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Author	SHA1	Message	Date
Emmanuel Marty	8e4e7c06c7	Fix calculation for promoting literal+match seqs	2019-11-19 19:48:39 +01:00
Emmanuel Marty	b1738b4003	Promote some literal+match sequences to a match	2019-11-18 12:10:23 +01:00
Emmanuel Marty	e328f63feb	Bump version	2019-11-13 00:57:31 +01:00
Emmanuel Marty	e0c42afac9	Increase LZSA2 ratio	2019-11-13 00:57:09 +01:00
Emmanuel Marty	ce7fc33646	Reduce memory use	2019-11-12 00:30:24 +01:00
Emmanuel Marty	53b2013b73	Small improvement to merging large matches	2019-11-11 18:41:08 +01:00
Emmanuel Marty	df9690a949	Merge pull request #36 from peterferrie/master ... fast v1	2019-11-09 17:55:19 +01:00
Peter Ferrie	302234a91b	fast v2	2019-10-31 23:01:00 -07:00
Peter Ferrie	9fc9a49d67	fast v1	2019-10-31 22:20:02 -07:00
Emmanuel Marty	7371486513	Bump version	2019-10-29 12:10:13 +01:00
Emmanuel Marty	f249597dfd	Increase LZSA2 ratio	2019-10-29 12:09:14 +01:00
Emmanuel Marty	78f588a833	Clarify defines	2019-10-29 10:45:57 +01:00
Emmanuel Marty	c790fb8ebe	Add link to Gabba ZX Spectrum demo, that uses LZSA	2019-10-28 09:21:57 +01:00
Emmanuel Marty	3c4f535e0b	Increase LZSA2 ratio by ~0.02%	2019-10-27 14:55:39 +01:00
Emmanuel Marty	8551c3ff8a	Merge pull request #35 from MobyGamer/decompressor/8086_speed_jumptable ... Rewrite 8088 jumptable decompressor for maximum speed	2019-10-27 10:28:48 +01:00
mobygamer	30192238ea	Rewrite 8088 jumptable decompressor for maximum speed ... This is a rewrite of LZSA1JMP.ASM to use a 256-element jumptable, which allows the code to handle all of the hot paths (common cases) without any branching. This not only reduces branches (which are very costly on x86) to a bare minimum, but also grants us foreknowledge in a decode path of what steps can be skipped. The new code is 12.7% faster than the old code, and assembles to less than 3K of object code and data.	2019-10-26 23:34:24 -05:00
Emmanuel Marty	53fcd3b1a8	Generalize merging very large matches	2019-10-24 13:05:32 +02:00
Emmanuel Marty	f4cf97f176	Merge pull request #34 from specke/master ... Added option for unrolled copying of long matches	2019-10-22 21:52:48 +02:00
introspec	d5d788946e	Added an option for unrolling long match copying ... Usually useless and costing +57 bytes, this option can bring dramatic performance improvements on very compressible data dominated by long matches	2019-10-22 20:11:46 +01:00
introspec	e1e1276c96	Merge pull request #4 from emmanuel-marty/master ... Re-sync with the main	2019-10-22 20:09:00 +01:00
Emmanuel Marty	16ac8c75af	Add link to PDP-11 depackers by Ivan Gorodetsky	2019-10-22 17:13:05 +02:00
Emmanuel Marty	05d77095ca	Bump version	2019-10-22 12:39:27 +02:00
Emmanuel Marty	b84fe7c332	Further increase LZSA2 ratio by ~0.1% on average	2019-10-22 12:37:46 +02:00
Emmanuel Marty	7dd039a152	Delete shrink_context.h	2019-10-22 12:37:16 +02:00
Emmanuel Marty	9f6ca2c25f	Delete shrink_block_v2.c	2019-10-22 12:37:04 +02:00
Emmanuel Marty	dbaa3fa921	Further increase LZSA2 ratio by ~0.1% on average	2019-10-22 12:36:41 +02:00
Emmanuel Marty	2926ad8436	Remove unused #includes	2019-10-21 12:29:38 +02:00
Emmanuel Marty	d9156d3d2b	Reduce LZSA1 token count by 2.5% on average	2019-10-19 13:10:41 +02:00
Emmanuel Marty	6adf92fc88	Merge pull request #33 from specke/master ... -1 byte	2019-10-11 10:18:05 +02:00
Emmanuel Marty	96df02c532	Remove unused code	2019-10-11 09:20:36 +02:00
Emmanuel Marty	89f1664ae6	Remove unused code	2019-10-11 09:14:19 +02:00
Emmanuel Marty	c363ecf527	Remove unused code	2019-10-11 09:11:49 +02:00
Emmanuel Marty	5141ed7c59	Remove unused code	2019-10-11 09:11:41 +02:00
Emmanuel Marty	c77c666568	Remove unused code	2019-10-11 09:10:07 +02:00
Emmanuel Marty	115a81cb71	Remove unused code	2019-10-11 09:09:42 +02:00
Emmanuel Marty	4436f216ce	Bump version	2019-10-11 09:06:50 +02:00
Emmanuel Marty	baa53f6889	Newly compressed LZSA2 files depack 0.7% faster	2019-10-11 09:05:58 +02:00
introspec	495a12216f	-1 byte ... Very slightly faster too	2019-10-11 00:23:43 +01:00
Emmanuel Marty	b5117c3dfe	Fixes for -stats	2019-10-11 00:25:46 +02:00
Emmanuel Marty	f5ef6bf868	Merge pull request #32 from specke/master ... Slightly faster unlzsa2_fast.asm for Z80	2019-10-11 00:22:12 +02:00
introspec	566e3a94e8	+0.2% speed ... also, added an option to unroll LDIR for longer matches (which adds 38 bytes, but can be significantly faster for files with many long matches)	2019-10-10 22:50:23 +01:00
introspec	e3d7ec9c40	Merge pull request #3 from emmanuel-marty/master ... Sync with E.Marty's branch	2019-10-10 22:46:53 +01:00
Emmanuel Marty	d209b73a30	Fix small bug	2019-10-10 14:42:08 +02:00
Emmanuel Marty	c1b18fb9fd	Implement -stats	2019-10-09 18:20:22 +02:00
Emmanuel Marty	6ce846ff24	Speed up LZSA2 compression	2019-10-09 16:07:29 +02:00
Emmanuel Marty	b09dadb1c1	Small LZSA2 token count reduction	2019-10-09 13:16:29 +02:00
Emmanuel Marty	03f841d04f	Speed up LZSA2 compression	2019-10-08 20:26:21 +02:00
Emmanuel Marty	44df8f3d2d	Add early-out, speed LZSA2 compression up further	2019-10-08 16:23:33 +02:00
Emmanuel Marty	bfb383befd	Speed up LZSA2 compression	2019-10-08 09:39:18 +02:00
Emmanuel Marty	39e2a90f81	Prevent small matchfinder inefficiency	2019-10-04 11:54:54 +02:00