x86-64-v3-support - 26 main

The packages in the isa-support family probe for microprocessor Instruction
Set Architecture features such as SSE3. By refusing to install on machines
lacking a required feature, they allow ISA requirements to be handled in
terms of package dependencies.
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This is a mostly dummy package which checks for x86-64-v3 and
refuses to install on unsupported hardware.
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This is the Micro-Architecture Levels version 3 as defined by
the amd64 ABI document.
This includes:
- cmov instruction (CMOV instruction set),
- cmpxchg8b ant other 64 bits atomics instruction (CX8 instruction set),
- MMX a single instruction, multiple data (SIMD) instruction set,
- streaming SIMD Extensions (SSE) set, a single instruction, multiple data
(SIMD) instruction set extension,
- SSE2 an incremental upgrade to SSE.
- cmpxchg16b ant other 128 bits atomics instruction (CX16 instruction set),
- SSE3, also called PNI (Prescott New Instructions), is an incremental upgrade
to SSE2,
- SSE4.1 added a dot product instruction and additional integer instructions,
- SSE4.2 added string and text processing instructions that perform character
searches and comparison on two operands of 16 bytes at a time,
- SSSE3 or Supplemental Streaming SIMD Extension 3,
- Advanced Vector Extensions (AVX and AVX2)
- Bit manipulation instructions sets (BMI and BMI2),
- F16C instruction set converting between half-precision
and standard IEEE single-precision floating-point formats,
- LZCNT instruction, Count the Number of Leading Zero Bits,
- OSXSAVE, Save Processor Extended States instruction.
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The corresponding micro-architecture level from the x86-64 psABI.
On ABIs other than the x86-64 psABI they select the same CPU features
as the x86-64 psABI documents for the particular micro-architecture level.