Microprocessor Architecture - Jun 2015

Computer Engineering (Semester 3)

TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks.

Answer any one answer from Q1 and Q2

1 (a) Explain and draw bit pattern for flag register of 80386 DX with significance of each bit.(6 marks) 1 (b) List the features of 80386 DX microprocessor.(3 marks) 1 (c) Explain in brief instruction queue to 8086 microprocessor.(3 marks) 2 (a) Explain architecture of 8086 microprocessor with the help of neat block diagram.(6 marks) 2 (b) Explain the purpose of pointers and index registers.(3 marks) 2 (c) How many segment registers are used by 8086 ? Mention the use.(3 marks)

Answer any one answer from Q3 and Q4

3 (a) Differentiate between CALL and JMP.(3 marks) 3 (b) Explain control inputs BS16# with the help of timing diagram for 16-bit data transfer.(5 marks) 3 (c) Differentiate between direct index addressing mode and base index addressing mode.(4 marks) 4 (a) Explain protected mode & V86 mode.(4 marks) 4 (b) Explain the idle and wait state machine cycle with the help of timing diagram.(5 marks) 4 (c) Explain the following instruction with an example:
(i) ENTER
(ii) LEAVE
(iii) BOUND(3 marks)

Answer any one answer from Q5 and Q6

5 (a) What are the advantages of multicore designing?(3 marks) 5 (b) What are the advantages of cache memory?(4 marks) 5 (c) Explain the execution model of SIMD with neat diagram.(6 marks) 6 (a) What are the advantages of Hyperthreading technology?(4 marks) 6 (b) What are the three common configuration that support multiprocessing? Explain.(6 marks) 6 (c) Define chip multiprocessing.(3 marks)

Answer any one answer from Q7 and Q8

7 (a) Give the features of SS_E.(6 marks) 7 (b) Enlist data types of 64-bit architecture.(3 marks) 7 (c) Explain Hyperthreading with advantages and disadvantages.(4 marks) 8 (a) Draw and explain the block diagram of 64-bit architecture.(6 marks) 8 (b) Explain virtualization technology.(4 marks) 8 (c) Explain briefly the comparability mode and 64-bit mode of IA 64 architecture.(3 marks)