Memory address $0$x$05$ contains the byte, $0$x$10$ and memory address $0$x$06$ contains the byte, $0$xF$5.($Assume PC starts from address $0$x$05$ and if you are not sure about the values for the opcode or value$/$addr bus, put don't cares or $"$XX$".$ Give the values of the control lines for the previous falling clock edge. The values on the buses are after the rising clock edge.$)$

a$.[2$ points$]$ What does this instruction do according to the instruction set provided in the previous question?

b$.[2$ points$]$ How many clock cycles in total are needed for the microprocessor to fetch and execute this instruction?

c$.[16$ points$]$ Detail the fetch and execute process for the instruction located at $0$x$05.$ Find out the data stored in each register and the state of each control line in every clock cycle and place the values in the table below $($copy and paste the table into your answer block $-$ not all rows need necessarily be filled in$).$

CLK rising edge PC Opcode Value$/$Addr LOAD$\_$IRU LOAD$\_$IRL LOAD$\_$PC INCR$\_$PC

$1$st

$2$nd

$3$rd

$4$th

$5$th

$6$th