Questions tagged [cache]

Cache is a type of memory used by the central processing unit (CPU) of a computer to reduce the average time to access data from the main memory. The cache is a smaller, faster memory which stores copies of the data from frequently used main memory locations.

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Number of bits for tag, index, and block in a direct-mapped cache

Suppose you have a 64-byte cache on a system with 16-bit memory addresses. If the cache is direct-mapped and it has 10 bytes of tag overhead in total, how many bits are used for the tag, index, and ...
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What determines the number of bits for the address field in a cache memory?

I understand a cache memory is constructed for a basic block like this Valid bit | Address bits | Data/Instruction But what determines the length of the address bits? I understand that for a 32-bit ...