Re: Backing up Pascal Disks...

["John B. Matthews" <nospam@nospam.com>]

In article <406F4DEE.9C3FF84B@swbell.net>,
 Rubywand <rubywand@swbell.net> wrote:

> Chris M writes ...
> > 
> > On 02 Apr 2004 20:14:32 GMT, mjmahon@aol.com (Michael J. Mahon) wrote:
> > 
> > >Their low-level format is a normal 16-sector disk.
> > >
> > >One of the "APPLE" disks in the Pascal system has an intentionally
> > >bad sector for copy protection.  The system tries to read this sector
> > >and complains if it doesn't get an error.

The Fortran compiler on "FORT2:" was copy-protected, but the 
Pascal disks ("APPLE[0-3]:") were not.

> > >
> > >Most other (non-copy-protected) Pascal disks should work fine
> > >with ADT.
> > >
> > >-michael
> > 
> > Thanks.. I'll give ADT a try again.. I'm not trying to back up the
> > original Apple Pascal disks yet, just the pascal disks I got from
> > Dynacomp.  I tried it a little while ago (couple months) and ADT
> > didn't like the disk.  Maybe it was a bad disk..

>  ....
> 
>      One possible snag with using ADT is that, transferring to PC, you end up
> with a .dsk file. A .dsk file usually has DOS 3.3 sector ordering; but, it 
> can be in DOS 3.3 or ProDOS order. The emu is supposed to figure out which.
> That could be a problem with a Pascal disk.

Don't ProDSOS and Pascal disks have the same logical block order?

>      Since ADT always uses DOS 3.3 sector ordering, changing the Pascal disk
> image ".dsk" suffix to ".do" on the PC may help. The ".do" suffix specifies 
> DOS 3.3 ordering.
> 
> Rubywand

John
----
jmatthews at wright dot edu
www dot wright dot edu/~john.matthews/