Extra attacks for fighter-class characters fighting monsters of less than one hit die (AKA sweep attacks)¹⁾ are an attack routine. Sweep attacks are available any time an attack routine is permitted, including charging, receiving a charge, and free attacks against fleeing targets. Fighters get full sweep attacks every attack routine, meaning an 8th level fighter with 2 attack routines could get a total of 16 sweep attacks in a round.