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, 2015
Filed:
Sep. 26, 2013
Andes Technology Corporation, Hsin-Chu, TW;
Zhong-Ho Chen, Taichung, TW;
Wei-Hao Chiao, Hsinchu, TW;
ANDES TECHNOLOGY CORPORATION, Hsin-Chu, TW;
Abstract
A microprocessor is provided, which includes a processor core and an instruction loop cache. The processor core provides a fetch address of an instruction stream. The fetch address includes a tag and an index. The instruction loop cache receives the fetch address from the processor core. The instruction loop cache includes a cache array and a tag storage. The cache array stores multiple cache entries. Each cache entry includes a tag identification (ID). The cache array outputs the tag ID of the cache entry indicated by the index of the fetch address. The tag storage stores multiple tag values and output the tag value indicated by the tag ID output by the cache array. The instruction loop cache determines whether a cache hit or a cache miss occurs based on a bitwise comparison between the tag of the fetch address and the tag value output by the tag storage.