Context switching pipelined microprocessor

Details Context switching pipelined microprocessor Context switching pipelined microprocessor

2005-07-05

2005-07-05

Pan, Daniel H. (Department: 2183)

Electrical computers and digital processing systems: processing

Dynamic instruction dependency checking, monitoring or...

Reducing an impact of a stall or pipeline bubble

C712S228000, C713S323000, C713S401000, C710S117000, C709S241000

Reexamination Certificate

active

06915414

ABSTRACT:
A single shared processing path is used as contexts are switched during processing. Each unique context is processed using a corresponding unique pipeline. If a pipeline that is executing under one context stalls, processing is switched in the shared processing path to another pipeline that is executing under second context. New pipelines are enabled for execution by borrowing a clock cycle from the currently executing pipeline. In some cases contexts are assigned various relative priority levels. In one case a context switching microprocessor is used in a communication engine portion of a system-on-a-chip communication system.

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