Int 10 Fn 1112  - Video - Realtek Rtvga - Set ROM 8x8 Double-dot Characte  [V]

   AX = 1112h
   BL = row specifier (see AX=1121h)

Note:  this function is meant to be called immediately after a mode set;
     results are unpredictable at other times

See Also: AX=110Fh,AX=1110h,AX=1111h,AX=1123h