Int 21/AX=C503h

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

See Also: AX=C500h"NetWare" - AX=C502h - AX=F220h/SF=03h

Category: Netware - Int 21h - N