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ARM Compiler armasm User Guide : DCPS3


Debug Change PE State to EL3.


DCPS3 {#imm}



Is an optional 16-bit unsigned immediate, in the range 0 to 65535, defaulting to 0.


Debug Change PE State to EL3 allows the debugger to move the PE into EL3 from a lower Exception Level or to a specific mode at the current Exception Level. The PE enters EL3h.

This instruction is always UNDEFINED in Non-debug state.

For more information on the operation of this instructions, see DCPS in the ARMv8-A Architecture Reference Manual.