HP H8/3003 User Manual page 51

Line addr,H H8/3042 mnemonic,H
----- ------ -----------------------------------
0 00101e aa41
1 001014 MOV.B @0ff800,R2L
2 001016 000f
3 001018 f800
4 00101a CMP.B #00,R2L
5 0ff800 00xx
6 00101c BEQ 001014
7 00101e aa41
8 001014 MOV.B @0ff800,R2L
9 001016 000f
10 001018 f800
11 00101a CMP.B #00,R2L
12 0ff800 00xx
13 00101c BEQ 001014
14 00101e aa41
15 001014 MOV.B @0ff800,R2L
16 001016 000f
17 001018 f800
18 00101a CMP.B #00,R2L
19 0ff800 00xx
20 00101c BEQ 001014
U> tl 0..20
fetch mem
fetch mem
fetch mem
read mem byte
fetch mem
fetch mem
fetch mem
read mem byte
fetch mem
fetch mem
fetch mem
read mem byte
This is not what we were expecting to see. (We expected to see the
program executed Exe_Cmd routine which starts from 101e hex.) As
you can see at the fist line of the trace list, address 101e hex appears on
the address bus during the program executing Scan loop. This triggered
the emulation analyzer before EXE_Cmd routine was executed. To
avoid mis-trigger by this cause, set the trigger condition to the second
instruction of the routine you want to trace. Type:
U> tg addr=1020
To change the trigger position so that 10 states appear before the trigger
in the trace list, type:
U> tp -b 10
Start the trace again and modify memory:
U> t
U> m 0ff800=41
Now display the trace list:
U> tl -10..10
As you can see, the analyzer captured the execution of Exe_Cmd
routine which starts from line -2 of the trace list.
count,R seq
--------- ---
--- +
0.120 uS .
0.120 uS .
0.120 uS .
0.120 uS .
0.120 uS .
0.120 uS .
0.160 uS .
0.120 uS .
0.120 uS .
0.120 uS .
0.120 uS .
0.120 uS .
0.120 uS .
0.120 uS .
0.160 uS .
0.120 uS .
0.120 uS .
0.120 uS .
0.120 uS .
0.120 uS .
Getting Started 2-31