14 Jan
2013
14 Jan
'13
11:28 a.m.
On 14/01/2013 18:30, Dave McGuire wrote:
On 01/14/2013 01:02 PM, Pete Turnbull wrote:
Except for 11/84 and 11/94 ;-)
11/53 and 11/93 (and /94) have memory on the CPU but can also access
QBus and PMI memory. QBus devices can access that as if it were on a
separate card.
I maintain that a Qbus PDP11 with a Unibus adapter isn't *just* a Qbus
PDP11. ;)
I'm pretty sure we can agree on that :-)
--
Pete Peter Turnbull
Network Manager
University of York
Do all PDP-11s use Qbus memory? None of them have
memory directly on
the CPU card (or, if they do, still generate Qbus cycles)?
Unibus PDP-11s don't use Qbus memory. ;)