Browse Prior Art Database

Method of Saving Error Data

IP.com Disclosure Number: IPCOM000038888D
Original Publication Date: 1987-Mar-01
Included in the Prior Art Database: 2005-Feb-01

Publishing Venue

IBM

Related People

Authors:
Davis, GW Ide, RA Webb, JF [+details]

Abstract

Extended error data can be saved for analysis in digital equipment incorporating a microprocessor and diskette by recording the data on the diskette when a high level interrupt occurs, such as interrupt level O. An Extended Errorlog can be achieved by a sequence of identifying error type and necessary recovery; recording a "snapshot" of the present state of hardware and microcode data in microprocessor memory; suspending awaiting jobs; and initiating commands to hardware and lower interrupt levels for an orderly recovery and diskette recording of the error data. An arrangement of microcode architecture for automatically saving extended error data is described with reference to the figure. The microcode units operate as follows: A.