=========== Intel 80x86 =========== All x86 source reside in lower-level common, chip-specific, and architecture-specific directories. arch/x86/src/common/ Directory ============================== This directory holds source files common to all x86 architectures. Architecture-Specific Directories ================================= Architecture-specific directories hold common source files shared for by implementations of specific x86 architectures. ``i486`` This directory holds logic appropriate for any instantiation of the 32-bit i486 architecture. Chip-Specific directories ========================= The same x86 architecture may be realized in different chip implementations. For SoC chips, in particular, on-chip devices and differing interrupt structures may require special, chip-specific definitions in these chip- specific directories. ``qemu`` This is the implementation of NuttX on the QEMU x86 simulation. .. toctree:: :maxdepth: 1 :glob: */*