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Groups > alt.lang.asm > #6631

Re: The Virtual Partition - say goodbye to FAT12

From "Mike Gonta" <mikegonta@gmail.com>
Newsgroups alt.lang.asm, alt.os.development
Subject Re: The Virtual Partition - say goodbye to FAT12
Date 2016-04-02 19:30 -0400
Organization Aioe.org NNTP Server
Message-ID <ndpknd$17c8$1@gioia.aioe.org> (permalink)
References (2 earlier) <ndljqo$s9s$1@gioia.aioe.org> <ji6tfbl4a3tk91mit17ttlns6hm5kp5c3h@4ax.com> <ndmc55$8n5$1@gioia.aioe.org> <9uqtfb5fvu9qm9q63ennkhjhljums346oc@4ax.com> <ndmrrg$uuj$1@dont-email.me>

Cross-posted to 2 groups.

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"James Harris" wrote:
> "Robert Wessel" wrote:

>> I still don't get it.  Does the "standard OS" see this
>> "virtual FAT32" volume or not?  Just part of it as a
>> (subset) of a "real" FAT32 volume?
>
> I am not sure I get it either but Mike can correct me.
> AIUI he has worked out a way to format a FAT32 volume
> which makes the volume as simple as FAT12 to access.

Makes the Virtual Partition (at the beginning of the
volume) as "simple as FAT12 to access."

> That includes things like putting the root directory
> a the start. FAT32 allows it to go anywhere.

In actual use (unless going to extreme cases it will
never move). In addition to defragging, ideally (and even
Windows will do so) the most used programs are moved to
the front. The chances of the root directory (the most
important "file" on the volume) being move outside the
Virtual Partition is slim to nil. As I explained to Robert
in a previous post that there is no requirement for
anything being located at a "fixed" location. The
Virtual Partition is _fully_ compatible with the
specification.

> In other words, it is a completely legitimate way to lay
> out a FAT32 volume (so it is a normal FAT32 volume) but
> it imposes some restrictions and thereby makes processing
t> he volume easier (i.e. in a lesser amount of code).

In actual words, it is only by following the
Virtual Partition protocol (which the simple system does
voluntarily - to keep things simple) that a simple
restriction is imposed. In other words, by following the
protocol only those fils withing the Virtual Partition
are accessible.

> > If so, how are you preventing the "standard OS" from
> > doing something that messes up the subset your device
> > needs to see?
>
> I think normal OS accesses don't modify any of Mike's
> key changes. I'll be interested to hear if my
> understanding is right. I think, in particular, there's
> some part of it that I have missed.

The rest should become crystal clear as soon as I explain
the Virtual Partition protocol (up till now it's been
mostly the specification). I'm currently working on the
first draft of the AOD Virtual Partition Specification
and Protocol. That's right, AOD. Every one here who has
critiqued it will be given credit (I appreciate the
feedback), unless of course they don't wish to be
associated with it (you don't have to decide now, wait
until you get the full story). This way it will be a
community effort.


Mike Gonta
look and see - many look but few see

http://mikegonta.com
http://tawk.to/mikegonta

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Thread

The Virtual Partition - say goodbye to FAT12 "Mike Gonta" <mikegonta@gmail.com> - 2016-03-31 17:51 -0400
  Re: The Virtual Partition - say goodbye to FAT12 Robert Wessel <robertwessel2@yahoo.com> - 2016-03-31 20:48 -0500
    Re: The Virtual Partition - say goodbye to FAT12 "Mike Gonta" <mikegonta@gmail.com> - 2016-04-01 06:50 -0400
      Re: The Virtual Partition - say goodbye to FAT12 Robert Wessel <robertwessel2@yahoo.com> - 2016-04-01 11:06 -0500
        Re: The Virtual Partition - say goodbye to FAT12 "Mike Gonta" <mikegonta@gmail.com> - 2016-04-01 13:45 -0400
          Re: The Virtual Partition - say goodbye to FAT12 Robert Wessel <robertwessel2@yahoo.com> - 2016-04-01 17:06 -0500
            Re: The Virtual Partition - say goodbye to FAT12 James Harris <james.harris.1@gmail.com> - 2016-04-01 23:16 +0100
              Re: The Virtual Partition - say goodbye to FAT12 Robert Wessel <robertwessel2@yahoo.com> - 2016-04-01 17:29 -0500
                Re: The Virtual Partition - say goodbye to FAT12 Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-04-01 20:24 -0400
                Re: The Virtual Partition - say goodbye to FAT12 Robert Wessel <robertwessel2@yahoo.com> - 2016-04-02 00:10 -0500
                Re: The Virtual Partition - say goodbye to FAT12 Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-04-02 12:03 -0400
                Re: The Virtual Partition - say goodbye to FAT12 "Mike Gonta" <mikegonta@gmail.com> - 2016-04-02 20:19 -0400
                Re: The Virtual Partition - say goodbye to FAT12 "Mike Gonta" <mikegonta@gmail.com> - 2016-04-02 20:08 -0400
                Re: The Virtual Partition - say goodbye to FAT12 "Mike Gonta" <mikegonta@gmail.com> - 2016-04-02 20:02 -0400
                Re: The Virtual Partition - say goodbye to FAT12 "Mike Gonta" <mikegonta@gmail.com> - 2016-04-02 19:55 -0400
              Re: The Virtual Partition - say goodbye to FAT12 "Mike Gonta" <mikegonta@gmail.com> - 2016-04-02 19:30 -0400
            Re: The Virtual Partition - say goodbye to FAT12 "Mike Gonta" <mikegonta@gmail.com> - 2016-04-02 18:55 -0400
              Re: The Virtual Partition - say goodbye to FAT12 Robert Wessel <robertwessel2@yahoo.com> - 2016-04-04 00:40 -0500
  Re: The Virtual Partition - say goodbye to FAT12 "wolfgang kern" <nowhere@never.at> - 2016-04-01 09:20 +0200
    Re: The Virtual Partition - say goodbye to FAT12 "Mike Gonta" <mikegonta@gmail.com> - 2016-04-01 07:01 -0400
      Re: The Virtual Partition - say goodbye to FAT12 "wolfgang kern" <nowhere@never.at> - 2016-04-04 10:42 +0200
        Re: The Virtual Partition - say goodbye to FAT12 "Mike Gonta" <mikegonta@gmail.com> - 2016-04-05 15:58 -0400
          Re: The Virtual Partition - say goodbye to FAT12 "wolfgang kern" <nowhere@never.at> - 2016-04-05 22:19 +0200
            Re: The Virtual Partition - say goodbye to FAT12 "Mike Gonta" <mikegonta@gmail.com> - 2016-04-05 18:24 -0400
  Re: The Virtual Partition - say goodbye to FAT12 James Harris <james.harris.1@gmail.com> - 2016-04-01 09:55 +0100
    Re: The Virtual Partition - say goodbye to FAT12 "Mike Gonta" <mikegonta@gmail.com> - 2016-04-01 07:11 -0400
  Re: The Virtual Partition - say goodbye to FAT12 Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-04-01 20:24 -0400
    Re: The Virtual Partition - say goodbye to FAT12 "Mike Gonta" <mikegonta@gmail.com> - 2016-04-02 21:30 -0400

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