Date:	Fri, 2 Jun 95 13:44:23 EDT
From:	peprbv AT cfa0 DOT harvard DOT edu (Bob Babcock)
To:	djgpp AT sun DOT soe DOT clarkson DOT edu
Subject:	Re: DJGPP in DOS session under OS/2 Warp?
Reply-To:	rbabcock AT cfa DOT harvard DOT edu

> Anyways ... going back to original question ... I think you can run DJGPP 
> in a DOS VDM without any problems.  I was talking to somebody about this 
> just the other day.  The guy I was talking to did mention that there is a 
> "quirk" with the DJGPP GO32 extender in a DOS VDM.  I can't remember what 
> it was 'tho.

The quirk is that you need to use the real-mode gcc when compiling, but this
has no performance implications.  (Remember that gcc is merely a control
program which calls cpp, cc1, etc. to do the real work.)  The other problem
is that, for the most part, the djgpp graphics libraries don't work under
DPMI, nor does the method some programs use to get at the first MB of memory
(including text video memory).  GO32 v2 will be DPMI-only, so requiring that
your code work under DPMI now is a good thing.

- Raw text -