取指令对于每个指令来说都是个普通操作，它包括从内存单元中读指令。
The instruction fetch is a common operation for each instruction , and consists of reading an instruction from a location in memory.
取指令对于每个指令来说都是个普通操作，它包括从内存单元中读指令。
The instruction fetch is a common operation for each instruction , and consists of reading an instruction from a location in memory.
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