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Decentralized Interrupt Logic For Multiprocessor Systems Using Relative Addressing Of Register Space

IP.com Disclosure Number: IPCOM000066723D
Original Publication Date: 1979-Apr-01
Included in the Prior Art Database: 2005-Feb-20

Publishing Venue

IBM

Related People

Authors:
Bederman, S [+details]

Abstract

Remote processors in this multiprocessing system interrupt the central processor only when a remote processor determines that it requires higher priority program support from the central processor than the program currently being executed by the central processor. In such system configuration, where each of the multiple priority levels can execute a number of different programs having a unique program priority code, relative addressing of register space facilitates performing a context switch from one program to another program at the same priority level as a result of an interrupt.