touble with a time calculation

[longpole001]

steve was wodering what the code may be if i was to use the el1 values plus event1 setting to the overrun point , and use say event 2 seting to show the amount time left before overrun , eg EL0 is counting up , copied to EL1 for display , Event 1 setts time for the overrun , Event2 sets time to show time before reching the overrun time , EL3 displays the time counting down to reach time set by Event1 time.

[EarlyBird2]

Probably easy to do. Post some code from the relevant section for me to look at.