Int 10 Fn 4B  - Video - Hercules Grafix - "text" - Display Character       [V]

   AH = 4Bh
   AL = character to display
   DI = x (0-719)
   BP = y (0-347)

Return: nothing

Notes: unlike the other BIOS character functions character position is
     specified in pixels rather than rows and columns
   the character is writting using the drawing function last specified by
     AH=44h

See Also: AH=09h,AH=0Ah