Int 16 Fn 5000  - Keyboard - Ax Pc - Set Keyboard 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

Notes: the K3PLUS v6.00+ INT 16 BIOS replacement will switch between the
     supported country specific layout (e.g. BX=0031h Germany, BX=001Fh
     Netherlands, BX=0020h Belgium, BX=0022h Spain) (as with <Ctrl>+
     <Alt>+<F2>) and K3PLUS' transparent mode (as with <Ctrl>+<Alt>+<F1>).
   In transparent mode (BX=0001h), K3PLUS chains to the underlying
     driver (normally the BIOS driver with US-layout). K3PLUS beeps on
     mode changes

See Also: AX=5001h,AX=AF4Dh,INT 10/AX=5000h,INT 17/AX=5000h