UQXTNB Unsigned saturating extract narrow (bottom) Saturate the unsigned integer value in each source element to half the original source element width, and place the results in the even-numbered half-width destination elements, while setting the odd-numbered elements to zero. Green False 0 1 0 0 0 1 0 1 0 1 0 0 0 0 1 0 0 1 0 UQXTNB <Zd>.<T>, <Zn>.<Tb> if !IsFeatureImplemented(FEAT_SVE2) && !IsFeatureImplemented(FEAT_SME) then UNDEFINED; constant bits(3) tsize = tszh:tszl; if !(tsize IN {'001', '010', '100'}) then UNDEFINED; constant integer esize = 16 << HighestSetBitNZ(tsize); constant integer n = UInt(Zn); constant integer d = UInt(Zd); <Zd> Is the name of the destination scalable vector register, encoded in the "Zd" field. <T> Is the size specifier, tszh tszl <T> 0 00 RESERVED 0 01 B 0 10 H x 11 RESERVED 1 00 S 1 01 RESERVED 1 10 RESERVED <Zn> Is the name of the source scalable vector register, encoded in the "Zn" field. <Tb> Is the size specifier, tszh tszl <Tb> 0 00 RESERVED 0 01 H 0 10 S x 11 RESERVED 1 00 D 1 01 RESERVED 1 10 RESERVED CheckSVEEnabled(); constant integer VL = CurrentVL; constant integer PL = VL DIV 8; constant integer elements = VL DIV esize; constant bits(VL) operand1 = Z[n, VL]; bits(VL) result; constant integer halfesize = esize DIV 2; for e = 0 to elements-1 constant integer element1 = UInt(Elem[operand1, e, esize]); constant bits(halfesize) res = UnsignedSat(element1, halfesize); Elem[result, 2*e + 0, halfesize] = res; Elem[result, 2*e + 1, halfesize] = Zeros(halfesize); Z[d, VL] = result;