On October 29, you wrote:
> <The CPU is quite different, so if it works it's plain luck.
> 
> It's not that different.  I believe there was emulation of some of the 
> floating formats and a few infrequently used instructions but a lot of the 
> small vaxen did not run the full instruction set. 

  Well, the 750 is implemented with a metric buttload of custom LSI
chips...and the 730 is based on an array of AMD 2901 bit-slice
microprocessors and an LSI microsequencer of some kind; maybe a 2910.
With such a difference in low-level implementation, there are lots of
little things that can be quite different.

  Ragge, have you looked at the 730 stuff?  What do you think?


                           -Dave McGuire
                            mcguire@neurotica.com