sceCesRefersUcsProfileCp1252 returns the CP1252 profile, and
sceCesSbcToUtf8 / sceCesUtf8ToSbc convert one character in each
direction. The five bytes CP1252 leaves undefined map to the matching
C1 controls, so every byte round-trips. Malformed UTF-8 and code points
outside CP1252 return the library's error codes.
Co-Authored-By: Claude <noreply@anthropic.com>