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:
Oct. 09, 2012
Filed:
Sep. 26, 2008
Liang Chen, Shanghai, CN;
Kuan Feng, Shanghai, CN;
Wang Zheng, Cambridge, GB;
Min Zhu, Shanghai, CN;
Liang Chen, Shanghai, CN;
Kuan Feng, Shanghai, CN;
Wang Zheng, Cambridge, GB;
Min Zhu, Shanghai, CN;
International Business Machines Corporation, Armonk, NY (US);
Abstract
The present invention provides an overlay instruction accessing unit and method, and a method and apparatus for compressing and storing a program. The overlay instruction accessing unit is used to execute a program stored in a memory in the form of a plurality of compressed program segments, and compresses: a buffer; a processing unit for issuing an instruction reading request, reading an instruction from the buffer, and executing the instruction; and a decompressing unit for reading a requested compressed instruction segment from the memory in response to the instruction reading request of the processing unit, decompressing the compressed instruction segment, and storing the decompressed instruction segment in the buffer, wherein while the processing unit is executing the instruction segment, the decompressing unit reads, according to a storage address of a compressed program segment to be invoked in a header corresponding to the instruction segment, a corresponding compressed instruction segment from the memory, decompresses the compressed instruction segment, and stores the decompressed instruction segment in the buffer for later use by the processing unit.