BRKN Propagate break to next partition If the last active element of the first source predicate is false then set the destination predicate to all-false. Otherwise leaves the destination and second source predicate unchanged. Does not set the condition flags. Green True 0 0 1 0 0 1 0 1 0 0 0 1 1 0 0 0 0 1 0 0 BRKN <Pdm>.B, <Pg>/Z, <Pn>.B, <Pdm>.B if !IsFeatureImplemented(FEAT_SVE) && !IsFeatureImplemented(FEAT_SME) then UNDEFINED; constant integer g = UInt(Pg); constant integer n = UInt(Pn); constant integer dm = UInt(Pdm); constant boolean setflags = FALSE; <Pdm> Is the name of the second source and destination scalable predicate register, encoded in the "Pdm" field. <Pg> Is the name of the governing scalable predicate register, encoded in the "Pg" field. <Pn> Is the name of the first source scalable predicate register, encoded in the "Pn" field. CheckSVEEnabled(); constant integer VL = CurrentVL; constant integer PL = VL DIV 8; constant bits(PL) mask = P[g, PL]; constant bits(PL) operand1 = P[n, PL]; constant bits(PL) operand2 = P[dm, PL]; bits(PL) result; if LastActive(mask, operand1, 8) == '1' then result = operand2; else result = Zeros(PL); if setflags then PSTATE.<N,Z,C,V> = PredTest(Ones(PL), result, 8); P[dm, PL] = result;