like with. If you then type 
NEW
 again it will not affect these twenty bytes.
 
    The top of memory is a good place for 
USR
 routunes, safe (even from 
NEW
) and immobile. Its main 
disadvantage is that it is not saved by 
SAVE
.
 
Summary
 
    Functions: 
USR
 
    Statements: 
NEW
 
Exercises
 
1. Make RAMTOP equal to 16700 and then execute 
NEW
. You will get an idea of what happens when the 
memory gets full.