Show HN: Discrete6502 – one thing led to another
Summary
This article details discrete6502, a hardware project that reconstructs a MOS 6502 CPU at transistor level with 4,051 transistors across 5,421 components on a large board. It is an authentic, non-emulation implementation of the original NMOS design, verified in SPICE and by a full generation toolchain, with the design data hosted on GitHub as open-source hardware. The board includes a Raspberry Pi Pico as clock/memory emulator.