Beehive Topper (was: laptops and 5.25 inch floppy drives?)

[Chuck Guzis]

On 10 Jan 2007 at 21:48, der Mouse wrote:

> Reminds me of something I did with a TeleVideo 955 once.  Turns out
> that model has a custom-firmware ROM socket, with an escape sequence in
> the stock firmware to execute it.  I disassembled enough of the various
> pieces to work out much of the interface to the hardware, and wrote a
> small video game to run in the custom firmware ROM as a
> proof-of-concept exercise.  This promptly started a friend asking me
> when I would release NetBSD/tvi955....

When I wrote the firmware for the Fortune Systems text terminal, I 
added a special escape sequence that would allow one to load a 
program into RAM via the host and execute it.  It was used for 
terminal QA, but the code stayed in as far as I know.  If anyone has 
one of these animals and wants to know the escape sequence, drop me a 
line and I'll dig it out of my files.    IIRC, there's not a lot of 
RAM there, but enough to goof around with.

Cheers,
Chuck