From the textbook : ARM edition of computer organization and design chapter 4 4.6 Section 4.4 does not discuss I-type instructions like ADDI or ANDI. 4.6.1 [5] What additional logic blocks, if any, are needed to add I-type instructions to the CPU shown in Figure 4.23? Add any necessary logic blocks to Figure 4.23 and explain their purpose. An I-type instruction are immediate instructions like ADDI and SUBI 4.6.2 [10] List the values of the signals generated by the control unit for ADDI. Explain the reasoning for any dont care control signals.

Read address Instruction Instruction memory Uncondbranch Branch Mem Read Instudion p1-2 Instruction 9-6) struction po-161 magister 1 Read data 2 register data 2 instruction data Registers Instruction B1-01 2 extend Instruction B1-21 eft 2 ALU Address Read Data Read address Instruction Instruction memory Uncondbranch Branch Mem Read Instudion p1-2 Instruction 9-6) struction po-161 magister 1 Read data 2 register data 2 instruction data Registers Instruction B1-01 2 extend Instruction B1-21 eft 2 ALU Address Read Data