Electrical computers and digital processing systems: virtual mac – Task management or control – Process scheduling
Reexamination Certificate
2004-02-11
2009-10-20
Nguyen, Van H (Department: 2195)
Electrical computers and digital processing systems: virtual mac
Task management or control
Process scheduling
C718S100000, C718S102000, C712S233000, C712S244000, C710S048000, C710S260000, C710S263000, C710S264000, C710S266000
Reexamination Certificate
active
07607133
ABSTRACT:
A data processing system2supporting interrupt handling is provided with an interrupt controller24. The interrupt controller is responsive to save state data when interrupt processing is commenced by pre-emption of existing processing, whether that be background processing or another interrupt. If a further interrupt is required to be executed immediately after the interrupt which triggered the pre-emption, then the speed with which interrupt processing can be started is advantageously increased if that subsequent interrupt processing is performed without restoring and then resaving the original state data. The interrupts in this arrangement can be considered to be chained together without intervening save and restore operations.
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Japanese Official Action mailed Dec. 9, 2008 in corresponding Japanese Application No. 2004-367705, pp. 1-4.
Field Ian
Kimelman Paul
Al Kawsar Abdullah
ARM Limited
Nguyen Van H
Nixon & Vanderhye P.C.
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