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Thread: IMSAI CP/M Kit

  1. #1
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  2. #2
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    I see a single unlabeled floppy--how does the seller know that it's an IMSAI (or any other system) boot disk?

  3. #3
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    Hi Chuck,

    I build this disk wich works together with the BIOS.

    BR
    Dietmar

  4. #4
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    Quote Originally Posted by Al Kossow View Post
    There isn't a single IMSAI product in that lot. There also is no CPU board.
    You're right. I offer an Extension for an IMSAI.
    BR
    Dietmar

  5. #5
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    Quote Originally Posted by kleindi View Post
    Hi Chuck,

    I build this disk wich works together with the BIOS.

    BR
    Dietmar
    Thank you for responding. I think it would be useful to amend the auction description to describe exactly what setup you built the BIOS for. Someone with a "true blue" IMSAI setup might otherwise have problems.

  6. #6
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    Thanks for pointing that out.
    But I'm not sure what's missing.

    I added the following Information:

    CP/M Bootdisk
    contains CP/M 2.2

    Monitorprogram and Bootloader in the 4k ROM on the Salota Mixed-Memory Board
    The BIOS is based on the skelet which is shown in the manual http://www.s100computers.com/Hardwar...floppy%20I.pdf on page 45.

    Please let me know, if you think that further important Information still missing.

    Thanks,
    Dietmar

  7. #7
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    Hi Dietmar,

    Looking at the BIOS listing in the Versafloppy manual, you're probably okay. At first, I thought that the BIOS might be Z80-specific. Then I noticed that, although Z80 syntax is used in the BIOS listing, the author has confined himself to 8080 opcodes. So all looks as it should.

    --Chuck

  8. #8
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    Thanks Chuck,

    I feel better now. Of Course I would like to avoid missunderstandings.
    BR
    Dietmar

  9. Default

    Anybody considering the purchase of this floppy drive subsystem should be aware this the Versafloppy floppy disk controller board is single density only.

    And, the single-sided (yielding about 250K-300K storage per drive) Shugart SA-800 floppy drives are non-rackmount drives, meaning that they have a larger footprint than the much more common rackmount type SA-800 and SA-850 drives, and these drives will not fit in 95% of all of the floppy drive enclosures that are available.

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