INDEX (immediates) Create index starting from and incremented by immediate Populates the destination vector by setting the first element to the first signed immediate integer operand and monotonically incrementing the value by the second signed immediate integer operand for each subsequent element. This instruction is unpredicated. Green False True 0 0 0 0 0 1 0 0 1 0 1 0 0 0 0 INDEX <Zd>.<T>, #<imm1>, #<imm2> if !IsFeatureImplemented(FEAT_SVE) && !IsFeatureImplemented(FEAT_SME) then UNDEFINED; constant integer esize = 8 << UInt(size); constant integer d = UInt(Zd); constant integer imm1 = SInt(imm5); constant integer imm2 = SInt(imm5b); <Zd> Is the name of the destination scalable vector register, encoded in the "Zd" field. <T> Is the size specifier, size <T> 00 B 01 H 10 S 11 D <imm1> Is the first signed immediate operand, in the range -16 to 15, encoded in the "imm5" field. <imm2> Is the second signed immediate operand, in the range -16 to 15, encoded in the "imm5b" field. CheckSVEEnabled(); constant integer VL = CurrentVL; constant integer PL = VL DIV 8; constant integer elements = VL DIV esize; bits(VL) result; for e = 0 to elements-1 constant integer index = imm1 + e * imm2; Elem[result, e, esize] = index<esize-1:0>; Z[d, VL] = result;