                        .code 0
   0 L 5 1 11             mv r1 #11
                        :loop
   1 D 20 2 1 20          le r2 r1 #20
   2 L 9 2 7              jf r2 exit
   3 X 31 30 1 0 15       mv r30 r1
   4 X 31 1 0 0 19        trap 1      ;; print r30 to screen
   5 D 10 1 1 1           add r1 r1 #1
   6 L 6 0 1              jmp loop
                        :exit
   7 X 31 0 0 0 19        trap 0
                        .end
