Yesterday i've broken down an interesting bug:

Takt CON 40
Prescaler CON 2
UPM VAR WORD
T8 VAR WORD

UPM=((Takt/Prescaler)*25000/8)/T8

is working wrong, because "(Takt/Prescaler)*25000" is bigger than 16 Bit - but there is no overflow-error !

using
UPM=((Takt/Prescaler)*(25000/8))/T8
works !

PBP 2.44