The instruction says to unconditionally branch to the address contained in general register 14. Because register 14 always contains a program's return address, the program ends as soon as it begins.
Notes Be sure to enclose the new data set name in parenthesis.
To rename a member of a PDS, specify the member name in parenthesis after the PDS name. A DD statement is required to reference the disk volume containing the data set to be renamed. The older IBM utilities have rigid control statement formats. To continue a statement, you must code a trailing comma, type something in column 72, and continue the statement in column 16. Maintaining source statement libraries is a big job in the typical mainframe environment.