FMLALT (indexed, FP16 to FP32)

Half-precision floating-point multiply-add long to single-precision (top, indexed)

This half-precision floating-point multiply-add long instruction widens the odd-numbered half-precision elements in the first source vector and the indexed element from the corresponding 128-bit segment in the second source vector to single-precision format and then destructively multiplies and adds these values without intermediate rounding to the single-precision elements of the destination vector that overlap with the corresponding half-precision elements in the first source vector. This instruction is unpredicated.

if !IsFeatureImplemented(FEAT_SVE2) && !IsFeatureImplemented(FEAT_SME) then UNDEFINED; constant integer esize = 32; constant integer n = UInt(Zn); constant integer m = UInt(Zm); constant integer da = UInt(Zda); constant integer index = UInt(i3h:i3l); constant boolean op1_neg = FALSE;