Category: <b>network</b>
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<pre><b>INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - OPEN SEMAPHORE</b>

	AX = C500h
	DS:DX -&gt; semaphore name (counted string, max 127 bytes)
	CL = initial value for semaphore
Return: AL = status
	    00h successful
		BL = number of processes having semaphore open
		CX:DX = semaphore handle
	    03h name length greater than 127
		(refer to Novell document FYI.A.4611)
	    FEh invalid name length
	    FFh invalid semaphore value
Notes:	this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and
	  Alloy NTNX
	the semaphore's value is incremented by AX=C503h and decremented by
	  AX=C502h
SeeAlso: AX=C501h,AX=C502h,AX=C503h,AX=C504h,AX=F220h/SF=00h
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