Birla Institute of Technology (BIT Mesra) 2007 MS Software Engineering Computer Organization & Architecture (closed book) - Question Paper

Birla Institute of Technology and Science, Pilani
Distance Learning Programmes Division
MS Software Engineering in Collaboration with Wipro Technologies
Second Semester 2003 – 2004
Mid semester
Regular
Course No. : SEWP ZC413
Course Name : Computer Organization & Architecture
Nature of examination : Closed Book examination
weightage : 40 %
Duration : 2Hours
Date : May 08, 2004 (FN)

1. a Multiply 13 and nine by normal multiplication
b. Divide 169 and 12 by normal division (5)

2. By considering dividend as 1010 and divisor as 0011 obtain the quotient and remainder by restoration and non-restoration methods. Comment on the outcome which method is better and why? (8)

3. Write an assembly language program to evaluate the fallowing expression X=(A+B+C) / (D-E*F) on a 32 bit processor where A,B,C,D,E,F are data elements. MUL and DIV instructions can be used. Use at lowest 1 indirect addressing instruction: (5)

4. For the provided control signal listing draw the timing diagram
r2out,MAR in
r1out, MDRin P
MARout, MDRout in M, write (5)

5. Write a micro program for the listing shown
Pcout,MARin,Yin, selectC,add,Zin
Zout,Pcin,MARout,MDRinM,read
MDRoutP,IRin
Pcout,Yin
Offset _ field _ of_ IRout, choose y, add, Zin
Zout,Pcin, End (5)

6. By normal multiplication find the products for the fallowing
7*3
7*(-3)
(-7)*3
(-7)*(-3) (4)

7. Write a generic program to perform the operation :
Add r1, r2, r3, presume that the propagation delays along the bus and through ALU
are 0.3 and two nsecs respectively. The registers require 0.2 nsecs for handling data or address what is the total time needed to evaluate the above program.
Write the control signal listing for the program you have written: ( 8)



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Earning:   Approval pending.