clang 20.0.0git
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#include <pmmintrin.h>
Go to the source code of this file.
Macros | |
#define | __DEFAULT_FN_ATTRS |
#define | __trunc64(x) (__m64) __builtin_shufflevector((__v2di)(x), __extension__(__v2di){}, 0) |
#define | __anyext128(x) |
#define | _mm_alignr_epi8(a, b, n) |
Concatenates the two 128-bit integer vector operands, and right-shifts the result by the number of bytes specified in the immediate operand. | |
#define | _mm_alignr_pi8(a, b, n) |
Concatenates the two 64-bit integer vector operands, and right-shifts the result by the number of bytes specified in the immediate operand. | |
Functions | |
static __inline__ __m64 __DEFAULT_FN_ATTRS | _mm_abs_pi8 (__m64 __a) |
Computes the absolute value of each of the packed 8-bit signed integers in the source operand and stores the 8-bit unsigned integer results in the destination. | |
static __inline__ __m128i __DEFAULT_FN_ATTRS | _mm_abs_epi8 (__m128i __a) |
Computes the absolute value of each of the packed 8-bit signed integers in the source operand and stores the 8-bit unsigned integer results in the destination. | |
static __inline__ __m64 __DEFAULT_FN_ATTRS | _mm_abs_pi16 (__m64 __a) |
Computes the absolute value of each of the packed 16-bit signed integers in the source operand and stores the 16-bit unsigned integer results in the destination. | |
static __inline__ __m128i __DEFAULT_FN_ATTRS | _mm_abs_epi16 (__m128i __a) |
Computes the absolute value of each of the packed 16-bit signed integers in the source operand and stores the 16-bit unsigned integer results in the destination. | |
static __inline__ __m64 __DEFAULT_FN_ATTRS | _mm_abs_pi32 (__m64 __a) |
Computes the absolute value of each of the packed 32-bit signed integers in the source operand and stores the 32-bit unsigned integer results in the destination. | |
static __inline__ __m128i __DEFAULT_FN_ATTRS | _mm_abs_epi32 (__m128i __a) |
Computes the absolute value of each of the packed 32-bit signed integers in the source operand and stores the 32-bit unsigned integer results in the destination. | |
static __inline__ __m128i __DEFAULT_FN_ATTRS | _mm_hadd_epi16 (__m128i __a, __m128i __b) |
Horizontally adds the adjacent pairs of values contained in 2 packed 128-bit vectors of [8 x i16]. | |
static __inline__ __m128i __DEFAULT_FN_ATTRS | _mm_hadd_epi32 (__m128i __a, __m128i __b) |
Horizontally adds the adjacent pairs of values contained in 2 packed 128-bit vectors of [4 x i32]. | |
static __inline__ __m64 __DEFAULT_FN_ATTRS | _mm_hadd_pi16 (__m64 __a, __m64 __b) |
Horizontally adds the adjacent pairs of values contained in 2 packed 64-bit vectors of [4 x i16]. | |
static __inline__ __m64 __DEFAULT_FN_ATTRS | _mm_hadd_pi32 (__m64 __a, __m64 __b) |
Horizontally adds the adjacent pairs of values contained in 2 packed 64-bit vectors of [2 x i32]. | |
static __inline__ __m128i __DEFAULT_FN_ATTRS | _mm_hadds_epi16 (__m128i __a, __m128i __b) |
Horizontally adds, with saturation, the adjacent pairs of values contained in two packed 128-bit vectors of [8 x i16]. | |
static __inline__ __m64 __DEFAULT_FN_ATTRS | _mm_hadds_pi16 (__m64 __a, __m64 __b) |
Horizontally adds, with saturation, the adjacent pairs of values contained in two packed 64-bit vectors of [4 x i16]. | |
static __inline__ __m128i __DEFAULT_FN_ATTRS | _mm_hsub_epi16 (__m128i __a, __m128i __b) |
Horizontally subtracts the adjacent pairs of values contained in 2 packed 128-bit vectors of [8 x i16]. | |
static __inline__ __m128i __DEFAULT_FN_ATTRS | _mm_hsub_epi32 (__m128i __a, __m128i __b) |
Horizontally subtracts the adjacent pairs of values contained in 2 packed 128-bit vectors of [4 x i32]. | |
static __inline__ __m64 __DEFAULT_FN_ATTRS | _mm_hsub_pi16 (__m64 __a, __m64 __b) |
Horizontally subtracts the adjacent pairs of values contained in 2 packed 64-bit vectors of [4 x i16]. | |
static __inline__ __m64 __DEFAULT_FN_ATTRS | _mm_hsub_pi32 (__m64 __a, __m64 __b) |
Horizontally subtracts the adjacent pairs of values contained in 2 packed 64-bit vectors of [2 x i32]. | |
static __inline__ __m128i __DEFAULT_FN_ATTRS | _mm_hsubs_epi16 (__m128i __a, __m128i __b) |
Horizontally subtracts, with saturation, the adjacent pairs of values contained in two packed 128-bit vectors of [8 x i16]. | |
static __inline__ __m64 __DEFAULT_FN_ATTRS | _mm_hsubs_pi16 (__m64 __a, __m64 __b) |
Horizontally subtracts, with saturation, the adjacent pairs of values contained in two packed 64-bit vectors of [4 x i16]. | |
static __inline__ __m128i __DEFAULT_FN_ATTRS | _mm_maddubs_epi16 (__m128i __a, __m128i __b) |
Multiplies corresponding pairs of packed 8-bit unsigned integer values contained in the first source operand and packed 8-bit signed integer values contained in the second source operand, adds pairs of contiguous products with signed saturation, and writes the 16-bit sums to the corresponding bits in the destination. | |
static __inline__ __m64 __DEFAULT_FN_ATTRS | _mm_maddubs_pi16 (__m64 __a, __m64 __b) |
Multiplies corresponding pairs of packed 8-bit unsigned integer values contained in the first source operand and packed 8-bit signed integer values contained in the second source operand, adds pairs of contiguous products with signed saturation, and writes the 16-bit sums to the corresponding bits in the destination. | |
static __inline__ __m128i __DEFAULT_FN_ATTRS | _mm_mulhrs_epi16 (__m128i __a, __m128i __b) |
Multiplies packed 16-bit signed integer values, truncates the 32-bit products to the 18 most significant bits by right-shifting, rounds the truncated value by adding 1, and writes bits [16:1] to the destination. | |
static __inline__ __m64 __DEFAULT_FN_ATTRS | _mm_mulhrs_pi16 (__m64 __a, __m64 __b) |
Multiplies packed 16-bit signed integer values, truncates the 32-bit products to the 18 most significant bits by right-shifting, rounds the truncated value by adding 1, and writes bits [16:1] to the destination. | |
static __inline__ __m128i __DEFAULT_FN_ATTRS | _mm_shuffle_epi8 (__m128i __a, __m128i __b) |
Copies the 8-bit integers from a 128-bit integer vector to the destination or clears 8-bit values in the destination, as specified by the second source operand. | |
static __inline__ __m64 __DEFAULT_FN_ATTRS | _mm_shuffle_pi8 (__m64 __a, __m64 __b) |
Copies the 8-bit integers from a 64-bit integer vector to the destination or clears 8-bit values in the destination, as specified by the second source operand. | |
static __inline__ __m128i __DEFAULT_FN_ATTRS | _mm_sign_epi8 (__m128i __a, __m128i __b) |
For each 8-bit integer in the first source operand, perform one of the following actions as specified by the second source operand. | |
static __inline__ __m128i __DEFAULT_FN_ATTRS | _mm_sign_epi16 (__m128i __a, __m128i __b) |
For each 16-bit integer in the first source operand, perform one of the following actions as specified by the second source operand. | |
static __inline__ __m128i __DEFAULT_FN_ATTRS | _mm_sign_epi32 (__m128i __a, __m128i __b) |
For each 32-bit integer in the first source operand, perform one of the following actions as specified by the second source operand. | |
static __inline__ __m64 __DEFAULT_FN_ATTRS | _mm_sign_pi8 (__m64 __a, __m64 __b) |
For each 8-bit integer in the first source operand, perform one of the following actions as specified by the second source operand. | |
static __inline__ __m64 __DEFAULT_FN_ATTRS | _mm_sign_pi16 (__m64 __a, __m64 __b) |
For each 16-bit integer in the first source operand, perform one of the following actions as specified by the second source operand. | |
static __inline__ __m64 __DEFAULT_FN_ATTRS | _mm_sign_pi32 (__m64 __a, __m64 __b) |
For each 32-bit integer in the first source operand, perform one of the following actions as specified by the second source operand. | |
#define __anyext128 | ( | x | ) |
Definition at line 32 of file tmmintrin.h.
#define __DEFAULT_FN_ATTRS |
Definition at line 25 of file tmmintrin.h.
#define __trunc64 | ( | x | ) | (__m64) __builtin_shufflevector((__v2di)(x), __extension__(__v2di){}, 0) |
Definition at line 30 of file tmmintrin.h.
#define _mm_alignr_epi8 | ( | a, | |
b, | |||
n | |||
) |
Concatenates the two 128-bit integer vector operands, and right-shifts the result by the number of bytes specified in the immediate operand.
This intrinsic corresponds to the PALIGNR
instruction.
a | A 128-bit vector of [16 x i8] containing one of the source operands. |
b | A 128-bit vector of [16 x i8] containing one of the source operands. |
n | An immediate operand specifying how many bytes to right-shift the result. |
Definition at line 164 of file tmmintrin.h.
#define _mm_alignr_pi8 | ( | a, | |
b, | |||
n | |||
) |
Concatenates the two 64-bit integer vector operands, and right-shifts the result by the number of bytes specified in the immediate operand.
This intrinsic corresponds to the PALIGNR
instruction.
a | A 64-bit vector of [8 x i8] containing one of the source operands. |
b | A 64-bit vector of [8 x i8] containing one of the source operands. |
n | An immediate operand specifying how many bytes to right-shift the result. |
Definition at line 187 of file tmmintrin.h.
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static |
Computes the absolute value of each of the packed 16-bit signed integers in the source operand and stores the 16-bit unsigned integer results in the destination.
This intrinsic corresponds to the VPABSW
instruction.
__a | A 128-bit vector of [8 x i16]. |
Definition at line 103 of file tmmintrin.h.
References __a.
Referenced by _mm_mask_abs_epi16(), and _mm_maskz_abs_epi16().
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static |
Computes the absolute value of each of the packed 32-bit signed integers in the source operand and stores the 32-bit unsigned integer results in the destination.
This intrinsic corresponds to the VPABSD
instruction.
__a | A 128-bit vector of [4 x i32]. |
Definition at line 139 of file tmmintrin.h.
References __a.
Referenced by _mm_mask_abs_epi32(), and _mm_maskz_abs_epi32().
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static |
Computes the absolute value of each of the packed 8-bit signed integers in the source operand and stores the 8-bit unsigned integer results in the destination.
This intrinsic corresponds to the VPABSB
instruction.
__a | A 128-bit vector of [16 x i8]. |
Definition at line 67 of file tmmintrin.h.
References __a.
Referenced by _mm_mask_abs_epi8(), and _mm_maskz_abs_epi8().
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static |
Computes the absolute value of each of the packed 16-bit signed integers in the source operand and stores the 16-bit unsigned integer results in the destination.
This intrinsic corresponds to the PABSW
instruction.
__a | A 64-bit vector of [4 x i16]. |
Definition at line 85 of file tmmintrin.h.
References __a.
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Computes the absolute value of each of the packed 32-bit signed integers in the source operand and stores the 32-bit unsigned integer results in the destination.
This intrinsic corresponds to the PABSD
instruction.
__a | A 64-bit vector of [2 x i32]. |
Definition at line 121 of file tmmintrin.h.
References __a.
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static |
Computes the absolute value of each of the packed 8-bit signed integers in the source operand and stores the 8-bit unsigned integer results in the destination.
This intrinsic corresponds to the PABSB
instruction.
__a | A 64-bit vector of [8 x i8]. |
Definition at line 49 of file tmmintrin.h.
References __a.
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Horizontally adds the adjacent pairs of values contained in 2 packed 128-bit vectors of [8 x i16].
This intrinsic corresponds to the VPHADDW
instruction.
__a | A 128-bit vector of [8 x i16] containing one of the source operands. The horizontal sums of the values are stored in the lower bits of the destination. |
__b | A 128-bit vector of [8 x i16] containing one of the source operands. The horizontal sums of the values are stored in the upper bits of the destination. |
Definition at line 211 of file tmmintrin.h.
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Horizontally adds the adjacent pairs of values contained in 2 packed 128-bit vectors of [4 x i32].
This intrinsic corresponds to the VPHADDD
instruction.
__a | A 128-bit vector of [4 x i32] containing one of the source operands. The horizontal sums of the values are stored in the lower bits of the destination. |
__b | A 128-bit vector of [4 x i32] containing one of the source operands. The horizontal sums of the values are stored in the upper bits of the destination. |
Definition at line 234 of file tmmintrin.h.
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static |
Horizontally adds the adjacent pairs of values contained in 2 packed 64-bit vectors of [4 x i16].
This intrinsic corresponds to the PHADDW
instruction.
__a | A 64-bit vector of [4 x i16] containing one of the source operands. The horizontal sums of the values are stored in the lower bits of the destination. |
__b | A 64-bit vector of [4 x i16] containing one of the source operands. The horizontal sums of the values are stored in the upper bits of the destination. |
Definition at line 257 of file tmmintrin.h.
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static |
Horizontally adds the adjacent pairs of values contained in 2 packed 64-bit vectors of [2 x i32].
This intrinsic corresponds to the PHADDD
instruction.
__a | A 64-bit vector of [2 x i32] containing one of the source operands. The horizontal sums of the values are stored in the lower bits of the destination. |
__b | A 64-bit vector of [2 x i32] containing one of the source operands. The horizontal sums of the values are stored in the upper bits of the destination. |
Definition at line 281 of file tmmintrin.h.
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static |
Horizontally adds, with saturation, the adjacent pairs of values contained in two packed 128-bit vectors of [8 x i16].
Positive sums greater than 0x7FFF are saturated to 0x7FFF. Negative sums less than 0x8000 are saturated to 0x8000.
This intrinsic corresponds to the VPHADDSW
instruction.
__a | A 128-bit vector of [8 x i16] containing one of the source operands. The horizontal sums of the values are stored in the lower bits of the destination. |
__b | A 128-bit vector of [8 x i16] containing one of the source operands. The horizontal sums of the values are stored in the upper bits of the destination. |
Definition at line 308 of file tmmintrin.h.
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static |
Horizontally adds, with saturation, the adjacent pairs of values contained in two packed 64-bit vectors of [4 x i16].
Positive sums greater than 0x7FFF are saturated to 0x7FFF. Negative sums less than 0x8000 are saturated to 0x8000.
This intrinsic corresponds to the PHADDSW
instruction.
__a | A 64-bit vector of [4 x i16] containing one of the source operands. The horizontal sums of the values are stored in the lower bits of the destination. |
__b | A 64-bit vector of [4 x i16] containing one of the source operands. The horizontal sums of the values are stored in the upper bits of the destination. |
Definition at line 334 of file tmmintrin.h.
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static |
Horizontally subtracts the adjacent pairs of values contained in 2 packed 128-bit vectors of [8 x i16].
This intrinsic corresponds to the VPHSUBW
instruction.
__a | A 128-bit vector of [8 x i16] containing one of the source operands. The horizontal differences between the values are stored in the lower bits of the destination. |
__b | A 128-bit vector of [8 x i16] containing one of the source operands. The horizontal differences between the values are stored in the upper bits of the destination. |
Definition at line 358 of file tmmintrin.h.
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static |
Horizontally subtracts the adjacent pairs of values contained in 2 packed 128-bit vectors of [4 x i32].
This intrinsic corresponds to the VPHSUBD
instruction.
__a | A 128-bit vector of [4 x i32] containing one of the source operands. The horizontal differences between the values are stored in the lower bits of the destination. |
__b | A 128-bit vector of [4 x i32] containing one of the source operands. The horizontal differences between the values are stored in the upper bits of the destination. |
Definition at line 381 of file tmmintrin.h.
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static |
Horizontally subtracts the adjacent pairs of values contained in 2 packed 64-bit vectors of [4 x i16].
This intrinsic corresponds to the PHSUBW
instruction.
__a | A 64-bit vector of [4 x i16] containing one of the source operands. The horizontal differences between the values are stored in the lower bits of the destination. |
__b | A 64-bit vector of [4 x i16] containing one of the source operands. The horizontal differences between the values are stored in the upper bits of the destination. |
Definition at line 404 of file tmmintrin.h.
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static |
Horizontally subtracts the adjacent pairs of values contained in 2 packed 64-bit vectors of [2 x i32].
This intrinsic corresponds to the PHSUBD
instruction.
__a | A 64-bit vector of [2 x i32] containing one of the source operands. The horizontal differences between the values are stored in the lower bits of the destination. |
__b | A 64-bit vector of [2 x i32] containing one of the source operands. The horizontal differences between the values are stored in the upper bits of the destination. |
Definition at line 428 of file tmmintrin.h.
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static |
Horizontally subtracts, with saturation, the adjacent pairs of values contained in two packed 128-bit vectors of [8 x i16].
Positive differences greater than 0x7FFF are saturated to 0x7FFF. Negative differences less than 0x8000 are saturated to 0x8000.
This intrinsic corresponds to the VPHSUBSW
instruction.
__a | A 128-bit vector of [8 x i16] containing one of the source operands. The horizontal differences between the values are stored in the lower bits of the destination. |
__b | A 128-bit vector of [8 x i16] containing one of the source operands. The horizontal differences between the values are stored in the upper bits of the destination. |
Definition at line 455 of file tmmintrin.h.
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static |
Horizontally subtracts, with saturation, the adjacent pairs of values contained in two packed 64-bit vectors of [4 x i16].
Positive differences greater than 0x7FFF are saturated to 0x7FFF. Negative differences less than 0x8000 are saturated to 0x8000.
This intrinsic corresponds to the PHSUBSW
instruction.
__a | A 64-bit vector of [4 x i16] containing one of the source operands. The horizontal differences between the values are stored in the lower bits of the destination. |
__b | A 64-bit vector of [4 x i16] containing one of the source operands. The horizontal differences between the values are stored in the upper bits of the destination. |
Definition at line 481 of file tmmintrin.h.
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Multiplies corresponding pairs of packed 8-bit unsigned integer values contained in the first source operand and packed 8-bit signed integer values contained in the second source operand, adds pairs of contiguous products with signed saturation, and writes the 16-bit sums to the corresponding bits in the destination.
For example, bits [7:0] of both operands are multiplied, bits [15:8] of both operands are multiplied, and the sum of both results is written to bits [15:0] of the destination.
This intrinsic corresponds to the VPMADDUBSW
instruction.
__a | A 128-bit integer vector containing the first source operand. |
__b | A 128-bit integer vector containing the second source operand. |
Definition at line 516 of file tmmintrin.h.
Referenced by _mm_mask_maddubs_epi16(), and _mm_maskz_maddubs_epi16().
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Multiplies corresponding pairs of packed 8-bit unsigned integer values contained in the first source operand and packed 8-bit signed integer values contained in the second source operand, adds pairs of contiguous products with signed saturation, and writes the 16-bit sums to the corresponding bits in the destination.
For example, bits [7:0] of both operands are multiplied, bits [15:8] of both operands are multiplied, and the sum of both results is written to bits [15:0] of the destination.
This intrinsic corresponds to the PMADDUBSW
instruction.
__a | A 64-bit integer vector containing the first source operand. |
__b | A 64-bit integer vector containing the second source operand. |
Definition at line 546 of file tmmintrin.h.
References __a, __anyext128, __b, and __trunc64.
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Multiplies packed 16-bit signed integer values, truncates the 32-bit products to the 18 most significant bits by right-shifting, rounds the truncated value by adding 1, and writes bits [16:1] to the destination.
This intrinsic corresponds to the VPMULHRSW
instruction.
__a | A 128-bit vector of [8 x i16] containing one of the source operands. |
__b | A 128-bit vector of [8 x i16] containing one of the source operands. |
Definition at line 567 of file tmmintrin.h.
Referenced by _mm_mask_mulhrs_epi16(), and _mm_maskz_mulhrs_epi16().
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Multiplies packed 16-bit signed integer values, truncates the 32-bit products to the 18 most significant bits by right-shifting, rounds the truncated value by adding 1, and writes bits [16:1] to the destination.
This intrinsic corresponds to the PMULHRSW
instruction.
__a | A 64-bit vector of [4 x i16] containing one of the source operands. |
__b | A 64-bit vector of [4 x i16] containing one of the source operands. |
Definition at line 587 of file tmmintrin.h.
References __a, __anyext128, __b, and __trunc64.
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Copies the 8-bit integers from a 128-bit integer vector to the destination or clears 8-bit values in the destination, as specified by the second source operand.
This intrinsic corresponds to the VPSHUFB
instruction.
__a | A 128-bit integer vector containing the values to be copied. |
__b | A 128-bit integer vector containing control bytes corresponding to positions in the destination: Bit 7: 1: Clear the corresponding byte in the destination. 0: Copy the selected source byte to the corresponding byte in the destination. Bits [6:4] Reserved. Bits [3:0] select the source byte to be copied. |
Definition at line 614 of file tmmintrin.h.
Referenced by _mm_mask_shuffle_epi8(), and _mm_maskz_shuffle_epi8().
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Copies the 8-bit integers from a 64-bit integer vector to the destination or clears 8-bit values in the destination, as specified by the second source operand.
This intrinsic corresponds to the PSHUFB
instruction.
__a | A 64-bit integer vector containing the values to be copied. |
__b | A 64-bit integer vector containing control bytes corresponding to positions in the destination: Bit 7: 1: Clear the corresponding byte in the destination. 0: Copy the selected source byte to the corresponding byte in the destination. Bits [2:0] select the source byte to be copied. |
Definition at line 639 of file tmmintrin.h.
References __a, __anyext128, __b, and __trunc64.
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For each 16-bit integer in the first source operand, perform one of the following actions as specified by the second source operand.
If the word in the second source is negative, calculate the two's complement of the corresponding word in the first source, and write that value to the destination. If the word in the second source is positive, copy the corresponding word from the first source to the destination. If the word in the second source is zero, clear the corresponding word in the destination.
This intrinsic corresponds to the VPSIGNW
instruction.
__a | A 128-bit integer vector containing the values to be copied. |
__b | A 128-bit integer vector containing control words corresponding to positions in the destination. |
Definition at line 694 of file tmmintrin.h.
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For each 32-bit integer in the first source operand, perform one of the following actions as specified by the second source operand.
If the doubleword in the second source is negative, calculate the two's complement of the corresponding word in the first source, and write that value to the destination. If the doubleword in the second source is positive, copy the corresponding word from the first source to the destination. If the doubleword in the second source is zero, clear the corresponding word in the destination.
This intrinsic corresponds to the VPSIGND
instruction.
__a | A 128-bit integer vector containing the values to be copied. |
__b | A 128-bit integer vector containing control doublewords corresponding to positions in the destination. |
Definition at line 720 of file tmmintrin.h.
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For each 8-bit integer in the first source operand, perform one of the following actions as specified by the second source operand.
If the byte in the second source is negative, calculate the two's complement of the corresponding byte in the first source, and write that value to the destination. If the byte in the second source is positive, copy the corresponding byte from the first source to the destination. If the byte in the second source is zero, clear the corresponding byte in the destination.
This intrinsic corresponds to the VPSIGNB
instruction.
__a | A 128-bit integer vector containing the values to be copied. |
__b | A 128-bit integer vector containing control bytes corresponding to positions in the destination. |
Definition at line 668 of file tmmintrin.h.
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For each 16-bit integer in the first source operand, perform one of the following actions as specified by the second source operand.
If the word in the second source is negative, calculate the two's complement of the corresponding word in the first source, and write that value to the destination. If the word in the second source is positive, copy the corresponding word from the first source to the destination. If the word in the second source is zero, clear the corresponding word in the destination.
This intrinsic corresponds to the PSIGNW
instruction.
__a | A 64-bit integer vector containing the values to be copied. |
__b | A 64-bit integer vector containing control words corresponding to positions in the destination. |
Definition at line 773 of file tmmintrin.h.
References __a, __anyext128, __b, and __trunc64.
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For each 32-bit integer in the first source operand, perform one of the following actions as specified by the second source operand.
If the doubleword in the second source is negative, calculate the two's complement of the corresponding doubleword in the first source, and write that value to the destination. If the doubleword in the second source is positive, copy the corresponding doubleword from the first source to the destination. If the doubleword in the second source is zero, clear the corresponding doubleword in the destination.
This intrinsic corresponds to the PSIGND
instruction.
__a | A 64-bit integer vector containing the values to be copied. |
__b | A 64-bit integer vector containing two control doublewords corresponding to positions in the destination. |
Definition at line 800 of file tmmintrin.h.
References __a, __anyext128, __b, and __trunc64.
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For each 8-bit integer in the first source operand, perform one of the following actions as specified by the second source operand.
If the byte in the second source is negative, calculate the two's complement of the corresponding byte in the first source, and write that value to the destination. If the byte in the second source is positive, copy the corresponding byte from the first source to the destination. If the byte in the second source is zero, clear the corresponding byte in the destination.
This intrinsic corresponds to the PSIGNB
instruction.
__a | A 64-bit integer vector containing the values to be copied. |
__b | A 64-bit integer vector containing control bytes corresponding to positions in the destination. |
Definition at line 746 of file tmmintrin.h.
References __a, __anyext128, __b, and __trunc64.