SETFFR Initialise the first-fault register to all true Initialise the first-fault register (FFR) to all true prior to a sequence of first-fault or non-fault loads. This instruction is unpredicated. This instruction is illegal when executed in Streaming SVE mode, unless FEAT_SME_FA64 is implemented and enabled. Green False True SM_0_only 0 0 1 0 0 1 0 1 0 0 1 0 1 1 0 0 1 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 SETFFR if !IsFeatureImplemented(FEAT_SVE) then UNDEFINED; CheckNonStreamingSVEEnabled(); constant integer VL = CurrentVL; constant integer PL = VL DIV 8; FFR[PL] = Ones(PL);