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re: [midatlanticretro] Digital PDP 11/05 Question - how to show the acumulator value?

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  • Bill Degnan
    Correctiion: I don t see the counting on the screen should be I don t see the counting on the light display. Bill ... acumulator value? ... by ... but
    Message 1 of 2 , Jan 28, 2010
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      Correctiion:

      "I don't see the "counting" on the screen"

      should be

      I don't see the "counting" on the light display.

      Bill

      -------- Original Message --------
      > From: "Bill Degnan" <billdeg@...>
      > Sent: Thursday, January 28, 2010 4:54 PM
      > To: midatlanticretro@yahoogroups.com
      > Subject: [midatlanticretro] Digital PDP 11/05 Question - how to show the
      acumulator value?
      >
      > Hi,
      > The 11/05 has only the one row of lights.
      >
      > When I enter a simple counter program into memory and run it I don't see

      > the "counting" on the screen, but if I HALT and CONT step by step the
      > counter output is displayed (the lights display octal numbers increasing
      by
      > one, each time I press CONT.).
      >
      > On the PDP 8 (you can switch the display between the memory and the
      > accumulator) or PDP 11/40 (two rows of lights) it's not a problem, but I

      > was wondering if anyone had a solution for the single row display of the

      > 11/05? I guess I need to determine what the show accumulator command is.

      > I have to do some research.
      >
      > I am puzzled why the counting appears when you step through the program
      but
      > not when a person just runs it normally. I don't think it's just so fast
      I
      > don't see the output.
      >
      > I guess it would help if I posted my code, I will do that next time I am

      > working on it.
      >
      > If I figure it out myself I will let you know.
      >
      > Bill
      >
      >
      >
      > ------------------------------------
      >
      > Yahoo! Groups Links
      >
      >
      >
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