Microprocessor Architecture - Dec 2014

Computer Engg (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.

Solve any one question from Q1 and Q2

1 (a) Explain the following pins of 8086:
i) BHE
ii) ALE
iii) MN/MX.(6 marks) 1 (b) Explain flag register of 80386.(4 marks) 1 (c) What is the difference between GDT and LDT?(3 marks) 2 (a) What are the functions of the following pins:
i) NMI
ii) ERROR#
iii) BE₀-BE₃.(6 marks) 2 (b) Explain memory organization of 8086.(4 marks) 2 (c) How is logical address converted to physical address In 8086?(3 marks)

Solve any one question from Q3 and Q4

3 (a) What are characteristics of address pipelining in 80386?(4 marks) 3 (b) Explain timing diagram for pipelined write cycle.(5 marks) 3 (c) Explain macro in assembly language programming with syntax and example.(3 marks) 4 (a) Explain the following instructions of 80386:
(i) SLDT
(ii) LEA
(iii) OUT
(iv) CMP
(v) XCHG.(5 marks) 4 (b) Explain timing diagram for read cycle in non-pipelined Mode(4 marks) 4 (c) Enlist and explain any three addressing modes of 80386.(3 marks)

Solve any one question from Q5 and Q6

5 (a) What are the three common configurations that support multiprocessing ? Explain.(6 marks) 5 (b) What is single instruction multiple data model for parallel processing?(4 marks) 5 (c) Define CMP.(3 marks) 6 (a) What are the advantages of multicore designing?(3 marks) 6 (b) What are the advantages of cache memory?(4 marks) 6 (c) What are the different architectures of multicore ? Explain.(6 marks)

Solve any one question from Q7 and Q8

7 (a) Explain hyperthreading with advantages and disadvantages.(5 marks) 7 (b) Give the features of SSE.(4 marks) 7 (c) Enlist data types of 64-bit architecture.(3 marks) 8 (a) Explain virtualization technology.(5 marks) 8 (b) What are the operating modes of Intel 64-bit architecture?(4 marks) 8 (c) What are the differences between IA-32 bit Basic Execution Environment and IA-64 bit Basic Execution Environment ?(3 marks)