131. Which of the following is a 3-byte instruction?

1. 1. LDA 2050 H

   
   
   

   2. MVI A, 32 H

   
   
   

   3. MOV C, A

   
   
   

   4. ADD B

   
   
   

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   LDA 2050 H

   Correct Option: A

   LDA 2050 H

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132. Which of the following is an example of direct addressing?

1. 1. STA 2400 H

   
   
   

   2. IN 02

   
   
   

   3. Both (A) and (B)

   
   
   

   4. None of these

   
   
   

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   NA

   Correct Option: C

   NA

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133. Which of the following is an example of implicit addressing?

1. 1. CMA

   
   
   

   2. MVI A, 05

   
   
   

   3. Both (A) and (B)

   
   
   

   4. None of these

   
   
   

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   CMA The instruction does not require any operand

   Correct Option: A

   CMA The instruction does not require any operand

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134. Which is the pin that is utilized for differentiating I/O and memory operations?

1. 1. 31

   
   
   

   2. 32

   
   
   

   3. 33

   
   
   

   4. 34

   
   
   

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   34 IO/M: For IO it is set to high and for memory operations it is low

   Correct Option: D

   34 IO/M: For IO it is set to high and for memory operations it is low

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135. Which pin of 8085 is connected to the supply voltage?

1. 1. 1

   
   
   

   2. 20

   
   
   

   3. 21

   
   
   

   4. 40

   
   
   

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   40. The pin no. 40 is connected to +5V power supply

   Correct Option: D

   40. The pin no. 40 is connected to +5V power supply

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