(c) The Intel-8085 Register Structure is shown in Figure Q4(c). Flag register (8) Accumulator, A (8) SZ AC P CY E B (8) D (8) H (8) Stack Pointer (SP) Program Counter (PC) (8) (8) (8) (16) L (16) Data bus Address Bus 16 Lines Lines Figure Q4(e): Intel-8085 Register Structure With the help of an example, explain why the program counter and the stack pointer are different size compared to other register. [4 marks] (11) Explain the indication each flag register bit for 10000001. (5 marks]