can someone check my answers for 12,13,14 and answer 15 please. Thank you. What

Question

can someone check my answers for 12,13,14 and answer 15 please. Thank you.

What prefix would you use with the STOSB instruction to fill all elements of a string with a single value? REP The _____ instruction copies doublewords from the memory location pointed to by ESI to the memory location pointed to by EDI. MOVSB The _____ instruction compares a word operand pointed to by ESI to a word operand pointed to by EDI. CMPSD What does the following code do? mov eax, 7 mov edi OFESET dArray mov ecx, LENGTHOF dArray cld repne scaled jne L1 Loops 7 times Compares value in EAX to elements in dArray until a value not equal to 7 is found or the end of the array is reached. Compares value in AX to elements in dAmay until a value of 7 is found or the end of the array is reached.

Explanation / Answer

Question 12:

what prefix would you use with the STOSB instruction to fill all elements of a string with a single value?

Ans: REP.

your answer is correct

Question 13:

The - instruction copies double words from the memory location pointed to by ESI to the memory location pointed by EDI?

Ans: MOVSW.

your answer is wrong.

Question 14:

The -- instruction compares a word operand pointed to by ESI to a word operand to by EDI?

Ans: CMPSB.

While comparing based on bytes ans is CMPSB.

Question 15:

Ans: Compares value in EAX to elements in dArray until a value of 7 found or the end of the array reachedm

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