Nice idea, but reading <a href="http:&#x2F;&#x2F;www.atariarchives.org&#x2F;mapping&#x2F;appendix16.php" rel="nofollow">http:&#x2F;&#x2F;www.atariarchives.org&#x2F;mapping&#x2F;appendix16.php</a>, that doesn&#x27;t work for swapping the stack. Bank switching switches in a 16k block at the access window starting at $4000.