Concurrent-multitasking processor
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United States of America Patent
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Issued Date -
Sep 2, 2004
app pub date -
Nov 14, 2003
filing date -
Jun 20, 2001
priority date (Note) -
Abandoned
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Abstract
A concurrent multitasking processor for a real-time operating system (RTOS) device includes a plurality of execution units for executing a plurality of tasks simultaneously and a task selector for comparing priorities of a plurality of tasks and for selecting one or more high priority tasks requesting execution. An instruction fetcher fetches instructions from memory for the tasks selected by the task selector and stores the instructions for each task in one or more instruction queues. An instruction issue unit attaches priority tags to instructions and sends instructions from the instruction queues to a plurality of execution units for execution.
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