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3 cards from this section. Quick, good the night before a test.
What is a cache hit?
Think about where the data is being accessed.
Define what a cache miss is.
What happens when data is not found in the cache?
What is the purpose of the tag in a cache?
Consider what distinguishes different entries in the cache.
A cache hit occurs when data is...
Reflect on the definition of a cache hit.
Given a cache system with 256 lines and a block size of 8 words, calculate how many bits are necessary for the index and tag if the main memory supports 32-bit addressing.
Use the formula for bits required.
A processor accesses addresses 500, 512, and 528 in a direct-mapped cache consisting of 32 bytes with 4-byte blocks. Determine how many cache misses will occur.
Evaluate the binary addresses and determine their cache mappings.
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