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Thread: CP/M System Disks - Please Read

  1. #11
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    Quote Originally Posted by barythrin View Post
    See? I should always check the forum before posting redundant information I wasn't aware of this effort by Don (great job and unfortunate loss) but since Curtis is also trying to find some of these but I was going to repost the url above which is live. Dave's also here somewhere though I'm not sure if he logs in still. What this does make me increasingly aware of is how unfortunate it is when we can't share our archives online or consolidate them and they get lost on disk due to various happenings. Kinda puts a positive spin on the sharing of old applications to keep these things around for all to use, enjoy, and help preserve.
    It may not be a loss. Don's widow passed away recently and there's a very diplomatic determined guy holding discussions with Don's son about finally retrieving the archive.

    (Dumb question) Does the library of Congress hold software archives for copyright purposes? Do they or the proper authoritative entity ever release that software for public domain or retrieval?
    Not usually--and note that in any case, the works would be under copyright until at least 2070 in most cases. While CP/M itself may be in a free-use open-source category, any accompanying code specific to a given system (such as the BIOS) would still be covered by copyright. After the GATT URAA negoations in 1978, specimen copies, proof of publication and copyright notices and registration were no longer required in the US. The rule of thumb is that a work is copyrighted unless it specifically says otherwise. The LOC would most likely not cooperate when it comes to works still under copyright.

  2. #12
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    Somehow or another I completely missed this thread!

    In light of what Gaby and Dave have going on, I think any images I may pick up next weekend, I will send copies to both of them along with what I already have. That way there will be at least 3 places where stuff can be found.

    Plus, we can hope the very diplomatic determined guy will get through to Don Maslin's son.
    Outside a dog, a book is a man's best friend. Inside a dog it's too dark to read! Groucho Marx

    Curtis McCain

    http://pages.suddenlink.net/curtismc/

  3. #13
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    Well, I didn't get a blessed thing done on my archive this past weekend. Seems the Dell POS I was going to use has a bad floppy controller and somehow or another locks the 5.25" drive into 1.2 mode even if EVERYTHING says it's a 360K! Oh well, back to a generic no-name machine. They always work better!
    Outside a dog, a book is a man's best friend. Inside a dog it's too dark to read! Groucho Marx

    Curtis McCain

    http://pages.suddenlink.net/curtismc/

  4. #14
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    Curtis,

    What make/model of drive and how are any drive jumpers set?

  5. #15
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    Im trying to find a copy of CPM/3 for the Tandy Model 4/4p...
    Altho I found a source from the site that has the emulator Im using, it is in ACE format and every winace Ive downloaded claims its 'broken'...

    As long as I can find the system/bios file(s) I could probably connive a working system from it...
    It neednt be in the original format... and could even be in a DOS folder.

    Assistance would be greatly appreciated!

  6. #16
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    Got a URL, leed?

  7. #17
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    Um... dat's LEEB...

    Im sorry... for 'my source'?

    David Keil's TRS-80 Emulator page...

    http://www.discover-net.net/~dmkeil/index.htm

    Because of this emulator I was able to 1) create 3.5" disks to boot from, and 2) configure the working IDE drive.

    If only the cp/m3 worked...
    Last edited by leeb; August 9th, 2010 at 05:50 PM.

  8. #18
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    Sorry, leeb.

    I think the archive's damaged--note the big block of 0000 between CAF0h and 30ED0H. That doesn't look right. i.e. out of 208,896 bytes, 148,448 of them are zero.

  9. #19
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    Yes, I noticed that when I opened it in notepad... last nite.

    Think simply removing the nulls would do any good? Just a thought.

    Id like to get CPM3 working so that I will know it a bit better when I attempt a re-write for the system Im attempting to design/build...

    A 'kinda-down-the-road' affair, as I have 2 machines that still require repair (and whats left of my hair ) but I want to be completely familiar with the memory-banking techniques it uses before I finish the system...

    Thanks for taking a look! Please feel free to PM me if you happen to find anything useful!

  10. #20
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    I'll have a look through my collection when I get a chance to see if there's something there for the Mod 4 that you can use. But no--I don't think that removing the nulls will fix anything.

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