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Fix #46

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Emmanuel Marty 2020-05-06 19:36:39 +02:00 committed by GitHub
parent c173a5130f
commit 07104538b7
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2 changed files with 2 additions and 2 deletions
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2
BlockFormat_LZSA2.md
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@ -44,7 +44,7 @@ The match offset is decoded according to the XYZ bits in the token
XYZ
00Z 5-bit offset: read a nibble for offset bits 1-4 and use the inverted bit Z of the token as bit 0 of the offset. set bits 5-15 of the offset to 1.
01Z 9-bit offset: read a byte for offset bits 0-7 and use the inverted bit Z for bit 8 of the offset. set bits 9-15 of the offset to 1.
10Z 13-bit offset: read a nibble for offset bits 9-12 and use the inverted bit Z for bit 8 of the offset, then read a byte for offset bits 0-7. set bits 13-15 of the offset to 1.
10Z 13-bit offset: read a nibble for offset bits 9-12 and use the inverted bit Z for bit 8 of the offset, then read a byte for offset bits 0-7. set bits 13-15 of the offset to 1. substract 512 from the offset to get the final value.
110 16-bit offset: read a byte for offset bits 8-15, then another byte for offset bits 0-7.
111 repeat offset: reuse the offset value of the previous match command.

2
StreamFormat.md
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@ -17,7 +17,7 @@ The 3-bytes LZSA header contains a signature and a traits byte:
Trait bits:
* V: 3 bit code that indicates which block data encoding is used. 0 is LZSA1 and 2 is LZSA2.
* V: 3 bit code that indicates which block data encoding is used. 0 is LZSA1 and 1 is LZSA2.
* Z: these bits in the traits are set to 0 for LZSA1 and LZSA2.
# Frame format