INT 67 - PC-NET, Alloy NTNX - LOCK SEMAPHORE                                    
	AH = 01h
	DS:DX -> ASCIZA NUL-terminated ASCII string.	The ASCIZ string "ABC" consists of the four bytes 41h, 42h, 43h, and 00h.  Unless otherwise specified, maximum lengths given in the interrupt list do not include the terminating NUL. 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"