Title :
Faster floating-point square root for integer processors
Author :
Jeannerod, Claude-Pierre ; Knochel, Herve ; Monat, Christophe ; Revy, Guillaume
Author_Institution :
Ecole Normale Superieure de Lyon, Lyon
Abstract :
This paper presents some work in progress on fast and accurate floating-point arithmetic software for ST200-based embedded systems. We show how to use some key architectural features to design codes that achieve correct rounding-to-nearest without sacrificing for efficiency. This is illustrated with the square root function, whose implementation given here is faster by over 35% than the previously best one for such systems.
Keywords :
embedded systems; floating point arithmetic; microprocessor chips; ST200-based embedded systems; floating-point arithmetic software; floating-point square root; integer processors; Application software; Approximation algorithms; Decoding; Embedded software; Embedded system; Floating-point arithmetic; Graphics; Hardware; Polynomials; Software performance;
Conference_Titel :
Industrial Embedded Systems, 2007. SIES '07. International Symposium on
Conference_Location :
Lisbon
Print_ISBN :
1-4244-0840-7
Electronic_ISBN :
1-4244-0840-7
DOI :
10.1109/SIES.2007.4297353