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:
Jan. 12, 1993
Filed:
Nov. 16, 1989
Applicant:
Inventor:
Eric H Jensen, Livermore, CA (US);
Assignee:
Sun Microsystems, Inc., Mountain View, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395425 ; 364D / ;
Abstract
A processor having a plurality of windowed registers comprising IN, OUT and local window registers, where the IN registers of each window are addressable as the OUT registers of a logically-adjacent succeeding window. The processor also having a cache of two sets of IN/OUT registers with switchable addresses and a set of local cache registers. The addresses of the first set of IN/OUT registers can be changed to the addresses of the second set of IN/OUT registers, and vice versa, when the current window changes during a save or restore operation.