INT 17 - AX (Japanese AT) PRINTER - Shift-JIS to JIS CONVERSION
        AH = 52h
        DX = 2-byte shift-JIS code
Return: DX = JIS code or 0000h on error
Note:   one of AH=51h and AH=52h converts from JIS (Japanese Industry Standard)
          characters to Shift-JIS characters, and the other performs the
          opposite conversion