As with any timer interrupt, if you mask it too long you'll lose time.
Generally, masking interrupts via the IE bit is a bad idea.
On Thu, Jan 22, 2004 at 07:24:07AM +0000, karthikeyan natarajan wrote:
> Hi All,
> In R4000 & descendent processors, interrupt number 7
> is being used for internal timer interrupt. From this
> i understand that the timer interrupt is also maskable
> when the IE bit in status register is cleared. If
> somebody mask this interrupt for a long time
> erroneously, then won't there be a problem in
> maintaining the system time?
> Please correct me if i am wrong..
> Does the system time is maintained via NMI?
> Thanks in advance,
> The expert at anything was once a beginner
> / \
> O / Karthikeyan.N \
> O | Chennai, India. |
> `\|||/' \ Mobile: +919884104346 /
> (o o) \ /
> _ ooO (_) Ooo____________________________________
> Yahoo! Messenger - Communicate instantly..."Ping"
> your friends today! Download Messenger Now
Matthew Dharm Work: email@example.com
Senior Software Designer, Momentum Computer