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     14 function _ fp "Update the comparator";
     15 ;;
     16 MODULE_LICENSE("GPL");
     17 FUNCTION(_) {
     18     float tmp = in1 - in0;
     19
     20     if(out) {
     21         if(tmp < -hyst/2.) {
     22             out = 0;
     23             equal = 0;
     24         } else {
     25             if(tmp > hyst/2.) {
     26                 out = 1;
     27                 equal = 0;
     28             } else equal = 1;
     29         }
     30     }
     31 }
     32