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:
Sep. 14, 2010
Filed:
Jun. 30, 2005
Gilles Eric Grandou, Plascassier, FR;
Phillippe Jean-pierre Raphalen, Valbonne, FR;
Richard Roy Grisenthwaite, Cambridgeshire, GB;
Gilles Eric Grandou, Plascassier, FR;
Phillippe Jean-Pierre Raphalen, Valbonne, FR;
Richard Roy Grisenthwaite, Cambridgeshire, GB;
ARM Limited, Cambridge, GB;
Abstract
A data processing apparatus including a prefetch unit for prefetching the instructions from a memory, branch prediction logic and a branch target cache for storing predetermined information about branch operations executed by the processor. The information includes identification of an instruction specifying a branch operation, a target address for said branch operation and a prediction as to whether said branch operation is taken or not. The prefetch unit accesses said branch target cache at least one clock cycle prior to fetching an instruction from said memory, to determine if there is predetermined information corresponding to said instruction stored within said branch target cache.