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CS401 Current Midterm Paper Fall 2013 File 6



by Mohsin Butt on December 23, 2013 at 6:24pm
Subjective questions in my paper today....

what type of call function are there? Mention also their names? (2 marks)

For a 32-bit operation in assembly language, which two registers are used to store the dividend and what is the size of dividend in this case? (2 marks)

How local variables are created in assembly program and which instructions are used to create them? (3 marks)

How many bytes will be moved by each of the following block of codes? (3 marks)
a) mov cx, 384
    rep movsb
b) mov cx, 384
    rep movsw

what is divide overflow error? complete following code such that it will cause divide overflow error? (5 marks)
mov bl, ____
mov ax, ____
div bl, _____

In assembly language, why is it preferred to clear the stack by callee rather than caller? Explain (5 marks)
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