t / to

The t command performs a trace (single step) operation.

Format

The format for this command is:

 t [-vbci] 
   or:
to [-vbci]

where:

-v	lists each step (verbose).
-b	captures only branches.
-c	captures only funtion calls.
-i	stops on invalid program counter.
cnt	traces cnt instructions and stops.

The t command executes the instruction addressed by the current value of the user PC register.

The to command is similar to the t command, except that the to command treats an entire procedure as a single step.The command or commands that are executed on completion of the single step is determined by the value of the environment variable brkcmd.