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. 25, 2003
Filed:
Jan. 07, 2000
Tomohiko Kadowaki, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A processor apparatus which reduces an overhead at the time of switching processing modules and efficiently performs desired processing at a high speed, wherein desired processing is performed by prefetching a series of instructions by a main program prefetcher, pre-decoding the same by a pre-decoder, and supplying the same to a decoder and execution unit via a multiplexer. When an instruction to execute a macro command is detected in the pre-decoder, the instructions of the macro command are prefetched by a macro program prefetcher and pre-decoded in the pre-decoder. As a result, when branching to a macro command, the instructions of the macro command can be immediately supplied to an execution unit only by switching the multiplexer.