Create data set NEW. NEW will be used to create the key map for the character conversions. Values for the FROM variable are the keyboard characters to be converted. Values for the TO variable are hexadecimal codes from the SAS ICE table. OUTPUT is required to write a separate observation for each character to be mapped.
data new;
   from='@';
   to='b8'x;
   output;
   from='*';
   to='d5'x;
   output;
run;