PC Instruction [25-0] Add Read address Instruction [31-0] Instruction memory 26 Shift left 2 Instruction [31-26] Instruc

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Pc Instruction 25 0 Add Read Address Instruction 31 0 Instruction Memory 26 Shift Left 2 Instruction 31 26 Instruc 1 (72.62 KiB) Viewed 106 times

2. The remaining problems in this exercise assume that datamemory is all zeros andthat the processor’s registers have the following values at thebeginning of the cyclein which the above instruction word is fetched:
1) For each Mux, show the values of its data output during theexecution of this instruction and these register values.
2) For the ALU and the two add units, what are their data inputvalues?
3) What are the values of all inputs for the “Registers”unit?
PC Instruction [25-0] Add Read address Instruction [31-0] Instruction memory 26 Shift left 2 Instruction [31-26] Instruction [25-21] Instruction [20-16] 0 M Instruction [15-11] X Instruction [15-0] Jump address [31-0] PC +4 [31-28] Control 28 RegDst Jump Branch MemRead MemtoReg ALUOP MemWrite ALUSrc RegWrite Read register 1 Read register 2 Write register 16 Read data 1 Read data 2 Write data Registers Sign- extend Instruction [5-0] 32 Shift left 2 0 ALU Add, result Zero ALU ALU result ALU control Addre MUX Read data Write Data data memory MUX M u