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. 31, 1983
Filed:
Sep. 25, 1980
Applicant:
Inventor:
Wing N Toy, Glen Ellyn, IL (US);
Assignee:
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ; G06F / ; G06F / ;
U.S. Cl.
CPC ...
364200 ; 365230 ;
Abstract
The processor's interrupt stack memory and cache memory share a common data memory and are accessed using virtual addresses. A separate address translation buffer (ATB) is used for both the interrupt stack memory and cache memory to perform the virtual address to real address translations which are required to access the common data memory. The cache ATB and a cache controller provide the addressing to access cache data words in the common memory; whereas the interrupt stack ATB alone provides the addressing necessary to access the interrupt stack data words in the common memory.