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Mail Archives: djgpp/1994/11/28/19:51:11

From: Charles Sandmann <sandmann AT new-orleans DOT NeoSoft DOT com>
Subject: Re: v2 & descriptors
To: gold AT ccr-p DOT ida DOT org (David Goldschmidt)
Date: Mon, 28 Nov 1994 09:22:43 -0600 (CST)
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu

> Following up on the original poster's line of thought: Although us user-level
> types have no need to know, I suspect some of us (myself certainly included)
> are curious about what DPMI is, what it does, and how it works.  (Not to
> mention the myterious VCPI ...) Is there any enlightenment available?

DPMI = DOS Protected Mode Interface

DPMI is the "rules" on how to get to protected mode under Windows or OS/2.
A copy of the 0.9 specification is available via ftp from
qdeck.com:/pub/memory/dpmispec.zip

Other specifications like VCPI are also available in this directory.

If you write standard C code you couldn't care less about any of this.
If you want to write PC specific code, DPMI tells how to do it.

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