> On Dec 31, 2018, at 5:15 PM, Paul Koning <[email protected]> wrote:
>
>> On Dec 31, 2018, at 6:32 PM, Henk Gooijen via cctalk <[email protected]>
>> wrote:
>>
>> There are one or two bits in a register of the RK11 that have a different
>> meaning/function, depending on the controller being a -C or -D. The RK11-C
>> was quickly replaced by the RK11-D, but I guess RSTS would know the
>> difference. Other guys here will be able to give a lot better light on this
>> than me (Paul?)
>
> I did not know that. If someone can point me to the description of the
> differences I should be able to say what RSTS will do with them.
Oh, I didn’t know that either!
> Did you specify overlapped seek in SYSGEN?
Yes, I did enable overlapped seek during SYSGEN, and I did just have some
trouble with overlapped seeks on my RK11-C (though I repaired that well enough
to pass the associated MAINDEC before trying RSTS).
I’ll try a non-overlap SYSGEN soon/next -- right now it takes me a little over
two hours to image a pack using PDP11GUI and a DL11 at 9600 baud, which is a
bit painful. So I’d like to capture some logic analyzer traces off the RK11-C
while I have this repro case before I write over my current pack. If there is
something still up with my overlapped seeks, I’d like to characterize and fix
it anyway.
cheers,
--FritzM.
