모두의 코드
VFMSUB132PD, VFMSUB213PD, VFMSUB231PDs (Intel x86/64 assembly instruction)
VFMSUB132PD, VFMSUB213PD, VFMSUB231PD
Fused Multiply-Subtract of Packed Double-Precision Floating-Point Values
참고 사항
아래 표를 해석하는 방법은 x86-64 명령어 레퍼런스 읽는 법 글을 참조하시기 바랍니다.
Opcode/ | Op/ | 64/32 | CPUID | Description |
---|---|---|---|---|
| RVM | V/V | FMA | Multiply packed double-precision floating-point values from xmm1 and xmm3/mem, subtract xmm2 and put result in xmm1. |
| RVM | V/V | FMA | Multiply packed double-precision floating-point values from xmm1 and xmm2, subtract xmm3/mem and put result in xmm1. |
| RVM | V/V | FMA | Multiply packed double-precision floating-point values from xmm2 and xmm3/mem, subtract xmm1 and put result in xmm1. |
| RVM | V/V | FMA | Multiply packed double-precision floating-point values from ymm1 and ymm3/mem, subtract ymm2 and put result in ymm1. |
| RVM | V/V | FMA | Multiply packed double-precision floating-point values from ymm1 and ymm2, subtract ymm3/mem and put result in ymm1. |
| RVM | V/V | FMA | Multiply packed double-precision floating-point values from ymm2 and ymm3/mem, subtract ymm1 and put result in ymm1.S |
| FV | V/V | AVX512VL | Multiply packed double-precision floating-point values from xmm1 and xmm3/m128/m64bcst, subtract xmm2 and put result in xmm1 subject to writemask k1. |
| FV | V/V | AVX512VL | Multiply packed double-precision floating-point values from xmm1 and xmm2, subtract xmm3/m128/m64bcst and put result in xmm1 subject to writemask k1. |
| FV | V/V | AVX512VL | Multiply packed double-precision floating-point values from xmm2 and xmm3/m128/m64bcst, subtract xmm1 and put result in xmm1 subject to writemask k1. |
| FV | V/V | AVX512VL | Multiply packed double-precision floating-point values from ymm1 and ymm3/m256/m64bcst, subtract ymm2 and put result in ymm1 subject to writemask k1. |
| FV | V/V | AVX512VL | Multiply packed double-precision floating-point values from ymm1 and ymm2, subtract ymm3/m256/m64bcst and put result in ymm1 subject to writemask k1. |
| FV | V/V | AVX512VL | Multiply packed double-precision floating-point values from ymm2 and ymm3/m256/m64bcst, subtract ymm1 and put result in ymm1 subject to writemask k1. |
| FV | V/V | AVX512F | Multiply packed double-precision floating-point values from zmm1 and zmm3/m512/m64bcst, subtract zmm2 and put result in zmm1 subject to writemask k1. |
| FV | V/V | AVX512F | Multiply packed double-precision floating-point values from zmm1 and zmm2, subtract zmm3/m512/m64bcst and put result in zmm1 subject to writemask k1. |
| FV | V/V | AVX512F | Multiply packed double-precision floating-point values from zmm2 and zmm3/m512/m64bcst, subtract zmm1 and put result in zmm1 subject to writemask k1. |
Instruction Operand Encoding
Op/En | Operand 1 | Operand 2 | Operand 3 | Operand 4 |
---|---|---|---|---|
RVM | ModRM:reg (r, w) | VEX.vvvv (r) | ModRM:r/m (r) | NA |
FV | ModRM:reg (r, w) | EVEX.vvvv (r) | ModRM:r/m (r) | NA |
Description
Performs a set of SIMD multiply-subtract computation on packed double-precision floating-point values using three source operands and writes the multiply-subtract results in the destination operand. The destination operand is also the first source operand. The second operand must be a SIMD register. The third source operand can be a SIMD register or a memory location.
VFMSUB132PD: Multiplies the two, four or eight packed double-precision floating-point values from the first source operand to the two, four or eight packed double-precision floating-point values in the third source operand. From the infinite precision intermediate result, subtracts the two, four or eight packed double-precision floating-point values in the second source operand, performs rounding and stores the resulting two, four or eight packed double-precision floating-point values to the destination operand (first source operand).
VFMSUB213PD: Multiplies the two, four or eight packed double-precision floating-point values from the second source operand to the two, four or eight packed double-precision floating-point values in the first source operand. From the infinite precision intermediate result, subtracts the two, four or eight packed double-precision floating-point values in the third source operand, performs rounding and stores the resulting two, four or eight packed double-precision floating-point values to the destination operand (first source operand).
VFMSUB231PD: Multiplies the two, four or eight packed double-precision floating-point values from the second source to the two, four or eight packed double-precision floating-point values in the third source operand. From the infinite precision intermediate result, subtracts the two, four or eight packed double-precision floating-point values in the first source operand, performs rounding and stores the resulting two, four or eight packed double-precision floating-point values to the destination operand (first source operand).
EVEX encoded versions: The destination operand (also first source operand) and the second source operand are ZMM/YMM/XMM register. The third source operand is a ZMM/YMM/XMM register, a 512/256/128-bit memory loca-tion or a 512/256/128-bit vector broadcasted from a 64-bit memory location. The destination operand is condition-ally updated with write mask k1.
VEX.256 encoded version: The destination operand (also first source operand) is a YMM register and encoded in regfield. The second source operand is a YMM register and encoded in VEX.vvvv. The third source operand is a YMM register or a 256-bit memory location and encoded in rmfield.
VEX.128 encoded version: The destination operand (also first source operand) is a XMM register and encoded in regfield. The second source operand is a XMM register and encoded in VEX.vvvv. The third source operand is a XMM register or a 128-bit memory location and encoded in rmfield. The upper 128 bits of the YMM destination register are zeroed.
Operation
VFMSUB132PD DEST, SRC2, SRC3 (VEX encoded versions)
IF (VEX.128) THEN MAXNUM <- 2 ELSEIF (VEX.256) MAXNUM <- 4 FI For i = 0 to MAXNUM-1 { n <- 64*i; DEST[n+63:n] <- RoundFPControl_MXCSR(DEST[n+63:n]*SRC3[n+63:n] - SRC2[n+63:n]) } IF (VEX.128) THEN DEST[MAX_VL-1:128] <- 0 ELSEIF (VEX.256) DEST[MAX_VL-1:256] <- 0 FI
VFMSUB213PD DEST, SRC2, SRC3 (VEX encoded versions)
IF (VEX.128) THEN MAXNUM <- 2 ELSEIF (VEX.256) MAXNUM <- 4 FI For i = 0 to MAXNUM-1 { n <- 64*i; DEST[n+63:n] <- RoundFPControl_MXCSR(SRC2[n+63:n]*DEST[n+63:n] - SRC3[n+63:n]) } IF (VEX.128) THEN DEST[MAX_VL-1:128] <- 0 ELSEIF (VEX.256) DEST[MAX_VL-1:256] <- 0 FI
VFMSUB231PD DEST, SRC2, SRC3 (VEX encoded versions)
IF (VEX.128) THEN MAXNUM <- 2 ELSEIF (VEX.256) MAXNUM <- 4 FI For i = 0 to MAXNUM-1 { n <- 64*i; DEST[n+63:n] <- RoundFPControl_MXCSR(SRC2[n+63:n]*SRC3[n+63:n] - DEST[n+63:n]) } IF (VEX.128) THEN DEST[MAX_VL-1:128] <- 0 ELSEIF (VEX.256) DEST[MAX_VL-1:256] <- 0 FI
VFMSUB132PD DEST, SRC2, SRC3 (EVEX encoded versions, when src3 operand is a register)
(KL, VL) = (2, 128), (4, 256), (8, 512) IF (VL = 512) AND (EVEX.b = 1) THEN SET_RM(EVEX.RC); ELSE SET_RM(MXCSR.RM); FI; FOR j <- 0 TO KL-1 i <- j * 64 IF k1[j] OR *no writemask* THEN DEST[i+63:i] <- RoundFPControl(DEST[i+63:i]*SRC3[i+63:i] - SRC2[i+63:i]) ELSE IF *merging-masking* ; merging-masking THEN *DEST[i+63:i] remains unchanged* ELSE ; zeroing-masking DEST[i+63:i] <- 0 FI FI; ENDFOR DEST[MAX_VL-1:VL] <- 0
VFMSUB132PD DEST, SRC2, SRC3 (EVEX encoded versions, when src3 operand is a memory source)
(KL, VL) = (2, 128), (4, 256), (8, 512) FOR j <- 0 TO KL-1 i <- j * 64 IF k1[j] OR *no writemask* THEN IF (EVEX.b = 1) THEN DEST[i+63:i] <- RoundFPControl_MXCSR(DEST[i+63:i]*SRC3[63:0] - SRC2[i+63:i]) ELSE DEST[i+63:i] <- RoundFPControl_MXCSR(DEST[i+63:i]*SRC3[i+63:i] - SRC2[i+63:i]) FI; ELSE IF *merging-masking* ; merging-masking THEN *DEST[i+63:i] remains unchanged* ELSE ; zeroing-masking DEST[i+63:i] <- 0 FI FI; ENDFOR DEST[MAX_VL-1:VL] <- 0
VFMSUB213PD DEST, SRC2, SRC3 (EVEX encoded versions, when src3 operand is a register)
(KL, VL) = (2, 128), (4, 256), (8, 512) IF (VL = 512) AND (EVEX.b = 1) THEN SET_RM(EVEX.RC); ELSE SET_RM(MXCSR.RM); FI; FOR j <- 0 TO KL-1 i <- j * 64 IF k1[j] OR *no writemask* THEN DEST[i+63:i] <- RoundFPControl(SRC2[i+63:i]*DEST[i+63:i] - SRC3[i+63:i]) ELSE IF *merging-masking* ; merging-masking THEN *DEST[i+63:i] remains unchanged* ELSE ; zeroing-masking DEST[i+63:i] <- 0 FI FI; ENDFOR DEST[MAX_VL-1:VL] <- 0
VFMSUB213PD DEST, SRC2, SRC3 (EVEX encoded versions, when src3 operand is a memory source)
(KL, VL) = (2, 128), (4, 256), (8, 512) FOR j <- 0 TO KL-1 i <- j * 64 IF k1[j] OR *no writemask* THEN IF (EVEX.b = 1) THEN DEST[i+63:i] <- RoundFPControl_MXCSR(SRC2[i+63:i]*DEST[i+63:i] - SRC3[63:0]) +31:i]) ELSE DEST[i+63:i] <- RoundFPControl_MXCSR(SRC2[i+63:i]*DEST[i+63:i] - SRC3[i+63:i]) FI; ELSE IF *merging-masking* ; merging-masking THEN *DEST[i+63:i] remains unchanged* ELSE ; zeroing-masking DEST[i+63:i] <- 0 FI FI; ENDFOR DEST[MAX_VL-1:VL] <- 0
VFMSUB231PD DEST, SRC2, SRC3 (EVEX encoded versions, when src3 operand is a register)
(KL, VL) = (2, 128), (4, 256), (8, 512) IF (VL = 512) AND (EVEX.b = 1) THEN SET_RM(EVEX.RC); ELSE SET_RM(MXCSR.RM); FI; FOR j <- 0 TO KL-1 i <- j * 64 IF k1[j] OR *no writemask* THEN DEST[i+63:i] <- RoundFPControl(SRC2[i+63:i]*SRC3[i+63:i] - DEST[i+63:i]) ELSE IF *merging-masking* ; merging-masking THEN *DEST[i+63:i] remains unchanged* ELSE ; zeroing-masking DEST[i+63:i] <- 0 FI FI; ENDFOR DEST[MAX_VL-1:VL] <- 0
VFMSUB231PD DEST, SRC2, SRC3 (EVEX encoded versions, when src3 operand is a memory source)
(KL, VL) = (2, 128), (4, 256), (8, 512) FOR j <- 0 TO KL-1 i <- j * 64 IF k1[j] OR *no writemask* THEN IF (EVEX.b = 1) THEN DEST[i+63:i] <- RoundFPControl_MXCSR(SRC2[i+63:i]*SRC3[63:0] - DEST[i+63:i]) ELSE DEST[i+63:i] <- RoundFPControl_MXCSR(SRC2[i+63:i]*SRC3[i+63:i] - DEST[i+63:i]) FI; ELSE IF *merging-masking* ; merging-masking THEN *DEST[i+63:i] remains unchanged* ELSE ; zeroing-masking DEST[i+63:i] <- 0 FI FI; ENDFOR DEST[MAX_VL-1:VL] <- 0
Intel C/C++ Compiler Intrinsic Equivalent
VFMSUBxxxPD __m512d _mm512_fmsub_pd(__m512d a, __m512d b, __m512d c); VFMSUBxxxPD __m512d _mm512_fmsub_round_pd(__m512d a, __m512d b, __m512d c, int r); VFMSUBxxxPD __m512d _mm512_mask_fmsub_pd(__m512d a, __mmask8 k, __m512d b, __m512d c); VFMSUBxxxPD __m512d _mm512_maskz_fmsub_pd(__mmask8 k, __m512d a, __m512d b, __m512d c); VFMSUBxxxPD __m512d _mm512_mask3_fmsub_pd(__m512d a, __m512d b, __m512d c, __mmask8 k); VFMSUBxxxPD __m512d _mm512_mask_fmsub_round_pd(__m512d a, __mmask8 k, __m512d b, __m512d c, int r); VFMSUBxxxPD __m512d _mm512_maskz_fmsub_round_pd(__mmask8 k, __m512d a, __m512d b, __m512d c, int r); VFMSUBxxxPD __m512d _mm512_mask3_fmsub_round_pd(__m512d a, __m512d b, __m512d c, __mmask8 k, int r); VFMSUBxxxPD __m256d _mm256_mask_fmsub_pd(__m256d a, __mmask8 k, __m256d b, __m256d c); VFMSUBxxxPD __m256d _mm256_maskz_fmsub_pd(__mmask8 k, __m256d a, __m256d b, __m256d c); VFMSUBxxxPD __m256d _mm256_mask3_fmsub_pd(__m256d a, __m256d b, __m256d c, __mmask8 k); VFMSUBxxxPD __m128d _mm_mask_fmsub_pd(__m128d a, __mmask8 k, __m128d b, __m128d c); VFMSUBxxxPD __m128d _mm_maskz_fmsub_pd(__mmask8 k, __m128d a, __m128d b, __m128d c); VFMSUBxxxPD __m128d _mm_mask3_fmsub_pd(__m128d a, __m128d b, __m128d c, __mmask8 k); VFMSUBxxxPD __m128d _mm_fmsub_pd(__m128d a, __m128d b, __m128d c); VFMSUBxxxPD __m256d _mm256_fmsub_pd(__m256d a, __m256d b, __m256d c);
SIMD Floating-Point Exceptions
Overflow, Underflow, Invalid, Precision, Denormal
Other Exceptions
VEX-encoded instructions, see Exceptions Type 2.
EVEX-encoded instructions, see Exceptions Type E2.
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