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Pipelined Range Reduction Based Truncated Multiplier

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Range reduction is the initial and essential stage of function computation,but its pipelined implementation has the drawbacks of large cost and terrible accuracy.We proposed low cost and accurate pipelined range reduction,which adopts truncated multiplier with optimized bit-width to reduce the cost of pipelined implementation and achieve the accuracy within 1 unit in the last place (ulp).TCORDIC algorithm is a widely used algorithm to compute floating-point sine/cosine function,and we implemented the combination of TCORDIC and our range reduction algorithms,verifying the goal of accuracy within 1 ulp.

Pipelined range reductionTruncated multiplierLow costFloating-point

ZHU Baozhou、LEI Yuanwu、PENG Yuanxi

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College of Computer, National University of Defense and Technology, Changsha 410073, China

This work is supported by the National Natural Science Foundations of ChinaThis work is supported by the National Natural Science Foundations of China

61402499No.61672526

2019

10.1049/cje.2019.07.003

中国电子杂志(英文版)

中国电子杂志(英文版)

CSTPCDCSCDSCIEI
ISSN：1022-4653
年,卷(期)：2019.28(6)
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