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Chapter 1 Introduction 3
Software Optimization Guide for AMD64 Processors
25112 Rev. 3.06 September 2005
Special Information
Special information in this guide looks like this:
❖ This symbol appears next to the most important, or key, optimizations.
Numbering Systems
The following suffixes identify different numbering systems:
Typographic Notation
This guide uses the following typographic notations for certain types of information:
Providing Feedback
If you have suggestions for improving this guide, we would like to hear from you. Please send your
comments to the following e-mail address:
code.optimization@amd.com
This suffix Identifies a
b Binary number. For example, the binary equivalent of the number 5 is written 101b.
d Decimal number. Decimal numbers are followed by this suffix only when the possibility of
confusion exists. In general, decimal numbers are shown without a suffix.
h Hexadecimal number. For example, the hexadecimal equivalent of the number 60 is
written 3Ch.
This type of text Identifies
italic Placeholders that represent information you must provide. Italicized text is also used
for the titles of publications and for emphasis.
monowidth Program statements and function names.