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Consider a pipelined processor operating at 2 GHZ with 5 stages, Instruction fetch (IF), Instruction decode (ID), Execute (EX), Memory access (MEM), and write back (WB). Each stage of the pipeline, except the EX stage, takes one cycle. The EX takes one cycle for ADD and SUB, three cycles for MUL, two cycles for DIV Instruction.
Consider the following instructions:

Find, the number of true data dependences in the above code and the execution time using operand forwarding technique respectively is______.
  • a)
    2, 5.5 ns
  • b)
    5, 5.0 ns
  • c)
    3, 4.2 ns
  • d)
    2, 3.0 ns
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Consider a pipelined processor operating at 2 GHZ with 5 stages, Instr...

∴ 2 true dependencies are there.
∴ f = 2GHz


Total cycles require = 11
∴ Execution time = 11 × 0.5 = 5.5 ns.
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Most Upvoted Answer
Consider a pipelined processor operating at 2 GHZ with 5 stages, Instr...

∴ 2 true dependencies are there.
∴ f = 2GHz


Total cycles require = 11
∴ Execution time = 11 × 0.5 = 5.5 ns.
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Consider a pipelined processor operating at 2 GHZ with 5 stages, Instruction fetch (IF), Instruction decode (ID), Execute (EX), Memory access (MEM), and write back (WB). Each stage of the pipeline, except the EX stage, takes one cycle. The EX takes one cycle for ADD and SUB, three cycles for MUL, two cycles for DIV Instruction.Consider the following instructions:Find, the number of true data dependences in the above code and the execution time using operand forwarding technique respectively is______.a)2, 5.5 nsb)5, 5.0 nsc)3, 4.2 nsd)2, 3.0 nsCorrect answer is option 'A'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Consider a pipelined processor operating at 2 GHZ with 5 stages, Instruction fetch (IF), Instruction decode (ID), Execute (EX), Memory access (MEM), and write back (WB). Each stage of the pipeline, except the EX stage, takes one cycle. The EX takes one cycle for ADD and SUB, three cycles for MUL, two cycles for DIV Instruction.Consider the following instructions:Find, the number of true data dependences in the above code and the execution time using operand forwarding technique respectively is______.a)2, 5.5 nsb)5, 5.0 nsc)3, 4.2 nsd)2, 3.0 nsCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider a pipelined processor operating at 2 GHZ with 5 stages, Instruction fetch (IF), Instruction decode (ID), Execute (EX), Memory access (MEM), and write back (WB). Each stage of the pipeline, except the EX stage, takes one cycle. The EX takes one cycle for ADD and SUB, three cycles for MUL, two cycles for DIV Instruction.Consider the following instructions:Find, the number of true data dependences in the above code and the execution time using operand forwarding technique respectively is______.a)2, 5.5 nsb)5, 5.0 nsc)3, 4.2 nsd)2, 3.0 nsCorrect answer is option 'A'. Can you explain this answer?.
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