Int 62 Fn 0090  u - Fgdriver V4.02 - "fg_pointx" - Display A Pixel In Xor  [V]

   AX = 0090h
   BX = column
   CX = row

Notes: the FGDRIVER functions are rearranged with each major release, but
     their parameters do not change (see #3145 at AX=0000h)
   This call is ignored in text modes

See Also: AX=004Dh,AX=008Fh