DocumentCode :
3401819
Title :
High-speed computation of unary functions
Author :
Ohhashi, M. ; Schneider, R.K.
Author_Institution :
Toshiba Corporation, Kawasaki, 210 Japan
fYear :
1985
fDate :
4-6 June 1985
Firstpage :
82
Lastpage :
85
Abstract :
This paper presents an architecture for fast evaluation of unary functions such as reciprocal, square root and reciprocal square root. The theory behind the architecture has been presented in [1]. The paper shows the results of extensive simulation that have allowed us to implement the architecture with minimum chip count and maximum accuracy. The accuracy is about 8 % error rate in the LSB of the chosen representation (IEEE 32-bit floating point format). This architecture allows the computation of unary functions in less than 200 nsec.
Keywords :
Accuracy; Approximation methods; Computer architecture; Error analysis; Hardware; Read only memory; Taylor series;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer Arithmetic (ARITH), 1985 IEEE 7th Symposium on
Conference_Location :
Urbana, IL,
Type :
conf
DOI :
10.1109/ARITH.1985.6158968
Filename :
6158968
Link To Document :
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