Computer System, Computer Science, Operating Systems.
B. When the CPU is instructed by a load instruction to read a word from address A of main memory, it sends the address A to the cache. If the cache is holding a copy of the word at address A, it sends the word immediately back to the CPU. 每个存储器地址有m个bit， 可形成共2^m个不同地址， 被划分成2^s个cache set，