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:
Nov. 10, 2009
Filed:
Nov. 15, 2004
Takahito Hirano, Kawasaki, JP;
Iwao Yamazaki, Kawasaki, JP;
Tsuyoshi Motokurumada, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The present invention comprises, for enabling sharing an address translation buffer (TLB=Translation Lookaside Buffer) between plural threads without generating undesirable multi-hits in an information processor which operates in multi-thread mode, an address translation buffer for storing address translation pairs and thread information, a retriever for retrieving an address translation pair of a virtual addresses identical to said virtual address from the address translation buffer for translating the virtual address into a physical address, a determination unit for determining, when plural addresses translation pairs are retrieved by the retriever, whether or not two or more of said thread information are identical among plural thread information corresponding to plural address translation pairs, and a multi-hit controller for suppressing output of multi-hits and directing execution of address translation if the thread information are determined to be different according to the determination unit.