Complex sentence: This includes results which are not stored as most processors have a compare instruction which behave as a subtract where the result is discarded; it is also common that processors have a bitwise and-instruction that does not store the result.
Split into simpler sentences: This includes results which are not stored as most traditional instruction sets implement the compare instruction as a subtract where the result is discarded. It is also common that processors have a bitwise AND-instruction that does not store the result.