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SSE(Streaming SIMD Extensions) A set of registers and instructions added to Intel CPU chips to improve multimedia performance, primarily video encoding and decoding. Starting with the Pentium III in 1999, eight 128-bit integer registers were added along with 70 new instructions. Eight more registers were added for 64-bit CPUs and additional instructions have been added in subsequent SSE evolutions (see tables below).
The SSE registers enable multiple sets of integer and floating point data to be calculated at the same time. SSE works with all standard data types, including double precision floating point and any integer from eight to 128 bits. See MMX and SIMD.
EVOLUTION OF SSENumberVersionof Year Inst. Features SSE 1999 70 single precision vectors SSE2 2000 144 double precision vectors 128-bit vector integer SSE3 2004 13 complex arithmetic MPEG encoding SSSE3 2006 32 MPEG decoding (SSSE = Suplemental SSE) SSE4 2007 54 graphics building blocks video & coprocessor acceleration
|SSE Integer Registers|
|Eight integer registers were added for 32-bit CPUs and eight more for 64-bit CPUs.|