The df/fword statement's main use is declaring 48 bit pointers for use in 32 bit protected mode on the 80386 and later. Although it is possible to create an arbitrary 6 byte variable, the directive is best used for 48 bit far pointers on the 80386.
JMP FWORD PTR [FWordPtr]
- Hyde, Randall. "Art of Assembly". Retrieved 25 January 2014.
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