Re: [TUHS] 2.11BSD on a Z180 (was: merry christmas)

I hadn't seen apout but it is a good idea, I was toying with doing the same thing by cross compiling the 2.11BSD kernel to create something like User Mode Linux (but then adding user mode PDP-11 CPU emulation since it does not make sense to compile x86-64 2.11BSD userspace executables even though it is theoretically possible). I don't know how stable is the ABI between Unix V7 and BSD or between BSD versions. I suspect it is very similar but there would be differences in things like struct stat which are bound to cause breakage. So I think it has to run the correct kernel to get the correct ABI, and in turn that kernel has to have null or pass thru drivers to access the host facilities. I do hope to get this working someday, especially since a full cross compile of 2.11BSD includes the f77 stuff which cannot reasonably be compiled on a modern system given the compiler is not written in C, I think it is PDP-11 assembly.