DCPS1 Debug change PE state to EL1 This instruction, when executed in Debug state: If executed at EL0, changes the current Exception level and SP to EL1 using SP_EL1. Otherwise, if executed at ELx, selects SP_ELx. The target exception level of a DCPS1 instruction is: EL1 if the instruction is executed at EL0. Otherwise, the Exception level at which the instruction is executed. When the target Exception level of a DCPS1 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 EL0 in Non-secure state if EL2 is implemented and HCR_EL2.TGE == 1. 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 0 1 DCPS1 {#<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; DCPSInstruction(EL1);