From: aho450s AT nic DOT smsu DOT edu (Tony O'Bryan)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Disabling Protected Mode
Date: Mon, 30 Dec 1996 13:14:23 GMT
Organization: Southwest Missouri State University
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Message-ID: <32c7bf23.1450170@ursa.smsu.edu>
References: <5a7r11$o1n$1 AT mhafn DOT production DOT compuserve DOT com>
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To: djgpp AT delorie DOT com
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On 30 Dec 1996 07:29:37 GMT, John Savage <102371 DOT 734 AT CompuServe DOT COM>
wrote:

>I heard there was some way to disable protected mode in DJGPP... 
>what I really want to do is be able to access video RAM directly. 
> Is this possible?	

Disabling protection would defeat the purpose of using a protected
mode environment, but there are a few ways around it.  Section 18.4 of
the FAQ begins the discussion of accessing conventional memory.

You can use dosmemget(), dosmemput(), _farpeekb(), _farpokeb(),
_farpeekw(), _farpokew(), _farpeekl(), _farpokel(), and a few others.