DCPS2 Debug Change PE State to EL2. Debug Change PE State to EL2, when executed in Debug state: If executed at EL0 or EL1 changes the current Exception level and SP to EL2 using SP_EL2. Otherwise, if executed at ELx, selects SP_ELx. The target exception level of a DCPS2 instruction is: EL2 if the instruction is executed at an exception level that is not EL3. EL3 if the instruction is executed at EL3. When the target Exception level of a DCPS2 instruction is ELx, on executing this instruction: ELR_ELx becomes unknown. SPSR_ELx becomes unknown. ESR_ELx becomes unknown. DLR_EL0 and DSPSR_EL0 become unknown. The endianness is set according to SCTLR_ELx.EE. This instruction is undefined at the following exception levels: All exception levels if EL2 is not implemented. At EL0 and EL1 if EL2 is disabled in the current Security state. This instruction is always undefined in Non-debug state. For more information on the operation of the DCPS<n> instructions, see DCPS. 1 1 0 1 0 1 0 0 1 0 1 0 0 0 1 0 DCPS2 {#<imm>} bits(2) target_level = LL; if LL == '00' then UNDEFINED; if !Halted() then UNDEFINED; <imm> Is an optional 16-bit unsigned immediate, in the range 0 to 65535, defaulting to 0 and encoded in the "imm16" field. DCPSInstruction(target_level);