This paper analyses the return instruction of MCS-51 and gives the answer to releasing the interrupt. Some special use and program are also given.
分析了MCS一51单片机返回指令，解决了如何释放中断逻辑的问题，并给出一些特殊用法及实用程序。
Execute a Return from Interrupt instruction;
执行中断返回指令；
Execute a Return from Interrupt instruction;
执行中断返回指令；
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