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JEF codepage

From EverybodyWiki Bios & Wiki

JEF is a stateful EBCDIC charset used in Fujitsu mainframe systems called FACOM and some OASYS series personal word processors. JEF is an acronym for "Japanese processing Extended Feature". It was introduced by Fujitsu in April 1979, but the implementation predates JIS C 6226-1978.

Encoding structure[edit]

Here are the valid ranges of bytes according to its encoding structure.

Byte Range Purpose Byte Range in Hexadecimal Comment
single byte 41-F9 Includes graphic characters. Does not include unassigned characters nor ISO control characters.
shift to single byte mode 29
shift to double byte mode 28
first byte of double byte 40, 41-7D, 7F-FE A1-FE are JIS C 6226-1978 characters. 41-7D, 7F are extended characters. 80-A0 are user defined characters.
Byte 40 is only valid when followed by byte 40.
second byte of double byte 40, A1-FE 40 is only valid when preceded by byte 40. 0x40 0x40 makes the ideographic space character.

References[edit]

  • Lunde, Ken. CJKV Information Processing. Sebastopol, Calif.: O'Reilly & Associates, 1998. ISBN 1-56592-224-7 Search this book on Amazon.com Logo.png..

External links[edit]



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