"Jean Parrot" wrote to "Mike Ross" (01-03-03  19:33)
 --- on the topic of "ll format ?"

 JP> How do you do a ll format ?

 MR> In ancient pre-IDE times it was done by using DEBUG g=c800:5 or
 MR> similar. This brought up the hd-controller bios ll formatting and
 MR> surface defect mapping utility.

 JP> You lost me in the dust here. You might have a procedure that would
 JP> do a ll. Good on you. I saw it done once by a techie and I was sure
 JP> that not too many here had the PRG to do that.

All, hdc's in the early days MFM, RLL, ESDI (esdi is really rll) had the
ll format utility burned in its eprom programming and it was accessed by
jumping to the execution address entry point using DEBUG. AT-IDE drives
made it impossible to do a ll format without a special utility and from
what I've heard some ide drives could not be ll formatted at all.
Glad to have taught you some useless trivia! 

 Mike
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