btuduri/Steem-Engine — pull request #1 by megar (2012-07-21 09:54:52+00:00)
Title: fix bug with extended resolution

Bug description: http://www.atari-forum.com/viewtopic.php?f=5&t=23696

The bug was triggered by this:
- extended resolution
- d0=0x73
- d1-> unreadable address
- instruction is jsr (a2) or jmp (a2).