Xref: news2.mv.net comp.os.msdos.djgpp:6975
From: alaric AT abwillms DOT demon DOT co DOT uk (Alaric B. Williams)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: buffer -> screen transfers
Date: Thu, 08 Aug 1996 19:23:34 GMT
Lines: 18
Message-ID: <839532094.29819.0@abwillms.demon.co.uk>
References: <320647A3 DOT 5827 AT cadvision DOT com>
NNTP-Posting-Host: abwillms.demon.co.uk
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

John Meilleur <meilleuj AT cadvision DOT com> wrote:

>Can anyone help me speed up this bit of code.  I'm writing some hi-res graphics routines and would like to know
>how i can speed up clearing the screen buffer and the buffer transfer.  I know I should be able to do 32-bit
>transfering but I've had no luck with it sofar.  The "video_ds" is the selector to video memory and starts at
>offset 0.  Can any show me how to speed this up alot? TIA 

Just zap the lot in one! Use movedata(), I think, which takes
selector:offset pairs for source and dest. I think there's a dword
version as well, that takes a dword count, but don't quote me on that.

ABW
--
I have become... Comfortably numb...

Alaric B. Williams Internet : alaric AT abwillms DOT demon DOT co DOT uk
<A HREF="http://www.hardcafe.co.uk/Alaric/">http://www.hardcafe.co.uk/Alaric/</A>