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  1. I forget to set the switch all the time and then...

    I forget to set the switch all the time and then wonder why the program won't load.
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    57289 We can boot several versions of ADSS...

    57289

    We can boot several versions of ADSS from DECtape, but all of the versions prior to V5A will not run any programs like PIP, or MACRO. The error that it reports says that a device is not...
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    The 8/I at the RICM has a negative I/O bus and a...

    The 8/I at the RICM has a negative I/O bus and a TC01 DECtape controller. This is a very early 8/I, so the TC08 may not have been available.
    Later you could order an 8/I with a positive I/O bus and...
  4. There are provisions in the I/O backplane for a...

    There are provisions in the I/O backplane for a 34H Oscilloscope display. It has 1024 x 1024 resolution and is normally used to drive a display like a Tektronix RM503 'scope. My guess is that it...
  5. Eventually we will be looking for SpaceWar to run...

    Eventually we will be looking for SpaceWar to run on our PDP-9.
  6. That is the way we wired the control boxes on the...

    That is the way we wired the control boxes on the PDP-12 at the RICM.
  7. Don't forget that there are two versions of the...

    Don't forget that there are two versions of the 8/e front panel. Lou's is the early version where the rotary switch turns a full 180 degrees. Mine was the later version where the rotary switch only...
  8. You can try rodsmallwood52@btinternet.com I...

    You can try rodsmallwood52@btinternet.com

    I bought an 8/e front panel from him. It need a little adjusting to the power switch hole, but otherwise looked beautiful.
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    Maybe we can make a video if it booting tomorrow.

    Maybe we can make a video if it booting tomorrow.
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    We connected an ASR33 Teletype to the console...

    We connected an ASR33 Teletype to the console port on the PDP-9 today. Much more fun than the VT220.
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    I modified resttd8e to work with PDP-9 SIMH...

    I modified resttd8e to work with PDP-9 SIMH DECtape images and was able to make physical DECtapes.

    Today we got the PDP-9 to boot the ADSS V4E monitor from DECtape. There are still some issues...
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    Palbart...

    Palbart https://www.pdp8online.com/ftp/software/palbart/

    You can run the binary on a real PDP-8 or under SIMH.
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    I got the PDP-9 to format DECtapes today. The...

    I got the PDP-9 to format DECtapes today. The clock that generates the timing track was running a little slow, so it ran off the end of the tape before it finished. It is currently adjusted to have a...
  14. The Rhode Island Computer Museum has an...

    The Rhode Island Computer Museum has an Integrated Server 3006 which is very similar to the Multiprise 3000. We could use any I/O cards that you don't plan to use.
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    Could you use SIMH to read the PAL source like it...

    Could you use SIMH to read the PAL source like it was a paper tape image and save it on the diskette image?
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    BQT, I used PIP-10 to extract files from a...

    BQT,

    I used PIP-10 to extract files from a PDP-10 KA10 DECtape a few weeks ago. I should look at the code.
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    I am learning way more than I wanted about...

    I am learning way more than I wanted about dumprest for the PDP-9. The dumptd8e_18 that is on that is on Dave's WWW page does not fiddle with the format of the DECtape image file that is saved on...
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    We tried to format a DECtape on the PDP-9 using...

    We tried to format a DECtape on the PDP-9 using the paper tape that Mattis punched for us. The formatter program loads and runs, but doesn't like the zero that we entered for the drive number. We...
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    The MEMORY ADDRESS test is supplied in RIM format...

    The MEMORY ADDRESS test is supplied in RIM format and uses a very limited set of instructions.
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    2, IF is Instruction Field and DF is Data Field....

    2, IF is Instruction Field and DF is Data Field.
    3, If you loaded the MAINDEC into memory field 1, then you would set the Switch Register to 1.
    3, If you loaded the MAINDEC into memory field 0,...
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    Well, that didn't go so well. I started making a...

    Well, that didn't go so well. I started making a PDP-9 disassembler for paper tapes. It gave me a listing of the ADSS bootstrap tape that came with SIMH. I toggled in the bootstrap and started it....
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    The normal PDP-8 & TD8E DECtape formatter knows...

    The normal PDP-8 & TD8E DECtape formatter knows how to create PDP-9 DECtapes. It took a few tries, but I now have three blank PDP-9 DECtapes.

    This week I tried several of the ADSS images that...
  23. Very nice! I recently got an 11/53, so loading...

    Very nice!

    I recently got an 11/53, so loading UNIX is on my to do list.
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    SIMH PDP-9 DECtape images include some blocks...

    SIMH PDP-9 DECtape images include some blocks that the PDP-9 wrote in the reverse direction. These blocks are stored in the SIMH DECtape image in the complement obverse format. SIMH will convert...
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    Now for the next PDP-9 adventure. Using SIMH I...

    Now for the next PDP-9 adventure. Using SIMH I have SYSGENed a version of ADSS tailored to match the hardware in the PDP-9. We now need to write this image onto a real DECtape. I have used my PDP-8/e...
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