12 Apr
2008
12 Apr
'08
9:24 a.m.
Could anyone out there with an 8/e confirm the
following:
1. Knob set to STATE, SR Keys Down
2. Press ADDR LOAD - do MD DIR and DATA CONT light up?
DATA comes on. If DIR is off it will come on
3. Press EXAM - do MD DIR and DATA CONT light
up?
DATA comes on. If DIR is off it will come on
4 Raise DEP - do MD DIR and DATA CONT light
up?
No change in those lights
Not quite sure what is up with DIR. On my online PDP-8 it seems to
always be on. The web front panel seems to be working fine
(http://www.pdp8.net/run.shtml) which should act the same as the
real front panel. I tried to verify with the real front panel but its not
operating reliabily. I tried the 8/M and it acted the same except sometimes
when I did things on the front panel DIR would change state but not in
any obvious pattern. If it was off the ADDR LOAD and EXAM would make it
turn on while the switch was held. Looks like more things for the todo list.