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:
Aug. 09, 1994
Filed:
Nov. 18, 1993
Robert P Ryan, Marlborough, MA (US);
John B Crowther, Nashua, NH (US);
Robert A MacDonald, Derry, NH (US);
Wang Laboratories, Inc., Lowell, MA (US);
Abstract
Apparatus for use in a multi-CPU data processing system (10) wherein each CPU (12-18) is coupled to a common bus (20) and through the common bus to a main memory (28). The apparatus provides a program, such as an operating system, that is operating upon each of the CPUs access to a page of data within the main memory. Each of the CPUs generates a first address for identifying a memory location or locations within a page of the main memory. The first address is modified as a function of the first address and as a function of an identification of the CPU to generate a second address for identifying a memory location or locations that are either within the same page or within another page of the main memory. The modified second address is applied to the memory for accessing the memory location or locations.