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:
Mar. 11, 2008

Filed:

Dec. 29, 2003
Applicants:

Krishna Thatipelli, Fremont, CA (US);

Balakrishna Venkatrao, Sunnyvale, CA (US);

Inventors:

Krishna Thatipelli, Fremont, CA (US);

Balakrishna Venkatrao, Sunnyvale, CA (US);

Assignee:

Sun Microsystems, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/34 (2006.01);
U.S. Cl.
CPC ...
Abstract

Predicting address matches between a read type operation and a write type operation based on address representations allows for efficient RAW bypass. The spatial locality characteristic of code allows for address match prediction with address representations that are smaller than the actual addresses, thus allowing for faster comparison. Operations for performing the RAW bypass commence upon predicting an address match. While these operations are being performed, other operations for verifying the prediction are performed. If the address match prediction is verified, then the RAW bypass has been performed without hindrance. If the address match is proved incorrect, then the corresponding read type operation is reissued and/or re-executed.


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