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CS401 Current Midterm Paper Fall 2013 File 8



Today Paper
Total Questions = 26
Total Marks = 40
Total MCQs of 1 Mark = 20
Short Subjective Question of 2 Marks = 2
Subjective Question of 3 Marks = 2
Subjective Questions of 5 Marks = 2
2 qs of 2 marks
1) a list was given and we have to select only bitwise operators
2) what will be the result of execution of the instruction of the instruction” LDS IS [BP +4]”?
2 qs of 3 marks
1) How many BYTES will be move by each of the following block of codes?
a) MOV cx,384 REP movsb
b) MOV cx,384 REP movsw
2) which instruction is used to swap the values?and what is the only limitation in this instruction?
2 qs of 5 marks
1) procedure about intrrupt
2)Replace the following invalid instruction with the single valid instruction
a. (a)mov IP
b. (b)mov IP,L5
c. sub sp, 2
mov [ss:sp], ax
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