Doug Masten
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214e03555f
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Slight speed improvement in 6809 LZSA depackers
Switch instruction "tfr x,u" to "leau ,x" which is 2 clock cycles faster on M6809. On H6309 both instruction have same clock cycles.
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2020-06-29 00:36:49 -05:00 |
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Doug Masten
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078edef880
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Optimize match offset code in 6809 LZSA2 depacker
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2020-06-27 04:17:05 -05:00 |
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Doug Masten
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03692fca2c
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Update code byte counts for 6809 LZSA depackers
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2020-06-27 02:02:33 -05:00 |
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Doug Masten
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39e11422ec
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Delay clearing high part of literals count until we really have to in 6809 LZSA1 depacker
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2020-06-27 02:02:33 -05:00 |
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Doug Masten
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fde15d3fb0
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Move instruction before branch to save one byte in 6809 LZSA2 depacker
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2020-06-27 02:02:33 -05:00 |
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Doug Masten
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fc8120f0da
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Optimize handling of 9 bits offset in 6809 LZSA2 depacker
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2020-06-27 02:02:33 -05:00 |
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Doug Masten
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c7b3ffc067
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Delay clearing high part of literals count until we really have to in 6809 LZSA2 depacker
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2020-06-27 02:02:33 -05:00 |
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Doug Masten
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137c6201be
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One byte saving for setting reg A to $FF in 6809 LZSA2 depacker
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2020-06-27 02:02:33 -05:00 |
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Doug Masten
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e397428c1f
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Remove trailing whitespaces in 6809 LZSA2 depacker
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2020-06-27 02:02:33 -05:00 |
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Doug Masten
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b8cfbbbc7b
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Optimize handling of token's Z flag bit in 6809 LZSA2 depacker
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2020-06-27 02:02:33 -05:00 |
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Doug Masten
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28ca829924
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delay clearing high part of literals count until we really have to in 6809 LZSA1 depacker
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2020-06-27 02:02:33 -05:00 |
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Doug Masten
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27562f4761
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Restructure code to eliminate one BRA instruction from loop in 6809 LZSA1 depacker
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2020-06-27 02:02:33 -05:00 |
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Doug Masten
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0307d228a0
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Merge pull request #3 from dougmasten/master
Merge pull request
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2020-06-26 17:13:02 -05:00 |
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Doug Masten
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e8b2ebb89f
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Merge pull request #2 from emmanuel-marty/master
Merge pull request
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2020-06-26 17:08:44 -05:00 |
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Doug Masten
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f72133f4cf
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Move instruction before branch to save one byte in 6809 LZSA2 depacker
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2020-06-26 16:48:58 -05:00 |
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Doug Masten
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56ba563794
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One byte saving for setting reg A to $FF in 6809 LZSA2 depacker
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2020-06-26 15:59:24 -05:00 |
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Doug Masten
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c0f09db364
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Delay clearing high part of literals count until we really have to in 6809 LZSA2 depacker
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2020-06-26 15:56:28 -05:00 |
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Doug Masten
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99db30a732
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Optimize handling of 9 bits offset in 6809 LZSA2 depacker
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2020-06-26 15:18:53 -05:00 |
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Doug Masten
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061ca99838
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Optimize handling of token's Z flag bit in 6809 LZSA2 depacker
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2020-06-26 14:52:09 -05:00 |
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Doug Masten
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7b96368469
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Optimize match offset code in 6809 LZSA2 depacker
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2020-06-26 14:42:36 -05:00 |
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Doug Masten
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e9540b2e3d
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Remove unnecessary "ADDB #$18" as register B will always have this value from 6809 LZSA2 depacker
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2020-06-24 00:49:09 -05:00 |
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Emmanuel Marty
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40212975c2
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Bump version
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2020-06-22 10:08:40 +02:00 |
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Emmanuel Marty
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07c3969432
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Compress LZSA2 raw files one byte shorter
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2020-06-22 00:13:14 +02:00 |
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Doug Masten
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6a47ed7f41
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Remove unnecessary "ADDB #$18" as B register will always have this value from 6809 LZSA depacker
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2020-06-21 12:32:54 -05:00 |
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Doug Masten
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06d63de9d7
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Rearrange "CLRA" instruction for slight speed optimization in 6809 LZSA depacker
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2020-06-21 12:16:07 -05:00 |
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Doug Masten
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b5b8ca556a
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Rearrange match offset code to save 2 bytes in 6809 LZSA depacker
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2020-06-21 01:09:15 -05:00 |
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Emmanuel Marty
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f724663ba8
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Update README some more
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2020-06-21 00:04:03 +02:00 |
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Emmanuel Marty
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798c07f6e0
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Update README again
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2020-06-20 23:59:01 +02:00 |
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Emmanuel Marty
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2f79779beb
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Update README
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2020-06-20 23:57:22 +02:00 |
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Emmanuel Marty
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a9b5a7511c
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Merge pull request #47 from dougmasten/dom
Various optimizations to the 6809 LZSA depackers
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2020-06-20 21:24:28 +02:00 |
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Doug Masten
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7f0316b81c
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Update code byte counts for 6809 LZSA depackers
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2020-06-20 12:45:51 -05:00 |
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Doug Masten
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e8edc3242d
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Restructure code to eliminate one BRA instruction in unlzsa1.s 6809 LZSA depacker
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2020-06-20 12:27:31 -05:00 |
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Doug Masten
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1dd65731c4
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Remove unnecessary "ADDB #$12" as B register will always have this value from 6809 LZSA depackers
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2020-06-20 12:27:22 -05:00 |
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Doug Masten
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f233d552ca
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Remove unnecessary "TSTB" instruction from 6809 LZSA depackers
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2020-06-20 12:11:35 -05:00 |
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Doug Masten
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8c99570b06
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Merge pull request #1 from emmanuel-marty/master
Add backward depackers for 6809
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2020-06-20 12:03:30 -05:00 |
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Emmanuel Marty
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ee969968c1
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Add backward depackers for 6809
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2020-06-20 14:41:25 +02:00 |
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Emmanuel Marty
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f920485899
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-3 bytes for 6809 LZSA2 depacker, slightly faster
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2020-06-19 20:08:09 +02:00 |
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Emmanuel Marty
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2cdeda4784
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-2 bytes for 6809 LZSA1 depacker, slightly faster
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2020-06-19 20:07:41 +02:00 |
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Emmanuel Marty
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f198431a71
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-2 bytes for 6809 LZSA2 depacker, speed unchanged
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2020-06-19 18:26:25 +02:00 |
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Emmanuel Marty
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a6a69ebe17
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Mention 6809 decompressors
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2020-06-19 12:55:21 +02:00 |
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Emmanuel Marty
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f80706ff7e
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-5 bytes and faster 6809 LZSA2 depacker
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2020-06-19 12:50:10 +02:00 |
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Emmanuel Marty
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c3b111cea6
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-2 bytes and faster 6809 LZSA1 depacker
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2020-06-19 12:49:46 +02:00 |
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Emmanuel Marty
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e253d3e628
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-1 byte for 6809 LZSA2 depacker
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2020-06-19 08:57:01 +02:00 |
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Emmanuel Marty
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26bf944d9f
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Add 6809 depacker for LZSA2
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2020-06-18 17:48:08 +02:00 |
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Emmanuel Marty
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b88d3465e3
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Compress LZSA2 a tiny bit faster
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2020-06-18 17:47:31 +02:00 |
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Emmanuel Marty
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1d0427ecae
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Make 6809 depacker for LZSA1 smaller/faster
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2020-06-18 17:46:42 +02:00 |
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Emmanuel Marty
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3ce9a2b36e
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Add 6809 depacker for LZSA1
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2020-06-18 13:26:25 +02:00 |
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Emmanuel Marty
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930fe453eb
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Bump version
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2020-05-29 19:03:17 +02:00 |
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Emmanuel Marty
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193f9f467b
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Fix C99-only feature
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2020-05-28 20:00:30 +02:00 |
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Emmanuel Marty
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278fcc0256
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Faster LZSA2 compression
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2020-05-28 18:38:19 +02:00 |
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