Simple Seed Architectures for Reciprocal and Square-Root Reciprocal

Jean-Michel Muller 1 Arnaud Tisserand 2 Milos Ercegovac 3
1 LIP - Laboratoire de l'Informatique du Parallélisme
2 ARITH - Arithmétique informatique
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
3 Digital Arithmetic and Reconfigurable Architecture Laboratory
Abstract : This paper presents a simple hardware architecture for computing the seed values for reciprocal and square root reciprocal. These seeds are used in the intitialization of floating-point division and square root software iterations. The proposed solution is based on polynomial approximation with specific coefficients and a table lookup.
Keywords : newton-raphson iteration division square root floating point arithmetic
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Conference papers
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  • HAL Id : ensl-00087002, version 1

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INRIA | CNRS | LIP | ENS-LYON | ARITH | LIRMM | MIPS | UNIV-MONTPELLIER | UNIV-LYON1 | UDL

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Jean-Michel Muller, Arnaud Tisserand, Milos Ercegovac. Simple Seed Architectures for Reciprocal and Square-Root Reciprocal. 39th Asilomar Conference on Signals, Systems and Computers, Oct 2005, Pacific Grove, California, United States. pp.1167-1171. ⟨ensl-00087002⟩

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