5. Answer the following a. Specify a pipeline configuration to carry out the following task: $(A_i + B_i \* C_i) + (D_i \* E_i)$ List the contents of all registers. b. Draw a space-time diagram for a 7-segment pipeline showing the time it takes to process 10 tasks. c. Number of clock cycles to process 350 tasks in a four-segment pipeline.
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To carry out the task (Ai + Bi * Ci) + (Di * Ei), we can use the following pipeline configuration: Show more…
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In a 4-stage pipeline, IF - instruction fetches ID - instruction decode and fetch operands EX - Execute WB - write back ADD, SUB take one clock cycle, MUL take three clock cycles. Then for $\mathrm{ADD} \quad R_{2}, R_{1}, R_{0} R_{2} \leftarrow R_{1}+R_{0}$ MUL $R_{4}, R_{3}, R_{2} R_{4} \leftarrow R_{3} * R_{2}$ SUB $R_{6}, R_{5}, R_{4} R_{6} \leftarrow R_{5}-R_{4}$ Number of clock cycles required using operand forwarding technique are (A) 8 (B) 12 (C) 10 (D) 14
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