AMD 250 Manuale Utente
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Appendix C
Instruction Latencies
269
Software Optimization Guide for AMD64 Processors
25112
Rev. 3.06
September 2005
Appendix C Instruction Latencies
This appendix provides a complete listing of all AMD64 instructions, along with their encodings,
decode types, and execution latencies. For more information on these instructions, see volumes 3, 4,
and 5 of the AMD64 Architecture Programmer’s Manual (order# 24594, 26568, and 26569).
decode types, and execution latencies. For more information on these instructions, see volumes 3, 4,
and 5 of the AMD64 Architecture Programmer’s Manual (order# 24594, 26568, and 26569).
Note: Some prior AMD documents referred to one group of instructions as MMX™ technology
extensions. Those instructions are still supported by the AMD Athlon™ 64 and
AMD Opteron™ processors, but are documented with the SSE instructions in this guide. (The
MMX™ technology instructions remain a separate group.)
AMD Opteron™ processors, but are documented with the SSE instructions in this guide. (The
MMX™ technology instructions remain a separate group.)
The instruction entries in this appendix are grouped into categories as indicated in the following table
and are presented within each category in alphabetical order by mnemonic:
and are presented within each category in alphabetical order by mnemonic:
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