mame/src/lib/netlist/devices/nld_7450.cpp
balr0g b277908905 - Minor cosmetic refactoring. Added a "uninitialised array" template to
allow in-place creation (for increased locality) of netlist classes.
Main use is in truthtable class.
- Remove PLIB_NAMESPACE macros.
- Remove namespace macros. Use explicit namespace declarations.
- Moved device definitions into cpp files.
- Moved more device definitions into cpp files.
- New prefix "nlid" for include files flags purely internal include
files not to be leaked into userland. 
- Fix factory code.
2016-06-07 21:40:30 +02:00

104 lines
1.8 KiB
C++

// license:GPL-2.0+
// copyright-holders:Couriersud
/*
* nld_7450.c
*
*/
#include "nld_7450.h"
namespace netlist
{
namespace devices
{
NETLIB_OBJECT(7450)
{
NETLIB_CONSTRUCTOR(7450)
{
enregister("A", m_A);
enregister("B", m_B);
enregister("C", m_C);
enregister("D", m_D);
enregister("Q", m_Q);
}
//NETLIB_RESETI();
NETLIB_UPDATEI();
public:
logic_input_t m_A;
logic_input_t m_B;
logic_input_t m_C;
logic_input_t m_D;
logic_output_t m_Q;
};
NETLIB_OBJECT(7450_dip)
{
NETLIB_CONSTRUCTOR(7450_dip)
, m_1(*this, "1")
, m_2(*this, "2")
{
register_subalias("1", m_1.m_A);
register_subalias("2", m_2.m_A);
register_subalias("3", m_2.m_B);
register_subalias("4", m_2.m_C);
register_subalias("5", m_2.m_D);
register_subalias("6", m_2.m_Q);
//register_subalias("7",); GND
register_subalias("8", m_1.m_Q);
register_subalias("9", m_1.m_C);
register_subalias("10", m_1.m_D);
//register_subalias("11", m_1.m_X1);
//register_subalias("12", m_1.m_X1Q);
register_subalias("13", m_1.m_B);
//register_subalias("14",); VCC
}
//NETLIB_RESETI();
//NETLIB_UPDATEI();
NETLIB_SUB(7450) m_1;
NETLIB_SUB(7450) m_2;
};
NETLIB_UPDATE(7450)
{
m_A.activate();
m_B.activate();
m_C.activate();
m_D.activate();
UINT8 t1 = INPLOGIC(m_A) & INPLOGIC(m_B);
UINT8 t2 = INPLOGIC(m_C) & INPLOGIC(m_D);
const netlist_time times[2] = { NLTIME_FROM_NS(22), NLTIME_FROM_NS(15) };
UINT8 res = 0;
if (t1 ^ 1)
{
if (t2 ^ 1)
{
res = 1;
}
else
{
m_A.inactivate();
m_B.inactivate();
}
} else {
if (t2 ^ 1)
{
m_C.inactivate();
m_D.inactivate();
}
}
OUTLOGIC(m_Q, res, times[1 - res]);// ? 22000 : 15000);
}
NETLIB_DEVICE_IMPL(7450)
NETLIB_DEVICE_IMPL(7450_dip)
} //namespace devices
} // namespace netlist