One’s complement representations of integers are used to simplify computer arithmetic. To represent positive and negetive integers with absolute value less than 2n, a total of n + 1 bits is used.
The leftmost bit used to represent the sign. A 0 in this position is used for positive integers, and a 1 in this position is used for negetive integers.
For positive integers, the remaining bits are identical to the binary expansion of the integers. For negetive integers, the remaining bits are obtained by first finding the binary expansion of the absolute value of the integer, and then taking the complement of each of these bits, where the complement of a 1 is a 0 and the complement of a 0 is a 1.
How is the one’scomplement representation of −m obtained from the one’s complement of m, when bit string of length n are used?
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