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Modify the Real Time Clock Driver(more).

Hello! I want to have a more information about making or modifying the real time clock driver in win95 or in dos.
I will make a new device that supply real-time to PC.
and I will make the new-RTC driver replaced a old driver.
The experts "ESI" suggested that steals the interrupt, but
I don't know the method to steal. would you tell me the method.
Thanks in advance.

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ESI

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mgkim

ASKER

Sorry! "ESI" : I don't understand your answer. what is the pointer of the interrupt? is it the interrupt handler?
I guess that RTC-driver will be excuted when any application want to get the current time. then will interrupt be issued?
Also, I know that the RTC-drvier is not active, is passive.
It issues the interrupt when alarm is setting. Is my guess is wrong?
Anyway, thanks to your answer, sincerely!

ESI

I figure out there are 2 differents interrupts, one that raise the alarm, and the other, the timer int. that raise about 18.2 times per second.

mgkim

ASKER

Thanks to "ESI"'s response!
Will you introduce some reference(books)? or will I ask about more information using e-mail? otherwise will I ask more in this site?
my e-mail address : mgkim@hyowon.cc.pusan.ac.kr

ESI

Try to ask, as I have no docs anymore (look for a DOS Interrupts book) ask in this site after you had a look in the KB of microsoft indeed !