On Thursday 05 January 2006 10:32, Hanzac Chen wrote:
> So, can it sense the pit has been reprogrammed by external
> application automatically, and recover from that? Or we have to ask
> the
> application to support us?

Reprogramming the PIT is such a common practice for DOS applications 
that I guess the only solution is to either use the default PIT 
frequency, and hope our handler will be called by the application evem 
of it sets its own handler (as DOS does), or virtualize the PIT.
Bye,
   Salvo
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