Int 10 Fn 5000  - Video - Ax Pc - Set Screen Country Code                  [J]

   AX = 5000h
   BX = country code
       0001h USA (English), 0051h Japan

Return: AL = status
       00h successful
       01h bad country code
       02h other error

See Also: AX=5001h,INT 16/AX=5000h