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  1. Looking for a GIMIX SS50 system to restore and preserve

    Looking for a GIMIX SS50 system to restore and preserve

    PM me.
    Roger in Texas
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    Nice Altos, I wonder if it will actually boot...

    Nice Altos, I wonder if it will actually boot from the HD.
    I've restored a couple of ACS8000's but never got a HD to boot, only FD.
    Roger in TX.
  3. Getting 360K 5.25 floppy Panasonic JU-455-7 working on an AMPRO LittleBoard

    I'm trying to get a Panasonic JU-455-7 5.25 floppy drive to work on an AMPRO Z80 Littleboard.

    The Littleboard works with both DS and SS drives, so minimal unknowns here.

    The JU455 works as a...
  4. Altos 8000 with 8100 PCB dual SSDD drives

    Does anyone have a working Altos 8000, the old kind with white face, single user that has the 8100 PCB and the 1791 DD dual drive system?

    I'm restoring one and have am able to get a % prompt, and...
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    63618 It has "00-02" on it. This SCSI port...

    63618
    It has "00-02" on it.

    This SCSI port makes me wonder about using a SCSI-to-SD card system.
    Have you ever seen that done on a little board?

    I think the cap is .1uf. Have ordered a...
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    It has a 1772-PH in it, along with U6. The...

    It has a 1772-PH in it, along with U6.

    The dual drives in this thing are single-sided.
    I've been able to boot with a double-sided 5.25 drive and the diskimage from Dunfield, so making progress.
    ...
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    8" drive on AMPRO LittleBoard Z80?

    Has anyone seen any documentation for putting a standard SSSD 8" drive on an AMPRO Z80 Littleboard?
  8. Wanted AMPRO Littleboard Z80 System images

    I'm looking for an AMPRO littleboard CPM 5.25" SINGLE SIDED disk image.
    I have the doublesided image on a working system, but this hardware has 2 SS drives.
    If anyone has the actual floppy I can...
  9. Per this story...

    Per this story
    https://computerhistory.org/blog/early-digital-research-cpm-source-code
  10. My understanding from Allen/Larry Green is there...

    My understanding from Allen/Larry Green is there is possibly a copy of PIP source code that had been deleted and possibly recoverable.
    My understanding is that the sources found so far had gaps that...
  11. I have a CPMUG #5 disk image - PIP source code???

    My understanding is that there are some CPMUG #5 diskettes out in the wild that possibly have erased PIP.PLM source code
    that would contribute to CP/M historic archives.

    I have an old CPMUG #5...
  12. In search of Altos ACS 8000 8" disk images for MP/M and Theos

    In search of Altos ACS 8000 8" disk images for MP/M and Theos.

    If you have the diskettes, I can make images.
  13. Apparently r.com and w.com can't be used in a...

    Apparently r.com and w.com can't be used in a SUBMIT file, so I can't create a make file to move my source code from my windows/dos drive to the simh CPM drive, assemble it, run it.

    Does that...
  14. Thank you, that seems to help a lot. I don't see...

    Thank you, that seems to help a lot.
    I don't see that in the user guide. V3.9.
    I guess it's something to do with diagnostics.
    Thanks again!
  15. The series II systems had on-board SD controllers...

    The series II systems had on-board SD controllers using intel's chip (what was it 8272 or something) for the internal drive.

    Then there was a board set for either SD or for intel's proprietary...
  16. SIMH altairz80 emulation speed? Console to 9600 baud??

    Doing some asm app dev using SIMH and the altairz80 and CPM2 emulators on an I7 windows PC.

    My software does constant display and runs too fast.

    I've tried setting throttling to 1% and 1K but...
  17. Track 12 has some bad sectors on that disk...

    Track 12 has some bad sectors on that disk according to imagedisk.
    When I get my MDS888 converted from DD to SD I'll try to boot it.
    Thanks a bunch.
  18. Here's what I would do with that MDS800 image...

    Here's what I would do with that MDS800 image :)63237
  19. Oh wow, yes, I want a copy of that please sir. ...

    Oh wow, yes, I want a copy of that please sir.
    What's the easist way?
    Is it SSSD or the weird intel MDS SSDD?
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    The answer ends up being, you cant, but you can...

    The answer ends up being, you cant, but you can set the CMOS config to a 1.2M drive and that fakes it out.
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    Teledisk for 8" drives

    I have a working Imagedisk system with an 8" shugart drive.

    I'm trying to use teledisk now because I'm suspicious that the conversion utility from .td0 to .imd is not working right.

    Teledisk...
  22. My dual-drive Altos is an 8000-15A. I don't...

    My dual-drive Altos is an 8000-15A.
    I don't have access to a format program. Where/what is it for the altos?
    The only one I've seen is on the diag disk which I can't get to boot.
  23. CPM224.IMD is 77 trk, 26 sec, single den, single...

    CPM224.IMD is 77 trk, 26 sec, single den, single side

    CPM224A.IMD is 77 trk, trks 0-2 are SD, the rest are dd. But single sided.
    This one won't boot in my Altos 8000-15A which has shugart 801 SS...
  24. I said that wrong, the one that boots is CPM224...

    I said that wrong, the one that boots is CPM224 which is SS SD whole disk.
    The CPM224A is SD on the first 3 tracks, then DD for the rest - it won't boot or read.
    My Altos has the 8500 CPU with the...
  25. I found that one of the CPM 2.2 images does boot,...

    I found that one of the CPM 2.2 images does boot, but not most of them, and not the diag disks.
    The one that boots is CPM224A, none of the others.

    The Altos archives are lacking. Now that I have...
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