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. 15, 2006
Filed:
Nov. 14, 2003
Jeffrey Todd Bridges, Raleigh, NC (US);
Les M. Debruyne, Cary, NC (US);
Robert L. Goldiez, Apex, NC (US);
Michael S. Mcilvaine, Wake Forest, NC (US);
Thomas A. Sartorius, Raleigh, NC (US);
Rodney Wayne Smith, Raleigh, NC (US);
Jeffrey Todd Bridges, Raleigh, NC (US);
Les M. DeBruyne, Cary, NC (US);
Robert L. Goldiez, Apex, NC (US);
Michael S. McIlvaine, Wake Forest, NC (US);
Thomas A. Sartorius, Raleigh, NC (US);
Rodney Wayne Smith, Raleigh, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Method and apparatus for increasing the number of real memory addresses accessible through a translational look-aside buffer (TLB) by a multi thread CPU. The buffer entries include a virtual address, a real address and a special mode bit indicating whether the address represents one of a plurality of threads being processed by the CPU. If the special mode bit is set, the real address associated with the virtual address higher order bits are concatenated with the thread identification number being processed to obtain a real address. Buffer entries containing no special mode bit, or special mode bit set to 0, are processed by using the full length of the real address associated with the virtual address stored in the look-aside buffer (TLB).