INT 21 - Novell NetWare - SYNCHRONIZATION SERVICES - EXAMINE SEMAPHORE AX = C501h CX:DX = semaphore handle Return: AL = status 00h successful CX = semaphore value (-127 to 127) DL = count of processes which have the semaphore open FFh invalid handle Note: this function is supported by NetWare 4.6+, Advanced NetWare 1.0+, and Alloy NTNX SeeAlso: AX=C500h"NetWare",AX=C502h,AX=C504h,AX=F220h/SF=01h