King Arthur's Very Great Grandson

Newcomer Kenneth Kraegel wryly draws from myth and legend to craft a daring and inventive tale to delight adventurers of all ages.Henry Alfred Grummorson is the great-great-great-great-great-greatgreat grandson of Arthur, King of Britain. On his sixth birthday, adorned with a helmet and sword, Henry goes in search of adventure. He challenges a fire-breathing dragon to a fight, but the dragon prefers a game of blowing smoke rings. A cyclops wants only to have a staring contest. Even the griffin will not engage in "a battle to the uttermost" of the type Henry desires. Desperate for a real battle, strength against strength, might against might, Henry seeks out the fearsome leviathan. Has he met his match at last — or might he find something he didn’t know he was looking for? Children bold and imaginative will relate to Henry’s quest — and smile at its unintended consequences.

Some Assembly Required: Assembly Language Programming with the AVR Microcontroller

Design & Architecture
A family of internationally popular microcontrollers, the Atmel AVR microcontroller series is a low-cost hardware development platform suitable for an educational environment. Until now, no text focused on the assembly language programming of these microcontrollers. Through detailed coverage of assembly language programming principles and techniques, Some Assembly Required: Assembly Language Programming with the AVR Microcontroller teaches the basic system capabilities of 8-bit AVR microcontrollers. The text illustrates fundamental computer architecture and programming structures using AVR assembly language. It employs the core AVR 8-bit RISC microcontroller architecture and a limited collection of external devices, such as push buttons, LEDs, and serial communications, to describe control structures, memory use and allocation, stacks, and I/O. Each chapter contains numerous examples and exercises, including programming problems. By studying assembly languages, computer scientists gain an understanding of the functionality of basic processors and how their capabilities support high level languages and applications. Exploring this connection between hardware and software, this book provides a foundation for understanding compilers, linkers, loaders, and operating systems in addition to the processors themselves.