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r-------------T---------------T------~-T-------------------------------,
I
I
ITransferl
I
I Program
IMounted Volume IOccurs
I
I
ISpecificationlCharacteristicslon a
IPossible Editor Routine Action I
~-------------+-.--------------+--------+-------------------------------~
ISL - 800 or
ISL -- CD
I
DC1
I Overwrite
the
standard
labell
11600 BPI
1
I
Iwith
a
standard
latel.
Thel
I density
I
I
Ifirst write from loadpoint sets 1
I
I
I
Ithe
recording
density
on
al
I
I
I
Idual-density device.
(See Fig-I
I
I
I
lure 7 or 8 --
blocks
15b,
161
I
I
I
land explanation).
I
~-------------+---------------+--------+-------------------------------~
INSL2 - 800 orlNSL
O~
NL -- COl
DC1
IWrite
a
tapemark
to set den-I
11600BPI
1
I
Isity.
The prograre
specifica-I
I density
I
I
Ition
NSL will cause control tol
I
I
I
Ibe given
to
your
nonstandard I
I
I
I
I label
routines after return tol
I
I
1
IOPEN or BOV.
(See Figure
7
-I
I
I
I
I blocks
15,
lSb,
16.
If your I
I
I
I
linstallation
supports
protec-I
I
I
I
Ition
and retention data check-I
I
I
I
ling NSL volumes, see block
6). I
t-------------+---------------+--------+--------------------------------~
ISL
INSL or NL3
I
LC
IWrite
a standard volume label. I
I
I
I
I (See Figure 7 - blocks 15, lSa,1
I
I
I
1 1 6.
If your installation
sup-I
I
I
I
Iports
protection and retention I
I
I
I
Idate checking on
NSL
volumes, I
I
I
I
I see block 6).
I
~-------------+---------------+--------+-------------------------------~
INL or NSL
ISL3
I
LC
IOverwrite standard label with al
I
I
I
Itapemark, i.e.
"cancel."
(Seel
I
I
I
IFigure 7 - blocks 15, 15a, 16).1
I
I
I
IDepending
on whether NL or NSLI
I
I
I
I is specified
by
the
program, I
I
I
I
IOPEN
or
EOV will either posi-I
I
I
I
Ition tape (NL) or transfer con-I
I
I
I
Itrol to your nonstandard
labell
I
I
I
I
routines
(NSL) when control isl
I
I
I
I returned to them.
I
~-------------~--,-------------~--------~-------------------------------~
Legend:
SL
- standard volume label
NSL - nonstandard volume label
NL
- no volume label
DC
- density check
LC
- label check
CD
- Conflicting density.
The volume has teen previously
written
on,
or in a, recording density other than that specified by the
program.
The recording density on a dual-density device is
set
by sensing the density of the mounted volume.
1Dual-Density devices only.
2If
NL
is specified, no density check is performed.
For NL volumes,
tape is positioncQ at load point and recording density is set by
the
first write command.
.
3If the volume is mounted on a dual-density device a density condition
way
also exist.
If will Le corrected ny the write operation.
Note: The OPEN and EOV routines position the tape at load point before
I
transferring control to the editor routines.
L _____________________________________
~
________________________________
J
Figure
6.
Editor Routine Entry Conditions
Label Processing Routines
57
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