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- From: bodoh@cae.wisc.edu (Daniel Bohoh)
- Subject: Re: Quarterdesk Operating System
- Organization: U of Wisconsin-Madison College of Engineering
- Date: 19 Nov 92 15:47:01 CST
- Message-ID: <1992Nov19.154701.6225@doug.cae.wisc.edu>
- References: <1992Nov18.141435.2209@umr.edu>
- Lines: 22
-
- In article <1992Nov18.141435.2209@umr.edu> mcastle@cs.umr.edu (Michael R Castle) writes:
- >Well, with MSDOS having certain reentrancy problems (such as the system
- >coming to a crawl when using floppies), when is QOS going to write QOS??
-
- Someone want a good project for DV? DOS provides a function which
- allows you to swap out the static data areas under certain cases,
- so it can be more re-entrant than it currently is. It would be
- theoritically possible to swap the Dos Swappable Areas (DSA's) and force
- DV to do a task switch when it otherwise wouldn't.
-
- Quarterdeck has not taken advantage of this because certain TSRs which
- capture INT21 maintain their own static state (read: Novell), and
- doing this would break those TSRs. HOwever, one could write it
- as shareware and it could be a Good Thing.
-
- I've thought about this, and maybe I'll think about implementing it
- someday...
- ---------------------------------------------------------
- Daniel J. Bodoh bodoh@cae.wisc.edu
- ECE Department bodoh@xraylith.wisc.edu
- University of Wisconsin-Madison
- Madison, WI 53706
-