These are special functions for working with the non-standard Shift-JIS and Big5 encodings.
This function decodes a JIS X 0208 character of Shift-JIS coding-system. code is the character code in Shift-JIS as a cons of type bytes. The corresponding character is returned.
This function encodes a JIS X 0208 character character to SHIFT-JIS coding-system. The corresponding character code in SHIFT-JIS is returned as a cons of two bytes.