Just a note there were versions of CP/M late in the game for Z8000 and 68000
that were the basic system written in C.? It turns out the 68K? had a instruction
set remarkably close to PDP11 and VAX which was the extension of the
PDP-11 16 bit CISC instruction set to 32bit.? The Z8000 a 16bit machine was
also closer to PDP-11 than Z80.
The cross compiler for those versions ran on DRCs VAX 11/750.?
Sources for asm and C versions are on line at Gaby's site.
Its familiar to me as I helped Tim create the the early compilations
back then mostly asm code and some PLM.
Allison