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Revert "get_bits: remove x86 inline asm in A32 bitstream reader"

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This reverts commit 23ce6e7212.
This commit is contained in:
Elvis Presley
2011-09-15 06:01:15 +02:00
parent 5554de13b2
commit 3dd47ae537
1 changed files with 8 additions and 0 deletions
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8
libavcodec/get_bits.h
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@@ -201,11 +201,19 @@ static inline void skip_bits_long(GetBitContext *s, int n){
} \
} while (0)
#if ARCH_X86
# define SKIP_CACHE(name, gb, num) \
__asm__("shldl %2, %1, %0 \n\t" \
"shll %2, %1 \n\t" \
: "+r" (name##_cache0), "+r" (name##_cache1) \
: "Ic" ((uint8_t)(num)))
#else
# define SKIP_CACHE(name, gb, num) do { \
name##_cache0 <<= (num); \
name##_cache0 |= NEG_USR32(name##_cache1,num); \
name##_cache1 <<= (num); \
} while (0)
#endif
# define SKIP_COUNTER(name, gb, num) name##_bit_count += (num)