gwynp(a)artware.qc.ca wrote: It's unlikely. Wolfgang is asking about an HP 9000/520 aka 9020. It's one of HP's first 9000s, sort of an early workstation, and was well on its way to obsolescence in the early 1990s. The processor architecture is a 32-bit stack machine called FOCUS, and it's nothing like a Motorola 68000 nor HP PA-RISC. And it's been frustrating open-source types for years. Here's what etc/MACHINES file from the GNU Emacs distribution has had to say for a long time now: # HP 9000 series 500: not supported. # # The series 500 has a seriously incompatible memory architecture # which relocates data in memory during execution of a program, # and support for it would be difficult to implement. -Frank McConnell