INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - SIGNAL SEMAPHORE
AX = C503h
CX:DX = semaphore handle
Return: AL = status
00h successful
01h semaphore value overflowed
FFh invalid handle
Desc:   increment the semaphore's value and signal the first process (if any)
in the queue waiting on the semaphore
Note:   this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
Alloy NTNX
SeeAlso: AX=C502h

See also: 21C500

21C503 - Novell NetWare - SYNCHRONIZATION SERVICES - SIGNAL SEMAPHORE