Code page ASMO449+

ASMO 449+ is a character set used to write Arabic

The codepage is also called Al Arabi.

Codepage layout

This character set should not be confused with ASMO 708 (ISO 8859-6):

  1. ASMO 449 was created in 1985 by ASMO;
    ASMO 708 was created in 1986 by the same organization;
  2. ASMO 449 was registered in the International Register of Coded Character Sets as IR 089;
    ASMO 708 was registered as IR 127;
  3. ASMO 449 is the 7-bit standard; some encodings, however, allocate this 7-bit character set in the upper part of the 8-bit character set;
    ISO 8859-6 is an 8-bit standard which was taken from the 8-bit standard ASMO 708;
  4. ASMO 449 contains all the basic characters for Arabic and some characters from ISO/IEC 646: the Latin letters, the Latin digits and some Latin punctuation are replaced by Arabic ones;
    ASMO 708 keeps the first code points as the ASCII;
  5. ASMO 449 in not bidirectional; that's why the symmetrical punctuation marks ("(", ")", "<", ">", "[", "]", "{" and "}") appears as reversed (")", "(", ">", "<", "]", "[", "}" and "{");
    ASMO 708 (and subsequently ISO 8859-6) are bidirectional; that's why the Latin digits and the Arabic digits share the same code points, whether the shaping as Latin digits or Arabic digits is given by the directionality of the text;
  6. The 8-bit code page with ASMO 449 allocated to the upper part is also known as code page 768 (not an official IBM number);
    ASMO 708 / ISO 8859-6 is also known as code page 1089 (on IBM AIX Systems);

Both character sets are used as the basis for other character sets.

ASMO 449:

ASMO 708:

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