{
-}h exloc2
: DISPLAY If L, T, or K is entered either without any operands, or followed immediately by a the contents of all storage or all the storage keys are displayed. The address, haxloc1, may be one to six hexadecimal digits; leading zeros
are optional.
is the last of the range of hexadecimal storage locations whose contents are to be displayed at the terminal. Either a
- or a: must be specified to display the contents of more
than one location by storage address. If -or : is the first
character of the operand, then hexloc1 defaults to zero. If
hexloc2 is not specified; the contents of all storage locations from hexloc1 to the end of virtual storage are
displayed. If specified, hexloc2 must· be equal to or greater
than hexloc1 and within the virtual storage size (see "Usage Notes" below for a discussion on discontiguous saved
seqments.) The address, hexloc2, may be from one to six
hexadecimal diqits; leading zeros are optionale } bytec·ou n t ];]Q Greq 1 Yreq1 Xreq1
is a hexadecimal integer designating the number of bytes of storaqe (starting with the byte at hexloc1) to be displayed at
the terminal. The period (.l must be specified to display the
contents of more than one storage location by bytecount. The
sum hexloc1 and bytecount must be an address that does not the virtual machine size (see "Usage Notes" below for a on discontiguous saved If this address
is not on a fullword boundary, it is rounded up to the next
hiqher fullword. The value, bytecount, must have a value of
at least one and may be from one to six hexadecimal digits;
leadinq zeros are optional. is a decimal number from 0 to 15 or a hexadecimal integer from
o to F representing the first, or only, general register whose are to be displayed at the terminal. If G is
specified without a register number, the contents of all the
qeneral reqisters are displayed at the terminal.
is an inteqer (0, 2, 4, or 6) representing the first, or only, register whose contents are to be displayed at
the terminal. If Y is specified without a register number,
the contents of all of the floatinq-point registers are
displayed at the terminal. is a decimal number from 0 to 15 or a hexadecimal number from
o to F representing the first, or only, control register whose
contents are to be displayed at the terminal. If X is
specified without a register number, the contents of all of the. control registers. are .displayed at the terminal. If Xreq1 is specified for a virtual machine without extended mode
operations available, only control reqister 0 is displayed.
section 5. Format of CP Commands 15

DISPLAY {
-}re
g
2
: is a number representinq the last register whose contents are
to be displayed at the terminal. The dask (-) or colon <:)
following reg1 is used to specify a range of register values to be displayed. If req2 is not specified, the contents of
all reqisters from rea1 through the last register of this type
are displayed. The operand, reg2, must be equal to or greater
than rea1. If Greg1 or Xreg1 is specifiei, reg2 may be a
decimal numher from ° to 15 or a hexadecimal number from 0 to
F. If Yrea1 is specified, reg2 may be 0, 2, 4, or 6. The
contents of reqisters reg1 through reg2 are displayed at the
terminal.
f.1 reqcount PSW CSW is a decimal number from 1 to 16 or a hexadecimal number from
1 to F specifying the number of reqisters (starting with reg1)
whose contents are to be displayed at the terminal. If the 1isplav type G or X is specified, regcount can be a decimal number from 1 to 16 or a hexadecimal number from 1 to F. If display type Y is specified, regcount must be 1, 2, 3, or 4.
The sum of reg1 and regcount must be a number that does not
exceed the maximum reqister number for the type of registers
beinq displayed.
displays the current virtual machine
word) as two hexadecimal words. PSW (program status
displays the contents of the CAW (channel address word at
hexadecimal location 48) as one hexadecimal word.
displays the contents of the CSW (channel status word at
hexadecimal location 40) as two hexadecimal words.
1. First level storage is real main storaqe. Only second-level stor3.ge (storaqe that is real to the virtual machine) can be displayeJ. Operatinq systems runninq in a virtual machine such as DJS/VS and OS/VS have virtual (third level) storage of their own.
This third-level storaqe cannot be displayed directly. The user or
the virtual operating system is responsible for converting any thiri-Ievel storage locations to second-level storage locations
before issuing the command.
2. If a command line with an invalid operand is entered, the DISPLAY commind terminates when it encounters the invalid operand; however, 3.nv previous valid operands are processed before termination
occurs. Multiple storage locations, registers, and control words can be displayed using a single command line. IS' CP Command Beference General Users