Groups > comp.os.msdos.programmer > #140

Re: Running (Free)DOS from ROM

From	monahanz <monahan@vitasoft.org>
Newsgroups	comp.os.msdos.programmer, comp.os.msdos.misc, alt.os.free-dos
Subject	Re: Running (Free)DOS from ROM
Date	2011-08-14 10:04 -0700
Organization	http://groups.google.com
Message-ID	<ac8e56ee-e83d-4cb4-be26-39701e4d080d@j37g2000prh.googlegroups.com> (permalink)
References	<6b6811ce-3541-47db-bd6d-4ec53eb5c182@e3g2000vby.googlegroups.com> <j1irmm$gjr$1@speranza.aioe.org> <6e31a256-92cf-4746-ad84-375bf8a160cb@b19g2000yqj.googlegroups.com> <8aa88c74-8511-4148-bbe3-2994ff90e17e@t30g2000prm.googlegroups.com> <j27qdl$k8d$1@speranza.aioe.org>

Cross-posted to 3 groups.

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On Aug 13, 11:36 pm, "Rod Pemberton" <do_not_h...@noavailemail.cmm>
wrote:
> "monahanz" <mona...@vitasoft.org> wrote in message
>
> news:8aa88c74-8511-4148-bbe3-2994ff90e17e@t30g2000prm.googlegroups.com...
>
>
>
> > I currently have is as far as reading 5" 360K disk. I am about to
> > try and add an HDisk. I was going to first try and add a 1.4M
> > 3" floppy.  My question is:  if I return the correct disk parameters
> > to Int 13H will DOS V2.1 be able to read the disk (even though
> > 1.4 disks were not available at the time).
>
> The information I have indicates the listed disks were added with listed
> version:
>
> MS-DOS 1.00 160KB 5.25" SS/SD floppy disks
> MS-DOS 1.10 320KB 5.25" DS/SD floppy disks
> MS-DOS 1.25 360KB 5.25" DS/DD floppy disks
> MS-DOS 3.00 1.2MB 5.25" DS/HD floppy disks
> MS-DOS 3.20 720KB 3.5"  DS/DD floppy disks
> MS-DOS 3.30 1.44MB 3.5" DS/HD floppy disks
>
> HTH,
>
> Rod Pemberton

Thanks Rob. Yes I had the same information, but from above some people
are telling me if I return the correct DP table I can get 2.0 to work
with a 1.44M disk.

I would go to a V3.0 however the boot hangs on my hardware. The
problem is I am adapting my BIOS for a non PC setup (S100 System).
There must be something different in the Int calls in 3.0 that is not
in 2.0. I just cannot figure it out - still looking.  What I cannot
understand is that I have an "unimplemented INT trap" for all the 8086
Ints., yet it picks up nothing. Must be looking for some unusual
returned value in the same Ints I implement for V2.0

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Thread

Running (Free)DOS from ROM Ruud <ruud.baltissen@gmail.com> - 2011-08-05 10:08 -0700
  Re: Running (Free)DOS from ROM Ross Ridge <rridge@csclub.uwaterloo.ca> - 2011-08-05 14:20 -0400
  Re: Running (Free)DOS from ROM "Rod Pemberton" <do_not_have@noavailemail.cmm> - 2011-08-06 03:49 -0400
    Re: Running (Free)DOS from ROM Ruud <ruud.baltissen@gmail.com> - 2011-08-10 09:54 -0700
      Re: Running (Free)DOS from ROM monahanz <monahan@vitasoft.org> - 2011-08-12 10:17 -0700
        Re: Running (Free)DOS from ROM Ross Ridge <rridge@csclub.uwaterloo.ca> - 2011-08-12 14:54 -0400
          Re: Running (Free)DOS from ROM monahanz <monahan@vitasoft.org> - 2011-08-12 14:54 -0700
            Re: Running (Free)DOS from ROM Single Stage to Orbit <alex.buell@munted.org.uk> - 2011-08-12 23:22 +0100
            Re: Running (Free)DOS from ROM "Esra Sdrawkcab" <admin@127.0.0.1> - 2011-08-17 18:18 +0100
        Re: Running (Free)DOS from ROM Single Stage to Orbit <alex.buell@munted.org.uk> - 2011-08-12 22:54 +0100
          Re: Running (Free)DOS from ROM monahanz <monahan@vitasoft.org> - 2011-08-12 15:45 -0700
            Re: Running (Free)DOS from ROM monahanz <monahan@vitasoft.org> - 2011-08-12 18:38 -0700
              Re: Running (Free)DOS from ROM Ross Ridge <rridge@csclub.uwaterloo.ca> - 2011-08-12 23:40 -0400
                Re: Running (Free)DOS from ROM monahanz <monahan@vitasoft.org> - 2011-08-13 09:46 -0700
                Re: Running (Free)DOS from ROM monahanz <monahan@vitasoft.org> - 2011-08-13 16:04 -0700
                Re: Running (Free)DOS from ROM Kalle Olavi Niemitalo <kon@iki.fi> - 2011-08-14 12:35 +0300
                Re: Running (Free)DOS from ROM monahanz <monahan@vitasoft.org> - 2011-08-14 09:48 -0700
        Re: Running (Free)DOS from ROM "Rod Pemberton" <do_not_have@noavailemail.cmm> - 2011-08-14 02:36 -0400
          Re: Running (Free)DOS from ROM monahanz <monahan@vitasoft.org> - 2011-08-14 10:04 -0700
            Re: Running (Free)DOS from ROM "Rod Pemberton" <do_not_have@noavailemail.cmm> - 2011-08-15 03:42 -0400
              Re: Running (Free)DOS from ROM monahanz <monahan@vitasoft.org> - 2011-08-15 10:05 -0700
        Re: Running (Free)DOS from ROM Ruud <ruud.baltissen@gmail.com> - 2011-08-14 00:33 -0700
          Re: Running (Free)DOS from ROM monahanz <monahan@vitasoft.org> - 2011-08-14 10:09 -0700
            Re: Running (Free)DOS from ROM Ruud <ruud.baltissen@gmail.com> - 2011-08-15 12:44 -0700
              Re: Running (Free)DOS from ROM monahanz <monahan@vitasoft.org> - 2011-08-16 16:05 -0700
                Re: Running (Free)DOS from ROM "Rod Pemberton" <do_not_have@noavailemail.cmm> - 2011-08-17 07:01 -0400
                Re: Running (Free)DOS from ROM monahanz <monahan@vitasoft.org> - 2011-08-17 11:07 -0700
                Re: Running (Free)DOS from ROM "Rod Pemberton" <do_not_have@noavailemail.cmm> - 2011-08-18 03:26 -0400
                Re: Running (Free)DOS from ROM dg1261 <dgREMOVE-THIS1261@cs.com> - 2011-08-18 08:18 +0000
                Re: Running (Free)DOS from ROM monahanz <monahan@vitasoft.org> - 2011-08-18 10:23 -0700
                Re: Running (Free)DOS from ROM Jim Leonard <mobygamer@gmail.com> - 2011-08-18 11:20 -0700
                Re: Running (Free)DOS from ROM monahanz <monahan@vitasoft.org> - 2011-08-18 17:29 -0700
                Re: Running (Free)DOS from ROM "Rod Pemberton" <do_not_have@noavailemail.cmm> - 2011-08-19 03:52 -0400
                Re: Running (Free)DOS from ROM dg1261 <dgREMOVE-THIS1261@cs.com> - 2011-08-19 00:30 +0000
                Re: Running (Free)DOS from ROM monahanz <monahan@vitasoft.org> - 2011-08-20 17:08 -0700
                Re: Running (Free)DOS from ROM "s_dubrovich@yahoo.com" <s_dubrovich@yahoo.com> - 2011-09-01 17:34 -0700

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