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:
May. 03, 2016
Filed:
Aug. 19, 2013
Apple Inc., Cupertino, CA (US);
Andrew M. Havlir, Austin, TX (US);
Sreevathsa Ramachandra, Austin, TX (US);
William V. Miller, Austin, TX (US);
Apple Inc., Cupertino, CA (US);
Abstract
Techniques are disclosed relating to arbitration of requests to access a register file. In one embodiment, an apparatus includes a write queue and a register file that includes multiple entries. In one embodiment, the apparatus is configured to select a request from a plurality of requests based on a plurality of request characteristics, and write data from the accepted request into a write queue. In one embodiment, the request characteristics include: whether a request is a last request from an agent for a given register file entry and whether the request finishes a previous request. In one embodiment, a final arbiter is configured to select among requests from the write queue, a read queue, and multiple execution pipelines to access banks of the register file in a given cycle.