Design a 4-bit serial equality comparator. That is, if we have a3a2a1a0=b3b2b1b0, then eq=1. Note that a3a2a1a0 is stored at register 1, while b3b2b1b0 is stored at register 2. You have to implement the serial equality comparator using a JK flip-flop (of course with other necessary circuits). You can assume that registers 1 and 2 can do right shift function