Brent–Kung adder
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In electronics, an adder is a combinatorial or sequential logic element which computes the (n+1)-bit sum of two n-bit numbers. The Brent–Kung adder is one of the more advanced designs, having a gate level depth of O(log2(n)).
The Brent–Kung adder is a parallel prefix form carry look-ahead adder. It takes less area to implement than the Kogge-Stone adder and has less wiring congestion, but lower performance.
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