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

GHreg1
GH indicates the upper half of a register for a z/Architecture guest. This option
is not valid for an ESA/390 or ESA/XC guest. reg1 is a decimal number from 0
to 15 or a hexadecimal integer from 0 to F representing the first, or only,
general register whose contents are to be dumped to your virtual printer. If you
specify GH without a register number, the high halves of all of the general
registers are dumped.
Xreg1
X indicates a full control register for an ESA/390 or ESA/XC guest or the low
half of the control register for a z/Architecture guest. reg1 is a decimal number
from 0 to 15 or a hexadecimal number from 0 to F representing the first, or
only, control register whose contents are to be dumped to your virtual printer. If
you specify X without a register number, the appropriate contents of all the
control registers are dumped.
XGreg1
XG indicates a full register (32 bits for an ESA/390 or ESA/XC guest, 64 bits for
a z/Architecture guest). reg1 is a decimal number from 0 to 15 or a
hexadecimal number from 0 to F representing the first, or only, control register
whose contents are to be dumped to your virtual printer. If you specify XG
without a register number, the appropriate contents of all the control registers
are dumped.
XHreg1
XH indicates the upper half of a register for a z/Architecture guest. This option
is not valid for an ESA/390 or ESA/XC guest. reg1 is a decimal number from 0
to 15 or a hexadecimal number from 0 to F representing the first, or only,
control register whose contents are to be dumped to your virtual printer. If you
specify XH without a register number, the high halves of all of the control
registers are dumped.
Yreg1
is an integer (0, 2, 4, or 6 (or 0 through 15 if floating-point extensions are
available)) representing the first, or only, floating-point register whose contents
are to be dumped to your virtual printer. If you specify Y without a register
number, the contents of all the floating-point registers are dumped.
FPC
FPC dumps the contents of the floating-point register if floating-point
extenstions are available.
DUMP Registers
: END
– reg2
reg2 is a number of the last register whose contents are to be dumped. You
must specify the dash (-) or colon (:) when you are requesting more than one
register by register number. You must specify the range of registers in
ascending order. Therefore, the value you specify for reg2 must be equal to or
greater than the value you specify for reg1.
The colon (:) means the same as a dash (-) when you are specifying a range
of addresses.
If you specify G, GG, GH, AR, X, XG, or XH, reg2 may be a decimal number
from 0 to 15 or a hexadecimal number from 0 to F. If you specify Y, reg2 may
be 0, 2, 4, or 6 (or 0 through 15 if floating-point extensions are available). The
contents of register 1 through register 2 are dumped to your virtual printer.
Specify END to dump the contents of all remaining registers. END is the
default. The remaining registers are as follows:
Chapter 2. CP Commands 401