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:
Aug. 17, 2010
Filed:
Oct. 23, 2007
James W. Bishop, Endwell, NY (US);
Hung Q. Le, Austin, TX (US);
Dung Q. Nguyen, Austin, TX (US);
Wolfram Sauer, Austin, TX (US);
Benjamin W. Stolt, Austin, TX (US);
Michael T. Vaden, Austin, TX (US);
James W. Bishop, Endwell, NY (US);
Hung Q. Le, Austin, TX (US);
Dung Q. Nguyen, Austin, TX (US);
Wolfram Sauer, Austin, TX (US);
Benjamin W. Stolt, Austin, TX (US);
Michael T. Vaden, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention includes a system and method for implementing a hardware-supported thread assist under load lookahead mechanism for a microprocessor. According to an embodiment of the present invention, hardware thread-assist mode can be activated when one thread of the microprocessor is in a sleep mode. When load lookahead mode is activated, the fixed point unit copies the content of one or more architected facilities from an active thread to corresponding architected facilities in the first inactive thread. The load-store unit performs at least one speculative load in load lookahead mode and writes the results of the at least one speculative load to a duplicated architected facility in the first inactive thread.