Exercise 7.3 Modify the single-cycle ARM processor to implement one of the following instructions. See Appendix B for a definition of the instructions. Mark up a copy of Figure 7.13 to indicate the changes to the datapath. Name any new control signals. Mark up a copy of Tables 7.2 and 7.3 to show the changes to the Main Decoder and ALU Decoder. Describe any other changes that are required. (a) TST (b) LSL (c) CMN (d) ADC Exercise 7.4 Repeat Exercise 7.3 for the following ARM instructions. (a) EOR (b) LSR (c) TEQ (d) RSB