Triggering On Multiple States - HP 64700 Series User Manual

T riggering on
1
Multiple States
Trace List
Label: Address Data
Base: hex hex
-002 0005C2
-001 0005C2
after 0005C3
+001 0005C2
+002 0005C2
+003 0005C2
+004 0005C2
+005 0005C2
+006 0005C2
+007 0005C2
+008 0005C2
+009 0005C2
+010 0005C2
+011 0005C2
STATUS: M68000--Running user program
trace about 5c2h
run trace
2-20 Getting Started
Notice that the trigger position has been moved to the center of
the trace so that states which occur before the trigger are saved.
Usually, when you enter a "trace about" command, the trigger state
(line 0) is labeled "about". However, if there are three or fewer
states before the trigger, the trigger state is labeled "after".
Likewise, if there are 3 or fewer states after the trigger, the trigger
state is labeled "before".
The analysis specification allows you to trigger on multiple states.
That is, when one state, or a second state, or a third state, etc.,
occur the specified number of times, the analyzer triggers. For
example, suppose you wish to change the previous analysis
specification to trigger on the fifth occurrence of address 5C2H or
5C3H. Enter:
trace about 5c2h or 5c3h occurs 5
only 5c2h
counting state AGAIN <RETURN>
Press the < downarrow> key a few times to view the states that are
stored before the trigger.
Offset=0
Opcode or Status
5656 56 supr data wr byte
6A6A 6A supr data wr byte
9393 93 supr data wr byte
2626 26 supr data wr byte
D3D3 D3 supr data wr byte
0707 07 supr data wr byte
9797 97 supr data wr byte
E3E3 E3 supr data wr byte
4747 47 supr data wr byte
1010 10 supr data wr byte
6E6E 6E supr data wr byte
7474 74 supr data wr byte
C0C0 C0 supr data wr byte
0202 02 supr data wr byte
or 5c3h occurs 5 only 5c2h counting
step display
More data off screen (ctrl-F, ctrl-G)
mnemonic
Emulation trace complete______...R....
state AGAIN
modify break
state count
relative
------------
136
35
177
213
300
125
452
79
225
280
617
194
990
end ---ETC--