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Recent content by larsbrinkhoff

  1. larsbrinkhoff

    PDP-6 Status Display Panel

    Checking https://github.com/larsbrinkhoff/its-archives/blob/master/ailab/ITS_Hardware_Memo_1.pdf I see the memo refers to the two processors as Processor A and Processor B, so that would be consistent with A SEL(elect) and B SEL to signal which processor is accessing the IO bus. RD RQ and WR RQ...
  2. larsbrinkhoff

    PDP-6 Status Display Panel

    PIA means PI channel assignment, which means the selection of one of seven interrupt levels on a PDP-6 or 10. A device will almost always have a programmable interrupt level, and it's usually CONO (and CONI) bits 33-35. Sometimes a device can interrupt on several channels, and then there are...
  3. larsbrinkhoff

    TENEX, anyone?

    I already answered on the ccmp list, but for completeness I'll post this here: https://gunkies.org/wiki/DUMPER_tape_format I wrote a C program to read and write MINI-DUMPER and DUMPER tapes. As for TENEX in general, I believe this is the closest anyone has been to running it in this...
  4. larsbrinkhoff

    Overview site - PDP-1/8/10/11 replicas

    I think we should also mention it runs WAITS, the Stanford AI lab system. And TOPS-20, although it’s anachronistic to run it with a KA10 console. There has also been some work on bringing up TENEX.
  5. larsbrinkhoff

    Overview site - PDP-1/8/10/11 replicas

    Check under "How to get one" here: https://obsolescence.dev/pidp10.html
  6. larsbrinkhoff

    Happy DEC-20 and Merry New PiDP!

    The replica is supposed to run TOPS-20 in all it's extended addressing glory. Of course that's utterly inappropriate for a KA10 console, but who am I to judge?
  7. larsbrinkhoff

    Happy DEC-20 and Merry New PiDP!

    Steins;Gate, amirite? Not for sale just yet. Plastic case is supposed to arrive to Oscar's factory late January next year.
  8. larsbrinkhoff

    Happy DEC-20 and Merry New PiDP!

  9. larsbrinkhoff

    New Datapoint 2200 owner.

    Is ARCnet support considered for the emulator? Oh, and here's a Datapoint t-shirt: https://techsquare.myspreadshop.se/datapoint
  10. larsbrinkhoff

    PDP-9 at the RICM

    That's a scary way to start a post. Glad the rest of the message was more optimistic!
  11. larsbrinkhoff

    PDP-11/70 Microcode PROM images? (M8123 RAC)

    Are you planning on doing anything with the microcode?
  12. larsbrinkhoff

    VCF Zürich / Switzerland on 19 & 20 November 2022

    Oscar Vermeulen is going to show his PiDP-10 prototype.
  13. larsbrinkhoff

    How common is a VT100 w/out the AVO add-on today?

    Not sure if I'm horrified or delighted. But in a good way!
  14. larsbrinkhoff

    GT40 Spacewar from MIT

    I tried throttling all the way back to SET THROTTLE=1k or something, but there was no change.
  15. larsbrinkhoff

    GT40 Spacewar from MIT

    https://github.com/pdp11/mit-gt40-spacewar This Spacewar game was written by Richard C. Waters and Meyer A. Billmers around 1976, for the GT40 at the MIT AI lab robotics group. Files courtesy of Richard C. Waters and Berthold K.P. Horn. Back in the day, the files were assembled using MACRO-11...
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