title: Difference between inc si and si +1 in x86
body: <p>I have an array like this in x86[assembly]:</p>
  
  <pre><code>pos[si]
  </code></pre>
  
  <p>To run the array, is any difference between </p>
  
  <pre><code>inc si
  pos[si]
  </code></pre>
  
  <p>and </p>
  
  <pre><code>pos[si+1]
  </code></pre>
  
  <p>?</p>