title: What does ESP mean in assembly?
body: <pre><code>ESP = ? stack pointer
  </code></pre>
  
  <p>What does <strong>E</strong> stand for here?</p>
  
  <p><strong>UPDATE</strong></p>
  
  <p>RSP for 64bit?</p>
  
  <p>What does <code>R</code> mean here?</p>