__shiftright128

Microsoft Specific

Shifts a 128-bit quantity, represented as two 64-bit quantities LowPart and HighPart, to the right by a number of bits specified by Shift and returns the low 64 bits of the result.

Syntax

unsigned __int64 __shiftright128(
   unsigned __int64 LowPart,
   unsigned __int64 HighPart,
   unsigned char Shift
);

Parameters

LowPart
[in] The low 64 bits of the 128-bit quantity to shift.

HighPart
[in] The high 64 bits of the 128-bit quantity to shift.

Shift
[in] The number of bits to shift.

Return Value

The low 64 bits of the result.

Requirements

Intrinsic Architecture
__shiftright128 x64

Header file <intrin.h>

Remarks

The Shift value is always modulo 64 so that, for example, if you call __shiftright128(0, 1, 64), the function will shift the high part 0 bits right and return a low part of 0 and not 1 as might otherwise be expected.

Example

For an example, see __shiftleft128.

END Microsoft Specific

See also

__shiftleft128
Compiler Intrinsics