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Tags and valid bits

How to know which memory block is stored in which cache block?

  • Store block data and block address
  • Only need high-order bits: tag

What if no data in a cache block?

  • Valid bit: 1 = present, 0 = not present
  • Initially 0
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pdf

owner: pavestonelaboringuntitled - (no access) - 05 Cache.pdf, p17


Summary

statusnot read reprioritisations
last reprioritisation on suggested re-reading day
started reading on finished reading on

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