[理工] 计组上册465!

楼主: Aa841018 (andrew)   2018-12-06 15:07:01
https://i.imgur.com/8aQL8K2.jpg
请问(1)其实要问的概念是一样的,以a为例,为何CPI在计算1+0.45*2后还要在+0.05*1

我画出来的结果是,拖延2cycle完全可以救到EX to 2nd only那个,没必要再多花cycle
time吧?
作者: f255577 (沈大妈)   2018-12-06 19:23:00
作者: TEPLUN (mihanami)   2018-12-06 23:18:00
Ex to 2nd只需stall 1 cycle

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