On Mon, 7 May 2001, Ruud Baltissen wrote: > Hallo allemaal, > > Maybe a strange, even weird question but would a 1 or 2 MHz interrupt be > possible on a fast PC? > QNX, a 'real time' OS for PCs "boasts" a 6 microsecond response time to interrupts. a 1mhz interrupt needs a MINIMUM 1 microsecond response time, PLUS time to do the work, and prepare for the next interrupt. > I have done some interrupt programming my self but not for these high > speeds. So I never questioned how much cycles a PC will need at minimum. If > somebody knows, please tell me. I'm not aware of how many cycles, but I know that the instruction cache needs to be dumped and reloaded, state saved and reloaded, etc. > The above is not off-topic. I need this info for a little project Nick and I > are discussing. When the time is ripe, we'll inform you about it. Not even a hint? - This message was sent through the cbm-hackers mailing list. To unsubscribe: echo unsubscribe | mail cbm-hackers-request@dot.tml.hut.fi.
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