FG52    #     FSUM     THIS MACRO'SUMS'AN AREA OF AN OBJ PROG USING 127 INSTR   
 FGJL    #MAC  FSUM     [J.S.RAYNER         GEORGE 3 VERSION 
 FH4=     MOD  ADX   %C ADATUM,%A
 FHHW          SMO      %D   
 FJ3G          SUM   %B 0
 FJ9Q ...#NOR