PTRUE (predicate as counter) Initialise predicate-as-counter to all active Set the destination predicate as all-active elements, using the predicate-as-counter encoding. Green False True 0 0 1 0 0 1 0 1 1 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 0 1 0 PTRUE <PNd>.<T> if !IsFeatureImplemented(FEAT_SME2) && !IsFeatureImplemented(FEAT_SVE2p1) then UNDEFINED; constant integer esize = 8 << UInt(size); constant integer d = UInt('1':PNd); <PNd> Is the name of the destination scalable predicate register PN8-PN15, with predicate-as-counter encoding, encoded in the "PNd" field. <T> Is the size specifier, size <T> 00 B 01 H 10 S 11 D if IsFeatureImplemented(FEAT_SVE2p1) then CheckSVEEnabled(); else CheckStreamingSVEEnabled(); constant integer VL = CurrentVL; constant integer PL = VL DIV 8; constant integer elements = VL DIV esize; constant bits(PL) result = EncodePredCount(esize, elements, elements, FALSE, PL); P[d, PL] = result;