DCPS2 Debug change PE state to EL2 This instruction, 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 always UNDEFINED in Non-debug state. 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. 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>} // Empty. <imm> Is an optional 16-bit unsigned immediate, in the range 0 to 65535, defaulting to 0 and encoded in the "imm16" field. if !Halted() then Undefined(); end; DCPSInstruction(EL2); 2026-03-12 12:23:09 2025-09_rel_asl1