arch/x86/src/README.txt
^^^^^^^^^^^^^^^^^^^^^^^
This directory holds x86_64-specific source files. All x86 source reside in
lower-level common, chip-specific, and architecture-specific directories.
common/ Directory
^^^^^^^^^^^^^^^^^
This directory holds source files common to all x86_64 architectures.
Architecture-Specific Directories
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Architecture-specific directories hold common source files shared for by
implementations of specific x86_64 architectures.
intel64
This directory holds logic appropriate for any instantiation of the 64-bit
intel64 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.
broadwell
This is the implementation of NuttX on the Intel Broadwell processors.
