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Question

What are the instructions used for up-converting a value from 8 or 16 bits to 32 bits or from 8 bits to 16 bits?

a.

JG and JA instructions

b.

MOVZX and MOVSX instructions

c.

Conditional branch instructions

d.

None of the above

Posted under Reverse Engineering

Answer: (b).MOVZX and MOVSX instructions Explanation:The MOVZX and MOVSX instructions are used for up-converting a value from 8 or 16 bits to 32 bits or from 8 bits to 16 bits.

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Q. What are the instructions used for up-converting a value from 8 or 16 bits to 32 bits or from 8 bits to 16 bits?
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