This question is about a $64$ bit RISC CPU which has a call $($or callq$)$ instruction which works exactly the same way as these instructions in Y$86-64($or Intel X$86-64)($REMINDER: In a RISC CPU, all instructions are the same length, that is$,$ the same number of bytes$).$ Suppose an assembly language program with the following instruction:

call function$4$

The address of this call instruction is $0$x$8000,$ and the address of the function$4$ label is $0$x$9000.$ Also, the length of the call instruction is $8$ bytes $(8$ in hexadecimal also$).$

A$.$What return address will be pushed onto the stack when the call instruction above is executed? You should give the numeric value of the address in hexadecimal.

ANSWER:

B$.$What address will be in the PC immediately after this call function$4$

instruction is executed $($that is$,$ before the next instruction begins execution$)?$

ANSWER: