merlin@hqda-ai.UUCP (David S. Hayes) (09/01/87)
My brother works with a surveying company. They use several
bits of CAD software to do their drafting. Because accuracy of
the maps is absolutely critical, they use a very-high-resolution
graphics display. Most of this software, and the device driver
for the display, are only available in MS-DOS versions.
He would like to move to Xenix, but they can't abandon the
development already done in the MS-DOS environment. I know there
are software packages that allow DOS programs to be run under
Xenix, but I don't know how good they are. I would like to find
out:
1. How do these programs handle terminate-and-stay-resident
programs? How do they run custom device drivers? Do these
programs actually load a DOS image, or do they simulate DOS?
2. If the DOS program wants to do things like direct I/O port
access, is this allowed?
3. Where do I get these programs?
I don't normally read these groups (my PC is a Sun-3), so
please use EMAIL to reply. If anyone expresses an interest, I'll
summarize in about 2 weeks.
Adv [thanks] ance
--
David S. Hayes, The Merlin of Avalon PhoneNet: (202) 694-6900
UUCP: *!seismo!sundc!hqda-ai!merlin ARPA: merlin%hqda-ai@seismo.css.gov