The Shift-JIS codec provides conversion to and from Shift-JIS, an encoding of JIS X 0201 Latin, JIS X 0201 Kana and JIS X 0208.
The environment variable
UNICODEMAP_JP can be used to fine-tune the codec. The ISO 2022-JP (JIS) Text Codec documentation describes how to use this variable.
Most of the code here was written by Serika Kurusugawa, a.k.a. Junji Takagi, and is included in Qt with the author's permission and the grateful thanks of the Qt team. Here is the copyright statement for the code as it was at the point of contribution. The subsequent modifications are covered by the usual copyright for Qt.
See also Text Codec: Shift-JIS.