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Microsoft Specific
Emits the IPF Shift Right Pair (shrp) instruction.
__m64 __m64_shrp(
__m64 a,
__m64 b,
const int nBit
);
Parameters
[in] a
An __m64 union containing a 64-bit data field.[in] b
An __m64 union containing a 64-bit data field.[in] nBit
The number of bits to right shift the concatenated pair. Valid values from 0 to 63.
Return Value
The least significant 64 bits of the concatenated, right-shifted pair.
Requirements
Intrinsic |
Architecture |
|---|---|
__m64_shrp |
IPF |
Header file <intrin.h>
Remarks
Two 64-bit data fields are concatenated, a being placed in the upper 64 bits and b in the lower 64 bits; the resulting 128-bit value is right shifted by nBit bits and the lower 64 bits are returned.
Example
// shrp.cpp
// processor: IPF
#include <stdio.h>
#include <intrin.h>
#pragma intrinsic(__m64_shrp)
int main()
{
__m64 m, n, result;
m.m64_u64 = 0x1111111111111111;
n.m64_u64 = 0x2222222222222222;
result = __m64_shrp(m, n, 32);
printf_s("__m64_shrp(0x%I64x, 0x%I64x, %d) returns\n0x%I64x\n",
m, n, 32, result);
result = __m64_shrp(m, n, 17);
printf_s("__m64_shrp(0x%I64x, 0x%I64x, %d) returns\n0x%I64x\n",
m, n, 17, result);
}
__m64_shrp(0x1111111111111111, 0x2222222222222222, 32) returns 0x1111111122222222 __m64_shrp(0x1111111111111111, 0x2222222222222222, 17) returns 0x8888911111111111