MID-1 EXAMS (MP&MC)

MID-1 EXAMS QUESTIONS (MP&MC)

QUESTIONS

1. (a).Draw the architecture of 8086 microprocessor and explain each block.
    (b).Draw the functional pin diagram of 8255 PPI and also explain its modes of operation.
2. (a).Write an ALP to find the largest number from an unordered array.
    (b).Write an ALP to find the no of even and odd numbers in an array of numbers.
3. Explain the maximum mode operation of 8086 microprocessor with neat read and
     write cycle timing diagrams and also explain the need for bus control.
4. (a).Explain interrupt vector table ? also explain the vector cycle of 8086.
     (b).What do you mean by addressing modes. Explain different modes supported by 8086 by suitable examples.


SET 2

1. (a). Form a effective address for following
      (i) mov AX,[5000h]
     (ii) mov AX,5000[BX]
     (iii) mov AX,5000[BX][SI]
     (iv) mov AX,[BX][SI]    and with having following registers
[AX]=1000,   [BX]=2000,  [SI]=3000,  [DI]=4000,  BP=5000,  [SP]=6000,[CS]=0000
[DS]=1000,   [SS]=2000,   [IP]=7000.
  (b). Explain the following instructions with an example.
     (i).Exchange      (ii). AAA      (iii).push F      (iv).CMPS
2. (a). What is an assembler? What are advantages of assembler directive? List out between machine language & assembly language program.
    (b). Write about the special processor activities.
3. (a). Write an ALP to display a message HAPPY BIRTHDAY on the CRT screen of a micro       computer.
    (b). Write an ALP to move a string from one location to another location.
4.  Draw the functional pin diagram of 8086 microprocessor and explain the functions of each p  in