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.

Date of Patent:
Dec. 13, 2005

Filed:

Sep. 24, 2002
Applicants:

David S. Oliver, Longmont, CO (US);

Willard S. Briggs, Boulder, CO (US);

Inventors:

David S. Oliver, Longmont, CO (US);

Willard S. Briggs, Boulder, CO (US);

Assignee:

Advanced Micro Devices, Inc., Sunnyvale, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F009/38 ;
U.S. Cl.
CPC ...
Abstract

A floating point unit comprising: 1) an execution pipeline comprising a plurality of execution stages for executing floating point operations in a series of sequential steps; and 2) a try-again reservation station for storing a plurality of instructions to be loaded into the execution pipeline. Detection of a denormal result in the execution pipeline causes the execution pipeline to store the denormal result in a register array associated with the floating point unit and causes the execution pipeline to store a denormal result instruction in the try-again reservation station. The try-again reservation station subsequently re-loads the denormal result instruction into the execution pipeline and the de-normal result instruction retrieves the denormal result from the register array for additional processing.


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