Explain cwd instructions in 8086 family, Electrical Engineering

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Explain CWD instructions in 8086 family with example and their effect on flag.

Convert signed word to signed double word: CWD instruction enlarges the sign bit of a word into AX register to all the bits of the DX register. This is used before a signed word in AX is to be divided through another signed word by using IDIV instructions. No flags are influenced.


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