On 10/30/2012 01:26 PM, Cory Smelosky wrote: I would kill for a VT180, I don't know why I like CP/M machines but that would just make such an awesome OPA0 for CHIMPY I'm kinda shocked to see that you wouldn't be able to run NetBSD /on/ a VT180 ;) Z80...no MMU, 16-bit address space... Was CP/M in ROM on the VT180? Nope, booted from 5.25" floppy from an RX180 disk subsystem. You'll be able to see one when you come visit, though I can't find the floppy cable. -Dave -- Dave McGuire, AK4HZ New Kensington, PA