Build your own bytecode VM, and see how languages really run
📰 Dev.to · I Want To Learn Programming
Learn how to build a basic bytecode VM in 30 lines of code and understand how languages like Python, Java, and C# really run
Action Steps
- Build a basic stack-based VM using a loop
- Implement a tiny compiler to generate bytecode for the VM
- Run the VM with the compiled bytecode to see the results
- Compare the performance of the VM with native code execution
- Extend the VM to support more instructions and features
Who Needs to Know This
Developers and programming language enthusiasts can benefit from understanding the underlying mechanics of bytecode VMs, which can improve their coding skills and knowledge of compiler design
Key Insight
💡 A bytecode VM is essentially a loop over a stack, making it a simple yet powerful concept to understand and implement
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🚀 Build your own bytecode VM in 30 lines of code and learn how Python, Java, and C# really run! 🤖
Key Takeaways
Learn how to build a basic bytecode VM in 30 lines of code and understand how languages like Python, Java, and C# really run
Full Article
Python, Java, and C# do not run your source code directly, they compile it to bytecode and run that on a virtual machine. The VM sounds intimidating but its core is a loop over a stack. Here it is in about 30 lines, plus a tiny compiler to feed it.
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