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Thread: CS401 Assignment # 2- Help needed

  1. #1

    CS401 Assignment # 2- Help needed

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    Question_1: [marks: 10]
    Find the 2’s complement of a number using bitwise logical operator.

    Question_2: [marks: 10]
    Take a random number of word (dw), form and input this to a subroutine “Is Number Power of Two”. Check number is in power of 2 using bitwise logical operators and then display the return result on the screen if the number is even it diplay that number is even if the number is odd then it display the number is odd.

    Due date: 22-11-2010

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  2. #2
    Kindly help in solving this assignment....please!

  3. #3
    Junior Member
    Join Date
    May 2010
    Hi Anya,
    i think today is bonus day for ur assignment..
    i have gOt this little help that may help u ...as its not my subject but my brothers

    so kindly...have a look

    Below is the idea solution:
    Take a number and move in one variable like AX.
    Use NOT to invert.
    Add 1 to it.
    Answer is 2.s complement,

    Pseudo code:
    move Ax, 10
    Not AX
    Add ax,1

    Use the examples in handoouts (print number + hello world).
    write a sub routine to check for even or odd, if it it odd (divide by 2, if remainder in dx is not zero, it is odd), then exit from sub routine using ret, and display the result,
    If number is even, the check for power of two. Algoeithim is divide the number by 2 untill divider is 1 and check for remainder dx using XOR. if remainder is 1 then it is not power of 2,

    subriutine of clear screen
    subroutine to display
    subroutine to check even
    move AX,10 ;number to check
    move bx, 2
    div bx,
    cmp dx,0
    jnz outofsequence
    move AX,10 ;number to check
    move bx, 2
    div bx,
    cmp bx,1
    jmb mainloop
    XOR bx, dx
    cmp bx, 0
    if not 0, number is not power of 2,
    else number is power of 2,
    ret main loop
    call display in main loop

    you need to use stack in your program too.

    I hope now it will be easy to write the program.

    best regards

  4. #4

  5. #5
    Junior Member
    Join Date
    Apr 2011
    cs 402 ki assingment ka soln post kr dain.it is third assingment.it is difficult 4 me

  6. #6
    Administrator Xpert's Avatar
    Join Date
    May 2010


    where is your assignment i can not see your assignment

  7. #7
    Administrator Vuhelper's Avatar
    Join Date
    Apr 2011
    cs402 solution


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