The function:

	WORD my_function_name (BYTE a, WORD b);

Declaring a pointer to a function:

	WORD (*p_function)(BYTE a, WORD b);

Loading it:

	p_function = &my_function_name;

Calling it:

	btemp = my_function_name(1, 2);

or

	btemp = (*my_function_name)(1, 2);

If your function returns a pointer of some sort then thts fine, just add the extra asterix:

	WORD *my_function_name (BYTE a, WORD b);
	WORD *(*p_function)(BYTE a, WORD b);
	p_word = my_function_name(1, 2);