(Passing argument using registers and using a for-loop) Write a subroutine to

compare two equal sized character strings. The number of characters in the string is in

register B. The starting address of one string is in register X. The starting address of the

other string is in register Y. If the strings are equal, the subroutine returns a $22 in

register B. Otherwise, the subroutine returns a $33 in register B.