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Gray to Binary Conversion VHDL source code

This page of VHDL source code covers Gray to Binary Conversion vhdl code.

VHDL Code

library IEEE;
use IEEE.STD_LOGIC_1164.ALL;
use IEEE.STD_LOGIC_ARITH.ALL;
use IEEE.STD_LOGIC_UNSIGNED.ALL;
entity gray2binary is
Port ( g : in STD_LOGIC_VECTOR (3 downto 0);
b : out STD_LOGIC_VECTOR (3 downto 0));
end gray2binary;

architecture Behavioral of gray2binary is
begin
b(3)<= g(3);
b(2)<= g(3) xor g(2);
b(1)<= g(3) xor g(2) xor g(1);
b(0)<= g(3) xor g(2) xor g(1) xor g(0);
end behavioral;

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