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VLSI Implementation of Double-Precision Floating-Point Multiplier Using Karatsuba Technique

Circuits, Systems, and Signal Processing volume 32, pages 15–27 (2013)Cite this article

Abstract

The double-precision floating-point arithmetic, specifically multiplication, is a widely used arithmetic operation for many scientific and signal processing applications. In general, the double-precision floating-point multiplier requires a large 53×53 mantissa multiplication in order to get the final result. This mantissa multiplication exists as a limit on both area and performance bounds of this operation. This paper presents a novel way to reduce this large multiplication. The proposed approach in this paper allows to use less amount of multiplication hardware compared to the traditional method. The multiplication is done by using Karatsuba technique. This design is specifically targeting Field Programmable Gate Array (FPGA) platforms, and it has also been evaluated on ASIC flow. The proposed module gives excellent performance with efficient use of resources. The design is fully compatible with the IEEE standard precision. The proposed module has shown a better performance in comparison with the best reported multipliers in the literature.

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Acknowledgement

The authors would like to thank the anonymous reviewers, whose comments and suggestions helped considerably to improve the paper. This work is supported by the City University of Hong Kong (Project No. 7200179).

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  1. Department of Electronic Engineering, City University of Hong Kong, Hong Kong, China

    Manish Kumar Jaiswal & Ray C. C. Cheung

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  1. Manish Kumar Jaiswal
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  2. Ray C. C. Cheung
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Correspondence to Manish Kumar Jaiswal.

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Jaiswal, M.K., Cheung, R.C.C. VLSI Implementation of Double-Precision Floating-Point Multiplier Using Karatsuba Technique. Circuits Syst Signal Process 32, 15–27 (2013). https://doi.org/10.1007/s00034-012-9457-3

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  • DOI: https://doi.org/10.1007/s00034-012-9457-3

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