#addv1.sim1  Add contents of 004 and 005, store in 006
000  1004     Load the accumulator with the word at 004
001  3005     Add to the accumulator the word at 005
002  2006     Store the accumulator in address 006
003  0000     Halt
004  0020     Address 004 initialized to 20
005  0030     Address 005 initialized to 30
006  0000     Address 006 initialized to 0
000           Execution begins at address 000