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14th IEEE Symposium on Computer Arithmetic (ARITH-14 '99)
New Algorithms for Improved Transcendental Functions on IA-64
Adelaide, Australia
April 14-April 16
ISBN: 0-7695-0116-8
Shane Story, Intel Corporation
Ping Tak, Intel Corporation
Peter Tang, Intel Corporation
The IA-64 architecture provides new opportunities and challenges for implementing an improved set of transcendental functions. Using several novel polynomial-based table-driven techniques, we are able to provide new algorithms for the transcendental functions. Major improvements include an accuracy level of about 0.6 ulps (units in the last place) and forward trigonometric functions that have a period of 2pi. The accuracy enhancements are achieved at improved speed, yet without an increase in the table size. In this paper, we highlight the key IA-64 architectural features that influenced our designs and explain the main ideas used in our new algorithms.
Citation:
Shane Story, Ping Tak, Peter Tang, "New Algorithms for Improved Transcendental Functions on IA-64," arith, pp.4, 14th IEEE Symposium on Computer Arithmetic (ARITH-14 '99), 1999
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