OSDev.org

Posted: **Mon Jul 19, 2010 8:13 am**

I followed James Molloys tutorial to this point: http://www.jamesmolloy.co.uk/tutorial_h ... 20PIT.html.
Now I am stuck with the PIT. If i issue

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__asm__ __volatile__("int $0x20");

in the kernel, the system prints

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Tick: <nr>

as it is supposed to be, but I should get constant output of the tick value.
Is Bochs PIT broken or am I doing something wrong?

Thanks in advance
duke.devon

Posted: **Mon Jul 19, 2010 8:29 am**

Maybe you missed to enable the interrupts.

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asm volatile ("sti");

Posted: **Mon Jul 19, 2010 8:30 am**

Bochs' PIT is definitely not broken

Posted: **Mon Jul 19, 2010 8:41 am**

cyr1x wrote:Maybe you missed to enable the interrupts.
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asm volatile ("sti");

Shame on me...
That fixed the problem.

I feel kinda dumb after that

OSDev.org

Bochs PIT broken? [solved]

Bochs PIT broken? [solved]

Re: Bochs PIT broken?

Re: Bochs PIT broken?

Re: Bochs PIT broken?