Xs-vm – A small virtual machine written in Python

In plain words

Xs-vm is a Python-based virtual machine that executes ARM-like assembly code, designed for educational purposes. It supports fundamental operations including function calls, recursion, and stack management through a simple instruction set. The project prioritizes ease of development and learning over performance, making it suitable for students and developers exploring how virtual machines work at a basic level.

written from the facts on this page · September 2026

From the sources

The purpose of this project is to implement a simple virtual machine, capable of executing assembly code similar to ARM. I will keep it simple (so probably no operation modes, interrupt handling, etc) because I built it for educational purposes. Yet, it's powerful enough to do things like recursion (see the Fibonacci example ). Why Python? Development speed, as opposed to performance, is the key priority for this project so Python fits in perfectly. $ cat demos/function_call.s mov r1, #1 mov r2, #3 bl func1 swi #0 func1 push lr add r0, r1, r2 pop pc $ python run.py demos/function_call.s Instructions executed: 7 Instructions executed by type:…from gedrap.github.io

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