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
Previous
Menu
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
DELETE
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.
4The
last
cataloa
entrv.

Creating and Using Downloadable Programs

4-13