FDOT (half-precision to single-precision, by element)

Half-precision dot product to single-precision (vector, by element)

This instruction calculates the fused sum-of-products of a pair of half-precision values held in each 32-bit element of the first source vector and a pair of half-precision values held in an indexed 32-bit element of the second source vector, without intermediate rounding, and then destructively adds the single-precision sum-of-products to the corresponding single-precision element of the destination vector.

Advanced SIMD
(FEAT_F16F32DOT)

Decode for this encoding

if !IsFeatureImplemented(FEAT_F16F32DOT) then EndOfDecode(Decode_UNDEF); end; let n : integer = UInt(Rn); let m : integer = UInt(M::Rm); let d : integer = UInt(Rd); let i : integer = UInt(H::L); let datasize : integer{} = 64 << UInt(Q); let elements : integer = datasize DIV 32;