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A Study on the Design of Floating-Point Functions in FPGAs

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Field Programmable Logic and Application (FPL 2003)

Part of the book series: Lecture Notes in Computer Science ((LNCS,volume 2778))

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Abstract

Floating-Point Operations represent a common task in a variety of applications, but such operations often result in a bottleneck, due to the large number of machine cycles required to compute them. Even though the FPGA community has developed advanced algorithms to improve the speed of FLOPs, floating-point transcendental functions are still underdeveloped. In this paper, we discuss some of the tradeoffs faced when implementing floating-point functions in FPGAs. These techniques, including lookup tables, and CORDIC algorithms, have been used in the past for the implementation of fixed-point analytic functions. This paper seeks to apply those methods to floating-point functions. The implementation results from different versions of a floating-point sine function are summarized in terms of speed, area, and accuracy to understand the effect of different architectural alternatives.

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References

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Author information

Authors and Affiliations

  1. University of Delaware, 140 Evans Hall, DE, 19716, Newark, USA

    Fernando E. Ortiz, John R. Humphrey & Dennis W. Prather

  2. EM Photonics Inc., 102 East Main St., DE, 19711, Newark, USA

    James P. Durbano

Authors
  1. Fernando E. Ortiz
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  2. John R. Humphrey
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  3. James P. Durbano
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  4. Dennis W. Prather
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Editor information

Editors and Affiliations

  1. Department of Electrical and Electronic Engineering, Imperial College London, Exhibition Road, SW7 2BT, London, UK

    Peter Y. K. Cheung

  2. Department of Electrical & Electronic Engineering, Imperial College London, Exhibition Road, SW7 2BT, London, UK

    George A. Constantinides

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© 2003 Springer-Verlag Berlin Heidelberg

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Ortiz, F.E., Humphrey, J.R., Durbano, J.P., Prather, D.W. (2003). A Study on the Design of Floating-Point Functions in FPGAs. In: Y. K. Cheung, P., Constantinides, G.A. (eds) Field Programmable Logic and Application. FPL 2003. Lecture Notes in Computer Science, vol 2778. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-45234-8_137

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  • DOI: https://doi.org/10.1007/978-3-540-45234-8_137

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-540-40822-2

  • Online ISBN: 978-3-540-45234-8

  • eBook Packages: Springer Book Archive

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