执行过程中的一个阶段所需的时间，在此期间，计算机从主存储器中取出指令或操作数，并将其存入控制器或运算器的寄存器中。
The part of execution in which an operand or instruction is read from main storage and written into a control unit or arithmetic unit register.
即每一个存储在内部存储器上的操作数都有唯一确定的地址(物理地址)，这个地址由两部分构成：段地址和段内偏移地址。
It is to say that each operating data stored in internal memory has its only exact address (physical address), composed of two parts: segment address and effective address.
从分析存储器操作数的存放地址入手，可以更好地理解寻址方式，准确访问存储器操作数。
We can understand the addressing mode better and call it correctly by analyzing the storing position of memory's data operation.
从分析存储器操作数的存放地址入手，可以更好地理解寻址方式，准确访问存储器操作数。
We can understand the addressing mode better and call it correctly by analyzing the storing position of memory's data operation.
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