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. 14, 2001
Filed:
Apr. 22, 1998
Sailendra Koppala, Mountain View, CA (US);
Ravinandan R. Buchamwandla, Sunnyvale, CA (US);
Sun Microsystems, Inc., Palo Alto, CA (US);
Abstract
An instruction pipeline is provided which can handle stack cache misses without stalling. The instruction pipeline includes a stack cache fetch stage configured to retrieve data from a stack cache and a data cache fetch stage configured to retrieve data from a data cache. The instruction pipeline writes data out during a write stage that occurs at the end of the instruction pipeline. Thus, instead of stalling on a stack cache miss, the instruction pipeline can continue processing and issuing a data cache request in the data cache fetch stage for the required data. In addition, some embodiments of the invention include a feedback path between the stack cache fetch stage and pipeline stages following the stack cache fetch stage. If the stack cache fetch stage requires data from an address that is also being used by a later pipeline stage, the data in the later pipeline stage is sent to the stack cache fetch stage through the feedback path.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile