There's quite a lot of retro modern LZ activity too! LZ turns out to be amazing on old machines, often only a couple times slower than a block copy. Optimal compressors and control over the algorithm have led to some very tight demos.
https://github.com/emmanuel-marty/lzsa - LZSA - a LZ4-like modern LZ that's more efficient both in speed and compression to LZ4 (at least on the 8 bitters it targets) - includes a neat chart of speed/compression trade-offs on a ZX Spectrum with a variety of algorithms
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There's quite a lot of retro modern LZ activity too! LZ turns out to be amazing on old machines, often only a couple times slower than a block copy. Optimal compressors and control over the algorithm have led to some very tight demos.
https://www.brutaldeluxe.fr/products/crossdevtools/lz4/index... LZ4 Data Compression - a rather long and in-depth article looking at LZ4 on the 65816 for the Apple IIgs with a decompressor that exploits that processor's block copy.
https://github.com/emmanuel-marty/lzsa - LZSA - a LZ4-like modern LZ that's more efficient both in speed and compression to LZ4 (at least on the 8 bitters it targets) - includes a neat chart of speed/compression trade-offs on a ZX Spectrum with a variety of algorithms