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| author | nickols_k <nickols_k@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2001-05-12 07:12:38 +0000 |
|---|---|---|
| committer | nickols_k <nickols_k@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2001-05-12 07:12:38 +0000 |
| commit | 4a78e265714a6b2baf0d251a82c56d8fa6fe66a1 (patch) | |
| tree | 1aa1aeb166830d150164f39a295379c420b16189 /mp3lib | |
| parent | 15e8f762f851afe862d369dd957e7cc06b4c2b22 (diff) | |
| download | mpv-4a78e265714a6b2baf0d251a82c56d8fa6fe66a1.tar.bz2 mpv-4a78e265714a6b2baf0d251a82c56d8fa6fe66a1.tar.xz | |
slight improvements. k7 vs 3dnow already win 12 prcnts
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@780 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'mp3lib')
| -rw-r--r-- | mp3lib/decode_k7.s | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/mp3lib/decode_k7.s b/mp3lib/decode_k7.s index 4120b8e564..7f3549fc8e 100644 --- a/mp3lib/decode_k7.s +++ b/mp3lib/decode_k7.s @@ -4,7 +4,8 @@ /// This code based 'decode_3dnow.s' by Syuuhei Kashiyama /// <squash@mb.kcom.ne.jp>,only some types of changes have been made: /// -/// - decreased number of opcodes (as it suggested by k7 manual) +/// - Added new opcode PFNACC +/// - decreased number of opcodes (as it was suggested by k7 manual) /// (using memory reference as operand of instructions) /// - change function name for support 3DNowEx! automatic detect /// @@ -45,6 +46,7 @@ bo: .long 1 .text +/* int synth_1to1(real *bandPtr,int channel,unsigned char *out) */ .globl synth_1to1_3dnowex synth_1to1_3dnowex: subl $12,%esp @@ -97,7 +99,7 @@ synth_1to1_3dnowex: movl 16(%esp),%edx leal 0(,%edx,4),%edx movl $decwin+64,%eax - movl %eax,%ecx + movl %eax,%ecx subl %edx,%ecx movl $16,%ebp @@ -134,9 +136,7 @@ synth_1to1_3dnowex: pfmul 56(%ebx),%mm0 pfadd %mm0,%mm4 - movq %mm4,%mm0 - psrlq $32,%mm0 - pfsub %mm0,%mm4 + pfnacc %mm4, %mm4 pf2id %mm4,%mm4 movd %mm4,%eax @@ -196,7 +196,7 @@ synth_1to1_3dnowex: movl $15,%ebp .L68: - psubd %mm0,%mm0 + pxor %mm0, %mm0 movq (%ecx),%mm2 pfmul (%ebx),%mm2 |