🚀 go-pugleaf

In article <DEVEN.90Apr12055052@netserv2.rpi.edu> I write:

Deven> Now what confuses me is this: WHY is stepping a track a
Deven> requirement to update the signal??

On 12 Apr 90 12:17:58 GMT, new@udel.EDU (Darren New) said:

Darren> I think the signal gets CLEARED when the drive is stepped.
Darren> That is, once set, it stays set until the drive is stepped.
Darren> Therefore, read the signal and then step the drive.  The next
Darren> insert or remove will set the signal again.  -- Darren

Meaning it's a latch bit set by a pulse when the disk is inserted and
cleared when the drive is stepped?  No, that can't work either; it
still seems in any evet that the drive must "know" at some level
whether or not there is a disk there...  and it seems it must know
whether or not you step the heads.  So stepping the heads makes it
tell the computer.  Is this right?  If not, what?  If so, why?

Deven
-- 
Deven T. Corzine        Internet:  deven@rpi.edu, shadow@pawl.rpi.edu
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