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3. Determine the number of records on the RAM card that are in use. The number of records
stored on the RAM card can be determined by cataloging the card, finding the starting
record address for the last catalog entry, adding the number of records used for the last
catalog entry to the starting record address, and then subtracting one.
4. Subtract the number of records stored (determined in step 3) from the total number of
records available (determined in step 2) to determine the number of unused records on the
RAM card.
Example
Figure 4-l shows that the number of records on the RAM card that are in use is 53 (35 + 19
-
1 =
53),
and the total number of records available are 128. The number of unused records on
the
RAM
card
is 75 (128
-
53
= 75).
0
1
47
REF
\
. 0 d0m
ATTEN
10 dB
PEAK
HP859X
128
E.
14:11:28
OCT 15, 1991
TRACE 10
14:14:07
OCT
15,
1991
dB/
tTRANSD-3
TRACE 15
E
14:16:03
OCT 15, 1991
tTRANSD-4
TRACE 20
14:17:23
OCT 15, 1991
t-1
TRACE 25
09:38:44
OCT 17, 1991
TRACE 30
i
12:54:56
OCT
17,
1991
DSPLY 35
19
17:00:18
FEB
28, 1992
/
SA
SB
SC FC
CORR
Exit
Catalog
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UBW
1 MHz
SPAN 6.500
8Hz
SWP 130
msec
RT
Figure 4-1. Determining the Number of Records
Table
4-1. Cataloging a RAM Card
LOhD
FILE
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FILE
Index
Description
1
Total number of records.
2
Number of records for the last catalog item.
3
Starting record address for the last catalog entry.
4
The
last
cataloa
entrv.
Creating and Using Downloadable Programs
4-13