https://raymii.org/s/articles/Running_ADVENT-on-the-PDP-8-with-SIMH.html
https://bigdanzblog.wordpress.com/2014/05/23/editing-files-on-a-pdp-8-using-os8-edit/
https://bigdanzblog.wordpress.com/2014/06/11/compiling-and-running-hello-world-in-pdp-8-fortran-iv/
fpga
https://activelow.net/post/pdp8e-replicated-introduction/
http://www.tronola.com/html/building_the_sbc6120-fp6120.html