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Microprocessors
Pin Details of 8085 and Interfacing with 8085
Marks 1Marks 2
Instruction Set and Programming with 8085
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1
GATE ECE 1996
MCQ (Single Correct Answer)
+1
-0.3
The following sequence of instructions are executed by an 8085 microprocessor:
1000: LXI SP< 27FF
1003: CALL 1006
1006: POP H

The contents of the stack pointer (SP) and the HL register pair on completion or execution of these instructions are.

A
SP= 27FF, HL = 1003
B
SP= 27FD, HL = 1003
C
SP= 27FF, HL = 1006
D
SP= 27FD, HL = 1006
2
GATE ECE 1996
MCQ (Single Correct Answer)
+1
-0.3
The total number of memory accesses involved (inclusive of the op-code fetch) when an 8085 processor executes, the instruction LDA 2003 is
A
1
B
2
C
3
D
4
3
GATE ECE 1995
MCQ (Single Correct Answer)
+1
-0.3
An 'Assembler' for a microprocessor a used for
A
assembly of processors in a production lines.
B
creation of new programs using different modules.
C
translation of a program from assembly language to machine language.
D
translation of a higher level language into English text.
4
GATE ECE 1993
MCQ (Single Correct Answer)
+1
-0.3
In a microprocessor, the register which holds the address of the next instruction to be fetched is
A
Accumulator
B
Program Counter
C
Stack Pointer
D
Instruction Register
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Questions Asked from Marks 1
GATE ECE 2017 Set 1 (1) GATE ECE 2016 Set 3 (1) GATE ECE 2015 Set 2 (1) GATE ECE 2015 Set 1 (1) GATE ECE 2015 Set 3 (1) GATE ECE 2013 (1) GATE ECE 1998 (1) GATE ECE 1997 (1) GATE ECE 1996 (2) GATE ECE 1995 (1) GATE ECE 1993 (1) GATE ECE 1992 (1) GATE ECE 1989 (1) GATE ECE 1988 (1)
GATE ECE Subjects
Signals and Systems
Network Theory
Control Systems
Digital Circuits
General Aptitude
Electronic Devices and VLSI
Analog Circuits
Engineering Mathematics
Microprocessors
Communications
Electromagnetics