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Soft 65C02

Soft65C02 is a suite of softwares dedicated to 65C02 machine code testing and debugging. It is composed of 3 parts:

  • soft65C02_lib: a Rust library to simulate a 65C02 processor you can use in your own developments.
  • soft65C02_tester: a CLI tool to run automated tests against 65C02 machine code.
  • soft65C02_studio: (yet to develop) a CLI tool to run, debug machine code and create tests scripts.

If you want to use the old CLI tool, the last working version is e7e6615.

This is a pet project so if you are interested into real world software regarding this processor, I suggest you have a look there and there.

GNU GPL V3.0 Rust Language

Why would you write another simulator for the 65C02?

I started this project in 2020 to learn the Rust language and … the 65C02. It has been a real pleasure to code in the Rust programming language, guys & girls, you have created awesome tools.

The Rust language OK, but why the 6502 and not a modern processor?

Because the 6502 comes from an age where processors were built by humans for humans. So the 6502 is a very good way to learn how processors work and are programmed. Plus, the 65C02 is cool.

It's all Ben Eater's fault by the way.

What's the actual state of this development?

The library is supposed to be wire to wire compatible with a real 65C02. The first version of this software (2020 → 2024) was a CLI against the library but if this was a good first step it was not testable enough for evolving. In 2024 I took advantage of free time to split the project in a Rust workspace to dig more in GUI part. I rewrote the Tester with parser tests this time. The Studio is yet to write.

License

These softwares are released under the terms of the GNU GPL v3.

In short, you are free to do what you want with this software but the author is NOT responsible in any case for whatever happens directly or indirectly as results of your use of the software. You are able to modify and/or share the software as long as it, with your changes, remains under the same license.

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see [https://www.gnu.org/licenses/].