You will need to do further research on your own. If your high level compiler allows you to see an assembly language representation of its output, you should be able to figure out the details on your own. Each processor has its own conventions on subroutine and function linkage. Each high level language also has its own conventions regarding subroutine and function linkage. Some operating systems add their own conventions to the mix.
C treats all subroutines as functions.
C arrays are passed by pointer. The calling routine is responsible for removal of parameters. Pascal has both subroutines and functions. For subroutines, there is no space allocated on the stack for a return value, while for functions the space for the return value is allocated on the stack after all of the parameters are passed. VARs are passed as four byte pointers.