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EarthBound/ASM/Decompression Routine
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This is a sub-page of EarthBound/ASM.
This subroutine takes a section of ROM that is compressed and outputs decompressed data to WRAM.
Subroutine Inputs
- 0E-11 = Compressed data start (long pointer)
- 12-15 = Decompressed output WRAM location (long pointer)
Compression Format
Data is compressed using a hybrid compression scheme common to many HAL Laboratories games of the NES/SNES/GB era.
Libraries/Tools
- exhal/inhal by Devin Acker (Revenant). Decompression and compression tools, generally able to compress data to at least as small of a data size as that found in the EarthBound ROM. As of 2023, used internally by CoilSnake.
- KompreSS by Sukasa. One of the oldest libraries (a .NET DLL), mostly only supporting decompression.
- kirbyLzRle by Griever. Decompression and compression tools, written in Haskell.
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