zerocheck.vbe

i need of vhdl code for 32-bit risc processor

ENTITY zerocheck IS
PORT (
avalue : IN bit_vector(7 downto 0);
branchvalue : OUT BIT 
);
END zerocheck;

ARCHITECTURE zerocheck_arch OF zerocheck IS

BEGIN
branchvalue<= ( avalue(0) OR avalue(1) OR avalue(2) OR avalue(3) OR avalue(4) OR avalue(5) OR avalue(6) OR avalue(7) );
END;