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:
Jun. 22, 1999
Filed:
Oct. 13, 1997
Jonathan K Ross, Sunnyvale, CA (US);
Jack D Mills, San Jose, CA (US);
James O Hays, San Jose, CA (US);
Stephen G Burger, Santa Clara, CA (US);
Dale C Morris, Menlo Park, CA (US);
Carol L Thompson, San Jose, CA (US);
Rajiv Gupta, Los Altos, CA (US);
Stefan M Freudenberger, Brookline, MA (US);
Gary N Hammond, Campbell, CA (US);
Ralph M Kling, Sunnyvale, CA (US);
Institute For The Development of Emerging Architectures, L.L.C., Cupertino, CA (US);
Abstract
The inventive system and method allows for software control of hardware drral of exceptions in speculative operations, and comprises three components. The first component is processor stored information which reflects the code generation strategy of applications and is used by hardware and the operating system to control exception deferral. The second component is processor stored information set by the operating system to specify to hardware which type of faults should be automatically deferred. The third component is further processor stored information which indicates to the hardware to defer certain exception causing aspects of the speculative operation, while performing other non excepting aspects of the speculative operation. The stored information is set after the operating system exception handler has unsuccessfully attempted fault resolution.