emmanuel-marty
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9e75a55dd3
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Reduce token count by 1% without changing the ratio
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2019-04-25 13:01:56 +02:00 |
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emmanuel-marty
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b7967c3aa1
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Update README
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2019-04-24 10:02:35 +02:00 |
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emmanuel-marty
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2b9780bd65
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Finalize lzsa1 compressed format, speed up and simplify decompression
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2019-04-24 09:47:40 +02:00 |
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emmanuel-marty
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593110ae5d
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Fix parsing of -m option
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2019-04-22 14:16:25 +02:00 |
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emmanuel-marty
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331d6f9911
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Add --prefer-ratio, --prefer-speed, -m options
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2019-04-21 09:41:12 +02:00 |
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emmanuel-marty
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f837ed096e
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Add size-optimized Z80 decompressor, contributed by spke
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2019-04-21 08:15:43 +02:00 |
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emmanuel-marty
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6c4a86c9fe
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Make compression 5% faster
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2019-04-20 16:24:54 +02:00 |
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emmanuel-marty
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fb79d319cb
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Speed up portable decompressor a bit
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2019-04-20 10:27:24 +02:00 |
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emmanuel-marty
|
3e5639afaf
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Reduce token count further
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2019-04-20 10:26:45 +02:00 |
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emmanuel-marty
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88054841cf
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Add strict block checks when decompressing, comparing
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2019-04-20 10:26:13 +02:00 |
|
Emmanuel Marty
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b3268b74eb
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Update stats
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2019-04-13 12:38:18 +02:00 |
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emmanuel-marty
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aa5dbe283d
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Small optimization to the cost model
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2019-04-13 12:33:39 +02:00 |
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emmanuel-marty
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4913fe5d48
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Fix reporting of compressed size for raw mode
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2019-04-13 12:33:25 +02:00 |
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emmanuel-marty
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cf51f1775a
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Fix small literals cost estimate issue in optimizer, gain a small amount of compression and reduction of token count
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2019-04-11 23:47:57 +02:00 |
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emmanuel-marty
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4c5d44fff4
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Improve hotpath of 6502 depacker further
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2019-04-10 19:41:41 +02:00 |
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emmanuel-marty
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2451d5802e
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Fix typo in lzsa tool
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2019-04-10 17:38:22 +02:00 |
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emmanuel-marty
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8c3fc6d652
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Simplify short offset handling in 6502 depacker
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2019-04-10 17:37:36 +02:00 |
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emmanuel-marty
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c220694531
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Add 6502 decompressor
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2019-04-10 17:30:24 +02:00 |
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emmanuel-marty
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02592cfe3b
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Fix typo in 8088 decompressor comments
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2019-04-10 17:30:13 +02:00 |
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emmanuel-marty
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953f2934a1
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Merge branch 'master' of https://github.com/emmanuel-marty/lzsa
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2019-04-08 09:44:19 +02:00 |
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emmanuel-marty
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9649073131
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Speed up compression
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2019-04-08 09:44:07 +02:00 |
|
Emmanuel Marty
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061d24e49e
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Update stats with results for compressor v0.5.0
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2019-04-08 08:52:59 +02:00 |
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emmanuel-marty
|
837b6895cf
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Further reduce the number of tokens for even better decompression speed; increase compression slightly
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2019-04-07 15:10:53 +02:00 |
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emmanuel-marty
|
9c35d5115b
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When verbose, display uncompressed bytes/token ratio
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2019-04-07 15:10:17 +02:00 |
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emmanuel-marty
|
be54a4f889
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Check in optimized-for-speed Z80 decompressor contributed by spke
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2019-04-07 00:01:42 +02:00 |
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emmanuel-marty
|
6aa2dae4b3
|
Add context to libdivsufsort, don't allocate memory during compression
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2019-04-07 00:01:22 +02:00 |
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emmanuel-marty
|
e24320b23b
|
Save 1 byte in 8088 decompressor
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2019-04-06 00:21:15 +02:00 |
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emmanuel-marty
|
1353573af1
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Small cleanup for end-of-data handling in decompression, check commands
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2019-04-06 00:02:11 +02:00 |
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emmanuel-marty
|
a785010448
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Revert token to O|LLL|MMMM; revert to always shifting the match offset by 1; set raw block end marker as a large zero-size match
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2019-04-05 23:16:05 +02:00 |
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emmanuel-marty
|
06e6a14871
|
Add optimization pass to reduce the number of command tokens in the compressed data blocks without changing the compression ratio
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2019-04-05 16:32:11 +02:00 |
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emmanuel-marty
|
f05359b63d
|
Don't write an unnecessary footer byte when emitting a raw block
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2019-04-05 12:13:51 +02:00 |
|
emmanuel-marty
|
1ef1ad8111
|
Reorganize token byte for faster decoding on 8-bit CPUs, without affecting the compression ratio
|
2019-04-05 11:58:44 +02:00 |
|
Emmanuel Marty
|
33b62c004a
|
Update format description
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2019-04-05 10:46:24 +02:00 |
|
emmanuel-marty
|
c7692cf688
|
Store 16-bit lengths and match offsets directly, to simplify decompression on 8-bit CPUs without affecting the compression ratio
|
2019-04-05 10:42:06 +02:00 |
|
emmanuel-marty
|
bdc4e85948
|
Fix typos in format description
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2019-04-05 09:28:28 +02:00 |
|
emmanuel-marty
|
c86d38ba63
|
Reduce the number of literals required at the end of a compressed block
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2019-04-05 09:28:16 +02:00 |
|
Emmanuel Marty
|
bfaa3790d0
|
Update corpus compression stats for v0.2.0
|
2019-04-03 13:19:41 +02:00 |
|
emmanuel-marty
|
4f26bb086c
|
Add LICENSE
|
2019-04-03 13:06:46 +02:00 |
|
emmanuel-marty
|
0744ec99de
|
Unpack raw blocks in 8088 decompressor
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2019-04-03 13:05:32 +02:00 |
|
emmanuel-marty
|
18fc4da994
|
Implement raw block mode
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2019-04-03 13:05:10 +02:00 |
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emmanuel-marty
|
11d1ff8cd7
|
Use 3-byte file header
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2019-04-03 11:26:36 +02:00 |
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emmanuel-marty
|
1f04705845
|
Fix degenerate case; use full 32 bits for suffix array intervals; make EOD parsable by a decompressor as a long 0 match offset as well; use more aggressive compression settings.
|
2019-04-03 10:16:12 +02:00 |
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emmanuel-marty
|
fcfdbe9745
|
Add autodocs to internal compressor functions
|
2019-04-02 15:03:21 +02:00 |
|
emmanuel-marty
|
fa1ef05a31
|
Merge branch 'master' of https://github.com/emmanuel-marty/lzsa
|
2019-04-02 13:21:55 +02:00 |
|
emmanuel-marty
|
06396f5ba6
|
Save 2 bytes in 8088 decompressor
|
2019-04-02 13:21:45 +02:00 |
|
Emmanuel Marty
|
663e154429
|
Add compression ratio stats for well-known corpus files
|
2019-04-02 12:49:54 +02:00 |
|
emmanuel-marty
|
8b992bb33a
|
Add autodocs to public functions in compressor and decompressor
|
2019-04-02 12:12:12 +02:00 |
|
Emmanuel Marty
|
cd7517fb65
|
Fix typo in match offsets note
|
2019-04-01 21:02:08 +02:00 |
|
Emmanuel Marty
|
fde853e095
|
Clarify the encoding of matches, fix some broken formatting.
|
2019-04-01 21:00:07 +02:00 |
|
marty-emmanuel
|
e216b0c544
|
Initial checkin
|
2019-04-01 18:04:56 +02:00 |
|