From:	mapson AT mapson DOT com (mapson)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: Use of ALLEGRO and DJGPP on a 386sx?
Date:	Fri, 08 Aug 1997 19:05:15 GMT
Organization:	Yale University
Lines:	25
Message-ID:	<33eb6c39.13764647@news.cis.yale.edu>
References:	<33EB48AB AT relay DOT probe DOT co DOT uk>
NNTP-Posting-Host:	slip-ppp-node-02.cs.yale.edu
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

On Fri, 8 Aug 1997 16:23:00 GMT, "Hargreaves, Shawn"
<shawnh AT probe DOT co DOT uk> wrote:


>The problem with Allegro 1.x was probably because that was back before
>I learned about memory locking. If it started swapping to disk, kaboom!   
>:-)
>The locking code was one of the first things I added in the transition to
>v2.0.

I;ve seen references to this before. And I;ve read that I must watch
out for it. But what is this memory swapping all about- for instance,
what sort of variables or data are threatened by diskswap? Pointers,
arrays? and how do I "lock down" my memory (malloc/new?!)

Please post in thread.

BTW, I've run a voxel demo made with Allegro on a 386sx with one meg
total RAM... and most incredible, in something like DOS 3.0! and it
ran fine. I was impressed.

I then tried to do some DJGPP compiling on this machine... takes about
5 minutes to compile a "Hello World!' program! I gave it an hour on a
real program; then gave up.

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