int main(void)
{
   SystemInit(); // from Atmel
   Foo_Init(); // our code
   Bar_Init(); // our code
   Baz_Init(); // our code
   // many, many more, all hand-written
   for (;;) {
       Foo_Run(); // our code
       Bar_Run(); // our code
       Baz_Run(); // our code
       // many, many more, all hand-written       
   }
}