My understanding is fourth is still alive and well in the embedded world. A fourth compiler can be written in very few instructions, which is very important whe

My understanding is fourth is still alive and well in the embedded world. A fourth compiler can be written in very few instructions, which is very important when you don't have a lot of memory to work with. http://demin.ws/blog/english/2012/09/27/fcode/ http://demin.ws/blog/english/2012/09/27/fcode/