Analysis of Logarithmic Number System Processors

Thanos Stouraitis, Fred J. Taylor

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The Logarithmic Number System (LNS) has recently been shown to be a viable alternative to traditional fixed- and floating-point systems. The LNS operations of addition and subtraction are known to be table-lookup intensive. As such, the LNS have been technology-limited in precision. A new LNS arithmetic unit is proposed and its error performance is analyzed in this paper. Experimental results are shown to be in complete agreement with theoretical conjectures. The results of this analysis allow the development of Highperformance 20-ns 24-bit multiply/divide unit and an attendant 40-ns add/subtract device.

Original languageBritish English
Pages (from-to)519-527
Number of pages9
JournalIEEE Transactions on Circuits and Systems
Volume35
Issue number5
DOIs
StatePublished - May 1988

Keywords

  • adaptive radix processor
  • error analysis
  • Logarithmic number system

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