INT 15 - MultiDOS Plus - REQUEST RESOURCE SEMAPHORE BY NAME
AH = 1Bh
DS:SI -> 8-byte name
Return: AH = status
00h successful
02h invalid semaphore number
03h caller already owns semaphore
04h out of string space
Notes:  (see AH=01h"MultiDOS")
equivalent to AH=1Ah followed by AH=01h
SeeAlso: AH=1Ah"MultiDOS",AH=1Ch"MultiDOS",AH=1Dh"MultiDOS"

See also: 1501

151B - MultiDOS Plus - REQUEST RESOURCE SEMAPHORE BY NAME