Forth Lessons

This is a series of lessons on the Forth programming language and Open Firmware. New lessons are added periodically, so check back frequently or watch the page if you are interested.

• Forth Lesson 0 - Motivation and Basic Syntax
• Forth Lesson 1 - Stack and Numbers
• Forth Lesson 2 - Stack diagrams and Comments
• Forth Lesson 3 - Arithmetic Operators and Calculations
• Forth Lesson 4 - Making New Definitions
• Forth Lesson 5 - Introspection
• Forth Lesson 6 - Variables and Data Storage
• Forth Lesson 7 - Control Structures
• Forth Lesson 8 - Strings
• Forth Lesson 9 - Open Firmware Device Tree Basics
• Forth Lesson 10 - Device Node Methods
• Forth Lesson 11 - Device Instances
• Forth Lesson 12 - Booting
• Forth Lesson 13 - Editing Files
• Forth Lesson 14 - Some Cute Hacks
• Forth Lesson 15 - The Forth Debugger
• Forth Lesson 16 - Finding PCI Physical Addresses
• Forth Lesson 17 - Virtual Address Mapping
• Forth Lesson 18 - Data Structures / Create Does>
• Forth Lesson 19 - More on Create Does>, Debugging and User Data
• Forth Lesson 20 - Open Firmware System Initialization
• Forth Lesson 21 - Vocabularies and search order
• Forth Lesson 22 - Using Forth Under Linux
• Forth Lesson 23 - Recipes
• Forth Lesson 24 - Device Tree Hacking

External links

See also the following pages for more forth information:

• A Beginner's Guide to Forth by J.V. Noble,
• Forth Interest Group (dissolved),
• Gforth,
• Gforth Manual,
• Starting Forth or Starting Forth by Leo Brodie, an excellent introductory book,
• Thinking Forth by Leo Brodie, about Forth Philosophy,
• Object-Oriented Forth deep diving into oof.fs.