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From:	Rugxulo <rugxulo AT gmail DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Dos programming
Date:	Fri, 20 Mar 2009 05:35:24 -0700 (PDT)
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To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp
Reply-To:	djgpp AT delorie DOT com

Hi,

On Mar 20, 3:52=A0am, Robert Riebisch <Robert DOT Riebi DOT  DOT  DOT  AT arcor DOT de> wrote:
> Rod Pemberton wrote:
>
> > AFAICT, there aren't many DOS .sys device drivers with source. =A0I thi=
nk
> > that's the only one I've found that's Public Domain (not copyrighted).
>
> My FIX8X14 (<http://www.bttr-software/fix8x14/>) is not Public Domain,
> but GNU GPL v2.

There are various device drivers (e.g. Japheth's SETMxx) out there.
Heck, FASM comes with one example (although honestly I don't know what
it does, if anything).

As far as simple and public domain, I do know of one that does the
simple ROT13 cypher (but it didn't work with FreeDOS last I checked
due to the kernel erroneously trying to read from it, reported but
still unfixed, obviously not important though):

http://www.programmersheaven.com/download/1441/download.aspx

http://www.mail-archive.com/freedos-kernel AT lists DOT sourceforge DOT net/msg02040.h=
tml

Anyways, Eric Auer has written a few (moresys, sysmem) that include
sources, GPL I think. And Martin S.'s FDXMS stuff exists too
(assembler-with-cpp). And Jack Ellis' drivers too.

Yeah, so there are various examples. Doesn't mean I've ever studied
them too closely, though.

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