Displaying The Trace - HP 64793 Series User Manual

Displaying the Trace

Trace List
Label: Address
Base: symbols
after :Cmd_Input
+001 :cmd_rds.s:+0010
+002 cmd_rds.:Exe_Cmd
+003 cmd_rds.src:Scan
+004 :cmd_rds.s:+0014
+005 :cmd_rds.s:+0016
+006 cmd_rds.sr:Cmd_A
+007 :cmd_rds.s:+0018
+008 :cmd_rds.s:+001A
+009 cmd_rds.sr:Cmd_B
+010 :cmd_rds.s:+0026
+011 :cmd_rds.s:+0028
+012 :cmd_rds.s:+002A
+013 cmd_rds.sr:Cmd_I
+014 cmd_rd:Write_Msg
STATUS: H8/338--Running user program
display trace
run trace
The message "Emulation trace started" will appear on the status line.
Now, modify the command input byte to "B" with the following
command.
modify memory Cmd_Input bytes to 42h
<RETURN>
The status line now shows "Emulation trace complete".
The trace listings which follow are of program execution on the
H8/338 emulator. To display the trace, enter:
display trace <RETURN>
Offset=0
Data
hex
42FF 42
47F8 BEQ cmd_rds.src:Scan
AA41 CMP.B #41,R2L
6A0A 6A0A
4706 BEQ cmd_rds.sr:Cmd_A
AA42 CMP.B #42,R2L
FB11 FB11
470A BEQ cmd_rds.sr:Cmd_B
4010 4010
FB11 MOV.B #11,R3L
7904 MOV.W #2011,R4
2011 2011
4006 BRA cmd_rd:Write_Msg
FB0F FB0F
7905 MOV.W #FC02,R5
step display
Line 0 (labeled "after") in the trace list above shows the state which
triggered the analyzer. The trigger state is always on line 0. The other
states show the exit from the Scan loop and the Exe_Cmd and Cmd_B
instructions. To list the next lines of the trace, press the <PGDN> or
<NEXT> key.
Opcode or Status
mnemonic w/symbols
read mem byte
fetch mem
fetch mem
fetch mem
fetch mem
fetch mem
Emulation trace complete______........
modify break
time count
relative
------------
200 nS
200 nS
200 nS
200 nS
200 nS
200 nS
200 nS
200 nS
200 nS
200 nS
200 nS
200 nS
200 nS
200 nS
end ---ETC--
Getting Started 2-23