Encoder prioridad

Priority_encoder

library IEEE;
use IEEE.STD_LOGIC_1164.ALL;

entity Priority_encoder is

port(
	r: in std_logic_vector(4 downto 1);
	pcode: out std_logic_vector(2 downto 0)
);
end Priority_encoder;

architecture cond_arch of Priority_encoder is

begin
	pcode <= "100" when (r(4)='1') else
				"011" when (r(3)='1') else
				"010" when (r(2)='1') else
				"001" when (r(1)='1') else
				"000"; 
end cond_arch;