Exploring Itsy Forth
This post summarizes my exploration of Itsy Forth, a compact Forth interpreter designed for study and experimentation. The project covers:
- Understanding the core runtime helpers: getchar, outchar, docolon, dovar
- Investigating the dictionary and how words are defined and executed
- Observing interpreter architecture and flow, including colon-defined words and variable handling
- Examining runtime operation characteristics and memory layout
- Extracting instruction sequences using the provided Python tools
Itsy Forth provides a minimal but complete environment to explore Forth concepts, assembler integration, and low-level runtime mechanics. This is intended for learners who want to see how a small interpreter handles execution and word definition from the ground up.
The source code and further details are available on GitHub.
post added 2025-09-28 16:00:00 -0600 ~