UMAXV Unsigned maximum reduction to scalar Unsigned maximum horizontally across all lanes of a vector, and place the result in the SIMD&FP scalar destination register. Inactive elements in the source vector are treated as zero. Green True True 0 0 0 0 0 1 0 0 0 0 1 0 0 1 0 0 1 UMAXV <V><d>, <Pg>, <Zn>.<T> if !IsFeatureImplemented(FEAT_SVE) && !IsFeatureImplemented(FEAT_SME) then UNDEFINED; constant integer esize = 8 << UInt(size); constant integer g = UInt(Pg); constant integer n = UInt(Zn); constant integer d = UInt(Vd); constant boolean unsigned = TRUE; <V> Is a width specifier, size <V> 00 B 01 H 10 S 11 D <d> Is the number [0-31] of the destination SIMD&FP register, encoded in the "Vd" field. <Pg> Is the name of the governing scalable predicate register P0-P7, encoded in the "Pg" field. <Zn> Is the name of the source scalable vector register, encoded in the "Zn" field. <T> Is the size specifier, size <T> 00 B 01 H 10 S 11 D CheckSVEEnabled(); constant integer VL = CurrentVL; constant integer PL = VL DIV 8; constant integer elements = VL DIV esize; constant bits(PL) mask = P[g, PL]; constant bits(VL) operand = if AnyActiveElement(mask, esize) then Z[n, VL] else Zeros(VL); integer maximum = if unsigned then 0 else -(2^(esize-1)); for e = 0 to elements-1 if ActivePredicateElement(mask, e, esize) then constant integer element = Int(Elem[operand, e, esize], unsigned); maximum = Max(maximum, element); V[d, esize] = maximum<esize-1:0>;