Low-Level PC Formatting Using Debug Commands

[gordonjcp at gjcp.net]

>>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.

>>Xebec           Series of commands
>>                 -l322

[snip]

I've done this on an original IBM XT with the 20M MFM drive.  It works.

Gordon