TotalView Users Guide - CI Wiki

Figure 184: Variable Window
with Machine Instructions
Displaying Variables
If a Variable Window is already being displayed, you can change the type to
$void and add an array specifier. If you do this, the results are similar to
what is shown in this figure.
Changing Types to Display Machine Instructions
You can display machine instructions in a Variable Window by changing the
text in the Variable Window Type field. All you need do is edit the type string
to be an array of $code data types. You also need to add an array specifier to
tell TotalView how many instruction to display. For example, the following
changes the Variable Window so that it displays three machine instructions:
$code[3]
The Variable Window lists the following information about each machine
instruction:
Offset+Label The symbolic address of the location as a hexadecimal
offset from a routine name.
Code The hexadecimal value stored in the location.
Instruction The instruction and operands stored in the location.
You can also edit the value listed in the Value field for each machine
instruction.
Displaying Machine Instructions
You can display the machine instructions for entire routines as follows:
� Dive on the address of an assembler instruction in the Source Pane (such
as main+0x10 or 0x60). A Variable Window displays the instructions for
the entire function, and highlights the instruction you dove on.
� Dive on the PC in the Stack Frame Pane. A Variable Window displays the
instructions for the entire function that contains the PC, and also highlights
the instruction pointed to by the PC. (See Figure 184.)
� Cast a variable to type $code or array of $code.
TotalView Users Guide: version 8.7 297