In a direct?mapped cache memory system, what is the meaning of the terms
a. word?
b. line?
c. set?
a. word
The word is the same as the computer word (i.e., the basic unit of memory access). A line is composed of several
adjacent words.
b. line
A line is the fundamental unit of data in a cache and consists of several words (typically 64 bytes or 32 words in a
16?bit computer or 16 words in a 32?bit computer). Data is transferred between memory and cache as lines and
between cache and processor as words.
c. set.
In a direct?mapped cache, the main memory is divided into sets, and each set is the same size as the cache. A line
in the cache can come from any of the sets in the main memory.
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