[ trixie ]
[ sid ]
[ 原始碼： isa-support ]
套件：x86-64-v2-support（26）
CPU feature checking - require x86-64-v2
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.
This is a mostly dummy package which checks for x86-64-v2 and refuses to install on unsupported hardware.
This is the Micro-Architecture Levels version 2 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.
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.
其他與 x86-64-v2-support 有關的套件
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- dep: isa-support (= 26)
- CPU feature checking - common back-end