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Type: Posts; User: Twospruces

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  1. Replies
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    I didn't know about debug. Thanks, I 'll try...

    I didn't know about debug. Thanks, I 'll try that first, as I want to be able to look at a range of memory. Basically I am debugging XUB on a machine that may use memory differently than XUB...
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    DOS memory inspector?

    Anyone have a suggestion for a good simple memory inspector? I want to confirm what Int13h and int19h contents are.
    thanks in advance.

    (I did see that PCDOC40 includes this function but it is not...
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    This seems like a bug. the reason this broke,...

    This seems like a bug. the reason this broke, is that the variables listed are being compressed, and hence modified. The math should work regardless of data compression, shouldn't it? ...
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    EDIT: I had removed MODULE_STRINGS_COMPRESSED...

    EDIT: I had removed MODULE_STRINGS_COMPRESSED from the COMMON list, and that seemed to cause the issue.
    That's unfortunate; I like to see that the binary matches the code when I am trying to...
  5. Well I have R602 from the repo, and I have the...

    Well I have R602 from the repo, and I have the tools installed, and I can compile.

    So I suppose the adventure of figuring out what is wrong commences. I hope to end up with a streamlined XUB...
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    Zenith Z-171 - memory question

    My Z-171, loaded with 640k, seems to report that the upper 24k is missing. This continues to be reported as I remove ram from 640 to 576 to 512 to 256kB. Always top 24k is "missing".

    Checkit...
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    wow! that's some serious work. impressed that...

    wow! that's some serious work. impressed that you could fix the bios!
  8. Here is the primary side of the new PCB for this...

    Here is the primary side of the new PCB for this thing.
    56550

    The idea is that when it is installed (BTW - the RGB Video board can't also be installed!) in the main board connector, it is flush...
  9. What I will do, is take some photos of the...

    What I will do, is take some photos of the finished board, both on the bench and installed in the Z171.
    Software wise, the solution isnt perfect but it is pretty good.
    Maybe over time with some...
  10. I'm on revision 2 of this PCB. I should have...

    I'm on revision 2 of this PCB. I should have that assembled and working soon.
    Let me know if you want one.
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    Wondering if anyone knows of a good affordable...

    Wondering if anyone knows of a good affordable source for compact flash sockets? Digikey is a bit pricey. Wondering if there is a better source? (ebay looks thin) thanks.
  12. Yah thanks. Checked that datasheet and it is...

    Yah thanks. Checked that datasheet and it is 10mA per MHz like the 80C85...so seems like a good upgrade.
  13. Yes that is the point of this project. Compact...

    Yes that is the point of this project. Compact flash "HDD" . Its working well with some simple rules for how to power up and reset. I have a new pcb to test out due to the reversed pinout of the...
  14. Interesting read. Memmap looks useful. I...

    Interesting read. Memmap looks useful. I expected to see entries for BIOS ROM images also, but they are not listed. I'll try some of the other suggestions. Definitely trying to confirm no...
  15. Thanks for all this input folks. I'll give them...

    Thanks for all this input folks. I'll give them a try. Cheers.
  16. MSDOS 3 - tool for listing out how memory is allocated?

    Is there a way to see how MSDOS is utilizing the first 1M of RAM in a PC?

    I can see how much free memory I have but I would like to see what is occupying the different blocks in the whole address...
  17. Not sure; didn't actually test with or without...

    Not sure; didn't actually test with or without full mode. I would say I saw no difference that I could attribute to R602.
    In my last test using R601 with late init, I did not enable full mode.
    ...
  18. Thanks for this modified 601. This is actually...

    Thanks for this modified 601. This is actually my favorite XUB version now, not because it fixed the boot up issue, but because it makes boot up smoother. I'll explain.

    Wrt correct detection of...
  19. I've been able to get something working...

    I've been able to get something working reasonably well, with caveats.

    * while it is possible to use DOS newer than 3.1, newer DOS tends to not work great with the floppy drives in the Z171. ...
  20. Update re Z171 + XT-CF lite rev2. * tried R602...

    Update re Z171 + XT-CF lite rev2.

    * tried R602 again, ran XTIDECFG on raw image, autodetect, turned off block transfers, enabled full mode, saved image.
    * installed image into flash
    * system now...
  21. thanks for the tip. I am generally now running...

    thanks for the tip. I am generally now running XTIDECFG on all raw initial images before I run them, but I missed the compatibility mode. I'll try that.

    I'm not using "Full Operating Mode"...
  22. mistake; I'm actually using R580 IDE_XTL.BIN. ...

    mistake; I'm actually using R580 IDE_XTL.BIN.

    * R590 and newer do not work at all.
    * R566 seems to behave the same way but I don't have R566 IDE_XTL.BIN (does anyone have it?)
    * I have a 16MB...
  23. Hi, I have an interesting update. First, the...

    Hi, I have an interesting update.
    First, the major change I made was to use R566 IDE_XTL.BIN so that I have the boot menu available. This has proved very valuable.
    Seems that the issue is now...
  24. Thanks, I do in general see XUB report the Cf...

    Thanks,
    I do in general see XUB report the Cf card presence.
    I will try the load that includes the boot loader menu and see if I can get better control over boot up. Thanks
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    Thank you for these thoughts. I have a few...

    Thank you for these thoughts. I have a few things as to test further and will come back with an update. Cheers.
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