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Signed-off-by: Slendi <slendi@socopon.com>
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Slendi
2025-09-08 17:52:24 +03:00
parent ea8d23b105
commit 4dd65bdc66
2 changed files with 2 additions and 2 deletions
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docs/specification.pdf
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docs/specification.typ
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@@ -117,8 +117,8 @@ compressed independently using LZSS with the following parameters:
Streams are encoded as a sequence of 8‑item groups preceded by a flag byte: Streams are encoded as a sequence of 8‑item groups preceded by a flag byte:
- For each bit b (0..7) in the flag (LSB first): - For each bit b (0..7) in the flag (LSB first):
- If `(flag >> b) & 1 == 1`: Literal — copy next byte to output. - If `(flag >> b) & 1 == 1`: Literal - copy next byte to output.
- Else: Match — read two bytes b0, b1 and emit: - Else: Match - read two bytes b0, b1 and emit:
- `length = (b0 >> 4) + 3` (range 3..18) - `length = (b0 >> 4) + 3` (range 3..18)
- `offset = ((b0 & 0x0F) << 8) | b1` (range 1..4095) - `offset = ((b0 & 0x0F) << 8) | b1` (range 1..4095)
- Copy length bytes from `out_size - offset`. - Copy length bytes from `out_size - offset`.