This command gives the following information about the selected frame:
stack frame address
current PC address
saved PC address
calling frame address
frame arguments and associated addresses
address of the local variables
stack pointer address for the previous frame
saved registers and associated location.
Each frame is assigned a number that increases from the bottom frame (zero) through the call stack to the top frame that is the start of the application.
Specifies the frame number.
If no arguments are specified then the stack frame information for the current frame pointer is displayed.