Chapter 5. Problem Determination, Diagnostics, and Recovery 351
1st ed., 6/30/04 - 312579601
DSP Trace Entry
event-type = ‘D’
event-code
TTEWORD1
TTEWORD2
TTEWORD3
= dispatch priority
= R15
= R12
= R13
Return from SVC Trace Entry
event-type
event-code
TTEWORD1
TTEWORD2
TTEWORD3
= ‘W’
= dispatch priority
= R15
= R0
= R1
SIO Trace Entry
event-type
event-code
TTEWORD1
TTEWORD2
TTEWORD3
= ‘S’
= device address
= IOB address
= CAW
= Reserved
I/O Trace Entry
event-type
event-code
TTEWORD1
TTEWORD2
TTEWORD3
= ‘I’
= device address
= IOB address
= CSW (bytes 0-3)
= CSW (bytes 4-7)
SVC Trace Entry
event-type
event-code
TTEWORD1
TTEWORD2
TTEWORD3
= ‘V’
= SVC number
= R15
= R0
= R1
PGM Trace Entry
event-type
event-code
TTEWORD1
TTEWORD2
TTEWORD3
= ‘P’
= program interrupt code
= R15
= R12
= R1
MCK Trace Entry
event-type
event-code
TTEWORD1
TTEWORD2
TTEWORD3
= ‘M’
= machine check interrupt code (bytes 0-3)
= machine check interrupt code (bytes 4-7)
= external damage code
= failing storage address