bintogra.vhd

来自「VHDL子程序集,包括各种例程资料以及源码.」· VHDL 代码 · 共 29 行

--**********************************
--*   Binary To Gray Code Convert  *
--*       Filename : BINTOGRA      *
--**********************************

library IEEE;
use IEEE.std_logic_1164.all;

entity BINTOGRA is
    port (
          B: in STD_LOGIC_VECTOR (0 to 7);
          G: out STD_LOGIC_VECTOR (0 to 7)
         );
end BINTOGRA;

architecture BINTOGRA_arch of BINTOGRA is

begin
process (B)

begin
    for i in 0 to 6 loop
        G(i) <= B(i+1) xor B(i);
    end loop;    
    G(7) <= B(7);   
end process;  
   
end BINTOGRA_arch;