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Article #83

Re: HELP! My TSR won't activate in many games!

#83
From: Ron Dippold
Date: Tue, 11 Aug 1992 16:16
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ross@zooid.guild.org (Ross Ridge) writes:
>rdippold@cancun.qualcomm.com (Ron Dippold) writes:
>>If it is, you can do the following:  when your program first starts, save
>>the current int9 vector.  Wait x seconds.  Replace the new int9 vector with
>>your routine.  When the game quits, the interrupt vector will be changed by
>>the game back to the original int9 vector.  You can see this and shut down
>>your TSR.

>How can you see this?  After the game puts back the original int9 vector
>you routine no long runs and so can't detect the change.

Well, I was assuming that you were still using the timer interrupt
that you used to install it in the first place - then you can look at
that vector 18 times a second to see it has changed.
-- 
He is no lawyer who cannot take two sides.
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Message-ID: <rdippold.713549802@cancun>
Path: arc1-ca.pugleaf.net!sparky!uunet!sun-barr!cs.utexas.edu!zaphod.mps.ohio-state.edu!sdd.hp.com!swrinde!network.ucsd.edu!qualcom.qualcomm.com!cancun!rdippold
References: <14081@mindlink.bc.ca> <rdippold.713230172@cancun> <1992Aug11.083504.7128@zooid.guild.org>

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From: rdippold@cancun.qualcomm.com (Ron Dippold)
Newsgroups: alt.msdos.programmer
Subject: Re: HELP! My TSR won't activate in many games!
Message-ID: <rdippold.713549802@cancun>
Date: 11 Aug 92 16:16:42 GMT
References: <14081@mindlink.bc.ca> <rdippold.713230172@cancun> <1992Aug11.083504.7128@zooid.guild.org>
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