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An algorithmic approach for generic parallel adders

Binary addition is the most fundamental and frequently used operation. A well-designed adder should be fast and satisfy the application requirements. We propose an algorithmic approach to generate an irregular parallel-prefix adder, which has minimal delay for a given profile of input signals. It can cover different topologies such as ripple-carry, carry-skip and carry-select adders. Compared with Kogge-Stone and Brent-Kung adders, the results of the proposed approach have the smallest output delay.