Like (the 24-bit-only form of a call), is used as , where the linkage address and mode are saved in register 14, and a branch is taken to the subroutine address and mode specified in register 15. Somewhat similarly to (the 24-bit-only form of an unconditional return), is used as , where 0 indicates that the current mode is not saved (the program is leaving the subroutine, anyway), and a return to the caller at the address and mode specified in register 14 is to be taken.See , for extensive examples of the use of BAS, BASR, BASSM and BSM, in particular, pp. 29–30.
