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From: izumi@violet.berkeley.edu
Newsgroups: comp.sys.ibm.pc
Subject: Any VDISK.SYS like driver for copying to/from AT memory >1 MB ?
Message-ID: <4592@jade.BERKELEY.EDU>
Date: Wed, 5-Aug-87 01:47:08 EDT
Article-I.D.: jade.4592
Posted: Wed Aug  5 01:47:08 1987
Date-Received: Fri, 7-Aug-87 06:49:49 EDT
Sender: usenet@jade.BERKELEY.EDU
Reply-To: izumi@violet.berkeley.edu ()
Organization: University of California, Berkeley
Lines: 22

**
I have an AT frame grabber whose video RAM is mapped into addresses
above 1 Mega byte. (Extended Memory ?).

I understand that the only way this memory can be accessed under
current PC-DOS / MS-DOS 
is via
a driver like VDISK.SYS (on IBM PC-DOS diskette).

Is there any PD driver source code which provides copying
services between AT memory above 1 Megabyte and regular DOS memory?

I need straight memory copy ( 1 segment is fine) without any formatting
of any kind.

Any lead to such a beast is appreciated.  Thanks in advance.

Izumi Ohzawa
Univ. of California, Berkeley
phone (415) 642-6440
izumi@violet.berkeley.edu
..ucbvax!violet!izumi