Home Explore Help
Sign In
cpp
/
love2d.megasource
mirror of https://github.com/love2d/megasource
2
0
Fork 0
Files Issues 0 Wiki
Tree: 11.0
Branches Tags
love2d.megasour...
/
libs
/
mpg123-1.25.6
/
doc
Alex Szpakowski 355023bb2f Update mpg123 to 1.25.6 8 years ago
..
examples 355023bb2f Update mpg123 to 1.25.6 8 years ago
ACCURACY 355023bb2f Update mpg123 to 1.25.6 8 years ago
BENCHMARKING 355023bb2f Update mpg123 to 1.25.6 8 years ago
BUGS 355023bb2f Update mpg123 to 1.25.6 8 years ago
CONTACT 355023bb2f Update mpg123 to 1.25.6 8 years ago
LARGEFILE 355023bb2f Update mpg123 to 1.25.6 8 years ago
LICENSE 355023bb2f Update mpg123 to 1.25.6 8 years ago
Makemodule.am 355023bb2f Update mpg123 to 1.25.6 8 years ago
PATENTS 355023bb2f Update mpg123 to 1.25.6 8 years ago
README.3DNOW 355023bb2f Update mpg123 to 1.25.6 8 years ago
README.gain 355023bb2f Update mpg123 to 1.25.6 8 years ago
README.remote 355023bb2f Update mpg123 to 1.25.6 8 years ago
ROAD_TO_LGPL 355023bb2f Update mpg123 to 1.25.6 8 years ago
THANKS 355023bb2f Update mpg123 to 1.25.6 8 years ago
TODO 355023bb2f Update mpg123 to 1.25.6 8 years ago
doxy_examples.c 355023bb2f Update mpg123 to 1.25.6 8 years ago
doxyfoot.xhtml 355023bb2f Update mpg123 to 1.25.6 8 years ago
doxygen.conf 355023bb2f Update mpg123 to 1.25.6 8 years ago
doxyhead.xhtml 355023bb2f Update mpg123 to 1.25.6 8 years ago
libmpg123_speed.txt 355023bb2f Update mpg123 to 1.25.6 8 years ago

README.3DNOW

************************************************************************
* 3DNow! support by KIMURA Takuhiro *
* *
* (http://hannah.ipc.miyakyo-u.ac.jp/kim/) *
* Syuuhei Kashiyama *
* (http://user.ecc.u-tokyo.ac.jp/~g810370/)*
************************************************************************

-----------------------------
What's new in patch for 0.59r
-----------------------------
- 3DNow! optimized decode routine (decode_3dnow.s,dct36_3dnow.s ;
these code based Syuuhei Kashiyama's 3DNow! patch for mpg123-0.59o)
- 3DNow! optimized equalizer (equalizer_3dnow.s ; do_equalizer() only)
- target "linux-3dnow-alsa" "linux-3dnow-esd" added (untested)
- automatic detect 3DNow! support CPU from CPUFLAGS (getcpuflags.s)
(i.e. use floating-pointer decode routine if your CPU isn't support
3DNow! or MMX instructions)

-------------
Added options
-------------
"--test-3dnow" : display result of autodetect and exit
"--force-3dnow" : force use of 3DNow! optimized decoder
(it will cause SIGILL if your CPU isn't support 3DNow! or MMX
instructions)
"--no-3dnow" : force use of floating-pointer decoder

-----------
How to make
-----------
[1] To make 3DNow! optimized mpg123,you need binutils-2.9.1.0.15 or later.
You can find the most recent binutils (2.9.1.0.25 until 23.Jun.1999) at
- kernel.org (and mirrors) : /pub/linux/devel/gcc/
- http://hannah.ipc.miyakyo-u.ac.jp/kim/Linux/binutils/
(Takuhiro's local copy)
etc.
[2] Type "make linux-3dnow" (OSS)
or "make linux-3dnow-alsa" (ALSA).
[3] Enjoy!

------------------
Precompiled binary
------------------
You can get precompiled binary of mpg123 (with 3DNow! support) from
http://hannah.ipc.miyakyo-u.ac.jp/kim/Linux/mpg123/

----------
References
----------
Useful sources of information on optimizing 3DNow! code include:
- AMD 3DNow! Technology Manual (Publication #21928)
English: http://www.amd.com/K6/k6docs/pdf/21928d.pdf
(Japanese: http://www.amd.com/japan/K6/k6docs/j21928c.pdf)
- AMD-K6-2 Processor Code Optimization Application Note (Publication #21924)
English: http://www.amd.com/K6/k6docs/pdf/21924b.pdf