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Model 1630A/D/G
State Measurements
5. The trigger state specified in the trace specification is at location 0000 on the State Listing . 7 rigger was
specified to be the start of the trace.
6. Press TRACE and move the cursor to the [start] field. Select [center] with the NEXT[] keyto place the
trigger position at the center of the trace. This specification is used when it is desired to see states before
and after the trigger condition . Notice a field to the right of the [a] resource term has been added to the
menu for store qualifying data . Store qualifying is explained later in this chapter.
7 . Press RUN . The analyzer will begin storing states into memory . When the state specified is found, the
analyzer will capture that state and store an additional 512 states . The states captured before the trigger
will be identified on the state list with line numbers preceded by minus signs . The trigger and the states
captured after the trigger are identified by line numbers preceded with plus signs as in figure 4-25 .
e Listing__-----__----__-------------___--__-------------- .
L ..6el
ADDR
8085 Mnemonic
STAT
Time
H .se i"
Figure 4-25. Trigger Centers
Trace State Listing
8. The trigger may be placed at the end of the trace list in cases where activity after the trigger is not
important but activity before the trigger is the necessary data . Press TRACE and select [end] trace on
trigger. The analyzer captures activity from the target system until the trigger is found . The trigger
condition and the previously captured states are then displayed in the state list, as in figure 4-26 .
State Lissting-----------------__-------__--__-----__--__------ .
Figure
4-26.
Trigger Ends Trace State
Listing
4- 2 1
Label',.
ADDR
8085 Mnemonic
STAT
Time
D .-e
-0015*
0053
Jn
004C
3
-28 .00 ors
-0014
0054
4C memory read
2
-26 .00
PS
-0013
0055
00 memory read
2
-24 .48
Ns
-0012+
004C
ADD
M
3
,-23 .00
PS
-0011
'0435
8C memory read
2
-21 .00
Vs
-0010'+
004D
IMX
H
3
-19 .48 jts
-0009*
004E
NOV
C ,A
3
-16 .48 us
®"
004F
MVI
A,08
3
-14 .48 us
-0007
0050
08 rcie .ory read
-12 .48 irs
-0006*
0051
CMP
H
3
-11 .00
PS
-0005 .
0052
MOV
A ,C
3
-9 .000 Ins
-0004+
0053
RIS
0040
3
-7 .000
PS
-0003
0054
4c rnemory read
-5 .000 tiaa
-0002
0055
00 rnernory read
-3 .480
Ixe
-00011
004C
ADD
11
3
-2 .000
1-
+0000
04136
15 ,,erciory
r e a d
2
0 .0
=.
-0003*
0437
JMZ
0436
-'3
-5 .000 u5 - .
-0002
0438 .
36 memory read'
2
-3 .000
1 w ~~1s-. .
-0001
0439
'04 memory read
2
-1 .520 PS'
0436
0436
DCR
D .
3
-
0 .0
s
+0001-
0437
JN2
0436
3
.2 .000 NS .
+0002
0438
36 . memory read
2
4 .000 las
+0003
0439
04 memory read
2
5 .480
PS
+0004*
0436
DCR
D
3
7 .000
his
+0005' .
04:37
THE
0436
3
9 .000 u= .
06
0438
36 rciemary,r .ad
2
11 .00
0439
04 rnercmry read
2
12 .43 ps
+i i_u78 .r:
0436
DC.R
0
3
14 .00 u=:
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