From:	Groman <groman AT thehelm DOT com>
Newsgroups:	alt.os.development,alt.os.assembly,comp.lang.asm.x86,comp.os.msdos.djgpp,alt.lang.asm
Subject:	ISR with DJGPP in a kernel.
Date:	Sat, 08 Jan 2000 07:51:37 GMT
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To:	djgpp AT delorie DOT com
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Reply-To:	djgpp AT delorie DOT com

I am writing a small kernel using DJGPP and NASM, and I bumped into several
problems(again).

Ok...here are my steps.

1) I create the IDT and load the register.
2) I reprogram the PIC to shift the IRQs so they do not overlap with the
exceptions.
3) I disable all IRQs beside 2 and 0.
Now I want to create a handler for 0(the timer) in C...
now, how exactly do I do that... I mean it jumps out of the code right in
the middle of the function...and starts another one?

that doesn't sound right...

shoud I do the handler in assembly that calls C functions then? or is there
a way to turn an ordinary DJGPP function
into a handler...

ok...thank you for your help in advance...

groman.
 

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