ZachyCatGames
Experienced Member
- Joined
- May 20, 2024
- Messages
- 59
@Zach or I can do that tomorrow.
Our 12 has the KW12 option... does that generate periodic interrupts all the time? We don't really know how it works and I think it's the one thing that Warren & Dawson didn't do much with.
6131 doesn't do anything while it's in this state.Found manual here
http://users.rcn.com/crfriend/museum/doco/PDP-12/UG-Chap5s4.html#5.4.4
I think this should check if its the source
100 6131
101 5101
102 7402
If it halts its the clock. It doesn't say if enables are cleared by default to disable interrupts. I would hope they are cleared by the main reset.
Console port skips are. You can replace the 6131 with these.
6041
6031
Are you running your serialdisk on the console port?
Not sure if skip last digit has to be 1 for skip if flag but common. You could try all 6##1 to see which skips.
fwiw I've tried all of the IOT skip instructions that are noted in the pocket handbook thingy (6131, 6031, 6041, 6011, 6021, 6612, 6621, 6622, 6623, 6745, 6747, 6651, and 6661) and none appeared to trigger a skip.
I tested them by entering them into the left switches, hitting the "DO" switch, then checking the skip light on the console.