SPPU Computer Engineering (Semester 3)
Microprocessor Architecture
December 2014
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


Solve any one question from Q1 and Q2
1 (a) Explain the following pins of 8086:
i) BHE
ii) ALE
iii) MN/MX.
6 M
1 (b) Explain flag register of 80386.
4 M
1 (c) What is the difference between GDT and LDT?
3 M

2 (a) What are the functions of the following pins:
i) NMI
ii) ERROR#
iii) BE0-BE3.
6 M
2 (b) Explain memory organization of 8086.
4 M
2 (c) How is logical address converted to physical address In 8086?
3 M

Solve any one question from Q3 and Q4
3 (a) What are characteristics of address pipelining in 80386?
4 M
3 (b) Explain timing diagram for pipelined write cycle.
5 M
3 (c) Explain macro in assembly language programming with syntax and example.
3 M

4 (a) Explain the following instructions of 80386:
(i) SLDT
(ii) LEA
(iii) OUT
(iv) CMP
(v) XCHG.
5 M
4 (b) Explain timing diagram for read cycle in non-pipelined Mode
4 M
4 (c) Enlist and explain any three addressing modes of 80386.
3 M

Solve any one question from Q5 and Q6
5 (a) What are the three common configurations that support multiprocessing ? Explain.
6 M
5 (b) What is single instruction multiple data model for parallel processing?
4 M
5 (c) Define CMP.
3 M

6 (a) What are the advantages of multicore designing?
3 M
6 (b) What are the advantages of cache memory?
4 M
6 (c) What are the different architectures of multicore ? Explain.
6 M

Solve any one question from Q7 and Q8
7 (a) Explain hyperthreading with advantages and disadvantages.
5 M
7 (b) Give the features of SSE.
4 M
7 (c) Enlist data types of 64-bit architecture.
3 M

8 (a) Explain virtualization technology.
5 M
8 (b) What are the operating modes of Intel 64-bit architecture?
4 M
8 (c) What are the differences between IA-32 bit Basic Execution Environment and IA-64 bit Basic Execution Environment ?
3 M



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