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. Matt 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, > -karthi > > ===== > 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 > http://uk.messenger.yahoo.com/download/index.html -- Matthew Dharm Work: mdharm@momenco.com Senior Software Designer, Momentum Computer