X-Hacker.org- Ralf Brown's Interrupt List (Part 1,2) - int 21 - dos 3+

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INT 21 - DOS 3+ - SET COUNTRY CODE
        AH = 38h
        AL = 01h thru 0FEh for specific country with code <255
        AL = FFh for specific country with code >= 255
           BX = 16-bit country code
        DX = FFFFh
Return: CF set on error
            AX = error code (see AH=59h)
        CF clear if successful
SeeAlso: INT 2F/AX=1403h

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