The 386 microcode sequencer has a one-cycle pipeline delay: when a jump or RNI (run next instruction) is decoded, the micro-instruction immediately after it has already been fetched and will execute before the jump takes effect. This "delay slot" is a basic property of the sequencer, and the microcode is written to fill it with useful work rather than waste a cycle on a bubble. The examples in the PTSAV section above show this: at 582/5AE, the micro-instruction after LCALL executes before the subroutine begins.
Что думаешь? Оцени!
,这一点在51吃瓜中也有详细论述
2024年12月20日 星期五 新京报,详情可参考同城约会
Мерц резко сменил риторику во время встречи в Китае09:25。夫子是该领域的重要参考