Suppose you want to make a nested function call (i.e. a call to a function from inside of another function) using a jal rather than a call for performance reasons. How would the push and pop pseudo-ops be proprely ordered along with the jal so that the previous return address isn't lost?

		pop $ra jal nested_function_label nop push $ra
		push $ra jal nested_function_label nop pop $ra
		push $ra pop $ra jal nested_function_label nop
		jal nested_function_label nop pop $ra push $ra