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41f244bd2f
A profiler run showed that the main bottleneck was the naive decoding of the Huffman codes, replacing it with a nice trick borrowed by Zlib gave a substantial speedup. Replacing a `%` with a `and (mask-1)` gave another significant improvement (yay for low hanging fruits). A few numbers obtained by decompressing a 22M file: Before: ``` ./decompress 2,39s user 0,00s system 99% cpu 2,400 total ``` After: ``` ./decompress 0,79s user 0,00s system 99% cpu 0,798 total ````