Forth has a REPL, and tiny Forths like this can work on microcontrollers that are unable to host a Python instance. (A microcontroller that can run Python is pr

Forth has a REPL, and tiny Forths like this can work on microcontrollers that are unable to host a Python instance. (A microcontroller that can run Python is pretty rare). Otherwise, your development cycle in C or assembly is "peer at datasheet, carefully enter bitwise arithmetic, compile, flash, wait several seconds for flashing to complete, debug."