MattisLind
Veteran Member
Today I got the SPACEWAR program for PDP-11 that Bill Seiler and Larry Bryant wrote in 1974 working on my PDP-11/05.
Though I am not 100% sure I got everything right since I thought the sun was supposed to be in the middle. But it is not when I run SPACEWAR.
I got the original source code from Bill Seiler as scanned listing printouts. Then I transcribed it, built it, corrected errors and repeated untill the produced listing was identical to the pdf files.
All code is on my github.
https://github.com/MattisLind/SPACEWAR
Here is a quick video.
https://youtu.be/yn8O4lnbNYM
The implementation that Bill and Larry did was made for AA11 and AD01 while I only have a AR11 board. The AR11 has 10 bit D/A converters while the AA11 is 12 bit. The AA11 is 2’s complement. The AR11 is not.
I had to do some adapatations to get it working. Though I am not 100% sure I got everything right since I thought the sun was supposed to be in the middle. But it is not when I run SPACEWAR.
I got the original source code from Bill Seiler as scanned listing printouts. Then I transcribed it, built it, corrected errors and repeated untill the produced listing was identical to the pdf files.
All code is on my github.
https://github.com/MattisLind/SPACEWAR
Here is a quick video.
https://youtu.be/yn8O4lnbNYM