Xref: news2.mv.net comp.os.msdos.djgpp:1989
Newsgroups: comp.os.msdos.djgpp
From: kunst AT natlab DOT research DOT philips DOT com (Pieter Kunst)
Subject: Re: Finding what graphic modes there are
Sender: news AT natlab DOT research DOT philips DOT com (USENET News System)
Message-ID: <DoIM5F.7Dv@natlab.research.philips.com>
Date: Tue, 19 Mar 1996 12:46:27 GMT
References: <617A6926E0 AT fs2 DOT mt DOT umist DOT ac DOT uk>
Organization: Philips Research Laboratories, Eindhoven, The Netherlands
Lines: 11
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

In article <617A6926E0 AT fs2 DOT mt DOT umist DOT ac DOT uk> "A.Appleyard" <A DOT APPLEYARD AT fs2 DOT mt DOT umist DOT ac DOT uk> writes:
[stuff deleted]
>r.h.bl=intno; r.h.bh=0; r.x.cx=0; r.x.di=(int)&S;
>if(intno==0x21 && S.x.ax==0x4b00) {r.x.ax=0xff0a; int86(0x21,&r,&s);} /*child*/
>else {r.x.ax=0x0300; int86(0x31,&r,&s);}
>R=S; return R.d.eax;}
[more stuff deleted]

Perhaps http://reality.sgi.com/csp/ioccc/ is a better platform
to post source code like this :-)