nor3.vhd

来自「vhdl programs to use as a lab experiment」· VHDL 代码 · 共 11 行

library ieee;
use ieee.std_logic_1164.all;
entity norgate3 is
port(a,b,c: in std_logic;
      z:  out std_logic
      );
end norgate3;
Architecture reg of norgate3 is
begin
   z<= not(a or b or c);
end reg;