Differences between version 16 and predecessor to the previous major change of BigEndian.
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| Newer page: | version 16 | Last edited on Sunday, September 20, 2009 2:07:04 am | by AristotlePagaltzis | Revert |
| Older page: | version 14 | Last edited on Saturday, March 19, 2005 11:08:48 am | by AristotlePagaltzis | Revert |
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Opposite of LittleEndian.
See [Endianness].
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+----
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+Odd fact: even on big-endian CPUs, registers are still little-endian. To see this, consider the following pseudo-AssemblyLanguage sequence:
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+* move two-byte integer from ''A'' to ''X''
+* move one-byte integer from ''X'' to ''B''
+
+Question: will the byte at ''B'' end up containing the high byte or the low byte of ''A''?
+
+In little-endian architectures, the answer is always “the low byte”. However, in big-endian architectures, the answer depends on whether ''X'' is a memory location or a register; if it’s a memory location, then ''B'' gets the high byte. Otherwise, it gets the low byte.
