Date: Mon, 13 Mar 2000 11:38:14 +0200 (IST)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
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To: bob tway <tway AT wibble DOT com>
cc: djgpp AT delorie DOT com
Subject: Re: help...
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On Sun, 12 Mar 2000, bob tway wrote:

> i am new to djgpp having used borland 4.51 mostly.can someone explain
> the difference between real and protected mode,

This is a very large topic.  One place where you can find a general
introduction related to DJGPP is here (I hope the URL is correct, I 
cannot check it right now):

  http://www.delorie.com/djgpp/eli-m17n99.html

The first few sections of chapter 18 in the DJGPP FAQ list
(v2/faq230b.zip from the same place you get DJGPP) is another place,
which explains specific aspects of low-level programming in the DJGPP
environment.

> and also the difference between int86 and __dpmi_int.

See section 18.1 of the FAQ.

> i am trying to
> learn how to use Vesa to do graphics stuff,but am having trouble
> mapping the linear frame buffer.

See sections 18.2 through 18.5 of the FAQ.