ENTITY mux6to1 ISPORT (in1 : IN BIT;in2 : IN BIT;in3 : IN BIT;in4 : IN BIT;in5 : IN BIT;in6 : IN BIT;en1 : IN BIT;en2 : IN BIT;en3 : IN BIT;out1 : OUT BIT);END mux6to1;ARCHITECTURE mux6to1_arch OF mux6to1 ISBEGIN  with en1&en2&en3 select  out1 <= in1 when b"000",          in2 when b"001",          in3 when b"010",          in4 when b"011",          in5 when b"100",          in6 when b"101",          b"0" when b"110",          b"0" when b"111";END;