COMPUTER ARCHITECTURE
MEMORY SYSTEMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Direct mapping
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Associative mapping
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Set associative mapping
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None of the above
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Detailed explanation-1: -The easiest technique used for mapping is known as direct mapping. The direct mapping maps every block of the main memory into only a single possible cache line.
Detailed explanation-2: -Direct mapping is a cache mapping technique that allows to map a block of main memory to only one particular cache line.
Detailed explanation-3: -Direct mapping:-Direct mapping is the very simplest technique because in which every block of primary memory is mapped into the single possible cache line. In Direct mapping, every memory block is allotted for a particular line in the cache memory.
Detailed explanation-4: -The simplest cache mapping scheme is direct mapped cache. In a direct mapped cache consisting of N blocks of cache, block X of main memory maps to cache block Y = X mod N. Thus, if we have 10 blocks of cache, block 7 of cache may hold blocks 7, 17, 27, 37, . . . of main memory.