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       
   }
}

##</code><code>##

static Func_t initFuncs[] = { Foo_Init, Bar_Init, Baz_Init, ... };
static Func_t runFuncs[] = { Foo_Run, Bar_Run, Baz_Run, ... };

int main(void)
{
    SystemInit(); // from Atmel
    for (size_t i=0; i<ARRAY_SIZE(initFunc); i++) {
        initFuncs[i]();
    }
    for (;;) {
        for (size_t i=0; i<ARRAY_SIZE(runFunc); i++) {
            runFuncs[i]();
        }
    }
}