Index
DCPS2
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.
| 31 |
30 |
29 |
28 |
27 |
26 |
25 |
24 |
23 |
22 |
21 |
20 |
19 |
18 |
17 |
16 |
15 |
14 |
13 |
12 |
11 |
10 |
9 |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
0 |
| 1 |
1 |
0 |
1 |
0 |
1 |
0 |
0 |
1 |
0 |
1 |
imm16 |
0 |
0 |
0 |
1 |
0 |
|
|
|
|
LL |
if !Halted() then UNDEFINED;
Assembler Symbols
| <imm> |
Is an optional 16-bit unsigned immediate, in the range 0 to 65535, defaulting to 0 and encoded in the "imm16" field. |
Operation
DCPSInstruction(LL);