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Solaris™ Application Programming by Darryl Gove

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Chapter 3. The x64 Family of Processors

Chapter Objectives

This chapters gives an overview of the x64 architecture and history, covering how it has evolved, the changes to the instruction set, and the recent extensions to 64-bit. The chapter also describes the x64 assembly language and registers. By the end of the chapter, the reader will be able to comprehend simple assembly language statements, and will understand the improvements and trade-offs made in using the AMD64/EM64T instruction set.

The x64 Family of Processors

The x86 line of processors started in the late 1970s with the 16-bit 8086 processor, which was able to address up to 1MB of memory using a combination of 16-bit general registers and 16-bit segment registers that were shifted and ...

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