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DCPS3 (T32 instruction)

Debug switch to exception level 3.


This instruction is supported only in Arm®v8.




This instruction is valid in Debug state only, and is always UNDEFINED in Non-debug state.

DCPS3 targets EL3 and:

  • If EL3 is using AArch32, the PE enters Monitor mode.
  • If EL3 is using AArch64, the PE enters EL3h, and executes future instructions as A64 instructions.

In Non-debug state, use the SMC instruction to generate a trap to EL3.


This 32-bit instruction is available in T32 only.

There is no 16-bit version of this instruction in T32.

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