Int 81 Fn 2010  - Gravis Ultrasound - Mega_em V3.0+ - Int 78 Redirect      [s]

   AX = 2010h
   ???

Return: ???

Note:  MegaEm calls this function from its INT 78 handler, and then
     immediately returns (via RETF in v3.10, thus leaving the flags on
     the stack); this permits it to operate while hooking only one
     interrupt through the memory manager in protected mode

See Also: AX=2011h,AX=2012h