On Wed, Aug 27, 2025 at 2:29 PM Mateusz Viste via Freedos-user < [email protected]> wrote:
> On 8/27/25 22:56, E. Auer via Freedos-user wrote: > > I assume you enjoy designing algorithms, because there already are nice > > and lightweight existing ones, too :-) > > Did not find any that does not require extra buffers for decompression, > is fast on a 8088 and can be implemented within some 20 lines of C. > Maybe I didn't look hard enough. > If you're willing to look past the Assembly language implementation, Jim Leonard/trixter has a version of LZ4 that does well on 8088 ( http://www.oldskool.org/pc/lz4_8088/). Maybe that could be translated to C at a cost of some performance. Additionally, jart from cosmopolitan libc/APE has a short C implementation (though somewhat awkwardly organized, IMO) of LZ4. https://github.com/jart/cosmopolitan/blob/1.0/libc/str/lz4decode.c https://github.com/jart/cosmopolitan/blob/1.0/libc/str/lz4cpy.c https://github.com/jart/cosmopolitan/blob/1.0/libc/str/lz4check.c https://github.com/jart/cosmopolitan/blob/1.0/libc/nexgen32e/lz4.h https://github.com/jart/cosmopolitan/blob/1.0/libc/nexgen32e/lzcnt.h https://github.com/jart/cosmopolitan/blob/1.0/libc/nexgen32e/lzcnt.S https://github.com/jart/cosmopolitan/blob/1.0/libc/nexgen32e/lzcntl.S
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