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MICROPROCESSOR INSTRUCTION REFERENCE->EXT
EXT Sign Extend
Sign Extended Destination -> Destination
Assembler Syntax: | EXT.W Dn | extend byte to word |
| EXT.L Dn | extend word to long word |
Size: Word, Long
Extends a byte in a data register to a word or a long word, or a word in a data register to a long word, by replicating the sign bit to the left.
Condition Codes:
N Set if result negative, else cleared
Z Set if result zero, else cleared
V Always cleared
C Always cleared
X Not affected