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术语 nooperation memory protect
释义 nooperation memory protect
存储器保护空操作;[记忆器保护无作业指令]
A special procedure developed to protect the contents of specific sections of storage from alternation by inhibiting the execution of any type of memory modification instruction upon detection of the presence of a guard bit associated with the accessed memory location. Such instructions which access protected memory are most often executed as a no operation or a special violation program interrupt is generated.
为保护存储器特定区段中的内容而采用的一种特殊措施。当检测到与被访问存 储单元相联系的保护位时,禁止执行任何企图修改其中的存储内容的指令。当产生空操作 或特殊的非法程序中断时,经常要执行这种访问,保护存储器的指令。
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