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author | Zuxy Meng <zuxy.meng@gmail.com> | 2009-02-23 15:53:39 +0000 |
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committer | Zuxy Meng <zuxy.meng@gmail.com> | 2009-02-23 15:53:39 +0000 |
commit | d05f808dc90a55f2a6eabe6ff62eb3a056e428d3 (patch) | |
tree | 4bfeb842799be9c903413313bbebc595226bb8b0 /libavcodec/x86 | |
parent | f8c96d011e72f52513c62cec63ae76ff24e4f135 (diff) | |
download | ffmpeg-streaming-d05f808dc90a55f2a6eabe6ff62eb3a056e428d3.zip ffmpeg-streaming-d05f808dc90a55f2a6eabe6ff62eb3a056e428d3.tar.gz |
Remove CPUID availability check on AMD64 as it's architectural.
Originally committed as revision 17543 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/x86')
-rw-r--r-- | libavcodec/x86/cpuid.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/libavcodec/x86/cpuid.c b/libavcodec/x86/cpuid.c index 033ac0d..63feffc 100644 --- a/libavcodec/x86/cpuid.c +++ b/libavcodec/x86/cpuid.c @@ -42,19 +42,13 @@ int mm_support(void) int rval = 0; int eax, ebx, ecx, edx; int max_std_level, max_ext_level, std_caps=0, ext_caps=0; - x86_reg a, c; -#if ARCH_X86_64 -#define PUSHF "pushfq\n\t" -#define POPF "popfq\n\t" -#else -#define PUSHF "pushfl\n\t" -#define POPF "popfl\n\t" -#endif +#if ARCH_X86_32 + x86_reg a, c; __asm__ volatile ( /* See if CPUID instruction is supported ... */ /* ... Get copies of EFLAGS into eax and ecx */ - PUSHF + "pushfl\n\t" "pop %0\n\t" "mov %0, %1\n\t" @@ -62,10 +56,10 @@ int mm_support(void) /* to the EFLAGS reg */ "xor $0x200000, %0\n\t" "push %0\n\t" - POPF + "popfl\n\t" /* ... Get the (hopefully modified) EFLAGS */ - PUSHF + "pushfl\n\t" "pop %0\n\t" : "=a" (a), "=c" (c) : @@ -74,6 +68,7 @@ int mm_support(void) if (a == c) return 0; /* CPUID not supported */ +#endif cpuid(0, max_std_level, ebx, ecx, edx); |