IBM System/370 - Page 67

DOS/VS IPL Commands
Source: SY33-8571 DOS/VS Handbook, Release 29
Operation
ADD
Operand
Remarks
X'cuu'[ (k) ],devicetype[,X'SS' ] Add a device to the PUB table.
,X'ssss' X'cuu': Channel and unit nuni>er
,X'ssssss' (k): Can be specified as either
(S) or a decimal number
from
0 to 255.
(S) indicates that the de-
vice can be switched (that
is,physically attached to
two
adjacent channels).
The designated channel is
the lower of the two chan-
nels.
(0)-(255) indicates the
priority of a device that
cannot be switched,with 0
indicating the highest pri-
ority. If (k) is not given,
the assumed priority is 255
device actual device (See device
type: codes list)
X'ss' device specification (See
X'ssss' ASSGN
statement). If
X 'ssssss ': absent the following values
are ass i gned:
X'CO' for 9-track tapes
X
'90' for 7 -track tapes
X'OO' for nontapes.
X'OO',X'01',X'02' and
X'03' are invalid as X'ss'
for magnetic
tape.
X'ss' specifies SADxxx
(Set ADdress) requirements
for
IBM 2702 lines:
X'OO' for SADO
X'Ol' for SAD1
X'02' for SAD2
X'03' for SAD3
X'ss' is required for MICR!
OCR
device types. It spe-
cifies the external inter-
rupt bit in the old PSW,
which is used by this devic.
to
indicate "read complete'
The specifications are:
X'Ol' PSVV bit 31
X'02' PSW bit 30
X'04' PSW bit 29
X'OS' PSW bit 28
X'10' PSVV bit 27
X'20' PS# bit 26
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