EC09 505: First sessional Question Paper

JYOTHI ENGINEERING COLLEGE, CHERUTHURUTHY

FIRST SESSIONAL EXAMINATION AUGUST 2011

EC09 505: MICROPROCESSORS AND MICROCONTROLLERS

Time: 2 hrs                                                                                                 Max Marks: 50

PART A

(Answer all questions)

1. Write an example for 1. Register Relative 2.Register Indirect Addressing mode
2. Differentiate between JMP and LOOP Instruction
3. Explain the different steps in 8086 Assembly Language Program(ALP) development
4. What is NEG instruction? Write an alternate method for NEG operation
5. If DS=7FA2_H    and offset is 438E_H , Calculate 1. Physical Address 2. Lower Range 3. Upper range of Data Segment 4.Logical Address

                                               

                                                                                                             (2*5=10)

PART B

(Answer all questions)

1. What is segmentation? How is it organized in 8086 Microprocessor?
2. Explain Flag register in 8086 microprocessor
3. Write a short note on following instruction 1. JZ 2.JB 3.JA
4. Write a 8086 ALP to find sum of 10 numbers. First no. should store in location 2000H and result in 3000H

                                                                                                             (4*5=20)

PART C

(Answer all questions)

1.      Explain the architecture of 8086 Microprocessor with suitable block diagrams.

2.      Write an Algorithm and Assembly Language Program to covert 2 digit Decimal number to Hexadecimal number.   

                                                                                                                  (2*10=20)