11. The join command was a unique form of subroutine call . 12. Function Pointers are typically implemented with indirect subroutine calls . 13. Many of these subroutines, in turn, also consist of nothing but lower level subroutine calls . 14. A subroutine call or method invocation will not exit until the invoked computation has terminated. 15. A subroutine call not only branches but saves the preceding contents of the PC somewhere. 16. Programming features included a real-time clock, programmable timers and subroutine calls with parameter passing and recursion. 17. GAL implements comparison by IF statements, setting of variables, by the LET statement and subroutine calls . 18. The fifth line makes a subroutine call within the same routine, to a subroutine called'subproc '. 19. It is particularly important to recognize the compiler idioms for subroutine calls , exception handling, and switch statements. 20. The other difference between the MIPS design and the competing Berkeley RISC involved the handling of subroutine calls .
