At 10:10 AM 5/25/06 -0400, you wrote:
I seriously
doubt these can be read in another machine. For one thing,
HP stores the program files in a tokenized format and AFIK no one knows
what the token values are.
Reverse Engineering.
Start with storing HelloWorld.BAS yourself, then reading it, etc.
It would much simpler to just fix the tape drive in a 9845 and use it.
The drive isn't the biggest problem. The real problems are that tapes are
very prone to shedding the media and therefore permanently losing the data.
Also the calculator interprets the now clear media as an EOT hole so you
can't read anything past that. PLUS the drive belts in the cassette tapes
dry out and fall apart so you usually have to replace those to even get the
tape to move. All in all, you get FEW chances to read the tape. You need to
have everything as near perfect as possible and then read the tape ONCE and
be able to interpret it properly the first time.
Joe