mp3lib/dct36_k7.c

   1 /*
   2  * dct36_k7.c - 3DNowEx(DSP)! optimized dct36()
   3  *
   4  * This code based 'dct36_3dnow.s' by Syuuhei Kashiyama
   5  * <squash@mb.kcom.ne.jp>, only two types of changes have been made:
   6  *
   7  * - added new opcode PSWAPD
   8  * - removed PREFETCH instruction for speedup
   9  * - changed function name for support 3DNowEx! automatic detection
  10  *
  11  * note: because K7 processors are an aggresive out-of-order three-way
  12  *       superscalar ones instruction order is not significand for them.
  13  *
  14  * You can find Kashiyama's original 3dnow! support patch
  15  * (for mpg123-0.59o) at
  16  * http://user.ecc.u-tokyo.ac.jp/~g810370/linux-simd/ (Japanese).
  17  *
  18  * by KIMURA Takuhiro <kim@hannah.ipc.miyakyo-u.ac.jp> - until 31.Mar.1999
  19  *                    <kim@comtec.co.jp>               - after  1.Apr.1999
  20  *
  21  * Original disclaimer:
  22  *  The author of this program disclaim whole expressed or implied
  23  *  warranties with regard to this program, and in no event shall the
  24  *  author of this program liable to whatever resulted from the use of
  25  *  this program. Use it at your own risk.
  26  *
  27  * Modified by Nick Kurshev <nickols_k@mail.ru>
  28  *
  29  * 2003/06/21: Moved to GCC inline assembly - Alex Beregszaszi
  30  */
  31
  32 #define DCT36_OPTIMIZE_FOR_K7
  33
  34 #include "dct36_3dnow.c"