Assembler:Commands:BSWAP

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command bswap operand

The bswap instruction reverse the byte order of the destination. Its used to convert values from Little-Endian to Big-Endian.


Reverses the byte order of a 32-bit / 64-Bit (destination) register. This instruction is provided for converting little-endian values to big-endian format and vice versa.

To swap bytes in a word value (16-bit register), use the XCHG instruction. When the BSWAP instruction references a 16-bit register, the result is undefined.


Contents

[edit] Command Parameters

Parameter Description
operand The operand to reverse byte order on


[edit] Examples

bswap eax
bswap edx
bswap rax
bswap rdx


[edit] See also


[edit] External links

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