From: Prashant TR <tr AT midpec DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: Inline assembly code problem
Date: 17 Jun 2000 22:05:49 +0530
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

"Alvin Lau" <alvin_lau AT yahoo DOT com> writes:

> When I run the following code, my computer will halt and sometimes will
> reboot automatically:
> 
> int main(void)
> {
>   unsigned factor=4;
>   unsigned short rate=1193180/(18*factor);
>   // speed up timer
>   asm (
>     "cli\n"
>     "movb $36h,%%al\n"
>     "outb %%al,$43h\n"
>     "movw %0,%%ax\n"
>     "outb %%al,$40h\n"
>     "movb %%ah,%%al\n"
>     "outb %%al,$40h\n"
>     "sti\n"
>     :
>     :"m"(rate)
>   );
> }
> 

I don't see anything wrong here. Perhaps another portion of the code
in your program is causing the problem. And also, if you're using
Allegro or some other program which hooks interrupts, this _maybe_ be
the reason.

Prashant