# CPU Information This module provides an API for querying some CPU features, such as ISA extension support, that works across multiple architectures and platforms. ## Dependencies This module requires the once portable-snippet module. If you do not include once.h before cpu.h, cpu.h will automatically include "../once/once.h". If you include once.h manually you are free to use whatever directory structure you like. ## Limitations This code currently only supports x86/x86-64 and ARM.