To load a portion of your program, mark the region you want to load. To do this, move the cursor to the beginning of the first line you want to load and type ^<SPC> (or ^@ on many terminals). Emacs displays the message
Mark set
at the bottom of the screen. Move the cursor to the end of the portion of
the program you want to load. Then type <ESC> k r (for region).
Please note: When you mark the region to be loaded by the <ESC> k r command, be sure to include all the clauses for any procedures you are loading.