> IIRC the MicroVAX I is probably the least of the VAXen - [...], and
> (most important) without a full implementation of the instruction
> set.  (It has to emulate some of the lesser used instructions).

That is also true of the MicroVAX-II, that it has to emulate some of
the less-used instructions in software.  In the case of the uVAX-II,
executing one of the "macrocoded" instructions amounts to taking a trap
to the kernel....

					der Mouse

			       mouse@rodents.montreal.qc.ca
		     7D C8 61 52 5D E7 2D 39  4E F1 31 3E E8 B3 27 4B