3.8 Design Example: Data Compressor
Our design example for this chapter is a data compressor that takes in data with a constant number of bits per data element and puts out a compressed data stream in which the data is encoded in variable-length symbols. Because this chapter concentrates on CPUs, we focus on the data compression routine itself.
3.8.1 Requirements and Algorithm
We use the Huffman coding technique, which is introduced in Application Example 3.4. We require some understanding of how our compression code fits into a larger system. Figure 3.20 shows a collaboration diagram for the data compression process. The data compressor takes in a sequence of input symbols and then produces a stream of output symbols. Assume for simplicity ...
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