vhdl1.vhd

来自「程序提供了一种2选1选择器的算法」· VHDL 代码 · 共 18 行

LIBRARY IEEE;
USE IEEE.STD_LOGIC_1164.ALL;
USE IEEE.STD_LOGIC_UNSIGNED.ALL;
ENTITY Vhdl1 IS
    PORT (a,b,s:IN STD_LOGIC;
              c:OUT STD_LOGIC);
END Vhdl1;
ARCHITECTURE choice OF Vhdl1 IS
BEGIN
PROCESS (s)
BEGIN
    IF s = '1' THEN
        c <= a;
    ELSE
        c <= b;
END IF;
END PROCESS;
END choice;