PBL 1: signed-2’s-compliment
(a) Convert decimal M = (+125.125) and N = (–93.375) to binary, using signed-2’s-compliment representing with 1 sign bit, 7 integer bits, and 4 fraction bits to accommodate the numbers.
(b) Perform the binary equivalent of M + N, M – N, –M + N, and –M – N.
(c) Convert the answers back to decimal to check whether they are correct or not.