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Article #324

Re: VGA memory (Can I use more than 64k?)

#324
From: Elan Feingold
Date: Sat, 08 Aug 1992 15:20
19 lines
1410 bytes

>Hmm.  As far as I know, for the 320x200x256 mode, you can only get
>the one page.

One can actually access the four pages using the same techniques described
in DDJ.  It involves changing the registers so that when you write on byte
in video memory, it corresponds to 4 pixels.  Therefore 64*4 = 256kB.  You
choose what pixels to write with masking.  See DDJ for more details.

Elan

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References: <1992Aug8.082148.14605@news.ysu.edu>

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From: elan@tasha.cheme.cornell.edu (Elan Feingold)
Newsgroups: comp.os.msdos.programmer
Subject: Re: VGA memory (Can I use more than 64k?)
Message-ID: <1992Aug8.152059.10494@tc.cornell.edu>
Date: 8 Aug 92 15:20:59 GMT
References: <1992Aug8.082148.14605@news.ysu.edu>
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Reply-To: elan@tasha.cheme.cornell.edu (Elan Feingold)
Organization: Cornell University
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