Implementation of elementary functions for logarithmic number systems
2008 (English)In: IET Computers and digital techniques, ISSN 1751-8601, Vol. 2, no 4, 295-304 p.Article in journal (Refereed) Published
Computations in logarithmic number systems require realisations of four different elementary functions. In the current paper the authors use a recently proposed approximation method based on weighted sums of bit-products to realise these functions. It is shown that the considered method can be used to efficiently realise the different functions. Furthermore, a transformation is proposed to improve the results for functions with logarithmic characteristics. Implementation results shows that significant savings in area and power can be obtained using optimisation techniques.
Place, publisher, year, edition, pages
2008. Vol. 2, no 4, 295-304 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-44129DOI: 10.1049/iet-cdt:20070080Local ID: 75759OAI: oai:DiVA.org:liu-44129DiVA: diva2:264990