Int 2F Fn D004  - Mdebug Display Driver - Show Saved Data                  [G]

   AX = D004h

Return: CF set on error
   CF clear if successful
       display switched to mode it was in before calling AX=D002h and the
         display memory is restored

Note:  This function needn't save the display memory before changing it.

See Also: AX=D000h,AX=D005h