HP MC68040 User Manual page 244

Chapter 5: Using the Emulation-Bus Analyzer
Displaying the Trace List
Normally, the MC68040 presents the trace list data as it was stored by the analyzer.
That is, all bus cycles are shown, and disassembly starts with the most significant
word of the data.
If you don't want to see operand cycles in the trace list, specify the
instructions_only option.
Each analyzer bus state may have two data words. An opcode can appear in either
word. You can force disassembly to begin with the lower word of the first trace
state by using the low_word option. If the disassembled trace list isn't what you
expected, try using this option.
The disassembly options remain in effect until you specify a new disassembly
option.
Examples
Show only instruction cycles in the trace list starting at line 40:
display trace disassemble_from_line_number 40
instructions_only
Show all bus cycles in the trace list:
display trace disassemble_from_line_number 40 all_cycles
Start instruction disassembly from the upper word of the bus:
display trace disassemble_from_line_number 100 high_word
Start instruction disassembly from the lower word of the bus
display trace disassemble_from_line_number 100 low_word
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