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add missing definition of MultiplyHigh and UnsignedMultiplyHigh, fix typos.

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svn path=/trunk/; revision=40090
This commit is contained in:
Timo Kreuzer 2009-03-18 17:12:57 +00:00
parent 5e3ee25bd3
commit 1ec5957c2c
1 changed files with 6 additions and 2 deletions
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8
reactos/include/ddk/wdm.h
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@ -1864,6 +1864,10 @@ RtlExtendedLargeIntegerDivide(
#endif
#if defined(_AMD64_)
#define MultiplyHigh __mulh
#define UnsignedMultiplyHigh __umulh
//DECLSPEC_DEPRECATED_DDK
static __inline
LARGE_INTEGER
@ -1871,13 +1875,13 @@ NTAPI_INLINE
RtlExtendedMagicDivide(
IN LARGE_INTEGER Dividend,
IN LARGE_INTEGER MagicDivisor,
IN CCHAR ShiftCount);
IN CCHAR ShiftCount)
{
LARGE_INTEGER ret;
ULONG64 ret64;
BOOLEAN Pos;
Pos = (Dividend.QuadPart >= 0);
ret64 = UnsignedMultiplyHigh(Pos ? Dividend.QuadPart : -Dividend.QuadPart
ret64 = UnsignedMultiplyHigh(Pos ? Dividend.QuadPart : -Dividend.QuadPart,
MagicDivisor.QuadPart);
ret64 >>= ShiftCount;
ret.QuadPart = Pos ? ret64 : -ret64;