show.vhd

此程序能够实现4位二进制乘法

LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
ENTITY SHOW IS
    PORT( SI:IN STD_LOGIC_VECTOR(4 DOWNTO 0);
         SOU:OUT STD_LOGIC_VECTOR(4 downto 0));
end SHOW;

ARCHITECTURE PART1 OF SHOW IS
  BEGIN

SOU<=NOT SI; 
END PART1;