From: forsyth@plan9.cs.york.ac.uk forsyth@plan9.cs.york.ac.uk
Subject: locked keyboard
Date: Tue, 21 Nov 1995 09:09:05 -0500 [thread overview]
Message-ID: <19951121140905.47ILh1DcT8YfEsNDDuAq4uO0bVBVxVJ2JZVxHR1L8rw@z> (raw)
i've checked the IBM PC/AT handbook.
on a machine with a keyboard controller
compatible with that specification,
both bits 5 and 6, not just bit 6, change
the keyboard's handling of scan codes.
the other option looks like a PC/XT compatibility mode to me.
perhaps the mouse enable/disable appeared in the PS/2
where they'd done away with PC/XT compatibility?
i suppose there must be a bit somewhere to tell
the difference, but we haven't got a PS/2 handbook here.
oh god i hate this stuff.
next reply other threads:[~1995-11-21 14:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
1995-11-21 14:09 forsyth [this message]
-- strict thread matches above, loose matches on Subject: below --
1995-11-21 13:46 forsyth
1995-11-21 8:08 Dave
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