instruction fetch cycle

• 1. 取指令周期: fetch cycle | instructionfetchcycle | instruction fetch cycle
• 2. 指令提取周期: instruction fetch cycle
• 3. 机器指令取出周期: machine instruction fetch

• 1.流水线 是 CPU 所使用的一个众所周知的概念，它用于减少取指令-译码-执行 周期中出现的延迟。
  Pipelining is a well-known concept employed by CPUs for reducing the latency involved in the fetch-decode-execute cycle.
  dict.yoduao.com
• 2.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.
  dict.yoduao.com

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