eForth Overview: C.H. Ting

Before diving directly into eForth, I would like to discuss the general principles of Forth language. The language consists of a collection of words, which reside in the memory of a computer and can be executed by entering their names on the computer keyboard. A list of words can be compiled, given a new name and made a new word. In fact, most words in Forth are defined as lists of existing words. A small set of primitive words are defined in machine code of the native CPU. All other words are built from this primitive words and eventually refer to them when executed.