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  1. Thanks! I will try these out.

    Thanks! I will try these out.
  2. I should say, the PET model I'm currently using...

    I should say, the PET model I'm currently using for this is an 8032, but the question would apply to any PET model.
  3. Replacing the LOAD routine on a PET.. possible without ROM replacement?

    Hi there,
    Messing around with some PET software development, and I would like to replace the LOAD routine with a custom ML routine located elsewhere in memory.
    I've done this on a C64, which was...
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    Thanks very much, this is quite useful. I rigged...

    Thanks very much, this is quite useful. I rigged up the hard reset switch to ground pin 22 through a 100 ohm resistor, which works well. May include the option to go to the monitor as well.
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    Thanks Robert! At long last getting back into...

    Thanks Robert!
    At long last getting back into some vintage computer activity after a new addition to our family last year.
    The PETpix 2 consists of a small interface for the rPI which connects to...
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    Reset switch for PET 8032

    Hi all,
    I wanted to make a simple reset switch for my 8032, to spare wear and tear on the machine while I mess around with some software development.
    I know the J4 header has /RST on pin 22. Is it...
  7. Has anyone used the ESP8266 wifi microcontroller for any retrocomputing projects?

    May be late to the party with these, but I'm planning to do some hacking around with the ESP8266 wifi microcontroller and connect them up to some of my vintage machines. They are surprisingly cheap...
  8. Wow. Amazing haul! Whenever I see people clearing...

    Wow. Amazing haul! Whenever I see people clearing out a house I always take a second glance, just in case a vintage computer is hiding there, but so far that has never happened. Glad it did happen at...
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    Tips on C64 chain-loading with ML

    Hi all,

    I'm working on some C64 software, and was interested in chain-loading programs with ML. Specifically, I have a menu program which allows you to select between a few different options, then...
  10. Very nice. Does the MZ-800 have a cassette in/out...

    Very nice. Does the MZ-800 have a cassette in/out jack on the back as well? If so you can probably play your MP3-ized software into the computer from the player of your choice (phone, other computer,...
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    It is definitely possible to use the PI...

    It is definitely possible to use the PI standalone, and in fact this has been done before a few years ago, in a very cool project: http://www.lemon64.com/forum/viewtopic.php?t=48991

    You do need...
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    Yup, works with all pi models (0,1,2,3) and only...

    Yup, works with all pi models (0,1,2,3) and only uses the SPI interface on the PI, so you can still use the other GPIO for something else. With the zero being $5 you get a crazy cheap multi-retro...
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    Yet another C64 storage device!

    Hi all,
    I've been away from this forum for a while, and it has been too long! With work and personal stuff accumulating, haven't had much time to spend on vintage computing of late, but hoping to...
  14. Attempting to resurrect an Epson PX-8 Geneva

    Hi all,

    I recently found an Epson PX-8 at an estate sale, and I'm attempting to nurse it back to health. No success so far, but wondering if anyone may have some ideas.
    Here's what I've done so...
  15. The MAME version is the 'Dark Tower' arcade game:...

    The MAME version is the 'Dark Tower' arcade game:
    http://www.arcade-museum.com/game_detail.php?game_id=7525

    I'm talking about the 'Dark Tower' board game from 1981 with the computerized tower at...
  16. Dark Tower board game computer - any information?

    Hi all,
    It's been a while since I've been on this forum, and glad to be back!
    Recently I was thinking about the board game 'Dark Tower' which I spent many hours playing in my youth.
    At this point...
  17. Great find. Will check this out over the weekend....

    Great find. Will check this out over the weekend. The directory implementation code seems like it will be useful.
    A bit of progress from the last time I looked at this -
    Last time, it appeared...
  18. I'm interested in this stuff, and live fairly...

    I'm interested in this stuff, and live fairly nearby. Any idea on price? I also PM'ed you about it. Thanks
    - Mike
  19. I spent some time last evening looking into the...

    I spent some time last evening looking into the DIRECTORY stuff on PETdisk, and what I've found so far -
    I spoke too soon about the DIRECTORY command looking different than a LOAD,"$",8.
    In fact,...
  20. I did a quick test of DIRECTORY on the PETdisk...

    I did a quick test of DIRECTORY on the PETdisk while looking at the IEEE-488 bus commands coming in.
    It looks like DIRECTORY works much like a LOAD, but with a control byte instead of a filename. ...
  21. On the DIRECTORY and CATALOG commands - This is...

    On the DIRECTORY and CATALOG commands -
    This is actually a good opportunity to get those working as well, while I have the debugger and programmer hooked up to the PETdisk hardware.
    Will take a...
  22. No problem skipping straight to the latest...

    No problem skipping straight to the latest version.
  23. Oops, sorry about that. I had a link to the wrong...

    Oops, sorry about that. I had a link to the wrong filename. It's now fixed!
    http://www.bitfixer.com/bf/petdisk/petdisk-technical
    If you experience any issues using the PETdisk to read/write SEQ...
  24. The version 3.0 beta firmware is now up at:...

    The version 3.0 beta firmware is now up at:
    http://www.bitfixer.com/bf/petdisk/petdisk-technical

    It's installed by copying the firmware file to the root directory on an empty, newly formatted SD...
  25. Hi Heather, Thanks, glad you like the PETdisk!...

    Hi Heather,

    Thanks, glad you like the PETdisk! Happy to help keep making it better.
    I'm no longer offering the PETdisk as a kit, but it's available fully assembled.
    I wasn't able to keep up...
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