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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".
1
Triggering on
Multiple States
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.
Trace List Offset=0 More data off screen (ctrl-F, ctrl-G)
Label: Address Data Opcode or Status state count
Base: hex hex mnemonic relative
-002 0005C2 5656 56 supr data wr byte ------------
-001 0005C2 6A6A 6A supr data wr byte 136
after 0005C3 9393 93 supr data wr byte 35
+001 0005C2 2626 26 supr data wr byte 177
+002 0005C2 D3D3 D3 supr data wr byte 213
+003 0005C2 0707 07 supr data wr byte 300
+004 0005C2 9797 97 supr data wr byte 125
+005 0005C2 E3E3 E3 supr data wr byte 452
+006 0005C2 4747 47 supr data wr byte 79
+007 0005C2 1010 10 supr data wr byte 225
+008 0005C2 6E6E 6E supr data wr byte 280
+009 0005C2 7474 74 supr data wr byte 617
+010 0005C2 C0C0 C0 supr data wr byte 194
+011 0005C2 0202 02 supr data wr byte 990
STATUS: M68000--Running user program Emulation trace complete______...R....
trace about 5c2h or 5c3h occurs 5 only 5c2h counting state AGAIN
run trace step display modify break end ---ETC--
2-20 Getting Started
Summary of Contents for 64700 series
Page 2: ......
Page 19: ...Tables Table 9 1 Summary of Commands 9 4 Table 9 2 Command Assignments 9 5 Contents 11 ...
Page 20: ...1 Notes 12 Contents ...
Page 24: ...1 Notes 1 4 Introduction ...
Page 106: ...1 Notes 4 36 Performance Measurements ...
Page 118: ...Figure 5 8 True Demultiplexing 5 12 Using the External Analyzer ...
Page 128: ...1 Notes 6 6 Timing Introduction ...
Page 134: ...1 Notes 7 6 Timing Getting Started ...
Page 168: ...1 Notes 8 34 Timing Using the Analyzer ...
Page 201: ...1 find This command finds a trigger like event in trace memory Syntax Timing Commands 9 33 ...
Page 219: ...1 mark This command marks specified conditions in trace memory Syntax Timing Commands 9 51 ...
Page 254: ...1 trigger This command specifies trigger conditions Syntax 9 86 Timing Commands ...
Page 262: ...1 Notes 9 94 Timing Commands ...
Page 280: ...1 Notes B 16 Timing Diagrams and Outputs ...
Page 292: ...1 Notes C 12 Timing Messages ...