Contents
Chapter 1
SIMD Technology .................................................................................................................... 1-2
MMX™ Technology..................................................................................................... 1-5
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Microarchitecture............................................................................................ 1-8
The Front End........................................................................................................... 1-11
The Out-of-order Core .............................................................................................. 1-12
Retirement ................................................................................................................ 1-12
Front End Pipeline Detail............................................................................................... 1-13
Prefetching................................................................................................................ 1-13
Decoder .................................................................................................................... 1-14
Execution Trace Cache ............................................................................................ 1-14
Branch Prediction ..................................................................................................... 1-15
Execution Core Detail..................................................................................................... 1-16
Caches...................................................................................................................... 1-19
Data Prefetch............................................................................................................ 1-21
Loads and Stores...................................................................................................... 1-24
Store Forwarding ...................................................................................................... 1-25
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The Front End........................................................................................................... 1-27
Data Prefetching ....................................................................................................... 1-29
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EM64T) ........................................................ 1-7
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