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| author | Aki <please@ignore.pl> | 2024-03-02 22:57:02 +0100 |
|---|---|---|
| committer | Aki <please@ignore.pl> | 2024-03-03 00:59:45 +0100 |
| commit | ca18c5b1b5004ffa88b6b3b85cd038d1217c09c6 (patch) | |
| tree | 1ba5a8734c96f892322cd65af7cf33041ba4cb68 /contrib/zlib/contrib/asm686/README.686 | |
| parent | e70158ea57302e2fa2d588b67fc8dc18265192eb (diff) | |
| download | starshatter-ca18c5b1b5004ffa88b6b3b85cd038d1217c09c6.zip starshatter-ca18c5b1b5004ffa88b6b3b85cd038d1217c09c6.tar.gz starshatter-ca18c5b1b5004ffa88b6b3b85cd038d1217c09c6.tar.bz2 | |
zlib sources removed from this tree
This, for whatever reason, breaks std::fs exception handling.
All remaining external projects will be moved to use this approach soon.
This is to prepare it for more new libraries which would otherwise make
the tree grow even further.
Diffstat (limited to 'contrib/zlib/contrib/asm686/README.686')
| -rw-r--r-- | contrib/zlib/contrib/asm686/README.686 | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/contrib/zlib/contrib/asm686/README.686 b/contrib/zlib/contrib/asm686/README.686 deleted file mode 100644 index a0bf3be..0000000 --- a/contrib/zlib/contrib/asm686/README.686 +++ /dev/null @@ -1,51 +0,0 @@ -This is a patched version of zlib, modified to use -Pentium-Pro-optimized assembly code in the deflation algorithm. The -files changed/added by this patch are: - -README.686 -match.S - -The speedup that this patch provides varies, depending on whether the -compiler used to build the original version of zlib falls afoul of the -PPro's speed traps. My own tests show a speedup of around 10-20% at -the default compression level, and 20-30% using -9, against a version -compiled using gcc 2.7.2.3. Your mileage may vary. - -Note that this code has been tailored for the PPro/PII in particular, -and will not perform particuarly well on a Pentium. - -If you are using an assembler other than GNU as, you will have to -translate match.S to use your assembler's syntax. (Have fun.) - -Brian Raiter -breadbox@muppetlabs.com -April, 1998 - - -Added for zlib 1.1.3: - -The patches come from -http://www.muppetlabs.com/~breadbox/software/assembly.html - -To compile zlib with this asm file, copy match.S to the zlib directory -then do: - -CFLAGS="-O3 -DASMV" ./configure -make OBJA=match.o - - -Update: - -I've been ignoring these assembly routines for years, believing that -gcc's generated code had caught up with it sometime around gcc 2.95 -and the major rearchitecting of the Pentium 4. However, I recently -learned that, despite what I believed, this code still has some life -in it. On the Pentium 4 and AMD64 chips, it continues to run about 8% -faster than the code produced by gcc 4.1. - -In acknowledgement of its continuing usefulness, I've altered the -license to match that of the rest of zlib. Share and Enjoy! - -Brian Raiter -breadbox@muppetlabs.com -April, 2007 |