Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!cornell!uw-beaver!fluke!dcd
From: dcd@tc.fluke.COM (David Dyck)
Newsgroups: comp.sys.ibm.pc
Subject: Extended memory questions
Keywords: vdisk extended memory cache technical
Message-ID: <5003@fluke.COM>
Date: 29 Aug 88 21:56:23 GMT
Sender: news@tc.fluke.COM
Organization: John Fluke Mfg. Co., Inc., Everett, WA
Lines: 34


Any Extended Memory 'experts' out there?

Is there a accepted standard method for using and sharing extended memory?

I know of INT 15/87 to move date to/from extended memory,
and INT15/88 to obtain total extended memory size.

Is there any way to tell if another application/ram disk/etc
is using part of the extended memory?

I am using a program like VDISK that will
allow some of extended memory to be used as a ram disk.

I also want to have a driver utilize some of the unused extended memory.
If my driver is loaded before VDISK, how would I/it inform VDISK 
that some of the extended memory was already in use?
And what if VDISK loaded first,
is there a way for my driver to determine how much memory VDISK was using?

Should all extended memory applications/drivers allow the
user to specify the upper/lower bounds in extended memory?

I just finished a trial and error method of trying to get 
two applications that both use extended memory to co-exist
(A disk cache driver, and a ram disk).

Thanks for any information,

            David Dyck
    Domain: dcd@tc.fluke.COM
     Voice: +1 206 356 5807
      UUCP: {uw-beaver,decwrl,microsof,sun}!fluke!dcd
     Snail: John Fluke Mfg. Co. / P.O. Box C9090 / Everett WA  98206