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GATE 2020
Computer OrganizationCPU Architecture and Addressing ModesmediumMCQ1 mark
Consider the following data path diagram. Consider an instruction: R0 <- R1 + R2. The following steps are used to execute it over the given data path. Assume that PC is incremented appropriately. The subscripts r and w indicate read and write operations, respectively. 1. R2_r, TEMP1_r, ALUadd, TEMP2_w 2. R1_r, TEMP1_w 3. PC_r, MAR_w, MEM_r 4. TEMP2_r, R0_w 5. MDR_r, IR_w Which one of the following is the correct order of execution of the above steps?
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