Life & fun · alternatives · 2026
24 alternatives to 10biForthOS a full 8086 OS in 46 bytes
10biForthOS = 10b(2) i(nstructions) Forth OS is a very primitive Forth with only two instructions: 1 is compile 0 is execute It is heavily inspired by Frank Sergeant 3-Instruction Forth (https://pygmy.utoh.org/3ins4th.html)
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
Bootstrapping a Forth interpreter from hand-written tiny ELF binary. Just for fun. - GitHub - nineties/planckforth: Bootstrapping a Forth interpreter from hand-written tiny ELF binary. Just for fun.
2021 · github.com · its alternatives →
- 2
A simple bare-metal forth for the PDP-10. Contribute to aap/tenth development by creating an account on GitHub.
2015 · github.com · its alternatives →
- 3
H2 Forth CPU▲120A Forth CPU and System on a Chip, based on the J1, written in VHDL - howerj/forth-cpu
2019 · github.com · its alternatives →
- 4EFEasy Forth▲122
2015 · skilldrick.github.io · its alternatives →
- 5
2016 · youtube.com · its alternatives →
- 6
Hi HN, I’m Dvir, a young developer. Last year, I got rejected after a job interview because I lacked some CPU knowledge. After that, I decided to deepen my understanding in the low level world and learn how things work under the hood. I decided to try and create an OS in C and ASM as a way to broaden my knowledge in this area. This took me on the most interesting ride, where I’ve learned about OS theory and low level programming on a whole new level. I’ve spent hours upon hours, blood and tears, reading different OS theory blogs, learning low level concepts, debugging, testing and working on…
Oct 2025 · github.com · its alternatives →
- 7
This is ymawky, a static file web server for MacOS written entirely in ARM64 assembly. It supports GET, PUT, DELETE, HEAD, and OPTIONS requests, and supports Range: bytes=X-Y headers (which allows scrubbing for video streaming). It decodes percent-encoded URLs, strictly enforces docroot, serves custom error pages for any HTTP error response, supports directory listing, and has (some) mitigations against slowloris-like attacks. I’ve also written a more detailed writeup here: https://imtomt.github.io/ymawky/
May 2026 · github.com · its alternatives →
- 8IM
https://github.com/siraben/zkeme80 As a successor to my previous project[1], a Forth interpreter that runs under the TI operating system, I decided to go all the way and write my own assembler and OS. This is a project I've been working on for just over a month, but there's still a long way to go. The idea is to have a kernel + the Forth interpreter and compiler, then users can modify how their operating system works through the Forth files. My Forth implementation is mostly ANS-standard conforming, so most code should work right out of the box without any problem. See…
2019 · its alternatives →
- 9IM
https://github.com/siraben/ti84-forth Hi HN! For the past year I've been getting into programming in Z80 assembly (especially for the TI-84+). More recently I've been learning about the Forth programming language and after a lot of searching online (in vain) for a Forth interpreter for the TI-84, I decided to write one myself. It's been fun demoing this to others, because it's a very unexpected use of a calculator. It's my largest project to date, and I'm interested to know what the HN community thinks, please feel free to critique my code! -- Ben
2018 · its alternatives →
- 10
An experimental Python-to-C transpiler and domain specific language for embedded high-performance computing - zanellia/prometeo
2021 · github.com · its alternatives →
- 11
(Very) basic UNIX-like operating system built when I was younger - SamyPesse/devos
2013 · github.com · its alternatives →
- 12IM
I've wanted to make my own OS since I started programming. Now, 5 years later, I did it (kind of). Sure, it is really basic, has very little functionality, but I made it and I'm proud of that. Oh, and I'm just 16 btw.
2025 · jotalea.com.ar · its alternatives →
- 13
a Forth (for you) too. Contribute to codr7/forthy2 development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 14TK
2019 · 0x0.st · its alternatives →
- 15
The core question: how did HP's scientific calculators actually work at the gate level? That rabbit hole led to building one from scratch. The architectural decision everything else follows from: a decimal calculator should store numbers as BCD — one decimal digit per 4-bit nibble. A standard byte-oriented CPU (Z80, 6502) fights that layout constantly. So I designed a small custom CPU in Verilog where 4 bits is the natural data width and memory is nibble addressable. What the project covers: - Custom CPU: Harvard architecture, 12-bit ISA, 8-state execution FSM, hardware stack guard with a…
May 2026 · github.com · its alternatives →
- 16
(sorry about double posting, I forgot to put Show HN in front in the original https://news.ycombinator.com/item?id=43863689 thread) Hey all, As a follow up to my relatively successful series in x86 Assembly of last year[1], I started making an OS that fits in a boot sector. I am purposefully not doing chain loading or multi-stage to see how much I can squeeze out of 510bytes. It comes with a file system, a shell, and a simple process management. Enough to write non-trivial guest applications, like a text editor and even some games. It's a lot of fun! It comes with an SDK and…
2025 · github.com · its alternatives →
- 17
A multitasking monolithic Kernel based x86 targeting Operating System written in C# from scratch aiming for high-level implementation of drivers in managed environment. - amaneureka/AtomOS
2017 · github.com · its alternatives →
- 18
This is my operating system that I've been working for the past 2 years. All of the code is written exclusively by me except from ported software. banan-os has a monolithic kernel targeting x86 (i686) and x86_64 architectures. The project consists of bootloader, kernel and userspace libraries (libc, libGUI, libFont, ...). It also uses my custom C++ standard library partly based on stdc++. Currently I have basic TTY and GUI environment with some of the basic UNIX utilities like cp, ls and stat. I have basic support for USB (keyboard/mouse/storage), disks (NVMe, AHCI), custom…
2024 · github.com · its alternatives →
- 19IB
This weekend I created stacklib.h - a single-header library that brings Forth-style stack operations to C. It implements a basic interpreter with: - Stack operations (push/pop/dup/swap/over/drop) - Arithmetic (+, -, *, /) - Output (., emit, cr) - Stack inspection (.s, depth) Example usage: Stack s; stack_init(&s); dict_init(); exec(&s, "10 20 + ."); // Prints "30" exec(&s, "1 2 3 4 .s"); // Shows stack contents The library is self-contained, requires no dependencies, and handles basic error checking. It was inspired by wanting to understand…
2025 · its alternatives →
- 20
I've built many interpreters over the years, and Bolt represents my attempt at building the scripting language I always wanted. This is the first public release, 0.1.0! I've felt like most embedded languages have been moving towards safety and typing over years, with things like Python type hints, the explosive popularity of typescript, and even typing in Luau, which powers one of the largest scripted evironments in the world. Bolt attempts to harness this directly in the lagnauge rather than as a preprocessing step, and reap benefits in terms of both safety and performance. I intend to be…
2025 · github.com · its alternatives →
- 21
Micro Kernel / Bootloader for Ben Eater's 6502 Computer - janroesner/sixty5o2
2020 · github.com · its alternatives →
- 22H1
This is a 16bit CPU+Minicomputer from pure 74 series logic. It has user/kernel modes, virtual memory, prioritized IRQ's and DMA. It has a full C compiler and a unix-like OS. It's still in development.
2023 · sol-1.org · its alternatives →
- 23
Programmer chronicles.
2020 · kuon.ch · its alternatives →
- 24
Yet Another Forth Core... Contribute to inforichland/yafc development by creating an account on GitHub.
2014 · github.com · its alternatives →
Also compare
- PlanckForth – Bootstrapping an interpreter from handwritten 1kb binary alternatives
- A simple bare-metal Forth for the PDP-10 alternatives
- H2 Forth CPU alternatives
- Easy Forth alternatives
- Homemade 32-bit CPU and OS (2015) [video] alternatives
- MyraOS – My 32-bit operating system in C and ASM (Hack Club project) alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →