I tried to find it in the archives, but haven't found it so far, so my apologies if it is a known topic. When I run the simulator and a TMR0 interrupt occurs, the stopwatch doesn't show a latency as to the first instruction executed after the interrupt. Shouldn't be there at least 2 cycles latency (3.25 according to the datasheet)? This is quite important as for loading the correct timer count in TMR0 for the next timer cycle. Thanks, Peter -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics