slackey@bbn.com (Stan Lackey) (10/13/89)
I can't seem to get the Atari-supplied XEP80 driver to work under MYDOS; the system hangs. What's the fix? Guesses will be gratefully accepted. In lieu of that, I guess I'll have to figure it out myself. Might it have something to do with the relocation crockery? Thanks! -Stan
jean@maxwell.Concordia.CA ( JEAN GOULET ) (10/15/89)
In article <46869@bbn.COM> slackey@BBN.COM (Stan Lackey) writes: >I can't seem to get the Atari-supplied XEP80 driver to work under MYDOS; >the system hangs. What's the fix? Guesses will be gratefully accepted. >In lieu of that, I guess I'll have to figure it out myself. Might it >have something to do with the relocation crockery? > >Thanks! -Stan Stan, I experimented with different combinations of MyDos 4.51 and the XEP80 handler and here's what happened: - Intalled the XEP80 driver as AUTORUN.SYS on a MyDos disk and booted with BASIC, and I did get into 80-column mode. - Did the above but held down OPTION to disable BASIC. It did blank out the screen temporarily but then it went to the MyDOS menu (in 40-columns). - When I type DOS from BASIC, I lose 80-columns and end up at the DOS menu in 40-columns, and I can't reenter 80-columns (handler disappears from HATABS). - Booted from a disk with DOS.SYS and DUP.SYS only, and tried to load the handler from the menu. It blanked the screen but I didn't see any characters. It didn't lock up, though, because I could still hear my keystrokes, and I was still in the menu because when I hit 1 to get a directory, the drive started up. Conclusion: DUP.SYS is the culprit. It seems to do a warmstart that modifies the handler table. It might also be playing with the display list pointers, as well as other display registers. This is only a guess, and seeing as I don't use MyDOS (or any other DOS that needs a DUP.SYS - blecch!), I can only suggest that you use DOS XL as I do, or reprogram MyDOS. Happy hacking. Jean Goulet Electrical Engineering Class of '89 Concordia University Montreal, Canada