30 min codex-cli with GPT-5.2 hihg made fully working NES emulator in pure C with mapper 0
A Reddit post claims that an AI system called GPT-5.2 was used to create a fully functional NES emulator in C in just 30 minutes.
Why it matters
This demonstrates the rapid progress in AI-powered software engineering and the potential for AI systems to revolutionize how complex applications are built.
Key Points
- 1AI system GPT-5.2 was used to create a NES emulator in C
- 2The emulator is fully functional and supports mapper 0
- 3The entire development process took only 30 minutes
Details
The post describes an impressive feat of using an advanced AI system called GPT-5.2 to rapidly develop a complete NES emulator in the C programming language. The emulator is claimed to be fully functional and supports mapper 0, a common cartridge type for the original Nintendo Entertainment System. What makes this particularly noteworthy is the extremely short development time of just 30 minutes, showcasing the potential of large language models and AI-assisted coding to accelerate software development.
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