From:	p DOT steiner AT t-online DOT de (Peter Steiner)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: djgpp and RAM
Date:	31 Jul 1997 23:19:45 GMT
Organization:	Telekom Online Internet Gateway
Lines:	33
Message-ID:	<5rr6ii$9te$3@news00.btx.dtag.de>
References:	<01bc9dad$1625a480$bee0f9ce AT somebody DOT jaguarsystems DOT com>
Reply-To:	p DOT steiner AT t-online DOT de
Mime-Version:	1.0
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

On 31 Jul 1997 12:29:27 GMT, Locke <lockeg AT usa DOT net> wrote:
>Hey everyone,
>
>I've just started in djgpp and am still trying to understand all the perks
>of a 32 bit programming system.  My understanding is that you can access
>the system ram very easily from a 32 bit program, but that's just what I've
>heard.

Yes, nothing special about it. You don�t even need to know how things work
for most purposes.

>What I'm wondering is, that if I wanted to put say, a two dimensional array
>(a map for a game), in the ram instead of just loading it to conventional
>memory, could I do that?  Or does djgpp do this already?

Just setup the array, as long as you write plain C/C++ there�s no need to
think about �conventional memory� or �system ram�. You have pointers, you
can malloc, that�s it.  In fact �just loading it to conventional memory� is
more complicated than to �put it in the ram�. Get used to not having such
DOS limitations.

Problems may occur if you want to use a specific kind of memory for
some reasons (eg. the screen) but that�s explained in the djgppfaq (18.4 How
to move data between your program and conventional memory?).

Ciao,

Peter Steiner
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