| 摘要 |
A concurrent multitasking processor (30) for a real-time operating system (RTOS) device includes a plurality of execution units (13,14,15) for executing a plurality of tasks simultaneously and a task selector (3) for comparing priorities of a plurality of tasks and for selecting one or more high priority tasks requesting execution. An instruction fetcher (4) fetches instructions from memory (11) for the tasks selected by the task selector (3) and stores the instructions for each task in one or more instruction queues(10). An instruction issue unit (8) attaches priority tags to instructions and sends instructions from the instruction queues (10) to a plurality of execution units (13,14,15) for execution. |
