Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!brutus.cs.uiuc.edu!samsung!think!husc6!bu-cs!xylogics!world!madd
From: madd@world.std.com (jim frost)
Newsgroups: comp.sys.ibm.pc
Subject: Re: UNIX runs DOS applications?
Message-ID: <1989Nov20.172348.19691@world.std.com>
Date: 20 Nov 89 17:23:48 GMT
References: <11330002@acf5.NYU.EDU> <11330003@acf5.NYU.EDU> <[2565552d:2.4]comp.sys.ibm.pc;1@nstar.UUCP>
Organization: Software Tool & Die
Lines: 22

akcs.larry@nstar.UUCP (Larry Snyder) writes:
>>	Is it also possible for these DOS virtual machines to use
>>	virtual memory? (ie in 4Mb of RAM a DOS Process uses expanded
>>	memory of 40Mb (under a compatibility window in unix))
>>
>>	Is that asking for too much? :-)

>It should be possible - but I've never tried it.

Depends on the implementation.  I believe that the Sun 386i DOS
emulator allows up to 4mb of LIM-compatible expanded memory to be
used.  I could find nothing comparable in the ISC 386/ix manuals,
though.

At any rate, the DOS VM's are subject to UNIX virtual-memory
management, which means that you can have more of them running than
you have available memory even if each of them can't be larger than
1mb.

jim frost
software tool & die
madd@std.com