Computer Organization Problem - Chapter 4 Processors

Figure 4.2

4.7 In this exercise we examine in detail how an instruction is executed in a single-cycle datapath. Problems in this exercise refer to a clock cycle in which the processor fetches the following instruction word 10101100011000100000000000010100 Assume that data memory is all zeros and that the processor's registers have the following values at the beginning of the cycle in which the above instruction word is fetched ro 12 r4 rg 12 31 10 16 4.71 [5] What are the outputs of the sign-extend and the jump "Shift left 2" unit (near the top of Figure 4.24) for this instruction word? 4.7.2 [10] what are the values of the ALU control units inputs for this instruction? 4.7.3 10 What is the new PC address after this instruction is executed? Highlight the path through which this value is determined. 4.7.4 10 4.4 For each Mux, show the values of its data output during the execution of this instruction and these register values 4.7.5 [101 For the ALU and the two add units, what are their data input values? 4.7.6 [10] What are the values of all inputs for the "Registers" unit? 4.7 In this exercise we examine in detail how an instruction is executed in a single-cycle datapath. Problems in this exercise refer to a clock cycle in which the processor fetches the following instruction word 10101100011000100000000000010100 Assume that data memory is all zeros and that the processor's registers have the following values at the beginning of the cycle in which the above instruction word is fetched ro 12 r4 rg 12 31 10 16 4.71 [5] What are the outputs of the sign-extend and the jump "Shift left 2" unit (near the top of Figure 4.24) for this instruction word? 4.7.2 [10] what are the values of the ALU control units inputs for this instruction? 4.7.3 10 What is the new PC address after this instruction is executed? Highlight the path through which this value is determined. 4.7.4 10 4.4 For each Mux, show the values of its data output during the execution of this instruction and these register values 4.7.5 [101 For the ALU and the two add units, what are their data input values? 4.7.6 [10] What are the values of all inputs for the "Registers" unit