Int 1F  - System Data - 8x8 Graphics Font                                  [B]

Desc:  this vector points at 1024 bytes of graphics data, 8 bytes for each
     character 80h-FFh

Note:  graphics data for characters 00h-7Fh stored at F000h:FA6Eh in 100%
     compatible BIOSes

See Also: INT 10/AX=5000h,INT 43