // m_2.m_B register_subalias("15", m_2.m_G); } NETLIB_UPDATE(74153_dip) { m_2.m_chan = m_1.m_chan = (INPLOGIC(m_A) | (INPLOGIC(m_B)<<1)); m_1.update(); m_2.update(); } NETLIB_RESET(74153_dip) { m_1.do_reset(); m_2.do_reset(); } NETLIB_NAMESPACE_DEVICES_END()