i'd recommend looking at how this works as a very tiny com file... its a bit out of date but reveals a lot about how an OS can choose different ways to achieve

i'd recommend looking at how this works as a very tiny com file... its a bit out of date but reveals a lot about how an OS can choose different ways to achieve this, including how it can implement system calls differently and how simple an executable loader used to be... http://stackoverflow.com/questions/284797/hello-world-in-less-than-20-bytes http://stackoverflow.com/questions/284797/hello-world-in-les...