title: assembly language in os x
body: <p>I used assembly language step by step to learn assembly language programming on linux. I recently got a Mac, on which <code>int 0x80</code> doesn't seem to work (illegal instruction). </p>
  
  <p>So just wanted to know if there is a good reference (book/webpage) which gives the differences b/w the standard unix assembly and darwin assembly.</p>