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From: ljz@well.UUCP (Lloyd Zusman)
Newsgroups: net.micro.pc
Subject: Re: Ramdisks in high memory
Message-ID: <1063@well.UUCP>
Date: Mon, 12-May-86 15:51:40 EDT
Article-I.D.: well.1063
Posted: Mon May 12 15:51:40 1986
Date-Received: Wed, 14-May-86 19:34:16 EDT
References: <1893@ihlpg.UUCP> <1897@ihlpg.UUCP> <2104@cbosgd.UUCP>
Reply-To: ljz@well.UUCP (Lloyd Zusman)
Organization: Whole Earth Lectronic Link, Sausalito CA
Lines: 41

In article <2104@cbosgd.UUCP> mark@cbosgd.UUCP (Mark Horton) writes:
>In article <1897@ihlpg.UUCP> nromy@ihlpg.UUCP (Romy) writes:
>>> Does anyone know of either:
>>>    a) a hack that allows you to put the ramdisk above 640, or
>>>    b) a ramdisk from some other vendor that does?

>> ...

>>	DEVICE=VDISK.SYS 200 /E

>> ...

>
>I just looked in my DOS manual for the 6300 plus.  There is nothing
>called VDISK.  There is something called RAMDISK, documented in
>appendix H.  But no /E option or anything comparable.
>
>Perhaps VDISK comes from some other source?  If so, where can we get it?
>It's silly to have a third of a MB sitting there wasted while I eat up
>my precious 640K with a RAM DISK.
>
>	Mark


... and furthermore, when I try to use IBM's VDISK on my 6300+ with the
/E option, it doesn't work.

I think the difference between using VDISK on IBM and on AT&T 6300+ is that
the IBM's extended memory is on a card, and AT&T's is on the motherboard.

Since IBM supplies the source to VDISK (even though it's an assembler listing,
at least you can massage it with an editor and turn it into source), some
time when I have a week or so I'll get into it and see if I can hack it
to work on the 6300+.

Maybe someone else has done this or would like to be a hero and try.

I second the request for information about this.  AT&T just tells me, in
so many words, that I'm S.O.L. about using the extra memory under MSDOS (it's
meant for their [I hope] soon-to-be-officially-released Unix port for the
6300+).