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CSCE 212 Quiz 10 – 4/6/11

CSCE 212 Quiz 10 – 4/6/11. lw $4, 4($8) subi $8, $4, 1 beq $8, $9, Exit Show the pipeline for the given instructions and tell how many cycles it would take to finish (assume no forwarding). What does it mean for a cache to be direct mapped? What is the purpose of tags for a cache?

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CSCE 212 Quiz 10 – 4/6/11

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  1. CSCE 212 Quiz 10 – 4/6/11 lw $4, 4($8) subi $8, $4, 1 beq $8, $9, Exit • Show the pipeline for the given instructions and tell how many cycles it would take to finish (assume no forwarding). • What does it mean for a cache to be direct mapped? • What is the purpose of tags for a cache? EC: How many cycles with forwarding from ALU to ALU.

  2. CSCE 212 Quiz 10 Answers 1.

  3. CSCE 212 Quiz 10 Answers • What does it mean for a cache to be direct mapped? • There is only one place where a given block can be placed within the cache.

  4. CSCE 212 Quiz 10 Answers • What is the purpose of tags for a cache? • Used to identify if the information in the cache is the information that has been requested.

  5. CSCE 212 Quiz 10 Answers EC.

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