7人表决器vote7.vhd

含有各类寄存器

library ieee;
use ieee.std_logic_1164.all;
use ieee.std_logic_unsigned.all;

ENTITY vote7 IS
	PORT
	(	men	: IN	std_logic_vector(6 downto 0);

		pass,stop	: buffer std_logic
);
	
END vote7;

ARCHITECTURE behave OF vote7 IS
BEGIN
 stop<=not pass;
	PROCESS (men)
        variable temp:std_logic_vector(2 downto 0);
			BEGIN
             temp:="000";
			 for i in 0 to 6 loop
                if(men(i)='1') then
                   temp:=temp+1;
                  else
                   temp:=temp+0;
                 end if;
              end loop;	
      pass<=temp(2);
 
	END PROCESS;
 END behave;