C-09-EC-
3470
BOARD DIPLOMA EXAMINATION, (C-09)
OCT/NOV-2012
DCME-FOURTH SEMESTER EXAMINATION
DIPLOMA MICROPROCESSORS QUESTION PAPER
Time: 3 hours]
[Total Marks: 80
PART-A
Instructions: (1) Answer all questions
Each question carries three marks.
- Write the purpose of INTR and MN/MX pins of 8086.
- What are the microcomputer and microprocessor?
- State the use of assembler and debugger.
- Explain ADD and CMP instructions.
- What is the parameter passing in procedures?
- What is interrupt? List the interrupts of 8086.
- Write an assembly language program to subtract a 16-bit number num2 from another 16-bit number num1 and store at num3.
- List any six features of keyboard/display controller.
- What is direct memory access?
- List any six features of 8086.
PART-B
Instructions: (1) Answer any five questions.
(2) Each question carries ten marks.
(3) Answers should be comprehensive and the criteria for valuation is
the content but not the length of the answer
- Explain any five addressing modes of 8086.
- Briefly explain any five instructions that affect flags of 8086.
- What us subroutines? Explain the CALL and RET instructions of 8086.
- write an assembly language program to find large of N 8-bit numbers stored from source and store at result.
- Explain the working of USART with diagram.
- Draw the diagram of programmable peripheral interface of operations.
- Draw and explain the internal block of diagram of Pentium IV processor.
- (a) Write the function of instruction queue, sp, ip , bp of 8086.
(b) Draw the block diagram of
interrupt controller.
MICRO PROCESSOR