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IAR Embedded Workbench for RX 5.20

Symbolic Memory window

In this section:

What do you want to do?

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The Symbolic Memory window is available from the View menu during a debug session.

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This window displays how variables with static storage duration, typically variables with file scope but also static variables in functions and classes, are laid out in memory. This can be useful for better understanding memory usage or for investigating problems caused by variables being overwritten, for example buffer overruns. Other areas of use are spotting alignment holes or for understanding problems caused by buffers being overwritten.

Tip

To view the memory corresponding to a variable, you can select it in the editor window and drag it to the Symbolic Memory window.

Requirements

Can be used with all C-SPY debugger drivers and debug probes.

Toolbar

The toolbar contains:

Go to

The memory location or symbol you want to view.

Zone

Selects a memory zone, see C-SPY memory zones.

Previous

Highlights the previous symbol in the display area.

Next

Highlights the next symbol in the display area.

Display area

This area contains these columns:

Location

The memory address.

Data

The memory contents in hexadecimal format. The data is grouped according to the size of the symbol. This column is editable.

Variable

The variable name—requires that the variable has a fixed memory location. Local variables are not displayed.

Value

The value of the variable. This column is editable.

Type

The type of the variable.

There are several different ways to navigate within the memory space:

  • Text that is dropped in the window is interpreted as symbols

  • The scroll bar at the right-side of the window

  • The Next and Previous toolbar buttons

  • The Go to toolbar list box can be used for locating specific locations or symbols.

Note

Rows are marked in red when the corresponding value has changed.

Context menu

This context menu is available:

SymbolicMemPopup_Mym80_03.png

These commands are available:

Next Symbol

Highlights the next symbol in the display area.

Previous Symbol

Highlights the previous symbol in the display area.

1x Units

Displays the memory contents as single bytes. This applies only to rows that do not contain a variable.

2x Units

Displays the memory contents as 2-byte groups.

4x Units

Displays the memory contents as 4-byte groups.

Add to Watch

Adds the selected symbol to the Watch window.

Add to Live Watch

Adds the selected symbol to the Live Watch window.

Default format

Displays the memory contents in the default format.

Binary format

Displays the memory contents in binary format.

Octal format

Displays the memory contents in octal format.

Decimal format

Displays the memory contents in decimal format.

Hexadecimal format

Displays the memory contents in hexadecimal format.

Char format

Displays the memory contents in char format.