__umulh - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers

#ifndef _NTINTSAFE_H_INCLUDED_
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP | WINAPI_PARTITION_SYSTEM | WINAPI_PARTITION_GAMES)
#if defined(_USE_INTRINSIC_MULTIPLY128)
#if defined(_M_ARM64) || defined(_M_ARM64EC) || defined(_M_HYBRID_X86_ARM64)

ULONG64
__umulh(
    _In_ ULONG64 Multiplicand,
    _In_ ULONG64 Multiplier
    );

#endif
#endif
#endif
#endif
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// ntintsafe.h

ULONG64 __umulh(
  ULONG64 Multiplicand,
  ULONG64 Multiplier
);
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nf-ntintsafe-__umulh)

Description

For more info, see ARM64 intrinsics.

Parameters

`Multiplicand`

`Multiplier`

Return value

Remarks

See also

View the official Windows Driver Kit DDI reference

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