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:
May. 16, 1989
Filed:
Feb. 24, 1987
Applicant:
Inventor:
Paul I Rubinfeld, Wayland, MA (US);
Assignee:
Digital Equipment Corporation, Maynard, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
364200 ; 36424231 ; 36424233 ;
Abstract
A processor for use in a digital data processing system including a main memory and one or more input/output units. The processor includes a cache memory. When the processor retrieves data, it may, in response to the condition of internal flags conditioned by the operating system, be stored in the cache. Even if the flags enable retrieved data to be cached, the main memory or input/output units may assert a signal which disables caching.