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A project used just a single prompt to have Opus 5.5 run fully autonomously in Ultracode mode for around 30 hours, building a CPU, memory, assembler, a mini operating system, and a runnable game from scratch, starting with logic gates.
antirez 发布了 c64-hw-simulator，一个逐引脚模拟 Commodore 64 主板的工具，可模拟断脚、短路、拔出芯片等故障并观察电路级结果，用于学习 C64 原理和辅助硬件维修诊断。
The author implemented a full stack for running large language models on hardware from scratch, including the model, GPU instruction set, compiler, and simulator, to make each layer understandable. The project is open-sourced on GitHub.
Chiplab is a product that lets you test firmware on a virtual chip without needing physical hardware.
The Visual 6502 is a JavaScript-based simulator that provides a visual, transistor-level simulation of the 6502 microprocessor, designed for educational and reverse-engineering purposes.
VirtualPC is an open-source 8-bit computer simulator that can train small neural networks from assembly code, demonstrating machine learning at the bare-metal level.
S-100 Virtual Workbench is a tool for emulating or simulating S-100 bus systems, enabling retro computing enthusiasts to experiment with vintage hardware virtually.