Header in the master trace table

TABLE ID CURRENT START END
SUBPOOL
LENGTH
WRAP TIME
WRAP POINT
RESERVED1
DATA LENGTH
RESERVED2...
TABLE ID
A fullword field containing MTT. MTT is an eye-catcher to mark the beginning of the master trace table.
CURRENT
A fullword field containing the address of the current (most recently stored) entry.
START
A fullword field containing the address of the first byte of the trace area.
END
A fullword field containing the address of the first byte beyond the end of the trace area.
SUBPOOL
A one-byte field containing the number of the subpool in which this table resides.
LENGTH
A three-byte field containing the length, in bytes, of the table header and the area containing the entries. This length is the default table size or the size specified on the TRACE command.
WRAP TIME
A double word field containing a time, either when the table was initialized or when the last table wrap occurred. The time is in the XXHH:MM:SS.T form:
XX
Possible values can be IT or WT.
IT
Indicates the time that the table was initialized.
WT
Indicates the time the table last wrapped.
HH
hours
MM
minutes
SS
seconds
T
tenths of a second
WRAP POINT
A fullword field containing the address of the first byte of the last entry stored before the most recent table wrap.
Note: This address is initialized to zero and remains zero until the first table wrap.
RESERVED1
A fullword reserved field.
DATA LENGTH
A fullword field containing the length, in bytes, of the data area part of the table.
RESERVED2
A 21-word field.