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Line 1: {{Floats}} ~~==MMX==~~ {{stub}} MMX is a SIMD technology (single instruction, multiple data) introduced by Intel with ther P5 "Pentium" processor line. It has been superceeded by [[SSE]].▼ ~~===Introduction===~~ ▲MMX is a SIMD technology (single instruction, multiple data) introduced by Intel with ther P5 "Pentium" processor line. ===~~Detection~~CPUID bits=== ~~To detect MMX~~ The bit for MMX can be found on CPUID page 1, in EDX bit 23. ~~<source lang="asm">~~ ~~;Check CPUID.01h EDX.MMX (EDX.23)~~ ~~mov eax, 0x1 ;0x.. is not needed, but standardizes~~ ~~cpuid~~ ~~test edx, 1<<23 ;EDX.MMX~~ ~~jnz .MMX ;If no jump MMX is not present~~ ~~</source>~~ ~~===Use today===~~ ~~It is unlikely that you will come across any MMX code today, as it has been superceded by [[SSE]], and compilers compile SSE code. However, it may be worthwile to be aware of MMX.~~ ==See Also== ~~===SSE===~~ [[SSE]] ~~===X87===~~ [[FPU]]

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