Note
The Funtoo Linux project has transitioned to "Hobby Mode" and this wiki is now read-only.
CPU FLAGS
This page lists processor instruction sets that can be enabled on Funtoo Linux systems using the CPU_FLAGS_* variables.
CPU_FLAGS_X86
Note
Highlighted rows indicate instruction sets that were not fully adopted by the other vendor, such as Intel instruction sets not adopted by AMD, or vice-versa.
| Flag | Introduced | By | Part of | Adopted in | Name | Links |
|---|---|---|---|---|---|---|
mmx | 1997 (Pentium MMX) | Intel | AMD K6 | MMX | Wikipedia | |
3dnow | 1998 (AMD K6-2) | AMD | 3DNow! | Wikipedia | ||
mmxext | 1999 | Intel | sse | Intel Pentium III (as part of SSE) and Athlon | AMD MMX Extensions | Wikipedia |
3dnowext | 1999 (AMD Athlon) | AMD | 3DNow! Extensions | Wikipedia | ||
sse | 1999 (Pentium III) | AMD | Athlon XP | Streaming SIMD Extensions (SSE) | Wikipedia | |
sse2 | 2001 (Pentium 4) | Intel | AMD Athlon 64/Opteron | Streaming SIMD Extensions 2 (SSE2) | Wikipedia | |
sse3 | 2004 (Pentium 4 Prescott) | Intel | AMD Athlon 64 (some steppings) | Streaming SIMD Extensions 3 (SSE3/PNI) | Wikipedia | |
ssse3 | 2006 (Core 2 Woodcrest) | Intel | AMD Bobcat/Bulldozer | Supplemental Streaming SIMD Extensions 3 (SSSE3) | Wikipedia | |
sse4_1 | 2007 (Core Penryn) | Intel | AMD Bulldozer | Supplemental Streaming SIMD Extensions 4.1 | Wikipedia | |
sse4a | late 2007 (Barcelona/Phenom) | AMD | N/A | Supplemental Streaming SIMD Extensions 4a | Wikipedia | |
sse4_2 | late 2008 (Nehalem/Core i7) | Intel | AMD Bulldozer | Supplemental Streaming SIMD Extensions 4.2 | Wikipedia | |
popcnt | 2007 | AMD | Intel Nehalem | POPCNT | Wikipedia | |
lzcnt | 2007 | AMD | Intel Haswell | LZCNT | Wikipedia | |
aes | 2008 | Intel | AMD Bulldozer | AES instruction set | Wikipedia | |
xop | 2011 (Bulldozer) | AMD | XOP Instruction set | Wikipedia | ||
avx | 2011 (Sandy Bridge) | Intel | AMD Bulldozer | Advanced Vector Extensions | Wikipedia | |
fma4 | 2011 (Bulldozer) | AMD | N/A | 4-operand fused multiply-add (a × b + c) | Wikipedia | |
fma3 | 2012 (Piledriver) | AMD | Intel Haswell | 3-operand fused multiply-add (a × b + c) | Wikipedia |