hi i want to know the difference b/w the following instrutions "movq (%1),(%0) \n" "movq %1, %0 \n" basic question is what is bracket doing with the operands. does it have some significance? thanks ankit ________________________________________________________________________ Yahoo! Messenger - Communicate instantly..."Ping" your friends today! Download Messenger Now http://uk.messenger.yahoo.com/download/index.html