(Solved) : Design 4 Bit Adder Subtractor Circuit Using 4 Bit Binary Full Adders 74ls83 Necessary Addi Q28621185 . . . .

Design a 4-bit adder-subtractor circuit using the 4-bit binaryFull adders (74LS83) and any necessary additional logic gates. Thecircuit has a mode input bit, M, that controls its operation.Specifically, when M=0, the circuit becomes a 4-bit adder, and whenM=1, the circuit becomes a 4-bit subtractor that performs theoperation A plus the 2’s complement of B.Where A and B are two4-bits binary numbers. That is,

* When M=0, we perform A+B, and we assume thatboth numbers are unsigned numbers. So the maximum sum value will be15 (since we are assuming A and B are 4-bit numbers).

* When M=1, we perform A+ (B)2’s Complement.That