On Wed, 26 May 2010, Josh Dersch wrote:
I was working on software to dump 4051 tapes over a
serial port or the GPIB
bus, as well as an emulator. Both are still works in progress (progress
being very slow at the moment) based on disassembling the system ROMs and
going through the service manuals. I recently came into possession of the
actual source code for the 4051's ROMs on microfiche, which I've passed on to
Al for archiving. Looking forward to reading through those once he's done!
I'm hoping that once I work out enough to write a basic emulation, I'll know
enough about the hardware to write some assembly code for the real 4051 to
allow raw dumps of 4051 tapes (and hopefully writing them back!). But I have
a few other things stealing time from me at the moment, so it won't be in the
near future...
So the information on
ftp://ftp.informatik.uni-stuttgart.de/pub/cm/tek4051/ (I've already posted
the link some time ago) is of no use? Funny, because I *did* write a
working BASIC program to dump tapes into CBM 8050 disk files (I have that
drive attached to our 4051 as you know). But I still have to transfer
these files to some other system... (too much other things to do).
Christian