如题,有没有人可以解释中断抢先原则?这个与中断嵌套是一个概念吗?
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也就是说,如果有两个中断A、B。
A的优先级比B高,当执行A的中断服务子程序的时候,B中断发生,则CPU会切换到B的中断服务子程序,执行完B的中断服务子程序后再执行A的中断服务子程序?