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Nest Labs Memory Mapped I/O


Nest Labs Memory Mapped I/O (NLIO) is designed to provide both C and C++ language bindings to macros and functions for:

  1. Determining, at both compile- and run-time, the byte ordering of the target system.
  2. Performing in place byte-swapping of compile-time constants via the C preprocessor as well as functions for performing byte-swapping by value and in place by pointer for 16-, 32-, and 64-bit types.
  3. Safely performing simple, efficient memory-mapped accesses, potentially to unaligned memory locations, with or without byte reordering, to 8-, 16-, 32-, and 64-bit quantities. Functions both with and without pointer management are also available.


There are numerous avenues for nlio support:


nlio follows the Semantic Versioning guidelines for release cycle transparency and to maintain backwards compatibility.


nlio is released under the Apache License, Version 2.0 license. See the LICENSE file for more information.