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. 02, 1989
Filed:
Apr. 01, 1987
Gary Bischoff, Saugerties, NY (US);
Dag R Blokkum, Austin, TX (US);
Antonio de Leon Penaloza, III, Cedar Park, TX (US);
David L Peterson, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A plurality of processors or intelligent controllers separately utilize discrete pages of a large memory. Within each of these pages a processor can address a plurality of subdivisions or blocks utilizing the processors' address lines. Thus, separate processors having access to this memory and having a limited addressing capability can utilize a plurality of different pages of this memory, within an identical address range, and nevertheless remain confined to separate memory environments established for each of the separate processors. This is accomplished by use of a hardware register to point the separate processors to their assigned pages of the memory and a stored translate table to point to particular blocks of memory within the pages in accordance with a portion of an address generated by the processor accessing the memory.