GATE EC 1997 Set 1 Q4.4 — Number Representations

copy the original byte to the less significant byte of the word and fill the more significant with zeros

copy the original byte to the more significant byte of the word and fill the less significant byte with zeros

copy the original byte to the less significant byte of the word and make each fit of the more significant byte equal to the most significant bit of the original byte

copy the original byte to the less significant byte as well as the more significant byte of the word