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:
Jul. 09, 1996
Filed:
Jun. 30, 1993
Richard J Durante, Citrus Heights, CA (US);
Keith F Underwood, Orangevale, CA (US);
Intel Corporation, Santa Clara, CA (US);
Abstract
A processor which includes at least a pair of call stacks and a pair of register files which may be utilized for running processes. The processor includes circuitry for detecting when an interrupt has occurred and switching from a stack and registers being utilized by a running process to a clean stack and registers to be utilized by the interrupting process. The processor then runs an interrupt start process which places the process interrupted and the circuitry utilized by that process into a condition in which the process may be safely interrupted. Similarly, the process circuitry detects when the interrupt is completed, performs a context switch in which the original stack and register are again made available, and switches to a process adapted to place the interrupted routine in an appropriate state to restart.