A serial Boolean logic unit has two 4-bit shift registers, A and B, and function as follows:
if X =0, the contens of A is replaced by the bit by bit Boolean OR of A and B;
if x=1, the contents of A is replaced by the bit by bit Boolen AND of A and B.
for example
A= 0110 if x =0, A becomes 1110
B=1100 if x=1, A becomes 0100
After the numbers have been placed in A and B, and X is set to 0 or 1, a start signal (st) arrives thats sets the circuit in operation. After four shift pulses, the operation is completed and the circuit automatically shuts itself off. Design the logic circuit and the control circuit. Use J-K flip-flops and any other necessary gates.