PETSCII

PETSCII /pet'skee/ n.  [abbreviation of PET ASCII] The
   variation (many would say perversion) of the {{ASCII}} character
   set used by the Commodore Business Machines PET series of personal
   computers and the later Commodore C64, C16, and C128 machines.  The
   PETSCII set used left-arrow and up-arrow (as in old-style ASCII)
   instead of underscore and caret, placed the unshifted alphabet at
   positions 65--90, put the shifted alphabet at positions 193--218,
   and added graphics characters.