Dev tools · alternatives · 2026
24 alternatives to 0asm: x86 assembler in 512 bytes of x86 machine code
x86 assembler in 512 bytes of x86 machine code. Contribute to kvakil/0asm development by creating an account on GitHub.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. 0asm: x86 assembler in 512 bytes of x86 machine code launched in 2019; newer entries below may have overtaken it.
- 1
Tiny assembler for 8086/8088, able to run over DOS for 8086/8088 machines. - nanochess/tinyasm
2019 · github.com · its alternatives →
- 2
A complete compiler for a simple language (in less than 150 LoC) - 00_readme.md
2022 · gist.github.com · its alternatives →
- 3
simple virtual machine and assembler. Contribute to ronsoros/rvm development by creating an account on GitHub.
2016 · github.com · its alternatives →
- 4
Readable macroassembler for CLR IL. Contribute to akalenuk/milasm development by creating an account on GitHub.
2023 · github.com · its alternatives →
- 5
Hello, World! written in seemingly "gibberish" x86 assembly using obfuscation on the assembly and machine code -level - phoreverpheebs/gibberish
2023 · github.com · its alternatives →
- 6H1
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 →
- 7
Faster LZMA decoder for x86 CPUs (patch for XZ Utils). - faster_lzma_decoder_x86.patch
2021 · gist.github.com · its alternatives →
- 8
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 →
- 9
I wanted to see how fast an isolated code sandbox could start if I never had to boot a fresh VM. So instead of launching a new microVM per execution, I boot Firecracker once with Python and numpy already loaded, then snapshot the full VM state. Every execution after that creates a new KVM VM backed by a `MAP_PRIVATE` mapping of the snapshot memory, so Linux gives me copy-on-write pages automatically. That means each sandbox starts from an already-running Python process inside a real VM, runs the code, and exits. These are real KVM VMs, not containers: separate guest kernel, separate guest…
Mar 2026 · github.com · its alternatives →
- 10
Simple CPU model written in 60 lines of C with 8 registers and basic instructions - wkoszek/cpu60
2015 · github.com · its alternatives →
- 11
Heap based scheme machine. GitHub Gist: instantly share code, notes, and snippets.
2025 · gist.github.com · its alternatives →
- 12AT
A 3.16M-parameter INT4 transformer running entirely in the on-chip memory of a Xilinx Kria KV260. Zero DRAM in the token loop, 59,965 tok/s on the fabric, bit-exact. Chat with it live.
Aug 2026 · mikeayles.com · its alternatives →
- 13
(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 →
- 14
A JVM assembler for the modern age. Contribute to roscopeco/jasm development by creating an account on GitHub.
2022 · github.com · its alternatives →
- 15
Hi! me and my friends together built an 8 bit CPU implemented in Logisim purely from scratch. The control unit of this system does not implement the generic microcode ROM or any kind of RAM. This was made purely from discrete logic gates and coded the system to run different programs. key features: Custom 16-instruction Harvard ISA, 8-bit fixed format, 4 general purpose registers Hardwired control unit built entirely from AND/OR gate logic matrix Dual-phase clocking to eliminate race conditions Bootstrap Control Unit that cold-boots via ROM-to-RAM transfer Early-exit conditional…
Jun 2026 · github.com · its alternatives →
- 16RD
2019 · redasm.io · its alternatives →
- 17
Battery info program for x86-64 Linux laptops in 307 bytes of machine code - meribold/btry
2024 · github.com · its alternatives →
- 18
Programming language that compiles into a x86 ELF executable. - riicchhaarrd/ocean
2021 · github.com · its alternatives →
- 19
32-bit RISC-V CPU in ~800 lines of C89. Contribute to mnurzia/rv development by creating an account on GitHub.
2023 · github.com · its alternatives →
- 20
Explore large language models in 512MB of RAM. Contribute to jncraton/languagemodels development by creating an account on GitHub.
2023 · github.com · its alternatives →
- 21
Repo: https://github.com/valdanylchuk/xcc700 Hi Everyone! I just wrote my first compiler! - single pass, recursive descent, direct emission - generates REL ELF binaries, runnable using ESP-IDF elf_loader - very basic features only, just enough for self-hosting - treats the Xtensa CPU as a stack machine for simplicity, no register allocation / window usage - compilable on Mac, probably also Linux, can cross-compile for esp32 there - wrote for fun / cyberdeck project Sample output from esp32: xcc700.elf xcc700.c -o /d/cc.elf [ xcc700 ] BUILD COMPLETED >…
Dec 2025 · github.com · its alternatives →
- 22
Micro LZMA decoder. Contribute to ilyakurdyukov/micro-lzmadec development by creating an account on GitHub.
2022 · github.com · its alternatives →
- 23
Compiler for a small language into x86-64 Assembly - MauriceGit/compiler
2020 · github.com · its alternatives →
- 24
A minimal C runtime for Linux i386 & x86_64. Contribute to lpsantil/rt0 development by creating an account on GitHub.
2015 · github.com · its alternatives →
Also compare
- 8086/8088 assembler that runs over 8088 hardware with modern syntax alternatives
- A compiler and VM for a simple language, in 150 lines of code alternatives
- Simple virtual machine, assembler, and C compiler alternatives
- A readable macroassembler for .NET that no one asked for alternatives
- 'Hello, World ' in x86 assembly, but make it gibberish alternatives
- Homebrew 16bit CPU from 74HC logic with C compiler and Unix-like OS 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 →