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- ************************************************************************
- * 3DNow! support by KIMURA Takuhiro <[email protected]> *
- * <[email protected]> *
- * (http://hannah.ipc.miyakyo-u.ac.jp/kim/) *
- * Syuuhei Kashiyama <[email protected]> *
- * (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
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