mirror of
https://github.com/mpv-player/mpv
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89e9c29aff
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6336 b3059339-0415-0410-9bf9-f77b7e298cf2
58 lines
1.1 KiB
C
58 lines
1.1 KiB
C
/*
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This file contains most common definitions to make MMX stuff
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easy portable between different kinds of mmx clones
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Written By Nick Kurshev <nickols_k@mail.ru>
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*/
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#ifndef MMXDEFS_INCLUDED
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#define MMXDEFS_INCLUDED
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#include "config.h"
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#undef HAVE_MMX1
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#if defined(HAVE_MMX) && !defined(HAVE_MMX2) && !defined(HAVE_3DNOW) && !defined(HAVE_SSE)
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#define HAVE_MMX1
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#endif
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#undef HAVE_K6_2PLUS
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#if !defined( HAVE_MMX2 ) && defined( HAVE_3DNOW )
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#define HAVE_K6_2PLUS
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#endif
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#ifdef HAVE_SSE2
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#define MMREG_SIZE 16
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#else
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#define MMREG_SIZE 8
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#endif
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#ifdef HAVE_3DNOW
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#define PREFETCH "prefetch"
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#define PREFETCHW "prefetchw"
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#define PAVGB "pavgusb"
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#elif defined ( HAVE_MMX2 )
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#define PREFETCH "prefetchnta"
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#define PREFETCHW "prefetcht0"
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#define PAVGB "pavgb"
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#else
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#define PREFETCH "/nop"
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#define PREFETCHW "/nop"
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#endif
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#ifdef HAVE_3DNOW
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/* On K6 femms is faster of emms. On K7 femms is directly mapped on emms. */
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#define EMMS "femms"
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#else
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#define EMMS "emms"
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#endif
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#ifdef HAVE_MMX2
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#define MOVNTQ "movntq"
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#define SFENCE "sfence"
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#else
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#define MOVNTQ "movq"
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#define SFENCE "/nop"
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#endif
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#endif
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