HP 64700 Series User Manual page 37

Trace List
Label: Address Data
Base: hex hex
+045 00044A 1340
+046 00044C 0500
+047 00044E 4E75
+048 00054E A1A1
+049 000450 2039
+050 0006F8 0000
+051 0006FA 043C
+052 00043C 60C8
+053 00043E 6100
+054 000406 2241
+055 000408 2200
+056 00040A 6100
+057 00040C 0044
+058 0006F8 0000
+059 0006FA 040E
STATUS: M68000--Running user program
trace after AGAIN
run trace step
Line 31 shows the first instruction executed after return from the
RAND subroutine. The instructions shown in the previous trace
list decide which caller will call the WRITE_NUMBER
subroutine. Line 41 shows the disassembled mnemonic of the
instruction which calls the WRITE_NUMBER subroutine. The
address information shows that the caller is CALLER_1. To view
the instruction cycles of the WRITE_NUMBER subroutine, press
< NEXT> again.
Offset=0 More data off screen (ctrl-F, ctrl-G)
Opcode or Status
mnemonic
MOVE.B D0,00500[A1]
0500 supr prog
RTS
A1 supr data wr byte
MOVE.L 0000600,D0
0000 supr data rd word
043C supr data rd word
BRA.B 0000406
6100 unused prefetch
MOVEA.L D1,A1
MOVE.L D0,D1
BSR.W 0000450
0044 supr prog
0000 supr data wr word
040E supr data wr word
Emulation trace complete______...R....
display modify
Line 45 shows the MOVE.B instruction associated with the
WRITE_NUMBER subroutine.
Line 47 in the trace list above shows the RTS instruction
associated with the WRITE_NUMBER subroutine. Line 48 shows
the random number 0A1H is written to address 54EH.
Line 54 shows the AGAIN address associated with the next loop of
the program.
time count
relative
400
400
400
400
400
400
400
400
400
600
400
400
400
600
400
break end ---ETC--
Getting Started 2-13
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