FMMLA (widening, half-precision to single-precision)

Half-precision matrix multiply-accumulate to single-precision

This instruction multipliesperforms two fused sums-of-products within each two pairs of adjacent half-precision elements while multiplying the 2×42x4 matrix of half-precision values held in the first source vector by the 4×24x2 matrix of half-precision values in the second source vector. The intermediate single-precision resultssums-of-products are calculatedrounded as a sum of two fused sum-of-products usingbefore twothey pairsare ofsummed, adjacentand half-precisiontheir valuesintermediate fromsum eachis of the source vectors, and rounded before accumulation into the 2×22x2 matrix of single-precision resultsmatrix in the destination vector. This is equivalent equivalent to performing a 4-way dot product per destination element.

Advanced SIMD
(FEAT_F16F32MM)

Decode for this encoding

if !IsFeatureImplemented(FEAT_F16F32MM) then EndOfDecode(Decode_UNDEF); end; let d : integer{} = UInt(Rd); let n : integer{} = UInt(Rn); let m : integer{} = UInt(Rm);