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

DUMP
Purpose
Usage Notes
Use the DUMP commands described in the following sectionsto send data to your
printer from the following machine components, both real and virtual:
v The contents of first-level storage (the real storage of the processor)
v The contents of second-level storage (the storage that appears real to the
operating system running in your virtual machine)
v The contents of third-level storage (the storage that appears virtual to the
operating system running in your virtual machine)
v Old and new PSWs and interrupt information for the following interrupts:
SVC
I/O
PROGRAM
EXTERNAL
MACHINE CHECK
v Storage keys
v Linkage stack
v Contents of registers:
Access
Control
Floating-point
Floating-point control
General purpose
Prefix
Crypto domain index
v Subchannel information blocks (SCHIBs)
v The current program status word (PSW)
v The following Vector Facility information:
Vector registers (VR)
Vector register pair(s) (VP)
Vector status register (VSR)
Vector mask register (VMR)
Vector activity count (VAC)
Vector section size (VSS)
1. The DUMP command prints the contents of various storage locations, registers,
and control registers to your virtual printer. You may be able to detect the cause
of program errors by examining this information.
2. Using a single command, you can dump multiple storage locations, registers,
and control words.
Follow these rules to execute the command properly:
a. Do not put blanks between operands that relate to a single DUMP request,
except for PSW and SCHIB, which require at least one blank between the
first and second operands. For example, if you want to dump hexadecimal
location 40, enter dump H40.
b. Separate each set of dump requests from others by at least one blank.
For example, if you want to dump the hexadecimal location 40 and the
contents of register 5, enter dump H40 G5.
DUMP
Chapter 2. CP Commands 351