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1. In the following code, the value in AL is intended to be a signed byte. Explain how the Overflow flag helps, or does not help you, to determine whether the final value in AL falls within a valid signed range.
mov al,-1
add al,130

2. Trace the following program:
1: main PROC
2: mov eax,5
3: add eax,6
4: sub eax, 6
5: mov ebx, eax
What is the value in eax and in ebx?

3. At which level/s can an assembly language program manipulate input/output?
4. How do you reserve space for the stack in a program?
5. How is a source file different from a listing file?

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