1 IntroductionStaapl is a Scheme to Forth metaprogramming system. To illustrate the general idea we’re going to use a concrete application: the Forth compiler for the 8-bit Microchip PIC18 microcontroller architecture. This section uses REPL interaction with some example code written on top of the compiler to demonstrate the code generation process. 1.1 Forth to Machine CodeThe code> form provided