25 Oct
2009
25 Oct
'09
7:07 p.m.
Rick Murphy wrote:
That sounds like the timesharing restrictions being
turned on all of the
time. I'd try pulling the KM8E and see if the IOTs start working right.
If so, the "timeshare enabled" logic is on all of the time.
-Rick
Hm, he wrote the following:
I tried stripping the system down to just the CPU,
EAE, 8K of Core, and
the console async. interface, and it still behaves the same.
That implies he tried
without timeshare... The memory will work without.
Of course only the lower 4K...
If the instructions don't start working without memory
expansion/timeshare control plugged in, I'd begin to track the "user
mode" signal on the Omnibus - if it has the correct level - and the
logic listening to it...
Regards,
Philipp