INT 67 - PC-NET, Alloy NTNX - LOCK SEMAPHORE AH = 01h DS:DX -> ASCIZ semaphore name (max 64 bytes) Return: AL = status (see #03522) AH = semaphore owner if status=02h SeeAlso: AH=00h,AH=02h"PC-NET",INT 7F/AH=01h"Alloy"