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>There is no point in actually running build tools on a target MS-DOS system You see my point is that I'm deep into retro-computing thing. I would like to lea

• ncmncm 5y ago
  I used to compile Gcc 1.x on my 16 MHz 68010-based Apple SE/30 -- first with Apple's compiler, and later previous versions of itself. Enough was enough. Any machine you can build today will be retro 30 years from now. But what is more fun than artifical retro is programming microcontrollers. A project that needs a hundred or a thousand microcontrollers puts an upper bound on their cost and complexity, and so real, practical limits on their individual absolute capacity. At the end you get something you built yourself that you probably couldn't buy at any price. You can program microcontrollers in C++20, and use all the most powerful features of the language, which mostly happen at compile time on your host/development machine, downloading the resulting binary into your microcontrollers. You can debug on your host with gdb, talking bit-serial to a tiny gdb stub you have included in the code running on your microcontroller. If you want to use a newer language, Rust or Zig are probably not much harder to get generating code for microcontrollers.