On Tue, 20 Nov 2001, Maciej W. Rozycki wrote:

>  I believe it's an Access.Bus feature -- the key combination gets sent as
> a separate signal that is wired to an I/O ASIC interrupt input as well
> (please someone correct me if I am wrong).  Thus no -- only a MAXINE with
> an LK501 would do.  Anyway it doesn't differ much from the halt button
> from the functional point of view. 

 A minor correction: the halt request is routed to a CPU interrupt
directly, not via the I/O ASIC.  This easies keeping it unmasked a bit,
but the problems still apply.

-- 
+  Maciej W. Rozycki, Technical University of Gdansk, Poland   +
+--------------------------------------------------------------+
+        e-mail: macro@ds2.pg.gda.pl, PGP key available        +