Esteemed PIC Gurus: Does anyone have a favorite way to do a window comparison on an A/D result? Seems to me there was one here a week ago, but it has eluded me. What I want to do is to insert code in an existing loop that will set an alarm output pin if the A/D result falls outside the window; set another pin high if it is below the hard-coded lower limit, set a different pin if it is above the upper limit, and continue on without setting any of the three if the result is within the window. TIA, Reg Neale