delorie.com/archives/browse.cgi   search  
Mail Archives: djgpp/1994/02/11/09:24:58

Date: Fri, 11 Feb 94 09:06:22 -0500
From: DJ Delorie <dj AT ctron DOT com>
To: babcock AT cfa DOT harvard DOT edu
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu, babcock AT cfa DOT harvard DOT edu
Subject: Re: Help with gcc and EISA cards

> Would the mythical DPMI 1.0 allow mapping this physical segment so that it
> could be accessed without using "far" pointers?  The question of how to
> access special devices out beyond 1MB will keep coming up, and for things
> like image processing, the overhead of copying to ordinary memory can hurt
> performance.

Yes, DPMI 1.0 will sove this.  Don't hold your breath waiting for it -
I don't think it will ever happen.  I was hoping that somehow gcc
could be taught about far pointers so that it would do this for us,
but again - don't hold your breath.


- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019