www.pudn.com > DDSforsinandcos.rar > decode47.vhd

library ieee; 
use ieee.std_logic_1164.all; 
 entity decode47 is port 
  ( 
     adr :in std_logic_vector(3 downto 0); 
     decodeout :out std_logic_vector(6 downto 0) 
); 
end decode47; 
 architecture behave of decode47 is 
   begin 
  process(adr) 
    begin  
     
case adr is 
   when"0000"=>decodeout<="1111110"; 
   when"0001"=>decodeout<="0110000"; 
   when"0010"=>decodeout<="1101101"; 
   when"0011"=>decodeout<="1111001"; 
   when"0100"=>decodeout<="0110011"; 
   when"0101"=>decodeout<="1011011"; 
   when"0110"=>decodeout<="1011111"; 
   when"0111"=>decodeout<="1110000"; 
   when"1000"=>decodeout<="1111111"; 
   when others=>decodeout<="1111011"; 
 end case; 
 end process; 
end behave;