Xref:	news-dnh.mv.net comp.os.msdos.djgpp:4052
Path:	news-dnh.mv.net!mv!news.sprintlink.net!newsfeed.internetmci.com!news.sesqui.net!rice!news!sandmann
From:	Charles Sandmann <sandmann AT clio DOT rice DOT edu>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Video axs in v2 which should be in the faq.
Date:	Thu, 28 Dec 1995 15:34:32 CST
Organization:	Rice University, Houston, Texas
Lines:	9
Message-ID:	<30e30d68.sandmann@clio.rice.edu>
References:	<4brgjt$moq AT supreme DOT pcug DOT org DOT au>
Reply-To:	sandmann AT clio DOT rice DOT edu
NNTP-Posting-Host:	clio.rice.edu
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

> It's simple. In the top(ish) have char *vidmem; and in the initialisation 
> part you must do this (psuedo-ish code, I forgot the function names ;)

This code has a lot of bugs in it.  In particular, a call to sbrk() by
any of the libc routines will reset the limit on DS and cause this to break.
A call to sbrk() may also move the base of the selector - so base_addr is
not a constant, etc.  See sys/nearptr.h and crt0.h for the correct way to do
this (its supported and documented in the next release).

- Raw text -