公开(公告)号：BR8902352A

公开(公告)日：1990-01-09

申请号：BR8902352

申请日：1989-05-19

Applicant: IBM

Inventor： BOCK DIETRICH W ,  GRASSMANN KURT ,  RUDOLPH PETER ,  SCHULZE-SCHOELLING HERMANN

IPC: G06F11/00 ,  G06F11/07

公开(公告)号：CA1316608C

公开(公告)日：1993-04-20

申请号：CA594646

申请日：1989-03-23

Applicant: IBM

Inventor： BOCK DIETRICH W ,  GRASSMANN KURT ,  RUDOLPH PETER ,  SCHULZE-SCHOELLING HERMANN

IPC: G06F11/00 ,  G06F11/07

Abstract: Arrangement for Error Recovery in a Self-Guarding Data Processing System In self-guarding data processing systems most of the error handling activities have to be implemented without any program support from a dedicated subsystem which is secured against the error problems which it has to handle. The self-guarding data processing system must be reset and restarted to handle the error procedures by itself. This means that the error status manifested in many check latches has to survive the reset and restart activities and that it has to be accessible by instructions within the processor in error. Check indicator latches are provided which are set by the error signals and which are read by the error handling program routines for further evaluation. They can only be reset by the error handling program routines.