title: How is a 2 pass-assembler different from a one pass assembler in resolving the future symbols?
body: <p>These are 2 questions that I don't understand:</p>
  
  <ol>
  <li><p>How does the One-Pass Assembler resolve the future symbol problem?</p></li>
  <li><p>How is Two-Pass Assembler different from the one pass assembler in this respect?</p>
  
  <p><em>Does it resolve it in the first pass or the second pass? If it does it in the second pass,where does it actually differ from the one-pass-assembler? If it does it in the second-pass why doesn't it do in the first pass?</em></p></li>
  </ol>