Method for managing interrupt signals in a real-time computer system

US5875341A · kind A · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Felix Blank · Eßlingen, DE
• Peter Schicklinski · Munich, DE
• Bettina Sterr · Munich, DE
• Ursula Wiesinger · Munich, DE

Key dates

• Filing date: Sep 24, 1996
• Grant date: Feb 23, 1999
• Expiry date: Sep 24, 2016

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F13/24
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

A method for the operation of a computer system controlled by a real-time operating system, which computer system processes interrupt signals. Upon the occurrence of an interrupt signal, the computer system interrupts a program that is to be processed at that time. The acceptance of further interrupt signals is blocked, and an interrupt routine belonging to this interrupt signal is called. During the processing of this interrupt routine, a first part of the program parameters of the program that is interrupted upon the occurrence of the interrupt signal is intermediately stored, and at least one datum concerning the interrupt signal is stored in an interrupt memory. A branching takes place from the interrupt routine to an interrupt management routine (IVR), whereby the acceptance of further interrupt signals is again cleared during the processing of the IVR. During the processing of the IVR, the datum belonging to the interrupt signal is erased; the remaining part of the program parameters of the program that is interrupted upon the occurrence of the interrupt signal is intermediately stored. Dependent on the datum concerning the interrupt signal, at least one reaction routine belo…