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

Details Method for managing interrupt signals in a real-time computer sy Method for managing interrupt signals in a real-time computer sy

1996-09-24

1999-02-23

An, Meng-Ai T.

395735, 395736, 395737, 395738, 395739, 395740, 395741, 395742, 395591, G06F 1300

Patent

active

058753419

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 belonging to this interrupt signal is activated. After the processing of the IVR, the operating system branches back to the program that was interrupted upon the occurrence of the interrupt signal, using the intermediately stored program parameters.

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