"Sean Glazier" <sglazier at comcast.net>  asked...

>Do you have the original c source for running that image I wonder?

The original source wasn't in C.  It was Nova assembler plus microcode for various Xerox processors.  However there's one in Smalltalk in the blue book.  And the Squeak VM is very close, except for its object memory which is much nicer.  I do have this Squeak version of Hobbes that runs it, but it's not as simple as you might hope.

I think a couple of folks wrote interpreters in C for that image, so you might still find one.  I'd ask on comp.lang.smalltalk.  I think Stoney Ballard's was in C, but he changed the object memory too.

Good luck
	- Dan