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2 cards from this section. Quick, good the night before a test.
What is a cache hit?
Think about when the processor retrieves data directly.
What does a cache miss indicate?
Consider what happens when you need to fetch data from main memory.
What occurs during a cache hit?
Remember what happens when the data is already in cache.
True or False: A cache miss requires fetching data from the cache.
Think about the relationship between cache and main memory.
Given a binary address of 110100101, analyze which cache line it would map to in a direct-mapped cache with 8 lines.
Focus on the last three bits for line indexing.
Design a direct-mapped cache for a system with 16 KB memory and 32-bit addresses, identifying how many bits are needed for tag and index.
What is the cache size, and how does it impact the tag and index bit distribution?
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