T3X/0: A Minimalist Procedural Language

T3X/0 represents the most recent addition to the T3X language family. It is designed as a portable, recursive, and block-structured procedural language. Notably, it is $\approx 0$ (almost) typeless.

The compiler is provided under the 0BSD license or is simply in the public domain.

🧬 Language DNA

The design of T3X/0 is a hybrid of two classic influences:

📚 Educational & Formal Foundations

T3X/0 serves as the primary instructional tool for several publications:

Write Your Own Retro Compiler
Write Your Own Programs

For those seeking a rigorous mathematical or logical basis, the language is formally detailed in $\textit{The T3X Programming Language - Formal Definition}$ .

💻 Coding in T3X/0

To get started, you can use the Online Compiler. Below is the most basic implementation of a "Hello World" program.

Note: This specific example ~~follows strict standards~~ cuts a few corners for the sake of brevity. More robust versions are available in the documentation.

USE t3x: t; 
DO t.write(T3X.SYSOUT, "Hello, World!\r\n", 15); 
END

Learning Path

Read the Very Short T3X/0 Summary
Study the T3X/0 Language Reference
Explore Simple Examples
Analyze More (or Less) Serious Programs

🛠️ System Compatibility & Architecture

T3X/0 is highly versatile, boasting self-hosting capabilities on all supported platforms and the ability to cross-compile for various 16-bit systems.

Platform	Architecture / Version	Notes
Unix	386, x86_64, ARMv6, ARMv7	Full support
FreeBSD-386	Static backend	`LIBC` is not required
macOS-686	x86	Supported
DOS	2.0 and newer	Supported
CP/M 2.2	Z80 only	Supported
TCVM	Tcode Virtual Machine	Virtualized environment

📦 Download Options

The T3X/0 ecosystem provides several distribution packages depending on your needs:

File	Size	Contents	Target Audience
`t3x0-47.zip`	$\sim 350\text{KB}$	Full source (T3X/0, C, Z80/8086/386 ASM), TCVM in C, IDEs, and binaries.	Developers / Power Users
`t3x0-12.zip`	$\sim 200\text{KB}$	The version of the compiler frozen for the book's release.	Students of the book
`t3x0dos.zip`	$\sim 100\text{KB}$	DOS binaries, `NOE`/`VEE` editors, manual, and a path-patching utility.	DOS Users
`t3x0cpm.zip`	$\sim 310\text{KB}$	CP/M binaries, `NOE`/`VEE` editors, manual, and a drive-patching utility.	CP/M Users
`t3x0agon.zip`	$\sim 110\text{KB}$	8MB CP/M hard disk image.	Agon Light 2 Owners

⚠️ Critical Installation Notes for CP/M

Warning: Because CP/M lacks a directory structure, the ZIP file will extract all contents directly into your current working directory. To ensure compatibility with CP/M, the ZIP file is uncompressed.

🔧 Integrated Tooling

The package includes two specialized editors that function as lightweight IDEs by providing built-in compiler integration:

VEE: A WordStar-compatible editor.
NOE: A VI-compatible editor.