25 Nov
2001
25 Nov
'01
1:06 p.m.
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?
Thanks.
Rich
Rich Cini
Collector of classic computers
Build Master for the Altair32 Emulation Project
Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/
/************************************************************/
25 Nov
25 Nov
3:29 p.m.
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
4:18 p.m.
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:
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
4:51 p.m.
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
>
> 
5:33 p.m.
ZCPR2 & 3 (CP/M extensions) even allowed
for 32 USER levels (0 .. 31)
Sipke de Wal
-------------------------------------------------
http://xgistor.ath.cx
-------------------------------------------------
----- 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
>
>
6:15 p.m.
True, but Rich's emulator is of an Altair -- one with an 8080 in it. ZCPR2
& 3 were Z80-only affairs, I believe.
I recently picked up Richard Conn's ZCPR book for $10, but I haven't yet
had time to do more than page through it quickly. It looks like it was an
interesting system; the author was obviously influenced by unix.
At 08:33 AM 11/26/01 +0100, Sipke de Wal wrote:
ZCPR2 & 3 (CP/M extensions) even allowed
for 32 USER levels (0 .. 31)
Sipke de Wal
-------------------------------------------------
http://xgistor.ath.cx
-------------------------------------------------
----- 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
-----
Jim Battle == frustum(a)pacbell.net
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:
>
> > 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
> > >
> > >
>
> -----
> Jim Battle == frustum(a)pacbell.net
> 
26 Nov
26 Nov
7:50 a.m.
On Mon, 26 Nov 2001, Jim Battle wrote:
True, but Rich's emulator is of an Altair -- one
with an 8080 in it. ZCPR2
& 3 were Z80-only affairs, I believe.
If he is running a true emulator, I would presume that he was running
CP/M-1.4 would he not? If that is so, is it not true that user areas
did not come into play until CP/M-2.x?
- don
I recently picked up Richard Conn's ZCPR book for
$10, but I haven't yet
had time to do more than page through it quickly. It looks like it was an
interesting system; the author was obviously influenced by unix.
At 08:33 AM 11/26/01 +0100, Sipke de Wal wrote:
ZCPR2 & 3 (CP/M extensions) even allowed
for 32 USER levels (0 .. 31)
Sipke de Wal
-------------------------------------------------
http://xgistor.ath.cx
-------------------------------------------------
----- 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
-----
Jim Battle == frustum(a)pacbell.net
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:
>
> > 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
> > >
> > >
>
> -----
> Jim Battle == frustum(a)pacbell.net
> 
25 Nov
25 Nov
9:50 p.m.
are the other files on different "user" levels? (i forget the term) like
if the drive is C, you have C0 C1 C2 C3 C4 C5 C6 C7 and C8 IIRC
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?
Thanks.
Rich
Rich Cini
Collector of classic computers
Build Master for the Altair32 Emulation Project
Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/
/************************************************************/
8428
days inactive
8429
days old
7 comments
6 participants
participants (6)
-
donm＠cts.com -
frustum＠pacbell.net -
geoffr＠zipcon.net -
george＠racsys.rt.rain.com -
rcini＠optonline.net -
sipke＠wxs.nl