Assembler listing from a simple HC12 program using the Cosmic assembler. 

   1       00000800      prog:    equ        $0800
   2       00000900      data:    equ        $0900
   3                     
   4                     CODE:    section    .text
   5  0800                        org        prog
   6  0800 b60900                 ldaa       input
   7  0803 47                     asra
   8  0804 7a0901                 staa       result
   9  0807 3f                     swi
  10                     
  11                     DATA:    section    .data
  12  0900                        org        data
  13  0900 07            input:   dc.b       $07
  14  0901 00            result:  ds.b       1