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arch/x86/src/README.txt
^^^^^^^^^^^^^^^^^^^^^^^
This directory holds x86-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 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.
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