Trace of CPU Instruction Reordering

后端 未结 2 405
忘掉有多难
忘掉有多难 2021-02-06 15:08

I have studied a few things about instruction re-ordering by processors and Tomasulo\'s algorithm.

In an attempt to understand this topic bit more I want to know if ther

2条回答
  •  夕颜
    夕颜 (楼主)
    2021-02-06 15:49

    Unfortunately, unless you work for one of these companies, the answer is no. Intel/AMD processors don't even schedule the (macro) instructions you give them. They first convert those instructions into micro operations and then schedule those. What these micro instructions are and the entire process of instruction reordering is a closely guarded secret, so they don't exactly want you to know what is going on.

提交回复
热议问题