Visible to Intel only — GUID: GUID-F72D4D59-3DD1-4215-96C7-7C2543E33085
Visible to Intel only — GUID: GUID-F72D4D59-3DD1-4215-96C7-7C2543E33085
Intrinsics for Scale Operations
The prototypes for Intel® Advanced Vector Extensions 512 (Intel® AVX-512) intrinsics are located in the zmmintrin.h header file.
To use these intrinsics, include the immintrin.h file as follows:
#include <immintrin.h>
Intrinsic Name |
Operation |
Corresponding |
---|---|---|
_mm512_scalef_pd, _mm512_mask_scalef_pd, _mm512_maskz_scalef_pd _mm512_scalef_round_pd, _mm512_mask_scalef_round_pd, _mm512_maskz_scalef_round_pd |
Scale packed float64 values with float64 values. |
VSCALEFPD |
_mm512_scalef_ps, _mm512_mask_scalef_ps, _mm512_maskz_scalef_ps _mm512_scalef_round_ps, _mm512_mask_scalef_round_ps, _mm512_maskz_scalef_round_ps |
Scale packed float32 values with float32 values. |
VSCALEFSD |
_mm_scalef_sd, _mm_mask_scalef_sd, _mm_maskz_scalef_sd _mm_scalef_round_sd, _mm_mask_scalef_round_sd, _mm_maskz_scalef_round_sd |
Scale scalar float64 values with float64 values. |
VSCALEFPS |
_mm_scalef_round_ss, _mm_mask_scalef_round_ss, _mm_maskz_scalef_round_ss _mm_scalef_ss, _mm_mask_scalef_ss, _mm_maskz_scalef_ss |
Scale scalar float32 values with float32 values. |
VSCALEFSS |
_mm512_roundscale_pd, _mm512_mask_roundscale_pd, _mm512_maskz_roundscale_pd |
Scale packed float64 values with float64 values. |
VRNDSCALEPD |
_mm512_roundscale_ps, _mm512_mask_roundscale_ps, _mm512_maskz_roundscale_ps |
Scale packed float32 values with float32 values. |
VRNDSCALEPS |
_mm_roundscale_sd, _mm_mask_roundscale_sd, _mm_maskz_roundscale_sd _mm_roundscale_round_sd, _mm_mask_roundscale_round_sd, _mm_maskz_roundscale_round_sd |
Scale scalar float64 values with float64 values. |
VRNDSCALESD |
_mm_roundscale_ss, _mm_mask_roundscale_ss, _mm_maskz_roundscale_ss _mm_roundscale_round_ss, _mm_mask_roundscale_round_ss, _mm_maskz_roundscale_round_ss |
Scale scalar float32 values with float32 values. |
VRNDSCALE |
variable | definition |
---|---|
k | writemask used as a selector |
a | first source vector element |
b | second source vector element |
src | source element to use based on writemask result |
round | Rounding control values; these can be one of the following (along with the sae suppress all exceptions flag):
|
imm | 8-bit immediate integer specifies offset for destination |
_mm512_roundscale_pd
extern __m512d __cdecl _mm512_roundscale_pd(__m512d a, int imm);
Performs a floating point scale of packed float64 elements in a to the number of fraction bits specified by imm, and stores the result.
_mm512_mask_roundscale_pd
extern __m512d __cdecl _mm512_mask_roundscale_pd(__m512d src, __mmask8 k, __m512d a, int imm);
Performs a floating point scale of packed float64 elements in a to the number of fraction bits specified by imm, and stores the result using writemask k (elements are copied from src when the corresponding mask bit is not set).
_mm512_maskz_roundscale_pd
extern __m512d __cdecl _mm512_maskz_roundscale_pd(__mmask8 k, __m512d a, int imm);
Performs a floating point scale of packed float64 elements in a to the number of fraction bits specified by imm, and stores the result using zeromask k (elements are zeroed out when the corresponding mask bit is not set).
_mm512_roundscale_ps
extern __m512 __cdecl _mm512_roundscale_ps(__m512 a, int imm);
Performs a floating point scale of packed float32 elements in a to the number of fraction bits specified by imm, and stores the result.
_mm512_mask_roundscale_ps
extern __m512 __cdecl _mm512_mask_roundscale_ps(__m512 src, __mmask16 k, __m512 a, int imm);
Performs a floating point scale of packed float32 elements in a to the number of fraction bits specified by imm, and stores the result using writemask k (elements are copied from src when the corresponding mask bit is not set).
_mm512_maskz_roundscale_ps
extern __m512 __cdecl _mm512_maskz_roundscale_ps(__mmask16 k, __m512 a, int imm);
Performs a floating point scale of packed float32 elements in a to the number of fraction bits specified by imm, and stores the result using zeromask k (elements are zeroed out when the corresponding mask bit is not set).
_mm_roundscale_round_sd
extern __m128d __cdecl _mm_roundscale_round_sd(__m128d a, __m128d b, const int imm, const int round);
Rounds the lower float64 element in a to the number of fraction bits specified by imm, stores the result in the lower destination element, and copies the upper element from b to the upper destination element.
_mm_mask_roundscale_round_sd
extern __m128d __cdecl _mm_mask_roundscale_round_sd(__m128d src, __mmask8 k, __m128d a, __m128d b, const int imm, const int round);
Rounds the lower float64 element in a to the number of fraction bits specified by imm, stores the result in the lower destination element using writemask k (the element is copied from src when mask bit 0 is not set), and copies the upper element from b to the upper destination element.
_mm_maskz_roundscale_round_sd
extern __m128d __cdecl _mm_maskz_roundscale_round_sd(__mmask8 k, __m128d a, __m128d b, const int imm, const int round);
Rounds the lower float64 element in a to the number of fraction bits specified by imm, stores the result in the lower destination element using zeromask k (the element is zeroed out when mask bit 0 is not set), and copies the upper element from b to the upper destination element.
_mm_roundscale_sd
extern __m128d __cdecl _mm_roundscale_sd(__m128d a, __m128d b, const int imm);
Rounds the lower float64 element in a to the number of fraction bits specified by imm, stores the result in the lower destination element, and copies the upper element from b to the upper destination element.
_mm_mask_roundscale_sd
extern __m128d __cdecl _mm_mask_roundscale_sd(__m128d old, __mmask8 k, __m128d a, __m128d b, const int imm);
Rounds the lower float64 element in a to the number of fraction bits specified by imm, stores the result in the lower destination element using writemask k (the element is copied from src when mask bit 0 is not set), and copies the upper element from b to the upper destination element.
_mm_maskz_roundscale_sd
extern __m128d __cdecl _mm_maskz_roundscale_sd(__mmask8 k, __m128d a, __m128d b, const int imm);
Rounds the lower float64 element in a to the number of fraction bits specified by imm, stores the result in the lower destination element using zeromask k (the element is zeroed out when mask bit 0 is not set), and copies the upper element from b to the upper destination element.
_mm_roundscale_round_ss
extern __m128 __cdecl _mm_roundscale_round_ss(__m128 a, __m128 b, const int imm, const int round);
Rounds the lower float32 element in a to the number of fraction bits specified by imm, stores the result in the lower destination element, and copies the upper three packed elements from b to the upper destination elements.
_mm_mask_roundscale_round_ss
extern __m128 __cdecl _mm_mask_roundscale_round_ss(__m128 src, __mmask8 k, __m128 a, __m128 b, const int imm, const int round);
Rounds the lower float32 element in a to the number of fraction bits specified by imm, stores the result in the lower destination element using writemask k (the element is copied from src when mask bit 0 is not set), and copies the upper three packed elements from b to the upper destination elements.
_mm_maskz_roundscale_round_ss
extern __m128 __cdecl _mm_maskz_roundscale_round_ss(__mmask8 k, __m128 a, __m128 b, const int imm, const int round);
Rounds the lower float32 element in a to the number of fraction bits specified by imm, stores the result in the lower destination element using zeromask k (the element is zeroed out when mask bit 0 is not set), and copies the upper three packed elements from b to the upper destination elements.
_mm_roundscale_ss
extern __m128 __cdecl _mm_roundscale_ss(__m128 a, __m128 b, const int imm);
Rounds the lower float32 element in a to the number of fraction bits specified by imm, stores the result in the lower destination element, and copies the upper three packed elements from b to the upper destination elements.
_mm_mask_roundscale_ss
extern __m128 __cdecl _mm_mask_roundscale_ss(__m128 src, __mmask8 k, __m128 a, __m128 b, const int imm);
Rounds the lower float32 element in a to the number of fraction bits specified by imm, stores the result in the lower destination element using writemask k (the element is copied from src when mask bit 0 is not set), and copies the upper three packed elements from b to the upper destination elements.
_mm_maskz_roundscale_ss
extern __m128 __cdecl _mm_maskz_roundscale_ss(__mmask8 k, __m128 a, __m128 b, const int imm);
Rounds the lower float32 element in a to the number of fraction bits specified by imm, stores the result in the lower destination element using zeromask k (the element is zeroed out when mask bit 0 is not set), and copies the upper three packed elements from b to the upper destination elements.
_mm512_scalef_pd
extern __m512d __cdecl _mm512_scalef_pd(__m512d a, __m512d b);
Performs a floating point scale of the packed float64 elements in source a by multiplying by 2b, and stores the result.
_mm512_mask_scalef_pd
extern __m512d __cdecl _mm512_mask_scalef_pd(__m512d src, __mmask8 k, __m512d a, __m512d b);
Performs a floating point scale of the packed float64 elements in source a by multiplying by 2b, and stores the result using writemask k (elements are copied from src when the corresponding mask bit is not set).
_mm512_maskz_scalef_pd
extern __m512d __cdecl _mm512_maskz_scalef_pd(__mmask8 k, __m512d a, __m512d b);
Performs a floating point scale of the packed float64 elements in source a by multiplying by 2b, and stores the result using zeromask k (elements are zeroed out when the corresponding mask bit is not set).
_mm512_scalef_round_pd
extern __m512d __cdecl _mm512_scalef_round_pd(__m512d a, __m512d b, int round);
Performs a floating point scale of the rounded packed float64 elements in source a by multiplying by 2b, and stores the result.
_mm512_mask_scalef_round_pd
extern __m512d __cdecl _mm512_mask_scalef_round_pd(__m512d src, __mmask8 k, __m512d a, __m512d b, int round);
Performs a floating point scale of the rounded packed float64 elements in source a by multiplying by 2b, and stores the result using writemask k (elements are copied from src when the corresponding mask bit is not set).
_mm512_maskz_scalef_round_pd
extern __m512d __cdecl _mm512_maskz_scalef_round_pd(__mmask8 k, __m512d a, __m512d b, int round);
Performs a floating point scale of the rounded packed float64 elements in source a by multiplying by 2b, and stores the result using zeromask k (elements are zeroed out when the corresponding mask bit is not set).
_mm512_scalef_ps
extern __m512 __cdecl _mm512_scalef_ps(__m512 a, __m512 b);
Performs a floating point scale of the packed float32 elements in source a by multiplying by 2b, and stores the result.
_mm512_mask_scalef_ps
extern __m512 __cdecl _mm512_mask_scalef_ps(__m512 src, __mmask16 k, __m512 a, __m512 b);
Performs a floating point scale of the packed float32 elements in source a by multiplying by 2b, and stores the result, using writemask k (elements are copied from src when the corresponding mask bit is not set).
_mm512_maskz_scalef_ps
extern __m512 __cdecl _mm512_maskz_scalef_ps(__mmask16 k, __m512 a, __m512 b);
Performs a floating point scale of the packed single-precision (64-bit) floating-point elements in source a by multiplying by 2b, and stores the result, using zeromask k (elements are zeroed out when the corresponding mask bit is not set).
_mm512_scalef_round_ps
extern __m512 __cdecl _mm512_scalef_round_ps(__m512 a, __m512 b, int round);
Performs a floating point scale of the rounded packed single-precision (64-bit) floating-point elements in source a by multiplying by 2b, and stores the results.
_mm512_mask_scalef_round_ps
extern __m512 __cdecl _mm512_mask_scalef_round_ps(__m512 src, __mmask16 k, __m512 a, __m512 b, int round);
Performs a floating point scale of the rounded packed single-precision (64-bit) floating-point elements in source a by multiplying by 2b, and stores the results, using writemask k (elements are copied from src when the corresponding mask bit is not set).
_mm512_maskz_scalef_round_ps
extern __m512 __cdecl _mm512_maskz_scalef_round_ps(__mmask16 k, __m512 a, __m512 b, int round);
Performs a floating point scale of the rounded packed single-precision (64-bit) floating-point elements in source a by multiplying by 2b, and stores the results, using zeromask k (elements are zeroed out when the corresponding mask bit is not set).
_mm_scalef_round_sd
extern __m128d __cdecl _mm_scalef_round_sd(__m128d a, __m128d b, int round);
Performs a floating point scale of the rounded scalar float64 elements in source a by multiplying by 2b, stores the result in the lower destination element, and copies the upper element from b to the upper destination element.
_mm_mask_scalef_round_sd
extern __m128d __cdecl _mm_mask_scalef_round_sd(__m128d src, __mmask8 k, __m128d a, __m128d b, int round);
Performs a floating point scale of the rounded scalar float64 elements in source a by multiplying by 2b, stores the result in the lower destination element using writemask k (the element is copied from src when mask bit 0 is not set), and copies the upper element from b to the upper destination element.
_mm_maskz_scalef_round_sd
extern __m128d __cdecl _mm_maskz_scalef_round_sd(__mmask8 k, __m128d a, __m128d b, int round);
Performs a floating point scale of the rounded scalar float64 elements in source a by multiplying by 2b, stores the result in the lower destination element using zeromask k (the element is zeroed out when mask bit 0 is not set), and copies the upper element from b to the upper destination element.
_mm_scalef_sd
extern __m128d __cdecl _mm_scalef_sd(__m128d a, __m128d b);
Performs a floating point scale of the scalar float64 elements in source a using values from b, stores the result in the lower destination element, and copies the upper element from b to the upper destination element.
_mm_mask_scalef_sd
extern __m128d __cdecl _mm_mask_scalef_sd(__m128d src, __mmask8 k, __m128d a, __m128d b);
Performs a floating point scale of the scalar float64 elements in source a using values from b, stores the result in the lower destination element using writemask k (the element is copied from src when mask bit 0 is not set), and copies the upper element from b to the upper destination element.
_mm_maskz_scalef_sd
extern __m128d __cdecl _mm_maskz_scalef_sd(__mmask8 k, __m128d a, __m128d b);
Performs a floating point scale of the scalar float64 elements in source a using values from b, stores the result in the lower destination element using zeromask k (the element is zeroed out when mask bit 0 is not set), and copies the upper element from b to the upper destination element.
_mm_scalef_round_ss
extern __m128 __cdecl _mm_scalef_round_ss(__m128 a, __m128 b, int round);
Performs a floating point scale of the rounded scalar float32 elements in source a by multiplying by 2b, stores the result in the lower destination element, and copies the upper element from b to the upper destination elements.
_mm_mask_scalef_round_ss
extern __m128 __cdecl _mm_mask_scalef_round_ss(__m128 src, __mmask8 k, __m128 a, __m128 b, int round);
Performs a floating point scale of the rounded scalar float32 elements in source a by multiplying by 2b, stores the result in the lower destination element using writemask k (the element is copied from src when mask bit 0 is not set), and copies the upper three packed elements from b to the upper destination elements.
_mm_maskz_scalef_round_ss
extern __m128 __cdecl _mm_maskz_scalef_round_ss(__mmask8 k, __m128 a, __m128 b, int round);
Performs a floating point scale of the rounded scalar float32 elements in source a by multiplying by 2b, stores the result in the lower destination element using zeromask k (the element is zeroed out when mask bit 0 is not set), and copies the upper three packed elements from b to the upper destination elements.
_mm_scalef_ss
extern __m128 __cdecl _mm_scalef_ss(__m128 a, __m128 b);
Performs a floating point scale of the scalar float32 elements in source a using values from b, stores the result in the lower destination element, and copies the upper three packed elements from b to the upper destination elements.
_mm_mask_scalef_ss
extern __m128 __cdecl _mm_mask_scalef_ss(__m128 src, __mmask8 k, __m128 a, __m128 b);
Performs a floating point scale of the scalar float32 elements in source a using values from b, stores the result in the lower destination element, using writemask k (the element is copied from src when mask bit 0 is not set), and copies the upper three packed elements from b to the upper destination elements.
_mm_maskz_scalef_ss
extern __m128 __cdecl _mm_maskz_scalef_ss(__mmask8 k, __m128 a, __m128 b);
Performs a floating point scale of the scalar float32 elements in source a using values from b, stores the result in the lower destination element, using zeromask k (the element is zeroed out when mask bit 0 is not set), and copies the upper three packed elements from b to the upper destination elements.