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Int 15 Fn 101B - Topview - "beginc" - Begin Critical Region [Q]
AX = 101Bh
Return: task-switching temporarily disabled
Notes: will not task-switch until "ENDC" (AX = 101Ch) called unless task
voluntarily releases the CPU (upon regaining the CPU, task-switching
will again be disabled)
suspends the caller until DOS is free
See Also: AH=0Dh"MultiDOS",AX=101Ch,AX=DE13h,AX=DE1Ch,INT 2F/AX=1681h
See Also: INT 60/DI=0602h
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