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

TRACE: Command Responses
TRACE: Command Responses
Purpose
In this section are illustrated the command responses for each of the TRACE
command operands. These response descriptions use the following symbols:
Symbol Meaning
aaaaaaaa
aaaaaaaaaaaaaaaa
aaaaaaaa_aaaaaaaa
A storage address, followed by a single quote (’) if a primary
address space storage address or a double quote (”) if a home
address space storage address. For external and I/O interrupts, it is
the PSW address at the time of the interrupt. When a PER event is
reflected to the virtual machine, it is the program event recorder
event address. For other program exceptions, it is the old PSW
instruction address for nullification exceptions, and for all others it is
the old PSW instruction address as adjusted by the instruction
length code. 1
tttttttt
tttttttt_tttttttt
tttttttttttttttt
A transfer address, followed by a single quote (’) if DAT. 2
xxxxxxxx An instruction, CSW status, and other such items.
gggggggg A second-level channel command word, CSW status, and other
guest output.
hhhhhhhh A first-level channel command word, CSW status, and other such
host output.
oooo A first-level CCW offset.
address1 The address of operand 1 (for SI and SS formats only). 2
address2 The address of operand 2 (for RX, RS, S, and SS formats only). 2
The operands address1 and address2 may be question marks if:
v the address cannot be resolved because the base or index
registers used to compute them have been altered by the
instruction
v the operand is ignored by the instruction.
address3/address4/address5
Addresses of storage alterations. 2
content1 The contents of the R1 field (RRE format only). 1
content2 The contents of the R2 field (RRE format only). 1
vvvv A virtual device number.
vsch A virtual subchannel number.
1. The number of hexadecimal digits displayed depends on the virtual machine mode: eight for ESA/390-mode and ESA/XC-mode
machines; 16 for z/Architecture-mode machines. If SET UNDERSCORE is set on, the 16 digits are separated in the middle with an
underscore for easier readablility.
2. The number of hexadecimal digits displayed depends on the guest addressing mode: eight for 24-bit or 32-bit addressing mode; 16
for 64-bit addressing mode.
1610 z/VM: CP Commands and Utilities Reference