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Browse Prior Art Database

Patch Mechanism for a Multiprocessor System

IP.com Disclosure Number: IPCOM000045453D
Original Publication Date: 1983-Mar-01
Included in the Prior Art Database: 2005-Feb-07

Publishing Venue

IBM

Related People

Authors:
Buonomo, JP Houghtalen, SR Losinger, RE Valashinas, JW [+details]

Abstract

In a multimicroprocessor system, where one or more of the microprocessors (MPUs) are provided with and utilize on-chip microcode, it is possible and advantageous to bypass faulty microcode until a permanent fix therefore is implemented. Such a capability is particularly useful in a microprocessor system that is utilizing microcoded MPUs to emulate a main frame instruction set.