I stumbled onto this by accident, and yes it really is a port of UNIX v1 from PDP-11 assembly into 8086/80386 assembly. I fired up Qemu and some of the disk images and it booted up! the directories contain assembly, text files, pdf's, images, and pictures... I have no idea how to build it I didn't see any make file, but it looks very interesting! http://www.singlix.com/runix/index.html Also you may want to mute the tab, or turn your speakers down, it has an embedded music player.