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pathc from w3seek : bug 1702 : Fix BitScanReverse()
svn path=/trunk/; revision=23156
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1 changed files with 7 additions and 7 deletions
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@ -3818,13 +3818,13 @@ static __inline__ BOOLEAN
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BitScanReverse(OUT ULONG *Index,
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IN ULONG Mask)
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{
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LONG OldBit;
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__asm__ __volatile__("bsrl %1,%2\n\t"
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"sbbl %0,%0\n\t"
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:"=r" (OldBit),"=m" (*Index)
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:"Ir" (Mask)
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: "memory");
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return OldBit;
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BOOLEAN BitPosition = 0;
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__asm__ __volatile__("bsrl %2,%0\n\t"
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"setnz %1\n\t"
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:"=&r" (*Index), "=r" (BitPosition)
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:"rm" (Mask)
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:"memory");
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return BitPosition;
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}
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#endif
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