Tektronix TMS 440 SH-3 7708, Instruction Manual

Page: 53 / 100

TMS 440 SH-3 7708 Microprocessor Support
2–13
Acquiring and Viewing Disassembled Data
Acquiring Data
Once you load the SH-3 support, choose a clocking mode, and specify the
trigger, you are ready to acquire and disassemble data.
If you have any problems acquiring data, refer to information on basic operations
in your online help or Appendix A: Error Messages and Disassembly Problems in
the basic operations user manual.
Viewing Disassembled Data
You can view disassembled data in four display formats: Hardware, Software,
Control Flow, and Subroutine. The information on basic operations describes
how to select the disassembly display formats.
NOTE . Selections in the Disassembly property page (the Disassembly Format
Definition overlay) must be set correctly for your acquired data to be disas-
sembled correctly. Refer to Changing How Data is Displayed on page 2–16.
The default display format shows the Address, Data, and Control channel group
values for each sample of acquired data.
If a channel group is not visible, you must use the Disassembly property page to
make the group visible.
The disassembler displays special characters and strings in the instruction
mnemonics to indicate significant events. Table 2–2 lists these special characters
and strings and gives a definition of what they represent.
Table 2–2: Meaning of special characters in the display
Character or string displayed Definition
>> Fetch cycle has been manually marked by you.
Indicates there is insufficient data available for complete
disassembly of the instruction; the number of asterisks
indicates the width of the data that is unavailable. Each two
asterisks represent one byte.
Indicates an immediate value