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SIMD Integers
The Intel Single Instruction Multiple Data (SIMD) technology provides additional ways to define inte- gers (see Chapter 2, “The IA-32 Platform”). These new integer types enable the processor to perform arithmetic operations on a group of multiple integers simultaneously. The SIMD architecture uses the packed integer data type. A packed integer is a series of bytes that can represent more than one integer value. Mathematical operations can be performed on the series of bytes as a whole, working on the individual integer values within the series in parallel (this concept is described in Chapter 17, “Using Advanced IA-32 Features”). The following sections describe the differ- ent SIMD packed integer types available on Pentium processors.
--Professional Assembly Language, str 173, autor: Richard Blum