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Thread: Initializing an Exidy Sorcerer CP/M disk

  1. #1

    Default Initializing an Exidy Sorcerer CP/M disk

    Some time ago I was lucky to find an Exidy Sorcerer with an S-100 expansion unit, FDC, drives and some software. It had / has some issues which I am working on, which I am documenting on Stardot. There are a few members there that have some Sorcerer knowledge on Stardot but essentially it is an Acorn forum so it does not get much resonance there.

    Apart from the last hardware challenge (getting the floppy drives to work) I would like to find a way to back up some of the floppies that came with it.

    The Vista VOS CP/M manual states that, to make a backup the floppy used must be initialised. The Vista VOS disk boots to CP/M and I can start INIT. After typing the disk identifier (A) it accesses the disk drive (motor running) and after a while the disk drive head moves a few tracks. Then it asks to confirm initialising after which the floppy drive motor starts running, but that's where it ends; it never stops.
    vista vos initialise.jpg

    I've tried different drives and different floppies, no change.

    It also came with CP/M 2.2, which has a SYSGEN tool, but that does the same.

    • Is there something I am doing wrong in this process?
    • Is it possible to use a PC to initialize Sorcerer-compatible CM/P disks?


    Thanks!

  2. #2
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    22Disk should be able to format the 48 tpi SSDD floppies; use definition EXI1.

  3. #3

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    Quote Originally Posted by Chuck(G) View Post
    22Disk should be able to format the 48 tpi SSDD floppies; use definition EXI1.
    Thanks Chuck! I did not know about 22Disk. Regrettably it seems that my old (Pentium 3) PC is not quite old enough to run 22Disk; I could not get it to format anything

  4. #4

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    Well, I found the reason for my slow progress on this; the disk interface is hard sectored! 40T, 10 sectors, 512 bytes/sector. Should have read the documentation more thoroughly.

    Inspecting the disks that came with it, they are all hard sectored. INIT works fine with a hard sectored floppy.

  5. #5
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    That makes sense--I don't have any samples of the Sorcerer hard-sectored floppies--and I suspect neither did Don Maslin.

  6. #6
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    Hi, I need CP/M, either floppy or cart based, for my Exidy Sorcerer.

    I want to format and use the floppy drives - I have the S-100 expansion and interface card.

    Iíll make a copy and return your disk if you have one.

    Thanks-
    Steve.

  7. #7
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    Quote Originally Posted by dutchacorn View Post

    • Is there something I am doing wrong in this process?
    • Is it possible to use a PC to initialize Sorcerer-compatible CM/P disks?


    Thanks!
    Have you made any progress? If you can boot CP/M and read and write normal .COM files there can't be too many possibilities left to explain why you are having trouble formatting a blank 10 sector floppy.
    I am reading old manuals at the moment to teach myself CP/M and one of them suggests using the format command FMT as the first step - do you have FMT.COM ?

  8. #8
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    Quote Originally Posted by steven stengel View Post
    Hi, I need CP/M, either floppy or cart based, for my Exidy Sorcerer.
    You still haven't said which floppy controller you have in your expansion box

    There are now TWO possible hard-sectored formats, Micropolis 16-sector and Vista 10-sector

    The disks we have are 16. The CP/M came from Computer Mart

    Exidy_2.2_Micro-Mart.jpg

    And I've not seen any CP/M that ran off a cart.

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