BFMAX BFloat16 floating-point maximum (predicated) Determine the maximum of active BFloat16 elements of the second source vector and corresponding BFloat16 elements of the first source vector and destructively place the results in the corresponding elements of the first source vector. When FPCR.AH is 0, the behavior is as follows: Negative zero compares less than positive zero. When FPCR.DN is 0, if either element is a NaN, the result is a quiet NaN. When FPCR.DN is 1, if either element is a NaN, the result is Default NaN. When FPCR.AH is 1, the behavior is as follows: If both elements are zeros, regardless of the sign of either zero, the result is the second element. If either element is a NaN, regardless of the value of FPCR.DN, the result is the second element. Inactive elements in the destination vector register remain unmodified. This instruction follows SVE2 non-widening BFloat16 numerical behaviors. ID_AA64ZFR0_EL1.B16B16 indicates whether this instruction is implemented. Green True True True 0 1 1 0 0 1 0 1 0 0 0 0 0 1 1 0 1 0 0 BFMAX <Zdn>.H, <Pg>/M, <Zdn>.H, <Zm>.H if !IsFeatureImplemented(FEAT_SVE_B16B16) then UNDEFINED; constant integer g = UInt(Pg); constant integer dn = UInt(Zdn); constant integer m = UInt(Zm); <Zdn> Is the name of the first source and destination scalable vector register, encoded in the "Zdn" field. <Pg> Is the name of the governing scalable predicate register P0-P7, encoded in the "Pg" field. <Zm> Is the name of the second source scalable vector register, encoded in the "Zm" field. CheckSVEEnabled(); constant integer VL = CurrentVL; constant integer PL = VL DIV 8; constant integer elements = VL DIV 16; constant bits(PL) mask = P[g, PL]; constant bits(VL) operand1 = Z[dn, VL]; constant bits(VL) operand2 = if AnyActiveElement(mask, 16) then Z[m, VL] else Zeros(VL); bits(VL) result; for e = 0 to elements-1 constant bits(16) element1 = Elem[operand1, e, 16]; if ActivePredicateElement(mask, e, 16) then constant bits(16) element2 = Elem[operand2, e, 16]; Elem[result, e, 16] = BFMax(element1, element2, FPCR); else Elem[result, e, 16] = element1; Z[dn, VL] = result;