Subject: Re: Newbie question
To: Allison J Parent <allisonp@world.std.com>
From: Dave McGuire <mcguire@neurotica.com>
List: port-vax
Date: 10/29/1997 14:03:00
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