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Trace instrumentation
This instruction generates an instrumentation trace packet
that contains the value of the provided register.
This is an alias of
SYS.
This means:
-
The encodings in this description are named to match the encodings of
SYS.
- The description of SYS gives the operational pseudocode, any constrained unpredictable behavior, and any operational information for this instruction.
System
(FEAT_ITE)
| 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 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 1 | 1 | Rt |
| | | L | | op1 | CRn | CRm | op2 | |
Encoding
TRCIT <Xt>
is equivalent to
SYS #3, C7, C2, #7, <Xt>
and is always the preferred disassembly.
Assembler Symbols
| <Xt> |
Is the 64-bit name of the general-purpose source register, encoded in the "Rt" field.
|
Operation
The description of SYS gives the operational pseudocode for this instruction.