Interrupt scan and processing system for a data processing syste

Details Interrupt scan and processing system for a data processing syste Interrupt scan and processing system for a data processing syste

1975-06-30

1977-04-26

Shaw, Gareth D.

Communications: electrical

Digital comparator systems

G06F 918

Patent

active

040204715

ABSTRACT:
In a data processing system, interrupt service is provided for any one of a plurality of interrupt sources which presents an interrupt signal which has a higher interrupt level than that of the currently active source. Interrupt flags are provided for each potential interrupt source, which flags are activated in response to the receipt of an interrupt signal from the interrupt source associated therewith. A scan for the highest interrupt level is made and interrupt service is provided for the interrupt source associated therewith.

REFERENCES:
patent: R28221 (1974-11-01), Benghias
patent: 3490003 (1970-01-01), Herold et al.
patent: 3909790 (1975-09-01), Shapiro et al.
patent: 3949371 (1976-04-01), Pederzini

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