Set all predicate elements to false
Set all elements in the destination predicate to false.
For programmer convenience, an assembler must also accept predicate-as-counter register name for the destination predicate register.
| 31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
| 0 | 0 | 1 | 0 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | Pd | |||
| S | |||||||||||||||||||||||||||||||
PFALSE <Pd>.B
if !IsFeatureImplemented(FEAT_SVE) && !IsFeatureImplemented(FEAT_SME) then UNDEFINED; constant integer d = UInt(Pd);
CheckSVEEnabled(); constant integer VL = CurrentVL; constant integer PL = VL DIV 8; P[d, PL] = Zeros(PL);
If FEAT_SVE2 is implemented or FEAT_SME is implemented, then if PSTATE.DIT is 1: