25 Nov
2001
25 Nov
'01
8:33 p.m.
ZCPR2 & 3 (CP/M extensions) even allowed
for 32 USER levels (0 .. 31)
Sipke de Wal
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http://xgistor.ath.cx
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----- Original Message -----
From: Jim Battle <frustum(a)pacbell.net>
To: <classiccmp(a)classiccmp.org>
Sent: Monday, November 26, 2001 7:51 AM
Subject: Re: Inaccessible CP/M programs in Altair32
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(a)rachors.com
Hillsboro, Oregon http://rachors.com
United States of America Amateur Radio : KD7DCX
On Sun, 25 Nov 2001, Jim Battle wrote:
-----
Jim Battle == frustum(a)pacbell.net
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(a)pacbell.net
>
>