This book aims to demystify the Intel 80486 microprocessor for assembly language programmers. Building upon the approach of a previous handbook for the 80386, the authors provide a detailed exploration of the 80486's architecture and programming capabilities. The text is designed to be accessible to programmers of all skill levels, offering precise and explicit explanations of the chip's functionalities. Accuracy has been verified by Intel engineers.

This technical guide is presented as a direct successor to a previous handbook, indicating a focus on providing in-depth, practical information for a specific audience. The explicit mention of review by Intel engineers suggests a high degree of technical accuracy and authority. The book is positioned to serve assembly language programmers seeking to understand and utilize the 80486 processor.