通过二进制实现十进制浮点运算:一些建议

ASAP 2010 - 21st IEEE International Conference on Application-specific Systems, Architectures and Processors Pub Date : 2010-07-07 DOI:10.1109/ASAP.2010.5540969

N. Brisebarre, N. Louvet, Érik Martin-Dorel, J. Muller, A. Panhaleux, M. Ercegovac

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引用次数: 2

摘要

我们提出了一些算法，并提供了一些相关的结果，使得使用可用的二进制浮点函数在没有十进制运算符的处理器上实现十进制浮点运算成为可能。在这个初步的研究中，我们只关注四舍五入模式。我们展示了可以分别使用binary64和binary28浮点算法实现decimal32和decimal64算术中的几个函数。讨论了小数点平方根和一些超越函数。我们还考虑了基数转换算法。

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Implementing decimal floating-point arithmetic through binary: Some suggestions

We propose algorithms and provide some related results that make it possible to implement decimal floatingpoint arithmetic on a processor that does not have decimal operators, using the available binary floating-point functions. In this preliminary study, we focus on round-to-nearest mode only. We show that several functions in decimal32 and dec-imal64 arithmetic can be implemented using binary64 and binaryl28 floating-point arithmetic, respectively. We discuss the decimal square root and some transcendental functions. We also consider radix conversion algorithms.

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ASAP 2010 - 21st IEEE International Conference on Application-specific Systems, Architectures and Processors

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