Matrix Math eXtensions
<processor> (MMX) (NOT an acronym for "MultiMedia eXtension", according
to Intel, but an Intel brand name) A set of 57 extra instructions built into
some versions of Intel's Pentium microprocessors for supporting SIMD operations
on multimedia and communications data types.
MMX-enhanced processors are due to be released early in 1997. They will be fully
compatible with previous Intel processors and software but software will only
benefit if it is written to use the new instructions. They can handle many
common multimedia operations, such as digital signal processing, normally
handled by a separate sound card or video card.
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Math eXtensions » MAU » Mauchly, John W. » mawk