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:
Mar. 09, 1999
Filed:
Dec. 10, 1996
Mark S Shipman, Hillsboro, OR (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A computer system is programmed with basic input/output services (BIOS), including an initialization service, and an associated virtual mode execution monitor. The initialization service scans for option ROMs of add-on devices at power on/reset. For each detected option ROM, the initialization service creates the runtime definition of its initialization task, setting up the initialization task to be executed in a virtual mode, redirecting all interrupts and exceptions arisen during execution of the initialization task to the virtual mode execution monitor. For each redirected interrupt/exception, the virtual mode execution monitor either allows the triggering attempted operation to be performed, or substitutes an impermissible triggering attempted operation with one or more fail safe recovery operations, or simply terminates the 'ill-behaving' initialization task.