18 Jan
2002
18 Jan
'02
7 p.m.
The Macintosh can archive Apple II 3.5" disk with Disk Copy, but I prefer
to use an Apple II native archiving format for all my Apple II disks.
I use ShrinkIt v3.4 to create both 5.25" and 3.5" Apple II compressed disk
images, and transfer the files over a serial link to a PC. There they can
be recorded onto an ISO 9660 CD-ROM. The files can be transferred back to
an Apple II and converted to a real disk again. I have transferred over
25MB of Apple II disk images this way.
On the PC the ShrinkIt files can be manipulated with Nulib and Mapper to
create .DSK images to use with emulators.
Paul R. Santa-Maria
Monroe, Michigan USA
26 Feb
26 Feb
1:32 a.m.
New subject: Apple II 13-sector disks
I have received a box of old Apple II disks including a bunch of 13-sector
disks. It would be quicker if I could directly boot these disks instead
of using BOOT13 or the Basics disk. Does anyone here still have the
13-sector boot PROMs for the Disk II controller card? These are small
256-byte PROMs; can anyone here burn them if I cannot find originals?
I can dig up exact tech specs for the PROMs if needed; at this point I am
assuming that if you know what I am talking about then you know what I
need.
Paul R. Santa-Maria
Monroe, Michigan USA
25 Feb
25 Feb
6:50 p.m.
New subject: Apple II 13-sector disks
On Tue, 26 Feb 2002, Paul R. Santa-Maria wrote:
I have received a box of old Apple II disks including
a bunch of 13-sector
disks. It would be quicker if I could directly boot these disks instead
of using BOOT13 or the Basics disk. Does anyone here still have the
13-sector boot PROMs for the Disk II controller card? These are small
256-byte PROMs; can anyone here burn them if I cannot find originals?
I've been searching for years and I don't think I've ever even seen a
13-sector disk controller. Just about everybody updated their old
13-sector boot controller when the 16-sector version came out.
I think I may actually have the 13-sector boot PROMs but where they are I
wouldn't know.
Here's an idea: boot trace the BOOT13 disk and grab the code from it.
It's most likely just the old 13-sector disk controller PROM code.
Alternatively, if you have a copy of the original Apple disk/DOS manual
you'll find the 13-sector PROM code there. Take this code and burn it
into a PROM and swap it with the correct PROM on the 16-sector controller
and it should work.
Sellam Ismail Vintage Computer Festival
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