[Simh] vax vs. vax780

[Zane H. Healy]

At 8:39 PM -0600 11/7/06, Tim Pinkawa wrote:
>Just out of curiosity, what's the difference between the vax and
>vax780 simulators? I realize that vax emulates a MicroVAX and vax780
>emulates a VAX-11/780, but other than that what is the difference as
>far as OpenVMS (or any other operating system) is concerned?

As far as I/O is concerned, there is quite a difference between a 
VAX-11/780 and a MicroVAX.  Although I believe the MicroVAX emulated 
is a Q-Bus system, so it's not as big as it could be.

Also the VAX-11/780 and the MicroVAX should have some pretty serious 
differences at the CPU level I should think with regards to PDP-11 
emulation.

Hopefully someone more clueful on this subject than myself chips in.

		Zane


-- 
| Zane H. Healy                    | UNIX Systems Administrator |
| healyzh at aracnet.com (primary)    | OpenVMS Enthusiast         |
| MONK::HEALYZH (DECnet)           | Classic Computer Collector |
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