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).
当外部代理具有数据时，产生并发出预取指令。
When the external agent has data, it may create and issue a prefetch directive.
对于大循环，调度预取距离可设置为1(即，预取指令附在第一次迭代前)。
For large loops, prefetch scheduling distance can be set to 1 (that is, schedule prefetch instructions one iteration ahead).
该预取指令可以与系统互连事务一起或作为单独的事务发送到系统中包括所述目标处理器的设备。
The prefetch directive may be sent along with system interconnection transactions or sent as a separate transaction to devices including the target processor in the system.
在获取每条指令期间会出现某种延迟，可以通过预取指令并对其进行存储以用于后续的执行，从而避免延迟。
Fetching each instruction involves a certain latency that can be avoided by prefetching instructions and storing them for later execution.
在获取每条指令期间会出现某种延迟，可以通过预取指令并对其进行存储以用于后续的执行，从而避免延迟。
Fetching each instruction involves a certain latency that can be avoided by prefetching instructions and storing them for later execution.
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