Core files ...

[Ken Warner]

Is there a way to run a core file?  I'm writing yet an other shell (yaos) and
I want to be able to save an image of it at some particular time and then 
at some later time restart it.  I think I can figure out how to dump a 
core file but how does one re-start it?  

I know most Lisp implementations allow you to save an image.  Would anyone
know have any insight into how that is done?  I'm on a Sun under OS 3.5
TIA!
Ken Warner