title: Overflowing a register
body: <pre><code>mov al,0ffh
  add al,5
  </code></pre>
  
  <p>My question is how can I know what will be the value of al after the add line with using the debugger?
  And where is the reminder?</p>
  
  <p>Just for the record, the value of al after those 2 lines is 0FEh</p>
  
  <p><strong>EDIT</strong> the value is 0x04h</p>