Importance

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Abstract

An integrated circuit (IC) is disclosed that includes a set of configurable logic circuits. Each configurable logic circuit configurably performs a set of functions. A particular configurable circuit receives configuration data defining a function for the particular configurable circuit. In some embodiments, one configuration of a configurable circuit is to add two input signals received by the configurable circuit. Also, in some embodiments, one configuration is to subtract two input signals received by a configurable circuit. In some such embodiments, each configurable logic circuit receives a first input signal, a second input signal, and a carry input signal and generates a propagate and generate signal for the add or subtract operation based on the inputs to the configurable circuit and the configuration of the configurable circuit.

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First Claim