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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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