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IA-32 Intel® Architecture Processor Family Overview
1-5
SSE and SSE2 instructions also introduced cacheability and memory
ordering instructions that can improve cache usage and application
performance.
For more on SSE, SSE2, SSE3 and MMX technologies, see:
IA-32 Intel® Architecture Software Developer’s Manual, Volume 1:
Chapter 9, “Programming with Intel® MMX™ Technology”;
Chapter 10, “Programming with Streaming SIMD Extensions
(SSE)”; Chapter 11, “Programming with Streaming SIMD
Extensions 2 (SSE3)”; Chapter 12, “Programming with Streaming
SIMD Extensions 3 (SSE3)”
Summary of SIMD Technologies
MMX™ Technology
MMX Technology introduced:
• 64-bit MMX registers
• support for SIMD operations on packed byte, word, and doubleword
integers
MMX instructions are useful for multimedia and communications
software.
Streaming SIMD Extensions
Streaming SIMD extensions introduced:
• 128-bit XMM registers
• 128-bit data type with four packed single-precision floating-point
operands
• data prefetch instructions
• non-temporal store instructions and other cacheability and memory
ordering instructions
• extra 64-bit SIMD integer support