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Work · February 19, 2022

Arduino 6502 Controller

The 6502ctl project is an Arduino controller for the 6502 CPU. The controller controls all 6502 pins, including the clock signal and interrupts, and simulates an address and data bus with attached memory and an output peripheral. The controller includes a clock-cycle debugger with disassembler. An assembler is also included with the project.

Arduino 6502 Controller launched on February 19, 2022 with 52 votes, #910 of 2,645 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 4 years on.

In plain words

Arduino 6502 Controller is a project that uses Arduino hardware to control and test a 6502 CPU. It manages all the CPU's pins, including clock and interrupt signals, and simulates memory and peripherals connected via address and data buses. The project includes tools for developers: a clock-cycle debugger with disassembler for analyzing CPU execution, and an assembler for writing 6502 code. It is intended for hobbyists and engineers working with 6502-based systems.

written from the facts on this page · September 2026

From the sources

Arduino 6502 Controller. Contribute to billziss-gh/arduino-6502ctl development by creating an account on GitHub.

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