Slow Run Backward
    Slow Run Backward is another option provided under the Simulator menu.  This command will run backwards
through the currently loaded assembly program until the beginning of the program or a breakpoint is reached, but
with a delay between each line of the source file being executed.  This delay time is an integer entered by the user
and represents the number of seconds between execution of each line in the current source file.  The advantage of
this option is to allow the user to view ALL changes being made throughout the execution of a program.  This
command CANNOT be run until a file is loaded into the simulator (using Open or one of the recently opened files).