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| author | Aurelien Jacobs <aurel@gnuage.org> | 2004-10-11 02:19:29 +0000 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2004-10-11 02:19:29 +0000 |
| commit | 053dea12f27e6bb8acf6a103ef954da05419d3dc (patch) | |
| tree | a23d86aee2e3ab3c9ad72a6fa1e4882ebd0b1228 /libavcodec/i386/cputest.c | |
| parent | 3ba1438dec553ab106aac8895ddebc01e42c5b71 (diff) | |
| download | ffmpeg-053dea12f27e6bb8acf6a103ef954da05419d3dc.tar.gz | |
adapting existing mmx/mmx2/sse/3dnow optimizations so they work on x86_64 patch by (Aurelien Jacobs <aurel at gnuage dot org>)
Originally committed as revision 3578 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/i386/cputest.c')
| -rw-r--r-- | libavcodec/i386/cputest.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/libavcodec/i386/cputest.c b/libavcodec/i386/cputest.c index 34b813148c..9b2e6a2ce9 100644 --- a/libavcodec/i386/cputest.c +++ b/libavcodec/i386/cputest.c @@ -4,12 +4,20 @@ #include <stdlib.h> #include "../dsputil.h" +#ifdef ARCH_X86_64 +# define REG_b "rbx" +# define REG_S "rsi" +#else +# define REG_b "ebx" +# define REG_S "esi" +#endif + /* ebx saving is necessary for PIC. gcc seems unable to see it alone */ #define cpuid(index,eax,ebx,ecx,edx)\ __asm __volatile\ - ("movl %%ebx, %%esi\n\t"\ + ("mov %%"REG_b", %%"REG_S"\n\t"\ "cpuid\n\t"\ - "xchgl %%ebx, %%esi"\ + "xchg %%"REG_b", %%"REG_S\ : "=a" (eax), "=S" (ebx),\ "=c" (ecx), "=d" (edx)\ : "0" (index)); @@ -24,7 +32,7 @@ int mm_support(void) /* See if CPUID instruction is supported ... */ /* ... Get copies of EFLAGS into eax and ecx */ "pushf\n\t" - "popl %0\n\t" + "pop %0\n\t" "movl %0, %1\n\t" /* ... Toggle the ID bit in one copy and store */ @@ -35,7 +43,7 @@ int mm_support(void) /* ... Get the (hopefully modified) EFLAGS */ "pushf\n\t" - "popl %0\n\t" + "pop %0\n\t" : "=a" (eax), "=c" (ecx) : : "cc" |