Int 60  u - Hp 95lx System Manager - "m_lock" - Prevent Task Switches      [b]

   DI = 0602h
   STACK:  2 WORDs unused dummies (for calls from high level languages)

Return: ???
   STACK unchanged

See Also: INT 15/AX=101Bh,INT 2F/AX=1681h,INT 60/DI=0603h