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One of the ways that custom instruction set extensions can improve over software execution is through the use of hardware structures that have been optimized at the arithmetic level. Arithmetic hardware, in many cases, can be partitioned into networks of full adders, separated by other logic that is better expressed using other types of logic gates. In this paper we present a novel logic synthesis...
Despite the impressive progress of logic synthesis in the past decade, finding the best architecture for a given circuit still remains an open and largely unsolved problem, especially for arithmetic circuits. In many cases, the outcome of even the most advanced synthesis techniques is highly dependent on the input description of the circuit, and the optimizations themselves barely modify the architecture...
The Leading Zero Anticipator (LZA) is one of the main components used in floating point addition. It tends to be on the critical path, so it has attracted the attention of many researchers in the past. Most LZAs used today can be classified in two categories: exact and inexact. Inexact LZAs are normally preferred due to their shorter critical paths and reduced complexity; however, the inexact LZA...
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