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:
Jul. 02, 2002
Filed:
Jun. 03, 1999
Pieter Van Der Wolf, Eindhoven, NL;
Kornelis A. Vissers, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
The data processor contains a memory and a data prefetch unit. The data prefetch unit contains a respective FIFO queue for storing prefetched data from each of a number of address streams respectively. The data prefetch unit uses programmable information to generate addresses from a plurality of address streams and prefetches data from addresses successively addressed by a present address for the data stream in response to progress of execution of a program by the processor. The processor has an instruction which causes the data prefetch unit to extract an oldest data from the FIFO queue for an address stream and which causes the data processor to use the oldest data in the manner of operand data of the instruction.