Question: For the datapath from Figure 4.24, draw the logic diagram for the part of the control unit that implements just the first signal. Assume that

For the datapath from Figure 4.24, draw the logic diagram for the part of the control unit that implements just the first signal. Assume that we only need to support LW, SW, BEQ, ADD, and J (jump) instructions.

Different instructions require different control signals to be asserted in the datapath. The remaining problems in this exercise refer to the following two control signals from Figure 4.24: a. b. Control Signal 1 ALUSrc Jump Control Signal 2 Branch RegDst

Figure 4.24 PC 4 Instruction [25-0] Add Read address Instruction [31-0] Instruction memory 26 Shift left 2 Instruction

a. b. Control Signal 1 ALUSrc Jump Control Signal 2 Branch RegDst

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