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Date:      Sun, 29 Sep 1996 19:14:37 -0700 (PDT)
From:      Jonathan Mini <j_mini@efn.org>
To:        Alexey Pialkin <root@abel.pdmi.ras.ru>
Cc:        msmith@atrad.adelaide.edu.au, emulation@FreeBSD.org
Subject:   Re: New doscmd available for testing/munching
Message-ID:  <Pine.SUN.3.95.960929191410.11330B-100000@garcia.efn.org>
In-Reply-To: <199609280740.LAA00820@abel.pdmi.ras.ru>

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On Sat, 28 Sep 1996, Alexey Pialkin wrote:

> > > > Actually, you mmap /dev/vga which roots at the base of video memory.  This
> > > > is much cleaner, not to mention safer.
> > > 
> > > BTW, why ?
> > 
> > Say you're running on a SVGA/VESA 2.x video card and FreeBSD has code in
> > it to use that (hah and double hah) -- VESA 2.x allows the card to create
> > a linear framebuffer in the WAY-UP-HIGH mem addrs like 4G range. Using
> > this, video memory for the cons wouldn't BE at 0xA000 like you're trying
> > to map. But /dev/vga would be properly redirected. 
> 
> Hmmm. Never seen any card that will make linear access memory for _text_ mode
> somewhere over 1 mb :) 

Andyou're only planning on making support for DOS programs that run in
TEXT mode?!?!?

                                Jon Mini, j_mini@efn.org, mini@4j.lane.edu
                                                    GAMMA Development Team
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"I think I can, I think I can, I think I can...."
little.blue.engine:Reality Protection Fault. (core dumped)
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