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RE: [midatlanticretro] Stock IBM XT low level format program want ed

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  • Kelly Leavitt
    Here, in all its glory.... ... From: Marvin Johnston [mailto:marvin@rain.org] Sent: Sunday, March 20, 2005 12:26 AM To: ClassicCmp Subject: Low-Level PC
    Message 1 of 1 , Jul 5, 2005
      Here, in all its glory....
      -----Original Message-----
      From: Marvin Johnston [mailto:marvin@...]
      Sent: Sunday, March 20, 2005 12:26 AM
      To: ClassicCmp
      Subject: Low-Level PC Formatting Using Debug Commands

      I just ran across this and thought it might be of interest for anyone
      doing a low level format on a PC (not AT) type controllers. It was taken
      from a February 13, 1989 issue of Tech Times that appears to be a
      ComputerLand Confidential publication (this is a copy.) My usual
      procedure was to unassemble C800:5 or C800:6 and G=????:? the address
      that was a jmp instruction. I've never used the :800 or tried to format
      a Xebec controller.
      Company Debug Command
      Adaptec -G=C800:CCC
      DTC -G=C800:5
      Omti -G=C800:6
      Western Digital -G=C800:5 or
      Xebec Series of commands
      -o322 0
      -o320 04
      -0320 00
      -o320 00
      -0320 00
      -0320 05
      -0320 07 (use 17 if embedded servo dr)
      At this point, the LED on the drive should come on to indicate that the
      drive is formatting. When the light goes off, coninue:
      The last entry should get 00 status back, indicating a successful
      -----Original Message-----
      From: billdeg@... [mailto:billdeg@...]
      Sent: Tuesday, July 05, 2005 3:35 PM
      To: midatlanticretro@yahoogroups.com
      Subject: [midatlanticretro] Stock IBM XT low level format program wanted

      [this is a copy of an email I also sent to classic cmp] I have an IBM XT
      with all original parts. This is the middle era
      version with a Xebec/IBM harddrive controller (no dip switches),
      newer diskette drive, and an IBM 20 MB hard drive. The computer
      boots with no errors. It looks like the computer was never used,
      it's pristine. Might anyone have a link to a program that I can
      use to run a low level format specific to this controller card and
      hard drive? I have had trouble locating the low level format program
      via DEBUG. I have found a number of Debug commands on the Internet
      for other drives and controllers, but none for this. I have searched
      the segement offsets between C000:0000 and EC00:0000 in 0400 increments.
      ..Maybe I am blind! Is there an IBM official low level format diskette
      image out there? That would be preferred.
      -- E N D --


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