74182.h

该文件以systemc为核心建立了32位alu

#include <systemc.h>

SC_MODULE(a74182)
{
	sc_in<bool>	np[4];
	sc_in<bool>	ng[4];
	sc_in<bool>	cn;

	sc_out<bool>	cx, cy, cz;
	sc_out<bool>	np_, ng_;

	void process(void)
	{
		cx = !((np[0] & ng[0]) | (!cn & ng[0]));
		cy = !((np[1] & ng[1]) | (!cn & ng[0] & ng[1]) | (np[0] & ng[0] & ng[1]));
		cz = !((np[2] & ng[2]) | (!cn & ng[0] & ng[1] & ng[2]) | (np[0] & ng[0] & ng[1] & ng[2]) | (np[1] & ng[1] & ng[2]));

		ng_ = (np[3] & ng[3]) | (ng[0] & ng[1] & ng[2] & ng[3]) | (np[1] & ng[1] & ng[2]) | (np[2] & ng[2] & ng[3]);
		np_ = np[0] | np[1] | np[2] | np[3];
	}

	SC_CTOR(a74182)
	{
		SC_METHOD(process);
		sensitive<<np[0]<<np[1]<<np[2]<<np[3]<<ng[0]<<ng[1]<<ng[2]<<ng[3]<<cn;
	}
};