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:
Mar. 03, 1998
Filed:
Aug. 05, 1996
Abstract
A data processing system for decoding instructions in parallel in a superscalar, complex instruction set computing (CISC) computer. In a training mode of operation, an encrypter 29 encrypts preprocessed instructions retrieved from an instruction cache 26. In a processing mode of operation, instruction information is fetched and decrypted in decrypter 30. A prefetcher 21 separates the fetched instruction according to the decrypted boundary information. An instruction length verifier 25 verifies that the instructions were separated correctly and controls decoders 22a-c according to the verification. If the verification is correct for a given set of instructions, the system processes the instructions in parallel through the decoders to a dispatch logic circuit 23 and then to functional units 24. If the verification is incorrect, those related instructions may be needed to decode serially.