Saving/restoring task state data from/to device controller...

Details Saving/restoring task state data from/to device controller... Saving/restoring task state data from/to device controller...

2007-12-11

2007-12-11

Kim, Kenneth S. (Department: 2111)

Electrical computers and digital processing systems: processing

Processing control

Context preserving (e.g., context swapping, checkpointing,...

C718S108000

Reexamination Certificate

active

11153122

ABSTRACT:
A system and method for performing an interface save/restore procedure in an electronic device includes a processor that begins to execute a first task in conjunction with a host interface of a display processor. The processor subsequently receives an interrupt request for executing a second task that has a higher priority than the first task. A save/restore module responsively stores task states from the host interface into an interface states register. The task states correspond to an interrupted execution point in the first task. The processor temporarily stops the first task to execute the second task. The save/restore module restores the stored task states to the host interface after the second task is completed, and the processor may then efficiently resume the first task.

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