From: "Ben Peddell" <lightspeed85 AT hotmail DOT com>
Newsgroups: comp.os.msdos.djgpp
References: <BQ2S9.280216$a8 DOT 123208 AT news4 DOT srv DOT hcvlny DOT cv DOT net> <3pii1vkro878ujd0dlsa95mqgudtp86lvs AT 4ax DOT com> <b23b7e$bjk$1 AT wildfire DOT prairienet DOT org>
Subject: Re: Generate real-mode 386 DOS executables?
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Date: Sun, 9 Feb 2003 04:42:05 +1000
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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

If you want real-mode code, you can do it with GCC. However, there is a fair
bit of work involved (you've got to make sure that the code and data fits in
64kB, otherwise you've got to do the segmentation by hand; and you've got to
make your own libraries). GCC is natively 32-bit, and DJGPP natively uses
DPMI.
I love GCC since 3.2.1, since I can now assemble fully in Intel syntax, and
I can make code that'll even run on a lowly 8086.

Scott J. McCaughrin <sjmccaug AT bluestem DOT prairienet DOT org> wrote in message
news:b23b7e$bjk$1 AT wildfire DOT prairienet DOT org...
> Andrew Cottrell <andnews AT ihug DOT com DOT oz DOT au> wrote:
>
> : On Sun, 05 Jan 2003 23:02:57 GMT, Spam Averse <nobody AT spamcop DOT net> >I
> : have a project that is currently built with Borland's Turbo C/C++
> : v3.0.
> :>(For you youngsters, this circa 1992 compiler generates 16-bit DOS
> :>executables for the 86/186/286 CPUs.)  The code is run on a
Pentium-based
> :>embedded system under MS-DOS v6.22.  Not only does this compiler not
> :>generate 32-bit code, but the code that it does generate is terribly
> :>inefficient.  I'm considering DJGPP as a replacement for the Turbo C/C++
> :>compiler.
>
>  The question remains: is DJGPP really for MS-DOS? If so, then I should
>  be able to make 16-bit INT 21h DOS function calls. If I cannot make
>  such calls, it is really not DOS-compliant. So which is it?
>