有关大小头(Big Endian/Little Endian)的知识

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【文件名】:07118@52RD_大小头.pdf
【格　式】:pdf
【大　小】:534K
【简　介】:Endianness is the numbering organization format of data representation in a computer. Endianness
comes in two varieties: big and little. Little-endian (LE) byte ordering assigns the lower byte
address to the low eight bits of a 32-bit memory word, where big-endian (BE) byte order is the
opposite. LE means that the least-significant byte of any multi-byte data field is stored at the lowest
memory address, which is also the address of the larger field; see Figure 1.
All processors are either big- or little-endian. Some processors have a bit in a register that allows
the programmer to select the desired endianness. The Intel XScale core can run in little- or bigendian
as can many of the processors using this core.
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