Original Soviet Tetris on BIG IRON Howto
WORK IN PROGRESS
This howto documents our efforts to reproduce as close as possible the original Tetris experience in a real-hardware setup.
Emulation approach on a common PC is described in OriginalTetrisHowto.
So, here we will explain how to install TETRIS on a real DEC PDP-11/34 running RT-11 and also cover some useful tricks.
We will use:
- USB - RS232 Serial converter
- A pc with Linux Mint
- CKermit from columbia.edu
We assume that you have a running PDP-11 with RT-11 installed. Our is a PDP-11/34
We need to use KERMIT protocol to transfer files between a PC and a PDP-11.
CKermit PC side
You can just install it:
sudo apt-get install ckermit
CKermit PDP-11 side
This is somehow complicated. How can you transfer KERMIT on the PDP11... without kermit itself?
Source of information is http://www.columbia.edu/kermit/pdp11.html
"Bootstrapping" section is what you need to put KERMIT in your PDP11
You need TETRIS.SAV, the program for RT-11. You can found it here: http://pdp-11.ru/mybk/hobot/ukdwk_archive/dwkwebcomplekt/rt11_symbol_games/
Connecting to our PDP-11 with Kermit
On PDP11, you launch KERMIT.SAV
and write at his prompt:
set file bin set line tt: set attributes off server
On PC side:
check what TTY is related to your USB/Serial converter! Normally is /dev/ttyUSB0 but can also be /dev/ttyUSB1 or whatever. Assuming /dev/ttyUSB0 is coorect, you just have to launch kermit, and write at his prompt:
set port /dev/ttyUSB0 set line /dev/ttyUSB0 set speed 9600 set flow xon/xoff set carrier-watch off set attributes off robust connect
After that, you can use GET and SEND commands on the PC to transfer files.
- Using ftape? to put kermit on PDP11
- KSERVE usage?