Date: Mon, 13 May 1996 13:23:38 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: Michael Schuster <Schuster AT eev DOT e-technik DOT uni-erlangen DOT de>
Cc: djgpp AT delorie DOT com
Subject: Re: How to program DMA (2)
In-Reply-To: <11D3FD6E6D@merlin2.e-technik.uni-erlangen.de>
Message-Id: <Pine.SUN.3.91.960513131950.28052B-100000@is>
Mime-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII


On Mon, 13 May 1996, Michael Schuster wrote:

> > There is also the VDS (virtual DMA services) API that should let you 
> > solve the problems with the DMA and memory mapping.  The problem is that 
> > you need a memory manager that supports VDS to use it, so it won't work 
> > e.g. on a machine that runs CWSDPMI with raw memory or XMS.
> 
> Where can I find/get this?

Ralph Brown's Interrupt list is one source.  VDS API is accessed using a
few functions of Int 4Bh. 

> What do you mean with 'raw memory'?

That means CWSDPMI runs with no memory manager at all and accesses raw 
extended memory.