Int 21/AX=C502h

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Novell NetWare - SYNCHRONIZATION SERVICES - WAIT ON SEMAPHORE

AX = C502h
CX:DX = semaphore handle
BP = timeout limit in timer ticks (1/18 sec)
0000h return immediately if semaphore already zero or negative

Return:
AL = status 00h successful FEh timeout FFh invalid handle

Desc: Decrement the semaphore's value, optionally waiting until its value becomes positive before decrementing

Note: This function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and Alloy NTNX

See Also: AX=C500h"NetWare" - AX=C501h - AX=C503h - AX=F220h/SF=02h

Category: Netware - Int 21h - N

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