Quick question...

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Automatic_Jack
Posts: 4
Joined: Sat Jul 30, 2005 11:00 pm

Quick question...

Post by Automatic_Jack »

On the IA32 the timer interrupt is also disabled after the CLI instruction correct?

Just making sure... I second guess myself into a corner...

Suppose if I wasnt quite as lazy I would code something to test it, o maybe read a manual...
Last edited by Automatic_Jack on Sat Jul 30, 2005 11:00 pm, edited 1 time in total.
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Legend
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Re: Quick question...

Post by Legend »

Every external interrupt (not sure about the NMI) is blocked when you execute CLI.
*post*
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Osbios
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Re: Quick question...

Post by Osbios »

CLI only stops IRQs. NMIs(e.g. div by zero/triplefault) and software ints still working.
And yes, the PIT timer IRQ is stoped.
But i dont know what the CMOS Realtimer is doing after CLI. :?
Last edited by Osbios on Mon Aug 01, 2005 11:00 pm, edited 1 time in total.
dw 0xAA55
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