Re: What's wrong with this little TSR?

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#700

From: Pedt Scragg
Date: Fri, 21 Aug 1998 00:00

31 lines
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In article <35ded96b.41078299@news.rz.uni-karlsruhe.de>, Andreas Maurer
<alphamike@t-online.de> writes
>
>The TSR itself works ok, but I'm unable to start another program after
>I've loaded the TSR - anything else crashes the computer immediately.
>I'm sure it's a memory problem, but I don't find it...   ;)
>
>
>procedure CountTime; interrupt;
>begin
>     inc(x);
>     if x >= 20 then
>        begin
>             InPort := PortW[$370];
>             x := 0;
>             if InPort = 72 then Beep;
>        end;
>     Timer;
>     asm
>       pushf 
>     end;
>end;
>

IIRC, if you are calling the previous interrupt handler, you need to
push the flags *before* you call the previous handler.
 
-- 
Pedt Scragg    

Not able to test code tonight as I'm on a laptop in darkest Cumbria

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From: Pedt Scragg <newsmaster@pedt.demon.co.uk>
Subject: Re: What's wrong with this little TSR?
Date: 1998/08/21
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