Show HN: I built an 8-bit CPU simulator in Python from scratch
Hacker News (score: 65)
Found: October 24, 2025
ID: 2074
Description
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Show HN: I built an 8-bit CPU simulator in Python from scratch
I built a tiny 8-bit CPU simulator in Python to better understand how computers work at a low level.
It visualizes registers, memory, and instructions in real-time, so you can actually see each operation as it happens. You can write simple assembly code and watch how the CPU executes it step by step.
The project is mainly for learning and experimentation, but Iād love feedback or ideas for improvement.
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