<h1 id="pipeline">Pipeline<a aria-hidden="true" class="anchor-heading icon-link" href="#pipeline"></a></h1>
<p>执行一条命令有以下几步</p>
<ol>
<li>Instruction fetch</li>
<li>Instruction decode and register fetch</li>
<li>Execute</li>
<li>Memory access</li>
<li>Register write back</li>
</ol>
<h2 id="分支预测">分支预测<a aria-hidden="true" class="anchor-heading icon-link" href="#分支预测"></a></h2>
<h2 id="加stall避免数据race">加stall避免数据race<a aria-hidden="true" class="anchor-heading icon-link" href="#加stall避免数据race"></a></h2>