Mac OS X for Unix Geeks by Ernest E. Rothman;Brian Jepson;Rich Rosen

Mac OS X for Unix Geeks by Ernest E. Rothman;Brian Jepson;Rich Rosen

Author:Ernest E. Rothman;Brian Jepson;Rich Rosen
Format: mobi, epub
Tags: COMPUTERS / Operating Systems / Macintosh
Publisher: O'Reilly Media
Published: 2009-02-09T00:00:00+00:00


Endianness

CPU architectures are designed to treat the bytes of words in memory as being arranged in big- or little-endian order: big-endian ordering has the most significant byte in the lowest address, whereas little-endian ordering has the most significant byte at the highest byte address.

In general, Intel architectures are little-endian, whereas most Unix/RISC machines, including PowerPC-based Macs, are big-endian.

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Note

The PowerPC is actually bi-endian, meaning that it can run as either big- or little-endian. In practice, bi-endian CPUs run exclusively as big- or little-endian.



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