In what order do iterative attacks resolve? Right after the character who has initiative has resolved his first attack (attack with highest BAB), or do the other characters and npc's resolve their first attack before the iterative attacks?
Example: Ser Fisty McBeef-Punch is a 6th level fighter and has a BAB of +6/+1. He is currently fighting 2 Gnolls, also with a BAB of +6/+1. By some twist of fates Ser Fisty rolls highest on initiative and proceeds to carve a gash in Gnoll#1's stomach with his +6 bab attack. Does Ser Fisty then get his +1 attack before the Gnolls get their +6 attack, or do the Gnolls strike back first and so on?