C=A+B-1
  LOC  OBJECT CODE    ADDR1 ADDR2  STMT   SOURCE STATEMENT
000000                                2 P1       START
000000 05C0                           3          BALR  12,0
                            00002     4          USING *,12
                                      5 * YOUR PROGRAM GOES HERE
000002 5810 C012            00014     6          L     1,A
000006 5A10 C016            00018     7          A     1,B     R1
NOW = A+B
00000A 5A10 C01E            00020     8          A     1,FM1
00000E 5010 C01A            0001C     9          ST    1,C
                                     10 *  END OF YOUR PROGRAM
000012 07FE                          11          BR    14
000014 00000003                      12 A        DC    F'3'
000018 00000004                      13 B        DC    F'4'
00001C                               14 C        DS    F
000020 FFFFFFFF                      15 FM1      DC    F'-1'
                                     16          END