Method and apparatus for preserving the context of tasks during task switching in a pipeline architecture
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United States of America Patent
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Dec 14, 2010
Grant Date -
Jan 12, 2006
app pub date -
Jul 7, 2005
filing date -
Jul 7, 2004
priority date (Note) -
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Abstract
A microprocessor executes programs in a pipeline architecture including a task register management unit that, if a switch instruction to a second task is issued when a plurality of units executes a first task, switches a value of a task register to second register information that is used when the second task is executed after the execution of the first task is completed and a task manager that switches a value of a task identification information register to a second task identifier after the value is switched to the second register information, and grants each of the plurality of units permission to execute the second task.
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