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Method for determining if a delay required before proceeding with the detected interrupt and exiting the interrupt without clearing the interrupt
Method for determining if a delay required before proceeding with the detected interrupt and exiting the interrupt without clearing the interrupt
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机译:在不清除中断的情况下确定继续进行检测到的中断并退出中断之前是否需要延迟的方法
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摘要
A method and system for servicing an interrupt is presented. An interrupt handler associated with a detected interrupt is invoked, and a determination is made as to whether to instantiate a delay before further servicing of the detected interrupt. If a delay is neccesary before the detected may be fully serviced, a delay counter is initialized to a first predetermined value. The interrupt handler then exits without fully servicing the detected interrupt. During subsequent invocations, the interrupt handler decrements the delay counter and checks whether the delay counter has reached a second predetermined value. The interrupt handler is repeatedly invoked while the interrupt remains pending and while the delay counter does not equal the second predetermined value, the interrupt handler may then fully service the interrupt and clear the interrupt.
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