PALcode for Alpha Microprocessors

This document provides a comprehensive overview of the Privileged Architecture Library code (PALcode) for various Alpha microprocessors, including the 21064, 21064A, 21066, 21066A, 21068, and 21164 models. It serves as a reference for system designers on how to customize and implement PALcode within their systems. Key topics include:

• Fundamental Concepts: The role of PALcode in the Alpha architecture and the specialized PALmode environment.
• Design and Development: Detailed explanations of the PALcode build process, directory structure, and the use of the PALcode Violation Checker (pvc) to ensure code compliance.
• Integration: How PALcode interfaces with the Evaluation Board, bootstrap processes, and interrupt handling mechanisms.
• Console Services: Reference documentation for various console service functions for different Alpha models.

The guide also covers memory management, customization decision-making, and provides extensive support and ordering information.