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. 18, 1994
Filed:
Jan. 03, 1992
Applicant:
Inventors:
Edward G Ryba, Milpitas, CA (US);
Theodore C Bernard, San Jose, CA (US);
Assignee:
Amdahl Corporation, Sunnyvale, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395375 ; 364D / ; 3642318 ; 3642287 ; 364230 ; 3642303 ; 3642624 ; 3642813 ; 3642815 ;
Abstract
A pipeline interlock mechanism which insures the logical integrity of architected control quantities when used to access Domain Storage from Control State. A hardware Domain Interlock (DOMI) is provided to detect the start of execution in Control State of any instruction which modifies architected controls governing the access of Domain storage, and which insures that any subsequent potential access to Domain storage remains interlocked in the D-cycle until the modified controls become valid.