I think this link (looking at the ASM instruction you highlight... not the same exact instruction as yours, but it should be the same problem, including the negative argument for the rotate instruction) might help you:<br>
<br><a href="http://www.insomniacgames.com/tech/articles/0807/why_rotqmbybi_is_broken.php">http://www.insomniacgames.com/tech/articles/0807/why_rotqmbybi_is_broken.php</a><br><br>Regards,<br><br>Panajev<br>