BRKAS Break after first true condition, setting the condition flags Sets destination predicate elements up to and including the first active and true source element to true, then sets subsequent elements to false. Inactive elements in the destination predicate register are set to zero. Sets the First (N), None (Z), !Last (C) condition flags based on the predicate result, and the V flag to zero. Green True 0 0 1 0 0 1 0 1 0 1 0 1 0 0 0 0 0 1 0 0 BRKAS <Pd>.B, <Pg>/Z, <Pn>.B if !IsFeatureImplemented(FEAT_SVE) && !IsFeatureImplemented(FEAT_SME) then UNDEFINED; constant integer esize = 8; constant integer g = UInt(Pg); constant integer n = UInt(Pn); constant integer d = UInt(Pd); constant boolean merging = FALSE; constant boolean setflags = TRUE; <Pd> Is the name of the destination scalable predicate register, encoded in the "Pd" field. <Pg> Is the name of the governing scalable predicate register, encoded in the "Pg" field. <Pn> Is the name of the source scalable predicate register, encoded in the "Pn" field. 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(PL) operand = P[n, PL]; constant bits(PL) operand2 = if merging then P[d, PL] else Zeros(PL); boolean break = FALSE; bits(PL) result; constant integer psize = esize DIV 8; for e = 0 to elements-1 constant boolean element = ActivePredicateElement(operand, e, esize); if ActivePredicateElement(mask, e, esize) then constant bit pbit = if !break then '1' else '0'; Elem[result, e, psize] = ZeroExtend(pbit, psize); break = break || element; elsif merging then constant bit pbit = PredicateElement(operand2, e, esize); Elem[result, e, psize] = ZeroExtend(pbit, psize); else Elem[result, e, psize] = ZeroExtend('0', psize); if setflags then PSTATE.<N,Z,C,V> = PredTest(mask, result, esize); P[d, PL] = result;