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|Writing Device Drivers Oracle Solaris 10 1/13 Information Library|
Note - Drivers should not perform floating-point operations, as these operations are not supported in the kernel.
The x86 processors use little-endian byte ordering. The least significant byte (LSB) of an integer is stored at the lowest address of the integer. The most significant byte is stored at the highest address for data items in this processor. For example, byte 7 is the most significant byte for 64-bit processors.