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老房子,是故乡
硬件中断均衡
硬件与cpu沟通有两种方式,一种是中断,另一种是轮询。中断是硬件主动,产生中断信号,中断控制器将信号传递给cpu,cpu停下手中的工作,执行
Posted by hongbing on 2016-05-19
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