Carry Prediction and Selection for Truncated Multiplication

Romain Michard 1 Arnaud Tisserand 2 Nicolas Veyrat-Charvillon 1
2 ARITH - Arithmétique informatique
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
Abstract : This paper presents an error compensation method for truncated multiplication. From two $n$-bit operands, the operator produces an n-bit product with small error compared to the 2n-bit exact product. The method is based on a logical computation followed by a simplification process. The filtering parameter used in the simplification process helps to control the trade-off between hardware cost and accuracy. The proposed truncated multiplication scheme has been synthesized on an FPGA platform. It gives a better accuracy over area ratio than previous well-known schemes such as the constant correcting and variable correcting truncation schemes (CCT and VCT).
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Communication dans un congrès
SiPS'06: Workshop on Signal Processing Systems, Oct 2006, Banff, Canada, IEEE, pp.339-344, 2006
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Contributeur : Arnaud Tisserand <>
Soumis le : dimanche 10 juin 2007 - 14:24:10
Dernière modification le : mardi 16 janvier 2018 - 15:36:38
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Romain Michard, Arnaud Tisserand, Nicolas Veyrat-Charvillon. Carry Prediction and Selection for Truncated Multiplication. SiPS'06: Workshop on Signal Processing Systems, Oct 2006, Banff, Canada, IEEE, pp.339-344, 2006. 〈lirmm-00153366〉

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