MMX


Also found in: Dictionary, Thesaurus, Medical, Acronyms, Wikipedia.

MMX

MMX

(MultiMedia EXtensions) A set of 57 additional instructions built into the Pentium MMX chip in 1996 for improved multimedia and modem performance. MMX included a multiply-add instruction that provided the capabilities of a DSP chip found on sound cards.

MMX CPUs had to be switched into MMX mode, which turned the first 64 bits of the CPU's eight 80-bit floating point registers into MMX registers. When 8, 16 or 32-bit integers were loaded into the registers, they could be added and multiplied simultaneously. Starting with the Pentium III, MMX was superseded by Intel's Streaming SIMD Extensions (SSE), and floating point and multimedia operations were no longer mutually exclusive (see SSE).


MMX Registers
Simultaneous operations were performed when integers were loaded into the MMX registers.
References in periodicals archive ?
Meanwhile, the Folha de S Paulo paper reported that Trafigura was carrying out due diligence on MMX as well.
With over a decade providing enterprise management solutions for organizations of every size, Beetext's Flow MMX integrates robust features into its workflow platform that reflect true user experience and input.
Gerald Proehl, president and chief executive officer of Santarus, said that the company is pleased to reach this significant milestone in the budesonide MMX Phase III clinical programme.
Other multimedia-authoring tool manufacturers, such as Adobe, Microsoft, and IBM have aligned themselves with MMX, which means consumers will be seeing MMX-optimized game and entertainment CD-ROM products start to trickle into the market sometime this year.