--mux2to1.vhd n-bit 2-to-1 multiplexer
library ieee ;
use ieee.std_logic_1164.all ;
entity mux2to1 is
generic ( n : integer := 14 ) ;
port (	
  w0 : in 	std_logic_vector(n-1 downto 0) ;--input first term
  w1 : in 	std_logic_vector(n-1 downto 0) ;--input second term
  s	: in 	std_logic ;--select line
  f	: out 	std_logic_vector(n-1 downto 0) ) ;--output seleted term
end mux2to1 ;
architecture behavior of mux2to1 is
begin
  with s select
  f <= w0 when '0',
       w1 when others ;
end behavior ;