__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.
unsigned __int64 __shiftright128(
unsigned __int64 LowPart,
unsigned __int64 HighPart,
unsigned char Shift
);
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.
The low 64 bits of the result.
Intrinsic | Architecture |
---|---|
__shiftright128 |
x64 |
Header file <intrin.h>
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.
For an example, see __shiftleft128.
END Microsoft Specific