Please just answer if its T/F NEED NO EXPLANATION 1. Suppose BX and DX both cont
ID: 3803120 • Letter: P
Question
Please just answer if its T/F NEED NO EXPLANATION
1. Suppose BX and DX both contain positive integers. If adding them produces a negative result, the Overflow flag will be set.
True/ False
2. The SAHF instruction copies the CPU status flags to the AH register.
True/False
3. The Overflow flag will never be set when subtracting a positive integer from a negative integer.
True/False
4. When you move a 16-bit constant or an 8-bit constant into a 64-bit register, the upper bits of the destination operand are cleared.
True/False
5. The MOVSX instruction can use a variable as the source operand.
True/False
Explanation / Answer
1. Suppose BX and DX both contain positive integers. If adding them produces a negative result, the Overflow flag will be set.
False
2. The SAHF instruction copies the CPU status flags to the AH register.
True
3. The Overflow flag will never be set when subtracting a positive integer from a negative integer.
True
4. When you move a 16-bit constant or an 8-bit constant into a 64-bit register, the upper bits of the destination operand are cleared.
False
5. The MOVSX instruction can use a variable as the source operand.
True