FCVT (widening) Multi-vector floating-point convert from half-precision to single-precision (in-order) Convert to single-precision from half-precision, each element of the source vector, and place the results in the double-width destination elements of the destination vectors. This instruction follows SME2 floating-point numerical behaviors corresponding to instructions that place their results in one or more SVE Z vectors. This instruction is unpredicated. ID_AA64SMFR0_EL1.F16F16 indicates whether this instruction is implemented. Green False SM_1_only 1 1 0 0 0 0 0 1 1 0 1 0 0 0 0 0 1 1 1 0 0 0 0 FCVT { <Zd1>.S-<Zd2>.S }, <Zn>.H if !IsFeatureImplemented(FEAT_SME_F16F16) then UNDEFINED; constant integer n = UInt(Zn); constant integer d = UInt(Zd:'0'); <Zd1> Is the name of the first scalable vector register of the destination multi-vector group, encoded as "Zd" times 2. <Zd2> Is the name of the second scalable vector register of the destination multi-vector group, encoded as "Zd" times 2 plus 1. <Zn> Is the name of the source scalable vector register, encoded in the "Zn" field. CheckStreamingSVEEnabled(); constant integer VL = CurrentVL; constant integer elements = VL DIV 16; constant bits(VL) operand = Z[n, VL]; bits(2*VL) result; for e = 0 to elements-1 constant bits(16) element = Elem[operand, e, 16]; constant bits(32) res = FPConvertSVE(element, FPCR, 32); Elem[result, e, 32] = res; Z[d+0, VL] = result<VL-1:0>; Z[d+1, VL] = result<2*VL-1:VL>;