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From: d86-tpl@nada.kth.se (Tomas Prybil)
Newsgroups: comp.sys.ibm.pc
Subject: VGA problems
Message-ID: <2256@draken.nada.kth.se>
Date: 2 Nov 89 18:22:47 GMT
Reply-To: d86-tpl@nada.kth.se (Tomas Prybil)
Organization: Royal Institute of Technology, Stockholm, Sweden
Lines: 18

Hi netlanders!

I'm trying to write a piece of code that would dump a VGA (640*480) 
picture to disk as fast as possible. Im interested to do the opposite 
as well.

The video buffer according to detecting software starts at 0xB000:8000.
I thought that it would be possible to set up a pointer to the adress
and then write from the starting adress + 64k out to disk. This was 
apparently NOT the way to do it! But how should I do?

There are probably many out there who knows how to do it and I would
really appreciate any hint or source (C Pascal or ASM).

Have a nice day!!

  tomas prybil
  student of above org.