Course: Computer Architecture.

Please, Solve every problem properly.

1. F) Modify the block diagram for single-cycle datapath so that it can execute the following instruction "mtr". Note that, this instruction saves value from an address [address = offset (20) + base ($s) ] onto a temporary register (\$to). mtr \$to, 20(\$so) Also write down the control unit values for this instruction. [5] b) Modify the block diagram for single-cycle datapath so that it can execute the following instructions "jst". Note that, the job of the given instruction is to save a function address in the PC register and also to save the address of the second next instruction in the \$ $ra register. jst 1024 Also write down the control unit values for these instructions. C) What is the use of the PC register in the given block diagram for single-cycle datapath? What are the possible values of the PC register after executing an I- Type instruction? Explain. [3]