diff options
| author | nickols_k <nickols_k@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2001-05-11 10:25:55 +0000 |
|---|---|---|
| committer | nickols_k <nickols_k@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2001-05-11 10:25:55 +0000 |
| commit | 8822062c08ae5d5b86f445bc8475a0823d169be2 (patch) | |
| tree | a79c0d6038909987e81645036b68838ae481125b /mp3lib | |
| parent | 2f17d022b1f2dfc081fff31f92d9022b46f8beab (diff) | |
| download | mpv-8822062c08ae5d5b86f445bc8475a0823d169be2.tar.bz2 mpv-8822062c08ae5d5b86f445bc8475a0823d169be2.tar.xz | |
improvements
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@764 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'mp3lib')
| -rw-r--r-- | mp3lib/decode_k7.s | 75 |
1 files changed, 27 insertions, 48 deletions
diff --git a/mp3lib/decode_k7.s b/mp3lib/decode_k7.s index c6bcd688d5..4120b8e564 100644 --- a/mp3lib/decode_k7.s +++ b/mp3lib/decode_k7.s @@ -4,6 +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) +/// (using memory reference as operand of instructions) /// - change function name for support 3DNowEx! automatic detect /// /// note: because K7 processors are an aggresive out-of-order three-way @@ -100,43 +102,36 @@ synth_1to1_3dnowex: movl $16,%ebp .L55: + movq (%ecx),%mm4 - movq (%ebx),%mm3 movq 8(%ecx),%mm0 - movq 8(%ebx),%mm1 - pfmul %mm3,%mm4 + pfmul (%ebx),%mm4 - movq 16(%ecx),%mm2 - pfmul %mm1,%mm0 + pfmul 8(%ebx),%mm0 movq 16(%ebx),%mm3 pfadd %mm0,%mm4 movq 24(%ecx),%mm0 - pfmul %mm2,%mm3 - movq 24(%ebx),%mm1 + pfmul 16(%ecx),%mm3 pfadd %mm3,%mm4 - movq 32(%ecx),%mm2 - pfmul %mm1,%mm0 + pfmul 24(%ebx),%mm0 movq 32(%ebx),%mm3 pfadd %mm0,%mm4 movq 40(%ecx),%mm0 - pfmul %mm2,%mm3 - movq 40(%ebx),%mm1 + pfmul 32(%ecx),%mm3 pfadd %mm3,%mm4 - movq 48(%ecx),%mm2 - pfmul %mm1,%mm0 + pfmul 40(%ebx),%mm0 movq 48(%ebx),%mm3 pfadd %mm0,%mm4 movq 56(%ecx),%mm0 - pfmul %mm2,%mm3 - movq 56(%ebx),%mm1 + pfmul 48(%ecx),%mm3 pfadd %mm3,%mm4 - pfmul %mm1,%mm0 + pfmul 56(%ebx),%mm0 pfadd %mm0,%mm4 movq %mm4,%mm0 @@ -158,42 +153,34 @@ synth_1to1_3dnowex: / --- end of loop 1 --- movd (%ecx),%mm2 - movd (%ebx),%mm1 - pfmul %mm1,%mm2 + pfmul (%ebx),%mm2 - movd 8(%ecx),%mm0 movd 8(%ebx),%mm1 - pfmul %mm0,%mm1 + pfmul 8(%ecx),%mm1 pfadd %mm1,%mm2 - movd 16(%ecx),%mm0 movd 16(%ebx),%mm1 - pfmul %mm0,%mm1 + pfmul 16(%ecx),%mm1 pfadd %mm1,%mm2 - movd 24(%ecx),%mm0 movd 24(%ebx),%mm1 - pfmul %mm0,%mm1 + pfmul 24(%ecx),%mm1 pfadd %mm1,%mm2 - movd 32(%ecx),%mm0 movd 32(%ebx),%mm1 - pfmul %mm0,%mm1 + pfmul 32(%ecx),%mm1 pfadd %mm1,%mm2 - movd 40(%ecx),%mm0 movd 40(%ebx),%mm1 - pfmul %mm0,%mm1 + pfmul 40(%ecx),%mm1 pfadd %mm1,%mm2 - movd 48(%ecx),%mm0 movd 48(%ebx),%mm1 - pfmul %mm0,%mm1 + pfmul 48(%ecx),%mm1 pfadd %mm1,%mm2 - movd 56(%ecx),%mm0 movd 56(%ebx),%mm1 - pfmul %mm0,%mm1 + pfmul 56(%ecx),%mm1 pfadd %mm1,%mm2 pf2id %mm2,%mm2 @@ -211,44 +198,36 @@ synth_1to1_3dnowex: .L68: psubd %mm0,%mm0 - movq (%ebx),%mm1 movq (%ecx),%mm2 - pfmul %mm1,%mm2 + pfmul (%ebx),%mm2 pfsub %mm2,%mm0 - movq 8(%ebx),%mm3 movq 8(%ecx),%mm4 - pfmul %mm3,%mm4 + pfmul 8(%ebx),%mm4 pfsub %mm4,%mm0 - movq 16(%ebx),%mm1 movq 16(%ecx),%mm2 - pfmul %mm1,%mm2 + pfmul 16(%ebx),%mm2 pfsub %mm2,%mm0 - movq 24(%ebx),%mm3 movq 24(%ecx),%mm4 - pfmul %mm3,%mm4 + pfmul 24(%ebx),%mm4 pfsub %mm4,%mm0 - movq 32(%ebx),%mm1 movq 32(%ecx),%mm2 - pfmul %mm1,%mm2 + pfmul 32(%ebx),%mm2 pfsub %mm2,%mm0 - movq 40(%ebx),%mm3 movq 40(%ecx),%mm4 - pfmul %mm3,%mm4 + pfmul 40(%ebx),%mm4 pfsub %mm4,%mm0 - movq 48(%ebx),%mm1 movq 48(%ecx),%mm2 - pfmul %mm1,%mm2 + pfmul 48(%ebx),%mm2 pfsub %mm2,%mm0 - movq 56(%ebx),%mm3 movq 56(%ecx),%mm4 - pfmul %mm3,%mm4 + pfmul 56(%ebx),%mm4 pfsub %mm4,%mm0 pfacc %mm0,%mm0 |