The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 18, 2006
Filed:
Apr. 28, 2003
Ping T. Tang, Hayward, CA (US);
Cristina S. Iordache, Beaverton, OR (US);
Ping T. Tang, Hayward, CA (US);
Cristina S. Iordache, Beaverton, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
Methods and an apparatus for compiling a transcendental floating-point operation are disclosed. The disclosed techniques compile a transcendental floating-point operation by replacing the transcendental floating-point operation with an integer-based routine (e.g., a single routine) hand-coded to perform the transcendental floating-point operation. Each of the instructions in the integer-based routine, including the integer operations, is compiled directly into opcodes without primitive floating-point emulation calls. As a result, function nesting is reduced and more efficient algorithms are used. The disclosed system does not simply emulate basic floating-point operations using integer operations. Instead, portions of the computation are isolated where fixed-point accuracy is sufficient and thus native integer computations can be used. For example, computing (log(1+Z)−Z)/Z instead of computing log(1+Z).
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