From:	"Michel Chassey" <cecile AT megacom DOT net>
Newsgroups:	comp.os.msdos.djgpp
References:	<1 DOT 5 DOT 4 DOT 16 DOT 19990801161857 DOT 1a2f7b02 AT erie DOT net> <tofp3.17474$yD2 DOT 37662 AT newsfeeds DOT bigpond DOT com>
Subject:	Re: Questions
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Message-ID:	<M0up3.39266$Q4.58955@wagner.videotron.net>
Date:	Tue, 3 Aug 1999 00:02:06 -0300
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To:	djgpp AT delorie DOT com
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UPX is available at this page :
http://wildsau.idv.uni-linz.ac.at/mfx/upx.html
Enjoy :-)
Michel Chassey

Johan Venter <jventer AT writeme DOT com> a écrit dans le message :
tofp3.17474$yD2 DOT 37662 AT newsfeeds DOT bigpond DOT com...
> Rich wrote in message <1 DOT 5 DOT 4 DOT 16 DOT 19990801161857 DOT 1a2f7b02 AT erie DOT net>...
> >  1) does the DJGPP _always_ make a 32-bit exe, or _only_ when certain
> >compiler directives are in place?
>
> It always makes 32-bit protected mode executables.
>
> >  2) actual DPMI functions _only_ become available when specific
> >"dmpi-activating" instructions are used ?
>
> The DPMI services are always available (and required) when useing
DJGPP-created programs.
>
> >  3) I wish to learn more about how DJGPP seems to interface well with
> >16-bit DOS drivers/TSR's, considering its 32-bit.
>
> Well, there are a number of ways:
>     1. The DOS extender helps with this.
>     2. Programs can be written to use special features of DJGPP for
accessing 16-bit
> things (especially interrupts).
>
> >  4) How on earth can I reduce the size of a simple djgpp program?!?!
> >    printf("Hello DJGPP!\n"); consumed 103K for the EXE !! and contained
> >    tons of debug/stub info!
>
> Compile with the -s (that's a SMALL s) command line option, that will
strip all your debug
> info (making it impossible to debug the program properly).
> Also, look for an EXE file compressor named UPX.
>
> >  I notice some people are designing "Windows 95" applications which
> >claim to support Long-Filenames, "pixview" being one of them.
> >  When I run this program in Win95 I still see ~ in the filenames...
>
> DJGPP is natively compatible with Windows 9x long file names. They don't
work on Windows
> NT though.
>
> >I am MOST INTERESTED in books which provide information on the library
> >functions (djgpp version of the C/C++ runtime library).
>
> Why not read the source? That must be the best way to learn how they work.
>
> --
> Johan Venter
> ICQ 3643877
> Visit The TPU DJGPP Interest Group:
> http://surf.to/djgppig
>
>
>

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