9 Nov
2017
9 Nov
'17
4:39 a.m.
2017-11-09 10:55 GMT+01:00 Christian Corti via cctalk <cctalk at classiccmp.org
:
On Wed, 8 Nov 2017, CuriousMarc wrote:
Very interesting! I have a 2640 which I recently refurbished the screen on
and it runs happily and then a 2645 that still needs treatment for the
screen rot. Is the binaries for pong and space invaders downloadable
somewhere? I searched the usual places, but haven't found anything. It
would be interesting to test this binary download mode.
Awesome! The microcode listings would be
fantastic too, as I also have a
2749 (which you are supposed to be able to program in assembly)! Let us
know
The firmware is already on bitsavers, IIRC. But you can program every 264x
terminal in assembly. There are some games like Pong, Space Invaders etc.
for these terminals, both for the i8008 based 2640/2644 and the i8080 based
2645/2648. These terminals all have a special control code sequence to load
a binary file (either from tape or from the serial line) into memory and
start executing. It is "<ESC> & b".
A short description and sample program for the 8008 based terminals can be
found here:
http://computermuseum.informatik.uni-stuttgart.de/dev_en/hp2644/diag.html
Christian
/Mattis