Carry-select adder

In electronics, a carry-select adder is a particular way to implement an adder, which is a logic element that computes the $(n+1)$ -bit sum of two $n$ -bit numbers. The carry-select adder is simple but rather fast, having a gate level depth of $O(\sqrt n)$ .

单词	Conditional sum adder
释义	Conditional sum adder 英语百科 Carry-select adder In electronics, a carry-select adder is a particular way to implement an adder, which is a logic element that computes the $(n+1)$ -bit sum of two $n$ -bit numbers. The carry-select adder is simple but rather fast, having a gate level depth of $O(\sqrt n)$ .
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Conditional sum adder

Carry-select adder