Date:	Thu, 1 Dec 1994 19:47:28 -0500 (EST)
From:	Long Doan <ldoan1 AT osf1 DOT gmu DOT edu>
To:	Angelo Ferrigno <aferrign AT iisst3 DOT italy DOT ncr DOT com>
Cc:	DJGPP Mailing List <djgpp AT sun DOT soe DOT clarkson DOT edu>
Subject:	Re: DESQView/X

On Thu, 1 Dec 1994, Angelo Ferrigno wrote:

> I'd like to purchase a copy of DV/X for my PC at home. Two questions:
> 1) Is latest release of DV/X (I think it's Rel. 2.x) compatible with
> DJGPP 1.12 (I have heard they use a cheated version of go32, I don't know
> which release). Any known problems or caveats?
  
  DJGPP 1.12 is "compatible" with DV/X (i.e. I was able to use a GNU 
compiler to produce a 10Mb X client and run it under DV/X with djgpp 1.12.)
The program (run under a DX2 66, 20M RAM) crashes quite frequently under 
heavy demands (mode switchings: It installs a 1ms interrupt, and every 
1/18.2 secs, call the old realmode DOS ISR; go32 does a lot of paging 
(again, switch to realmode;) and mouse/keyboard events.)  The program is 
the only one run under the XServer, and access memory using VCPI calls.
  Other programs (smaller in size and demands) run fine.

> 2) Will DJGPP V2.0 be compatible with DV/X?

  If you can write a program that runs happily under DPMI (a must under 
djgpp v2.0,) you should have no problem to run it under DV/X.

+--------------------------------------------------------+
| Long Doan                          ldoan1 AT osf1 DOT gmu DOT edu |
|                                          ld AT netrix DOT com |
+--------------------------------------------------------+

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