mux_4x1 m1(w1,i[0],i[1],i[2],i[3],s[0],s[1]); mux_4x1 m2(w2,i[4],i[5],i[6],i[7],s[0],s[1]); mux_2x1 m3(out,w1,w2,s[2]); ...