The return of control between load modules is the same as return of control between two control sections in the same load module. The program in the load module returning control is responsible for restoring registers 2-14, possibly loading a return code in register 15, passing control using the address in register 14 and possibly setting the correct addressing mode. The program in the load module to which control is returned can expect registers 2-13 to be unchanged, register 14 to contain the return address, and optionally, register 15 to contain a return code. Control can be returned using a branch instruction, a branch and set mode instruction or the RETURN macro. If control was passed without using the control program, control returns directly to the calling program. However, if control was originally passed using the control program, control returns first to the control program, then to the calling program.