EEM (8085) LAST YEAR PAPERS OF SEMESTER 3RD
Microprocessor (8085)
As we all know in 2021 the syllabus of EEM was changed a little
bit. we have some old years paper by which you can make an idea about the
important exam questions. these old year papers are not available anywhere in
the market that's why I am posting EEM Last Year Papers.
To
download the file CLICK HERE
For solved
paper CLICK HERE
Marks
: 30
Attempt
Five questions in all, selecting at least one question from each unit.
Q. No. 1 is compulsory. All
questions carry equal marks.
1(a) Give comparison between SUB and
CMP. (1)
(b) Explain opcode and operand in an
instruction. E
(c) If carry slag is zero, then show that RAL
instruction produces a multiplication of accumulator contents by a factor.
(d) which single instruction allows you add
two double byte numbers ?
(1.5 x 4 )
Unit 1
2. (a) Discuss the functions of program
counter, stack pointer and status flags in the architecture of 8085
microprocessor. (3)
(b) Briefly discuss the signals HOLD
and HLDA of 8085 microprocessor. Also discuss the role of Address Buffer. (3)
3.) Discuss the function of the various
control signals of 8085 microprocessor needed for the operation of its CPU. (6)
Unit II
4.) Discuss various addressing modes of
8085 microprocessor and give at least one example of each addressing mode. (6)
5.) Explain the following instruction
with suitable example
(i.) LDA address
(ii) MOV reg,
(iii) ANA data
(iv) CMC
(v) .INC address
(vi) JPO address.
Unit
III
6.) Write an Assembly Language Program
for 8085 for multibyte (N bytes) subtraction. The number of bytes (N) is stored
in 2100 H location. The minuend bytes are stored in the memory locations
starting at 2101 H and the subtrahend bytes are stored in the memory locations
starting at 2201 H. The answer should be stored in the memory locations
starting at 2101 H. (6)
7 (a) Write a delay subroutine to
introduce a time delay of 10 in sec. The clock frequency is 2 MHz. Assume any
number of T states for the instructions used. 3
(b) Explain CMP and CPI instruction.
(c) Differentiate between the
instruction ADC and ADI
Unit IV
8 (a) Define stack, stack pointer and
describe their uses ( 3)
(b) Explain, how PUSH and POP instructions are
being executed. (3)
9) Explain, how CALL and RET are
executed. (2)
2 Write a program for uP 8085 that
multiplies two Hex numbers 890 and 02 and store the result in memory.
(4)
This EEM 8085 paper is of year 2018 and
more 8085 original KUK papers are available to read CLICK HERE
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These papers are also available in solved
format to Download them CLICK HERE.
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