Inaccessible CP/M programs in Altair32

From: Jim Battle <frustum_at_pacbell.net>
Date: Mon Nov 26 00:51:40 2001

Good point --

to flesh it out a bit more, there could be up to 16 different "user" areas
on the disk, which go from 0 to 15. Files were tagged with a nibble
indicating which user area the file belonged to.

To change user areas, type:

         USER 1

to change to user area 1. By default you are in user 0. Changing to each
user area and typing "dir" to see if anything is there is a drag. To find
out which, if any, user areas have active files, type:

         STAT USR:

and it responds with something like:

         Active User: 0
         Active Files: 0 1

to indicate you are currently in user 0 area and that user areas 0 and 1
have files in them.
(confirmed on *my* CP/M emulator!)


At 10:18 PM 11/25/01 -0800, you wrote:
>I'm not an expert in Altair CP/M but I do remember one other aspect. It
>wasn't password protection but I do remember the concept of differnt user
>#'s. It wasn't complicated but somthing like user #'s 1-8. Once you
>were that user I seem to remember only the files belonging to that user
>showing up...
>
>Might be a dead end... Just a thought...
>
>George Rachor
>
>=========================================================
>George L. Rachor Jr. george_at_rachors.com
>Hillsboro, Oregon http://rachors.com
>United States of America Amateur Radio : KD7DCX
>
>On Sun, 25 Nov 2001, Jim Battle wrote:
>
> > At 10:06 PM 11/25/01 -0500, you wrote:
> > >Hi:
> > >
> > > I'm making progress with using CP/M under Altair32, but I have
> > > one newbie
> > >question since I don't have much experience with CP/M.
> > >
> > > The disk image I have shows one program in the directory,
> > > STAT.COM. Running
> > >STAT tells me that there is about 167k free (on a 330k disk). Looking
> at the
> > >disk image file with a hex file editor reveals that there's more
> programs on
> > >the disk.
> > >
> > > I seem to remember something about password protection on a CP/M
> > > disk. How
> > >do I get around this so that I can see what else is on this image?
> >
> > It isn't password protection. Files can be marked as "system" files, so
> > that they don't show up when you do a "DIR". I think "STAT *.* $DIR" will
> > revert all hidden files back to normal.
> >
> > -----
> > Jim Battle == frustum_at_pacbell.net
> >
> >

-----
Jim Battle == frustum_at_pacbell.net
Received on Mon Nov 26 2001 - 00:51:40 GMT

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