Lots of them just have their own toolchain and language subset. Make porting literally impossible. Because you don't know how the original one works. And c lik

Lots of them just have their own toolchain and language subset. Make porting literally impossible. Because you don't know how the original one works. And c like language on these embedded devices are probably due to the fact that it's the easiest way to implement a programming language(abstraction) that work on bare metal.