rumbledethumps / examples-llvm-mos

RP6502 Examples for LLVM-MOS

A few examples using LLVM-MOS. This is EXPERIMENTAL.

LLVM PATH notes

LLVM-MOS must be in your PATH. However, this may conflict with other LLVM installations, like the one that comes with your operating system. In that case, you can adjust the path for only CMake with a VSCode setting. Add a file .vscode/settings.json with the following contents. Adjust the path for where you installed LLVM-MOS.

{
    "cmake.environment": {
        "PATH": "~/llvm-mos/bin:${env:PATH}"
    }
}

Linux Tools Install:

• VSCode. This has its own installer.
• An install of LLVM-MOS. See PATH notes above.
• The following tools installed from your package managers:
  • sudo apt-get install cmake python3 pip git build-essential
  • pip install pyserial

Windows Tools Install:

• VSCode. This has its own installer.
• An install of LLVM-MOS. See PATH notes above.
• Install python by typing python3 which will launch the Microsoft Store where you start the install. If python runs, this has already been done, exit python with Ctrl-Z plus Return.
• Install the python serial library with pip install pyserial.
• winget install -e --id Kitware.CMake.
• winget install -e --id GnuWin32.Make. Add "C:\Program Files (x86)\GnuWin32\bin" to your path.
• winget install -e --id Git.Git.

Getting Started:

Go to the GitHub template and select "Use this template" then "Create a new repository". GitHub will make a clean project for you to start with. Then you can download the repository and open the files.

$ git clone [path_to_github]
$ cd [to_where_it_cloned]
$ code .

Install the extensions and choose the default or obvious choice if VSCode prompts you. Choose "[Unspecified]" for the CMake kit.

You can build with F7. Running a program is done with "Run Build Task..." CTRL-SHIFT-B. If the default communications device doesn't work, edit ".rp6502" in the project root folder. This file will be created the first time you "Run Build Task..." and will be ignored by git.

Edit CMakeLists.txt to add new source and asset files. It's pretty normal C/ASM development from here on.