分支提示至少是分支指令之前的4个指令取出组，否则就没有效果。

At minimum, the branch hint must be four instruction fetch groups before the branch instruction, or it will have no effect.

youdao

如果某个文件因为指令取出发生了缺页，那么会将非计算性文件转换为计算性状态。

When a page fault is taken on a file due to an instruction fetch, only the non-computational file transitions to the computational state.

youdao

要想让分支提示变得非常有效(这样分支就根本不会暂停了)，就必须设置至少4个指令取出组和分支指令之前的11个周期。

For a branch hint to be most effective (so that the branch does not stall at all), it must be set at least four instruction fetch-groups plus 11 cycles before the branch instruction.

youdao

And those instructions, by the way, are very simple: they're things like, take the value out of two places in memory, and run them through the multiplier in here, a little piece of circuitry, and stick them back into someplace in memory.

顺便说一句，那些指令非常简单：,他们从记忆存储器中,取出两个位置的结果，在倍增器中运行，一小部分电路，再将它们插回存储器中的某些地方去。

麻省理工公开课 - 计算机科学及编程导论课程节选