I have even simpler version: https://github.com/lalinsky/zio/blob/main/src/coroutines.zig https://github.com/lalinsky/zio/blob/main/src/coroutines.zig Which h

I have even simpler version: https://github.com/lalinsky/zio/blob/main/src/coroutines.zig https://github.com/lalinsky/zio/blob/main/src/coroutines.zig Which has the benefit of Zig single unit of compilation, that the compiler can be smarter about which registers need to be saved.