16.94 MSR (immediate)
Move immediate value to Special Register.
Is a PSTATE field name, and can be one of
Is a 4-bit unsigned immediate, in the range 0 to 15.
Move immediate value to Special Register moves an immediate value to selected bits of the PSTATE, namely D, A, I, F, and SP. For more information, see Process state, PSTATE in the ARMv8-A Architecture Reference Manual.