sn7483.vhd

来自「VHDL子程序集,包括各种例程资料以及源码.」· VHDL 代码 · 共 24 行

--*****************************
--*   4 BIT ADDER IC SN7483   *
--*    Filename : SN7483      *
--*****************************

library IEEE;
use IEEE.std_logic_1164.all;
use IEEE.std_logic_unsigned.all;

entity SN7483 is
    port (
          Cin: in std_logic;
          X:   in std_logic_vector(3 downto 0);
          Y:   in std_logic_vector (3 downto 0);
          S:   out std_logic_vector (4 downto 0)
         );
end SN7483;

architecture SN7483_arch of SN7483 is

begin
   S <= ('0'& X) + Y + Cin;
end SN7483_arch;