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标志寄存器FR中有三个控制标志中断控制、----、单步操作控制

时间：2021-09-02 15:30 关键词：联大河南理工大学计算机科学与技术_微机原理与接口技术

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方向控制

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OR是串联常开接点指令，把原来保存在结果寄存器中的逻辑操作结果与指定是继电器内容相“与”，并把这一逻辑操作结果存入结果寄存器。