>>I would guess that if ever CP/M could run on a VAX, it would be an emulation. <<
A way late coooment as I didn't see it then...
I was a digit, aka DEC employee and lived in the central engineering world.
I got to see a lot of really cool stuff.
It was available three ways:
+Using the SIMH CPU/system emulator.
+There was a third party board that plugged into a VAX backplane and provide direct execution
?on z80 and the VMS OS provided disk and terminal IO services..
+ and some crazy guy used the CP/M 68K sources that were written in C and made a version
?that booted natively on a VMX (microVAX 3100) He was a member of the NETBSD on VAX?
?development team.
+ Actually there was also a version using the 68K C code that ran as a user application.
? It required VMS as it was a user application rather than booting on the base sysytem.