These trace entries represent a change of addressing mode:
- A MODE trace entry represents a change into or out of 64-bit addressing
mode
- A MOBR trace entry represents a change into or out of 64-bit addressing
mode along with a change of instruction address
PR ASID TCB-ADDR IDENT CD/D PSW----- ADDRESS- UNIQUE-1 UNIQUE-2 UNIQUE-3 PSACLHS- PSALOCAL PASD SASD TIMESTAMP-RECORD CP
UNIQUE-4 UNIQUE-5 UNIQUE-6
pr last tcb-addr MODE target address- address- address- address- address- etc.
pr last tcb-addr MOBR target address- address- address- address- address- etc.
- PR
- pr: Identifier of the processor that produced the
TTE.
- ASID
- last: Last home address space identifier (ASID)
in the trace buffer.
- TCB-ADDR
- tcb-addr: Address of the task control block (TCB)
for the current task for which the TTE was produced.
- IDENT
- The TTE identifier, as follows:
- MODE
- Addressing mode change instruction
- MOBR
- Addressing mode change combined with a branch instruction
- CD/D
- Blank
- PSW-----
- target: Target addressing mode.
- 24 OR 31
- Target addressing mode is either 24-bit or 31-bit.
- 64
- Target addressing mode is either 64-bit.
- ADDRESS-
- UNIQUE-1/UNIQUE-2/UNIQUE-3
- UNIQUE-4/UNIQUE-5/UNIQUE-6
- PSACLHS-
- PSALOCAL
- PASD
- SASD
- TIMESTAMP-RECORD
- CP
- address-: Target address. Addresses appear in the
following formats:
| Addressing mode and location |
Appearance |
|---|
| 24-bit address |
xxxxxx |
| 31-bit address |
xxxxxxxx |
| 64-bit address with zeros in high-order
bits |
00_xxxxxxxx |
| 64-bit address with nonzero high-order
bits |
xxxxxxxx_xxxxxxxx |