16F946 Instant Interrupts problem

[Bruce]

If pulses stop while it's in the CountRevs interrupt service routine, interrupts are disabled,
and you'll be waiting forever in this routine until pulses start up again.

[jderson]

Thank you, Bruce. How do I fix it so it exits from the routine?

[Bruce]

How do I fix it so it exits from the routine?

You'll need to get rid of the WHILE WEND loops waiting for state changes on RB0.