目前，这种类型的请求内部会扩展相当于100次大型的取指令操作，所有这些都以低效率的方式保存在内存中。
Currently this kind of requests internally explode into 100's of large fetches, all of which are kept in memory in an inefficient way.
这让处理器可以提前准备分支操作（例如预取指令）。
This allows the processor to prepare for the branch ahead of time (prefetching the instructions, for instance).
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.
在单指令流单数据流结构中，有单一的指令周期，在执行前，单个处理机按序取操作数。
In an SISD architecture there is a single instruction cycle; operands are fetched serially into a single processing unit before execution.
在单指令流单数据流结构中，有单一的指令周期，在执行前，单个处理机按序取操作数。
In an SISD architecture there is a single instruction cycle; operands are fetched serially into a single processing unit before execution.
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