A. Design Negation (Two's complement),We mentioned that one can obtain the negative of any number using only inverters and an adder. The function that performs this conversion is -p = p +1 where p iscalled the One'sComplement of P and is obtained by inverting each bit of P number and -P is two's complement of P number
B. Design Signed Integer adder (Design and Test a 4-bit Two'sComplement Adder)
C. Signed Integer Subtracter (Design andTest a 4-bit Two's Complement Subtracter(i.e. one thatsubtracts one 4-bit number in Two's Complement form fromanother 4-bit number in Two's Complementform)