X1 Assembly (1958) Hello World.out

                  dp zz 0 x 5

                  da 0 zz 0   di
	      0   2b 1       a		       set address increment to 1
	 3->  1   2a 4 zz 0  c p	       load next character to A
	      2   6y 2 xp    		       print it
	      3 y 2t 1 zz 0  a		       loop if not last char
	      4   7p   	  		       and halt
	      5 dn + 19			       lower case
	      6	  + 28			       h
	      7	  + 25			       e
	      8	  + 32			       l
	      9	  + 32			       l
	     10	  + 35			       o
	     11	  + 15			       comma
	     12	  + 20			       space
	     13   + 43			       w
	     14	  + 35			       o
	     15	  + 38			       r
	     16	  + 32			       l
	     17	  + 24			       d
	     18	  - 52			       clrf, negative = last char

                  de 0 zz 0