************************************************************************ * 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