Method and system for optimizing floating point conversion...

Details Method and system for optimizing floating point conversion... Method and system for optimizing floating point conversion...

2007-05-21

2011-10-11

Malzahn, David H (Department: 2193)

Electrical computers: arithmetic processing and calculating

Electrical digital calculating computer

Particular function performed

Reexamination Certificate

active

08037116

ABSTRACT:
A method of streamlining floating-point conversions includes determining a source coefficient and a source exponent of an input value represented by a floating-point number in a source base; estimating an approximated target exponent (ATE) using the source coefficient and the source exponent, in the event the source coefficient has a non-zero value; determining whether the ATE exceeds a maximum exponent so as to result an overflow, and outputting a predefined overflow value in the event of an overflow; determining whether the ATE exceeds a minimum exponent so as to result an underflow, and outputting a predefined underflow value in the event of an underflow; and in the event the ATE does not result in either an overflow or underflow, converting the input value to an output value represented by a converted coefficient, a converted base and the exponent of the output value.

REFERENCES:
patent: 4590584 (1986-05-01), Yaguchi et al.
patent: 5889980 (1999-03-01), Smith, Jr.
patent: 6282554 (2001-08-01), Abdallah et al.
patent: 6754810 (2004-06-01), Elliott et al.
patent: 6990505 (2006-01-01), Ahmed
patent: 7707233 (2010-04-01), Cornea-Hasegan
patent: 2006/0047733 (2006-03-01), Hervin et al.
patent: 2006/0047739 (2006-03-01), Schulte et al.
patent: 2006/0064454 (2006-03-01), Wang et al.
patent: 2006/0179098 (2006-08-01), Kelley et al.
patent: 2006/0179099 (2006-08-01), Carlough et al.
patent: 2006/0179103 (2006-08-01), Carlough et al.
patent: 2006/0265443 (2006-11-01), Cornea-Hasegan
patent: 2007/0022152 (2007-01-01), Gerwig et al.
patent: 2007/0050436 (2007-03-01), Chen et al.
patent: 2007/0061387 (2007-03-01), Carlough et al.
patent: 2007/0061388 (2007-03-01), Carlough et al.
patent: 2008/0263120 (2008-10-01), Carlson et al.
E.M. Shwarz et al; “The S/390 G5 Floating-point unit;” [online]; [retrieved on Apr. 4, 2007]; retrieved from the internet http://www.research.ibm.com/journal/rd/435/schwarz.html.
Marius Cornea et al., “IEEE 754R Decimal Floating-Point Arithmetic: Reliable and Efficient Implementation for Intel Architecture Platforms,” [Online]; [retrieved on Apr. 4, 2007]; retrieved from the Internet http://developer.intel.com/technology/itiindex.htm.

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