The Intel® Itanium® architecture is a unique combination of innovative features such as explicit parallelism, predication, speculation, and more. The architecture is designed to be highly scalable to fill the ever increasing performance requirements of various server and workstation market segments. The Itanium® architecture features a revolutionary 64-bit instruction set architecture (ISA), which applies a new processor architecture technology called EPIC, or Explicitly Parallel Instruction Computing. A key feature of the Itanium® architecture is IA-32 instruction set compatibility.
The Intel® Itanium® architecture software developer’s manual provides a comprehensive description of the programming environment, resources, and instruction set visible to both the application and system programmer. In addition, it also describes how programmers can take advantage of the features of the Itanium® architecture to help them optimize code.