The European Logarithmic Microprocesor

  • Authors:
  • John N. Coleman;Christopher I. Softley;Jiri Kadlec;Rudolf Matousek;Milan Tichy;Z. Pohl;Antonin Hermanek;Nico F. Benschop

  • Affiliations:
  • -;-;-;-;-;-;-;-

  • Venue:
  • IEEE Transactions on Computers
  • Year:
  • 2008

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Abstract

In 2000 we described a proposal for a logarithmic arithmetic unit, which we suggested would offer a faster, more accurate alternative to floating-point procedures. Would it in fact do so, and could it feasibly be integrated into a microprocessor so that the intended benefits might be realised? Herein we describe the European Logarithmic Microprocessor, a device designed around that unit, and compare its performance with that of a commercial superscalar pipelined floating-point processor. We conclude that the experiment has been successful; that for 32-bit work logarithmic arithmetic may now be the technique of choice.