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Notes on the Forth programming language.
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forth.md

Learn the Language

About Forth

Forth Related Sites

Implementing Forth

The outer interpreter is (very roughly):

skip spaces
read token up to next space
search dictionary for token
if found
    if interpreting or word is immediate
        execute word
    else
        compile word
else if token is number
    if interpreting
        push number on stack
    else
        compile number as literal
else
    abort

https://www.reddit.com/r/Forth/comments/229sl5/i_want_to_write_my_own_forth_interpreter_where_do/

Examples

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