Assembly Language Programming For PC and Laptop Computers

Creating BOOTABLE programs with plain Assembly Language, was difficult at the beginning, and here are very short instructions on how to boot your programs. Booting your programs was often called Operating systems programming, because such a program runs completely on its own inside the computer, and because when you add more to your Bootable programs, they sometimes turn into a new Operating system developed by you. But my programming was only for fun and enjoyment.This is an old book, and the method in it can only work with older computers which can Boot with ordinary legacy Bios.Unfortunately Microsoft has tried deliberately to make Operating systems programming difficult and hard to start, because they do not want other companies to create new operating systems, but it's your right to create programs for your own computer. Booting your programs this way is for older computers, and the Booting can either be done with a DVD, or with a USB memory stick. For pleasure and enjoyment I used to boot my programs from a USB memory stick. The book includes some essential information about these two techniques. And I suggest you look up more on the internet, but the book includes some rare and very difficult to find information.Included in the book, there are short example programs, and though several of these are ready to use, several others are not intended to be used, but they can illustrate a technique. It isn't clear which are ready to use.The last chapter about programming the Extended Host Controller Interface, EHCI, is only intended to show some basic ideas, no more.