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There is a base class (class, which allocates one cell for the object pointer) plus seven other words: to define a method, a variable, a class; to end a class, to resolve binding, to allocate an object and to compile a class method.

object       – a-addr         mini-oof       “object”

object is the base class of all objects.

method       m v "name" – m' v         mini-oof       “method”

Define a selector.

var       m v size "name" – m v'         mini-oof       “var”

Define a variable with size bytes.

class       class – class selectors vars         mini-oof       “class”

Start the definition of a class.

end-class       class selectors vars "name" –         mini-oof       “end-class”

End the definition of a class.

defines       xt class "name" –         mini-oof       “defines”

Bind xt to the selector name in class class.

new       class – o         mini-oof       “new”

Create a new incarnation of the class class.

::       class "name" –         mini-oof       “colon-colon”

Compile the method for the selector name of the class class (not immediate!).