On 2017-11-08 01:54, Paul Koning wrote:
On Nov 7, 2017, at 7:49 PM, Johnny Billquist <b...@softjar.se
<mailto:b...@softjar.se>> wrote:
I actually don't think he has a mixed massbus. I don't think you could
even configure simh for this. Simh have a very simplistic view on
hardware configurations.
You don't configure massbuses, and put devices on them. You normally
just configure the devices, and all the bus and controller
configurations come implicit from that.
So, if you specify a massbus disk, you'll get a corresponding massbus.
And for tapes, you'll get another one.
Both configured appropriately for that specific type of device you
have hooked to it.
In RSX land, only M+ supported mixed massbus, as you mention. Not sure
when/if VMS did. Not sure how much of anything else that might have
supported it either.
RSTS definitely did not. It does support mixed RP/RM massbus, which is
more usual but not universal either, I think. But no mixing disk and tape.
Thanks. I was wondering about RSTS/E, but didn't dare saying something
definitive. That it allows mixing of RM/RP is nice. I think in plain
-11M, even that might not be allowed, but I would have to go and check
and refresh my memory.
M+ allows any kind of combinations.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: b...@softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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