Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!tronsbox!akcs.reed
From: akcs.reed@tronsbox.UUCP (reed)
Newsgroups: comp.sys.ibm.pc
Subject: DOS 640K barrier?
Message-ID: <2624014d:139.1comp.sys.ibm.pc;1@tronsbox.UUCP>
Date: 12 Apr 90 05:02:41 GMT
References: <78829@tut.cis.ohio-state.edu>
Lines: 20

Hmm, well no-ones abolished the direct 640 Kb limit under MS-DOS, yet. The
extenders ARE quite expensive, from $2400 on up if I remember correctly. And
the only languages supported (by Microsoft) for OS/2 are C and assembler.
Unless someone knows better than me, sounds like you're out of luck in those
areas.

However, all is NOT lost. There are several utility libraries that provide
run-time linking, sophisticated overlay management, or virtual memory. These
packages are generally linked into your program, and will usually require
special instructions in your program to control them. I've never used any of
these, either.

Continuing on with something I've never used myself, how about Unix? Sounds
like you've got the equipment to run it with, and of course it has a larger
program address space as well as OS support for virtual memory. I've been
told that the Microsoft compilers for Unix and DOS are source compatible.

I'd be interested in hearing what you decide and how it works out.

Regards, REED from HighWater Mark BBS (201-985-5486, 2400/8/n/1)