llvm-mos VS mega65-adventure

Too late: https://github.com/llvm-mos/llvm-mos

I don’t think it’s in the official repo, but yes:

https://github.com/llvm-mos/llvm-mos

You could look at LLVM-MOS, the port of LLVM to the 6502. It might give you some ideas around the problems to solve https://llvm-mos.org/wiki/Welcome https://github.com/llvm-mos/llvm-mos

The MEGA 65 doesn't appear to have shipped yet. The best data I could find is the MEGA 65 is based on a "GS4510". The "GS4510" is compatible with a "4502", which in turn is compatible with the 65CE02. The 65CE02 uses a different manufacturing process but the same ISA as the 6502, which is supported by rust-mos and lvm-mos](https://github.com/llvm-mos/llvm-mos).

It really is a cool project. https://github.com/cc65/cc65

It provides some template configuration files describing different memory layouts. And provides common libraries for input/output.

There's also a LLVM fork for MOS: https://github.com/llvm-mos/llvm-mos

They've got some interesting hacks with ZeroPage memory and register allocation: https://llvm-mos.org/wiki/Code_generation_overview

Interesting if you geek out on that kind of research.

Using llvm-mos, rust-mos, a lot of time compiling compilers and support from Mariusz (the rust-mos author), I was finally able to program like it was 1982...

SNES: 65C816 derivative, may eventually be supported by https://github.com/llvm-mos/llvm-mos

What are you on about, can you clarify? Rust can compile in no-std/embedded style just as fine (or better) than C can for basically any ARM or RISCV based processor, and quick googling shows this hal for nearly all pi needs and even MEGA65 is "as supported" (read: not at all officially by anything, fan-only) as any current C compiler. Setting up rust for a new target, so long as the code-gen is supported somehow by LLVM, LLVM plugin, LLVM IR transpiler (and maybe libgcc-jit sort of soon) is just as painful or unpainful as setting up a whole team to work via C/C++ with comparable testing harnesses. This doesn't mean easy and is an area Rust is still improving rapidly by the various enterprise agencies (Ferrous systems, Oxide, more I can't remember...) who specifically want to bring rust to such low end hardware because frankly both C and C++ suck with vendor proprietary tool chains and quirks.