Hercules Elf Bot - May 26, 2011 17:36
Originally posted by [b]Ind[/b]
http://www.eathena.ws/board/index.php?autocom=bugtracker&showbug=4935
It saves data on mapregs, making you either have to recall it whenever you want to use its vars instead of once per npc instance -- otherwise if you have 2 more npc instances or even different npcs relying on it you'll get mixed data and exploits will be (currently are) possible.
Also it is not performance-friendly compared to using pc regs (@) or even the npc instance's stack (.@), which also would make it exploit-safe.