Path: utzoo!attcan!uunet!lll-winken!lll-tis!ames!xanth!nic.MR.NET!tank!uwvax!astroatc!nicmad!brown
From: brown@nicmad.UUCP (Vidiot (Vid-e-it))
Newsgroups: comp.sys.ibm.pc
Subject: Re: 640kb limit on DOS?
Message-ID: <3537@nicmad.UUCP>
Date: 13 Dec 88 16:31:07 GMT
References: <8043@ihlpl.ATT.COM> <3521@nicmad.UUCP> <593@tapa.UUCP> <10687@s.ms.uky.edu> <3534@nicmad.UUCP> <NELSON.88Dec12161451@sun.soe.clarkson.edu>
Reply-To: brown@nicmad.UUCP (Vidiot (Vid-e-it))
Distribution: na
Organization: Vidiot's Hangout
Lines: 30

In article <NELSON.88Dec12161451@sun.soe.clarkson.edu> nelson@clutx.clarkson.edu writes:
<In article <3534@nicmad.UUCP> brown@nicmad.UUCP (Vidiot (Vid-e-it)) writes:
<
<   In article <10687@s.ms.uky.edu> simon@ms.uky.edu (Simon Gales) writes:
<   <In article <593@tapa.UUCP> larry@tapa.UUCP (Larry Pajakowski) writes:
<   <>You can cheat on the 640k barrier with a 386 or an All Charge Card.
<
<   PS/MS-DOS does not, nor can it ever, access anything except the first 1 MB
<   of memory.  
<
<Well, strictly speaking, you're wrong.  You can access 1 MB + 64 K -
<16 bytes directly via HIMEM.SYS, and up to 8 Meg indirectly through
<EMS.  Given that you have to load a segment register to access memory
<(ack), you may as well be forced to make an EMS memory manager.  Just
<doesn't add that much complexity.

Well, strickly speaking, you're wrong as well.  The original question,
missing from here, wanted to be able to address more ram with DOS.  My
statement above stands, ie, DOS cannot address anything except the first
1 MB of memory.

Yes, there are other things that help it "cheat", but DOS itself can't.
EMS does not help DOS, it only helps the applications that understand the
EMS way of doing things.  Good 'ole DOS can't/doesn't use EMS.

Now do you understand what I am talking about?
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