The following tables are used by data management when performing default character conversion as described in Character Data Conversion. They are also used by the system when you issue the XLATE macro instruction.

When converting EBCDIC code to ASCII code, all EBCDIC code not having an ASCII equivalent is converted to X'1A'. When converting ASCII code to EBCDIC code, all ASCII code not having an EBCDIC equivalent is converted to X'3F'. Because Version 3 ASCII uses only 7 bits in each byte, bit 0 is always set to 0 during EBCDIC to ASCII conversion and is expected to be 0 during ASCII to EBCDIC conversion.