Selection based rounding system and method for floating point operations

摘要

A selection based rounding system and method eliminate the need for post increment based rounding in a floating point (FP) fused multiply adder that can be utilized in a processor or other digital circuit to significantly increase speed. Generally, an unincremented result and an incremented result are produced in parallel and then either one is selected as a rounded result based upon specified rounding criteria, thereby eliminating the time consuming need for an incrementor to perform rounding at or near the end of the FP fused multiply adder.