From: pmo AT fmsc DOT com DOT au (Peter Monks)
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Allegro & X-MODE display limits!!
Date: Mon, 09 Dec 1996 03:45:11 GMT
Organization: Financial Market Software Consultants pty ltd
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To: djgpp AT delorie DOT com
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On 4 Dec 1996 20:47:07 GMT, isjolly AT aol DOT com wrote:
>Hi there,
>             Does anybody know how to extend the 256K limit on Video
>memory
>within Allegro. I wish to create a eight way scroller & also use video mem
>for
>background restore, logical & physical screens etc...

You can't without resorting to video card specific machinations, since
mode-X uses the standard IBM VGA, which can only contain up to 256K of
VRAM.

If you want low-res with large amounts of memory, have a look at
UniVBE's low-res VESA modes (which Allegro does directly support).
Unfortunately, most other VESA implementations don't support these
lower resolutions, so you're either stuck with Mode-X with only 256K
of memory, or totally reliant on UniVBE.

Good luck!
Peter


----------------------------------------------------------------------
Peter Monks                                            pmo AT fmsc DOT com DOT au
                                    Peter_Monks AT australia DOT notes DOT pw DOT com
                               http://www.geocities.com/Yosemite/4455/