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Advance Electronics-2
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Question 1
Consider the following instructions of 8085 microprocessor
1). MOV B,C
2). STA address
3). ORI byte
The correct sequence in the decreasing order of their respective memory space requirement is
1). MOV B,C
2). STA address
3). ORI byte
The correct sequence in the decreasing order of their respective memory space requirement is
Question 2
Match List- I with List-II and select the correct answer using the code given below the lists:
List-I
A). Immediate addressing
B). Implied addressing
C). Register addressing
D). Direct addressing
List-II
1). LDA 308C
2). MOV A, B
3). LXI H, 2050
4). RRC
List-I
A). Immediate addressing
B). Implied addressing
C). Register addressing
D). Direct addressing
List-II
1). LDA 308C
2). MOV A, B
3). LXI H, 2050
4). RRC
Question 3
If the CALL instruction of 8085 in the main program is conditional then RETURN instruction in the subroutine can be
Question 4
The number of memory cycles required to execute the following 8085 instructions
I. LDA 3000H
II. LXI D, FOF 1H
Would be
I. LDA 3000H
II. LXI D, FOF 1H
Would be
Question 5
A memory is mapped to 8085 microprocessor. The memory map is B00F to FCDE H. The number of bytes stored in memory are (____________)10.
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