process$($count$)$

begin

if $($A $<$ B$)$ then

$--$ A and B are both $2-$bit unsigned binary number registers each.

R$0<=$ R$1$;

else

if $($A $=$ B$)$ then

R$0<=$ R$2$;

else

R$0<=$ R$3$;

end if;

end if;

end process;