$5.$ Write an assembly language macro $($called TOTAL$)$ according to these specifications:

a$.$ Accepts a pointer to an array of signed words in any arbitrary low register, $($i$.$e$.,$ specified as a parameter$)$;

b$.$ Accepts an unsigned word value that indicates the number of array elements in another arbitrary low register, $($i$.$e$.,$ specified as a parameter$)$;

c$.$ Returns the sum, $($i$.$e$.,$ total$),$ of array elements in an arbitrary low register, $($i$.$e$.,$ specified as a parameter$)$; and,

d$.$ Except for the obvious need to modify the register used to return the result, leaves all registers $($other than the program status register$)$ unchanged after the execution of the expanded macro is complete.