14 Jan
2013
14 Jan
'13
8:52 p.m.
On 01/14/2013 03:47 PM, John Wilson wrote:
Yee-HAW! Err somethin'. ;)
That's ok. I love my 11/84s anyway. =)
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA
I maintain
that a Qbus PDP11 with a Unibus adapter isn't *just* a Qbus
PDP11. ;)
Nah it's more than that -- it's a hilarious joke for screwing with the minds
of I/O drivers, which detect the UMRs and think they're on a mapped system
but then it turns out that RH70s aren't the only thing using unmapped DMA,
but there's no sure way to know what's Q and what's U.
Fun for all concerned! :-)