Int 2C Fn 002B  P - Rm386 V6.00 - Cloaking - Protected-mode Virtual Dma S  [m]

   AX = 002Bh
   CH = 81h
   CL = subfunction (02h-0Ch)
   other registers as appropriate for subfunction

Return: varies by function
   CF set on error

Note:  these functions are equivalent to the INT 4B/AX=81xxh subfunctions
     with the same numbers

See Also: INT 4B/AX=8102h,INT 4B/AX=810Ch