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Type: Journal article
Title: A novel implementation of radix-4 floating-point division/square-root using comparison multiples
Author: Nikmehr, H.
Phillips, B.
Lim, C.
Citation: Computers and Electrical Engineering, 2010; 36(5 Sp Iss):850-863
Publisher: Pergamon-Elsevier Science Ltd
Issue Date: 2010
ISSN: 0045-7906
Statement of
H. Nikmehr, B. Phillips, C.C. Lim
Abstract: A new implementation for minimally redundant radix-4 floating-point SRT div/sqrt (division/square-root) with the recurrence in the signed-digit format is introduced. The implementation is developed based on the comparison multiples idea. In the proposed approach, the magnitude of the quotient (root) digit is calculated by comparing the truncated partial remainder with 2 limited precision multiples of the divisor (partial root). The digit sign is determined by investigating the polarity of the truncated partial remainder. A timing evaluation using the logical synthesis (Synopsys DC with Artisan 0.18 μm typical library) shows a latency of 2.5 ns for the recurrence of the proposed div/sqrt. This is less than of the conventional implementation. © 2008 Elsevier Ltd. All rights reserved.
Keywords: Digit recurrence algorithms
SRT division
Redundant arithmetic
Description: First published online in 2008
Rights: © 2008 Published by Elsevier Ltd
DOI: 10.1016/j.compeleceng.2008.04.013
Appears in Collections:Aurora harvest
Electrical and Electronic Engineering publications

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