MEGA65 Programming Playground

This is a playground for testing programming on the MEGA65 8-bit computer.

Rust using llvm-mos

Update: See the mos-hardware crate for using Rust on C64 inspired computers!

Amazingly, most core Rust features (no_std only) seem to work, including iterators and functional style programming. The hello_rust directory contains a simple example that compiles to a C64 .prg using llvm-mos from wrapped Rust code. It requires a working Rust installation and the llvm-mos-sdk. Compile and run on MEGA65 in c64 mode with:

cd hello_rust
make
make run # emulate in xemu

Things to do:

• Added convenience peek and poke
• Begin mega66 rust module with hardware registers (see e.g. KickC headers)
• Inline assembler? core::arch::asm seem to work but unknown upcodes
• Start in MEGA65 mode
• Wrap mega65-libc to Rust?
• Build
  • Use cargo
  • Avoid c wrapper

Useful links

• https://github.com/mlund/mos-hardware
• http://forum.6502.org/viewtopic.php?p=84048#p84048
• https://gergo.erdi.hu/blog/2021-09-18-rust_on_the_mos_6502__beyond_fibonacci/
• Atari rust example

Why?

Because I like MEGA65 and I like Rust.