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IAR Embedded Workbench for RL78 5.20

Function Trace window

In this section:

What do you want to do?

YellowStripe.png

The Function Trace window is available from the C-SPY driver menu during a debug session.

This window displays a subset of the trace data displayed in the Trace window. Instead of displaying all rows, the Function Trace window shows:

  • The functions called or returned to, instead of the traced instruction

  • The corresponding trace data.

Requirements

One of these alternatives:

  • The C-SPY simulator

  • The E1, E2, E2 Lite/E2 On-Board, EZ-CUBE2, or COM Port emulator

Display area (in the C-SPY simulator)
FunctionTrace_RISCV_01.png
Cycles

The number of cycles elapsed to this point according to the timestamp in the debug probe.

Address

The address of the executed instruction.

Call/Return

The function that was called or returned to.

Display area (for a supported emulator)
FunctionTrace_Emulator_RL78_01.PNG

This area contains these columns for the supported C-SPY emulators:

Frame

The number of the trace buffer frame. By double-clicking the frame number, the collected fetch address will be displayed in the editor window.

Event

The name of the single events that have been triggered by the event conditions. For information about event conditions, see Edit Events dialog box and Edit Sequencer Events dialog box.

Fetch

The fetch type of the instruction associated with the trace frame.

For the E1, E2, E2 Lite/E2 On-Board, EZ-CUBE2, and COM Port emulators, this is one of:

F — a verified trace frame

S — a verified trace frame based on section trace

+ — a calculated trace frame

Fi — an interrupt trace frame

+? — a trace frame that might have been skipped (it cannot be determined whether it has been executed)

... — a trace restart (to resynchronize the trace and the execution)

Address

The address of the executed instruction.

Opcode

The operation code of the instruction associated with the trace frame. After the hexadecimal value, extra information can be displayed—x2 if two instructions were executed and C if the instruction was read from the I-Cache.

Trace

The collected sequence of executed machine instructions. Optionally, the corresponding source code can also be displayed.

Toolbar

The toolbar is available for the supported hardware debugger drivers, and is the same as in the Trace window. For information about the toolbar, see Trace window.

However, the Save button opens a standard Save dialog box also in the E1, E2, E2 Lite/E2 On-Board, EZ-CUBE2, and COM Port emulators.