Intel® Architecture Instruction Set Extensions Programming Reference

Operation
INSTRUCTION SET REFERENCE - FMA
In the operations below, "+", "-", and "*" symbols represent addition, subtraction, and multiplication operations
with infinite precision inputs and outputs (no rounding).
VFMSUB132SD DEST, SRC2, SRC3
DEST[63:0] RoundFPControl_MXCSR(DEST[63:0]*SRC3[63:0] - SRC2[63:0])
DEST[127:64] DEST[127:64]
DEST[VLMAX-1:128] 0
VFMSUB213SD DEST, SRC2, SRC3
DEST[63:0] RoundFPControl_MXCSR(SRC2[63:0]*DEST[63:0] - SRC3[63:0])
DEST[127:64] DEST[127:64]
DEST[VLMAX-1:128] 0
VFMSUB231SD DEST, SRC2, SRC3
DEST[63:0] RoundFPControl_MXCSR(SRC2[63:0]*SRC3[63:0] - DEST[63:0])
DEST[127:64] DEST[127:64]
DEST[VLMAX-1:128] 0
Intel C/C++ Compiler Intrinsic Equivalent
VFMSUB132SD: __m128d _mm_fmsub_sd (__m128d a, __m128d b, __m128d c);
VFMSUB213SD: __m128d _mm_fmsub_sd (__m128d a, __m128d b, __m128d c);
VFMSUB231SD: __m128d _mm_fmsub_sd (__m128d a, __m128d b, __m128d c);
SIMD Floating-Point Exceptions
Overflow, Underflow, Invalid, Precision, Denormal
Other Exceptions
See Exceptions Type 3
Ref. # 319433-014 6-31