z/VM: CP Commands and Utilities Reference - z/VM - IBM

TRACE TABLE
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TRace
Authorization
Purpose
TAble
Usage Notes
Responses
Privilege Class: G
Use TRACE TABLE to display the traceback table.
1. The traceback table is a list of successful branch instructions that is maintained
while branch tracing is active. It contains the most recent branch instructions
processed. If the same instruction is processed with no intervening branch
instructions, the number of times the instruction was processed will be
maintained.
Up to six instructions are maintained in the traceback table. The most recent
branch is displayed as the last entry in the table.
2. For more information, see “Usage Notes” on page 1601.
Response 1:
INST-ADDR INST-STO MNEM OPCODE-OPER DEST-ADR DEST-STO COUNT
aaaaaaaa ssssssss mnem xxxxxxxxxxxx -> tttttttt ssssssss nn
is displayed if there is at least one entry in the traceback table and all entries in the
table were collected in ESA/390 mode. This may be repeated for up to six entries.
The operand nn specifies the number of times in a row this branch instruction was
processed. This value is not displayed if n=1.
The STO fields are filled with blanks when branch instructions are running in the
real address mode.
Response 2:
INST-ADDR MNEM OPCODE-OPER DEST-ADDR COUNT
aaaaaaaa_aaaaaaaa mnem xxxxxxxxxxxx -> tttttttt_tttttttt nnnnnnnnn
ASCE=ssssssssssssssss ASCE=ssssssssssssssss
TRACE TABLE
is displayed if there is at least one entry in the traceback table and at least one
entry in the table was collected in z/Architecture mode. This may be repeated for up
to six entries. The operand nn specifies the number of times in a row this branch
instruction was processed. This value is not displayed if n=1.
The STO and ASCE fields are filled with blanks when branch instructions are
running in the real address mode.
The response below shows output with two ESA/390 and three z/Architecture table
entries:
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Chapter 2. CP Commands 1655