I recently got a piece of code which does the following: it combines a few integers via bitshift to one integer. Thats nothing really troublesome. but then it takes this integer and sends it out into the linkset like this: bitwise_integer & 0x7F8 now whats the 0x7F8 for? i know it has some purpose. and i know the person who initially wrote the code also reverts it back. but how? many thanks in advance