1
GATE ECE 2004
MCQ (Single Correct Answer)
+2
-0.6
It is desired to multiply the numbers 0AH by 0BH and store the result in the accumulator. The numbers are available in registers B and C respectively. A part of the 8085 program for this purpose is given below:
MVI A, 00H
LOOP:.........
...............
HLT END
MVI A, 00H
LOOP:.........
...............
HLT END
The sequence of instruction to be complete the program would be
2
GATE ECE 2004
MCQ (Single Correct Answer)
+2
-0.6
Consider the sequence of 8085 instructions given below.
LXI H, 9258
MOV A, M
CMA
MOV M, A
Which one of the following is performed by this sequence?
LXI H, 9258
MOV A, M
CMA
MOV M, A
Which one of the following is performed by this sequence?
3
GATE ECE 2003
MCQ (Single Correct Answer)
+2
-0.6
In an 8085 microprocessor, the instruction CMP B has been executed while the
content of the accumulator is less than that of register B. As a result
4
GATE ECE 2002
MCQ (Single Correct Answer)
+2
-0.6
Consider the following assembly language program.
The execution of the above program in an 8085 microprocessor will result in

Questions Asked from Instruction Set and Programming with 8085 (Marks 2)
Number in Brackets after Paper Indicates No. of Questions
GATE ECE Subjects
Signals and Systems
Representation of Continuous Time Signal Fourier Series
Discrete Time Signal Fourier Series Fourier Transform
Discrete Time Signal Z Transform
Continuous Time Linear Invariant System
Transmission of Signal Through Continuous Time LTI Systems
Discrete Time Linear Time Invariant Systems
Sampling
Continuous Time Signal Laplace Transform
Discrete Fourier Transform and Fast Fourier Transform
Transmission of Signal Through Discrete Time Lti Systems
Miscellaneous
Fourier Transform
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics