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Electronics and Communication Engineering - Microprocessors

Exercise : Microprocessors - Section 10
6.
An instruction using immediate addressing mode in 8085 is
2 bytes long
3 bytes long
2 or 3 bytes long
1 or 2 or 3 bytes long
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
Consider the following statements about 8085
  1. The instruction LDA uses direct addressing mode.
  2. The instruction MVI uses direct addressing mode.
  3. The instruction MVI uses immediate addressing mode.
  4. The instruction LDA uses immediate addressing mode.
Which of the above are correct?
1 and 3 only
3 and 4 only
1 and 2 only
2 only
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
Consider the directive T : DS105. This directive
directs the assembler to reserve a sequence of 105 bytes in the memory
directs the assembler to reserve a sequence of 105 bits in the memory
directs the assembler to reserve a sequence of consecutive 105 bytes in the memory
directs the assembler to reserve a sequence of consecutive 105 bits in the memory
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
Which of the following is not a valid logical expression in Pascal?
A > = B
A < = B
A = < B
A < > B
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
Which of the following instructions in 8085 does not belong to data transfer group?
LDA addr
STA addr
XCHG
SUB r
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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