XAFLAG

Convert floating-point condition flags from external format to Arm format. This instruction converts the state of the PSTATE.{N,Z,C,V} flags from an alternative representation required by some software to a form representing the result of an Arm floating-point scalar compare instruction.

System
(FEAT_FlagM2)

313029282726252423222120191817161514131211109876543210
11010101000000000100(0)(0)(0)(0)00111111
op1CRmop2Rt

XAFLAG

if !IsFeatureImplemented(FEAT_FlagM2) then UNDEFINED;

Operation

bit n = NOT(PSTATE.C) AND NOT(PSTATE.Z); bit z = PSTATE.Z AND PSTATE.C; bit c = PSTATE.C OR PSTATE.Z; bit v = NOT(PSTATE.C) AND PSTATE.Z; PSTATE.N = n; PSTATE.Z = z; PSTATE.C = c; PSTATE.V = v;


Internal version only: aarchmrs v2023-12_rel, pseudocode v2023-12_rel, sve v2023-12_rel ; Build timestamp: 2023-12-15T16:46

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