HP 3000 Manuals HP 3000 Manuals
Writing User Data in ANSI Labels
It is possible to write data into bytes 5/21 of the HDR1 record of an
ANSI tape label. In all, 17 bytes are available. If you write more than
8 bytes into the record, the 9th byte (Byte 13) must be a period (".").
For example, to write the string "FRANKSTN COUNCIL" into bytes 5/21,
mount your tape and then do this:
FILE FRANKSTN.COUNCIL;DEV=TAPE;REC=-80,,F,ASCII;LABEL=BUDGET,ANS
FCOPY FROM=datafile;TO=*FRANKSTN.COUNCIL
where datafile is the name of a disk file. This coerces the string
"FRANKSTN.COUNCIL" into bytes 5/21 of the HDR1 record, and it places
"BUDGET" into the VOL1 record of the tape.
The "file" and "group" names are right-justified.
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| | | | | | | | | | | | | | | | | |
| 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
| | | | | | | | | | | | | | | | | |
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| F | R | A | N | K | S | T | N | . | | C | O | U | N | C | I | L |
| | | | | | | | | | | | | | | | | |
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In order to retrieve the string recorded in bytes 5/21, you must create a
program that uses the intrinsics FOPEN (or HPFOPEN) and FFILEINFO. The
program must do two things:
* It must FOPEN (or HPFOPEN) the tape device.
* It must employ FFILEINFO with option 45 to retrieve the "file"
identifier.
The tape containing such a label must be mounted before you run the
program.