Norbert Kehrer's Mailüfterl Emulator
The Mailüfterl Machine
The Mailüfterl was the first fully transistorized computer on continental Europe. It was built at the Technical University of Vienna (Austria) from 1956 to 1958 by Dr. Heinz Zemanek and his team. The machine was very reliable and was in operation until about 1966 (the year, in which I was born).
Here is my Java emulator of it:
Find more information and some instructions below.
My Emulator for the Mailüfterl
Any feedback on this program is very much appreciated. Please send me an email.
My next steps will be to make a description of the programming language of the Mailüfterl, to complete my Forth compiler, and my Pascal cross compiler for the machine.
Using the Emulator
For the pre-stored original Mailüfterl program (RELAIS) from 1960 this works in the following way: Go to the punched tape reader window. Select paper tape for relay program. Press button "Load". Then assemble the program using the button "Assemble". Watch the assembler listing in the teleprinter. Then, goto the control desk, mark the "X" (jump), select "1000" as "address" (jump destination), select "Bef." (switch to command keyboard), press "BÜ" (transfer jump instruction to the instruction register), and press "Start". Now you can watch the activities in the relay window.
And now, try out software which was written in the fifties and early sixties and probably has not been run for 50 years now!
Norbert Kehrer (http://web.utanet.at/nkehrer)